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-rw-r--r--board/mpc7448hpc2/Makefile52
-rw-r--r--board/mpc7448hpc2/asm_init.S918
-rw-r--r--board/mpc7448hpc2/config.mk28
-rw-r--r--board/mpc7448hpc2/mpc7448hpc2.c107
-rw-r--r--board/mpc7448hpc2/tsi108_init.c665
-rw-r--r--board/mpc7448hpc2/u-boot.lds136
6 files changed, 1906 insertions, 0 deletions
diff --git a/board/mpc7448hpc2/Makefile b/board/mpc7448hpc2/Makefile
new file mode 100644
index 0000000..e3d757d
--- /dev/null
+++ b/board/mpc7448hpc2/Makefile
@@ -0,0 +1,52 @@
+#
+# (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
+
+#########################################################################
diff --git a/board/mpc7448hpc2/asm_init.S b/board/mpc7448hpc2/asm_init.S
new file mode 100644
index 0000000..a7a40a1
--- /dev/null
+++ b/board/mpc7448hpc2/asm_init.S
@@ -0,0 +1,918 @@
+/*
+ * (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 */
diff --git a/board/mpc7448hpc2/config.mk b/board/mpc7448hpc2/config.mk
new file mode 100644
index 0000000..2e58858
--- /dev/null
+++ b/board/mpc7448hpc2/config.mk
@@ -0,0 +1,28 @@
+#
+# 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
diff --git a/board/mpc7448hpc2/mpc7448hpc2.c b/board/mpc7448hpc2/mpc7448hpc2.c
new file mode 100644
index 0000000..63c99de
--- /dev/null
+++ b/board/mpc7448hpc2/mpc7448hpc2.c
@@ -0,0 +1,107 @@
+/*
+ * (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
+
+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)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ /*
+ * 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
diff --git a/board/mpc7448hpc2/tsi108_init.c b/board/mpc7448hpc2/tsi108_init.c
new file mode 100644
index 0000000..8a7efef
--- /dev/null
+++ b/board/mpc7448hpc2/tsi108_init.c
@@ -0,0 +1,665 @@
+/*****************************************************************************
+ * (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>
+
+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)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ 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)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+#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;
+}
diff --git a/board/mpc7448hpc2/u-boot.lds b/board/mpc7448hpc2/u-boot.lds
new file mode 100644
index 0000000..8f24213
--- /dev/null
+++ b/board/mpc7448hpc2/u-boot.lds
@@ -0,0 +1,136 @@
+/*
+ * (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 :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}