[U-Boot] [PATCH] powerpc/85xx: Add support for booting from NAND on MPC8572DS
Kumar Gala
galak at kernel.crashing.org
Fri Nov 19 16:21:23 CET 2010
Mimic support that exists on MPC8536DS on the MPC8572DS to allow booting
from NAND.
Signed-off-by: Jin Qing <b24347 at freescale.com>
Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
* Depends on the CONFIG_SYS_EXTRA_ENV_RELOC patch
board/freescale/mpc8572ds/config.mk | 6 +
board/freescale/mpc8572ds/tlb.c | 14 +++-
boards.cfg | 1 +
include/configs/MPC8572DS.h | 115 ++++++++++++++++++---
nand_spl/board/freescale/mpc8572ds/Makefile | 133 ++++++++++++++++++++++++
nand_spl/board/freescale/mpc8572ds/nand_boot.c | 82 +++++++++++++++
6 files changed, 335 insertions(+), 16 deletions(-)
create mode 100644 nand_spl/board/freescale/mpc8572ds/Makefile
create mode 100644 nand_spl/board/freescale/mpc8572ds/nand_boot.c
diff --git a/board/freescale/mpc8572ds/config.mk b/board/freescale/mpc8572ds/config.mk
index 5413921..6cea41c 100644
--- a/board/freescale/mpc8572ds/config.mk
+++ b/board/freescale/mpc8572ds/config.mk
@@ -23,4 +23,10 @@
#
# mpc8572ds board
#
+ifndef NAND_SPL
+ifeq ($(CONFIG_NAND), y)
+LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
+endif
+endif
+
RESET_VECTOR_ADDRESS = 0xeffffffc
diff --git a/board/freescale/mpc8572ds/tlb.c b/board/freescale/mpc8572ds/tlb.c
index 6a2a0b5..575bdb5 100644
--- a/board/freescale/mpc8572ds/tlb.c
+++ b/board/freescale/mpc8572ds/tlb.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2008 Freescale Semiconductor, Inc.
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd at denx.de.
@@ -85,6 +85,18 @@ struct fsl_e_tlb_entry tlb_table[] = {
SET_TLB_ENTRY(1, PIXIS_BASE, PIXIS_BASE_PHYS,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 8, BOOKE_PAGESZ_4K, 1),
+
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
+ /* *I*G - L2SRAM */
+ SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR,
+ CONFIG_SYS_INIT_L2_ADDR_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 9, BOOKE_PAGESZ_256K, 1),
+ SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR + 0x40000,
+ CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 10, BOOKE_PAGESZ_256K, 1),
+#endif
};
int num_tlb_entries = ARRAY_SIZE(tlb_table);
diff --git a/boards.cfg b/boards.cfg
index 08e531e..bafc47d 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -581,6 +581,7 @@ MPC8569MDS_ATM powerpc mpc85xx mpc8569mds freescale - MPC8569MDS:ATM
MPC8569MDS_NAND powerpc mpc85xx mpc8569mds freescale - MPC8569MDS:NAND
MPC8572DS powerpc mpc85xx mpc8572ds freescale - MPC8572DS
MPC8572DS_36BIT powerpc mpc85xx mpc8572ds freescale - MPC8572DS:36BIT
+MPC8572DS_NAND powerpc mpc85xx mpc8572ds freescale - MPC8572DS:NAND
P1011RDB powerpc mpc85xx p1_p2_rdb freescale - P1_P2_RDB:P1011
P1011RDB_NAND powerpc mpc85xx p1_p2_rdb freescale - P1_P2_RDB:P1011,NAND
P1011RDB_SDCARD powerpc mpc85xx p1_p2_rdb freescale - P1_P2_RDB:P1011,SDCARD
diff --git a/include/configs/MPC8572DS.h b/include/configs/MPC8572DS.h
index 1ee95ae..cd3db6e 100644
--- a/include/configs/MPC8572DS.h
+++ b/include/configs/MPC8572DS.h
@@ -33,6 +33,25 @@
#define CONFIG_PHYS_64BIT
#endif
+#ifdef CONFIG_NAND
+#define CONFIG_NAND_U_BOOT
+#define CONFIG_RAMBOOT_NAND
+#ifdef CONFIG_NAND_SPL
+#define CONFIG_SYS_TEXT_BASE_SPL 0xfff00000
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE_SPL /* start of monitor */
+#else
+#define CONFIG_SYS_TEXT_BASE 0xf8f82000
+#endif /* CONFIG_NAND_SPL */
+#endif
+
+#ifndef CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_TEXT_BASE 0xeff80000
+#endif
+
+#ifndef CONFIG_SYS_MONITOR_BASE
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE /* start of monitor */
+#endif
+
/* High Level Configuration Options */
#define CONFIG_BOOKE 1 /* BOOKE */
#define CONFIG_E500 1 /* BOOKE e500 family */
@@ -41,10 +60,6 @@
#define CONFIG_MPC8572DS 1
#define CONFIG_MP 1 /* support multiple processors */
-#ifndef CONFIG_SYS_TEXT_BASE
-#define CONFIG_SYS_TEXT_BASE 0xeff80000
-#endif
-
#define CONFIG_FSL_ELBC 1 /* Has Enhanced localbus controller */
#define CONFIG_PCI 1 /* Enable PCI/PCIE */
#define CONFIG_PCIE1 1 /* PCIE controler 1 (slot 1) */
@@ -81,10 +96,21 @@
#define CONFIG_PANIC_HANG /* do not reset board on panic */
/*
+ * Config the L2 Cache as L2 SRAM
+ */
+#define CONFIG_SYS_INIT_L2_ADDR 0xf8f80000
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS 0xff8f80000ull
+#else
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS CONFIG_SYS_INIT_L2_ADDR
+#endif
+#define CONFIG_SYS_L2_SIZE (512 << 10)
+#define CONFIG_SYS_INIT_L2_END (CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_L2_SIZE)
+
+/*
* Base addresses -- Note these are effective addresses where the
* actual resources get mapped (not physical addresses)
*/
-#define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 /* CCSRBAR Default */
#define CONFIG_SYS_CCSRBAR 0xffe00000 /* relocated CCSRBAR */
#ifdef CONFIG_PHYS_64BIT
#define CONFIG_SYS_CCSRBAR_PHYS 0xfffe00000ull /* physical addr of CCSRBAR */
@@ -93,6 +119,12 @@
#endif
#define CONFIG_SYS_IMMR CONFIG_SYS_CCSRBAR /* PQII uses CONFIG_SYS_IMMR */
+#if defined(CONFIG_RAMBOOT_NAND) && !defined(CONFIG_NAND_SPL)
+#define CONFIG_SYS_CCSRBAR_DEFAULT CONFIG_SYS_CCSRBAR
+#else
+#define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 /* CCSRBAR Default */
+#endif
+
/* DDR Setup */
#define CONFIG_VERY_BIG_RAM
#define CONFIG_FSL_DDR2
@@ -177,8 +209,11 @@
#define CONFIG_SYS_FLASH_BASE_PHYS CONFIG_SYS_FLASH_BASE
#endif
-#define CONFIG_SYS_BR0_PRELIM (BR_PHYS_ADDR((CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000)) | BR_PS_16 | BR_V)
-#define CONFIG_SYS_OR0_PRELIM 0xf8000ff7
+
+#define CONFIG_FLASH_BR_PRELIM \
+ (BR_PHYS_ADDR((CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000)) \
+ | BR_PS_16 | BR_V)
+#define CONFIG_FLASH_OR_PRELIM 0xf8000ff7
#define CONFIG_SYS_BR1_PRELIM (BR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS) | BR_PS_16 | BR_V)
#define CONFIG_SYS_OR1_PRELIM 0xf8000ff7
@@ -193,7 +228,12 @@
#define CONFIG_SYS_FLASH_ERASE_TOUT 60000 /* Flash Erase Timeout (ms) */
#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (ms) */
-#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE /* start of monitor */
+#if defined(CONFIG_SYS_SPL) || defined(CONFIG_RAMBOOT_NAND)
+#define CONFIG_SYS_RAMBOOT
+#define CONFIG_SYS_EXTRA_ENV_RELOC
+#else
+#undef CONFIG_SYS_RAMBOOT
+#endif
#define CONFIG_FLASH_CFI_DRIVER
#define CONFIG_SYS_FLASH_CFI
@@ -246,6 +286,8 @@
#define PIXIS_VWATCH 0x24 /* Watchdog Register */
#define PIXIS_LED 0x25 /* LED Register */
+#define PIXIS_SPD_SYSCLK_MASK 0x7 /* SYSCLK option */
+
/* old pixis referenced names */
#define PIXIS_VCLKH 0x19 /* VELA VCLKH register */
#define PIXIS_VCLKL 0x1A /* VELA VCLKL register */
@@ -277,12 +319,22 @@
#define CONFIG_SYS_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Mon */
#define CONFIG_SYS_MALLOC_LEN (1024 * 1024) /* Reserved for malloc */
+#ifndef CONFIG_NAND_SPL
#define CONFIG_SYS_NAND_BASE 0xffa00000
#ifdef CONFIG_PHYS_64BIT
#define CONFIG_SYS_NAND_BASE_PHYS 0xfffa00000ull
#else
#define CONFIG_SYS_NAND_BASE_PHYS CONFIG_SYS_NAND_BASE
#endif
+#else
+#define CONFIG_SYS_NAND_BASE 0xfff00000
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_NAND_BASE_PHYS 0xffff00000ull
+#else
+#define CONFIG_SYS_NAND_BASE_PHYS CONFIG_SYS_NAND_BASE
+#endif
+#endif
+
#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE,\
CONFIG_SYS_NAND_BASE + 0x40000, \
CONFIG_SYS_NAND_BASE + 0x80000,\
@@ -293,6 +345,17 @@
#define CONFIG_NAND_FSL_ELBC 1
#define CONFIG_SYS_NAND_BLOCK_SIZE (128 * 1024)
+/* NAND boot: 4K NAND loader config */
+#define CONFIG_SYS_NAND_SPL_SIZE 0x1000
+#define CONFIG_SYS_NAND_U_BOOT_SIZE ((512 << 10) - 0x2000)
+#define CONFIG_SYS_NAND_U_BOOT_DST (CONFIG_SYS_INIT_L2_ADDR)
+#define CONFIG_SYS_NAND_U_BOOT_START \
+ (CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_NAND_SPL_SIZE)
+#define CONFIG_SYS_NAND_U_BOOT_OFFS (0)
+#define CONFIG_SYS_NAND_U_BOOT_RELOC (CONFIG_SYS_INIT_L2_END - 0x2000)
+#define CONFIG_SYS_NAND_U_BOOT_RELOC_SP ((CONFIG_SYS_INIT_L2_END - 1) & ~0xF)
+
+
/* NAND flash config */
#define CONFIG_NAND_BR_PRELIM (BR_PHYS_ADDR(CONFIG_SYS_NAND_BASE_PHYS) \
| (2<<BR_DECC_SHIFT) /* Use HW ECC */ \
@@ -308,9 +371,17 @@
| OR_FCM_TRLX \
| OR_FCM_EHTR)
+#ifdef CONFIG_RAMBOOT_NAND
+#define CONFIG_SYS_BR0_PRELIM CONFIG_NAND_BR_PRELIM /* NAND Base Address */
+#define CONFIG_SYS_OR0_PRELIM CONFIG_NAND_OR_PRELIM /* NAND Options */
+#define CONFIG_SYS_BR2_PRELIM CONFIG_FLASH_BR_PRELIM /* NOR Base Address */
+#define CONFIG_SYS_OR2_PRELIM CONFIG_FLASH_OR_PRELIM /* NOR Options */
+#else
+#define CONFIG_SYS_BR0_PRELIM CONFIG_FLASH_BR_PRELIM /* NOR Base Address */
+#define CONFIG_SYS_OR0_PRELIM CONFIG_FLASH_OR_PRELIM /* NOR Options */
#define CONFIG_SYS_BR2_PRELIM CONFIG_NAND_BR_PRELIM /* NAND Base Address */
#define CONFIG_SYS_OR2_PRELIM CONFIG_NAND_OR_PRELIM /* NAND Options */
-
+#endif
#define CONFIG_SYS_BR4_PRELIM (BR_PHYS_ADDR((CONFIG_SYS_NAND_BASE_PHYS + 0x40000))\
| (2<<BR_DECC_SHIFT) /* Use HW ECC */ \
| BR_PS_8 /* Port Size = 8 bit */ \
@@ -341,6 +412,9 @@
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE 1
#define CONFIG_SYS_NS16550_CLK get_bus_freq(0)
+#ifdef CONFIG_NAND_SPL
+#define CONFIG_NS16550_MIN_FUNCTIONS
+#endif
#define CONFIG_SYS_BAUDRATE_TABLE \
{300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}
@@ -546,14 +620,25 @@
/*
* Environment
*/
-#define CONFIG_ENV_IS_IN_FLASH 1
-#if CONFIG_SYS_MONITOR_BASE > 0xfff80000
-#define CONFIG_ENV_ADDR 0xfff80000
+
+#if defined(CONFIG_SYS_RAMBOOT)
+#if defined(CONFIG_RAMBOOT_NAND)
+#define CONFIG_ENV_IS_IN_NAND 1
+#define CONFIG_ENV_SIZE CONFIG_SYS_NAND_BLOCK_SIZE
+#define CONFIG_ENV_OFFSET ((512 * 1024)\
+ + CONFIG_SYS_NAND_BLOCK_SIZE)
+#endif
+
#else
-#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
+ #define CONFIG_ENV_IS_IN_FLASH 1
+ #if CONFIG_SYS_MONITOR_BASE > 0xfff80000
+ #define CONFIG_ENV_ADDR 0xfff80000
+ #else
+ #define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
+ #endif
+ #define CONFIG_ENV_SIZE 0x2000
+ #define CONFIG_ENV_SECT_SIZE 0x20000 /* 128K (one sector) */
#endif
-#define CONFIG_ENV_SIZE 0x2000
-#define CONFIG_ENV_SECT_SIZE 0x20000 /* 128K (one sector) */
#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
#define CONFIG_SYS_LOADS_BAUD_CHANGE 1 /* allow baudrate change */
diff --git a/nand_spl/board/freescale/mpc8572ds/Makefile b/nand_spl/board/freescale/mpc8572ds/Makefile
new file mode 100644
index 0000000..e2181e9
--- /dev/null
+++ b/nand_spl/board/freescale/mpc8572ds/Makefile
@@ -0,0 +1,133 @@
+#
+# (C) Copyright 2007
+# Stefan Roese, DENX Software Engineering, sr at denx.de.
+#
+# Copyright 2009-2010 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
+#
+
+NAND_SPL := y
+CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
+PAD_TO := 0xfff01000
+
+include $(TOPDIR)/config.mk
+
+LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
+LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) $(PLATFORM_LDFLAGS)
+AFLAGS += -DCONFIG_NAND_SPL
+CFLAGS += -DCONFIG_NAND_SPL
+
+SOBJS = start.o resetvec.o
+COBJS = cache.o cpu_init_early.o cpu_init_nand.o fsl_law.o law.o \
+ nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
+
+SRCS := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
+__OBJS := $(SOBJS) $(COBJS)
+LNDIR := $(OBJTREE)/nand_spl/board/$(BOARDDIR)
+
+nandobj := $(OBJTREE)/nand_spl/
+
+ALL = $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
+
+all: $(obj).depend $(ALL)
+
+$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
+ $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@
+
+$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
+ $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
+
+$(nandobj)u-boot-spl: $(OBJS)
+ cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) $(PLATFORM_LIBS) \
+ -Map $(nandobj)u-boot-spl.map \
+ -o $(nandobj)u-boot-spl
+
+# create symbolic links for common files
+
+$(obj)cache.c:
+ @rm -f $(obj)cache.c
+ ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $(obj)cache.c
+
+$(obj)cpu_init_early.c:
+ @rm -f $(obj)cpu_init_early.c
+ ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $(obj)cpu_init_early.c
+
+$(obj)cpu_init_nand.c:
+ @rm -f $(obj)cpu_init_nand.c
+ ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_nand.c $(obj)cpu_init_nand.c
+
+$(obj)fsl_law.c:
+ @rm -f $(obj)fsl_law.c
+ ln -sf $(SRCTREE)/drivers/misc/fsl_law.c $(obj)fsl_law.c
+
+$(obj)law.c:
+ @rm -f $(obj)law.c
+ ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $(obj)law.c
+
+$(obj)nand_boot_fsl_elbc.c:
+ @rm -f $(obj)nand_boot_fsl_elbc.c
+ ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c \
+ $(obj)nand_boot_fsl_elbc.c
+
+$(obj)ns16550.c:
+ @rm -f $(obj)ns16550.c
+ ln -sf $(SRCTREE)/drivers/serial/ns16550.c $(obj)ns16550.c
+
+$(obj)resetvec.S:
+ @rm -f $(obj)resetvec.S
+ ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $(obj)resetvec.S
+
+$(obj)fixed_ivor.S:
+ @rm -f $(obj)fixed_ivor.S
+ ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $(obj)fixed_ivor.S
+
+$(obj)start.S: $(obj)fixed_ivor.S
+ @rm -f $(obj)start.S
+ ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $(obj)start.S
+
+$(obj)tlb.c:
+ @rm -f $(obj)tlb.c
+ ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $(obj)tlb.c
+
+$(obj)tlb_table.c:
+ @rm -f $(obj)tlb_table.c
+ ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $(obj)tlb_table.c
+
+ifneq ($(OBJTREE), $(SRCTREE))
+$(obj)nand_boot.c:
+ @rm -f $(obj)nand_boot.c
+ ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/nand_boot.c $(obj)nand_boot.c
+endif
+
+#########################################################################
+
+$(obj)%.o: $(obj)%.S
+ $(CC) $(AFLAGS) -c -o $@ $<
+
+$(obj)%.o: $(obj)%.c
+ $(CC) $(CFLAGS) -c -o $@ $<
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/nand_spl/board/freescale/mpc8572ds/nand_boot.c b/nand_spl/board/freescale/mpc8572ds/nand_boot.c
new file mode 100644
index 0000000..7ca4d4d
--- /dev/null
+++ b/nand_spl/board/freescale/mpc8572ds/nand_boot.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <ns16550.h>
+#include <asm/io.h>
+#include <nand.h>
+
+u32 sysclk_tbl[] = {
+ 33333000, 39999600, 49999500, 66666000,
+ 83332500, 99999000, 133332000, 166665000
+};
+
+void board_init_f(ulong bootflag)
+{
+ int px_spd;
+ u32 plat_ratio, bus_clk, sys_clk;
+ ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM)
+ /* for FPGA */
+ set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
+ set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
+#else
+#error CONFIG_SYS_BR3_PRELIM, CONFIG_SYS_OR3_PRELIM must be defined
+#endif
+
+ /* initialize selected port with appropriate baud rate */
+ px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
+ sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK];
+ plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+ bus_clk = sys_clk * plat_ratio / 2;
+
+ NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+ bus_clk / 16 / CONFIG_BAUDRATE);
+
+ puts("\nNAND boot... ");
+
+ /* copy code to RAM and jump to it - this should not return */
+ /* NOTE - code has to be copied out of NAND buffer before
+ * other blocks can be read.
+ */
+ relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, 0,
+ CONFIG_SYS_NAND_U_BOOT_RELOC);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+ nand_boot();
+}
+
+void putc(char c)
+{
+ if (c == '\n')
+ NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
+
+ NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
+}
+
+void puts(const char *str)
+{
+ while (*str)
+ putc(*str++);
+}
--
1.7.2.3
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