u-boot/mlo-ext2.patch

Index: u-boot-2012.10/drivers/mmc/spl_mmc.c
===================================================================
--- u-boot-2012.10.orig/drivers/mmc/spl_mmc.c
+++ u-boot-2012.10/drivers/mmc/spl_mmc.c
@@ -67,6 +67,59 @@ end:
 }
 
 #ifdef CONFIG_SPL_FAT_SUPPORT
+static void mmc_load_image_ext2(struct mmc *mmc)
+{
+	s32 err;
+	struct image_header *header;
+	char *payloadname;
+	int filelen;
+	disk_partition_t part_info = {};
+
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+						sizeof(struct image_header));
+
+	if (get_partition_info(&mmc->block_dev,
+		CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION, &part_info)) {
+		printf("spl: no partition table found\n");
+		hang();
+	}
+
+	err = ext4fs_set_blk_dev(&mmc->block_dev, &part_info);
+	if (!err) {
+		printf("spl: ext4fs register err - %d\n", err);
+		hang();
+	}
+
+	err = ext4fs_mount(0);
+	if (!err) {
+		printf("spl: ext4fs mount err - %d\n", err);
+		hang();
+	}
+
+
+	payloadname = "u-boot.bin";
+
+	filelen = err = ext4fs_open(payloadname);
+	if (err < 0) {
+		goto end;
+	}
+	err = ext4fs_read((u8 *)header, sizeof(struct image_header));
+	if (err <= 0) {
+		goto end;
+	}
+
+	spl_parse_image_header(header);
+
+	err = ext4fs_read((u8 *)spl_image.load_addr, filelen);
+
+end:
+	if (err <= 0) {
+		printf("spl: error reading image %s, err - %d\n",
+			payloadname, err);
+		hang();
+	}
+}
+
 static void mmc_load_image_fat(struct mmc *mmc)
 {
 	s32 err;
@@ -121,13 +174,15 @@ void spl_mmc_load_image(void)
 		hang();
 	}
 	boot_mode = spl_boot_mode();
+	boot_mode = MMCSD_MODE_FAT;
 	if (boot_mode == MMCSD_MODE_RAW) {
 		debug("boot mode - RAW\n");
 		mmc_load_image_raw(mmc);
 #ifdef CONFIG_SPL_FAT_SUPPORT
 	} else if (boot_mode == MMCSD_MODE_FAT) {
 		debug("boot mode - FAT\n");
-		mmc_load_image_fat(mmc);
+//		mmc_load_image_fat(mmc);
+		mmc_load_image_ext2(mmc);
 #endif
 	} else {
 		puts("spl: wrong MMC boot mode\n");
Index: u-boot-2012.10/include/configs/omap3_beagle.h
===================================================================
--- u-boot-2012.10.orig/include/configs/omap3_beagle.h
+++ u-boot-2012.10/include/configs/omap3_beagle.h
@@ -258,7 +258,7 @@
 		"root=${nandroot} " \
 		"rootfstype=${nandrootfstype}\0" \
 	"bootenv=uEnv.txt\0" \
-	"loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
+	"loadbootenv=ext2load mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
 	"importbootenv=echo Importing environment from mmc ...; " \
 		"env import -t $loadaddr $filesize\0" \
 	"ramargs=setenv bootargs console=${console} " \
@@ -270,8 +270,8 @@
 		"omapdss.def_disp=${defaultdisplay} " \
 		"root=${ramroot} " \
 		"rootfstype=${ramrootfstype}\0" \
-	"loadramdisk=fatload mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
-	"loaduimagefat=fatload mmc ${mmcdev} ${loadaddr} uImage\0" \
+	"loadramdisk=ext2load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
+	"loaduimagefat=ext2load mmc ${mmcdev} ${loadaddr} uImage\0" \
 	"loaduimage=ext2load mmc ${mmcdev}:2 ${loadaddr} /boot/uImage\0" \
 	"mmcboot=echo Booting from mmc ...; " \
 		"run mmcargs; " \
Index: u-boot-2012.10/include/configs/omap4_common.h
===================================================================
--- u-boot-2012.10.orig/include/configs/omap4_common.h
+++ u-boot-2012.10/include/configs/omap4_common.h
@@ -156,10 +156,10 @@
 		"vram=${vram} " \
 		"root=${mmcroot} " \
 		"rootfstype=${mmcrootfstype}\0" \
-	"loadbootscript=fatload mmc ${mmcdev} ${loadaddr} boot.scr\0" \
+	"loadbootscript=ext2load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
 	"bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
 		"source ${loadaddr}\0" \
-	"loaduimage=fatload mmc ${mmcdev} ${loadaddr} uImage\0" \
+	"loaduimage=ext2load mmc ${mmcdev} ${loadaddr} uImage\0" \
 	"mmcboot=echo Booting from mmc${mmcdev} ...; " \
 		"run mmcargs; " \
 		"bootm ${loadaddr}\0" \
Index: u-boot-2012.10/spl/Makefile
===================================================================
--- u-boot-2012.10.orig/spl/Makefile
+++ u-boot-2012.10/spl/Makefile
@@ -51,6 +51,7 @@ LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += dri
 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_FAT_SUPPORT) += fs/ext4/libext4fs.o
 LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
 LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o
 LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o