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EXYNOS: SMDK5250: Add MMC SPL support

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This patch adds support for MMC SPL booting.

Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Chander Kashyap 2012-02-05 23:01:48 +00:00 committed by Albert ARIBAUD
parent 0aee53bacc
commit 81e352032c
6 changed files with 201 additions and 0 deletions
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1
Makefile
View File

@ -735,6 +735,7 @@ clean:
$(obj)tools/gdb/{astest,gdbcont,gdbsend} \
$(obj)tools/gen_eth_addr $(obj)tools/img2srec \
$(obj)tools/mk{env,}image $(obj)tools/mpc86x_clk \
$(obj)tools/mk{smdk5250,}spl \
$(obj)tools/ncb $(obj)tools/ubsha1
@rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image} \
$(obj)board/matrix_vision/*/bootscript.img \

7
board/samsung/smdk5250/Makefile
View File

@ -29,7 +29,14 @@ SOBJS := lowlevel_init.o
COBJS := clock_init.o
COBJS += dmc_init.o
COBJS += tzpc_init.o
ifndef CONFIG_SPL_BUILD
COBJS += smdk5250.o
endif
ifdef CONFIG_SPL_BUILD
COBJS += mmc_boot.o
endif
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))

58
board/samsung/smdk5250/mmc_boot.c Normal file
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@ -0,0 +1,58 @@
/*
* Copyright (C) 2012 Samsung Electronics
*
* 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<config.h>
/*
* Copy U-boot from mmc to RAM:
* COPY_BL2_FNPTR_ADDR: Address in iRAM, which Contains
* Pointer to API (Data transfer from mmc to ram)
*/
void copy_uboot_to_ram(void)
{
u32 (*copy_bl2)(u32, u32, u32) = (void *) *(u32 *)COPY_BL2_FNPTR_ADDR;
copy_bl2(BL2_START_OFFSET, BL2_SIZE_BLOC_COUNT, CONFIG_SYS_TEXT_BASE);
}
void board_init_f(unsigned long bootflag)
{
__attribute__((noreturn)) void (*uboot)(void);
copy_uboot_to_ram();
/* Jump to U-Boot image */
uboot = (void *)CONFIG_SYS_TEXT_BASE;
(*uboot)();
/* Never returns Here */
}
/* Place Holders */
void board_init_r(gd_t *id, ulong dest_addr)
{
/* Function attribute is no-return */
/* This Function never executes */
while (1)
;
}
void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) {}

7
include/configs/smdk5250.h
View File

@ -102,6 +102,10 @@
#define CONFIG_BOOTDELAY 3
#define CONFIG_ZERO_BOOTDELAY_CHECK
/* MMC SPL */
#define CONFIG_SPL
#define COPY_BL2_FNPTR_ADDR 0x02020030
#define CONFIG_BOOTCOMMAND "mmc read 40007000 451 2000; bootm 40007000"
/* Miscellaneous configurable options */
@ -178,6 +182,9 @@
#define CONFIG_BL2_OFFSET (CONFIG_BL1_OFFSET + CONFIG_BL1_SIZE)
#define CONFIG_ENV_OFFSET (CONFIG_BL2_OFFSET + CONFIG_BL2_SIZE)
/* U-boot copy size from boot Media to DRAM.*/
#define BL2_START_OFFSET (CONFIG_BL2_OFFSET/512)
#define BL2_SIZE_BLOC_COUNT (CONFIG_BL2_SIZE/512)
#define CONFIG_DOS_PARTITION
#define CONFIG_IRAM_STACK 0x02050000

6
tools/Makefile
View File

@ -68,6 +68,7 @@ BIN_FILES-$(CONFIG_CMD_LOADS) += img2srec$(SFX)
BIN_FILES-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes$(SFX)
BIN_FILES-y += mkenvimage$(SFX)
BIN_FILES-y += mkimage$(SFX)
BIN_FILES-$(CONFIG_SMDK5250) += mksmdk5250spl$(SFX)
BIN_FILES-$(CONFIG_MX28) += mxsboot$(SFX)
BIN_FILES-$(CONFIG_NETCONSOLE) += ncb$(SFX)
BIN_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
@ -94,6 +95,7 @@ NOPED_OBJ_FILES-y += imximage.o
NOPED_OBJ_FILES-y += omapimage.o
NOPED_OBJ_FILES-y += mkenvimage.o
NOPED_OBJ_FILES-y += mkimage.o
OBJ_FILES-$(CONFIG_SMDK5250) += mkexynosspl.o
OBJ_FILES-$(CONFIG_MX28) += mxsboot.o
OBJ_FILES-$(CONFIG_NETCONSOLE) += ncb.o
NOPED_OBJ_FILES-y += os_support.o
@ -213,6 +215,10 @@ $(obj)mkimage$(SFX): $(obj)aisimage.o \
$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
$(HOSTSTRIP) $@
$(obj)mk$(BOARD)spl$(SFX): $(obj)mkexynosspl.o
$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
$(HOSTSTRIP) $@
$(obj)mpc86x_clk$(SFX): $(obj)mpc86x_clk.o
$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
$(HOSTSTRIP) $@

122
tools/mkexynosspl.c Normal file
View File

@ -0,0 +1,122 @@
/*
* Copyright (C) 2012 Samsung Electronics
*
* 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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include <compiler.h>
#define CHECKSUM_OFFSET (14*1024-4)
#define BUFSIZE (14*1024)
#define FILE_PERM (S_IRUSR | S_IWUSR | S_IRGRP \
| S_IWGRP | S_IROTH | S_IWOTH)
/*
* Requirement:
* IROM code reads first 14K bytes from boot device.
* It then calculates the checksum of 14K-4 bytes and compare with data at
* 14K-4 offset.
*
* This function takes two filenames:
* IN "u-boot-spl.bin" and
* OUT "$(BOARD)-spl.bin as filenames.
* It reads the "u-boot-spl.bin" in 16K buffer.
* It calculates checksum of 14K-4 Bytes and stores at 14K-4 offset in buffer.
* It writes the buffer to "$(BOARD)-spl.bin" file.
*/
int main(int argc, char **argv)
{
unsigned char buffer[BUFSIZE];
int i, ifd, ofd;
uint32_t checksum = 0;
off_t len;
ssize_t count;
struct stat stat;
if (argc != 3) {
fprintf(stderr, "Usage: %s <infile> <outfile>\n", argv[0]);
exit(EXIT_FAILURE);
}
ifd = open(argv[1], O_RDONLY);
if (ifd < 0) {
fprintf(stderr, "%s: Can't open %s: %s\n",
argv[0], argv[1], strerror(errno));
exit(EXIT_FAILURE);
}
ofd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
if (ifd < 0) {
fprintf(stderr, "%s: Can't open %s: %s\n",
argv[0], argv[2], strerror(errno));
close(ifd);
exit(EXIT_FAILURE);
}
if (fstat(ifd, &stat)) {
fprintf(stderr, "%s: Unable to get size of %s: %s\n",
argv[0], argv[1], strerror(errno));
close(ifd);
close(ofd);
exit(EXIT_FAILURE);
}
len = stat.st_size;
count = (len < CHECKSUM_OFFSET) ? len : CHECKSUM_OFFSET;
if (read(ifd, buffer, count) != count) {
fprintf(stderr, "%s: Can't read %s: %s\n",
argv[0], argv[1], strerror(errno));
close(ifd);
close(ofd);
exit(EXIT_FAILURE);
}
for (i = 0, checksum = 0; i < CHECKSUM_OFFSET; i++)
checksum += buffer[i];
checksum = cpu_to_le32(checksum);
memcpy(&buffer[CHECKSUM_OFFSET], &checksum, sizeof(checksum));
if (write(ofd, buffer, BUFSIZE) != BUFSIZE) {
fprintf(stderr, "%s: Can't write %s: %s\n",
argv[0], argv[2], strerror(errno));
close(ifd);
close(ofd);
exit(EXIT_FAILURE);
}
close(ifd);
close(ofd);
return EXIT_SUCCESS;
}