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authorMichael Brandt <michael.brandt@stericsson.com>2010-07-20 15:08:22 +0200
committerMichael BRANDT <michael.brandt@stericsson.com>2010-08-30 20:03:48 +0200
commit20503b61a7f73fad8ee97219f7a1e74de3a8a2ac (patch)
treeec58c1f830639a45462fe07219304a06a16b7b54 /disk/part_dos.h
parent3a5b27b58258ff61dfae3167bc46fed0146ddffd (diff)
Read/write VFAT support from Rockbox-3.3 FAT stack
Add read/write VFAT support from Rockbox-3.3 FAT stack. It should be also applicable to the unmodified 2009.11 U-Boot release. Note that is was taken as is from Rockbox and from a older U-Boot Rockbox patch. "checkpatch" shows very many coding style errors and warnings, but it is tedious work to clean this up. To make this patch work an additional mmc_block_write() board support routine and the errno variable are needed. Furthermore following defines in the board config header file: #define CONFIG_ROCKBOX_FAT 1 #define CONFIG_U_BOOT 1 #define CONFIG_SUPPORT_VFAT 1 #define CONFIG_CMD_TREE_FAT This will be added in a follow-up patch. This patch is based on the patch from Etienne Carriere <etienne.carriere@stericsson.com> for the U671x U-Boot: This commit adds FAT write support to u-boot native read-only FAT code. Commit initially applied on u-boot-v2009.01 (SHA1: 72d15e705bc3983884105cb7755c7ba80e74a0a5) Based on FAT stack dumped from Rockbox package v3.1 (www.rockbox.org). Based on initial Rockbox FAT stack integration in u-boot by Keith Outwater (outwater@comcast.net). Current porting is aligned with Rockbox v3.3 FAT stack. Enable upon config switches: CONFIG_CMD_FAT CONFIG_ROCKBOX_FAT CONFIG_CMD_TREE_FAT (recommended) CONFIG_SUPPORT_VFAT (recommended) C code APIs (from U-boot native FAT support): int fat_register_device(block_dev_desc_t *dev_desc, int part_no); long file_fat_read(const char *path, void *buf, unsigned long maxsize); int file_fat_ls(const char *dirname); int file_fat_detectfs(void); C code APIs (added by Rockbox FAT support): long file_fat_write(const char *path, void *buf, unsigned long maxsize); int file_fat_rm(const char *path); int file_fat_rmdir(const char *path); int file_fat_mkdir(const char *path); int file_fat_cd(const char *path); int file_fat_pwd(void); int file_fat_mv(const char *oldpath, const char *newpath); unsigned int rockbox_fat_free(unsigned long size_kbyte); unsigned int rockbox_fat_size(void); Use "help fat" from u-boot console to see available commands. ST-Ericsson ID: WP264488 Change-Id: I9afc29ecb80f9152bd8534bbf11e47e54cfad796 Signed-off-by: Michael Brandt <michael.brandt@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/3009
Diffstat (limited to 'disk/part_dos.h')
-rw-r--r--disk/part_dos.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/disk/part_dos.h b/disk/part_dos.h
index ac93f20b3..0108d2319 100644
--- a/disk/part_dos.h
+++ b/disk/part_dos.h
@@ -35,6 +35,7 @@
#define DOS_PART_TBL_OFFSET 0x1be
#define DOS_PART_MAGIC_OFFSET 0x1fe
#define DOS_PBR_FSTYPE_OFFSET 0x36
+#define DOS_PBR_FSTYPE_OFFSET2 0x52
#define DOS_PBR_MEDIA_TYPE_OFFSET 0x15
#define DOS_MBR 0
#define DOS_PBR 1