+++ /dev/null
-/*
- * Copyright (C) 2007 Sascha Hauer, Pengutronix
- * Copyright (C) 2008,2009 Eric Jarrige <jorasse@users.sourceforge.net>
- * Copyright (C) 2009 Ilya Yanok <yanok@emcraft.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/imx-regs.h>
-#include <asm/gpio.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-int board_init(void)
-{
-#if defined(CONFIG_SYS_NAND_LARGEPAGE)
- struct system_control_regs *sc_regs =
- (struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
-#endif
-
- gd->bd->bi_arch_number = MACH_TYPE_IMX27LITE;
- gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
-
-#ifdef CONFIG_MXC_UART
- mx27_uart1_init_pins();
-#endif
-#ifdef CONFIG_FEC_MXC
- mx27_fec_init_pins();
- imx_gpio_mode((GPIO_PORTC | GPIO_OUT | GPIO_PUEN | GPIO_GPIO | 31));
- gpio_set_value(GPIO_PORTC | 31, 1);
-#endif
-#ifdef CONFIG_MXC_MMC
-#if defined(CONFIG_MAGNESIUM)
- mx27_sd1_init_pins();
-#else
- mx27_sd2_init_pins();
-#endif
-#endif
-
-#if defined(CONFIG_SYS_NAND_LARGEPAGE)
- /*
- * set in FMCR NF_FMS Bit(5) to 1
- * (NAND Flash with 2 Kbyte page size)
- */
- writel(readl(&sc_regs->fmcr) | (1 << 5), &sc_regs->fmcr);
-#endif
- return 0;
-}
-
-int dram_init(void)
-{
- /* dram_init must store complete ramsize in gd->ram_size */
- gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
- PHYS_SDRAM_1_SIZE);
- return 0;
-}
-
-void dram_init_banksize(void)
-{
- gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
- gd->bd->bi_dram[0].size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
- PHYS_SDRAM_1_SIZE);
-#if CONFIG_NR_DRAM_BANKS > 1
- gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
- gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2,
- PHYS_SDRAM_2_SIZE);
-#endif
-}
-
-int checkboard(void)
-{
- puts("Board: ");
- puts(CONFIG_BOARDNAME);
- return 0;
-}
+++ /dev/null
-/*
- * For clock initialization, see chapter 3 of the "MCIMX27 Multimedia
- * Applications Processor Reference Manual, Rev. 0.2".
- *
- * (C) Copyright 2008 Eric Jarrige <eric.jarrige@armadeus.org>
- * (C) Copyright 2009 Ilya Yanok <yanok@emcraft.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-
-#include <config.h>
-#include <asm/macro.h>
-#include <asm/arch/imx-regs.h>
-#include <generated/asm-offsets.h>
-
-SOC_ESDCTL_BASE_W: .word IMX_ESD_BASE
-SOC_SI_ID_REG_W: .word IMX_SYSTEM_CTL_BASE
-SDRAM_ESDCFG_T1_W: .word SDRAM_ESDCFG_REGISTER_VAL(0)
-SDRAM_ESDCFG_T2_W: .word SDRAM_ESDCFG_REGISTER_VAL(3)
-SDRAM_PRECHARGE_CMD_W: .word (ESDCTL_SDE | ESDCTL_SMODE_PRECHARGE | \
- ESDCTL_ROW13 | ESDCTL_COL10)
-SDRAM_AUTOREF_CMD_W: .word (ESDCTL_SDE | ESDCTL_SMODE_AUTO_REF | \
- ESDCTL_ROW13 | ESDCTL_COL10)
-SDRAM_LOADMODE_CMD_W: .word (ESDCTL_SDE | ESDCTL_SMODE_LOAD_MODE | \
- ESDCTL_ROW13 | ESDCTL_COL10)
-SDRAM_NORMAL_CMD_W: .word SDRAM_ESDCTL_REGISTER_VAL
-
-.macro init_aipi
- /*
- * setup AIPI1 and AIPI2
- */
- write32 AIPI1_PSR0, AIPI1_PSR0_VAL
- write32 AIPI1_PSR1, AIPI1_PSR1_VAL
- write32 AIPI2_PSR0, AIPI2_PSR0_VAL
- write32 AIPI2_PSR1, AIPI2_PSR1_VAL
-
-.endm /* init_aipi */
-
-.macro init_clock
- ldr r0, =CSCR
- /* disable MPLL/SPLL first */
- ldr r1, [r0]
- bic r1, r1, #(CSCR_MPEN|CSCR_SPEN)
- str r1, [r0]
-
- write32 MPCTL0, MPCTL0_VAL
- write32 SPCTL0, SPCTL0_VAL
-
- write32 CSCR, CSCR_VAL | CSCR_MPLL_RESTART | CSCR_SPLL_RESTART
-
- /*
- * add some delay here
- */
- wait_timer 0x1000
-
- /* peripheral clock divider */
- write32 PCDR0, PCDR0_VAL
- write32 PCDR1, PCDR1_VAL
-
- /* Configure PCCR0 and PCCR1 */
- write32 PCCR0, PCCR0_VAL
- write32 PCCR1, PCCR1_VAL
-
-.endm /* init_clock */
-
-.macro sdram_init
- ldr r0, SOC_ESDCTL_BASE_W
- mov r2, #PHYS_SDRAM_1
-
- /* Do initial reset */
- mov r1, #ESDMISC_MDDR_DL_RST
- str r1, [r0, #ESDMISC_ROF]
-
- /* Hold for more than 200ns */
- wait_timer 0x10000
-
- /* Activate LPDDR iface */
- mov r1, #ESDMISC_MDDREN
- str r1, [r0, #ESDMISC_ROF]
-
- /* Check The chip version TO1 or TO2 */
- ldr r1, SOC_SI_ID_REG_W
- ldr r1, [r1]
- ands r1, r1, #0xF0000000
- /* add Latency on CAS only for TO2 */
- ldreq r1, SDRAM_ESDCFG_T2_W
- ldrne r1, SDRAM_ESDCFG_T1_W
- str r1, [r0, #ESDCFG0_ROF]
-
- /* Run initialization sequence */
- ldr r1, SDRAM_PRECHARGE_CMD_W
- str r1, [r0, #ESDCTL0_ROF]
- ldr r1, [r2, #SDRAM_ALL_VAL]
-
- ldr r1, SDRAM_AUTOREF_CMD_W
- str r1, [r0, #ESDCTL0_ROF]
- ldr r1, [r2, #SDRAM_ALL_VAL]
- ldr r1, [r2, #SDRAM_ALL_VAL]
-
- ldr r1, SDRAM_LOADMODE_CMD_W
- str r1, [r0, #ESDCTL0_ROF]
- ldrb r1, [r2, #SDRAM_MODE_REGISTER_VAL]
- add r3, r2, #SDRAM_EXT_MODE_REGISTER_VAL
- ldrb r1, [r3]
-
- ldr r1, SDRAM_NORMAL_CMD_W
- str r1, [r0, #ESDCTL0_ROF]
-
-#if (CONFIG_NR_DRAM_BANKS > 1)
- /* 2nd sdram */
- mov r2, #PHYS_SDRAM_2
-
- /* Check The chip version TO1 or TO2 */
- ldr r1, SOC_SI_ID_REG_W
- ldr r1, [r1]
- ands r1, r1, #0xF0000000
- /* add Latency on CAS only for TO2 */
- ldreq r1, SDRAM_ESDCFG_T2_W
- ldrne r1, SDRAM_ESDCFG_T1_W
- str r1, [r0, #ESDCFG1_ROF]
-
- /* Run initialization sequence */
- ldr r1, SDRAM_PRECHARGE_CMD_W
- str r1, [r0, #ESDCTL1_ROF]
- ldr r1, [r2, #SDRAM_ALL_VAL]
-
- ldr r1, SDRAM_AUTOREF_CMD_W
- str r1, [r0, #ESDCTL1_ROF]
- ldr r1, [r2, #SDRAM_ALL_VAL]
- ldr r1, [r2, #SDRAM_ALL_VAL]
-
- ldr r1, SDRAM_LOADMODE_CMD_W
- str r1, [r0, #ESDCTL1_ROF]
- ldrb r1, [r2, #SDRAM_MODE_REGISTER_VAL]
- add r3, r2, #SDRAM_EXT_MODE_REGISTER_VAL
- ldrb r1, [r3]
-
- ldr r1, SDRAM_NORMAL_CMD_W
- str r1, [r0, #ESDCTL1_ROF]
-#endif /* CONFIG_NR_DRAM_BANKS > 1 */
-
-.endm /* sdram_init */
-
-.globl lowlevel_init
-lowlevel_init:
-
- mov r10, lr
-
- init_aipi
-
- init_clock
-
- sdram_init
-
- mov pc,r10
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