From patchwork Mon Jan 9 06:40:15 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chander Kashyap X-Patchwork-Id: 134965 X-Patchwork-Delegate: promsoft@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id B8124B6F68 for ; Mon, 9 Jan 2012 17:41:18 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id B8D91282DA; Mon, 9 Jan 2012 07:40:59 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Pg1YBWkcUovy; Mon, 9 Jan 2012 07:40:59 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id D9F0928328; Mon, 9 Jan 2012 07:40:53 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 8D285282CF for ; Mon, 9 Jan 2012 07:40:51 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id W4ud5f6d3UBH for ; Mon, 9 Jan 2012 07:40:51 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail-iy0-f172.google.com (mail-iy0-f172.google.com [209.85.210.172]) by theia.denx.de (Postfix) with ESMTPS id AE5FD28306 for ; Mon, 9 Jan 2012 07:40:40 +0100 (CET) Received: by mail-iy0-f172.google.com with SMTP id z21so6237762iab.3 for ; Sun, 08 Jan 2012 22:40:40 -0800 (PST) Received: by 10.42.168.135 with SMTP id w7mr14613501icy.9.1326091240351; Sun, 08 Jan 2012 22:40:40 -0800 (PST) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPS id cv10sm14526033igc.0.2012.01.08.22.40.37 (version=SSLv3 cipher=OTHER); Sun, 08 Jan 2012 22:40:39 -0800 (PST) From: Chander Kashyap To: u-boot@lists.denx.de Date: Mon, 9 Jan 2012 12:10:15 +0530 Message-Id: <1326091215-2148-5-git-send-email-chander.kashyap@linaro.org> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1326091215-2148-1-git-send-email-chander.kashyap@linaro.org> References: <1326091215-2148-1-git-send-email-chander.kashyap@linaro.org> Cc: linaro-dev@lists.linaro.org, bjlee@samsung.com, patches@linaro.org, mk7.kang@samsung.com, samsung@lists.linaro.org Subject: [U-Boot] [PATCH v2 4/4] EXYNOS: SMDK5250: Add MMC SPL support X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de This patch adds support for mmc spl booting. Signed-off-by: Chander Kashyap --- Changes for v2: - None board/samsung/smdk5250/Makefile | 16 ++++ board/samsung/smdk5250/mmc_boot.c | 58 ++++++++++++ board/samsung/smdk5250/tools/mkexynos_image.c | 117 +++++++++++++++++++++++++ include/configs/smdk5250.h | 3 + 4 files changed, 194 insertions(+), 0 deletions(-) create mode 100644 board/samsung/smdk5250/mmc_boot.c create mode 100644 board/samsung/smdk5250/tools/mkexynos_image.c diff --git a/board/samsung/smdk5250/Makefile b/board/samsung/smdk5250/Makefile index a26f896..0e8c05a 100644 --- a/board/samsung/smdk5250/Makefile +++ b/board/samsung/smdk5250/Makefile @@ -26,18 +26,34 @@ LIB = $(obj)lib$(BOARD).o SOBJS := lowlevel_init.o SOBJS += mem_setup.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..669c1a3 --- /dev/null +++ b/board/samsung/smdk5250/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 +#include + +/* +* 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..e2b7805 --- /dev/null +++ b/board/samsung/smdk5250/tools/mkexynos_image.c @@ -0,0 +1,117 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include + +#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 9962c14..31f56fd 100644 --- a/include/configs/smdk5250.h +++ b/include/configs/smdk5250.h @@ -95,6 +95,9 @@ #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"