From: Stephen Warren swarren@nvidia.com
This makes the FAT and ext4 filesystem implementations build if CONFIG_FS_{FAT,EXT4} are defined, rather than basing the build on whether CONFIG_CMD_{FAT,EXT*} are defined. This will allow the filesystems to be built separately from the filesystem-specific commands that use them. This paves the way for the creation of filesystem-generic commands that used the filesystems, without requiring the filesystem- specific commands.
Minor documentation changes are made for this change.
The new config options are automatically selected by the old config options to retain backwards-compatibility.
Signed-off-by: Stephen Warren swarren@nvidia.com --- v2: New patch. --- README | 4 +++- doc/README.ext4 | 13 +++++++++++++ fs/ext4/Makefile | 7 ++----- fs/ext4/ext4_common.c | 2 +- fs/ext4/ext4_common.h | 4 ++-- fs/ext4/ext4fs.c | 2 +- fs/fat/Makefile | 4 ++-- include/config_fallbacks.h | 13 +++++++++++++ include/ext4fs.h | 2 +- 9 files changed, 38 insertions(+), 13 deletions(-)
diff --git a/README b/README index 4901710..d86068d 100644 --- a/README +++ b/README @@ -799,9 +799,11 @@ The following options need to be configured: CONFIG_CMD_EEPROM * EEPROM read/write support CONFIG_CMD_ELF * bootelf, bootvx CONFIG_CMD_EXPORTENV * export the environment + CONFIG_CMD_EXT2 * ext2 command support + CONFIG_CMD_EXT4 * ext4 command support CONFIG_CMD_SAVEENV saveenv CONFIG_CMD_FDC * Floppy Disk Support - CONFIG_CMD_FAT * FAT partition support + CONFIG_CMD_FAT * FAT command support CONFIG_CMD_FDOS * Dos diskette Support CONFIG_CMD_FLASH flinfo, erase, protect CONFIG_CMD_FPGA FPGA device initialization support diff --git a/doc/README.ext4 b/doc/README.ext4 index b3ea8b7..b7d0ad3 100644 --- a/doc/README.ext4 +++ b/doc/README.ext4 @@ -1,15 +1,28 @@ This patch series adds support for ext4 ls,load and write features in uboot Journaling is supported for write feature.
+To enable support for the ext4 (and ext2) filesystem implementation, +#define CONFIG_FS_EXT4 + +If you want write support, +#define CONFIG_EXT4_WRITE + To Enable ext2 ls and load commands, modify the board specific config file with #define CONFIG_CMD_EXT2 +This automatically defines CONFIG_FS_EXT4 for you.
To Enable ext4 ls and load commands, modify the board specific config file with #define CONFIG_CMD_EXT4 +This automatically defines CONFIG_FS_EXT4 for you.
To enable ext4 write command, modify the board specific config file with #define CONFIG_CMD_EXT4 #define CONFIG_CMD_EXT4_WRITE +These automatically define CONFIG_FS_EXT4 and CONFIG_EXT4_WRITE for you. + +Also relevant are the generic filesystem commands, +#define CONFIG_CMD_FS_GENERIC +This does not automatically enable EXT4 support for you.
Steps to test:
diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile index 82cd9ae..bb801f9 100644 --- a/fs/ext4/Makefile +++ b/fs/ext4/Makefile @@ -30,11 +30,8 @@ include $(TOPDIR)/config.mk LIB = $(obj)libext4fs.o
AOBJS = -COBJS-$(CONFIG_CMD_EXT4) := ext4fs.o ext4_common.o dev.o -ifndef CONFIG_CMD_EXT4 -COBJS-$(CONFIG_CMD_EXT2) := ext4fs.o ext4_common.o dev.o -endif -COBJS-$(CONFIG_CMD_EXT4_WRITE) += ext4_journal.o crc16.o +COBJS-$(CONFIG_FS_EXT4) := ext4fs.o ext4_common.o dev.o +COBJS-$(CONFIG_EXT4_WRITE) += ext4_journal.o crc16.o
SRCS := $(AOBJS:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(AOBJS) $(COBJS-y)) diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c index 3deffd5..1083813 100644 --- a/fs/ext4/ext4_common.c +++ b/fs/ext4/ext4_common.c @@ -56,7 +56,7 @@ int ext4fs_indir3_blkno = -1; struct ext2_inode *g_parent_inode; static int symlinknest;
-#if defined(CONFIG_CMD_EXT4_WRITE) +#if defined(CONFIG_EXT4_WRITE) uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n) { uint32_t res = size / n; diff --git a/fs/ext4/ext4_common.h b/fs/ext4/ext4_common.h index f728134..87cab16 100644 --- a/fs/ext4/ext4_common.h +++ b/fs/ext4/ext4_common.h @@ -37,7 +37,7 @@ #include <ext4fs.h> #include <malloc.h> #include <asm/errno.h> -#if defined(CONFIG_CMD_EXT4_WRITE) +#if defined(CONFIG_EXT4_WRITE) #include "ext4_journal.h" #include "crc16.h" #endif @@ -71,7 +71,7 @@ int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode, int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name, struct ext2fs_node **fnode, int *ftype);
-#if defined(CONFIG_CMD_EXT4_WRITE) +#if defined(CONFIG_EXT4_WRITE) uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n); int ext4fs_checksum_update(unsigned int i); int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags); diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c index 93dcb7e..c0c1a41 100644 --- a/fs/ext4/ext4fs.c +++ b/fs/ext4/ext4fs.c @@ -196,7 +196,7 @@ int ext4fs_read(char *buf, unsigned len) return ext4fs_read_file(ext4fs_file, 0, len, buf); }
-#if defined(CONFIG_CMD_EXT4_WRITE) +#if defined(CONFIG_EXT4_WRITE) static void ext4fs_update(void) { short i; diff --git a/fs/fat/Makefile b/fs/fat/Makefile index 9635d36..3e33e38 100644 --- a/fs/fat/Makefile +++ b/fs/fat/Makefile @@ -24,11 +24,11 @@ include $(TOPDIR)/config.mk LIB = $(obj)libfat.o
AOBJS = -COBJS-$(CONFIG_CMD_FAT) := fat.o +COBJS-$(CONFIG_FS_FAT) := fat.o COBJS-$(CONFIG_FAT_WRITE):= fat_write.o
ifndef CONFIG_SPL_BUILD -COBJS-$(CONFIG_CMD_FAT) += file.o +COBJS-$(CONFIG_FS_FAT) += file.o endif
SRCS := $(AOBJS:.o=.S) $(COBJS-y:.o=.c) diff --git a/include/config_fallbacks.h b/include/config_fallbacks.h index 430890c..bfb9680 100644 --- a/include/config_fallbacks.h +++ b/include/config_fallbacks.h @@ -13,4 +13,17 @@ #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } #endif
+#if defined(CONFIG_CMD_FAT) && !defined(CONFIG_FS_FAT) +#define CONFIG_FS_FAT +#endif + +#if (defined(CONFIG_CMD_EXT4) || defined(CONFIG_CMD_EXT2)) && \ + !defined(CONFIG_FS_EXT4) +#define CONFIG_FS_EXT4 +#endif + +#if defined(CONFIG_CMD_EXT4_WRITE) && !defined(CONFIG_EXT4_WRITE) +#define CONFIG_EXT4_WRITE +#endif + #endif /* __CONFIG_FALLBACKS_H */ diff --git a/include/ext4fs.h b/include/ext4fs.h index b6eedde..35be720 100644 --- a/include/ext4fs.h +++ b/include/ext4fs.h @@ -116,7 +116,7 @@ struct ext_filesystem { extern struct ext2_data *ext4fs_root; extern struct ext2fs_node *ext4fs_file;
-#if defined(CONFIG_CMD_EXT4_WRITE) +#if defined(CONFIG_EXT4_WRITE) extern struct ext2_inode *g_parent_inode; extern int gd_index; extern int gindex;