Adds mmc boot support.
Signed-off-by: Chander Kashyap chander.kashyap@linaro.org --- Changes for v2: - Added Dirk Behme's patch - SMDKV310: Fix host compilation of mkv310_image Changes for v3: - None Changes for v4: - None Changes for v5: - Use spl framwork for mmc spl support - Removed typedef for function pointer (API to copy u-boot from mmc to ram)
board/samsung/origen/Makefile | 20 +++++- board/samsung/origen/mmc_boot.c | 58 +++++++++++++ board/samsung/origen/tools/mkv310_image.c | 126 +++++++++++++++++++++++++++++ include/configs/origen.h | 8 ++ spl/Makefile | 10 +++ 5 files changed, 221 insertions(+), 1 deletions(-) create mode 100644 board/samsung/origen/mmc_boot.c create mode 100644 board/samsung/origen/tools/mkv310_image.c
diff --git a/board/samsung/origen/Makefile b/board/samsung/origen/Makefile index 65eff91..f5c6507 100644 --- a/board/samsung/origen/Makefile +++ b/board/samsung/origen/Makefile @@ -26,16 +26,34 @@ LIB = $(obj)lib$(BOARD).o
SOBJS := mem_setup.o SOBJS += lowlevel_init.o + +ifndef CONFIG_SPL_BUILD COBJS += origen.o +endif + +ifdef CONFIG_SPL_BUILD +COBJS += mmc_boot.o +endif
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))
-all: $(obj).depend $(LIB) +ALL +=$(obj).depend $(LIB) + +ifdef CONFIG_SPL_BUILD +ALL += tools/mk$(BOARD)spl.exe +endif + +all: $(ALL)
$(LIB): $(OBJS) $(AR) $(ARFLAGS) $@ $(OBJS)
+ifdef CONFIG_SPL_BUILD +tools/mk$(BOARD)spl.exe: tools/mkv310_image.c + $(HOSTCC) tools/mkv310_image.c -o tools/mk$(BOARD)spl.exe +endif + #########################################################################
# defines $(obj).depend target diff --git a/board/samsung/origen/mmc_boot.c b/board/samsung/origen/mmc_boot.c new file mode 100644 index 0000000..072f161 --- /dev/null +++ b/board/samsung/origen/mmc_boot.c @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2011 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) {} diff --git a/board/samsung/origen/tools/mkv310_image.c b/board/samsung/origen/tools/mkv310_image.c new file mode 100644 index 0000000..158aab5 --- /dev/null +++ b/board/samsung/origen/tools/mkv310_image.c @@ -0,0 +1,126 @@ +/* + * Copyright (C) 2011 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> + +#define BUFSIZE (16*1024) +#define IMG_SIZE (16*1024) +#define SPL_HEADER_SIZE 16 +#define FILE_PERM (S_IRUSR | S_IWUSR | S_IRGRP \ + | S_IWGRP | S_IROTH | S_IWOTH) +#define SPL_HEADER "S5PC210 HEADER " +/* +* 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) +{ + int i, len; + unsigned char buffer[BUFSIZE] = {0}; + int ifd, ofd; + unsigned int checksum = 0, count; + + if (argc != 3) { + printf(" %d Wrong number of arguments\n", argc); + 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)); + if (ifd) + close(ifd); + exit(EXIT_FAILURE); + } + + len = lseek(ifd, 0, SEEK_END); + lseek(ifd, 0, SEEK_SET); + + memcpy(&buffer[0], SPL_HEADER, SPL_HEADER_SIZE); + + count = (len < (IMG_SIZE - SPL_HEADER_SIZE)) + ? len : (IMG_SIZE - SPL_HEADER_SIZE); + + if (read(ifd, buffer + SPL_HEADER_SIZE, count) != count) { + fprintf(stderr, "%s: Can't read %s: %s\n", + argv[0], argv[1], strerror(errno)); + + if (ifd) + close(ifd); + if (ofd) + close(ofd); + + exit(EXIT_FAILURE); + } + + for (i = 0; i < IMG_SIZE - SPL_HEADER_SIZE; i++) + checksum += buffer[i+16]; + + *(ulong *)buffer ^= 0x1f; + *(ulong *)(buffer+4) ^= checksum; + + for (i = 1; i < SPL_HEADER_SIZE; i++) + buffer[i] ^= buffer[i-1]; + + if (write(ofd, buffer, BUFSIZE) != BUFSIZE) { + fprintf(stderr, "%s: Can't write %s: %s\n", + argv[0], argv[2], strerror(errno)); + + if (ifd) + close(ifd); + if (ofd) + close(ofd); + + exit(EXIT_FAILURE); + } + + if (ifd) + close(ifd); + if (ofd) + close(ofd); + + return EXIT_SUCCESS; +} diff --git a/include/configs/origen.h b/include/configs/origen.h index e8252cc..889d5fc 100644 --- a/include/configs/origen.h +++ b/include/configs/origen.h @@ -94,6 +94,9 @@
#define CONFIG_BOOTDELAY 3 #define CONFIG_ZERO_BOOTDELAY_CHECK +/* MMC SPL */ +#define CONFIG_SPL +#define COPY_BL2_FNPTR_ADDR 0x02020030
#define CONFIG_BOOTCOMMAND "fatload mmc 0 40007000 uImage; bootm 40007000"
@@ -157,4 +160,9 @@ #define CONFIG_DOS_PARTITION 1
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_LOAD_ADDR - GENERATED_GBL_DATA_SIZE) + +/* U-boot copy size from boot Media to DRAM.*/ +#define COPY_BL2_SIZE 0x80000 +#define BL2_START_OFFSET ((CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)/512) +#define BL2_SIZE_BLOC_COUNT (COPY_BL2_SIZE/512) #endif /* __CONFIG_H */ diff --git a/spl/Makefile b/spl/Makefile index 87f13f6..95ecce1 100644 --- a/spl/Makefile +++ b/spl/Makefile @@ -93,8 +93,18 @@ endif
ALL-y += $(obj)u-boot-spl.bin
+ifdef CONFIG_SAMSUNG +ALL-y += $(obj)$(BOARD)-spl.bin +endif + all: $(ALL-y)
+ifdef CONFIG_SAMSUNG +$(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin + $(TOPDIR)/board/$(BOARDDIR)/tools/mk$(BOARD)spl.exe \ + $(obj)u-boot-spl.bin $(obj)$(BOARD)-spl.bin +endif + $(obj)u-boot-spl.bin: $(obj)u-boot-spl $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@