[U-Boot] [PATCH 8/8] arm/davinci: spl - add compressed u-boot image support

Mikhail Kshevetskiy mikhail.kshevetskiy at gmail.com
Tue Jun 12 23:15:52 CEST 2012


we have a board with 128 Kb spi flash, so normal u-boot.ais does not fit on it.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy at gmail.com>
---
 Makefile                                       |   14 ++++++++++++++
 arch/arm/cpu/arm926ejs/davinci/spl.c           |    6 ++++++
 arch/arm/cpu/arm926ejs/davinci/spl_mmc.c       |    9 +++++++--
 arch/arm/cpu/arm926ejs/davinci/spl_nand.c      |    9 +++++++--
 arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c |    7 ++++++-
 arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c    |    4 ++++
 lib/Makefile                                   |    2 ++
 spl/Makefile                                   |    1 +
 8 files changed, 47 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 0197239..1cd6f03 100644
--- a/Makefile
+++ b/Makefile
@@ -452,6 +452,20 @@ $(obj)u-boot.ais:       $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
 			$(obj)u-boot.ais
 		rm $(obj)spl/u-boot-spl{,-pad}.ais
 
+$(obj)u-boot-gzip.ais:       $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
+		$(obj)tools/mkimage -s -n /dev/null -T aisimage \
+			-e $(CONFIG_SPL_TEXT_BASE) \
+			-d $(obj)spl/u-boot-spl.bin \
+			$(obj)spl/u-boot-spl.ais
+		$(OBJCOPY) ${OBJCFLAGS} -I binary \
+			--pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
+			$(obj)spl/u-boot-spl.ais $(obj)spl/u-boot-spl-pad.ais
+		cp $(obj)u-boot.bin $(obj)spl/u-boot.bin
+		gzip $(obj)spl/u-boot.bin
+		cat $(obj)spl/u-boot-spl-pad.ais $(obj)spl/u-boot.bin.gz > \
+			$(obj)u-boot-gzip.ais
+		rm $(obj)spl/u-boot-spl{,-pad}.ais $(obj)spl/u-boot.bin.gz
+
 $(obj)u-boot.sb:       $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
 		elftosb -zdf imx28 -c $(TOPDIR)/board/$(BOARDDIR)/u-boot.bd \
 			-o $(obj)u-boot.sb
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c
index a8c318c..f6ddea3 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl.c
@@ -111,6 +111,7 @@ u32 davinci_boot_device(void){
 
 void board_init_r(gd_t *id, ulong dummy)
 {
+	int size;
 	u32 boot_device;
 	void (*uboot)(void) __noreturn;
 
@@ -159,6 +160,11 @@ void board_init_r(gd_t *id, ulong dummy)
 		break;
 	}
 
+#ifdef CONFIG_SPL_GUNZIP_SUPPORT
+	size = CONFIG_SPL_GUNZIP_MAX_SIZE;
+	gunzip((void*)CONFIG_SYS_TEXT_BASE, 512 * 1024, (void*)CONFIG_SPL_GUNZIP_LOAD_ADDR, &size);
+#endif
+
 	puts("Jump to U-Boot image...\n");
 	uboot = (void *) CONFIG_SYS_TEXT_BASE;
 	(*uboot)();
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_mmc.c b/arch/arm/cpu/arm926ejs/davinci/spl_mmc.c
index 520ecd1..ce8b57b 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl_mmc.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_mmc.c
@@ -26,8 +26,13 @@ void spl_mmc_load_image(void)
 	}
 
 	ret = mmc->block_dev.block_read(0, CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
-	                                CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS,
-	                                (void *) CONFIG_SYS_TEXT_BASE);
+					CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS,
+#ifndef CONFIG_SPL_GUNZIP_SUPPORT
+					(void *) CONFIG_SYS_TEXT_BASE
+#else
+					(void *) CONFIG_SPL_GUNZIP_LOAD_ADDR
+#endif
+				       );
 	if (ret < 0) {
 		printf("spl: mmc blk read err - %d\n", ret);
 		hang();
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_nand.c b/arch/arm/cpu/arm926ejs/davinci/spl_nand.c
index bad1e8f..da5358c 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl_nand.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_nand.c
@@ -5,7 +5,12 @@ void spl_nand_load_image(void)
 {
 	nand_init();
 	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-			CONFIG_SYS_NAND_U_BOOT_SIZE,
-			(void *) CONFIG_SYS_TEXT_BASE);
+			    CONFIG_SYS_NAND_U_BOOT_SIZE,
+#ifndef CONFIG_SPL_GUNZIP_SUPPORT
+			    (void *) CONFIG_SYS_TEXT_BASE
+#else
+			    (void *) CONFIG_SPL_GUNZIP_LOAD_ADDR
+#endif
+			   );
 	debug("Loaded %d bytes from NAND flash\n", CONFIG_SYS_NAND_U_BOOT_SIZE);
 }
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c b/arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c
index 2d5b045..710429f 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c
@@ -15,7 +15,12 @@ void spl_spi_flash_load_image(void)
 
 	ret = spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS,
 		             CONFIG_SYS_SPI_U_BOOT_SIZE,
-		             (void *) CONFIG_SYS_TEXT_BASE);
+#ifndef CONFIG_SPL_GUNZIP_SUPPORT
+			     (void *) CONFIG_SYS_TEXT_BASE
+#else
+			     (void *) CONFIG_SPL_GUNZIP_LOAD_ADDR
+#endif
+		            );
 	if (ret < 0) {
 		printf("spl: spi flash read err - %d\n", ret);
 		hang();
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c b/arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c
index be6786b..0844ff4 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c
@@ -23,7 +23,11 @@ void spl_ymodem_load_image(void)
 	info.mode = xyzModem_ymodem;
 	res = xyzModem_stream_open (&info, &err);
 	if (!res) {
+#ifndef CONFIG_SPL_GUNZIP_SUPPORT
 		store_addr = CONFIG_SYS_TEXT_BASE;
+#else
+		store_addr = CONFIG_SPL_GUNZIP_LOAD_ADDR;
+#endif
 		while ((res =
 			xyzModem_stream_read ((char*)store_addr, 1024, &err)) > 0) {
 			store_addr += res;
diff --git a/lib/Makefile b/lib/Makefile
index 1e8478f..3acffd9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -59,6 +59,8 @@ endif
 
 ifdef CONFIG_SPL_BUILD
 COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16.o
+COBJS-$(CONFIG_SPL_GUNZIP_SUPPORT) += crc32.o
+COBJS-$(CONFIG_SPL_GUNZIP_SUPPORT) += gunzip.o
 endif
 COBJS-y += ctype.o
 COBJS-y += div64.o
diff --git a/spl/Makefile b/spl/Makefile
index ea7d475..d11d8b2 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -52,6 +52,7 @@ LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
 LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
 LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
 LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
+LIBS-$(CONFIG_SPL_GUNZIP_SUPPORT) += lib/zlib/libz.o
 LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o
 LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o
 LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o
-- 
1.7.10



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