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arm, davinci: add support for new spl framework

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Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Heiko Schocher 2011-11-01 20:00:29 +00:00 committed by Albert ARIBAUD
parent 18e8ff18fa
commit 435199f380
7 changed files with 158 additions and 3 deletions
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8
Makefile
View File

@ -416,9 +416,13 @@ $(obj)u-boot.sha1: $(obj)u-boot.bin
$(obj)u-boot.dis: $(obj)u-boot
$(OBJDUMP) -d $< > $@
$(obj)u-boot.ubl: $(obj)u-boot-nand.bin
$(obj)u-boot.ubl: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin
cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $(obj)u-boot-ubl.bin
$(obj)tools/mkimage -n $(UBL_CONFIG) -T ublimage \
-e $(CONFIG_SYS_TEXT_BASE) -d $< $@
-e $(CONFIG_SYS_TEXT_BASE) -d $(obj)u-boot-ubl.bin $(obj)u-boot.ubl
rm $(obj)u-boot-ubl.bin
rm $(obj)spl/u-boot-spl-pad.bin
ifeq ($(CONFIG_SANDBOX),y)
GEN_UBOOT = \

5
arch/arm/cpu/arm926ejs/davinci/Makefile
View File

@ -35,6 +35,11 @@ COBJS-$(CONFIG_SOC_DM644X) += dm644x.o
COBJS-$(CONFIG_SOC_DM646X) += dm646x.o
COBJS-$(CONFIG_DRIVER_TI_EMAC) += lxt972.o dp83848.o et1011c.o ksz8873.o
ifdef CONFIG_SPL_BUILD
COBJS-y += spl.o
COBJS-y += dm365_lowlevel.o
endif
SOBJS = reset.o
ifndef CONFIG_SKIP_LOWLEVEL_INIT

63
arch/arm/cpu/arm926ejs/davinci/spl.c Normal file
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@ -0,0 +1,63 @@
/*
* Copyright (C) 2011
* Heiko Schocher, DENX Software Engineering, hs@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 <common.h>
#include <asm/u-boot.h>
#include <asm/utils.h>
#include <nand.h>
#include <asm/arch/dm365_lowlevel.h>
#include <ns16550.h>
void puts(const char *str)
{
while (*str)
putc(*str++);
}
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);
}
inline void hang(void)
{
puts("### ERROR ### Please RESET the board ###\n");
for (;;)
;
}
void board_init_f(ulong dummy)
{
dm36x_lowlevel_init(0);
relocate_code(CONFIG_SPL_STACK, NULL, CONFIG_SPL_TEXT_BASE);
}
void board_init_r(gd_t *id, ulong dummy)
{
nand_init();
puts("Nand boot...\n");
nand_boot();
}

25
arch/arm/cpu/arm926ejs/start.S
View File

@ -126,7 +126,15 @@ _fiq:
.globl _TEXT_BASE
_TEXT_BASE:
#ifdef CONFIG_NAND_SPL /* deprecated, use instead CONFIG_SPL_BUILD */
.word CONFIG_SYS_TEXT_BASE
#else
#ifdef CONFIG_SPL_BUILD
.word CONFIG_SPL_TEXT_BASE
#else
.word CONFIG_SYS_TEXT_BASE
#endif
#endif
/*
* These are defined in the board-specific linker script.
@ -192,7 +200,15 @@ reset:
/* Set stackpointer in internal RAM to call board_init_f */
call_board_init_f:
#ifdef CONFIG_NAND_SPL /* deprecated, use instead CONFIG_SPL_BUILD */
ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
#else
#ifdef CONFIG_SPL_BUILD
ldr sp, =(CONFIG_SPL_STACK)
#else
ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
#endif
#endif
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
ldr r0,=0x00000000
bl board_init_f
@ -217,6 +233,7 @@ stack_setup:
mov sp, r4
adr r0, _start
sub r9, r6, r0 /* r9 <- relocation offset */
cmp r0, r6
beq clear_bss /* skip relocation */
mov r1, r6 /* r1 <- scratch for copy loop */
@ -271,12 +288,17 @@ fixnext:
#endif
clear_bss:
#ifndef CONFIG_SPL_BUILD
#ifdef CONFIG_SPL_BUILD
/* No relocation for SPL */
ldr r0, =__bss_start
ldr r1, =__bss_end__
#else
ldr r0, _bss_start_ofs
ldr r1, _bss_end_ofs
mov r4, r6 /* reloc addr */
add r0, r0, r4
add r1, r1, r4
#endif
mov r2, #0x00000000 /* clear */
clbss_l:str r2, [r0] /* clear loop... */
@ -284,6 +306,7 @@ clbss_l:str r2, [r0] /* clear loop... */
cmp r0, r1
bne clbss_l
#ifndef CONFIG_SPL_BUILD
bl coloured_LED_init
bl red_led_on
#endif

1
doc/README.SPL
View File

@ -64,3 +64,4 @@ CONFIG_SPL_POWER_SUPPORT (drivers/power/libpower.o)
CONFIG_SPL_NAND_SUPPORT (drivers/mtd/nand/libnand.o)
CONFIG_SPL_DMA_SUPPORT (drivers/dma/libdma.o)
CONFIG_SPL_POST_MEM_SUPPORT (post/drivers/memory.o)
CONFIG_SPL_NAND_LOAD (drivers/mtd/nand/nand_spl_load.o)

3
drivers/mtd/nand/Makefile
View File

@ -30,6 +30,9 @@ ifdef CONFIG_SPL_BUILD
ifdef CONFIG_SPL_NAND_SIMPLE
COBJS-y += nand_spl_simple.o
endif
ifdef CONFIG_SPL_NAND_LOAD
COBJS-y += nand_spl_load.o
endif
else
COBJS-y += nand.o
COBJS-y += nand_bbt.o

56
drivers/mtd/nand/nand_spl_load.c Normal file
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@ -0,0 +1,56 @@
/*
* Copyright (C) 2011
* Heiko Schocher, DENX Software Engineering, hs@denx.de.
*
* 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 <nand.h>
/*
* The main entry for NAND booting. It's necessary that SDRAM is already
* configured and available since this code loads the main U-Boot image
* from NAND into SDRAM and starts it from there.
*/
void nand_boot(void)
{
int ret;
__attribute__((noreturn)) void (*uboot)(void);
/*
* Load U-Boot image from NAND into RAM
*/
ret = nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
CONFIG_SYS_NAND_U_BOOT_SIZE,
(void *)CONFIG_SYS_NAND_U_BOOT_DST);
#ifdef CONFIG_NAND_ENV_DST
ret = nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
(void *)CONFIG_NAND_ENV_DST);
#ifdef CONFIG_ENV_OFFSET_REDUND
ret = nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE,
(void *)CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE);
#endif
#endif
/*
* Jump to U-Boot image
*/
uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
(*uboot)();
}