[U-Boot] [PATCH v5 2/2] ORIGEN: Add MMC SPL support
Chander Kashyap
chander.kashyap at linaro.org
Fri Aug 19 10:37:20 CEST 2011
Adds mmc boot support.
Signed-off-by: Chander Kashyap <chander.kashyap at 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 $< $@
--
1.7.4.1
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