--- /dev/null
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# Copyright (C) 2005-2006 Atmel Corporation.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB := $(obj)lib$(CPU).a
+
+START-y += start.o
+
+COBJS-y += cpu.o
+COBJS-$(CONFIG_SYS_HSDRAMC) += hsdramc.o
+COBJS-y += exception.o
+COBJS-y += cache.o
+COBJS-y += interrupts.o
+COBJS-$(CONFIG_PORTMUX_PIO) += portmux-pio.o
+COBJS-$(CONFIG_PORTMUX_GPIO) += portmux-gpio.o
+
+SRCS := $(START-y:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+START := $(addprefix $(obj),$(START-y))
+
+all: $(obj).depend $(START) $(LIB)
+
+$(LIB): $(OBJS)
+ $(AR) $(ARFLAGS) $@ $^
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
--- /dev/null
+#
+# Copyright (C) 2005-2006 Atmel Corporation
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB := $(obj)lib$(SOC).a
+
+COBJS := portmux.o clk.o
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
+
+all: $(obj).depend $(LIB)
+
+$(LIB): $(OBJS)
+ $(AR) $(ARFLAGS) $@ $^
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
--- /dev/null
+/*
+ * Copyright (C) 2005-2008 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/clk.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/portmux.h>
+
+#include "sm.h"
+
+void clk_init(void)
+{
+ uint32_t cksel;
+
+ /* in case of soft resets, disable watchdog */
+ sm_writel(WDT_CTRL, SM_BF(KEY, 0x55));
+ sm_writel(WDT_CTRL, SM_BF(KEY, 0xaa));
+
+#ifdef CONFIG_PLL
+ /* Initialize the PLL */
+ sm_writel(PM_PLL0, (SM_BF(PLLCOUNT, CONFIG_SYS_PLL0_SUPPRESS_CYCLES)
+ | SM_BF(PLLMUL, CONFIG_SYS_PLL0_MUL - 1)
+ | SM_BF(PLLDIV, CONFIG_SYS_PLL0_DIV - 1)
+ | SM_BF(PLLOPT, CONFIG_SYS_PLL0_OPT)
+ | SM_BF(PLLOSC, 0)
+ | SM_BIT(PLLEN)));
+
+ /* Wait for lock */
+ while (!(sm_readl(PM_ISR) & SM_BIT(LOCK0))) ;
+#endif
+
+ /* Set up clocks for the CPU and all peripheral buses */
+ cksel = 0;
+ if (CONFIG_SYS_CLKDIV_CPU)
+ cksel |= SM_BIT(CPUDIV) | SM_BF(CPUSEL, CONFIG_SYS_CLKDIV_CPU - 1);
+ if (CONFIG_SYS_CLKDIV_HSB)
+ cksel |= SM_BIT(HSBDIV) | SM_BF(HSBSEL, CONFIG_SYS_CLKDIV_HSB - 1);
+ if (CONFIG_SYS_CLKDIV_PBA)
+ cksel |= SM_BIT(PBADIV) | SM_BF(PBASEL, CONFIG_SYS_CLKDIV_PBA - 1);
+ if (CONFIG_SYS_CLKDIV_PBB)
+ cksel |= SM_BIT(PBBDIV) | SM_BF(PBBSEL, CONFIG_SYS_CLKDIV_PBB - 1);
+ sm_writel(PM_CKSEL, cksel);
+
+#ifdef CONFIG_PLL
+ /* Use PLL0 as main clock */
+ sm_writel(PM_MCCTRL, SM_BIT(PLLSEL));
+
+#ifdef CONFIG_LCD
+ /* Set up pixel clock for the LCDC */
+ sm_writel(PM_GCCTRL(7), SM_BIT(PLLSEL) | SM_BIT(CEN));
+#endif
+#endif
+}
+
+unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
+ unsigned long rate, unsigned long parent_rate)
+{
+ unsigned long divider;
+
+ if (rate == 0 || parent_rate == 0) {
+ sm_writel(PM_GCCTRL(id), 0);
+ return 0;
+ }
+
+ divider = (parent_rate + rate / 2) / rate;
+ if (divider <= 1) {
+ sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN));
+ rate = parent_rate;
+ } else {
+ divider = min(255, divider / 2 - 1);
+ sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN) | SM_BIT(DIVEN)
+ | SM_BF(DIV, divider));
+ rate = parent_rate / (2 * (divider + 1));
+ }
+
+ return rate;
+}
--- /dev/null
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/chip-features.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/portmux.h>
+
+/*
+ * Lots of small functions here. We depend on --gc-sections getting
+ * rid of the ones we don't need.
+ */
+void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width,
+ unsigned long flags, unsigned long drive_strength)
+{
+ unsigned long porte_mask = 0;
+
+ if (bus_width > 16)
+ portmux_select_peripheral(PORTMUX_PORT_E, 0xffff,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+ if (addr_width > 23)
+ porte_mask |= (((1 << (addr_width - 23)) - 1) & 7) << 16;
+ if (flags & PORTMUX_EBI_CS(2))
+ porte_mask |= 1 << 25;
+ if (flags & PORTMUX_EBI_CS(4))
+ porte_mask |= 1 << 21;
+ if (flags & PORTMUX_EBI_CS(5))
+ porte_mask |= 1 << 22;
+ if (flags & (PORTMUX_EBI_CF(0) | PORTMUX_EBI_CF(1)))
+ porte_mask |= (1 << 19) | (1 << 20) | (1 << 23);
+
+ portmux_select_peripheral(PORTMUX_PORT_E, porte_mask,
+ PORTMUX_FUNC_A, 0);
+
+ if (flags & PORTMUX_EBI_NWAIT)
+ portmux_select_peripheral(PORTMUX_PORT_E, 1 << 24,
+ PORTMUX_FUNC_A, PORTMUX_PULL_UP);
+}
+
+#ifdef AT32AP700x_CHIP_HAS_MACB
+void portmux_enable_macb0(unsigned long flags, unsigned long drive_strength)
+{
+ unsigned long portc_mask;
+
+ portc_mask = (1 << 3) /* TXD0 */
+ | (1 << 4) /* TXD1 */
+ | (1 << 7) /* TXEN */
+ | (1 << 8) /* TXCK */
+ | (1 << 9) /* RXD0 */
+ | (1 << 10) /* RXD1 */
+ | (1 << 13) /* RXER */
+ | (1 << 15) /* RXDV */
+ | (1 << 16) /* MDC */
+ | (1 << 17); /* MDIO */
+
+ if (flags & PORTMUX_MACB_MII)
+ portc_mask |= (1 << 0) /* COL */
+ | (1 << 1) /* CRS */
+ | (1 << 2) /* TXER */
+ | (1 << 5) /* TXD2 */
+ | (1 << 6) /* TXD3 */
+ | (1 << 11) /* RXD2 */
+ | (1 << 12) /* RXD3 */
+ | (1 << 14); /* RXCK */
+
+ if (flags & PORTMUX_MACB_SPEED)
+ portc_mask |= (1 << 18);/* SPD */
+
+ /* REVISIT: Some pins are probably pure outputs */
+ portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+}
+
+void portmux_enable_macb1(unsigned long flags, unsigned long drive_strength)
+{
+ unsigned long portc_mask = 0;
+ unsigned long portd_mask;
+
+ portd_mask = (1 << 13) /* TXD0 */
+ | (1 << 14) /* TXD1 */
+ | (1 << 11) /* TXEN */
+ | (1 << 12) /* TXCK */
+ | (1 << 10) /* RXD0 */
+ | (1 << 6) /* RXD1 */
+ | (1 << 5) /* RXER */
+ | (1 << 4) /* RXDV */
+ | (1 << 3) /* MDC */
+ | (1 << 2); /* MDIO */
+
+ if (flags & PORTMUX_MACB_MII)
+ portc_mask = (1 << 19) /* COL */
+ | (1 << 23) /* CRS */
+ | (1 << 26) /* TXER */
+ | (1 << 27) /* TXD2 */
+ | (1 << 28) /* TXD3 */
+ | (1 << 29) /* RXD2 */
+ | (1 << 30) /* RXD3 */
+ | (1 << 24); /* RXCK */
+
+ if (flags & PORTMUX_MACB_SPEED)
+ portd_mask |= (1 << 15);/* SPD */
+
+ /* REVISIT: Some pins are probably pure outputs */
+ portmux_select_peripheral(PORTMUX_PORT_D, portc_mask,
+ PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+ portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+ PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_MMCI
+void portmux_enable_mmci(unsigned int slot, unsigned long flags,
+ unsigned long drive_strength)
+{
+ unsigned long mask;
+ unsigned long portmux_flags = PORTMUX_PULL_UP;
+
+ /* First, the common CLK signal. It doesn't need a pull-up */
+ portmux_select_peripheral(PORTMUX_PORT_A, 1 << 10,
+ PORTMUX_FUNC_A, 0);
+
+ if (flags & PORTMUX_MMCI_EXT_PULLUP)
+ portmux_flags = 0;
+
+ /* Then, the per-slot signals */
+ switch (slot) {
+ case 0:
+ mask = (1 << 11) | (1 << 12); /* CMD and DATA0 */
+ if (flags & PORTMUX_MMCI_4BIT)
+ /* DATA1..DATA3 */
+ mask |= (1 << 13) | (1 << 14) | (1 << 15);
+ portmux_select_peripheral(PORTMUX_PORT_A, mask,
+ PORTMUX_FUNC_A, portmux_flags);
+ break;
+ case 1:
+ mask = (1 << 6) | (1 << 7); /* CMD and DATA0 */
+ if (flags & PORTMUX_MMCI_4BIT)
+ /* DATA1..DATA3 */
+ mask |= (1 << 8) | (1 << 9) | (1 << 10);
+ portmux_select_peripheral(PORTMUX_PORT_B, mask,
+ PORTMUX_FUNC_B, portmux_flags);
+ break;
+ }
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_SPI
+void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength)
+{
+ unsigned long pin_mask;
+
+ /* MOSI and SCK */
+ portmux_select_peripheral(PORTMUX_PORT_A, (1 << 1) | (1 << 2),
+ PORTMUX_FUNC_A, 0);
+ /* MISO may float */
+ portmux_select_peripheral(PORTMUX_PORT_A, 1 << 0,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+
+ /* Set up NPCSx as GPIO outputs, initially high */
+ pin_mask = (cs_mask & 7) << 3;
+ if (cs_mask & (1 << 3))
+ pin_mask |= 1 << 20;
+
+ portmux_select_gpio(PORTMUX_PORT_A, pin_mask,
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+}
+
+void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength)
+{
+ /* MOSI and SCK */
+ portmux_select_peripheral(PORTMUX_PORT_B, (1 << 1) | (1 << 5),
+ PORTMUX_FUNC_B, 0);
+ /* MISO may float */
+ portmux_select_peripheral(PORTMUX_PORT_B, 1 << 0,
+ PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+
+ /* Set up NPCSx as GPIO outputs, initially high */
+ portmux_select_gpio(PORTMUX_PORT_B, (cs_mask & 7) << 2,
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+ portmux_select_gpio(PORTMUX_PORT_A, (cs_mask & 8) << (27 - 3),
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_LCDC
+void portmux_enable_lcdc(int pin_config)
+{
+ unsigned long portc_mask = 0;
+ unsigned long portd_mask = 0;
+ unsigned long porte_mask = 0;
+
+ switch (pin_config) {
+ case 0:
+ portc_mask = (1 << 19) /* CC */
+ | (1 << 20) /* HSYNC */
+ | (1 << 21) /* PCLK */
+ | (1 << 22) /* VSYNC */
+ | (1 << 23) /* DVAL */
+ | (1 << 24) /* MODE */
+ | (1 << 25) /* PWR */
+ | (1 << 26) /* DATA0 */
+ | (1 << 27) /* DATA1 */
+ | (1 << 28) /* DATA2 */
+ | (1 << 29) /* DATA3 */
+ | (1 << 30) /* DATA4 */
+ | (1 << 31); /* DATA5 */
+
+ portd_mask = (1 << 0) /* DATA6 */
+ | (1 << 1) /* DATA7 */
+ | (1 << 2) /* DATA8 */
+ | (1 << 3) /* DATA9 */
+ | (1 << 4) /* DATA10 */
+ | (1 << 5) /* DATA11 */
+ | (1 << 6) /* DATA12 */
+ | (1 << 7) /* DATA13 */
+ | (1 << 8) /* DATA14 */
+ | (1 << 9) /* DATA15 */
+ | (1 << 10) /* DATA16 */
+ | (1 << 11) /* DATA17 */
+ | (1 << 12) /* DATA18 */
+ | (1 << 13) /* DATA19 */
+ | (1 << 14) /* DATA20 */
+ | (1 << 15) /* DATA21 */
+ | (1 << 16) /* DATA22 */
+ | (1 << 17); /* DATA23 */
+ break;
+
+ case 1:
+ portc_mask = (1 << 20) /* HSYNC */
+ | (1 << 21) /* PCLK */
+ | (1 << 22) /* VSYNC */
+ | (1 << 25) /* PWR */
+ | (1 << 31); /* DATA5 */
+
+ portd_mask = (1 << 0) /* DATA6 */
+ | (1 << 1) /* DATA7 */
+ | (1 << 7) /* DATA13 */
+ | (1 << 8) /* DATA14 */
+ | (1 << 9) /* DATA15 */
+ | (1 << 16) /* DATA22 */
+ | (1 << 17); /* DATA23 */
+
+ porte_mask = (1 << 0) /* CC */
+ | (1 << 1) /* DVAL */
+ | (1 << 2) /* MODE */
+ | (1 << 3) /* DATA0 */
+ | (1 << 4) /* DATA1 */
+ | (1 << 5) /* DATA2 */
+ | (1 << 6) /* DATA3 */
+ | (1 << 7) /* DATA4 */
+ | (1 << 8) /* DATA8 */
+ | (1 << 9) /* DATA9 */
+ | (1 << 10) /* DATA10 */
+ | (1 << 11) /* DATA11 */
+ | (1 << 12) /* DATA12 */
+ | (1 << 13) /* DATA16 */
+ | (1 << 14) /* DATA17 */
+ | (1 << 15) /* DATA18 */
+ | (1 << 16) /* DATA19 */
+ | (1 << 17) /* DATA20 */
+ | (1 << 18); /* DATA21 */
+ break;
+ }
+
+ /* REVISIT: Some pins are probably pure outputs */
+ portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+ portmux_select_peripheral(PORTMUX_PORT_D, portd_mask,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+ portmux_select_peripheral(PORTMUX_PORT_E, porte_mask,
+ PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+}
+#endif
--- /dev/null
+/*
+ * Register definitions for System Manager
+ */
+#ifndef __CPU_AT32AP_SM_H__
+#define __CPU_AT32AP_SM_H__
+
+/* SM register offsets */
+#define SM_PM_MCCTRL 0x0000
+#define SM_PM_CKSEL 0x0004
+#define SM_PM_CPU_MASK 0x0008
+#define SM_PM_HSB_MASK 0x000c
+#define SM_PM_PBA_MASK 0x0010
+#define SM_PM_PBB_MASK 0x0014
+#define SM_PM_PLL0 0x0020
+#define SM_PM_PLL1 0x0024
+#define SM_PM_VCTRL 0x0030
+#define SM_PM_VMREF 0x0034
+#define SM_PM_VMV 0x0038
+#define SM_PM_IER 0x0040
+#define SM_PM_IDR 0x0044
+#define SM_PM_IMR 0x0048
+#define SM_PM_ISR 0x004c
+#define SM_PM_ICR 0x0050
+#define SM_PM_GCCTRL(x) (0x0060 + 4 * x)
+#define SM_RTC_CTRL 0x0080
+#define SM_RTC_VAL 0x0084
+#define SM_RTC_TOP 0x0088
+#define SM_RTC_IER 0x0090
+#define SM_RTC_IDR 0x0094
+#define SM_RTC_IMR 0x0098
+#define SM_RTC_ISR 0x009c
+#define SM_RTC_ICR 0x00a0
+#define SM_WDT_CTRL 0x00b0
+#define SM_WDT_CLR 0x00b4
+#define SM_WDT_EXT 0x00b8
+#define SM_RC_RCAUSE 0x00c0
+#define SM_EIM_IER 0x0100
+#define SM_EIM_IDR 0x0104
+#define SM_EIM_IMR 0x0108
+#define SM_EIM_ISR 0x010c
+#define SM_EIM_ICR 0x0110
+#define SM_EIM_MODE 0x0114
+#define SM_EIM_EDGE 0x0118
+#define SM_EIM_LEVEL 0x011c
+#define SM_EIM_TEST 0x0120
+#define SM_EIM_NMIC 0x0124
+
+/* Bitfields in PM_CKSEL */
+#define SM_CPUSEL_OFFSET 0
+#define SM_CPUSEL_SIZE 3
+#define SM_CPUDIV_OFFSET 7
+#define SM_CPUDIV_SIZE 1
+#define SM_HSBSEL_OFFSET 8
+#define SM_HSBSEL_SIZE 3
+#define SM_HSBDIV_OFFSET 15
+#define SM_HSBDIV_SIZE 1
+#define SM_PBASEL_OFFSET 16
+#define SM_PBASEL_SIZE 3
+#define SM_PBADIV_OFFSET 23
+#define SM_PBADIV_SIZE 1
+#define SM_PBBSEL_OFFSET 24
+#define SM_PBBSEL_SIZE 3
+#define SM_PBBDIV_OFFSET 31
+#define SM_PBBDIV_SIZE 1
+
+/* Bitfields in PM_PLL0 */
+#define SM_PLLEN_OFFSET 0
+#define SM_PLLEN_SIZE 1
+#define SM_PLLOSC_OFFSET 1
+#define SM_PLLOSC_SIZE 1
+#define SM_PLLOPT_OFFSET 2
+#define SM_PLLOPT_SIZE 3
+#define SM_PLLDIV_OFFSET 8
+#define SM_PLLDIV_SIZE 8
+#define SM_PLLMUL_OFFSET 16
+#define SM_PLLMUL_SIZE 8
+#define SM_PLLCOUNT_OFFSET 24
+#define SM_PLLCOUNT_SIZE 6
+#define SM_PLLTEST_OFFSET 31
+#define SM_PLLTEST_SIZE 1
+
+/* Bitfields in PM_VCTRL */
+#define SM_VAUTO_OFFSET 0
+#define SM_VAUTO_SIZE 1
+#define SM_PM_VCTRL_VAL_OFFSET 8
+#define SM_PM_VCTRL_VAL_SIZE 7
+
+/* Bitfields in PM_VMREF */
+#define SM_REFSEL_OFFSET 0
+#define SM_REFSEL_SIZE 4
+
+/* Bitfields in PM_VMV */
+#define SM_PM_VMV_VAL_OFFSET 0
+#define SM_PM_VMV_VAL_SIZE 8
+
+/* Bitfields in PM_ICR */
+#define SM_LOCK0_OFFSET 0
+#define SM_LOCK0_SIZE 1
+#define SM_LOCK1_OFFSET 1
+#define SM_LOCK1_SIZE 1
+#define SM_WAKE_OFFSET 2
+#define SM_WAKE_SIZE 1
+#define SM_VOK_OFFSET 3
+#define SM_VOK_SIZE 1
+#define SM_VMRDY_OFFSET 4
+#define SM_VMRDY_SIZE 1
+#define SM_CKRDY_OFFSET 5
+#define SM_CKRDY_SIZE 1
+
+/* Bitfields in PM_GCCTRL */
+#define SM_OSCSEL_OFFSET 0
+#define SM_OSCSEL_SIZE 1
+#define SM_PLLSEL_OFFSET 1
+#define SM_PLLSEL_SIZE 1
+#define SM_CEN_OFFSET 2
+#define SM_CEN_SIZE 1
+#define SM_CPC_OFFSET 3
+#define SM_CPC_SIZE 1
+#define SM_DIVEN_OFFSET 4
+#define SM_DIVEN_SIZE 1
+#define SM_DIV_OFFSET 8
+#define SM_DIV_SIZE 8
+
+/* Bitfields in RTC_CTRL */
+#define SM_PCLR_OFFSET 1
+#define SM_PCLR_SIZE 1
+#define SM_TOPEN_OFFSET 2
+#define SM_TOPEN_SIZE 1
+#define SM_CLKEN_OFFSET 3
+#define SM_CLKEN_SIZE 1
+#define SM_PSEL_OFFSET 8
+#define SM_PSEL_SIZE 16
+
+/* Bitfields in RTC_VAL */
+#define SM_RTC_VAL_VAL_OFFSET 0
+#define SM_RTC_VAL_VAL_SIZE 31
+
+/* Bitfields in RTC_TOP */
+#define SM_RTC_TOP_VAL_OFFSET 0
+#define SM_RTC_TOP_VAL_SIZE 32
+
+/* Bitfields in RTC_ICR */
+#define SM_TOPI_OFFSET 0
+#define SM_TOPI_SIZE 1
+
+/* Bitfields in WDT_CTRL */
+#define SM_KEY_OFFSET 24
+#define SM_KEY_SIZE 8
+
+/* Bitfields in RC_RCAUSE */
+#define SM_POR_OFFSET 0
+#define SM_POR_SIZE 1
+#define SM_BOD_OFFSET 1
+#define SM_BOD_SIZE 1
+#define SM_EXT_OFFSET 2
+#define SM_EXT_SIZE 1
+#define SM_WDT_OFFSET 3
+#define SM_WDT_SIZE 1
+#define SM_NTAE_OFFSET 4
+#define SM_NTAE_SIZE 1
+#define SM_SERP_OFFSET 5
+#define SM_SERP_SIZE 1
+
+/* Bitfields in EIM_EDGE */
+#define SM_INT0_OFFSET 0
+#define SM_INT0_SIZE 1
+#define SM_INT1_OFFSET 1
+#define SM_INT1_SIZE 1
+#define SM_INT2_OFFSET 2
+#define SM_INT2_SIZE 1
+#define SM_INT3_OFFSET 3
+#define SM_INT3_SIZE 1
+
+/* Bitfields in EIM_LEVEL */
+
+/* Bitfields in EIM_TEST */
+#define SM_TESTEN_OFFSET 31
+#define SM_TESTEN_SIZE 1
+
+/* Bitfields in EIM_NMIC */
+#define SM_EN_OFFSET 0
+#define SM_EN_SIZE 1
+
+/* Bit manipulation macros */
+#define SM_BIT(name) \
+ (1 << SM_##name##_OFFSET)
+#define SM_BF(name,value) \
+ (((value) & ((1 << SM_##name##_SIZE) - 1)) \
+ << SM_##name##_OFFSET)
+#define SM_BFEXT(name,value) \
+ (((value) >> SM_##name##_OFFSET) \
+ & ((1 << SM_##name##_SIZE) - 1))
+#define SM_BFINS(name,value,old) \
+ (((old) & ~(((1 << SM_##name##_SIZE) - 1) \
+ << SM_##name##_OFFSET)) \
+ | SM_BF(name,value))
+
+/* Register access macros */
+#define sm_readl(reg) \
+ readl((void *)SM_BASE + SM_##reg)
+#define sm_writel(reg,value) \
+ writel((value), (void *)SM_BASE + SM_##reg)
+
+#endif /* __CPU_AT32AP_SM_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#include <asm/arch/cacheflush.h>
+
+void dcache_clean_range(volatile void *start, size_t size)
+{
+ unsigned long v, begin, end, linesz;
+
+ linesz = CONFIG_SYS_DCACHE_LINESZ;
+
+ /* You asked for it, you got it */
+ begin = (unsigned long)start & ~(linesz - 1);
+ end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+ for (v = begin; v < end; v += linesz)
+ dcache_clean_line((void *)v);
+
+ sync_write_buffer();
+}
+
+void dcache_invalidate_range(volatile void *start, size_t size)
+{
+ unsigned long v, begin, end, linesz;
+
+ linesz = CONFIG_SYS_DCACHE_LINESZ;
+
+ /* You asked for it, you got it */
+ begin = (unsigned long)start & ~(linesz - 1);
+ end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+ for (v = begin; v < end; v += linesz)
+ dcache_invalidate_line((void *)v);
+}
+
+void dcache_flush_range(volatile void *start, size_t size)
+{
+ unsigned long v, begin, end, linesz;
+
+ linesz = CONFIG_SYS_DCACHE_LINESZ;
+
+ /* You asked for it, you got it */
+ begin = (unsigned long)start & ~(linesz - 1);
+ end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+ for (v = begin; v < end; v += linesz)
+ dcache_flush_line((void *)v);
+
+ sync_write_buffer();
+}
+
+void icache_invalidate_range(volatile void *start, size_t size)
+{
+ unsigned long v, begin, end, linesz;
+
+ linesz = CONFIG_SYS_ICACHE_LINESZ;
+
+ /* You asked for it, you got it */
+ begin = (unsigned long)start & ~(linesz - 1);
+ end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+ for (v = begin; v < end; v += linesz)
+ icache_invalidate_line((void *)v);
+}
+
+/*
+ * This is called after loading something into memory. We need to
+ * make sure that everything that was loaded is actually written to
+ * RAM, and that the icache will look for it. Cleaning the dcache and
+ * invalidating the icache will do the trick.
+ */
+void flush_cache (unsigned long start_addr, unsigned long size)
+{
+ dcache_clean_range((void *)start_addr, size);
+ icache_invalidate_range((void *)start_addr, size);
+}
--- /dev/null
+#
+# Copyright (C) 2005-2006 Atmel Corporation
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+PLATFORM_RELFLAGS += -mcpu=ap7000
--- /dev/null
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <command.h>
+
+#include <asm/io.h>
+#include <asm/sections.h>
+#include <asm/sysreg.h>
+
+#include <asm/arch/clk.h>
+#include <asm/arch/memory-map.h>
+
+#include "hsmc3.h"
+
+/* Sanity checks */
+#if (CONFIG_SYS_CLKDIV_CPU > CONFIG_SYS_CLKDIV_HSB) \
+ || (CONFIG_SYS_CLKDIV_HSB > CONFIG_SYS_CLKDIV_PBA) \
+ || (CONFIG_SYS_CLKDIV_HSB > CONFIG_SYS_CLKDIV_PBB)
+# error Constraint fCPU >= fHSB >= fPB{A,B} violated
+#endif
+#if defined(CONFIG_PLL) && ((CONFIG_SYS_PLL0_MUL < 1) || (CONFIG_SYS_PLL0_DIV < 1))
+# error Invalid PLL multiplier and/or divider
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int cpu_init(void)
+{
+ extern void _evba(void);
+
+ gd->cpu_hz = CONFIG_SYS_OSC0_HZ;
+
+ /* TODO: Move somewhere else, but needs to be run before we
+ * increase the clock frequency. */
+ hsmc3_writel(MODE0, 0x00031103);
+ hsmc3_writel(CYCLE0, 0x000c000d);
+ hsmc3_writel(PULSE0, 0x0b0a0906);
+ hsmc3_writel(SETUP0, 0x00010002);
+
+ clk_init();
+
+ /* Update the CPU speed according to the PLL configuration */
+ gd->cpu_hz = get_cpu_clk_rate();
+
+ /* Set up the exception handler table and enable exceptions */
+ sysreg_write(EVBA, (unsigned long)&_evba);
+ asm volatile("csrf %0" : : "i"(SYSREG_EM_OFFSET));
+
+ return 0;
+}
+
+void prepare_to_boot(void)
+{
+ /* Flush both caches and the write buffer */
+ asm volatile("cache %0[4], 010\n\t"
+ "cache %0[0], 000\n\t"
+ "sync 0" : : "r"(0) : "memory");
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ /* This will reset the CPU core, caches, MMU and all internal busses */
+ __builtin_mtdr(8, 1 << 13); /* set DC:DBE */
+ __builtin_mtdr(8, 1 << 30); /* set DC:RES */
+
+ /* Flush the pipeline before we declare it a failure */
+ asm volatile("sub pc, pc, -4");
+
+ return -1;
+}
--- /dev/null
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+#include <asm/sysreg.h>
+#include <asm/ptrace.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const char * const cpu_modes[8] = {
+ "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1",
+ "Interrupt level 2", "Interrupt level 3", "Exception", "NMI"
+};
+
+static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
+{
+ unsigned long p;
+ int i;
+
+ printf("%s(0x%08lx to 0x%08lx)\n", str, bottom, top);
+
+ for (p = bottom & ~31; p < top; ) {
+ printf("%04lx: ", p & 0xffff);
+
+ for (i = 0; i < 8; i++, p += 4) {
+ unsigned int val;
+
+ if (p < bottom || p >= top)
+ printf(" ");
+ else {
+ val = *(unsigned long *)p;
+ printf("%08x ", val);
+ }
+ }
+ printf("\n");
+ }
+}
+
+void do_unknown_exception(unsigned int ecr, struct pt_regs *regs)
+{
+ unsigned int mode;
+
+ printf("\n *** Unhandled exception %u at PC=0x%08lx\n", ecr, regs->pc);
+
+ switch (ecr) {
+ case ECR_BUS_ERROR_WRITE:
+ case ECR_BUS_ERROR_READ:
+ printf("Bus error at address 0x%08lx\n",
+ sysreg_read(BEAR));
+ break;
+ case ECR_TLB_MULTIPLE:
+ case ECR_ADDR_ALIGN_X:
+ case ECR_PROTECTION_X:
+ case ECR_ADDR_ALIGN_R:
+ case ECR_ADDR_ALIGN_W:
+ case ECR_PROTECTION_R:
+ case ECR_PROTECTION_W:
+ case ECR_DTLB_MODIFIED:
+ case ECR_TLB_MISS_X:
+ case ECR_TLB_MISS_R:
+ case ECR_TLB_MISS_W:
+ printf("MMU exception at address 0x%08lx\n",
+ sysreg_read(TLBEAR));
+ break;
+ }
+
+ printf(" pc: %08lx lr: %08lx sp: %08lx r12: %08lx\n",
+ regs->pc, regs->lr, regs->sp, regs->r12);
+ printf(" r11: %08lx r10: %08lx r9: %08lx r8: %08lx\n",
+ regs->r11, regs->r10, regs->r9, regs->r8);
+ printf(" r7: %08lx r6: %08lx r5: %08lx r4: %08lx\n",
+ regs->r7, regs->r6, regs->r5, regs->r4);
+ printf(" r3: %08lx r2: %08lx r1: %08lx r0: %08lx\n",
+ regs->r3, regs->r2, regs->r1, regs->r0);
+ printf("Flags: %c%c%c%c%c\n",
+ regs->sr & SR_Q ? 'Q' : 'q',
+ regs->sr & SR_V ? 'V' : 'v',
+ regs->sr & SR_N ? 'N' : 'n',
+ regs->sr & SR_Z ? 'Z' : 'z',
+ regs->sr & SR_C ? 'C' : 'c');
+ printf("Mode bits: %c%c%c%c%c%c%c%c%c\n",
+ regs->sr & SR_H ? 'H' : 'h',
+ regs->sr & SR_R ? 'R' : 'r',
+ regs->sr & SR_J ? 'J' : 'j',
+ regs->sr & SR_EM ? 'E' : 'e',
+ regs->sr & SR_I3M ? '3' : '.',
+ regs->sr & SR_I2M ? '2' : '.',
+ regs->sr & SR_I1M ? '1' : '.',
+ regs->sr & SR_I0M ? '0' : '.',
+ regs->sr & SR_GM ? 'G' : 'g');
+ mode = (regs->sr >> SYSREG_M0_OFFSET) & 7;
+ printf("CPU Mode: %s\n", cpu_modes[mode]);
+
+ /* Avoid exception loops */
+ if (regs->sp < (gd->stack_end - CONFIG_STACKSIZE)
+ || regs->sp >= gd->stack_end)
+ printf("\nStack pointer seems bogus, won't do stack dump\n");
+ else
+ dump_mem("\nStack: ", regs->sp, gd->stack_end);
+
+ panic("Unhandled exception\n");
+}
--- /dev/null
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+#include <asm/io.h>
+#include <asm/sdram.h>
+
+#include <asm/arch/clk.h>
+#include <asm/arch/memory-map.h>
+
+#include "hsdramc1.h"
+
+unsigned long sdram_init(void *sdram_base, const struct sdram_config *config)
+{
+ unsigned long sdram_size;
+ uint32_t cfgreg;
+ unsigned int i;
+
+ cfgreg = (HSDRAMC1_BF(NC, config->col_bits - 8)
+ | HSDRAMC1_BF(NR, config->row_bits - 11)
+ | HSDRAMC1_BF(NB, config->bank_bits - 1)
+ | HSDRAMC1_BF(CAS, config->cas)
+ | HSDRAMC1_BF(TWR, config->twr)
+ | HSDRAMC1_BF(TRC, config->trc)
+ | HSDRAMC1_BF(TRP, config->trp)
+ | HSDRAMC1_BF(TRCD, config->trcd)
+ | HSDRAMC1_BF(TRAS, config->tras)
+ | HSDRAMC1_BF(TXSR, config->txsr));
+
+ if (config->data_bits == SDRAM_DATA_16BIT)
+ cfgreg |= HSDRAMC1_BIT(DBW);
+
+ hsdramc1_writel(CR, cfgreg);
+
+ /* Send a NOP to turn on the clock (necessary on some chips) */
+ hsdramc1_writel(MR, HSDRAMC1_MODE_NOP);
+ hsdramc1_readl(MR);
+ writel(0, sdram_base);
+
+ /*
+ * Initialization sequence for SDRAM, from the data sheet:
+ *
+ * 1. A minimum pause of 200 us is provided to precede any
+ * signal toggle.
+ */
+ udelay(200);
+
+ /*
+ * 2. A Precharge All command is issued to the SDRAM
+ */
+ hsdramc1_writel(MR, HSDRAMC1_MODE_BANKS_PRECHARGE);
+ hsdramc1_readl(MR);
+ writel(0, sdram_base);
+
+ /*
+ * 3. Eight auto-refresh (CBR) cycles are provided
+ */
+ hsdramc1_writel(MR, HSDRAMC1_MODE_AUTO_REFRESH);
+ hsdramc1_readl(MR);
+ for (i = 0; i < 8; i++)
+ writel(0, sdram_base);
+
+ /*
+ * 4. A mode register set (MRS) cycle is issued to program
+ * SDRAM parameters, in particular CAS latency and burst
+ * length.
+ *
+ * The address will be chosen by the SDRAMC automatically; we
+ * just have to make sure BA[1:0] are set to 0.
+ */
+ hsdramc1_writel(MR, HSDRAMC1_MODE_LOAD_MODE);
+ hsdramc1_readl(MR);
+ writel(0, sdram_base);
+
+ /*
+ * 5. The application must go into Normal Mode, setting Mode
+ * to 0 in the Mode Register and performing a write access
+ * at any location in the SDRAM.
+ */
+ hsdramc1_writel(MR, HSDRAMC1_MODE_NORMAL);
+ hsdramc1_readl(MR);
+ writel(0, sdram_base);
+
+ /*
+ * 6. Write refresh rate into SDRAMC refresh timer count
+ * register (refresh rate = timing between refresh cycles).
+ */
+ hsdramc1_writel(TR, config->refresh_period);
+
+ if (config->data_bits == SDRAM_DATA_16BIT)
+ sdram_size = 1 << (config->row_bits + config->col_bits
+ + config->bank_bits + 1);
+ else
+ sdram_size = 1 << (config->row_bits + config->col_bits
+ + config->bank_bits + 2);
+
+ return sdram_size;
+}
--- /dev/null
+/*
+ * Register definitions for SDRAM Controller
+ */
+#ifndef __ASM_AVR32_HSDRAMC1_H__
+#define __ASM_AVR32_HSDRAMC1_H__
+
+/* HSDRAMC1 register offsets */
+#define HSDRAMC1_MR 0x0000
+#define HSDRAMC1_TR 0x0004
+#define HSDRAMC1_CR 0x0008
+#define HSDRAMC1_HSR 0x000c
+#define HSDRAMC1_LPR 0x0010
+#define HSDRAMC1_IER 0x0014
+#define HSDRAMC1_IDR 0x0018
+#define HSDRAMC1_IMR 0x001c
+#define HSDRAMC1_ISR 0x0020
+#define HSDRAMC1_MDR 0x0024
+#define HSDRAMC1_VERSION 0x00fc
+
+/* Bitfields in MR */
+#define HSDRAMC1_MODE_OFFSET 0
+#define HSDRAMC1_MODE_SIZE 3
+
+/* Bitfields in TR */
+#define HSDRAMC1_COUNT_OFFSET 0
+#define HSDRAMC1_COUNT_SIZE 12
+
+/* Bitfields in CR */
+#define HSDRAMC1_NC_OFFSET 0
+#define HSDRAMC1_NC_SIZE 2
+#define HSDRAMC1_NR_OFFSET 2
+#define HSDRAMC1_NR_SIZE 2
+#define HSDRAMC1_NB_OFFSET 4
+#define HSDRAMC1_NB_SIZE 1
+#define HSDRAMC1_CAS_OFFSET 5
+#define HSDRAMC1_CAS_SIZE 2
+#define HSDRAMC1_DBW_OFFSET 7
+#define HSDRAMC1_DBW_SIZE 1
+#define HSDRAMC1_TWR_OFFSET 8
+#define HSDRAMC1_TWR_SIZE 4
+#define HSDRAMC1_TRC_OFFSET 12
+#define HSDRAMC1_TRC_SIZE 4
+#define HSDRAMC1_TRP_OFFSET 16
+#define HSDRAMC1_TRP_SIZE 4
+#define HSDRAMC1_TRCD_OFFSET 20
+#define HSDRAMC1_TRCD_SIZE 4
+#define HSDRAMC1_TRAS_OFFSET 24
+#define HSDRAMC1_TRAS_SIZE 4
+#define HSDRAMC1_TXSR_OFFSET 28
+#define HSDRAMC1_TXSR_SIZE 4
+
+/* Bitfields in HSR */
+#define HSDRAMC1_DA_OFFSET 0
+#define HSDRAMC1_DA_SIZE 1
+
+/* Bitfields in LPR */
+#define HSDRAMC1_LPCB_OFFSET 0
+#define HSDRAMC1_LPCB_SIZE 2
+#define HSDRAMC1_PASR_OFFSET 4
+#define HSDRAMC1_PASR_SIZE 3
+#define HSDRAMC1_TCSR_OFFSET 8
+#define HSDRAMC1_TCSR_SIZE 2
+#define HSDRAMC1_DS_OFFSET 10
+#define HSDRAMC1_DS_SIZE 2
+#define HSDRAMC1_TIMEOUT_OFFSET 12
+#define HSDRAMC1_TIMEOUT_SIZE 2
+
+/* Bitfields in IDR */
+#define HSDRAMC1_RES_OFFSET 0
+#define HSDRAMC1_RES_SIZE 1
+
+/* Bitfields in MDR */
+#define HSDRAMC1_MD_OFFSET 0
+#define HSDRAMC1_MD_SIZE 2
+
+/* Bitfields in VERSION */
+#define HSDRAMC1_VERSION_OFFSET 0
+#define HSDRAMC1_VERSION_SIZE 12
+#define HSDRAMC1_MFN_OFFSET 16
+#define HSDRAMC1_MFN_SIZE 3
+
+/* Constants for MODE */
+#define HSDRAMC1_MODE_NORMAL 0
+#define HSDRAMC1_MODE_NOP 1
+#define HSDRAMC1_MODE_BANKS_PRECHARGE 2
+#define HSDRAMC1_MODE_LOAD_MODE 3
+#define HSDRAMC1_MODE_AUTO_REFRESH 4
+#define HSDRAMC1_MODE_EXT_LOAD_MODE 5
+#define HSDRAMC1_MODE_POWER_DOWN 6
+
+/* Constants for NC */
+#define HSDRAMC1_NC_8_COLUMN_BITS 0
+#define HSDRAMC1_NC_9_COLUMN_BITS 1
+#define HSDRAMC1_NC_10_COLUMN_BITS 2
+#define HSDRAMC1_NC_11_COLUMN_BITS 3
+
+/* Constants for NR */
+#define HSDRAMC1_NR_11_ROW_BITS 0
+#define HSDRAMC1_NR_12_ROW_BITS 1
+#define HSDRAMC1_NR_13_ROW_BITS 2
+
+/* Constants for NB */
+#define HSDRAMC1_NB_TWO_BANKS 0
+#define HSDRAMC1_NB_FOUR_BANKS 1
+
+/* Constants for CAS */
+#define HSDRAMC1_CAS_ONE_CYCLE 1
+#define HSDRAMC1_CAS_TWO_CYCLES 2
+
+/* Constants for DBW */
+#define HSDRAMC1_DBW_32_BITS 0
+#define HSDRAMC1_DBW_16_BITS 1
+
+/* Constants for TIMEOUT */
+#define HSDRAMC1_TIMEOUT_AFTER_END 0
+#define HSDRAMC1_TIMEOUT_64_CYC_AFTER_END 1
+#define HSDRAMC1_TIMEOUT_128_CYC_AFTER_END 2
+
+/* Constants for MD */
+#define HSDRAMC1_MD_SDRAM 0
+#define HSDRAMC1_MD_LOW_POWER_SDRAM 1
+
+/* Bit manipulation macros */
+#define HSDRAMC1_BIT(name) \
+ (1 << HSDRAMC1_##name##_OFFSET)
+#define HSDRAMC1_BF(name,value) \
+ (((value) & ((1 << HSDRAMC1_##name##_SIZE) - 1)) \
+ << HSDRAMC1_##name##_OFFSET)
+#define HSDRAMC1_BFEXT(name,value) \
+ (((value) >> HSDRAMC1_##name##_OFFSET) \
+ & ((1 << HSDRAMC1_##name##_SIZE) - 1))
+#define HSDRAMC1_BFINS(name,value,old) \
+ (((old) & ~(((1 << HSDRAMC1_##name##_SIZE) - 1) \
+ << HSDRAMC1_##name##_OFFSET)) \
+ | HSDRAMC1_BF(name,value))
+
+/* Register access macros */
+#define hsdramc1_readl(reg) \
+ readl((void *)HSDRAMC_BASE + HSDRAMC1_##reg)
+#define hsdramc1_writel(reg,value) \
+ writel((value), (void *)HSDRAMC_BASE + HSDRAMC1_##reg)
+
+#endif /* __ASM_AVR32_HSDRAMC1_H__ */
--- /dev/null
+/*
+ * Register definitions for Static Memory Controller
+ */
+#ifndef __CPU_AT32AP_HSMC3_H__
+#define __CPU_AT32AP_HSMC3_H__
+
+/* HSMC3 register offsets */
+#define HSMC3_SETUP0 0x0000
+#define HSMC3_PULSE0 0x0004
+#define HSMC3_CYCLE0 0x0008
+#define HSMC3_MODE0 0x000c
+#define HSMC3_SETUP1 0x0010
+#define HSMC3_PULSE1 0x0014
+#define HSMC3_CYCLE1 0x0018
+#define HSMC3_MODE1 0x001c
+#define HSMC3_SETUP2 0x0020
+#define HSMC3_PULSE2 0x0024
+#define HSMC3_CYCLE2 0x0028
+#define HSMC3_MODE2 0x002c
+#define HSMC3_SETUP3 0x0030
+#define HSMC3_PULSE3 0x0034
+#define HSMC3_CYCLE3 0x0038
+#define HSMC3_MODE3 0x003c
+#define HSMC3_SETUP4 0x0040
+#define HSMC3_PULSE4 0x0044
+#define HSMC3_CYCLE4 0x0048
+#define HSMC3_MODE4 0x004c
+#define HSMC3_SETUP5 0x0050
+#define HSMC3_PULSE5 0x0054
+#define HSMC3_CYCLE5 0x0058
+#define HSMC3_MODE5 0x005c
+
+/* Bitfields in SETUP0 */
+#define HSMC3_NWE_SETUP_OFFSET 0
+#define HSMC3_NWE_SETUP_SIZE 6
+#define HSMC3_NCS_WR_SETUP_OFFSET 8
+#define HSMC3_NCS_WR_SETUP_SIZE 6
+#define HSMC3_NRD_SETUP_OFFSET 16
+#define HSMC3_NRD_SETUP_SIZE 6
+#define HSMC3_NCS_RD_SETUP_OFFSET 24
+#define HSMC3_NCS_RD_SETUP_SIZE 6
+
+/* Bitfields in PULSE0 */
+#define HSMC3_NWE_PULSE_OFFSET 0
+#define HSMC3_NWE_PULSE_SIZE 7
+#define HSMC3_NCS_WR_PULSE_OFFSET 8
+#define HSMC3_NCS_WR_PULSE_SIZE 7
+#define HSMC3_NRD_PULSE_OFFSET 16
+#define HSMC3_NRD_PULSE_SIZE 7
+#define HSMC3_NCS_RD_PULSE_OFFSET 24
+#define HSMC3_NCS_RD_PULSE_SIZE 7
+
+/* Bitfields in CYCLE0 */
+#define HSMC3_NWE_CYCLE_OFFSET 0
+#define HSMC3_NWE_CYCLE_SIZE 9
+#define HSMC3_NRD_CYCLE_OFFSET 16
+#define HSMC3_NRD_CYCLE_SIZE 9
+
+/* Bitfields in MODE0 */
+#define HSMC3_READ_MODE_OFFSET 0
+#define HSMC3_READ_MODE_SIZE 1
+#define HSMC3_WRITE_MODE_OFFSET 1
+#define HSMC3_WRITE_MODE_SIZE 1
+#define HSMC3_EXNW_MODE_OFFSET 4
+#define HSMC3_EXNW_MODE_SIZE 2
+#define HSMC3_BAT_OFFSET 8
+#define HSMC3_BAT_SIZE 1
+#define HSMC3_DBW_OFFSET 12
+#define HSMC3_DBW_SIZE 2
+#define HSMC3_TDF_CYCLES_OFFSET 16
+#define HSMC3_TDF_CYCLES_SIZE 4
+#define HSMC3_TDF_MODE_OFFSET 20
+#define HSMC3_TDF_MODE_SIZE 1
+#define HSMC3_PMEN_OFFSET 24
+#define HSMC3_PMEN_SIZE 1
+#define HSMC3_PS_OFFSET 28
+#define HSMC3_PS_SIZE 2
+
+/* Bitfields in MODE1 */
+#define HSMC3_PD_OFFSET 28
+#define HSMC3_PD_SIZE 2
+
+/* Constants for READ_MODE */
+#define HSMC3_READ_MODE_NCS_CONTROLLED 0
+#define HSMC3_READ_MODE_NRD_CONTROLLED 1
+
+/* Constants for WRITE_MODE */
+#define HSMC3_WRITE_MODE_NCS_CONTROLLED 0
+#define HSMC3_WRITE_MODE_NWE_CONTROLLED 1
+
+/* Constants for EXNW_MODE */
+#define HSMC3_EXNW_MODE_DISABLED 0
+#define HSMC3_EXNW_MODE_RESERVED 1
+#define HSMC3_EXNW_MODE_FROZEN 2
+#define HSMC3_EXNW_MODE_READY 3
+
+/* Constants for BAT */
+#define HSMC3_BAT_BYTE_SELECT 0
+#define HSMC3_BAT_BYTE_WRITE 1
+
+/* Constants for DBW */
+#define HSMC3_DBW_8_BITS 0
+#define HSMC3_DBW_16_BITS 1
+#define HSMC3_DBW_32_BITS 2
+
+/* Bit manipulation macros */
+#define HSMC3_BIT(name) \
+ (1 << HSMC3_##name##_OFFSET)
+#define HSMC3_BF(name,value) \
+ (((value) & ((1 << HSMC3_##name##_SIZE) - 1)) \
+ << HSMC3_##name##_OFFSET)
+#define HSMC3_BFEXT(name,value) \
+ (((value) >> HSMC3_##name##_OFFSET) \
+ & ((1 << HSMC3_##name##_SIZE) - 1))
+#define HSMC3_BFINS(name,value,old)\
+ (((old) & ~(((1 << HSMC3_##name##_SIZE) - 1) \
+ << HSMC3_##name##_OFFSET)) \
+ | HSMC3_BF(name,value))
+
+/* Register access macros */
+#define hsmc3_readl(reg) \
+ readl((void *)HSMC_BASE + HSMC3_##reg)
+#define hsmc3_writel(reg,value) \
+ writel((value), (void *)HSMC_BASE + HSMC3_##reg)
+
+#endif /* __CPU_AT32AP_HSMC3_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <div64.h>
+
+#include <asm/errno.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/sysreg.h>
+
+#include <asm/arch/memory-map.h>
+
+#define HANDLER_MASK 0x00ffffff
+#define INTLEV_SHIFT 30
+#define INTLEV_MASK 0x00000003
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Incremented whenever COUNT reaches 0xffffffff by timer_interrupt_handler */
+volatile unsigned long timer_overflow;
+
+/*
+ * Instead of dividing by get_tbclk(), multiply by this constant and
+ * right-shift the result by 32 bits.
+ */
+static unsigned long tb_factor;
+
+unsigned long get_tbclk(void)
+{
+ return gd->cpu_hz;
+}
+
+unsigned long long get_ticks(void)
+{
+ unsigned long lo, hi_now, hi_prev;
+
+ do {
+ hi_prev = timer_overflow;
+ lo = sysreg_read(COUNT);
+ hi_now = timer_overflow;
+ } while (hi_prev != hi_now);
+
+ return ((unsigned long long)hi_now << 32) | lo;
+}
+
+void reset_timer(void)
+{
+ sysreg_write(COUNT, 0);
+ cpu_sync_pipeline(); /* process any pending interrupts */
+ timer_overflow = 0;
+}
+
+unsigned long get_timer(unsigned long base)
+{
+ u64 now = get_ticks();
+
+ now *= tb_factor;
+ return (unsigned long)(now >> 32) - base;
+}
+
+void set_timer(unsigned long t)
+{
+ unsigned long long ticks = t;
+ unsigned long lo, hi, hi_new;
+
+ ticks = (ticks * get_tbclk()) / CONFIG_SYS_HZ;
+ hi = ticks >> 32;
+ lo = ticks & 0xffffffffUL;
+
+ do {
+ timer_overflow = hi;
+ sysreg_write(COUNT, lo);
+ hi_new = timer_overflow;
+ } while (hi_new != hi);
+}
+
+/*
+ * For short delays only. It will overflow after a few seconds.
+ */
+void __udelay(unsigned long usec)
+{
+ unsigned long cycles;
+ unsigned long base;
+ unsigned long now;
+
+ base = sysreg_read(COUNT);
+ cycles = ((usec * (get_tbclk() / 10000)) + 50) / 100;
+
+ do {
+ now = sysreg_read(COUNT);
+ } while ((now - base) < cycles);
+}
+
+static int set_interrupt_handler(unsigned int nr, void (*handler)(void),
+ unsigned int priority)
+{
+ extern void _evba(void);
+ unsigned long intpr;
+ unsigned long handler_addr = (unsigned long)handler;
+
+ handler_addr -= (unsigned long)&_evba;
+
+ if ((handler_addr & HANDLER_MASK) != handler_addr
+ || (priority & INTLEV_MASK) != priority)
+ return -EINVAL;
+
+ intpr = (handler_addr & HANDLER_MASK);
+ intpr |= (priority & INTLEV_MASK) << INTLEV_SHIFT;
+ writel(intpr, (void *)INTC_BASE + 4 * nr);
+
+ return 0;
+}
+
+void timer_init(void)
+{
+ extern void timer_interrupt_handler(void);
+ u64 tmp;
+
+ sysreg_write(COUNT, 0);
+
+ tmp = (u64)CONFIG_SYS_HZ << 32;
+ tmp += gd->cpu_hz / 2;
+ do_div(tmp, gd->cpu_hz);
+ tb_factor = (u32)tmp;
+
+ if (set_interrupt_handler(0, &timer_interrupt_handler, 3))
+ return;
+
+ /* For all practical purposes, this gives us an overflow interrupt */
+ sysreg_write(COMPARE, 0xffffffff);
+}
--- /dev/null
+/*
+ * Register definitions for Parallel Input/Output Controller
+ */
+#ifndef __CPU_AT32AP_PIO2_H__
+#define __CPU_AT32AP_PIO2_H__
+
+/* PIO2 register offsets */
+#define PIO2_PER 0x0000
+#define PIO2_PDR 0x0004
+#define PIO2_PSR 0x0008
+#define PIO2_OER 0x0010
+#define PIO2_ODR 0x0014
+#define PIO2_OSR 0x0018
+#define PIO2_IFER 0x0020
+#define PIO2_IFDR 0x0024
+#define PIO2_ISFR 0x0028
+#define PIO2_SODR 0x0030
+#define PIO2_CODR 0x0034
+#define PIO2_ODSR 0x0038
+#define PIO2_PDSR 0x003c
+#define PIO2_IER 0x0040
+#define PIO2_IDR 0x0044
+#define PIO2_IMR 0x0048
+#define PIO2_ISR 0x004c
+#define PIO2_MDER 0x0050
+#define PIO2_MDDR 0x0054
+#define PIO2_MDSR 0x0058
+#define PIO2_PUDR 0x0060
+#define PIO2_PUER 0x0064
+#define PIO2_PUSR 0x0068
+#define PIO2_ASR 0x0070
+#define PIO2_BSR 0x0074
+#define PIO2_ABSR 0x0078
+#define PIO2_OWER 0x00a0
+#define PIO2_OWDR 0x00a4
+#define PIO2_OWSR 0x00a8
+
+/* Register access macros */
+#define pio2_readl(base,reg) \
+ readl((void *)base + PIO2_##reg)
+#define pio2_writel(base,reg,value) \
+ writel((value), (void *)base + PIO2_##reg)
+
+#endif /* __CPU_AT32AP_PIO2_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2008 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+#include <asm/io.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/gpio.h>
+
+void portmux_select_peripheral(void *port, unsigned long pin_mask,
+ enum portmux_function func, unsigned long flags)
+{
+ /* Both pull-up and pull-down set means buskeeper */
+ if (flags & PORTMUX_PULL_DOWN)
+ gpio_writel(port, PDERS, pin_mask);
+ else
+ gpio_writel(port, PDERC, pin_mask);
+ if (flags & PORTMUX_PULL_UP)
+ gpio_writel(port, PUERS, pin_mask);
+ else
+ gpio_writel(port, PUERC, pin_mask);
+
+ /* Select drive strength */
+ if (flags & PORTMUX_DRIVE_LOW)
+ gpio_writel(port, ODCR0S, pin_mask);
+ else
+ gpio_writel(port, ODCR0C, pin_mask);
+ if (flags & PORTMUX_DRIVE_HIGH)
+ gpio_writel(port, ODCR1S, pin_mask);
+ else
+ gpio_writel(port, ODCR1C, pin_mask);
+
+ /* Select function */
+ if (func & PORTMUX_FUNC_B)
+ gpio_writel(port, PMR0S, pin_mask);
+ else
+ gpio_writel(port, PMR0C, pin_mask);
+ if (func & PORTMUX_FUNC_C)
+ gpio_writel(port, PMR1S, pin_mask);
+ else
+ gpio_writel(port, PMR1C, pin_mask);
+
+ /* Disable GPIO (i.e. enable peripheral) */
+ gpio_writel(port, GPERC, pin_mask);
+}
+
+void portmux_select_gpio(void *port, unsigned long pin_mask,
+ unsigned long flags)
+{
+ /* Both pull-up and pull-down set means buskeeper */
+ if (flags & PORTMUX_PULL_DOWN)
+ gpio_writel(port, PDERS, pin_mask);
+ else
+ gpio_writel(port, PDERC, pin_mask);
+ if (flags & PORTMUX_PULL_UP)
+ gpio_writel(port, PUERS, pin_mask);
+ else
+ gpio_writel(port, PUERC, pin_mask);
+
+ /* Enable open-drain mode if requested */
+ if (flags & PORTMUX_OPEN_DRAIN)
+ gpio_writel(port, ODMERS, pin_mask);
+ else
+ gpio_writel(port, ODMERC, pin_mask);
+
+ /* Select drive strength */
+ if (flags & PORTMUX_DRIVE_LOW)
+ gpio_writel(port, ODCR0S, pin_mask);
+ else
+ gpio_writel(port, ODCR0C, pin_mask);
+ if (flags & PORTMUX_DRIVE_HIGH)
+ gpio_writel(port, ODCR1S, pin_mask);
+ else
+ gpio_writel(port, ODCR1C, pin_mask);
+
+ /* Select direction and initial pin state */
+ if (flags & PORTMUX_DIR_OUTPUT) {
+ if (flags & PORTMUX_INIT_HIGH)
+ gpio_writel(port, OVRS, pin_mask);
+ else
+ gpio_writel(port, OVRC, pin_mask);
+ gpio_writel(port, ODERS, pin_mask);
+ } else {
+ gpio_writel(port, ODERC, pin_mask);
+ }
+
+ /* Enable GPIO */
+ gpio_writel(port, GPERS, pin_mask);
+}
--- /dev/null
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+#include <asm/io.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/gpio.h>
+
+void portmux_select_peripheral(void *port, unsigned long pin_mask,
+ enum portmux_function func, unsigned long flags)
+{
+ if (flags & PORTMUX_PULL_UP)
+ pio_writel(port, PUER, pin_mask);
+ else
+ pio_writel(port, PUDR, pin_mask);
+
+ switch (func) {
+ case PORTMUX_FUNC_A:
+ pio_writel(port, ASR, pin_mask);
+ break;
+ case PORTMUX_FUNC_B:
+ pio_writel(port, BSR, pin_mask);
+ break;
+ }
+
+ pio_writel(port, PDR, pin_mask);
+}
+
+void portmux_select_gpio(void *port, unsigned long pin_mask,
+ unsigned long flags)
+{
+ if (flags & PORTMUX_PULL_UP)
+ pio_writel(port, PUER, pin_mask);
+ else
+ pio_writel(port, PUDR, pin_mask);
+
+ if (flags & PORTMUX_OPEN_DRAIN)
+ pio_writel(port, MDER, pin_mask);
+ else
+ pio_writel(port, MDDR, pin_mask);
+
+ if (flags & PORTMUX_DIR_OUTPUT) {
+ if (flags & PORTMUX_INIT_HIGH)
+ pio_writel(port, SODR, pin_mask);
+ else
+ pio_writel(port, CODR, pin_mask);
+ pio_writel(port, OER, pin_mask);
+ } else {
+ pio_writel(port, ODR, pin_mask);
+ }
+
+ pio_writel(port, PER, pin_mask);
+}
+
+void pio_set_output_value(unsigned int pin, int value)
+{
+ void *port = pio_pin_to_port(pin);
+
+ if (!port)
+ panic("Invalid GPIO pin %u\n", pin);
+
+ __pio_set_output_value(port, pin & 0x1f, value);
+}
+
+int pio_get_input_value(unsigned int pin)
+{
+ void *port = pio_pin_to_port(pin);
+
+ if (!port)
+ panic("Invalid GPIO pin %u\n", pin);
+
+ return __pio_get_input_value(port, pin & 0x1f);
+}
--- /dev/null
+/*
+ * Copyright (C) 2005-2008 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <config.h>
+#include <asm/ptrace.h>
+#include <asm/sysreg.h>
+
+#define SYSREG_MMUCR_I_OFFSET 2
+#define SYSREG_MMUCR_S_OFFSET 4
+
+#define SR_INIT (SYSREG_BIT(GM) | SYSREG_BIT(EM) | SYSREG_BIT(M0))
+#define CPUCR_INIT (SYSREG_BIT(BI) | SYSREG_BIT(BE) \
+ | SYSREG_BIT(FE) | SYSREG_BIT(RE) \
+ | SYSREG_BIT(IBE) | SYSREG_BIT(IEE))
+
+ /*
+ * To save some space, we use the same entry point for
+ * exceptions and reset. This avoids lots of alignment padding
+ * since the reset vector is always suitably aligned.
+ */
+ .section .exception.text, "ax", @progbits
+ .global _start
+ .global _evba
+ .type _start, @function
+ .type _evba, @function
+_start:
+ .size _start, 0
+_evba:
+ .org 0x00
+ rjmp unknown_exception /* Unrecoverable exception */
+ .org 0x04
+ rjmp unknown_exception /* TLB multiple hit */
+ .org 0x08
+ rjmp unknown_exception /* Bus error data fetch */
+ .org 0x0c
+ rjmp unknown_exception /* Bus error instruction fetch */
+ .org 0x10
+ rjmp unknown_exception /* NMI */
+ .org 0x14
+ rjmp unknown_exception /* Instruction address */
+ .org 0x18
+ rjmp unknown_exception /* ITLB protection */
+ .org 0x1c
+ rjmp unknown_exception /* Breakpoint */
+ .org 0x20
+ rjmp unknown_exception /* Illegal opcode */
+ .org 0x24
+ rjmp unknown_exception /* Unimplemented instruction */
+ .org 0x28
+ rjmp unknown_exception /* Privilege violation */
+ .org 0x2c
+ rjmp unknown_exception /* Floating-point */
+ .org 0x30
+ rjmp unknown_exception /* Coprocessor absent */
+ .org 0x34
+ rjmp unknown_exception /* Data Address (read) */
+ .org 0x38
+ rjmp unknown_exception /* Data Address (write) */
+ .org 0x3c
+ rjmp unknown_exception /* DTLB Protection (read) */
+ .org 0x40
+ rjmp unknown_exception /* DTLB Protection (write) */
+ .org 0x44
+ rjmp unknown_exception /* DTLB Modified */
+
+ .org 0x50
+ rjmp unknown_exception /* ITLB Miss */
+ .org 0x60
+ rjmp unknown_exception /* DTLB Miss (read) */
+ .org 0x70
+ rjmp unknown_exception /* DTLB Miss (write) */
+
+ .size _evba, . - _evba
+
+ .align 2
+ .type unknown_exception, @function
+unknown_exception:
+ /* Figure out whether we're handling an exception (Exception
+ * mode) or just booting (Supervisor mode). */
+ csrfcz SYSREG_M1_OFFSET
+ brcc at32ap_cpu_bootstrap
+
+ /* This is an exception. Complain. */
+ pushm r0-r12
+ sub r8, sp, REG_R12 - REG_R0 - 4
+ mov r9, lr
+ mfsr r10, SYSREG_RAR_EX
+ mfsr r11, SYSREG_RSR_EX
+ pushm r8-r11
+ mfsr r12, SYSREG_ECR
+ mov r11, sp
+ rcall do_unknown_exception
+1: rjmp 1b
+
+ /* The COUNT/COMPARE timer interrupt handler */
+ .global timer_interrupt_handler
+ .type timer_interrupt_handler,@function
+ .align 2
+timer_interrupt_handler:
+ /*
+ * Increment timer_overflow and re-write COMPARE with 0xffffffff.
+ *
+ * We're running at interrupt level 3, so we don't need to save
+ * r8-r12 or lr to the stack.
+ */
+ lda.w r8, timer_overflow
+ ld.w r9, r8[0]
+ mov r10, -1
+ mtsr SYSREG_COMPARE, r10
+ sub r9, -1
+ st.w r8[0], r9
+ rete
+
+ /*
+ * CPU bootstrap after reset is handled here. SoC code may
+ * override this in case they need to initialize oscillators,
+ * etc.
+ */
+ .section .text.at32ap_cpu_bootstrap, "ax", @progbits
+ .global at32ap_cpu_bootstrap
+ .weak at32ap_cpu_bootstrap
+ .type at32ap_cpu_bootstrap, @function
+ .align 2
+at32ap_cpu_bootstrap:
+ /* Reset the Status Register */
+ mov r0, lo(SR_INIT)
+ orh r0, hi(SR_INIT)
+ mtsr SYSREG_SR, r0
+
+ /* Reset CPUCR and invalidate the BTB */
+ mov r2, CPUCR_INIT
+ mtsr SYSREG_CPUCR, r2
+
+ /* Flush the caches */
+ mov r1, 0
+ cache r1[4], 8
+ cache r1[0], 0
+ sync 0
+
+ /* Reset the MMU to default settings */
+ mov r0, SYSREG_BIT(MMUCR_S) | SYSREG_BIT(MMUCR_I)
+ mtsr SYSREG_MMUCR, r0
+
+ /* Internal RAM should not need any initialization. We might
+ have to initialize external RAM here if the part doesn't
+ have internal RAM (or we may use the data cache) */
+
+ /* Jump to cacheable segment */
+ lddpc pc, 1f
+
+ .align 2
+1: .long at32ap_low_level_init
+ .size _start, . - _start
+
+ /* Common CPU bootstrap code after oscillator/cache/etc. init */
+ .section .text.avr32ap_low_level_init, "ax", @progbits
+ .global at32ap_low_level_init
+ .type at32ap_low_level_init, @function
+ .align 2
+at32ap_low_level_init:
+ lddpc sp, sp_init
+
+ /* Initialize the GOT pointer */
+ lddpc r6, got_init
+3: rsub r6, pc
+
+ /* Let's go */
+ rjmp board_init_f
+
+ .align 2
+ .type sp_init,@object
+sp_init:
+ .long CONFIG_SYS_INIT_SP_ADDR
+got_init:
+ .long 3b - _GLOBAL_OFFSET_TABLE_
+
+ /*
+ * void relocate_code(new_sp, new_gd, monitor_addr)
+ *
+ * Relocate the u-boot image into RAM and continue from there.
+ * Does not return.
+ */
+ .section .text.relocate_code,"ax",@progbits
+ .global relocate_code
+ .type relocate_code,@function
+relocate_code:
+ mov sp, r12 /* use new stack */
+ mov r12, r11 /* save new_gd */
+ mov r11, r10 /* save destination address */
+
+ /* copy .text section and flush the cache along the way */
+ lda.w r8, _text
+ lda.w r9, _etext
+ sub lr, r10, r8 /* relocation offset */
+
+1: ldm r8++, r0-r3
+ stm r10, r0-r3
+ sub r10, -16
+ ldm r8++, r0-r3
+ stm r10, r0-r3
+ sub r10, -16
+ cp.w r8, r9
+ cache r10[-4], 0x0d /* dcache clean/invalidate */
+ cache r10[-4], 0x01 /* icache invalidate */
+ brlt 1b
+
+ /* flush write buffer */
+ sync 0
+
+ /* copy data sections */
+ lda.w r9, _edata
+1: ld.d r0, r8++
+ st.d r10++, r0
+ cp.w r8, r9
+ brlt 1b
+
+ /* zero out .bss */
+ mov r0, 0
+ mov r1, 0
+ lda.w r9, _end
+ sub r9, r8
+1: st.d r10++, r0
+ sub r9, 8
+ brgt 1b
+
+ /* jump to RAM */
+ sub r0, pc, . - in_ram
+ add pc, r0, lr
+
+ .align 2
+in_ram:
+ /* find the new GOT and relocate it */
+ lddpc r6, got_init_reloc
+3: rsub r6, pc
+ mov r8, r6
+ lda.w r9, _egot
+ lda.w r10, _got
+ sub r9, r10
+1: ld.w r0, r8[0]
+ add r0, lr
+ st.w r8++, r0
+ sub r9, 4
+ brgt 1b
+
+ /* Move the exception handlers */
+ mfsr r2, SYSREG_EVBA
+ add r2, lr
+ mtsr SYSREG_EVBA, r2
+
+ /* Do the rest of the initialization sequence */
+ call board_init_r
+
+ .align 2
+got_init_reloc:
+ .long 3b - _GLOBAL_OFFSET_TABLE_
+
+ .size relocate_code, . - relocate_code
#include <atmel_lcdc.h>
#include <lcd.h>
-#include "../../../cpu/at32ap/hsmc3.h"
+#include "../../../arch/avr32/cpu/hsmc3.h"
#if defined(CONFIG_LCD)
/* 480x272x16 @ 72 Hz */
+++ /dev/null
-#
-# (C) Copyright 2000-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# Copyright (C) 2005-2006 Atmel Corporation.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-include $(TOPDIR)/config.mk
-
-LIB := $(obj)lib$(CPU).a
-
-START-y += start.o
-
-COBJS-y += cpu.o
-COBJS-$(CONFIG_SYS_HSDRAMC) += hsdramc.o
-COBJS-y += exception.o
-COBJS-y += cache.o
-COBJS-y += interrupts.o
-COBJS-$(CONFIG_PORTMUX_PIO) += portmux-pio.o
-COBJS-$(CONFIG_PORTMUX_GPIO) += portmux-gpio.o
-
-SRCS := $(START-y:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
-START := $(addprefix $(obj),$(START-y))
-
-all: $(obj).depend $(START) $(LIB)
-
-$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $^
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+++ /dev/null
-#
-# Copyright (C) 2005-2006 Atmel Corporation
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-include $(TOPDIR)/config.mk
-
-LIB := $(obj)lib$(SOC).a
-
-COBJS := portmux.o clk.o
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-all: $(obj).depend $(LIB)
-
-$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $^
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+++ /dev/null
-/*
- * Copyright (C) 2005-2008 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-
-#include <asm/io.h>
-
-#include <asm/arch/clk.h>
-#include <asm/arch/memory-map.h>
-#include <asm/arch/portmux.h>
-
-#include "sm.h"
-
-void clk_init(void)
-{
- uint32_t cksel;
-
- /* in case of soft resets, disable watchdog */
- sm_writel(WDT_CTRL, SM_BF(KEY, 0x55));
- sm_writel(WDT_CTRL, SM_BF(KEY, 0xaa));
-
-#ifdef CONFIG_PLL
- /* Initialize the PLL */
- sm_writel(PM_PLL0, (SM_BF(PLLCOUNT, CONFIG_SYS_PLL0_SUPPRESS_CYCLES)
- | SM_BF(PLLMUL, CONFIG_SYS_PLL0_MUL - 1)
- | SM_BF(PLLDIV, CONFIG_SYS_PLL0_DIV - 1)
- | SM_BF(PLLOPT, CONFIG_SYS_PLL0_OPT)
- | SM_BF(PLLOSC, 0)
- | SM_BIT(PLLEN)));
-
- /* Wait for lock */
- while (!(sm_readl(PM_ISR) & SM_BIT(LOCK0))) ;
-#endif
-
- /* Set up clocks for the CPU and all peripheral buses */
- cksel = 0;
- if (CONFIG_SYS_CLKDIV_CPU)
- cksel |= SM_BIT(CPUDIV) | SM_BF(CPUSEL, CONFIG_SYS_CLKDIV_CPU - 1);
- if (CONFIG_SYS_CLKDIV_HSB)
- cksel |= SM_BIT(HSBDIV) | SM_BF(HSBSEL, CONFIG_SYS_CLKDIV_HSB - 1);
- if (CONFIG_SYS_CLKDIV_PBA)
- cksel |= SM_BIT(PBADIV) | SM_BF(PBASEL, CONFIG_SYS_CLKDIV_PBA - 1);
- if (CONFIG_SYS_CLKDIV_PBB)
- cksel |= SM_BIT(PBBDIV) | SM_BF(PBBSEL, CONFIG_SYS_CLKDIV_PBB - 1);
- sm_writel(PM_CKSEL, cksel);
-
-#ifdef CONFIG_PLL
- /* Use PLL0 as main clock */
- sm_writel(PM_MCCTRL, SM_BIT(PLLSEL));
-
-#ifdef CONFIG_LCD
- /* Set up pixel clock for the LCDC */
- sm_writel(PM_GCCTRL(7), SM_BIT(PLLSEL) | SM_BIT(CEN));
-#endif
-#endif
-}
-
-unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
- unsigned long rate, unsigned long parent_rate)
-{
- unsigned long divider;
-
- if (rate == 0 || parent_rate == 0) {
- sm_writel(PM_GCCTRL(id), 0);
- return 0;
- }
-
- divider = (parent_rate + rate / 2) / rate;
- if (divider <= 1) {
- sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN));
- rate = parent_rate;
- } else {
- divider = min(255, divider / 2 - 1);
- sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN) | SM_BIT(DIVEN)
- | SM_BF(DIV, divider));
- rate = parent_rate / (2 * (divider + 1));
- }
-
- return rate;
-}
+++ /dev/null
-/*
- * Copyright (C) 2006, 2008 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-
-#include <asm/io.h>
-
-#include <asm/arch/chip-features.h>
-#include <asm/arch/memory-map.h>
-#include <asm/arch/portmux.h>
-
-/*
- * Lots of small functions here. We depend on --gc-sections getting
- * rid of the ones we don't need.
- */
-void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width,
- unsigned long flags, unsigned long drive_strength)
-{
- unsigned long porte_mask = 0;
-
- if (bus_width > 16)
- portmux_select_peripheral(PORTMUX_PORT_E, 0xffff,
- PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
- if (addr_width > 23)
- porte_mask |= (((1 << (addr_width - 23)) - 1) & 7) << 16;
- if (flags & PORTMUX_EBI_CS(2))
- porte_mask |= 1 << 25;
- if (flags & PORTMUX_EBI_CS(4))
- porte_mask |= 1 << 21;
- if (flags & PORTMUX_EBI_CS(5))
- porte_mask |= 1 << 22;
- if (flags & (PORTMUX_EBI_CF(0) | PORTMUX_EBI_CF(1)))
- porte_mask |= (1 << 19) | (1 << 20) | (1 << 23);
-
- portmux_select_peripheral(PORTMUX_PORT_E, porte_mask,
- PORTMUX_FUNC_A, 0);
-
- if (flags & PORTMUX_EBI_NWAIT)
- portmux_select_peripheral(PORTMUX_PORT_E, 1 << 24,
- PORTMUX_FUNC_A, PORTMUX_PULL_UP);
-}
-
-#ifdef AT32AP700x_CHIP_HAS_MACB
-void portmux_enable_macb0(unsigned long flags, unsigned long drive_strength)
-{
- unsigned long portc_mask;
-
- portc_mask = (1 << 3) /* TXD0 */
- | (1 << 4) /* TXD1 */
- | (1 << 7) /* TXEN */
- | (1 << 8) /* TXCK */
- | (1 << 9) /* RXD0 */
- | (1 << 10) /* RXD1 */
- | (1 << 13) /* RXER */
- | (1 << 15) /* RXDV */
- | (1 << 16) /* MDC */
- | (1 << 17); /* MDIO */
-
- if (flags & PORTMUX_MACB_MII)
- portc_mask |= (1 << 0) /* COL */
- | (1 << 1) /* CRS */
- | (1 << 2) /* TXER */
- | (1 << 5) /* TXD2 */
- | (1 << 6) /* TXD3 */
- | (1 << 11) /* RXD2 */
- | (1 << 12) /* RXD3 */
- | (1 << 14); /* RXCK */
-
- if (flags & PORTMUX_MACB_SPEED)
- portc_mask |= (1 << 18);/* SPD */
-
- /* REVISIT: Some pins are probably pure outputs */
- portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
- PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
-}
-
-void portmux_enable_macb1(unsigned long flags, unsigned long drive_strength)
-{
- unsigned long portc_mask = 0;
- unsigned long portd_mask;
-
- portd_mask = (1 << 13) /* TXD0 */
- | (1 << 14) /* TXD1 */
- | (1 << 11) /* TXEN */
- | (1 << 12) /* TXCK */
- | (1 << 10) /* RXD0 */
- | (1 << 6) /* RXD1 */
- | (1 << 5) /* RXER */
- | (1 << 4) /* RXDV */
- | (1 << 3) /* MDC */
- | (1 << 2); /* MDIO */
-
- if (flags & PORTMUX_MACB_MII)
- portc_mask = (1 << 19) /* COL */
- | (1 << 23) /* CRS */
- | (1 << 26) /* TXER */
- | (1 << 27) /* TXD2 */
- | (1 << 28) /* TXD3 */
- | (1 << 29) /* RXD2 */
- | (1 << 30) /* RXD3 */
- | (1 << 24); /* RXCK */
-
- if (flags & PORTMUX_MACB_SPEED)
- portd_mask |= (1 << 15);/* SPD */
-
- /* REVISIT: Some pins are probably pure outputs */
- portmux_select_peripheral(PORTMUX_PORT_D, portc_mask,
- PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
- portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
- PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
-}
-#endif
-
-#ifdef AT32AP700x_CHIP_HAS_MMCI
-void portmux_enable_mmci(unsigned int slot, unsigned long flags,
- unsigned long drive_strength)
-{
- unsigned long mask;
- unsigned long portmux_flags = PORTMUX_PULL_UP;
-
- /* First, the common CLK signal. It doesn't need a pull-up */
- portmux_select_peripheral(PORTMUX_PORT_A, 1 << 10,
- PORTMUX_FUNC_A, 0);
-
- if (flags & PORTMUX_MMCI_EXT_PULLUP)
- portmux_flags = 0;
-
- /* Then, the per-slot signals */
- switch (slot) {
- case 0:
- mask = (1 << 11) | (1 << 12); /* CMD and DATA0 */
- if (flags & PORTMUX_MMCI_4BIT)
- /* DATA1..DATA3 */
- mask |= (1 << 13) | (1 << 14) | (1 << 15);
- portmux_select_peripheral(PORTMUX_PORT_A, mask,
- PORTMUX_FUNC_A, portmux_flags);
- break;
- case 1:
- mask = (1 << 6) | (1 << 7); /* CMD and DATA0 */
- if (flags & PORTMUX_MMCI_4BIT)
- /* DATA1..DATA3 */
- mask |= (1 << 8) | (1 << 9) | (1 << 10);
- portmux_select_peripheral(PORTMUX_PORT_B, mask,
- PORTMUX_FUNC_B, portmux_flags);
- break;
- }
-}
-#endif
-
-#ifdef AT32AP700x_CHIP_HAS_SPI
-void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength)
-{
- unsigned long pin_mask;
-
- /* MOSI and SCK */
- portmux_select_peripheral(PORTMUX_PORT_A, (1 << 1) | (1 << 2),
- PORTMUX_FUNC_A, 0);
- /* MISO may float */
- portmux_select_peripheral(PORTMUX_PORT_A, 1 << 0,
- PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
-
- /* Set up NPCSx as GPIO outputs, initially high */
- pin_mask = (cs_mask & 7) << 3;
- if (cs_mask & (1 << 3))
- pin_mask |= 1 << 20;
-
- portmux_select_gpio(PORTMUX_PORT_A, pin_mask,
- PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
-}
-
-void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength)
-{
- /* MOSI and SCK */
- portmux_select_peripheral(PORTMUX_PORT_B, (1 << 1) | (1 << 5),
- PORTMUX_FUNC_B, 0);
- /* MISO may float */
- portmux_select_peripheral(PORTMUX_PORT_B, 1 << 0,
- PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
-
- /* Set up NPCSx as GPIO outputs, initially high */
- portmux_select_gpio(PORTMUX_PORT_B, (cs_mask & 7) << 2,
- PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
- portmux_select_gpio(PORTMUX_PORT_A, (cs_mask & 8) << (27 - 3),
- PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
-}
-#endif
-
-#ifdef AT32AP700x_CHIP_HAS_LCDC
-void portmux_enable_lcdc(int pin_config)
-{
- unsigned long portc_mask = 0;
- unsigned long portd_mask = 0;
- unsigned long porte_mask = 0;
-
- switch (pin_config) {
- case 0:
- portc_mask = (1 << 19) /* CC */
- | (1 << 20) /* HSYNC */
- | (1 << 21) /* PCLK */
- | (1 << 22) /* VSYNC */
- | (1 << 23) /* DVAL */
- | (1 << 24) /* MODE */
- | (1 << 25) /* PWR */
- | (1 << 26) /* DATA0 */
- | (1 << 27) /* DATA1 */
- | (1 << 28) /* DATA2 */
- | (1 << 29) /* DATA3 */
- | (1 << 30) /* DATA4 */
- | (1 << 31); /* DATA5 */
-
- portd_mask = (1 << 0) /* DATA6 */
- | (1 << 1) /* DATA7 */
- | (1 << 2) /* DATA8 */
- | (1 << 3) /* DATA9 */
- | (1 << 4) /* DATA10 */
- | (1 << 5) /* DATA11 */
- | (1 << 6) /* DATA12 */
- | (1 << 7) /* DATA13 */
- | (1 << 8) /* DATA14 */
- | (1 << 9) /* DATA15 */
- | (1 << 10) /* DATA16 */
- | (1 << 11) /* DATA17 */
- | (1 << 12) /* DATA18 */
- | (1 << 13) /* DATA19 */
- | (1 << 14) /* DATA20 */
- | (1 << 15) /* DATA21 */
- | (1 << 16) /* DATA22 */
- | (1 << 17); /* DATA23 */
- break;
-
- case 1:
- portc_mask = (1 << 20) /* HSYNC */
- | (1 << 21) /* PCLK */
- | (1 << 22) /* VSYNC */
- | (1 << 25) /* PWR */
- | (1 << 31); /* DATA5 */
-
- portd_mask = (1 << 0) /* DATA6 */
- | (1 << 1) /* DATA7 */
- | (1 << 7) /* DATA13 */
- | (1 << 8) /* DATA14 */
- | (1 << 9) /* DATA15 */
- | (1 << 16) /* DATA22 */
- | (1 << 17); /* DATA23 */
-
- porte_mask = (1 << 0) /* CC */
- | (1 << 1) /* DVAL */
- | (1 << 2) /* MODE */
- | (1 << 3) /* DATA0 */
- | (1 << 4) /* DATA1 */
- | (1 << 5) /* DATA2 */
- | (1 << 6) /* DATA3 */
- | (1 << 7) /* DATA4 */
- | (1 << 8) /* DATA8 */
- | (1 << 9) /* DATA9 */
- | (1 << 10) /* DATA10 */
- | (1 << 11) /* DATA11 */
- | (1 << 12) /* DATA12 */
- | (1 << 13) /* DATA16 */
- | (1 << 14) /* DATA17 */
- | (1 << 15) /* DATA18 */
- | (1 << 16) /* DATA19 */
- | (1 << 17) /* DATA20 */
- | (1 << 18); /* DATA21 */
- break;
- }
-
- /* REVISIT: Some pins are probably pure outputs */
- portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
- PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
- portmux_select_peripheral(PORTMUX_PORT_D, portd_mask,
- PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
- portmux_select_peripheral(PORTMUX_PORT_E, porte_mask,
- PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
-}
-#endif
+++ /dev/null
-/*
- * Register definitions for System Manager
- */
-#ifndef __CPU_AT32AP_SM_H__
-#define __CPU_AT32AP_SM_H__
-
-/* SM register offsets */
-#define SM_PM_MCCTRL 0x0000
-#define SM_PM_CKSEL 0x0004
-#define SM_PM_CPU_MASK 0x0008
-#define SM_PM_HSB_MASK 0x000c
-#define SM_PM_PBA_MASK 0x0010
-#define SM_PM_PBB_MASK 0x0014
-#define SM_PM_PLL0 0x0020
-#define SM_PM_PLL1 0x0024
-#define SM_PM_VCTRL 0x0030
-#define SM_PM_VMREF 0x0034
-#define SM_PM_VMV 0x0038
-#define SM_PM_IER 0x0040
-#define SM_PM_IDR 0x0044
-#define SM_PM_IMR 0x0048
-#define SM_PM_ISR 0x004c
-#define SM_PM_ICR 0x0050
-#define SM_PM_GCCTRL(x) (0x0060 + 4 * x)
-#define SM_RTC_CTRL 0x0080
-#define SM_RTC_VAL 0x0084
-#define SM_RTC_TOP 0x0088
-#define SM_RTC_IER 0x0090
-#define SM_RTC_IDR 0x0094
-#define SM_RTC_IMR 0x0098
-#define SM_RTC_ISR 0x009c
-#define SM_RTC_ICR 0x00a0
-#define SM_WDT_CTRL 0x00b0
-#define SM_WDT_CLR 0x00b4
-#define SM_WDT_EXT 0x00b8
-#define SM_RC_RCAUSE 0x00c0
-#define SM_EIM_IER 0x0100
-#define SM_EIM_IDR 0x0104
-#define SM_EIM_IMR 0x0108
-#define SM_EIM_ISR 0x010c
-#define SM_EIM_ICR 0x0110
-#define SM_EIM_MODE 0x0114
-#define SM_EIM_EDGE 0x0118
-#define SM_EIM_LEVEL 0x011c
-#define SM_EIM_TEST 0x0120
-#define SM_EIM_NMIC 0x0124
-
-/* Bitfields in PM_CKSEL */
-#define SM_CPUSEL_OFFSET 0
-#define SM_CPUSEL_SIZE 3
-#define SM_CPUDIV_OFFSET 7
-#define SM_CPUDIV_SIZE 1
-#define SM_HSBSEL_OFFSET 8
-#define SM_HSBSEL_SIZE 3
-#define SM_HSBDIV_OFFSET 15
-#define SM_HSBDIV_SIZE 1
-#define SM_PBASEL_OFFSET 16
-#define SM_PBASEL_SIZE 3
-#define SM_PBADIV_OFFSET 23
-#define SM_PBADIV_SIZE 1
-#define SM_PBBSEL_OFFSET 24
-#define SM_PBBSEL_SIZE 3
-#define SM_PBBDIV_OFFSET 31
-#define SM_PBBDIV_SIZE 1
-
-/* Bitfields in PM_PLL0 */
-#define SM_PLLEN_OFFSET 0
-#define SM_PLLEN_SIZE 1
-#define SM_PLLOSC_OFFSET 1
-#define SM_PLLOSC_SIZE 1
-#define SM_PLLOPT_OFFSET 2
-#define SM_PLLOPT_SIZE 3
-#define SM_PLLDIV_OFFSET 8
-#define SM_PLLDIV_SIZE 8
-#define SM_PLLMUL_OFFSET 16
-#define SM_PLLMUL_SIZE 8
-#define SM_PLLCOUNT_OFFSET 24
-#define SM_PLLCOUNT_SIZE 6
-#define SM_PLLTEST_OFFSET 31
-#define SM_PLLTEST_SIZE 1
-
-/* Bitfields in PM_VCTRL */
-#define SM_VAUTO_OFFSET 0
-#define SM_VAUTO_SIZE 1
-#define SM_PM_VCTRL_VAL_OFFSET 8
-#define SM_PM_VCTRL_VAL_SIZE 7
-
-/* Bitfields in PM_VMREF */
-#define SM_REFSEL_OFFSET 0
-#define SM_REFSEL_SIZE 4
-
-/* Bitfields in PM_VMV */
-#define SM_PM_VMV_VAL_OFFSET 0
-#define SM_PM_VMV_VAL_SIZE 8
-
-/* Bitfields in PM_ICR */
-#define SM_LOCK0_OFFSET 0
-#define SM_LOCK0_SIZE 1
-#define SM_LOCK1_OFFSET 1
-#define SM_LOCK1_SIZE 1
-#define SM_WAKE_OFFSET 2
-#define SM_WAKE_SIZE 1
-#define SM_VOK_OFFSET 3
-#define SM_VOK_SIZE 1
-#define SM_VMRDY_OFFSET 4
-#define SM_VMRDY_SIZE 1
-#define SM_CKRDY_OFFSET 5
-#define SM_CKRDY_SIZE 1
-
-/* Bitfields in PM_GCCTRL */
-#define SM_OSCSEL_OFFSET 0
-#define SM_OSCSEL_SIZE 1
-#define SM_PLLSEL_OFFSET 1
-#define SM_PLLSEL_SIZE 1
-#define SM_CEN_OFFSET 2
-#define SM_CEN_SIZE 1
-#define SM_CPC_OFFSET 3
-#define SM_CPC_SIZE 1
-#define SM_DIVEN_OFFSET 4
-#define SM_DIVEN_SIZE 1
-#define SM_DIV_OFFSET 8
-#define SM_DIV_SIZE 8
-
-/* Bitfields in RTC_CTRL */
-#define SM_PCLR_OFFSET 1
-#define SM_PCLR_SIZE 1
-#define SM_TOPEN_OFFSET 2
-#define SM_TOPEN_SIZE 1
-#define SM_CLKEN_OFFSET 3
-#define SM_CLKEN_SIZE 1
-#define SM_PSEL_OFFSET 8
-#define SM_PSEL_SIZE 16
-
-/* Bitfields in RTC_VAL */
-#define SM_RTC_VAL_VAL_OFFSET 0
-#define SM_RTC_VAL_VAL_SIZE 31
-
-/* Bitfields in RTC_TOP */
-#define SM_RTC_TOP_VAL_OFFSET 0
-#define SM_RTC_TOP_VAL_SIZE 32
-
-/* Bitfields in RTC_ICR */
-#define SM_TOPI_OFFSET 0
-#define SM_TOPI_SIZE 1
-
-/* Bitfields in WDT_CTRL */
-#define SM_KEY_OFFSET 24
-#define SM_KEY_SIZE 8
-
-/* Bitfields in RC_RCAUSE */
-#define SM_POR_OFFSET 0
-#define SM_POR_SIZE 1
-#define SM_BOD_OFFSET 1
-#define SM_BOD_SIZE 1
-#define SM_EXT_OFFSET 2
-#define SM_EXT_SIZE 1
-#define SM_WDT_OFFSET 3
-#define SM_WDT_SIZE 1
-#define SM_NTAE_OFFSET 4
-#define SM_NTAE_SIZE 1
-#define SM_SERP_OFFSET 5
-#define SM_SERP_SIZE 1
-
-/* Bitfields in EIM_EDGE */
-#define SM_INT0_OFFSET 0
-#define SM_INT0_SIZE 1
-#define SM_INT1_OFFSET 1
-#define SM_INT1_SIZE 1
-#define SM_INT2_OFFSET 2
-#define SM_INT2_SIZE 1
-#define SM_INT3_OFFSET 3
-#define SM_INT3_SIZE 1
-
-/* Bitfields in EIM_LEVEL */
-
-/* Bitfields in EIM_TEST */
-#define SM_TESTEN_OFFSET 31
-#define SM_TESTEN_SIZE 1
-
-/* Bitfields in EIM_NMIC */
-#define SM_EN_OFFSET 0
-#define SM_EN_SIZE 1
-
-/* Bit manipulation macros */
-#define SM_BIT(name) \
- (1 << SM_##name##_OFFSET)
-#define SM_BF(name,value) \
- (((value) & ((1 << SM_##name##_SIZE) - 1)) \
- << SM_##name##_OFFSET)
-#define SM_BFEXT(name,value) \
- (((value) >> SM_##name##_OFFSET) \
- & ((1 << SM_##name##_SIZE) - 1))
-#define SM_BFINS(name,value,old) \
- (((old) & ~(((1 << SM_##name##_SIZE) - 1) \
- << SM_##name##_OFFSET)) \
- | SM_BF(name,value))
-
-/* Register access macros */
-#define sm_readl(reg) \
- readl((void *)SM_BASE + SM_##reg)
-#define sm_writel(reg,value) \
- writel((value), (void *)SM_BASE + SM_##reg)
-
-#endif /* __CPU_AT32AP_SM_H__ */
+++ /dev/null
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-
-#include <asm/arch/cacheflush.h>
-
-void dcache_clean_range(volatile void *start, size_t size)
-{
- unsigned long v, begin, end, linesz;
-
- linesz = CONFIG_SYS_DCACHE_LINESZ;
-
- /* You asked for it, you got it */
- begin = (unsigned long)start & ~(linesz - 1);
- end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
- for (v = begin; v < end; v += linesz)
- dcache_clean_line((void *)v);
-
- sync_write_buffer();
-}
-
-void dcache_invalidate_range(volatile void *start, size_t size)
-{
- unsigned long v, begin, end, linesz;
-
- linesz = CONFIG_SYS_DCACHE_LINESZ;
-
- /* You asked for it, you got it */
- begin = (unsigned long)start & ~(linesz - 1);
- end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
- for (v = begin; v < end; v += linesz)
- dcache_invalidate_line((void *)v);
-}
-
-void dcache_flush_range(volatile void *start, size_t size)
-{
- unsigned long v, begin, end, linesz;
-
- linesz = CONFIG_SYS_DCACHE_LINESZ;
-
- /* You asked for it, you got it */
- begin = (unsigned long)start & ~(linesz - 1);
- end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
- for (v = begin; v < end; v += linesz)
- dcache_flush_line((void *)v);
-
- sync_write_buffer();
-}
-
-void icache_invalidate_range(volatile void *start, size_t size)
-{
- unsigned long v, begin, end, linesz;
-
- linesz = CONFIG_SYS_ICACHE_LINESZ;
-
- /* You asked for it, you got it */
- begin = (unsigned long)start & ~(linesz - 1);
- end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
-
- for (v = begin; v < end; v += linesz)
- icache_invalidate_line((void *)v);
-}
-
-/*
- * This is called after loading something into memory. We need to
- * make sure that everything that was loaded is actually written to
- * RAM, and that the icache will look for it. Cleaning the dcache and
- * invalidating the icache will do the trick.
- */
-void flush_cache (unsigned long start_addr, unsigned long size)
-{
- dcache_clean_range((void *)start_addr, size);
- icache_invalidate_range((void *)start_addr, size);
-}
+++ /dev/null
-#
-# Copyright (C) 2005-2006 Atmel Corporation
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-PLATFORM_RELFLAGS += -mcpu=ap7000
+++ /dev/null
-/*
- * Copyright (C) 2005-2006 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-#include <command.h>
-
-#include <asm/io.h>
-#include <asm/sections.h>
-#include <asm/sysreg.h>
-
-#include <asm/arch/clk.h>
-#include <asm/arch/memory-map.h>
-
-#include "hsmc3.h"
-
-/* Sanity checks */
-#if (CONFIG_SYS_CLKDIV_CPU > CONFIG_SYS_CLKDIV_HSB) \
- || (CONFIG_SYS_CLKDIV_HSB > CONFIG_SYS_CLKDIV_PBA) \
- || (CONFIG_SYS_CLKDIV_HSB > CONFIG_SYS_CLKDIV_PBB)
-# error Constraint fCPU >= fHSB >= fPB{A,B} violated
-#endif
-#if defined(CONFIG_PLL) && ((CONFIG_SYS_PLL0_MUL < 1) || (CONFIG_SYS_PLL0_DIV < 1))
-# error Invalid PLL multiplier and/or divider
-#endif
-
-DECLARE_GLOBAL_DATA_PTR;
-
-int cpu_init(void)
-{
- extern void _evba(void);
-
- gd->cpu_hz = CONFIG_SYS_OSC0_HZ;
-
- /* TODO: Move somewhere else, but needs to be run before we
- * increase the clock frequency. */
- hsmc3_writel(MODE0, 0x00031103);
- hsmc3_writel(CYCLE0, 0x000c000d);
- hsmc3_writel(PULSE0, 0x0b0a0906);
- hsmc3_writel(SETUP0, 0x00010002);
-
- clk_init();
-
- /* Update the CPU speed according to the PLL configuration */
- gd->cpu_hz = get_cpu_clk_rate();
-
- /* Set up the exception handler table and enable exceptions */
- sysreg_write(EVBA, (unsigned long)&_evba);
- asm volatile("csrf %0" : : "i"(SYSREG_EM_OFFSET));
-
- return 0;
-}
-
-void prepare_to_boot(void)
-{
- /* Flush both caches and the write buffer */
- asm volatile("cache %0[4], 010\n\t"
- "cache %0[0], 000\n\t"
- "sync 0" : : "r"(0) : "memory");
-}
-
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- /* This will reset the CPU core, caches, MMU and all internal busses */
- __builtin_mtdr(8, 1 << 13); /* set DC:DBE */
- __builtin_mtdr(8, 1 << 30); /* set DC:RES */
-
- /* Flush the pipeline before we declare it a failure */
- asm volatile("sub pc, pc, -4");
-
- return -1;
-}
+++ /dev/null
-/*
- * Copyright (C) 2005-2006 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-
-#include <asm/sysreg.h>
-#include <asm/ptrace.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static const char * const cpu_modes[8] = {
- "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1",
- "Interrupt level 2", "Interrupt level 3", "Exception", "NMI"
-};
-
-static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
-{
- unsigned long p;
- int i;
-
- printf("%s(0x%08lx to 0x%08lx)\n", str, bottom, top);
-
- for (p = bottom & ~31; p < top; ) {
- printf("%04lx: ", p & 0xffff);
-
- for (i = 0; i < 8; i++, p += 4) {
- unsigned int val;
-
- if (p < bottom || p >= top)
- printf(" ");
- else {
- val = *(unsigned long *)p;
- printf("%08x ", val);
- }
- }
- printf("\n");
- }
-}
-
-void do_unknown_exception(unsigned int ecr, struct pt_regs *regs)
-{
- unsigned int mode;
-
- printf("\n *** Unhandled exception %u at PC=0x%08lx\n", ecr, regs->pc);
-
- switch (ecr) {
- case ECR_BUS_ERROR_WRITE:
- case ECR_BUS_ERROR_READ:
- printf("Bus error at address 0x%08lx\n",
- sysreg_read(BEAR));
- break;
- case ECR_TLB_MULTIPLE:
- case ECR_ADDR_ALIGN_X:
- case ECR_PROTECTION_X:
- case ECR_ADDR_ALIGN_R:
- case ECR_ADDR_ALIGN_W:
- case ECR_PROTECTION_R:
- case ECR_PROTECTION_W:
- case ECR_DTLB_MODIFIED:
- case ECR_TLB_MISS_X:
- case ECR_TLB_MISS_R:
- case ECR_TLB_MISS_W:
- printf("MMU exception at address 0x%08lx\n",
- sysreg_read(TLBEAR));
- break;
- }
-
- printf(" pc: %08lx lr: %08lx sp: %08lx r12: %08lx\n",
- regs->pc, regs->lr, regs->sp, regs->r12);
- printf(" r11: %08lx r10: %08lx r9: %08lx r8: %08lx\n",
- regs->r11, regs->r10, regs->r9, regs->r8);
- printf(" r7: %08lx r6: %08lx r5: %08lx r4: %08lx\n",
- regs->r7, regs->r6, regs->r5, regs->r4);
- printf(" r3: %08lx r2: %08lx r1: %08lx r0: %08lx\n",
- regs->r3, regs->r2, regs->r1, regs->r0);
- printf("Flags: %c%c%c%c%c\n",
- regs->sr & SR_Q ? 'Q' : 'q',
- regs->sr & SR_V ? 'V' : 'v',
- regs->sr & SR_N ? 'N' : 'n',
- regs->sr & SR_Z ? 'Z' : 'z',
- regs->sr & SR_C ? 'C' : 'c');
- printf("Mode bits: %c%c%c%c%c%c%c%c%c\n",
- regs->sr & SR_H ? 'H' : 'h',
- regs->sr & SR_R ? 'R' : 'r',
- regs->sr & SR_J ? 'J' : 'j',
- regs->sr & SR_EM ? 'E' : 'e',
- regs->sr & SR_I3M ? '3' : '.',
- regs->sr & SR_I2M ? '2' : '.',
- regs->sr & SR_I1M ? '1' : '.',
- regs->sr & SR_I0M ? '0' : '.',
- regs->sr & SR_GM ? 'G' : 'g');
- mode = (regs->sr >> SYSREG_M0_OFFSET) & 7;
- printf("CPU Mode: %s\n", cpu_modes[mode]);
-
- /* Avoid exception loops */
- if (regs->sp < (gd->stack_end - CONFIG_STACKSIZE)
- || regs->sp >= gd->stack_end)
- printf("\nStack pointer seems bogus, won't do stack dump\n");
- else
- dump_mem("\nStack: ", regs->sp, gd->stack_end);
-
- panic("Unhandled exception\n");
-}
+++ /dev/null
-/*
- * Copyright (C) 2005-2006 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-
-#include <asm/io.h>
-#include <asm/sdram.h>
-
-#include <asm/arch/clk.h>
-#include <asm/arch/memory-map.h>
-
-#include "hsdramc1.h"
-
-unsigned long sdram_init(void *sdram_base, const struct sdram_config *config)
-{
- unsigned long sdram_size;
- uint32_t cfgreg;
- unsigned int i;
-
- cfgreg = (HSDRAMC1_BF(NC, config->col_bits - 8)
- | HSDRAMC1_BF(NR, config->row_bits - 11)
- | HSDRAMC1_BF(NB, config->bank_bits - 1)
- | HSDRAMC1_BF(CAS, config->cas)
- | HSDRAMC1_BF(TWR, config->twr)
- | HSDRAMC1_BF(TRC, config->trc)
- | HSDRAMC1_BF(TRP, config->trp)
- | HSDRAMC1_BF(TRCD, config->trcd)
- | HSDRAMC1_BF(TRAS, config->tras)
- | HSDRAMC1_BF(TXSR, config->txsr));
-
- if (config->data_bits == SDRAM_DATA_16BIT)
- cfgreg |= HSDRAMC1_BIT(DBW);
-
- hsdramc1_writel(CR, cfgreg);
-
- /* Send a NOP to turn on the clock (necessary on some chips) */
- hsdramc1_writel(MR, HSDRAMC1_MODE_NOP);
- hsdramc1_readl(MR);
- writel(0, sdram_base);
-
- /*
- * Initialization sequence for SDRAM, from the data sheet:
- *
- * 1. A minimum pause of 200 us is provided to precede any
- * signal toggle.
- */
- udelay(200);
-
- /*
- * 2. A Precharge All command is issued to the SDRAM
- */
- hsdramc1_writel(MR, HSDRAMC1_MODE_BANKS_PRECHARGE);
- hsdramc1_readl(MR);
- writel(0, sdram_base);
-
- /*
- * 3. Eight auto-refresh (CBR) cycles are provided
- */
- hsdramc1_writel(MR, HSDRAMC1_MODE_AUTO_REFRESH);
- hsdramc1_readl(MR);
- for (i = 0; i < 8; i++)
- writel(0, sdram_base);
-
- /*
- * 4. A mode register set (MRS) cycle is issued to program
- * SDRAM parameters, in particular CAS latency and burst
- * length.
- *
- * The address will be chosen by the SDRAMC automatically; we
- * just have to make sure BA[1:0] are set to 0.
- */
- hsdramc1_writel(MR, HSDRAMC1_MODE_LOAD_MODE);
- hsdramc1_readl(MR);
- writel(0, sdram_base);
-
- /*
- * 5. The application must go into Normal Mode, setting Mode
- * to 0 in the Mode Register and performing a write access
- * at any location in the SDRAM.
- */
- hsdramc1_writel(MR, HSDRAMC1_MODE_NORMAL);
- hsdramc1_readl(MR);
- writel(0, sdram_base);
-
- /*
- * 6. Write refresh rate into SDRAMC refresh timer count
- * register (refresh rate = timing between refresh cycles).
- */
- hsdramc1_writel(TR, config->refresh_period);
-
- if (config->data_bits == SDRAM_DATA_16BIT)
- sdram_size = 1 << (config->row_bits + config->col_bits
- + config->bank_bits + 1);
- else
- sdram_size = 1 << (config->row_bits + config->col_bits
- + config->bank_bits + 2);
-
- return sdram_size;
-}
+++ /dev/null
-/*
- * Register definitions for SDRAM Controller
- */
-#ifndef __ASM_AVR32_HSDRAMC1_H__
-#define __ASM_AVR32_HSDRAMC1_H__
-
-/* HSDRAMC1 register offsets */
-#define HSDRAMC1_MR 0x0000
-#define HSDRAMC1_TR 0x0004
-#define HSDRAMC1_CR 0x0008
-#define HSDRAMC1_HSR 0x000c
-#define HSDRAMC1_LPR 0x0010
-#define HSDRAMC1_IER 0x0014
-#define HSDRAMC1_IDR 0x0018
-#define HSDRAMC1_IMR 0x001c
-#define HSDRAMC1_ISR 0x0020
-#define HSDRAMC1_MDR 0x0024
-#define HSDRAMC1_VERSION 0x00fc
-
-/* Bitfields in MR */
-#define HSDRAMC1_MODE_OFFSET 0
-#define HSDRAMC1_MODE_SIZE 3
-
-/* Bitfields in TR */
-#define HSDRAMC1_COUNT_OFFSET 0
-#define HSDRAMC1_COUNT_SIZE 12
-
-/* Bitfields in CR */
-#define HSDRAMC1_NC_OFFSET 0
-#define HSDRAMC1_NC_SIZE 2
-#define HSDRAMC1_NR_OFFSET 2
-#define HSDRAMC1_NR_SIZE 2
-#define HSDRAMC1_NB_OFFSET 4
-#define HSDRAMC1_NB_SIZE 1
-#define HSDRAMC1_CAS_OFFSET 5
-#define HSDRAMC1_CAS_SIZE 2
-#define HSDRAMC1_DBW_OFFSET 7
-#define HSDRAMC1_DBW_SIZE 1
-#define HSDRAMC1_TWR_OFFSET 8
-#define HSDRAMC1_TWR_SIZE 4
-#define HSDRAMC1_TRC_OFFSET 12
-#define HSDRAMC1_TRC_SIZE 4
-#define HSDRAMC1_TRP_OFFSET 16
-#define HSDRAMC1_TRP_SIZE 4
-#define HSDRAMC1_TRCD_OFFSET 20
-#define HSDRAMC1_TRCD_SIZE 4
-#define HSDRAMC1_TRAS_OFFSET 24
-#define HSDRAMC1_TRAS_SIZE 4
-#define HSDRAMC1_TXSR_OFFSET 28
-#define HSDRAMC1_TXSR_SIZE 4
-
-/* Bitfields in HSR */
-#define HSDRAMC1_DA_OFFSET 0
-#define HSDRAMC1_DA_SIZE 1
-
-/* Bitfields in LPR */
-#define HSDRAMC1_LPCB_OFFSET 0
-#define HSDRAMC1_LPCB_SIZE 2
-#define HSDRAMC1_PASR_OFFSET 4
-#define HSDRAMC1_PASR_SIZE 3
-#define HSDRAMC1_TCSR_OFFSET 8
-#define HSDRAMC1_TCSR_SIZE 2
-#define HSDRAMC1_DS_OFFSET 10
-#define HSDRAMC1_DS_SIZE 2
-#define HSDRAMC1_TIMEOUT_OFFSET 12
-#define HSDRAMC1_TIMEOUT_SIZE 2
-
-/* Bitfields in IDR */
-#define HSDRAMC1_RES_OFFSET 0
-#define HSDRAMC1_RES_SIZE 1
-
-/* Bitfields in MDR */
-#define HSDRAMC1_MD_OFFSET 0
-#define HSDRAMC1_MD_SIZE 2
-
-/* Bitfields in VERSION */
-#define HSDRAMC1_VERSION_OFFSET 0
-#define HSDRAMC1_VERSION_SIZE 12
-#define HSDRAMC1_MFN_OFFSET 16
-#define HSDRAMC1_MFN_SIZE 3
-
-/* Constants for MODE */
-#define HSDRAMC1_MODE_NORMAL 0
-#define HSDRAMC1_MODE_NOP 1
-#define HSDRAMC1_MODE_BANKS_PRECHARGE 2
-#define HSDRAMC1_MODE_LOAD_MODE 3
-#define HSDRAMC1_MODE_AUTO_REFRESH 4
-#define HSDRAMC1_MODE_EXT_LOAD_MODE 5
-#define HSDRAMC1_MODE_POWER_DOWN 6
-
-/* Constants for NC */
-#define HSDRAMC1_NC_8_COLUMN_BITS 0
-#define HSDRAMC1_NC_9_COLUMN_BITS 1
-#define HSDRAMC1_NC_10_COLUMN_BITS 2
-#define HSDRAMC1_NC_11_COLUMN_BITS 3
-
-/* Constants for NR */
-#define HSDRAMC1_NR_11_ROW_BITS 0
-#define HSDRAMC1_NR_12_ROW_BITS 1
-#define HSDRAMC1_NR_13_ROW_BITS 2
-
-/* Constants for NB */
-#define HSDRAMC1_NB_TWO_BANKS 0
-#define HSDRAMC1_NB_FOUR_BANKS 1
-
-/* Constants for CAS */
-#define HSDRAMC1_CAS_ONE_CYCLE 1
-#define HSDRAMC1_CAS_TWO_CYCLES 2
-
-/* Constants for DBW */
-#define HSDRAMC1_DBW_32_BITS 0
-#define HSDRAMC1_DBW_16_BITS 1
-
-/* Constants for TIMEOUT */
-#define HSDRAMC1_TIMEOUT_AFTER_END 0
-#define HSDRAMC1_TIMEOUT_64_CYC_AFTER_END 1
-#define HSDRAMC1_TIMEOUT_128_CYC_AFTER_END 2
-
-/* Constants for MD */
-#define HSDRAMC1_MD_SDRAM 0
-#define HSDRAMC1_MD_LOW_POWER_SDRAM 1
-
-/* Bit manipulation macros */
-#define HSDRAMC1_BIT(name) \
- (1 << HSDRAMC1_##name##_OFFSET)
-#define HSDRAMC1_BF(name,value) \
- (((value) & ((1 << HSDRAMC1_##name##_SIZE) - 1)) \
- << HSDRAMC1_##name##_OFFSET)
-#define HSDRAMC1_BFEXT(name,value) \
- (((value) >> HSDRAMC1_##name##_OFFSET) \
- & ((1 << HSDRAMC1_##name##_SIZE) - 1))
-#define HSDRAMC1_BFINS(name,value,old) \
- (((old) & ~(((1 << HSDRAMC1_##name##_SIZE) - 1) \
- << HSDRAMC1_##name##_OFFSET)) \
- | HSDRAMC1_BF(name,value))
-
-/* Register access macros */
-#define hsdramc1_readl(reg) \
- readl((void *)HSDRAMC_BASE + HSDRAMC1_##reg)
-#define hsdramc1_writel(reg,value) \
- writel((value), (void *)HSDRAMC_BASE + HSDRAMC1_##reg)
-
-#endif /* __ASM_AVR32_HSDRAMC1_H__ */
+++ /dev/null
-/*
- * Register definitions for Static Memory Controller
- */
-#ifndef __CPU_AT32AP_HSMC3_H__
-#define __CPU_AT32AP_HSMC3_H__
-
-/* HSMC3 register offsets */
-#define HSMC3_SETUP0 0x0000
-#define HSMC3_PULSE0 0x0004
-#define HSMC3_CYCLE0 0x0008
-#define HSMC3_MODE0 0x000c
-#define HSMC3_SETUP1 0x0010
-#define HSMC3_PULSE1 0x0014
-#define HSMC3_CYCLE1 0x0018
-#define HSMC3_MODE1 0x001c
-#define HSMC3_SETUP2 0x0020
-#define HSMC3_PULSE2 0x0024
-#define HSMC3_CYCLE2 0x0028
-#define HSMC3_MODE2 0x002c
-#define HSMC3_SETUP3 0x0030
-#define HSMC3_PULSE3 0x0034
-#define HSMC3_CYCLE3 0x0038
-#define HSMC3_MODE3 0x003c
-#define HSMC3_SETUP4 0x0040
-#define HSMC3_PULSE4 0x0044
-#define HSMC3_CYCLE4 0x0048
-#define HSMC3_MODE4 0x004c
-#define HSMC3_SETUP5 0x0050
-#define HSMC3_PULSE5 0x0054
-#define HSMC3_CYCLE5 0x0058
-#define HSMC3_MODE5 0x005c
-
-/* Bitfields in SETUP0 */
-#define HSMC3_NWE_SETUP_OFFSET 0
-#define HSMC3_NWE_SETUP_SIZE 6
-#define HSMC3_NCS_WR_SETUP_OFFSET 8
-#define HSMC3_NCS_WR_SETUP_SIZE 6
-#define HSMC3_NRD_SETUP_OFFSET 16
-#define HSMC3_NRD_SETUP_SIZE 6
-#define HSMC3_NCS_RD_SETUP_OFFSET 24
-#define HSMC3_NCS_RD_SETUP_SIZE 6
-
-/* Bitfields in PULSE0 */
-#define HSMC3_NWE_PULSE_OFFSET 0
-#define HSMC3_NWE_PULSE_SIZE 7
-#define HSMC3_NCS_WR_PULSE_OFFSET 8
-#define HSMC3_NCS_WR_PULSE_SIZE 7
-#define HSMC3_NRD_PULSE_OFFSET 16
-#define HSMC3_NRD_PULSE_SIZE 7
-#define HSMC3_NCS_RD_PULSE_OFFSET 24
-#define HSMC3_NCS_RD_PULSE_SIZE 7
-
-/* Bitfields in CYCLE0 */
-#define HSMC3_NWE_CYCLE_OFFSET 0
-#define HSMC3_NWE_CYCLE_SIZE 9
-#define HSMC3_NRD_CYCLE_OFFSET 16
-#define HSMC3_NRD_CYCLE_SIZE 9
-
-/* Bitfields in MODE0 */
-#define HSMC3_READ_MODE_OFFSET 0
-#define HSMC3_READ_MODE_SIZE 1
-#define HSMC3_WRITE_MODE_OFFSET 1
-#define HSMC3_WRITE_MODE_SIZE 1
-#define HSMC3_EXNW_MODE_OFFSET 4
-#define HSMC3_EXNW_MODE_SIZE 2
-#define HSMC3_BAT_OFFSET 8
-#define HSMC3_BAT_SIZE 1
-#define HSMC3_DBW_OFFSET 12
-#define HSMC3_DBW_SIZE 2
-#define HSMC3_TDF_CYCLES_OFFSET 16
-#define HSMC3_TDF_CYCLES_SIZE 4
-#define HSMC3_TDF_MODE_OFFSET 20
-#define HSMC3_TDF_MODE_SIZE 1
-#define HSMC3_PMEN_OFFSET 24
-#define HSMC3_PMEN_SIZE 1
-#define HSMC3_PS_OFFSET 28
-#define HSMC3_PS_SIZE 2
-
-/* Bitfields in MODE1 */
-#define HSMC3_PD_OFFSET 28
-#define HSMC3_PD_SIZE 2
-
-/* Constants for READ_MODE */
-#define HSMC3_READ_MODE_NCS_CONTROLLED 0
-#define HSMC3_READ_MODE_NRD_CONTROLLED 1
-
-/* Constants for WRITE_MODE */
-#define HSMC3_WRITE_MODE_NCS_CONTROLLED 0
-#define HSMC3_WRITE_MODE_NWE_CONTROLLED 1
-
-/* Constants for EXNW_MODE */
-#define HSMC3_EXNW_MODE_DISABLED 0
-#define HSMC3_EXNW_MODE_RESERVED 1
-#define HSMC3_EXNW_MODE_FROZEN 2
-#define HSMC3_EXNW_MODE_READY 3
-
-/* Constants for BAT */
-#define HSMC3_BAT_BYTE_SELECT 0
-#define HSMC3_BAT_BYTE_WRITE 1
-
-/* Constants for DBW */
-#define HSMC3_DBW_8_BITS 0
-#define HSMC3_DBW_16_BITS 1
-#define HSMC3_DBW_32_BITS 2
-
-/* Bit manipulation macros */
-#define HSMC3_BIT(name) \
- (1 << HSMC3_##name##_OFFSET)
-#define HSMC3_BF(name,value) \
- (((value) & ((1 << HSMC3_##name##_SIZE) - 1)) \
- << HSMC3_##name##_OFFSET)
-#define HSMC3_BFEXT(name,value) \
- (((value) >> HSMC3_##name##_OFFSET) \
- & ((1 << HSMC3_##name##_SIZE) - 1))
-#define HSMC3_BFINS(name,value,old)\
- (((old) & ~(((1 << HSMC3_##name##_SIZE) - 1) \
- << HSMC3_##name##_OFFSET)) \
- | HSMC3_BF(name,value))
-
-/* Register access macros */
-#define hsmc3_readl(reg) \
- readl((void *)HSMC_BASE + HSMC3_##reg)
-#define hsmc3_writel(reg,value) \
- writel((value), (void *)HSMC_BASE + HSMC3_##reg)
-
-#endif /* __CPU_AT32AP_HSMC3_H__ */
+++ /dev/null
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-#include <div64.h>
-
-#include <asm/errno.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/sysreg.h>
-
-#include <asm/arch/memory-map.h>
-
-#define HANDLER_MASK 0x00ffffff
-#define INTLEV_SHIFT 30
-#define INTLEV_MASK 0x00000003
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* Incremented whenever COUNT reaches 0xffffffff by timer_interrupt_handler */
-volatile unsigned long timer_overflow;
-
-/*
- * Instead of dividing by get_tbclk(), multiply by this constant and
- * right-shift the result by 32 bits.
- */
-static unsigned long tb_factor;
-
-unsigned long get_tbclk(void)
-{
- return gd->cpu_hz;
-}
-
-unsigned long long get_ticks(void)
-{
- unsigned long lo, hi_now, hi_prev;
-
- do {
- hi_prev = timer_overflow;
- lo = sysreg_read(COUNT);
- hi_now = timer_overflow;
- } while (hi_prev != hi_now);
-
- return ((unsigned long long)hi_now << 32) | lo;
-}
-
-void reset_timer(void)
-{
- sysreg_write(COUNT, 0);
- cpu_sync_pipeline(); /* process any pending interrupts */
- timer_overflow = 0;
-}
-
-unsigned long get_timer(unsigned long base)
-{
- u64 now = get_ticks();
-
- now *= tb_factor;
- return (unsigned long)(now >> 32) - base;
-}
-
-void set_timer(unsigned long t)
-{
- unsigned long long ticks = t;
- unsigned long lo, hi, hi_new;
-
- ticks = (ticks * get_tbclk()) / CONFIG_SYS_HZ;
- hi = ticks >> 32;
- lo = ticks & 0xffffffffUL;
-
- do {
- timer_overflow = hi;
- sysreg_write(COUNT, lo);
- hi_new = timer_overflow;
- } while (hi_new != hi);
-}
-
-/*
- * For short delays only. It will overflow after a few seconds.
- */
-void __udelay(unsigned long usec)
-{
- unsigned long cycles;
- unsigned long base;
- unsigned long now;
-
- base = sysreg_read(COUNT);
- cycles = ((usec * (get_tbclk() / 10000)) + 50) / 100;
-
- do {
- now = sysreg_read(COUNT);
- } while ((now - base) < cycles);
-}
-
-static int set_interrupt_handler(unsigned int nr, void (*handler)(void),
- unsigned int priority)
-{
- extern void _evba(void);
- unsigned long intpr;
- unsigned long handler_addr = (unsigned long)handler;
-
- handler_addr -= (unsigned long)&_evba;
-
- if ((handler_addr & HANDLER_MASK) != handler_addr
- || (priority & INTLEV_MASK) != priority)
- return -EINVAL;
-
- intpr = (handler_addr & HANDLER_MASK);
- intpr |= (priority & INTLEV_MASK) << INTLEV_SHIFT;
- writel(intpr, (void *)INTC_BASE + 4 * nr);
-
- return 0;
-}
-
-void timer_init(void)
-{
- extern void timer_interrupt_handler(void);
- u64 tmp;
-
- sysreg_write(COUNT, 0);
-
- tmp = (u64)CONFIG_SYS_HZ << 32;
- tmp += gd->cpu_hz / 2;
- do_div(tmp, gd->cpu_hz);
- tb_factor = (u32)tmp;
-
- if (set_interrupt_handler(0, &timer_interrupt_handler, 3))
- return;
-
- /* For all practical purposes, this gives us an overflow interrupt */
- sysreg_write(COMPARE, 0xffffffff);
-}
+++ /dev/null
-/*
- * Register definitions for Parallel Input/Output Controller
- */
-#ifndef __CPU_AT32AP_PIO2_H__
-#define __CPU_AT32AP_PIO2_H__
-
-/* PIO2 register offsets */
-#define PIO2_PER 0x0000
-#define PIO2_PDR 0x0004
-#define PIO2_PSR 0x0008
-#define PIO2_OER 0x0010
-#define PIO2_ODR 0x0014
-#define PIO2_OSR 0x0018
-#define PIO2_IFER 0x0020
-#define PIO2_IFDR 0x0024
-#define PIO2_ISFR 0x0028
-#define PIO2_SODR 0x0030
-#define PIO2_CODR 0x0034
-#define PIO2_ODSR 0x0038
-#define PIO2_PDSR 0x003c
-#define PIO2_IER 0x0040
-#define PIO2_IDR 0x0044
-#define PIO2_IMR 0x0048
-#define PIO2_ISR 0x004c
-#define PIO2_MDER 0x0050
-#define PIO2_MDDR 0x0054
-#define PIO2_MDSR 0x0058
-#define PIO2_PUDR 0x0060
-#define PIO2_PUER 0x0064
-#define PIO2_PUSR 0x0068
-#define PIO2_ASR 0x0070
-#define PIO2_BSR 0x0074
-#define PIO2_ABSR 0x0078
-#define PIO2_OWER 0x00a0
-#define PIO2_OWDR 0x00a4
-#define PIO2_OWSR 0x00a8
-
-/* Register access macros */
-#define pio2_readl(base,reg) \
- readl((void *)base + PIO2_##reg)
-#define pio2_writel(base,reg,value) \
- writel((value), (void *)base + PIO2_##reg)
-
-#endif /* __CPU_AT32AP_PIO2_H__ */
+++ /dev/null
-/*
- * Copyright (C) 2008 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-
-#include <asm/io.h>
-#include <asm/arch/memory-map.h>
-#include <asm/arch/gpio.h>
-
-void portmux_select_peripheral(void *port, unsigned long pin_mask,
- enum portmux_function func, unsigned long flags)
-{
- /* Both pull-up and pull-down set means buskeeper */
- if (flags & PORTMUX_PULL_DOWN)
- gpio_writel(port, PDERS, pin_mask);
- else
- gpio_writel(port, PDERC, pin_mask);
- if (flags & PORTMUX_PULL_UP)
- gpio_writel(port, PUERS, pin_mask);
- else
- gpio_writel(port, PUERC, pin_mask);
-
- /* Select drive strength */
- if (flags & PORTMUX_DRIVE_LOW)
- gpio_writel(port, ODCR0S, pin_mask);
- else
- gpio_writel(port, ODCR0C, pin_mask);
- if (flags & PORTMUX_DRIVE_HIGH)
- gpio_writel(port, ODCR1S, pin_mask);
- else
- gpio_writel(port, ODCR1C, pin_mask);
-
- /* Select function */
- if (func & PORTMUX_FUNC_B)
- gpio_writel(port, PMR0S, pin_mask);
- else
- gpio_writel(port, PMR0C, pin_mask);
- if (func & PORTMUX_FUNC_C)
- gpio_writel(port, PMR1S, pin_mask);
- else
- gpio_writel(port, PMR1C, pin_mask);
-
- /* Disable GPIO (i.e. enable peripheral) */
- gpio_writel(port, GPERC, pin_mask);
-}
-
-void portmux_select_gpio(void *port, unsigned long pin_mask,
- unsigned long flags)
-{
- /* Both pull-up and pull-down set means buskeeper */
- if (flags & PORTMUX_PULL_DOWN)
- gpio_writel(port, PDERS, pin_mask);
- else
- gpio_writel(port, PDERC, pin_mask);
- if (flags & PORTMUX_PULL_UP)
- gpio_writel(port, PUERS, pin_mask);
- else
- gpio_writel(port, PUERC, pin_mask);
-
- /* Enable open-drain mode if requested */
- if (flags & PORTMUX_OPEN_DRAIN)
- gpio_writel(port, ODMERS, pin_mask);
- else
- gpio_writel(port, ODMERC, pin_mask);
-
- /* Select drive strength */
- if (flags & PORTMUX_DRIVE_LOW)
- gpio_writel(port, ODCR0S, pin_mask);
- else
- gpio_writel(port, ODCR0C, pin_mask);
- if (flags & PORTMUX_DRIVE_HIGH)
- gpio_writel(port, ODCR1S, pin_mask);
- else
- gpio_writel(port, ODCR1C, pin_mask);
-
- /* Select direction and initial pin state */
- if (flags & PORTMUX_DIR_OUTPUT) {
- if (flags & PORTMUX_INIT_HIGH)
- gpio_writel(port, OVRS, pin_mask);
- else
- gpio_writel(port, OVRC, pin_mask);
- gpio_writel(port, ODERS, pin_mask);
- } else {
- gpio_writel(port, ODERC, pin_mask);
- }
-
- /* Enable GPIO */
- gpio_writel(port, GPERS, pin_mask);
-}
+++ /dev/null
-/*
- * Copyright (C) 2006, 2008 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-
-#include <asm/io.h>
-#include <asm/arch/memory-map.h>
-#include <asm/arch/gpio.h>
-
-void portmux_select_peripheral(void *port, unsigned long pin_mask,
- enum portmux_function func, unsigned long flags)
-{
- if (flags & PORTMUX_PULL_UP)
- pio_writel(port, PUER, pin_mask);
- else
- pio_writel(port, PUDR, pin_mask);
-
- switch (func) {
- case PORTMUX_FUNC_A:
- pio_writel(port, ASR, pin_mask);
- break;
- case PORTMUX_FUNC_B:
- pio_writel(port, BSR, pin_mask);
- break;
- }
-
- pio_writel(port, PDR, pin_mask);
-}
-
-void portmux_select_gpio(void *port, unsigned long pin_mask,
- unsigned long flags)
-{
- if (flags & PORTMUX_PULL_UP)
- pio_writel(port, PUER, pin_mask);
- else
- pio_writel(port, PUDR, pin_mask);
-
- if (flags & PORTMUX_OPEN_DRAIN)
- pio_writel(port, MDER, pin_mask);
- else
- pio_writel(port, MDDR, pin_mask);
-
- if (flags & PORTMUX_DIR_OUTPUT) {
- if (flags & PORTMUX_INIT_HIGH)
- pio_writel(port, SODR, pin_mask);
- else
- pio_writel(port, CODR, pin_mask);
- pio_writel(port, OER, pin_mask);
- } else {
- pio_writel(port, ODR, pin_mask);
- }
-
- pio_writel(port, PER, pin_mask);
-}
-
-void pio_set_output_value(unsigned int pin, int value)
-{
- void *port = pio_pin_to_port(pin);
-
- if (!port)
- panic("Invalid GPIO pin %u\n", pin);
-
- __pio_set_output_value(port, pin & 0x1f, value);
-}
-
-int pio_get_input_value(unsigned int pin)
-{
- void *port = pio_pin_to_port(pin);
-
- if (!port)
- panic("Invalid GPIO pin %u\n", pin);
-
- return __pio_get_input_value(port, pin & 0x1f);
-}
+++ /dev/null
-/*
- * Copyright (C) 2005-2008 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <config.h>
-#include <asm/ptrace.h>
-#include <asm/sysreg.h>
-
-#define SYSREG_MMUCR_I_OFFSET 2
-#define SYSREG_MMUCR_S_OFFSET 4
-
-#define SR_INIT (SYSREG_BIT(GM) | SYSREG_BIT(EM) | SYSREG_BIT(M0))
-#define CPUCR_INIT (SYSREG_BIT(BI) | SYSREG_BIT(BE) \
- | SYSREG_BIT(FE) | SYSREG_BIT(RE) \
- | SYSREG_BIT(IBE) | SYSREG_BIT(IEE))
-
- /*
- * To save some space, we use the same entry point for
- * exceptions and reset. This avoids lots of alignment padding
- * since the reset vector is always suitably aligned.
- */
- .section .exception.text, "ax", @progbits
- .global _start
- .global _evba
- .type _start, @function
- .type _evba, @function
-_start:
- .size _start, 0
-_evba:
- .org 0x00
- rjmp unknown_exception /* Unrecoverable exception */
- .org 0x04
- rjmp unknown_exception /* TLB multiple hit */
- .org 0x08
- rjmp unknown_exception /* Bus error data fetch */
- .org 0x0c
- rjmp unknown_exception /* Bus error instruction fetch */
- .org 0x10
- rjmp unknown_exception /* NMI */
- .org 0x14
- rjmp unknown_exception /* Instruction address */
- .org 0x18
- rjmp unknown_exception /* ITLB protection */
- .org 0x1c
- rjmp unknown_exception /* Breakpoint */
- .org 0x20
- rjmp unknown_exception /* Illegal opcode */
- .org 0x24
- rjmp unknown_exception /* Unimplemented instruction */
- .org 0x28
- rjmp unknown_exception /* Privilege violation */
- .org 0x2c
- rjmp unknown_exception /* Floating-point */
- .org 0x30
- rjmp unknown_exception /* Coprocessor absent */
- .org 0x34
- rjmp unknown_exception /* Data Address (read) */
- .org 0x38
- rjmp unknown_exception /* Data Address (write) */
- .org 0x3c
- rjmp unknown_exception /* DTLB Protection (read) */
- .org 0x40
- rjmp unknown_exception /* DTLB Protection (write) */
- .org 0x44
- rjmp unknown_exception /* DTLB Modified */
-
- .org 0x50
- rjmp unknown_exception /* ITLB Miss */
- .org 0x60
- rjmp unknown_exception /* DTLB Miss (read) */
- .org 0x70
- rjmp unknown_exception /* DTLB Miss (write) */
-
- .size _evba, . - _evba
-
- .align 2
- .type unknown_exception, @function
-unknown_exception:
- /* Figure out whether we're handling an exception (Exception
- * mode) or just booting (Supervisor mode). */
- csrfcz SYSREG_M1_OFFSET
- brcc at32ap_cpu_bootstrap
-
- /* This is an exception. Complain. */
- pushm r0-r12
- sub r8, sp, REG_R12 - REG_R0 - 4
- mov r9, lr
- mfsr r10, SYSREG_RAR_EX
- mfsr r11, SYSREG_RSR_EX
- pushm r8-r11
- mfsr r12, SYSREG_ECR
- mov r11, sp
- rcall do_unknown_exception
-1: rjmp 1b
-
- /* The COUNT/COMPARE timer interrupt handler */
- .global timer_interrupt_handler
- .type timer_interrupt_handler,@function
- .align 2
-timer_interrupt_handler:
- /*
- * Increment timer_overflow and re-write COMPARE with 0xffffffff.
- *
- * We're running at interrupt level 3, so we don't need to save
- * r8-r12 or lr to the stack.
- */
- lda.w r8, timer_overflow
- ld.w r9, r8[0]
- mov r10, -1
- mtsr SYSREG_COMPARE, r10
- sub r9, -1
- st.w r8[0], r9
- rete
-
- /*
- * CPU bootstrap after reset is handled here. SoC code may
- * override this in case they need to initialize oscillators,
- * etc.
- */
- .section .text.at32ap_cpu_bootstrap, "ax", @progbits
- .global at32ap_cpu_bootstrap
- .weak at32ap_cpu_bootstrap
- .type at32ap_cpu_bootstrap, @function
- .align 2
-at32ap_cpu_bootstrap:
- /* Reset the Status Register */
- mov r0, lo(SR_INIT)
- orh r0, hi(SR_INIT)
- mtsr SYSREG_SR, r0
-
- /* Reset CPUCR and invalidate the BTB */
- mov r2, CPUCR_INIT
- mtsr SYSREG_CPUCR, r2
-
- /* Flush the caches */
- mov r1, 0
- cache r1[4], 8
- cache r1[0], 0
- sync 0
-
- /* Reset the MMU to default settings */
- mov r0, SYSREG_BIT(MMUCR_S) | SYSREG_BIT(MMUCR_I)
- mtsr SYSREG_MMUCR, r0
-
- /* Internal RAM should not need any initialization. We might
- have to initialize external RAM here if the part doesn't
- have internal RAM (or we may use the data cache) */
-
- /* Jump to cacheable segment */
- lddpc pc, 1f
-
- .align 2
-1: .long at32ap_low_level_init
- .size _start, . - _start
-
- /* Common CPU bootstrap code after oscillator/cache/etc. init */
- .section .text.avr32ap_low_level_init, "ax", @progbits
- .global at32ap_low_level_init
- .type at32ap_low_level_init, @function
- .align 2
-at32ap_low_level_init:
- lddpc sp, sp_init
-
- /* Initialize the GOT pointer */
- lddpc r6, got_init
-3: rsub r6, pc
-
- /* Let's go */
- rjmp board_init_f
-
- .align 2
- .type sp_init,@object
-sp_init:
- .long CONFIG_SYS_INIT_SP_ADDR
-got_init:
- .long 3b - _GLOBAL_OFFSET_TABLE_
-
- /*
- * void relocate_code(new_sp, new_gd, monitor_addr)
- *
- * Relocate the u-boot image into RAM and continue from there.
- * Does not return.
- */
- .section .text.relocate_code,"ax",@progbits
- .global relocate_code
- .type relocate_code,@function
-relocate_code:
- mov sp, r12 /* use new stack */
- mov r12, r11 /* save new_gd */
- mov r11, r10 /* save destination address */
-
- /* copy .text section and flush the cache along the way */
- lda.w r8, _text
- lda.w r9, _etext
- sub lr, r10, r8 /* relocation offset */
-
-1: ldm r8++, r0-r3
- stm r10, r0-r3
- sub r10, -16
- ldm r8++, r0-r3
- stm r10, r0-r3
- sub r10, -16
- cp.w r8, r9
- cache r10[-4], 0x0d /* dcache clean/invalidate */
- cache r10[-4], 0x01 /* icache invalidate */
- brlt 1b
-
- /* flush write buffer */
- sync 0
-
- /* copy data sections */
- lda.w r9, _edata
-1: ld.d r0, r8++
- st.d r10++, r0
- cp.w r8, r9
- brlt 1b
-
- /* zero out .bss */
- mov r0, 0
- mov r1, 0
- lda.w r9, _end
- sub r9, r8
-1: st.d r10++, r0
- sub r9, 8
- brgt 1b
-
- /* jump to RAM */
- sub r0, pc, . - in_ram
- add pc, r0, lr
-
- .align 2
-in_ram:
- /* find the new GOT and relocate it */
- lddpc r6, got_init_reloc
-3: rsub r6, pc
- mov r8, r6
- lda.w r9, _egot
- lda.w r10, _got
- sub r9, r10
-1: ld.w r0, r8[0]
- add r0, lr
- st.w r8++, r0
- sub r9, 4
- brgt 1b
-
- /* Move the exception handlers */
- mfsr r2, SYSREG_EVBA
- add r2, lr
- mtsr SYSREG_EVBA, r2
-
- /* Do the rest of the initialization sequence */
- call board_init_r
-
- .align 2
-got_init_reloc:
- .long 3b - _GLOBAL_OFFSET_TABLE_
-
- .size relocate_code, . - relocate_code
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