[v7,4/4] EXYNOS: SMDK5250: Add MMC SPL support

Message ID	1328173887-24983-5-git-send-email-chander.kashyap@linaro.org
State	Superseded
Headers	show Return-Path: <patch+caf_=linaro-patchwork=canonical.com@linaro.org> Received-SPF: neutral (google.com: 209.85.210.178 is neither permitted nor denied by best guess record for domain of chander.kashyap@linaro.org) client-ip=209.85.210.178; From: Chander Kashyap <chander.kashyap@linaro.org> To: u-boot@lists.denx.de Cc: mk7.kang@samsung.com, bjlee@samsung.com, patches@linaro.org, samsung@lists.linaro.org, linaro-dev@lists.linaro.org, Chander Kashyap <chander.kashyap@linaro.org> Subject: [PATCH v7 4/4] EXYNOS: SMDK5250: Add MMC SPL support Date: Thu, 2 Feb 2012 14:41:27 +0530 Message-Id: <1328173887-24983-5-git-send-email-chander.kashyap@linaro.org> In-Reply-To: <1328173887-24983-1-git-send-email-chander.kashyap@linaro.org> References: <1328173887-24983-1-git-send-email-chander.kashyap@linaro.org>

diff --git a/board/samsung/smdk5250/Makefile b/board/samsung/smdk5250/Makefile index 80e8be3..9bba6e7 100644 --- a/board/samsung/smdk5250/Makefile +++ b/board/samsung/smdk5250/Makefile @@ -29,18 +29,34 @@ 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)) ALL := $(obj).depend $(LIB) +ifdef CONFIG_SPL_BUILD +ALL += $(OBJTREE)/tools/mk$(BOARD)spl +endif + all: $(ALL) $(LIB): $(OBJS) $(call cmd_link_o_target, $(OBJS)) +ifdef CONFIG_SPL_BUILD +$(OBJTREE)/tools/mk$(BOARD)spl: tools/mkexynos_image.c + $(HOSTCC) tools/mkexynos_image.c -o $(OBJTREE)/tools/mk$(BOARD)spl +endif + ######################################################################### # defines $(obj).depend target diff --git a/board/samsung/smdk5250/mmc_boot.c b/board/samsung/smdk5250/mmc_boot.c new file mode 100644 index 0000000..449a919 --- /dev/null +++ b/board/samsung/smdk5250/mmc_boot.c @@ -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) {} diff --git a/board/samsung/smdk5250/tools/mkexynos_image.c b/board/samsung/smdk5250/tools/mkexynos_image.c new file mode 100644 index 0000000..3159e7c --- /dev/null +++ b/board/samsung/smdk5250/tools/mkexynos_image.c @@ -0,0 +1,117 @@ +/* + * 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> + +#define CHECKSUM_OFFSET (14*1024-4) +#define BUFSIZE (16*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) +{ + int i, len; + unsigned char buffer[BUFSIZE] = {0}; + int ifd, ofd; + unsigned long 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); + + 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)); + + if (ifd) + close(ifd); + if (ofd) + close(ofd); + + exit(EXIT_FAILURE); + } + + for (i = 0, checksum = 0; i < CHECKSUM_OFFSET; i++) + checksum += buffer[i]; + + 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)); + + 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/smdk5250.h b/include/configs/smdk5250.h index 67e4012..f54d7ac 100644 --- a/include/configs/smdk5250.h +++ b/include/configs/smdk5250.h @@ -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

[v7,4/4] EXYNOS: SMDK5250: Add MMC SPL support

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