@$(MKCONFIG) EVB64260 ppc 74xx_7xx evb64260
mpc7448hpc2_config: unconfig
- @$(MKCONFIG) $(@:_config=) ppc 74xx_7xx mpc7448hpc2
+ @$(MKCONFIG) $(@:_config=) ppc 74xx_7xx mpc7448hpc2 freescale
P3G4_config: unconfig
@$(MKCONFIG) $(@:_config=) ppc 74xx_7xx evb64260
--- /dev/null
+#
+# (C) Copyright 2000
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 = $(obj)lib$(BOARD).a
+
+COBJS := $(BOARD).o tsi108_init.o
+SOBJS := asm_init.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+.PHONY: distclean
+distclean: clean
+ rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude ($obj).depend
+
+#########################################################################
--- /dev/null
+/*
+ * (C) Copyright 2004-05; Tundra Semiconductor Corp.
+ *
+ * Added automatic detect of SDC settings
+ * Copyright (c) 2005 Freescale Semiconductor, Inc.
+ * Maintainer tie-fei.zang@freescale.com
+ *
+ * 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
+ */
+
+/*
+ * FILENAME: asm_init.s
+ *
+ * Originator: Alex Bounine
+ *
+ * DESCRIPTION:
+ * Initialization code for the Tundra Tsi108 bridge chip
+ *
+ */
+
+#include <config.h>
+#include <version.h>
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+#include <asm/processor.h>
+
+#include <tsi108.h>
+
+/*
+ * Build Configuration Options
+ */
+
+/* #define DISABLE_PBM disables usage of PB Master */
+/* #define SDC_HARDCODED_INIT config SDRAM controller with hardcoded values */
+/* #define SDC_AUTOPRECH_EN enable SDRAM auto precharge */
+
+/*
+ * Hardcoded SDC settings
+ */
+
+#ifdef SDC_HARDCODED_INIT
+
+/* Micron MT9HTF6472AY-40EA1 : Unbuffered, 512MB, 400, CL3, Single Rank */
+
+#define VAL_SD_REFRESH (0x61A)
+#define VAL_SD_TIMING (0x0308336b)
+#define VAL_SD_D0_CTRL (0x07100021) /* auto-precharge disabled */
+#define VAL_SD_D0_BAR (0x0FE00000) /* 512MB @ 0x00000000 */
+#define VAL_SD_D1_CTRL (0x07100021) /* auto-precharge disabled */
+#define VAL_SD_D1_BAR (0x0FE00200) /* 512MB @ 0x20000000 */
+
+#endif /* SDC_HARDCODED_INIT */
+
+/*
+ CPU Configuration:
+
+ CPU Address and Data Parity enables.
+
+#define CPU_AP
+#define CPU_DP
+*/
+
+/*
+ * Macros
+ * !!! Attention !!! Macros LOAD_PTR, LOAD_U32 and LOAD_MEM defined below are
+ * expected to work correctly for the CSR space within 32KB range.
+ *
+ * LOAD_PTR and LOAD_U32 - load specified register with a 32 bit constant.
+ * These macros are absolutely identical except their names. This difference
+ * is provided intentionally for better readable code.
+ */
+
+#define LOAD_PTR(reg,const32) \
+ addis reg,r0,const32@h; ori reg,reg,const32@l
+
+#define LOAD_U32(reg,const32) \
+ addis reg,r0,const32@h; ori reg,reg,const32@l
+
+/* LOADMEM initializes a register with the contents of a specified 32-bit
+ * memory location, usually a CSR value.
+ */
+
+#define LOAD_MEM(reg,addr32) \
+ addis reg,r0,addr32@ha; lwz reg,addr32@l(reg)
+
+#ifndef SDC_HARDCODED_INIT
+sdc_clk_sync:
+ /* MHz: 0,0,183,100,133,167,200,233 */
+ .long 0, 0, 6, 10, 8, 6, 5, 4 /* nSec */
+#endif
+
+/*
+ * board_asm_init() - early initialization function. Coded to be portable to
+ * dual-CPU configuration.
+ * Checks CPU number and performs board HW initialization if called for CPU0.
+ * Registers used: r3,r4,r5,r6,r19,r29
+ *
+ * NOTE: For dual-CPU configuration only CPU0 is allowed to configure Tsi108
+ * and the rest of the board. Current implementation demonstrates two
+ * possible ways to identify CPU number:
+ * - for MPC74xx platform: uses MSSCR0[ID] bit as defined in UM.
+ * - for PPC750FX/GX boards: uses WHO_AM_I bit reported by Tsi108.
+ */
+
+ .globl board_asm_init
+board_asm_init:
+ mflr r19 /* Save LR to be able return later. */
+ bl icache_enable /* Enable icache to reduce reads from flash. */
+
+/* Initialize pointer to Tsi108 register space */
+
+ LOAD_PTR(r29,CFG_TSI108_CSR_RST_BASE)/* r29 - pointer to tsi108 CSR space */
+ ori r4,r29,TSI108_PB_REG_OFFSET
+
+/* Check Processor Version Number */
+
+ mfspr r3, PVR
+ rlwinm r3,r3,16,16,23 /* get ((Processor Version Number) & 0xFF00) */
+
+ cmpli 0,0,r3,0x8000 /* MPC74xx */
+ bne cont_brd_init
+
+ /*
+ * For MPC744x/5x enable extended BATs[4-7]
+ * Sri: Set HIGH_BAT_EN and XBSEN, and SPD =1
+ * to disable prefetch
+ */
+
+ mfspr r5, HID0
+ oris r5, r5, 0x0080 /* Set HID0[HIGH_BAT_EN] bit #8 */
+ ori r5, r5, 0x0380 /* Set SPD,XBSEN,SGE bits #22,23,24 */
+ mtspr HID0, r5
+ isync
+ sync
+
+ /* Adding code to disable external interventions in MPX bus mode */
+ mfspr r3, 1014
+ oris r3, r3, 0x0100 /* Set the EIDIS bit in MSSCR0: bit 7 */
+ mtspr 1014, r3
+ isync
+ sync
+
+ /* Sri: code to enable FP unit */
+ mfmsr r3
+ ori r3, r3, 0x2000
+ mtmsr r3
+ isync
+ sync
+
+ /* def CONFIG_DUAL_CPU
+ * For MPC74xx processor, use MSSCR0[ID] bit to identify CPU number.
+ */
+#if(1)
+ mfspr r3,1014 /* read MSSCR0 */
+ rlwinm. r3,r3,27,31,31 /* get processor ID number */
+ mtspr SPRN_PIR,r3 /* Save CPU ID */
+ sync
+ bne init_done
+ b do_tsi108_init
+
+cont_brd_init:
+
+ /* An alternative method of checking the processor number (in addition
+ * to configuration using MSSCR0[ID] bit on MPC74xx).
+ * Good for IBM PPC750FX/GX.
+ */
+
+ lwz r3,PB_BUS_MS_SELECT(r4) /* read PB_ID register */
+ rlwinm. r3,r3,24,31,31 /* get processor ID number */
+ bne init_done
+#else
+
+cont_brd_init:
+
+#endif /* CONFIG_DUAL_CPU */
+
+ /* Initialize Tsi108 chip */
+
+do_tsi108_init:
+
+ /*
+ * Adjust HLP/Flash parameters. By default after reset the HLP port is
+ * set to support slow devices. Better performance can be achived when
+ * an optimal parameters are used for specific EPROM device.
+ * NOTE: This should be performed ASAP for the emulation platform
+ * because it has 5MHz HLP clocking.
+ */
+
+#ifdef CONFIG_TSI108EMU
+ ori r4,r29,TSI108_HLP_REG_OFFSET
+ LOAD_U32(r5,0x434422c0)
+ stw r5,0x08(r4) /* set HLP B0_CTRL0 */
+ sync
+ LOAD_U32(r5,0xd0012000)
+ stw r5,0x0c(r4) /* set HLP B0_CTRL1 */
+ sync
+#endif
+
+ /* Initialize PB interface. */
+
+ ori r4,r29,TSI108_PB_REG_OFFSET
+
+#if (CFG_TSI108_CSR_BASE != CFG_TSI108_CSR_RST_BASE)
+ /* Relocate (if required) Tsi108 registers. Set new value for
+ * PB_REG_BAR:
+ * Note we are in the 32-bit address mode.
+ */
+ LOAD_U32(r5,(CFG_TSI108_CSR_BASE | 0x01)) /* PB_REG_BAR: BA + EN */
+ stw r5,PB_REG_BAR(r4)
+ andis. r29,r5,0xFFFF
+ sync
+ ori r4,r29,TSI108_PB_REG_OFFSET
+#endif
+
+ /* Set PB Slave configuration register */
+
+ LOAD_U32(r5,0x00002481) /* PB_SCR: TEA enabled,AACK delay = 1 */
+ lwz r3, PB_RSR(r4) /* get PB bus mode */
+ xori r3,r3,0x0001 /* mask PB_BMODE: r3 -> (0 = 60X, 1 = MPX) */
+ rlwimi r5,r3,14,17,17 /* for MPX: set DTI_MODE bit */
+ stw r5,PB_SCR(r4)
+ sync
+
+ /* Configure PB Arbiter */
+
+ lwz r5,PB_ARB_CTRL(r4) /* Read PB Arbiter Control Register */
+ li r3, 0x00F0 /* ARB_PIPELINE_DEP mask */
+#ifdef DISABLE_PBM
+ ori r3,r3,0x1000 /* add PBM_EN to clear (enabled by default) */
+#endif
+ andc r5,r5,r3 /* Clear the masked bit fields */
+ ori r5,r5,0x0001 /* Set pipeline depth */
+ stw r5,PB_ARB_CTRL(r4)
+
+#if (0) /* currently using the default settings for PBM after reset */
+ LOAD_U32(r5,0x) /* value for PB_MCR */
+ stw r5,PB_MCR(r4)
+ sync
+
+ LOAD_U32(r5,0x) /* value for PB_MCMD */
+ stw r5,PB_MCMD(r4)
+ sync
+#endif
+
+ /* Disable or enable PVT based on processor bus frequency
+ * 1. Read CG_PWRUP_STATUS register field bits 18,17,16
+ * 2. See if the value is < or > 133mhz (18:16 = 100)
+ * 3. If > enable PVT
+ */
+
+ LOAD_U32(r3,0xC0002234)
+ lwz r3,0(r3)
+ rlwinm r3,r3,16,29,31
+
+ cmpi 0,0,r3,0x0004
+ bgt sdc_init
+
+#ifndef CONFIG_TSI108EMU
+ /* FIXME: Disable PB calibration control for any real Tsi108 board */
+ li r5,0x0101 /* disable calibration control */
+ stw r5,PB_PVT_CTRL2(r4)
+ sync
+#endif
+
+ /* Initialize SDRAM controller. */
+
+sdc_init:
+
+#ifndef SDC_HARDCODED_INIT
+ /* get SDC clock prior doing sdram controller autoconfig */
+ ori r4,r29,TSI108_CLK_REG_OFFSET /* r4 - ptr to CG registers */
+ lwz r3, CG_PWRUP_STATUS(r4) /* get CG configuration */
+ rlwinm r3,r3,12,29,31 /* r3 - SD clk */
+ lis r5,sdc_clk_sync@h
+ ori r5,r5,sdc_clk_sync@l
+ /* Sri: At this point check if r3 = 001. If yes,
+ * the memory frequency should be same as the
+ * MPX bus frequency
+ */
+ cmpi 0,0,r3,0x0001
+ bne get_nsec
+ lwz r6, CG_PWRUP_STATUS(r4)
+ rlwinm r6,r6,16,29,31
+ mr r3,r6
+
+get_nsec:
+ rlwinm r3,r3,2,0,31
+ lwzx r9,r5,r3 /* get SD clk rate in nSec */
+ /* ATTN: r9 will be used by SPD routine */
+#endif /* !SDC_HARDCODED_INIT */
+
+ ori r4,r29,TSI108_SD_REG_OFFSET /* r4 - ptr to SDRAM registers */
+
+ /* Initialize SDRAM controller. SDRAM Size = 512MB, One DIMM. */
+
+ LOAD_U32(r5,0x00)
+ stw r5,SD_INT_ENABLE(r4) /* Ensure that interrupts are disabled */
+#ifdef ENABLE_SDRAM_ECC
+ li r5, 0x01
+#endif /* ENABLE_SDRAM_ECC */
+ stw r5,SD_ECC_CTRL(r4) /* Enable/Disable ECC */
+ sync
+
+#ifdef SDC_HARDCODED_INIT /* config sdram controller with hardcoded values */
+
+ /* First read the CG_PWRUP_STATUS register to get the
+ * memory speed from bits 22,21,20
+ */
+
+ LOAD_U32(r3,0xC0002234)
+ lwz r3,0(r3)
+ rlwinm r3,r3,12,29,31
+
+ /* Now first check for 166, then 200, or default */
+
+ cmpi 0,0,r3,0x0005
+ bne check_for_200mhz
+
+ /* set values for 166 Mhz memory speed
+ * Set refresh rate and timing parameters
+ */
+ LOAD_U32(r5,0x00000515)
+ stw r5,SD_REFRESH(r4)
+ LOAD_U32(r5,0x03073368)
+ stw r5,SD_TIMING(r4)
+ sync
+
+ /* Initialize DIMM0 control and BAR registers */
+ LOAD_U32(r5,VAL_SD_D0_CTRL) /* auto-precharge disabled */
+#ifdef SDC_AUTOPRECH_EN
+ oris r5,r5,0x0001 /* set auto precharge EN bit */
+#endif
+ stw r5,SD_D0_CTRL(r4)
+ LOAD_U32(r5,VAL_SD_D0_BAR)
+ stw r5,SD_D0_BAR(r4)
+ sync
+
+ /* Initialize DIMM1 control and BAR registers
+ * (same as dimm 0, next 512MB, disabled)
+ */
+ LOAD_U32(r5,VAL_SD_D1_CTRL) /* auto-precharge disabled */
+#ifdef SDC_AUTOPRECH_EN
+ oris r5,r5,0x0001 /* set auto precharge EN bit */
+#endif
+ stw r5,SD_D1_CTRL(r4)
+ LOAD_U32(r5,VAL_SD_D1_BAR)
+ stw r5,SD_D1_BAR(r4)
+ sync
+
+ b sdc_init_done
+
+check_for_200mhz:
+
+ cmpi 0,0,r3,0x0006
+ bne set_default_values
+
+ /* set values for 200Mhz memory speed
+ * Set refresh rate and timing parameters
+ */
+ LOAD_U32(r5,0x0000061a)
+ stw r5,SD_REFRESH(r4)
+ LOAD_U32(r5,0x03083348)
+ stw r5,SD_TIMING(r4)
+ sync
+
+ /* Initialize DIMM0 control and BAR registers */
+ LOAD_U32(r5,VAL_SD_D0_CTRL) /* auto-precharge disabled */
+#ifdef SDC_AUTOPRECH_EN
+ oris r5,r5,0x0001 /* set auto precharge EN bit */
+#endif
+ stw r5,SD_D0_CTRL(r4)
+ LOAD_U32(r5,VAL_SD_D0_BAR)
+ stw r5,SD_D0_BAR(r4)
+ sync
+
+ /* Initialize DIMM1 control and BAR registers
+ * (same as dimm 0, next 512MB, disabled)
+ */
+ LOAD_U32(r5,VAL_SD_D1_CTRL) /* auto-precharge disabled */
+#ifdef SDC_AUTOPRECH_EN
+ oris r5,r5,0x0001 /* set auto precharge EN bit */
+#endif
+ stw r5,SD_D1_CTRL(r4)
+ LOAD_U32(r5,VAL_SD_D1_BAR)
+ stw r5,SD_D1_BAR(r4)
+ sync
+
+ b sdc_init_done
+
+set_default_values:
+
+ /* Set refresh rate and timing parameters */
+ LOAD_U32(r5,VAL_SD_REFRESH)
+ stw r5,SD_REFRESH(r4)
+ LOAD_U32(r5,VAL_SD_TIMING)
+ stw r5,SD_TIMING(r4)
+ sync
+
+ /* Initialize DIMM0 control and BAR registers */
+ LOAD_U32(r5,VAL_SD_D0_CTRL) /* auto-precharge disabled */
+#ifdef SDC_AUTOPRECH_EN
+ oris r5,r5,0x0001 /* set auto precharge EN bit */
+#endif
+ stw r5,SD_D0_CTRL(r4)
+ LOAD_U32(r5,VAL_SD_D0_BAR)
+ stw r5,SD_D0_BAR(r4)
+ sync
+
+ /* Initialize DIMM1 control and BAR registers
+ * (same as dimm 0, next 512MB, disabled)
+ */
+ LOAD_U32(r5,VAL_SD_D1_CTRL) /* auto-precharge disabled */
+#ifdef SDC_AUTOPRECH_EN
+ oris r5,r5,0x0001 /* set auto precharge EN bit */
+#endif
+ stw r5,SD_D1_CTRL(r4)
+ LOAD_U32(r5,VAL_SD_D1_BAR)
+ stw r5,SD_D1_BAR(r4)
+ sync
+#else /* !SDC_HARDCODED_INIT */
+ bl tsi108_sdram_spd /* automatically detect SDC settings */
+#endif /* SDC_HARDCODED_INIT */
+
+sdc_init_done:
+
+#ifdef DISABLE_PBM
+ LOAD_U32(r5,0x00000030) /* PB_EN + OCN_EN */
+#else
+ LOAD_U32(r5,0x00000230) /* PB_EN + OCN_EN + PB/OCN=80/20 */
+#endif /* DISABLE_PBM */
+
+#ifdef CONFIG_TSI108EMU
+ oris r5,r5,0x0010 /* set EMULATION_MODE bit */
+#endif
+
+ stw r5,SD_CTRL(r4)
+ eieio
+ sync
+
+ /* Enable SDRAM access */
+
+ oris r5,r5,0x8000 /* start SDC: set SD_CTRL[ENABLE] bit */
+ stw r5,SD_CTRL(r4)
+ sync
+
+wait_init_complete:
+ lwz r5,SD_STATUS(r4)
+ andi. r5,r5,0x0001
+ /* wait until SDRAM initialization is complete */
+ beq wait_init_complete
+
+ /* Map SDRAM into the processor bus address space */
+
+ ori r4,r29,TSI108_PB_REG_OFFSET
+
+ /* Setup BARs associated with direct path PB<->SDRAM */
+
+ /* PB_SDRAM_BAR1:
+ * provides a direct path to the main system memory (cacheable SDRAM)
+ */
+
+ /* BA=0,Size=512MB, ENable, No Addr.Translation */
+ LOAD_U32(r5, 0x00000011)
+ stw r5,PB_SDRAM_BAR1(r4)
+ sync
+
+ /* Make sure that PB_SDRAM_BAR1 decoder is set
+ * (to allow following immediate read from SDRAM)
+ */
+ lwz r5,PB_SDRAM_BAR1(r4)
+ sync
+
+ /* PB_SDRAM_BAR2:
+ * provides non-cacheable alias (via the direct path) to main
+ * system memory.
+ * Size = 512MB, ENable, Addr.Translation - ON,
+ * BA = 0x0_40000000, TA = 0x0_00000000
+ */
+
+ LOAD_U32(r5, 0x40010011)
+ stw r5,PB_SDRAM_BAR2(r4)
+ sync
+
+ /* Make sure that PB_SDRAM_BAR2 decoder is set
+ * (to allow following immediate read from SDRAM)
+ */
+ lwz r5,PB_SDRAM_BAR2(r4)
+ sync
+
+init_done:
+
+ /* All done. Restore LR and return. */
+ mtlr r19
+ blr
+
+#if (0)
+ /*
+ * init_cpu1
+ * This routine enables CPU1 on the dual-processor system.
+ * Now there is only one processor in the system
+ */
+
+ .global enable_cpu1
+enable_cpu1:
+
+ lis r3,Tsi108_Base@ha /* Get Grendel CSR Base Addr */
+ addi r3,r3,Tsi108_Base@l
+ lwz r3,0(r3) /* R3 = CSR Base Addr */
+ ori r4,r3,TSI108_PB_REG_OFFSET
+ lwz r3,PB_ARB_CTRL(r4) /* Read PB Arbiter Control Register */
+ ori r3,r3,0x0200 /* Set M1_EN bit */
+ stw r3,PB_ARB_CTRL(r4)
+
+ blr
+#endif
+
+ /*
+ * enable_EI
+ * Enable CPU core external interrupt
+ */
+
+ .global enable_EI
+enable_EI:
+ mfmsr r3
+ ori r3,r3,0x8000 /* set EE bit */
+ mtmsr r3
+ blr
+
+ /*
+ * disable_EI
+ * Disable CPU core external interrupt
+ */
+
+ .global disable_EI
+disable_EI:
+ mfmsr r3
+ li r4,-32768 /* aka "li r4,0x8000" */
+ andc r3,r3,r4 /* clear EE bit */
+ mtmsr r3
+ blr
+
+#ifdef ENABLE_SDRAM_ECC
+ /* enables SDRAM ECC */
+
+ .global enable_ECC
+enable_ECC:
+ ori r4,r29,TSI108_SD_REG_OFFSET
+ lwz r3,SD_ECC_CTRL(r4) /* Read SDRAM ECC Control Register */
+ ori r3,r3,0x0001 /* Set ECC_EN bit */
+ stw r3,SD_ECC_CTRL(r4)
+ blr
+
+ /*
+ * clear_ECC_err
+ * Clears all pending SDRAM ECC errors
+ * (normally after SDRAM scrubbing/initialization)
+ */
+
+ .global clear_ECC_err
+clear_ECC_err:
+ ori r4,r29,TSI108_SD_REG_OFFSET
+ ori r3,r0,0x0030 /* ECC_UE_INT + ECC_CE_INT bits */
+ stw r3,SD_INT_STATUS(r4)
+ blr
+
+#endif /* ENABLE_SDRAM_ECC */
+
+#ifndef SDC_HARDCODED_INIT
+
+ /* SDRAM SPD Support */
+#define SD_I2C_CTRL1 (0x400)
+#define SD_I2C_CTRL2 (0x404)
+#define SD_I2C_RD_DATA (0x408)
+#define SD_I2C_WR_DATA (0x40C)
+
+ /*
+ * SDRAM SPD Support Macros
+ */
+
+#define SPD_DIMM0 (0x00000100)
+#define SPD_DIMM1 (0x00000200) /* SPD_DIMM1 was 0x00000000 */
+
+#define SPD_RDIMM (0x01)
+#define SPD_UDIMM (0x02)
+
+#define SPD_CAS_3 0x8
+#define SPD_CAS_4 0x10
+#define SPD_CAS_5 0x20
+
+#define ERR_NO_DIMM_FOUND (0xdb0)
+#define ERR_TRAS_FAIL (0xdb1)
+#define ERR_TRCD_FAIL (0xdb2)
+#define ERR_TRP_FAIL (0xdb3)
+#define ERR_TWR_FAIL (0xdb4)
+#define ERR_UNKNOWN_PART (0xdb5)
+#define ERR_NRANK_INVALID (0xdb6)
+#define ERR_DIMM_SIZE (0xdb7)
+#define ERR_ADDR_MODE (0xdb8)
+#define ERR_RFRSH_RATE (0xdb9)
+#define ERR_DIMM_TYPE (0xdba)
+#define ERR_CL_VALUE (0xdbb)
+#define ERR_TRFC_FAIL (0xdbc)
+
+/* READ_SPD requirements:
+ * byte - byte address in SPD device (0 - 255)
+ * r3 = will return data read from I2C Byte location
+ * r4 - unchanged (SDC base addr)
+ * r5 - clobbered in routine (I2C status)
+ * r10 - number of DDR slot where first SPD device is detected
+ */
+
+#define READ_SPD(byte_num) \
+ addis r3, 0, byte_num@l; \
+ or r3, r3, r10; \
+ ori r3, r3, 0x0A; \
+ stw r3, SD_I2C_CTRL1(r4); \
+ li r3, I2C_CNTRL2_START; \
+ stw r3, SD_I2C_CTRL2(r4); \
+ eieio; \
+ sync; \
+ li r3, 0x100; \
+1:; \
+ addic. r3, r3, -1; \
+ bne 1b; \
+2:; \
+ lwz r5, SD_I2C_CTRL2(r4); \
+ rlwinm. r3,r5,0,23,23; \
+ bne 2b; \
+ rlwinm. r3,r5,0,3,3; \
+ lwz r3,SD_I2C_RD_DATA(r4)
+
+#define SPD_MIN_RFRSH (0x80)
+#define SPD_MAX_RFRSH (0x85)
+
+refresh_rates: /* in nSec */
+ .long 15625 /* Normal (0x80) */
+ .long 3900 /* Reduced 0.25x (0x81) */
+ .long 7800 /* Reduced 0.5x (0x82) */
+ .long 31300 /* Extended 2x (0x83) */
+ .long 62500 /* Extended 4x (0x84) */
+ .long 125000 /* Extended 8x (0x85) */
+
+/*
+ * tsi108_sdram_spd
+ *
+ * Inittializes SDRAM Controller using DDR2 DIMM Serial Presence Detect data
+ * Uses registers: r4 - SDC base address (not changed)
+ * r9 - SDC clocking period in nSec
+ * Changes registers: r3,r5,r6,r7,r8,r10,r11
+ */
+
+tsi108_sdram_spd:
+
+ li r10,SPD_DIMM0
+ xor r11,r11,r11 /* DIMM Base Address: starts from 0 */
+
+do_first_dimm:
+
+ /* Program Refresh Rate Register */
+
+ READ_SPD(12) /* get Refresh Rate */
+ beq check_next_slot
+ li r5, ERR_RFRSH_RATE
+ cmpi 0,0,r3,SPD_MIN_RFRSH
+ ble spd_fail
+ cmpi 0,0,r3,SPD_MAX_RFRSH
+ bgt spd_fail
+ addi r3,r3,-SPD_MIN_RFRSH
+ rlwinm r3,r3,2,0,31
+ lis r5,refresh_rates@h
+ ori r5,r5,refresh_rates@l
+ lwzx r5,r5,r3 /* get refresh rate in nSec */
+ divwu r5,r5,r9 /* calculate # of SDC clocks */
+ stw r5,SD_REFRESH(r4) /* Set refresh rate */
+ sync
+
+ /* Program SD Timing Register */
+
+ li r7, 0 /* clear r7 prior parameter collection */
+
+ READ_SPD(20) /* get DIMM type: Registered or Unbuffered */
+ beq spd_read_fail
+ li r5, ERR_DIMM_TYPE
+ cmpi 0,0,r3,SPD_UDIMM
+ beq do_cl
+ cmpi 0,0,r3,SPD_RDIMM
+ bne spd_fail
+ oris r7,r7,0x1000 /* set SD_TIMING[DIMM_TYPE] bit */
+
+do_cl:
+ READ_SPD(18) /* Get CAS Latency */
+ beq spd_read_fail
+ li r5,ERR_CL_VALUE
+ andi. r6,r3,SPD_CAS_3
+ beq cl_4
+ li r6,3
+ b set_cl
+cl_4:
+ andi. r6,r3,SPD_CAS_4
+ beq cl_5
+ li r6,4
+ b set_cl
+cl_5:
+ andi. r6,r3,SPD_CAS_5
+ beq spd_fail
+ li r6,5
+set_cl:
+ rlwimi r7,r6,24,5,7
+
+ READ_SPD(30) /* Get tRAS */
+ beq spd_read_fail
+ divwu r6,r3,r9
+ mullw r8,r6,r9
+ subf. r8,r8,r3
+ beq set_tras
+ addi r6,r6,1
+set_tras:
+ li r5,ERR_TRAS_FAIL
+ cmpi 0,0,r6,0x0F /* max supported value */
+ bgt spd_fail
+ rlwimi r7,r6,16,12,15
+
+ READ_SPD(29) /* Get tRCD */
+ beq spd_read_fail
+ /* right shift tRCD by 2 bits as per DDR2 spec */
+ rlwinm r3,r3,30,2,31
+ divwu r6,r3,r9
+ mullw r8,r6,r9
+ subf. r8,r8,r3
+ beq set_trcd
+ addi r6,r6,1
+set_trcd:
+ li r5,ERR_TRCD_FAIL
+ cmpi 0,0,r6,0x07 /* max supported value */
+ bgt spd_fail
+ rlwimi r7,r6,12,17,19
+
+ READ_SPD(27) /* Get tRP value */
+ beq spd_read_fail
+ rlwinm r3,r3,30,2,31 /* right shift tRP by 2 bits as per DDR2 spec */
+ divwu r6,r3,r9
+ mullw r8,r6,r9
+ subf. r8,r8,r3
+ beq set_trp
+ addi r6,r6,1
+set_trp:
+ li r5,ERR_TRP_FAIL
+ cmpi 0,0,r6,0x07 /* max supported value */
+ bgt spd_fail
+ rlwimi r7,r6,8,21,23
+
+ READ_SPD(36) /* Get tWR value */
+ beq spd_read_fail
+ rlwinm r3,r3,30,2,31 /* right shift tWR by 2 bits as per DDR2 spec */
+ divwu r6,r3,r9
+ mullw r8,r6,r9
+ subf. r8,r8,r3
+ beq set_twr
+ addi r6,r6,1
+set_twr:
+ addi r6,r6,-1 /* Tsi108 SDC always gives one extra clock */
+ li r5,ERR_TWR_FAIL
+ cmpi 0,0,r6,0x07 /* max supported value */
+ bgt spd_fail
+ rlwimi r7,r6,5,24,26
+
+ READ_SPD(42) /* Get tRFC */
+ beq spd_read_fail
+ li r5, ERR_TRFC_FAIL
+ /* Tsi108 spec: tRFC=(tRFC + 1)/2 */
+ addi r3,r3,1
+ rlwinm. r3,r3,31,1,31 /* divide by 2 */
+ beq spd_fail
+ divwu r6,r3,r9
+ mullw r8,r6,r9
+ subf. r8,r8,r3
+ beq set_trfc
+ addi r6,r6,1
+set_trfc:
+ cmpi 0,0,r6,0x1F /* max supported value */
+ bgt spd_fail
+ rlwimi r7,r6,0,27,31
+
+ stw r7,SD_TIMING(r4)
+ sync
+
+ /*
+ * The following two registers are set on per-DIMM basis.
+ * The SD_REFRESH and SD_TIMING settings are common for both DIMMS
+ */
+
+do_each_dimm:
+
+ /* Program SDRAM DIMM Control Register */
+
+ li r7, 0 /* clear r7 prior parameter collection */
+
+ READ_SPD(13) /* Get Primary SDRAM Width */
+ beq spd_read_fail
+ cmpi 0,0,r3,4 /* Check for 4-bit SDRAM */
+ beq do_nbank
+ oris r7,r7,0x0010 /* Set MEM_WIDTH bit */
+
+do_nbank:
+ READ_SPD(17) /* Get Number of banks on SDRAM device */
+ beq spd_read_fail
+ /* Grendel only distinguish betw. 4 or 8-bank memory parts */
+ li r5,ERR_UNKNOWN_PART /* non-supported memory part */
+ cmpi 0,0,r3,4
+ beq do_nrank
+ cmpi 0,0,r3,8
+ bne spd_fail
+ ori r7,r7,0x1000
+
+do_nrank:
+ READ_SPD(5) /* Get # of Ranks */
+ beq spd_read_fail
+ li r5,ERR_NRANK_INVALID
+ andi. r6,r3,0x7 /* Use bits [2..0] only */
+ beq do_addr_mode
+ cmpi 0,0,r6,1
+ bgt spd_fail
+ rlwimi r7,r6,8,23,23
+
+do_addr_mode:
+ READ_SPD(4) /* Get # of Column Addresses */
+ beq spd_read_fail
+ li r5, ERR_ADDR_MODE
+ andi. r3,r3,0x0f /* cut off reserved bits */
+ cmpi 0,0,r3,8
+ ble spd_fail
+ cmpi 0,0,r3,15
+ bgt spd_fail
+ addi r6,r3,-8 /* calculate ADDR_MODE parameter */
+ rlwimi r7,r6,4,24,27 /* set ADDR_MODE field */
+
+set_dimm_ctrl:
+#ifdef SDC_AUTOPRECH_EN
+ oris r7,r7,0x0001 /* set auto precharge EN bit */
+#endif
+ ori r7,r7,1 /* set ENABLE bit */
+ cmpi 0,0,r10,SPD_DIMM0
+ bne 1f
+ stw r7,SD_D0_CTRL(r4)
+ sync
+ b set_dimm_bar
+1:
+ stw r7,SD_D1_CTRL(r4)
+ sync
+
+
+ /* Program SDRAM DIMMx Base Address Register */
+
+set_dimm_bar:
+ READ_SPD(5) /* get # of Ranks */
+ beq spd_read_fail
+ andi. r7,r3,0x7
+ addi r7,r7,1
+ READ_SPD(31) /* Read DIMM rank density */
+ beq spd_read_fail
+ rlwinm r5,r3,27,29,31
+ rlwinm r6,r3,3,24,28
+ or r5,r6,r5 /* r5 = Normalized Rank Density byte */
+ lis r8, 0x0080 /* 128MB >> 4 */
+ mullw r8,r8,r5 /* r8 = (rank_size >> 4) */
+ mullw r8,r8,r7 /* r8 = (DIMM_size >> 4) */
+ neg r7,r8
+ rlwinm r7,r7,28,4,31
+ or r7,r7,r11 /* set ADDR field */
+ rlwinm r8,r8,12,20,31
+ add r11,r11,r8 /* set Base Addr for next DIMM */
+
+ cmpi 0,0,r10,SPD_DIMM0
+ bne set_dimm1_size
+ stw r7,SD_D0_BAR(r4)
+ sync
+ li r10,SPD_DIMM1
+ READ_SPD(0)
+ bne do_each_dimm
+ b spd_done
+
+set_dimm1_size:
+ stw r7,SD_D1_BAR(r4)
+ sync
+spd_done:
+ blr
+
+check_next_slot:
+ cmpi 0,0,r10,SPD_DIMM1
+ beq spd_read_fail
+ li r10,SPD_DIMM1
+ b do_first_dimm
+spd_read_fail:
+ ori r3,r0,0xdead
+ b err_hung
+spd_fail:
+ li r3,0x0bad
+ sync
+err_hung: /* hang here for debugging */
+ nop
+ nop
+ b err_hung
+
+#endif /* !SDC_HARDCODED_INIT */
--- /dev/null
+#
+# Copyright (c) 2005 Freescale Semiconductor, Inc.
+#
+# 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
+#
+
+# Flash address
+TEXT_BASE = 0xFF000000
+# RAM address
+#TEXT_BASE = 0x00400000
+
+PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -maltivec -mabi=altivec -msoft-float
--- /dev/null
+/*
+ * (C) Copyright 2005 Freescale Semiconductor, Inc.
+ *
+ * Roy Zang <tie-fei.zang@freescale.com>
+ *
+ * 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
+ *
+ * modifications for the Tsi108 Emul Board by avb@Tundra
+ */
+
+/*
+ * board support/init functions for the
+ * Freescale MPC7448 HPC2 (High-Performance Computing 2 Platform).
+ */
+
+#include <common.h>
+#include <74xx_7xx.h>
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+extern void ft_cpu_setup (void *blob, bd_t *bd);
+#endif
+
+#undef DEBUG
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern void flush_data_cache (void);
+extern void invalidate_l1_instruction_cache (void);
+extern void tsi108_init_f (void);
+
+int display_mem_map (void);
+
+void after_reloc (ulong dest_addr)
+{
+ /*
+ * Jump to the main U-Boot board init code
+ */
+ board_init_r ((gd_t *) gd, dest_addr);
+ /* NOTREACHED */
+}
+
+/*
+ * Check Board Identity:
+ * report board type
+ */
+
+int checkboard (void)
+{
+ int l_type = 0;
+
+ printf ("BOARD: %s\n", CFG_BOARD_NAME);
+ return (l_type);
+}
+
+/*
+ * Read Processor ID:
+ *
+ * report calling processor number
+ */
+
+int read_pid (void)
+{
+ return 0; /* we are on single CPU platform for a while */
+}
+
+long int dram_size (int board_type)
+{
+ return 0x20000000; /* 256M bytes */
+}
+
+long int initdram (int board_type)
+{
+ return dram_size (board_type);
+}
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup (void *blob, bd_t *bd)
+{
+ u32 *p;
+ int len;
+
+ ft_cpu_setup (blob, bd);
+
+ p = ft_get_prop (blob, "/memory/reg", &len);
+ if (p != NULL) {
+ *p++ = cpu_to_be32 (bd->bi_memstart);
+ *p = cpu_to_be32 (bd->bi_memsize);
+ }
+}
+#endif
--- /dev/null
+/*****************************************************************************
+ * (C) Copyright 2003; Tundra Semiconductor Corp.
+ *
+ * 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
+ *****************************************************************************/
+
+/*----------------------------------------------------------------------------
+ * FILENAME: tsi108_init.c
+ *
+ * Originator: Alex Bounine
+ *
+ * DESCRIPTION:
+ * Initialization code for the Tundra Tsi108 bridge chip
+ *---------------------------------------------------------------------------*/
+
+#include <common.h>
+#include <74xx_7xx.h>
+#include <config.h>
+#include <version.h>
+#include <asm/processor.h>
+#include <tsi108.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern void mpicInit (int verbose);
+
+/*
+ * Configuration Options
+ */
+
+typedef struct {
+ ulong upper;
+ ulong lower;
+} PB2OCN_LUT_ENTRY;
+
+PB2OCN_LUT_ENTRY pb2ocn_lut1[32] = {
+ /* 0 - 7 */
+ {0x00000000, 0x00000201}, /* PBA=0xE000_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE100_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE200_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE300_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE400_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE500_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE600_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE700_0000 -> PCI/X (Byte-Swap) */
+
+ /* 8 - 15 */
+ {0x00000000, 0x00000201}, /* PBA=0xE800_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xE900_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEA00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEB00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEC00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xED00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEE00_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xEF00_0000 -> PCI/X (Byte-Swap) */
+
+ /* 16 - 23 */
+ {0x00000000, 0x00000201}, /* PBA=0xF000_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF100_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF200_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF300_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF400_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF500_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF600_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF700_0000 -> PCI/X (Byte-Swap) */
+ /* 24 - 31 */
+ {0x00000000, 0x00000201}, /* PBA=0xF800_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xF900_0000 -> PCI/X (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xFA00_0000 -> PCI/X PCI I/O (Byte-Swap) */
+ {0x00000000, 0x00000201}, /* PBA=0xFB00_0000 -> PCI/X PCI Config (Byte-Swap) */
+
+ {0x00000000, 0x02000240}, /* PBA=0xFC00_0000 -> HLP */
+ {0x00000000, 0x01000240}, /* PBA=0xFD00_0000 -> HLP */
+ {0x00000000, 0x03000240}, /* PBA=0xFE00_0000 -> HLP */
+ {0x00000000, 0x00000240} /* PBA=0xFF00_0000 -> HLP : (Translation Enabled + Byte-Swap)*/
+};
+
+#ifdef CFG_CLK_SPREAD
+typedef struct {
+ ulong ctrl0;
+ ulong ctrl1;
+} PLL_CTRL_SET;
+
+/*
+ * Clock Generator SPLL0 initialization values
+ * PLL0 configuration table for various PB_CLKO freq.
+ * Uses pre-calculated values for Fs = 30 kHz, D = 0.5%
+ * Fout depends on required PB_CLKO. Based on Fref = 33 MHz
+ */
+
+static PLL_CTRL_SET pll0_config[8] = {
+ {0x00000000, 0x00000000}, /* 0: bypass */
+ {0x00000000, 0x00000000}, /* 1: reserved */
+ {0x00430044, 0x00000043}, /* 2: CG_PB_CLKO = 183 MHz */
+ {0x005c0044, 0x00000039}, /* 3: CG_PB_CLKO = 100 MHz */
+ {0x005c0044, 0x00000039}, /* 4: CG_PB_CLKO = 133 MHz */
+ {0x004a0044, 0x00000040}, /* 5: CG_PB_CLKO = 167 MHz */
+ {0x005c0044, 0x00000039}, /* 6: CG_PB_CLKO = 200 MHz */
+ {0x004f0044, 0x0000003e} /* 7: CG_PB_CLKO = 233 MHz */
+};
+#endif /* CFG_CLK_SPREAD */
+
+/*
+ * Prosessor Bus Clock (in MHz) defined by CG_PB_SELECT
+ * (based on recommended Tsi108 reference clock 33MHz)
+ */
+static int pb_clk_sel[8] = { 0, 0, 183, 100, 133, 167, 200, 233 };
+
+/*
+ * get_board_bus_clk ()
+ *
+ * returns the bus clock in Hz.
+ */
+unsigned long get_board_bus_clk (void)
+{
+ ulong i;
+
+ /* Detect PB clock freq. */
+ i = in32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS);
+ i = (i >> 16) & 0x07; /* Get PB PLL multiplier */
+
+ return pb_clk_sel[i] * 1000000;
+}
+
+/*
+ * board_early_init_f ()
+ *
+ * board-specific initialization executed from flash
+ */
+
+int board_early_init_f (void)
+{
+ ulong i;
+
+ gd->mem_clk = 0;
+ i = in32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET +
+ CG_PWRUP_STATUS);
+ i = (i >> 20) & 0x07; /* Get GD PLL multiplier */
+ switch (i) {
+ case 0: /* external clock */
+ printf ("Using external clock\n");
+ break;
+ case 1: /* system clock */
+ gd->mem_clk = gd->bus_clk;
+ break;
+ case 4: /* 133 MHz */
+ case 5: /* 166 MHz */
+ case 6: /* 200 MHz */
+ gd->mem_clk = pb_clk_sel[i] * 1000000;
+ break;
+ default:
+ printf ("Invalid DDR2 clock setting\n");
+ return -1;
+ }
+ printf ("BUS: %d MHz\n", get_board_bus_clk() / 1000000);
+ printf ("MEM: %d MHz\n", gd->mem_clk / 1000000);
+ return 0;
+}
+
+/*
+ * board_early_init_r() - Tsi108 initialization function executed right after
+ * relocation. Contains code that cannot be executed from flash.
+ */
+
+int board_early_init_r (void)
+{
+ ulong temp, i;
+ ulong reg_val;
+ volatile ulong *reg_ptr;
+
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x900);
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = 0x00000201; /* SWAP ENABLED */
+ *reg_ptr++ = 0x00;
+ }
+
+ __asm__ __volatile__ ("eieio");
+ __asm__ __volatile__ ("sync");
+
+ /* Setup PB_OCN_BAR2: size 256B + ENable @ 0x0_80000000 */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2,
+ 0x80000001);
+ __asm__ __volatile__ ("sync");
+
+ /* Make sure that OCN_BAR2 decoder is set (to allow following immediate
+ * read from SDRAM)
+ */
+
+ temp = in32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2);
+ __asm__ __volatile__ ("sync");
+
+ /*
+ * Remap PB_OCN_BAR1 to accomodate PCI-bus aperture and EPROM into the
+ * processor bus address space. Immediately after reset LUT and address
+ * translation are disabled for this BAR. Now we have to initialize LUT
+ * and switch from the BOOT mode to the normal operation mode.
+ *
+ * The aperture defined by PB_OCN_BAR1 startes at address 0xE0000000
+ * and covers 512MB of address space. To allow larger aperture we also
+ * have to relocate register window of Tsi108
+ *
+ * Initialize LUT (32-entries) prior switching PB_OCN_BAR1 from BOOT
+ * mode.
+ *
+ * initialize pointer to LUT associated with PB_OCN_BAR1
+ */
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x800);
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = pb2ocn_lut1[i].lower;
+ *reg_ptr++ = pb2ocn_lut1[i].upper;
+ }
+
+ __asm__ __volatile__ ("sync");
+
+ /* Base addresses for CS0, CS1, CS2, CS3 */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_ADDR,
+ 0x00000000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_ADDR,
+ 0x00100000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_ADDR,
+ 0x00200000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_ADDR,
+ 0x00300000);
+ __asm__ __volatile__ ("sync");
+
+ /* Masks for HLP banks */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_MASK,
+ 0xFFF00000);
+ __asm__ __volatile__ ("sync");
+
+ /* Set CTRL0 values for banks */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL0,
+ 0x7FFC44C2);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL0,
+ 0x7FFC44C0);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL0,
+ 0x7FFC44C0);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL0,
+ 0x7FFC44C2);
+ __asm__ __volatile__ ("sync");
+
+ /* Set banks to latched mode, enabled, and other default settings */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL1,
+ 0x7C0F2000);
+ __asm__ __volatile__ ("sync");
+
+ /*
+ * Set new value for PB_OCN_BAR1: switch from BOOT to LUT mode.
+ * value for PB_OCN_BAR1: (BA-0xE000_0000 + size 512MB + ENable)
+ */
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1,
+ 0xE0000011);
+ __asm__ __volatile__ ("sync");
+
+ /* Make sure that OCN_BAR2 decoder is set (to allow following
+ * immediate read from SDRAM)
+ */
+
+ temp = in32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1);
+ __asm__ __volatile__ ("sync");
+
+ /*
+ * SRI: At this point we have enabled the HLP banks. That means we can
+ * now read from the NVRAM and initialize the environment variables.
+ * We will over-ride the env_init called in board_init_f
+ * This is really a work-around because, the HLP bank 1
+ * where NVRAM resides is not visible during board_init_f
+ * (lib_ppc/board.c)
+ * Alternatively, we could use the I2C EEPROM at start-up to configure
+ * and enable all HLP banks and not just HLP 0 as is being done for
+ * Taiga Rev. 2.
+ */
+
+ env_init ();
+
+#ifndef DISABLE_PBM
+
+ /*
+ * For IBM processors we have to set Address-Only commands generated
+ * by PBM that are different from ones set after reset.
+ */
+
+ temp = get_cpu_type ();
+
+ if ((CPU_750FX == temp) || (CPU_750GX == temp))
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_MCMD,
+ 0x00009955);
+#endif /* DISABLE_PBM */
+
+#ifdef CONFIG_PCI
+ /*
+ * Initialize PCI/X block
+ */
+
+ /* Map PCI/X Configuration Space (16MB @ 0x0_FE000000) */
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET +
+ PCI_PFAB_BAR0_UPPER, 0);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_BAR0,
+ 0xFB000001);
+ __asm__ __volatile__ ("sync");
+
+ /* Set Bus Number for the attached PCI/X bus (we will use 0 for NB) */
+
+ temp = in32(CFG_TSI108_CSR_BASE +
+ TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT);
+
+ temp &= ~0xFF00; /* Clear the BUS_NUM field */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT,
+ temp);
+
+ /* Map PCI/X IO Space (64KB @ 0x0_FD000000) takes one 16MB LUT entry */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO_UPPER,
+ 0);
+ __asm__ __volatile__ ("sync");
+
+ /* This register is on the PCI side to interpret the address it receives
+ * and maps it as a IO address.
+ */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO,
+ 0xFA000001);
+ __asm__ __volatile__ ("sync");
+
+ /*
+ * Map PCI/X Memory Space
+ *
+ * Transactions directed from OCM to PCI Memory Space are directed
+ * from PB to PCI
+ * unchanged (as defined by PB_OCN_BAR1,2 and LUT settings).
+ * If address remapping is required the corresponding PCI_PFAB_MEM32
+ * and PCI_PFAB_PFMx register groups have to be configured.
+ *
+ * Map the path from the PCI/X bus into the system memory
+ *
+ * The memory mapped window assotiated with PCI P2O_BAR2 provides
+ * access to the system memory without address remapping.
+ * All system memory is opened for accesses initiated by PCI/X bus
+ * masters.
+ *
+ * Initialize LUT associated with PCI P2O_BAR2
+ *
+ * set pointer to LUT associated with PCI P2O_BAR2
+ */
+
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x500);
+
+#ifdef DISABLE_PBM
+
+ /* In case when PBM is disabled (no HW supported cache snoopng on PB)
+ * P2O_BAR2 is directly mapped into the system memory without address
+ * translation.
+ */
+
+ reg_val = 0x00000004; /* SDRAM port + NO Addr_Translation */
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */
+ *reg_ptr++ = 0; /* P2O_BAR2_LUT_UPPERx */
+ }
+
+ /* value for PCI BAR2 (size = 512MB, Enabled, No Addr. Translation) */
+ reg_val = 0x00007500;
+#else
+
+ reg_val = 0x00000002; /* Destination port = PBM */
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */
+/* P2O_BAR2_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */
+ *reg_ptr++ = 0x40000000;
+/* offset = 16MB, address translation is enabled to allow byte swapping */
+ reg_val += 0x01000000;
+ }
+
+/* value for PCI BAR2 (size = 512MB, Enabled, Address Translation Enabled) */
+ reg_val = 0x00007100;
+#endif
+
+ __asm__ __volatile__ ("eieio");
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES,
+ reg_val);
+ __asm__ __volatile__ ("sync");
+
+ /* Set 64-bit PCI bus address for system memory
+ * ( 0 is the best choice for easy mapping)
+ */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2,
+ 0x00000000);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2_UPPER,
+ 0x00000000);
+ __asm__ __volatile__ ("sync");
+
+#ifndef DISABLE_PBM
+ /*
+ * The memory mapped window assotiated with PCI P2O_BAR3 provides
+ * access to the system memory using SDRAM OCN port and address
+ * translation. This is alternative way to access SDRAM from PCI
+ * required for Tsi108 emulation testing.
+ * All system memory is opened for accesses initiated by
+ * PCI/X bus masters.
+ *
+ * Initialize LUT associated with PCI P2O_BAR3
+ *
+ * set pointer to LUT associated with PCI P2O_BAR3
+ */
+ reg_ptr =
+ (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x600);
+
+ reg_val = 0x00000004; /* Destination port = SDC */
+
+ for (i = 0; i < 32; i++) {
+ *reg_ptr++ = reg_val; /* P2O_BAR3_LUTx */
+
+/* P2O_BAR3_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */
+ *reg_ptr++ = 0;
+
+/* offset = 16MB, address translation is enabled to allow byte swapping */
+ reg_val += 0x01000000;
+ }
+
+ __asm__ __volatile__ ("eieio");
+ __asm__ __volatile__ ("sync");
+
+ /* Configure PCI P2O_BAR3 (size = 512MB, Enabled) */
+
+ reg_val =
+ in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET +
+ PCI_P2O_PAGE_SIZES);
+ reg_val &= ~0x00FF;
+ reg_val |= 0x0071;
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES,
+ reg_val);
+ __asm__ __volatile__ ("sync");
+
+ /* Set 64-bit base PCI bus address for window (0x20000000) */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3_UPPER,
+ 0x00000000);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3,
+ 0x20000000);
+ __asm__ __volatile__ ("sync");
+
+#endif /* !DISABLE_PBM */
+
+#ifdef ENABLE_PCI_CSR_BAR
+ /* open if required access to Tsi108 CSRs from the PCI/X bus */
+ /* enable BAR0 on the PCI/X bus */
+ reg_val = in32(CFG_TSI108_CSR_BASE +
+ TSI108_PCI_REG_OFFSET + PCI_MISC_CSR);
+ reg_val |= 0x02;
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_MISC_CSR,
+ reg_val);
+ __asm__ __volatile__ ("sync");
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0_UPPER,
+ 0x00000000);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0,
+ CFG_TSI108_CSR_BASE);
+ __asm__ __volatile__ ("sync");
+
+#endif
+
+ /*
+ * Finally enable PCI/X Bus Master and Memory Space access
+ */
+
+ reg_val = in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR);
+ reg_val |= 0x06;
+ out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR, reg_val);
+ __asm__ __volatile__ ("sync");
+
+#endif /* CONFIG_PCI */
+
+ /*
+ * Initialize MPIC outputs (interrupt pins):
+ * Interrupt routing on the Grendel Emul. Board:
+ * PB_INT[0] -> INT (CPU0)
+ * PB_INT[1] -> INT (CPU1)
+ * PB_INT[2] -> MCP (CPU0)
+ * PB_INT[3] -> MCP (CPU1)
+ * Set interrupt controller outputs as Level_Sensitive/Active_Low
+ */
+ out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(0), 0x02);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(1), 0x02);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(2), 0x02);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(3), 0x02);
+ __asm__ __volatile__ ("sync");
+
+ /*
+ * Ensure that Machine Check exception is enabled
+ * We need it to support PCI Bus probing (configuration reads)
+ */
+
+ reg_val = mfmsr ();
+ mtmsr(reg_val | MSR_ME);
+
+ return 0;
+}
+
+/*
+ * Needed to print out L2 cache info
+ * used in the misc_init_r function
+ */
+
+unsigned long get_l2cr (void)
+{
+ unsigned long l2controlreg;
+ asm volatile ("mfspr %0, 1017":"=r" (l2controlreg):);
+ return l2controlreg;
+}
+
+/*
+ * misc_init_r()
+ *
+ * various things to do after relocation
+ *
+ */
+
+int misc_init_r (void)
+{
+#ifdef CFG_CLK_SPREAD /* Initialize Spread-Spectrum Clock generation */
+ ulong i;
+
+ /* Ensure that Spread-Spectrum is disabled */
+ out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, 0);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, 0);
+
+ /* Initialize PLL1: CG_PCI_CLK , internal OCN_CLK
+ * Uses pre-calculated value for Fout = 800 MHz, Fs = 30 kHz, D = 0.5%
+ */
+
+ out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0,
+ 0x002e0044); /* D = 0.25% */
+ out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL1,
+ 0x00000039); /* BWADJ */
+
+ /* Initialize PLL0: CG_PB_CLKO */
+ /* Detect PB clock freq. */
+ i = in32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS);
+ i = (i >> 16) & 0x07; /* Get PB PLL multiplier */
+
+ out32 (CFG_TSI108_CSR_BASE +
+ TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, pll0_config[i].ctrl0);
+ out32 (CFG_TSI108_CSR_BASE +
+ TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL1, pll0_config[i].ctrl1);
+
+ /* Wait and set SSEN for both PLL0 and 1 */
+ udelay (1000);
+ out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0,
+ 0x802e0044); /* D=0.25% */
+ out32 (CFG_TSI108_CSR_BASE +
+ TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0,
+ 0x80000000 | pll0_config[i].ctrl0);
+#endif /* CFG_CLK_SPREAD */
+
+#ifdef CFG_L2
+ l2cache_enable ();
+#endif
+ printf ("BUS: %d MHz\n", gd->bus_clk / 1000000);
+ printf ("MEM: %d MHz\n", gd->mem_clk / 1000000);
+
+ /*
+ * All the information needed to print the cache details is avaiblable
+ * at this point i.e. above call to l2cache_enable is the very last
+ * thing done with regards to enabling diabling the cache.
+ * So this seems like a good place to print all this information
+ */
+
+ printf ("CACHE: ");
+ switch (get_cpu_type()) {
+ case CPU_7447A:
+ printf ("L1 Instruction cache - 32KB 8-way");
+ (get_hid0 () & (1 << 15)) ? printf (" ENABLED\n") :
+ printf (" DISABLED\n");
+ printf ("L1 Data cache - 32KB 8-way");
+ (get_hid0 () & (1 << 14)) ? printf (" ENABLED\n") :
+ printf (" DISABLED\n");
+ printf ("Unified L2 cache - 512KB 8-way");
+ (get_l2cr () & (1 << 31)) ? printf (" ENABLED\n") :
+ printf (" DISABLED\n");
+ printf ("\n");
+ break;
+
+ case CPU_7448:
+ printf ("L1 Instruction cache - 32KB 8-way");
+ (get_hid0 () & (1 << 15)) ? printf (" ENABLED\n") :
+ printf (" DISABLED\n");
+ printf ("L1 Data cache - 32KB 8-way");
+ (get_hid0 () & (1 << 14)) ? printf (" ENABLED\n") :
+ printf (" DISABLED\n");
+ printf ("Unified L2 cache - 1MB 8-way");
+ (get_l2cr () & (1 << 31)) ? printf (" ENABLED\n") :
+ printf (" DISABLED\n");
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
+ *
+ * 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
+ */
+
+/*
+ * u-boot.lds - linker script for U-Boot on mpc7448hpc2 Board.
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ cpu/74xx_7xx/start.o (.text)
+
+/* store the environment in a seperate sector in the boot flash */
+/* . = env_offset; */
+/* common/environment.o(.text) */
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ *(.rodata.str1.4)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+ .reloc :
+ {
+ *(.got)
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss (NOLOAD) :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
+++ /dev/null
-#
-# (C) Copyright 2000
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# 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 = $(obj)lib$(BOARD).a
-
-COBJS := $(BOARD).o tsi108_init.o
-SOBJS := asm_init.o
-
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(COBJS))
-SOBJS := $(addprefix $(obj),$(SOBJS))
-
-$(LIB): $(obj).depend $(OBJS) $(SOBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
-
-clean:
- rm -f $(SOBJS) $(OBJS)
-
-.PHONY: distclean
-distclean: clean
- rm -f $(LIB) core *.bak .depend
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude ($obj).depend
-
-#########################################################################
+++ /dev/null
-/*
- * (C) Copyright 2004-05; Tundra Semiconductor Corp.
- *
- * Added automatic detect of SDC settings
- * Copyright (c) 2005 Freescale Semiconductor, Inc.
- * Maintainer tie-fei.zang@freescale.com
- *
- * 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
- */
-
-/*
- * FILENAME: asm_init.s
- *
- * Originator: Alex Bounine
- *
- * DESCRIPTION:
- * Initialization code for the Tundra Tsi108 bridge chip
- *
- */
-
-#include <config.h>
-#include <version.h>
-
-#include <ppc_asm.tmpl>
-#include <ppc_defs.h>
-#include <asm/processor.h>
-
-#include <tsi108.h>
-
-/*
- * Build Configuration Options
- */
-
-/* #define DISABLE_PBM disables usage of PB Master */
-/* #define SDC_HARDCODED_INIT config SDRAM controller with hardcoded values */
-/* #define SDC_AUTOPRECH_EN enable SDRAM auto precharge */
-
-/*
- * Hardcoded SDC settings
- */
-
-#ifdef SDC_HARDCODED_INIT
-
-/* Micron MT9HTF6472AY-40EA1 : Unbuffered, 512MB, 400, CL3, Single Rank */
-
-#define VAL_SD_REFRESH (0x61A)
-#define VAL_SD_TIMING (0x0308336b)
-#define VAL_SD_D0_CTRL (0x07100021) /* auto-precharge disabled */
-#define VAL_SD_D0_BAR (0x0FE00000) /* 512MB @ 0x00000000 */
-#define VAL_SD_D1_CTRL (0x07100021) /* auto-precharge disabled */
-#define VAL_SD_D1_BAR (0x0FE00200) /* 512MB @ 0x20000000 */
-
-#endif /* SDC_HARDCODED_INIT */
-
-/*
- CPU Configuration:
-
- CPU Address and Data Parity enables.
-
-#define CPU_AP
-#define CPU_DP
-*/
-
-/*
- * Macros
- * !!! Attention !!! Macros LOAD_PTR, LOAD_U32 and LOAD_MEM defined below are
- * expected to work correctly for the CSR space within 32KB range.
- *
- * LOAD_PTR and LOAD_U32 - load specified register with a 32 bit constant.
- * These macros are absolutely identical except their names. This difference
- * is provided intentionally for better readable code.
- */
-
-#define LOAD_PTR(reg,const32) \
- addis reg,r0,const32@h; ori reg,reg,const32@l
-
-#define LOAD_U32(reg,const32) \
- addis reg,r0,const32@h; ori reg,reg,const32@l
-
-/* LOADMEM initializes a register with the contents of a specified 32-bit
- * memory location, usually a CSR value.
- */
-
-#define LOAD_MEM(reg,addr32) \
- addis reg,r0,addr32@ha; lwz reg,addr32@l(reg)
-
-#ifndef SDC_HARDCODED_INIT
-sdc_clk_sync:
- /* MHz: 0,0,183,100,133,167,200,233 */
- .long 0, 0, 6, 10, 8, 6, 5, 4 /* nSec */
-#endif
-
-/*
- * board_asm_init() - early initialization function. Coded to be portable to
- * dual-CPU configuration.
- * Checks CPU number and performs board HW initialization if called for CPU0.
- * Registers used: r3,r4,r5,r6,r19,r29
- *
- * NOTE: For dual-CPU configuration only CPU0 is allowed to configure Tsi108
- * and the rest of the board. Current implementation demonstrates two
- * possible ways to identify CPU number:
- * - for MPC74xx platform: uses MSSCR0[ID] bit as defined in UM.
- * - for PPC750FX/GX boards: uses WHO_AM_I bit reported by Tsi108.
- */
-
- .globl board_asm_init
-board_asm_init:
- mflr r19 /* Save LR to be able return later. */
- bl icache_enable /* Enable icache to reduce reads from flash. */
-
-/* Initialize pointer to Tsi108 register space */
-
- LOAD_PTR(r29,CFG_TSI108_CSR_RST_BASE)/* r29 - pointer to tsi108 CSR space */
- ori r4,r29,TSI108_PB_REG_OFFSET
-
-/* Check Processor Version Number */
-
- mfspr r3, PVR
- rlwinm r3,r3,16,16,23 /* get ((Processor Version Number) & 0xFF00) */
-
- cmpli 0,0,r3,0x8000 /* MPC74xx */
- bne cont_brd_init
-
- /*
- * For MPC744x/5x enable extended BATs[4-7]
- * Sri: Set HIGH_BAT_EN and XBSEN, and SPD =1
- * to disable prefetch
- */
-
- mfspr r5, HID0
- oris r5, r5, 0x0080 /* Set HID0[HIGH_BAT_EN] bit #8 */
- ori r5, r5, 0x0380 /* Set SPD,XBSEN,SGE bits #22,23,24 */
- mtspr HID0, r5
- isync
- sync
-
- /* Adding code to disable external interventions in MPX bus mode */
- mfspr r3, 1014
- oris r3, r3, 0x0100 /* Set the EIDIS bit in MSSCR0: bit 7 */
- mtspr 1014, r3
- isync
- sync
-
- /* Sri: code to enable FP unit */
- mfmsr r3
- ori r3, r3, 0x2000
- mtmsr r3
- isync
- sync
-
- /* def CONFIG_DUAL_CPU
- * For MPC74xx processor, use MSSCR0[ID] bit to identify CPU number.
- */
-#if(1)
- mfspr r3,1014 /* read MSSCR0 */
- rlwinm. r3,r3,27,31,31 /* get processor ID number */
- mtspr SPRN_PIR,r3 /* Save CPU ID */
- sync
- bne init_done
- b do_tsi108_init
-
-cont_brd_init:
-
- /* An alternative method of checking the processor number (in addition
- * to configuration using MSSCR0[ID] bit on MPC74xx).
- * Good for IBM PPC750FX/GX.
- */
-
- lwz r3,PB_BUS_MS_SELECT(r4) /* read PB_ID register */
- rlwinm. r3,r3,24,31,31 /* get processor ID number */
- bne init_done
-#else
-
-cont_brd_init:
-
-#endif /* CONFIG_DUAL_CPU */
-
- /* Initialize Tsi108 chip */
-
-do_tsi108_init:
-
- /*
- * Adjust HLP/Flash parameters. By default after reset the HLP port is
- * set to support slow devices. Better performance can be achived when
- * an optimal parameters are used for specific EPROM device.
- * NOTE: This should be performed ASAP for the emulation platform
- * because it has 5MHz HLP clocking.
- */
-
-#ifdef CONFIG_TSI108EMU
- ori r4,r29,TSI108_HLP_REG_OFFSET
- LOAD_U32(r5,0x434422c0)
- stw r5,0x08(r4) /* set HLP B0_CTRL0 */
- sync
- LOAD_U32(r5,0xd0012000)
- stw r5,0x0c(r4) /* set HLP B0_CTRL1 */
- sync
-#endif
-
- /* Initialize PB interface. */
-
- ori r4,r29,TSI108_PB_REG_OFFSET
-
-#if (CFG_TSI108_CSR_BASE != CFG_TSI108_CSR_RST_BASE)
- /* Relocate (if required) Tsi108 registers. Set new value for
- * PB_REG_BAR:
- * Note we are in the 32-bit address mode.
- */
- LOAD_U32(r5,(CFG_TSI108_CSR_BASE | 0x01)) /* PB_REG_BAR: BA + EN */
- stw r5,PB_REG_BAR(r4)
- andis. r29,r5,0xFFFF
- sync
- ori r4,r29,TSI108_PB_REG_OFFSET
-#endif
-
- /* Set PB Slave configuration register */
-
- LOAD_U32(r5,0x00002481) /* PB_SCR: TEA enabled,AACK delay = 1 */
- lwz r3, PB_RSR(r4) /* get PB bus mode */
- xori r3,r3,0x0001 /* mask PB_BMODE: r3 -> (0 = 60X, 1 = MPX) */
- rlwimi r5,r3,14,17,17 /* for MPX: set DTI_MODE bit */
- stw r5,PB_SCR(r4)
- sync
-
- /* Configure PB Arbiter */
-
- lwz r5,PB_ARB_CTRL(r4) /* Read PB Arbiter Control Register */
- li r3, 0x00F0 /* ARB_PIPELINE_DEP mask */
-#ifdef DISABLE_PBM
- ori r3,r3,0x1000 /* add PBM_EN to clear (enabled by default) */
-#endif
- andc r5,r5,r3 /* Clear the masked bit fields */
- ori r5,r5,0x0001 /* Set pipeline depth */
- stw r5,PB_ARB_CTRL(r4)
-
-#if (0) /* currently using the default settings for PBM after reset */
- LOAD_U32(r5,0x) /* value for PB_MCR */
- stw r5,PB_MCR(r4)
- sync
-
- LOAD_U32(r5,0x) /* value for PB_MCMD */
- stw r5,PB_MCMD(r4)
- sync
-#endif
-
- /* Disable or enable PVT based on processor bus frequency
- * 1. Read CG_PWRUP_STATUS register field bits 18,17,16
- * 2. See if the value is < or > 133mhz (18:16 = 100)
- * 3. If > enable PVT
- */
-
- LOAD_U32(r3,0xC0002234)
- lwz r3,0(r3)
- rlwinm r3,r3,16,29,31
-
- cmpi 0,0,r3,0x0004
- bgt sdc_init
-
-#ifndef CONFIG_TSI108EMU
- /* FIXME: Disable PB calibration control for any real Tsi108 board */
- li r5,0x0101 /* disable calibration control */
- stw r5,PB_PVT_CTRL2(r4)
- sync
-#endif
-
- /* Initialize SDRAM controller. */
-
-sdc_init:
-
-#ifndef SDC_HARDCODED_INIT
- /* get SDC clock prior doing sdram controller autoconfig */
- ori r4,r29,TSI108_CLK_REG_OFFSET /* r4 - ptr to CG registers */
- lwz r3, CG_PWRUP_STATUS(r4) /* get CG configuration */
- rlwinm r3,r3,12,29,31 /* r3 - SD clk */
- lis r5,sdc_clk_sync@h
- ori r5,r5,sdc_clk_sync@l
- /* Sri: At this point check if r3 = 001. If yes,
- * the memory frequency should be same as the
- * MPX bus frequency
- */
- cmpi 0,0,r3,0x0001
- bne get_nsec
- lwz r6, CG_PWRUP_STATUS(r4)
- rlwinm r6,r6,16,29,31
- mr r3,r6
-
-get_nsec:
- rlwinm r3,r3,2,0,31
- lwzx r9,r5,r3 /* get SD clk rate in nSec */
- /* ATTN: r9 will be used by SPD routine */
-#endif /* !SDC_HARDCODED_INIT */
-
- ori r4,r29,TSI108_SD_REG_OFFSET /* r4 - ptr to SDRAM registers */
-
- /* Initialize SDRAM controller. SDRAM Size = 512MB, One DIMM. */
-
- LOAD_U32(r5,0x00)
- stw r5,SD_INT_ENABLE(r4) /* Ensure that interrupts are disabled */
-#ifdef ENABLE_SDRAM_ECC
- li r5, 0x01
-#endif /* ENABLE_SDRAM_ECC */
- stw r5,SD_ECC_CTRL(r4) /* Enable/Disable ECC */
- sync
-
-#ifdef SDC_HARDCODED_INIT /* config sdram controller with hardcoded values */
-
- /* First read the CG_PWRUP_STATUS register to get the
- * memory speed from bits 22,21,20
- */
-
- LOAD_U32(r3,0xC0002234)
- lwz r3,0(r3)
- rlwinm r3,r3,12,29,31
-
- /* Now first check for 166, then 200, or default */
-
- cmpi 0,0,r3,0x0005
- bne check_for_200mhz
-
- /* set values for 166 Mhz memory speed
- * Set refresh rate and timing parameters
- */
- LOAD_U32(r5,0x00000515)
- stw r5,SD_REFRESH(r4)
- LOAD_U32(r5,0x03073368)
- stw r5,SD_TIMING(r4)
- sync
-
- /* Initialize DIMM0 control and BAR registers */
- LOAD_U32(r5,VAL_SD_D0_CTRL) /* auto-precharge disabled */
-#ifdef SDC_AUTOPRECH_EN
- oris r5,r5,0x0001 /* set auto precharge EN bit */
-#endif
- stw r5,SD_D0_CTRL(r4)
- LOAD_U32(r5,VAL_SD_D0_BAR)
- stw r5,SD_D0_BAR(r4)
- sync
-
- /* Initialize DIMM1 control and BAR registers
- * (same as dimm 0, next 512MB, disabled)
- */
- LOAD_U32(r5,VAL_SD_D1_CTRL) /* auto-precharge disabled */
-#ifdef SDC_AUTOPRECH_EN
- oris r5,r5,0x0001 /* set auto precharge EN bit */
-#endif
- stw r5,SD_D1_CTRL(r4)
- LOAD_U32(r5,VAL_SD_D1_BAR)
- stw r5,SD_D1_BAR(r4)
- sync
-
- b sdc_init_done
-
-check_for_200mhz:
-
- cmpi 0,0,r3,0x0006
- bne set_default_values
-
- /* set values for 200Mhz memory speed
- * Set refresh rate and timing parameters
- */
- LOAD_U32(r5,0x0000061a)
- stw r5,SD_REFRESH(r4)
- LOAD_U32(r5,0x03083348)
- stw r5,SD_TIMING(r4)
- sync
-
- /* Initialize DIMM0 control and BAR registers */
- LOAD_U32(r5,VAL_SD_D0_CTRL) /* auto-precharge disabled */
-#ifdef SDC_AUTOPRECH_EN
- oris r5,r5,0x0001 /* set auto precharge EN bit */
-#endif
- stw r5,SD_D0_CTRL(r4)
- LOAD_U32(r5,VAL_SD_D0_BAR)
- stw r5,SD_D0_BAR(r4)
- sync
-
- /* Initialize DIMM1 control and BAR registers
- * (same as dimm 0, next 512MB, disabled)
- */
- LOAD_U32(r5,VAL_SD_D1_CTRL) /* auto-precharge disabled */
-#ifdef SDC_AUTOPRECH_EN
- oris r5,r5,0x0001 /* set auto precharge EN bit */
-#endif
- stw r5,SD_D1_CTRL(r4)
- LOAD_U32(r5,VAL_SD_D1_BAR)
- stw r5,SD_D1_BAR(r4)
- sync
-
- b sdc_init_done
-
-set_default_values:
-
- /* Set refresh rate and timing parameters */
- LOAD_U32(r5,VAL_SD_REFRESH)
- stw r5,SD_REFRESH(r4)
- LOAD_U32(r5,VAL_SD_TIMING)
- stw r5,SD_TIMING(r4)
- sync
-
- /* Initialize DIMM0 control and BAR registers */
- LOAD_U32(r5,VAL_SD_D0_CTRL) /* auto-precharge disabled */
-#ifdef SDC_AUTOPRECH_EN
- oris r5,r5,0x0001 /* set auto precharge EN bit */
-#endif
- stw r5,SD_D0_CTRL(r4)
- LOAD_U32(r5,VAL_SD_D0_BAR)
- stw r5,SD_D0_BAR(r4)
- sync
-
- /* Initialize DIMM1 control and BAR registers
- * (same as dimm 0, next 512MB, disabled)
- */
- LOAD_U32(r5,VAL_SD_D1_CTRL) /* auto-precharge disabled */
-#ifdef SDC_AUTOPRECH_EN
- oris r5,r5,0x0001 /* set auto precharge EN bit */
-#endif
- stw r5,SD_D1_CTRL(r4)
- LOAD_U32(r5,VAL_SD_D1_BAR)
- stw r5,SD_D1_BAR(r4)
- sync
-#else /* !SDC_HARDCODED_INIT */
- bl tsi108_sdram_spd /* automatically detect SDC settings */
-#endif /* SDC_HARDCODED_INIT */
-
-sdc_init_done:
-
-#ifdef DISABLE_PBM
- LOAD_U32(r5,0x00000030) /* PB_EN + OCN_EN */
-#else
- LOAD_U32(r5,0x00000230) /* PB_EN + OCN_EN + PB/OCN=80/20 */
-#endif /* DISABLE_PBM */
-
-#ifdef CONFIG_TSI108EMU
- oris r5,r5,0x0010 /* set EMULATION_MODE bit */
-#endif
-
- stw r5,SD_CTRL(r4)
- eieio
- sync
-
- /* Enable SDRAM access */
-
- oris r5,r5,0x8000 /* start SDC: set SD_CTRL[ENABLE] bit */
- stw r5,SD_CTRL(r4)
- sync
-
-wait_init_complete:
- lwz r5,SD_STATUS(r4)
- andi. r5,r5,0x0001
- /* wait until SDRAM initialization is complete */
- beq wait_init_complete
-
- /* Map SDRAM into the processor bus address space */
-
- ori r4,r29,TSI108_PB_REG_OFFSET
-
- /* Setup BARs associated with direct path PB<->SDRAM */
-
- /* PB_SDRAM_BAR1:
- * provides a direct path to the main system memory (cacheable SDRAM)
- */
-
- /* BA=0,Size=512MB, ENable, No Addr.Translation */
- LOAD_U32(r5, 0x00000011)
- stw r5,PB_SDRAM_BAR1(r4)
- sync
-
- /* Make sure that PB_SDRAM_BAR1 decoder is set
- * (to allow following immediate read from SDRAM)
- */
- lwz r5,PB_SDRAM_BAR1(r4)
- sync
-
- /* PB_SDRAM_BAR2:
- * provides non-cacheable alias (via the direct path) to main
- * system memory.
- * Size = 512MB, ENable, Addr.Translation - ON,
- * BA = 0x0_40000000, TA = 0x0_00000000
- */
-
- LOAD_U32(r5, 0x40010011)
- stw r5,PB_SDRAM_BAR2(r4)
- sync
-
- /* Make sure that PB_SDRAM_BAR2 decoder is set
- * (to allow following immediate read from SDRAM)
- */
- lwz r5,PB_SDRAM_BAR2(r4)
- sync
-
-init_done:
-
- /* All done. Restore LR and return. */
- mtlr r19
- blr
-
-#if (0)
- /*
- * init_cpu1
- * This routine enables CPU1 on the dual-processor system.
- * Now there is only one processor in the system
- */
-
- .global enable_cpu1
-enable_cpu1:
-
- lis r3,Tsi108_Base@ha /* Get Grendel CSR Base Addr */
- addi r3,r3,Tsi108_Base@l
- lwz r3,0(r3) /* R3 = CSR Base Addr */
- ori r4,r3,TSI108_PB_REG_OFFSET
- lwz r3,PB_ARB_CTRL(r4) /* Read PB Arbiter Control Register */
- ori r3,r3,0x0200 /* Set M1_EN bit */
- stw r3,PB_ARB_CTRL(r4)
-
- blr
-#endif
-
- /*
- * enable_EI
- * Enable CPU core external interrupt
- */
-
- .global enable_EI
-enable_EI:
- mfmsr r3
- ori r3,r3,0x8000 /* set EE bit */
- mtmsr r3
- blr
-
- /*
- * disable_EI
- * Disable CPU core external interrupt
- */
-
- .global disable_EI
-disable_EI:
- mfmsr r3
- li r4,-32768 /* aka "li r4,0x8000" */
- andc r3,r3,r4 /* clear EE bit */
- mtmsr r3
- blr
-
-#ifdef ENABLE_SDRAM_ECC
- /* enables SDRAM ECC */
-
- .global enable_ECC
-enable_ECC:
- ori r4,r29,TSI108_SD_REG_OFFSET
- lwz r3,SD_ECC_CTRL(r4) /* Read SDRAM ECC Control Register */
- ori r3,r3,0x0001 /* Set ECC_EN bit */
- stw r3,SD_ECC_CTRL(r4)
- blr
-
- /*
- * clear_ECC_err
- * Clears all pending SDRAM ECC errors
- * (normally after SDRAM scrubbing/initialization)
- */
-
- .global clear_ECC_err
-clear_ECC_err:
- ori r4,r29,TSI108_SD_REG_OFFSET
- ori r3,r0,0x0030 /* ECC_UE_INT + ECC_CE_INT bits */
- stw r3,SD_INT_STATUS(r4)
- blr
-
-#endif /* ENABLE_SDRAM_ECC */
-
-#ifndef SDC_HARDCODED_INIT
-
- /* SDRAM SPD Support */
-#define SD_I2C_CTRL1 (0x400)
-#define SD_I2C_CTRL2 (0x404)
-#define SD_I2C_RD_DATA (0x408)
-#define SD_I2C_WR_DATA (0x40C)
-
- /*
- * SDRAM SPD Support Macros
- */
-
-#define SPD_DIMM0 (0x00000100)
-#define SPD_DIMM1 (0x00000200) /* SPD_DIMM1 was 0x00000000 */
-
-#define SPD_RDIMM (0x01)
-#define SPD_UDIMM (0x02)
-
-#define SPD_CAS_3 0x8
-#define SPD_CAS_4 0x10
-#define SPD_CAS_5 0x20
-
-#define ERR_NO_DIMM_FOUND (0xdb0)
-#define ERR_TRAS_FAIL (0xdb1)
-#define ERR_TRCD_FAIL (0xdb2)
-#define ERR_TRP_FAIL (0xdb3)
-#define ERR_TWR_FAIL (0xdb4)
-#define ERR_UNKNOWN_PART (0xdb5)
-#define ERR_NRANK_INVALID (0xdb6)
-#define ERR_DIMM_SIZE (0xdb7)
-#define ERR_ADDR_MODE (0xdb8)
-#define ERR_RFRSH_RATE (0xdb9)
-#define ERR_DIMM_TYPE (0xdba)
-#define ERR_CL_VALUE (0xdbb)
-#define ERR_TRFC_FAIL (0xdbc)
-
-/* READ_SPD requirements:
- * byte - byte address in SPD device (0 - 255)
- * r3 = will return data read from I2C Byte location
- * r4 - unchanged (SDC base addr)
- * r5 - clobbered in routine (I2C status)
- * r10 - number of DDR slot where first SPD device is detected
- */
-
-#define READ_SPD(byte_num) \
- addis r3, 0, byte_num@l; \
- or r3, r3, r10; \
- ori r3, r3, 0x0A; \
- stw r3, SD_I2C_CTRL1(r4); \
- li r3, I2C_CNTRL2_START; \
- stw r3, SD_I2C_CTRL2(r4); \
- eieio; \
- sync; \
- li r3, 0x100; \
-1:; \
- addic. r3, r3, -1; \
- bne 1b; \
-2:; \
- lwz r5, SD_I2C_CTRL2(r4); \
- rlwinm. r3,r5,0,23,23; \
- bne 2b; \
- rlwinm. r3,r5,0,3,3; \
- lwz r3,SD_I2C_RD_DATA(r4)
-
-#define SPD_MIN_RFRSH (0x80)
-#define SPD_MAX_RFRSH (0x85)
-
-refresh_rates: /* in nSec */
- .long 15625 /* Normal (0x80) */
- .long 3900 /* Reduced 0.25x (0x81) */
- .long 7800 /* Reduced 0.5x (0x82) */
- .long 31300 /* Extended 2x (0x83) */
- .long 62500 /* Extended 4x (0x84) */
- .long 125000 /* Extended 8x (0x85) */
-
-/*
- * tsi108_sdram_spd
- *
- * Inittializes SDRAM Controller using DDR2 DIMM Serial Presence Detect data
- * Uses registers: r4 - SDC base address (not changed)
- * r9 - SDC clocking period in nSec
- * Changes registers: r3,r5,r6,r7,r8,r10,r11
- */
-
-tsi108_sdram_spd:
-
- li r10,SPD_DIMM0
- xor r11,r11,r11 /* DIMM Base Address: starts from 0 */
-
-do_first_dimm:
-
- /* Program Refresh Rate Register */
-
- READ_SPD(12) /* get Refresh Rate */
- beq check_next_slot
- li r5, ERR_RFRSH_RATE
- cmpi 0,0,r3,SPD_MIN_RFRSH
- ble spd_fail
- cmpi 0,0,r3,SPD_MAX_RFRSH
- bgt spd_fail
- addi r3,r3,-SPD_MIN_RFRSH
- rlwinm r3,r3,2,0,31
- lis r5,refresh_rates@h
- ori r5,r5,refresh_rates@l
- lwzx r5,r5,r3 /* get refresh rate in nSec */
- divwu r5,r5,r9 /* calculate # of SDC clocks */
- stw r5,SD_REFRESH(r4) /* Set refresh rate */
- sync
-
- /* Program SD Timing Register */
-
- li r7, 0 /* clear r7 prior parameter collection */
-
- READ_SPD(20) /* get DIMM type: Registered or Unbuffered */
- beq spd_read_fail
- li r5, ERR_DIMM_TYPE
- cmpi 0,0,r3,SPD_UDIMM
- beq do_cl
- cmpi 0,0,r3,SPD_RDIMM
- bne spd_fail
- oris r7,r7,0x1000 /* set SD_TIMING[DIMM_TYPE] bit */
-
-do_cl:
- READ_SPD(18) /* Get CAS Latency */
- beq spd_read_fail
- li r5,ERR_CL_VALUE
- andi. r6,r3,SPD_CAS_3
- beq cl_4
- li r6,3
- b set_cl
-cl_4:
- andi. r6,r3,SPD_CAS_4
- beq cl_5
- li r6,4
- b set_cl
-cl_5:
- andi. r6,r3,SPD_CAS_5
- beq spd_fail
- li r6,5
-set_cl:
- rlwimi r7,r6,24,5,7
-
- READ_SPD(30) /* Get tRAS */
- beq spd_read_fail
- divwu r6,r3,r9
- mullw r8,r6,r9
- subf. r8,r8,r3
- beq set_tras
- addi r6,r6,1
-set_tras:
- li r5,ERR_TRAS_FAIL
- cmpi 0,0,r6,0x0F /* max supported value */
- bgt spd_fail
- rlwimi r7,r6,16,12,15
-
- READ_SPD(29) /* Get tRCD */
- beq spd_read_fail
- /* right shift tRCD by 2 bits as per DDR2 spec */
- rlwinm r3,r3,30,2,31
- divwu r6,r3,r9
- mullw r8,r6,r9
- subf. r8,r8,r3
- beq set_trcd
- addi r6,r6,1
-set_trcd:
- li r5,ERR_TRCD_FAIL
- cmpi 0,0,r6,0x07 /* max supported value */
- bgt spd_fail
- rlwimi r7,r6,12,17,19
-
- READ_SPD(27) /* Get tRP value */
- beq spd_read_fail
- rlwinm r3,r3,30,2,31 /* right shift tRP by 2 bits as per DDR2 spec */
- divwu r6,r3,r9
- mullw r8,r6,r9
- subf. r8,r8,r3
- beq set_trp
- addi r6,r6,1
-set_trp:
- li r5,ERR_TRP_FAIL
- cmpi 0,0,r6,0x07 /* max supported value */
- bgt spd_fail
- rlwimi r7,r6,8,21,23
-
- READ_SPD(36) /* Get tWR value */
- beq spd_read_fail
- rlwinm r3,r3,30,2,31 /* right shift tWR by 2 bits as per DDR2 spec */
- divwu r6,r3,r9
- mullw r8,r6,r9
- subf. r8,r8,r3
- beq set_twr
- addi r6,r6,1
-set_twr:
- addi r6,r6,-1 /* Tsi108 SDC always gives one extra clock */
- li r5,ERR_TWR_FAIL
- cmpi 0,0,r6,0x07 /* max supported value */
- bgt spd_fail
- rlwimi r7,r6,5,24,26
-
- READ_SPD(42) /* Get tRFC */
- beq spd_read_fail
- li r5, ERR_TRFC_FAIL
- /* Tsi108 spec: tRFC=(tRFC + 1)/2 */
- addi r3,r3,1
- rlwinm. r3,r3,31,1,31 /* divide by 2 */
- beq spd_fail
- divwu r6,r3,r9
- mullw r8,r6,r9
- subf. r8,r8,r3
- beq set_trfc
- addi r6,r6,1
-set_trfc:
- cmpi 0,0,r6,0x1F /* max supported value */
- bgt spd_fail
- rlwimi r7,r6,0,27,31
-
- stw r7,SD_TIMING(r4)
- sync
-
- /*
- * The following two registers are set on per-DIMM basis.
- * The SD_REFRESH and SD_TIMING settings are common for both DIMMS
- */
-
-do_each_dimm:
-
- /* Program SDRAM DIMM Control Register */
-
- li r7, 0 /* clear r7 prior parameter collection */
-
- READ_SPD(13) /* Get Primary SDRAM Width */
- beq spd_read_fail
- cmpi 0,0,r3,4 /* Check for 4-bit SDRAM */
- beq do_nbank
- oris r7,r7,0x0010 /* Set MEM_WIDTH bit */
-
-do_nbank:
- READ_SPD(17) /* Get Number of banks on SDRAM device */
- beq spd_read_fail
- /* Grendel only distinguish betw. 4 or 8-bank memory parts */
- li r5,ERR_UNKNOWN_PART /* non-supported memory part */
- cmpi 0,0,r3,4
- beq do_nrank
- cmpi 0,0,r3,8
- bne spd_fail
- ori r7,r7,0x1000
-
-do_nrank:
- READ_SPD(5) /* Get # of Ranks */
- beq spd_read_fail
- li r5,ERR_NRANK_INVALID
- andi. r6,r3,0x7 /* Use bits [2..0] only */
- beq do_addr_mode
- cmpi 0,0,r6,1
- bgt spd_fail
- rlwimi r7,r6,8,23,23
-
-do_addr_mode:
- READ_SPD(4) /* Get # of Column Addresses */
- beq spd_read_fail
- li r5, ERR_ADDR_MODE
- andi. r3,r3,0x0f /* cut off reserved bits */
- cmpi 0,0,r3,8
- ble spd_fail
- cmpi 0,0,r3,15
- bgt spd_fail
- addi r6,r3,-8 /* calculate ADDR_MODE parameter */
- rlwimi r7,r6,4,24,27 /* set ADDR_MODE field */
-
-set_dimm_ctrl:
-#ifdef SDC_AUTOPRECH_EN
- oris r7,r7,0x0001 /* set auto precharge EN bit */
-#endif
- ori r7,r7,1 /* set ENABLE bit */
- cmpi 0,0,r10,SPD_DIMM0
- bne 1f
- stw r7,SD_D0_CTRL(r4)
- sync
- b set_dimm_bar
-1:
- stw r7,SD_D1_CTRL(r4)
- sync
-
-
- /* Program SDRAM DIMMx Base Address Register */
-
-set_dimm_bar:
- READ_SPD(5) /* get # of Ranks */
- beq spd_read_fail
- andi. r7,r3,0x7
- addi r7,r7,1
- READ_SPD(31) /* Read DIMM rank density */
- beq spd_read_fail
- rlwinm r5,r3,27,29,31
- rlwinm r6,r3,3,24,28
- or r5,r6,r5 /* r5 = Normalized Rank Density byte */
- lis r8, 0x0080 /* 128MB >> 4 */
- mullw r8,r8,r5 /* r8 = (rank_size >> 4) */
- mullw r8,r8,r7 /* r8 = (DIMM_size >> 4) */
- neg r7,r8
- rlwinm r7,r7,28,4,31
- or r7,r7,r11 /* set ADDR field */
- rlwinm r8,r8,12,20,31
- add r11,r11,r8 /* set Base Addr for next DIMM */
-
- cmpi 0,0,r10,SPD_DIMM0
- bne set_dimm1_size
- stw r7,SD_D0_BAR(r4)
- sync
- li r10,SPD_DIMM1
- READ_SPD(0)
- bne do_each_dimm
- b spd_done
-
-set_dimm1_size:
- stw r7,SD_D1_BAR(r4)
- sync
-spd_done:
- blr
-
-check_next_slot:
- cmpi 0,0,r10,SPD_DIMM1
- beq spd_read_fail
- li r10,SPD_DIMM1
- b do_first_dimm
-spd_read_fail:
- ori r3,r0,0xdead
- b err_hung
-spd_fail:
- li r3,0x0bad
- sync
-err_hung: /* hang here for debugging */
- nop
- nop
- b err_hung
-
-#endif /* !SDC_HARDCODED_INIT */
+++ /dev/null
-#
-# Copyright (c) 2005 Freescale Semiconductor, Inc.
-#
-# 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
-#
-
-# Flash address
-TEXT_BASE = 0xFF000000
-# RAM address
-#TEXT_BASE = 0x00400000
-
-PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -maltivec -mabi=altivec -msoft-float
+++ /dev/null
-/*
- * (C) Copyright 2005 Freescale Semiconductor, Inc.
- *
- * Roy Zang <tie-fei.zang@freescale.com>
- *
- * 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
- *
- * modifications for the Tsi108 Emul Board by avb@Tundra
- */
-
-/*
- * board support/init functions for the
- * Freescale MPC7448 HPC2 (High-Performance Computing 2 Platform).
- */
-
-#include <common.h>
-#include <74xx_7xx.h>
-#if defined(CONFIG_OF_FLAT_TREE)
-#include <ft_build.h>
-extern void ft_cpu_setup (void *blob, bd_t *bd);
-#endif
-
-#undef DEBUG
-
-DECLARE_GLOBAL_DATA_PTR;
-
-extern void flush_data_cache (void);
-extern void invalidate_l1_instruction_cache (void);
-extern void tsi108_init_f (void);
-
-int display_mem_map (void);
-
-void after_reloc (ulong dest_addr)
-{
- /*
- * Jump to the main U-Boot board init code
- */
- board_init_r ((gd_t *) gd, dest_addr);
- /* NOTREACHED */
-}
-
-/*
- * Check Board Identity:
- * report board type
- */
-
-int checkboard (void)
-{
- int l_type = 0;
-
- printf ("BOARD: %s\n", CFG_BOARD_NAME);
- return (l_type);
-}
-
-/*
- * Read Processor ID:
- *
- * report calling processor number
- */
-
-int read_pid (void)
-{
- return 0; /* we are on single CPU platform for a while */
-}
-
-long int dram_size (int board_type)
-{
- return 0x20000000; /* 256M bytes */
-}
-
-long int initdram (int board_type)
-{
- return dram_size (board_type);
-}
-
-#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
-void
-ft_board_setup (void *blob, bd_t *bd)
-{
- u32 *p;
- int len;
-
- ft_cpu_setup (blob, bd);
-
- p = ft_get_prop (blob, "/memory/reg", &len);
- if (p != NULL) {
- *p++ = cpu_to_be32 (bd->bi_memstart);
- *p = cpu_to_be32 (bd->bi_memsize);
- }
-}
-#endif
+++ /dev/null
-/*****************************************************************************
- * (C) Copyright 2003; Tundra Semiconductor Corp.
- *
- * 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
- *****************************************************************************/
-
-/*----------------------------------------------------------------------------
- * FILENAME: tsi108_init.c
- *
- * Originator: Alex Bounine
- *
- * DESCRIPTION:
- * Initialization code for the Tundra Tsi108 bridge chip
- *---------------------------------------------------------------------------*/
-
-#include <common.h>
-#include <74xx_7xx.h>
-#include <config.h>
-#include <version.h>
-#include <asm/processor.h>
-#include <tsi108.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-extern void mpicInit (int verbose);
-
-/*
- * Configuration Options
- */
-
-typedef struct {
- ulong upper;
- ulong lower;
-} PB2OCN_LUT_ENTRY;
-
-PB2OCN_LUT_ENTRY pb2ocn_lut1[32] = {
- /* 0 - 7 */
- {0x00000000, 0x00000201}, /* PBA=0xE000_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE100_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE200_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE300_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE400_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE500_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE600_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE700_0000 -> PCI/X (Byte-Swap) */
-
- /* 8 - 15 */
- {0x00000000, 0x00000201}, /* PBA=0xE800_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xE900_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xEA00_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xEB00_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xEC00_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xED00_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xEE00_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xEF00_0000 -> PCI/X (Byte-Swap) */
-
- /* 16 - 23 */
- {0x00000000, 0x00000201}, /* PBA=0xF000_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF100_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF200_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF300_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF400_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF500_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF600_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF700_0000 -> PCI/X (Byte-Swap) */
- /* 24 - 31 */
- {0x00000000, 0x00000201}, /* PBA=0xF800_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xF900_0000 -> PCI/X (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xFA00_0000 -> PCI/X PCI I/O (Byte-Swap) */
- {0x00000000, 0x00000201}, /* PBA=0xFB00_0000 -> PCI/X PCI Config (Byte-Swap) */
-
- {0x00000000, 0x02000240}, /* PBA=0xFC00_0000 -> HLP */
- {0x00000000, 0x01000240}, /* PBA=0xFD00_0000 -> HLP */
- {0x00000000, 0x03000240}, /* PBA=0xFE00_0000 -> HLP */
- {0x00000000, 0x00000240} /* PBA=0xFF00_0000 -> HLP : (Translation Enabled + Byte-Swap)*/
-};
-
-#ifdef CFG_CLK_SPREAD
-typedef struct {
- ulong ctrl0;
- ulong ctrl1;
-} PLL_CTRL_SET;
-
-/*
- * Clock Generator SPLL0 initialization values
- * PLL0 configuration table for various PB_CLKO freq.
- * Uses pre-calculated values for Fs = 30 kHz, D = 0.5%
- * Fout depends on required PB_CLKO. Based on Fref = 33 MHz
- */
-
-static PLL_CTRL_SET pll0_config[8] = {
- {0x00000000, 0x00000000}, /* 0: bypass */
- {0x00000000, 0x00000000}, /* 1: reserved */
- {0x00430044, 0x00000043}, /* 2: CG_PB_CLKO = 183 MHz */
- {0x005c0044, 0x00000039}, /* 3: CG_PB_CLKO = 100 MHz */
- {0x005c0044, 0x00000039}, /* 4: CG_PB_CLKO = 133 MHz */
- {0x004a0044, 0x00000040}, /* 5: CG_PB_CLKO = 167 MHz */
- {0x005c0044, 0x00000039}, /* 6: CG_PB_CLKO = 200 MHz */
- {0x004f0044, 0x0000003e} /* 7: CG_PB_CLKO = 233 MHz */
-};
-#endif /* CFG_CLK_SPREAD */
-
-/*
- * Prosessor Bus Clock (in MHz) defined by CG_PB_SELECT
- * (based on recommended Tsi108 reference clock 33MHz)
- */
-static int pb_clk_sel[8] = { 0, 0, 183, 100, 133, 167, 200, 233 };
-
-/*
- * get_board_bus_clk ()
- *
- * returns the bus clock in Hz.
- */
-unsigned long get_board_bus_clk (void)
-{
- ulong i;
-
- /* Detect PB clock freq. */
- i = in32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS);
- i = (i >> 16) & 0x07; /* Get PB PLL multiplier */
-
- return pb_clk_sel[i] * 1000000;
-}
-
-/*
- * board_early_init_f ()
- *
- * board-specific initialization executed from flash
- */
-
-int board_early_init_f (void)
-{
- ulong i;
-
- gd->mem_clk = 0;
- i = in32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET +
- CG_PWRUP_STATUS);
- i = (i >> 20) & 0x07; /* Get GD PLL multiplier */
- switch (i) {
- case 0: /* external clock */
- printf ("Using external clock\n");
- break;
- case 1: /* system clock */
- gd->mem_clk = gd->bus_clk;
- break;
- case 4: /* 133 MHz */
- case 5: /* 166 MHz */
- case 6: /* 200 MHz */
- gd->mem_clk = pb_clk_sel[i] * 1000000;
- break;
- default:
- printf ("Invalid DDR2 clock setting\n");
- return -1;
- }
- printf ("BUS: %d MHz\n", get_board_bus_clk() / 1000000);
- printf ("MEM: %d MHz\n", gd->mem_clk / 1000000);
- return 0;
-}
-
-/*
- * board_early_init_r() - Tsi108 initialization function executed right after
- * relocation. Contains code that cannot be executed from flash.
- */
-
-int board_early_init_r (void)
-{
- ulong temp, i;
- ulong reg_val;
- volatile ulong *reg_ptr;
-
- reg_ptr =
- (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x900);
-
- for (i = 0; i < 32; i++) {
- *reg_ptr++ = 0x00000201; /* SWAP ENABLED */
- *reg_ptr++ = 0x00;
- }
-
- __asm__ __volatile__ ("eieio");
- __asm__ __volatile__ ("sync");
-
- /* Setup PB_OCN_BAR2: size 256B + ENable @ 0x0_80000000 */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2,
- 0x80000001);
- __asm__ __volatile__ ("sync");
-
- /* Make sure that OCN_BAR2 decoder is set (to allow following immediate
- * read from SDRAM)
- */
-
- temp = in32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR2);
- __asm__ __volatile__ ("sync");
-
- /*
- * Remap PB_OCN_BAR1 to accomodate PCI-bus aperture and EPROM into the
- * processor bus address space. Immediately after reset LUT and address
- * translation are disabled for this BAR. Now we have to initialize LUT
- * and switch from the BOOT mode to the normal operation mode.
- *
- * The aperture defined by PB_OCN_BAR1 startes at address 0xE0000000
- * and covers 512MB of address space. To allow larger aperture we also
- * have to relocate register window of Tsi108
- *
- * Initialize LUT (32-entries) prior switching PB_OCN_BAR1 from BOOT
- * mode.
- *
- * initialize pointer to LUT associated with PB_OCN_BAR1
- */
- reg_ptr =
- (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + 0x800);
-
- for (i = 0; i < 32; i++) {
- *reg_ptr++ = pb2ocn_lut1[i].lower;
- *reg_ptr++ = pb2ocn_lut1[i].upper;
- }
-
- __asm__ __volatile__ ("sync");
-
- /* Base addresses for CS0, CS1, CS2, CS3 */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_ADDR,
- 0x00000000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_ADDR,
- 0x00100000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_ADDR,
- 0x00200000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_ADDR,
- 0x00300000);
- __asm__ __volatile__ ("sync");
-
- /* Masks for HLP banks */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_MASK,
- 0xFFF00000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_MASK,
- 0xFFF00000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_MASK,
- 0xFFF00000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_MASK,
- 0xFFF00000);
- __asm__ __volatile__ ("sync");
-
- /* Set CTRL0 values for banks */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL0,
- 0x7FFC44C2);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL0,
- 0x7FFC44C0);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL0,
- 0x7FFC44C0);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL0,
- 0x7FFC44C2);
- __asm__ __volatile__ ("sync");
-
- /* Set banks to latched mode, enabled, and other default settings */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B0_CTRL1,
- 0x7C0F2000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B1_CTRL1,
- 0x7C0F2000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B2_CTRL1,
- 0x7C0F2000);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_HLP_REG_OFFSET + HLP_B3_CTRL1,
- 0x7C0F2000);
- __asm__ __volatile__ ("sync");
-
- /*
- * Set new value for PB_OCN_BAR1: switch from BOOT to LUT mode.
- * value for PB_OCN_BAR1: (BA-0xE000_0000 + size 512MB + ENable)
- */
- out32 (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1,
- 0xE0000011);
- __asm__ __volatile__ ("sync");
-
- /* Make sure that OCN_BAR2 decoder is set (to allow following
- * immediate read from SDRAM)
- */
-
- temp = in32(CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_OCN_BAR1);
- __asm__ __volatile__ ("sync");
-
- /*
- * SRI: At this point we have enabled the HLP banks. That means we can
- * now read from the NVRAM and initialize the environment variables.
- * We will over-ride the env_init called in board_init_f
- * This is really a work-around because, the HLP bank 1
- * where NVRAM resides is not visible during board_init_f
- * (lib_ppc/board.c)
- * Alternatively, we could use the I2C EEPROM at start-up to configure
- * and enable all HLP banks and not just HLP 0 as is being done for
- * Taiga Rev. 2.
- */
-
- env_init ();
-
-#ifndef DISABLE_PBM
-
- /*
- * For IBM processors we have to set Address-Only commands generated
- * by PBM that are different from ones set after reset.
- */
-
- temp = get_cpu_type ();
-
- if ((CPU_750FX == temp) || (CPU_750GX == temp))
- out32 (CFG_TSI108_CSR_BASE + TSI108_PB_REG_OFFSET + PB_MCMD,
- 0x00009955);
-#endif /* DISABLE_PBM */
-
-#ifdef CONFIG_PCI
- /*
- * Initialize PCI/X block
- */
-
- /* Map PCI/X Configuration Space (16MB @ 0x0_FE000000) */
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET +
- PCI_PFAB_BAR0_UPPER, 0);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_BAR0,
- 0xFB000001);
- __asm__ __volatile__ ("sync");
-
- /* Set Bus Number for the attached PCI/X bus (we will use 0 for NB) */
-
- temp = in32(CFG_TSI108_CSR_BASE +
- TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT);
-
- temp &= ~0xFF00; /* Clear the BUS_NUM field */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PCIX_STAT,
- temp);
-
- /* Map PCI/X IO Space (64KB @ 0x0_FD000000) takes one 16MB LUT entry */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO_UPPER,
- 0);
- __asm__ __volatile__ ("sync");
-
- /* This register is on the PCI side to interpret the address it receives
- * and maps it as a IO address.
- */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_PFAB_IO,
- 0xFA000001);
- __asm__ __volatile__ ("sync");
-
- /*
- * Map PCI/X Memory Space
- *
- * Transactions directed from OCM to PCI Memory Space are directed
- * from PB to PCI
- * unchanged (as defined by PB_OCN_BAR1,2 and LUT settings).
- * If address remapping is required the corresponding PCI_PFAB_MEM32
- * and PCI_PFAB_PFMx register groups have to be configured.
- *
- * Map the path from the PCI/X bus into the system memory
- *
- * The memory mapped window assotiated with PCI P2O_BAR2 provides
- * access to the system memory without address remapping.
- * All system memory is opened for accesses initiated by PCI/X bus
- * masters.
- *
- * Initialize LUT associated with PCI P2O_BAR2
- *
- * set pointer to LUT associated with PCI P2O_BAR2
- */
-
- reg_ptr =
- (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x500);
-
-#ifdef DISABLE_PBM
-
- /* In case when PBM is disabled (no HW supported cache snoopng on PB)
- * P2O_BAR2 is directly mapped into the system memory without address
- * translation.
- */
-
- reg_val = 0x00000004; /* SDRAM port + NO Addr_Translation */
-
- for (i = 0; i < 32; i++) {
- *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */
- *reg_ptr++ = 0; /* P2O_BAR2_LUT_UPPERx */
- }
-
- /* value for PCI BAR2 (size = 512MB, Enabled, No Addr. Translation) */
- reg_val = 0x00007500;
-#else
-
- reg_val = 0x00000002; /* Destination port = PBM */
-
- for (i = 0; i < 32; i++) {
- *reg_ptr++ = reg_val; /* P2O_BAR2_LUTx */
-/* P2O_BAR2_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */
- *reg_ptr++ = 0x40000000;
-/* offset = 16MB, address translation is enabled to allow byte swapping */
- reg_val += 0x01000000;
- }
-
-/* value for PCI BAR2 (size = 512MB, Enabled, Address Translation Enabled) */
- reg_val = 0x00007100;
-#endif
-
- __asm__ __volatile__ ("eieio");
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES,
- reg_val);
- __asm__ __volatile__ ("sync");
-
- /* Set 64-bit PCI bus address for system memory
- * ( 0 is the best choice for easy mapping)
- */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2,
- 0x00000000);
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR2_UPPER,
- 0x00000000);
- __asm__ __volatile__ ("sync");
-
-#ifndef DISABLE_PBM
- /*
- * The memory mapped window assotiated with PCI P2O_BAR3 provides
- * access to the system memory using SDRAM OCN port and address
- * translation. This is alternative way to access SDRAM from PCI
- * required for Tsi108 emulation testing.
- * All system memory is opened for accesses initiated by
- * PCI/X bus masters.
- *
- * Initialize LUT associated with PCI P2O_BAR3
- *
- * set pointer to LUT associated with PCI P2O_BAR3
- */
- reg_ptr =
- (ulong *) (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + 0x600);
-
- reg_val = 0x00000004; /* Destination port = SDC */
-
- for (i = 0; i < 32; i++) {
- *reg_ptr++ = reg_val; /* P2O_BAR3_LUTx */
-
-/* P2O_BAR3_LUT_UPPERx : Set data swapping mode for PBM (byte swapping) */
- *reg_ptr++ = 0;
-
-/* offset = 16MB, address translation is enabled to allow byte swapping */
- reg_val += 0x01000000;
- }
-
- __asm__ __volatile__ ("eieio");
- __asm__ __volatile__ ("sync");
-
- /* Configure PCI P2O_BAR3 (size = 512MB, Enabled) */
-
- reg_val =
- in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET +
- PCI_P2O_PAGE_SIZES);
- reg_val &= ~0x00FF;
- reg_val |= 0x0071;
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_PAGE_SIZES,
- reg_val);
- __asm__ __volatile__ ("sync");
-
- /* Set 64-bit base PCI bus address for window (0x20000000) */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3_UPPER,
- 0x00000000);
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR3,
- 0x20000000);
- __asm__ __volatile__ ("sync");
-
-#endif /* !DISABLE_PBM */
-
-#ifdef ENABLE_PCI_CSR_BAR
- /* open if required access to Tsi108 CSRs from the PCI/X bus */
- /* enable BAR0 on the PCI/X bus */
- reg_val = in32(CFG_TSI108_CSR_BASE +
- TSI108_PCI_REG_OFFSET + PCI_MISC_CSR);
- reg_val |= 0x02;
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_MISC_CSR,
- reg_val);
- __asm__ __volatile__ ("sync");
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0_UPPER,
- 0x00000000);
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_P2O_BAR0,
- CFG_TSI108_CSR_BASE);
- __asm__ __volatile__ ("sync");
-
-#endif
-
- /*
- * Finally enable PCI/X Bus Master and Memory Space access
- */
-
- reg_val = in32(CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR);
- reg_val |= 0x06;
- out32 (CFG_TSI108_CSR_BASE + TSI108_PCI_REG_OFFSET + PCI_CSR, reg_val);
- __asm__ __volatile__ ("sync");
-
-#endif /* CONFIG_PCI */
-
- /*
- * Initialize MPIC outputs (interrupt pins):
- * Interrupt routing on the Grendel Emul. Board:
- * PB_INT[0] -> INT (CPU0)
- * PB_INT[1] -> INT (CPU1)
- * PB_INT[2] -> MCP (CPU0)
- * PB_INT[3] -> MCP (CPU1)
- * Set interrupt controller outputs as Level_Sensitive/Active_Low
- */
- out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(0), 0x02);
- out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(1), 0x02);
- out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(2), 0x02);
- out32 (CFG_TSI108_CSR_BASE + TSI108_MPIC_REG_OFFSET + MPIC_CSR(3), 0x02);
- __asm__ __volatile__ ("sync");
-
- /*
- * Ensure that Machine Check exception is enabled
- * We need it to support PCI Bus probing (configuration reads)
- */
-
- reg_val = mfmsr ();
- mtmsr(reg_val | MSR_ME);
-
- return 0;
-}
-
-/*
- * Needed to print out L2 cache info
- * used in the misc_init_r function
- */
-
-unsigned long get_l2cr (void)
-{
- unsigned long l2controlreg;
- asm volatile ("mfspr %0, 1017":"=r" (l2controlreg):);
- return l2controlreg;
-}
-
-/*
- * misc_init_r()
- *
- * various things to do after relocation
- *
- */
-
-int misc_init_r (void)
-{
-#ifdef CFG_CLK_SPREAD /* Initialize Spread-Spectrum Clock generation */
- ulong i;
-
- /* Ensure that Spread-Spectrum is disabled */
- out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, 0);
- out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0, 0);
-
- /* Initialize PLL1: CG_PCI_CLK , internal OCN_CLK
- * Uses pre-calculated value for Fout = 800 MHz, Fs = 30 kHz, D = 0.5%
- */
-
- out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0,
- 0x002e0044); /* D = 0.25% */
- out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL1,
- 0x00000039); /* BWADJ */
-
- /* Initialize PLL0: CG_PB_CLKO */
- /* Detect PB clock freq. */
- i = in32(CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PWRUP_STATUS);
- i = (i >> 16) & 0x07; /* Get PB PLL multiplier */
-
- out32 (CFG_TSI108_CSR_BASE +
- TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0, pll0_config[i].ctrl0);
- out32 (CFG_TSI108_CSR_BASE +
- TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL1, pll0_config[i].ctrl1);
-
- /* Wait and set SSEN for both PLL0 and 1 */
- udelay (1000);
- out32 (CFG_TSI108_CSR_BASE + TSI108_CLK_REG_OFFSET + CG_PLL1_CTRL0,
- 0x802e0044); /* D=0.25% */
- out32 (CFG_TSI108_CSR_BASE +
- TSI108_CLK_REG_OFFSET + CG_PLL0_CTRL0,
- 0x80000000 | pll0_config[i].ctrl0);
-#endif /* CFG_CLK_SPREAD */
-
-#ifdef CFG_L2
- l2cache_enable ();
-#endif
- printf ("BUS: %d MHz\n", gd->bus_clk / 1000000);
- printf ("MEM: %d MHz\n", gd->mem_clk / 1000000);
-
- /*
- * All the information needed to print the cache details is avaiblable
- * at this point i.e. above call to l2cache_enable is the very last
- * thing done with regards to enabling diabling the cache.
- * So this seems like a good place to print all this information
- */
-
- printf ("CACHE: ");
- switch (get_cpu_type()) {
- case CPU_7447A:
- printf ("L1 Instruction cache - 32KB 8-way");
- (get_hid0 () & (1 << 15)) ? printf (" ENABLED\n") :
- printf (" DISABLED\n");
- printf ("L1 Data cache - 32KB 8-way");
- (get_hid0 () & (1 << 14)) ? printf (" ENABLED\n") :
- printf (" DISABLED\n");
- printf ("Unified L2 cache - 512KB 8-way");
- (get_l2cr () & (1 << 31)) ? printf (" ENABLED\n") :
- printf (" DISABLED\n");
- printf ("\n");
- break;
-
- case CPU_7448:
- printf ("L1 Instruction cache - 32KB 8-way");
- (get_hid0 () & (1 << 15)) ? printf (" ENABLED\n") :
- printf (" DISABLED\n");
- printf ("L1 Data cache - 32KB 8-way");
- (get_hid0 () & (1 << 14)) ? printf (" ENABLED\n") :
- printf (" DISABLED\n");
- printf ("Unified L2 cache - 1MB 8-way");
- (get_l2cr () & (1 << 31)) ? printf (" ENABLED\n") :
- printf (" DISABLED\n");
- break;
- default:
- break;
- }
- return 0;
-}
+++ /dev/null
-/*
- * (C) Copyright 2001
- * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
- *
- * 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
- */
-
-/*
- * u-boot.lds - linker script for U-Boot on mpc7448hpc2 Board.
- */
-
-OUTPUT_ARCH(powerpc)
-SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
-/* Do we need any of these for elf?
- __DYNAMIC = 0; */
-SECTIONS
-{
- /* Read-only sections, merged into text segment: */
- . = + SIZEOF_HEADERS;
- .interp : { *(.interp) }
- .hash : { *(.hash) }
- .dynsym : { *(.dynsym) }
- .dynstr : { *(.dynstr) }
- .rel.text : { *(.rel.text) }
- .rela.text : { *(.rela.text) }
- .rel.data : { *(.rel.data) }
- .rela.data : { *(.rela.data) }
- .rel.rodata : { *(.rel.rodata) }
- .rela.rodata : { *(.rela.rodata) }
- .rel.got : { *(.rel.got) }
- .rela.got : { *(.rela.got) }
- .rel.ctors : { *(.rel.ctors) }
- .rela.ctors : { *(.rela.ctors) }
- .rel.dtors : { *(.rel.dtors) }
- .rela.dtors : { *(.rela.dtors) }
- .rel.bss : { *(.rel.bss) }
- .rela.bss : { *(.rela.bss) }
- .rel.plt : { *(.rel.plt) }
- .rela.plt : { *(.rela.plt) }
- .init : { *(.init) }
- .plt : { *(.plt) }
- .text :
- {
- cpu/74xx_7xx/start.o (.text)
-
-/* store the environment in a seperate sector in the boot flash */
-/* . = env_offset; */
-/* common/environment.o(.text) */
-
- *(.text)
- *(.fixup)
- *(.got1)
- }
- _etext = .;
- PROVIDE (etext = .);
- .rodata :
- {
- *(.rodata)
- *(.rodata1)
- *(.rodata.str1.4)
- }
- .fini : { *(.fini) } =0
- .ctors : { *(.ctors) }
- .dtors : { *(.dtors) }
-
- /* Read-write section, merged into data segment: */
- . = (. + 0x00FF) & 0xFFFFFF00;
- _erotext = .;
- PROVIDE (erotext = .);
- .reloc :
- {
- *(.got)
- _GOT2_TABLE_ = .;
- *(.got2)
- _FIXUP_TABLE_ = .;
- *(.fixup)
- }
- __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
- __fixup_entries = (. - _FIXUP_TABLE_)>>2;
-
- .data :
- {
- *(.data)
- *(.data1)
- *(.sdata)
- *(.sdata2)
- *(.dynamic)
- CONSTRUCTORS
- }
- _edata = .;
- PROVIDE (edata = .);
-
- . = .;
- __u_boot_cmd_start = .;
- .u_boot_cmd : { *(.u_boot_cmd) }
- __u_boot_cmd_end = .;
-
- . = .;
- __start___ex_table = .;
- __ex_table : { *(__ex_table) }
- __stop___ex_table = .;
-
- . = ALIGN(256);
- __init_begin = .;
- .text.init : { *(.text.init) }
- .data.init : { *(.data.init) }
- . = ALIGN(256);
- __init_end = .;
-
- __bss_start = .;
- .bss (NOLOAD) :
- {
- *(.sbss) *(.scommon)
- *(.dynbss)
- *(.bss)
- *(COMMON)
- }
- _end = . ;
- PROVIDE (end = .);
-}
projects / u-boot / commitdiff