fs: Use map_sysmem() on read
This allows us to use filesystems on sandbox. It has no effect on other
architectures.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
diff --git a/fs/fs.c b/fs/fs.c
index 3561727..0cbec99 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -20,6 +20,7 @@
#include <ext4fs.h>
#include <fat.h>
#include <fs.h>
+#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -39,7 +40,7 @@
return -1;
}
-static inline int fs_read_unsupported(const char *filename, ulong addr,
+static inline int fs_read_unsupported(const char *filename, void *buf,
int offset, int len)
{
return -1;
@@ -62,12 +63,11 @@
#define fs_ls_fat file_fat_ls
-static int fs_read_fat(const char *filename, ulong addr, int offset, int len)
+static int fs_read_fat(const char *filename, void *buf, int offset, int len)
{
int len_read;
- len_read = file_fat_read_at(filename, offset,
- (unsigned char *)addr, len);
+ len_read = file_fat_read_at(filename, offset, buf, len);
if (len_read == -1) {
printf("** Unable to read file %s **\n", filename);
return -1;
@@ -110,7 +110,7 @@
#define fs_ls_ext ext4fs_ls
-static int fs_read_ext(const char *filename, ulong addr, int offset, int len)
+static int fs_read_ext(const char *filename, void *buf, int offset, int len)
{
int file_len;
int len_read;
@@ -130,7 +130,7 @@
if (len == 0)
len = file_len;
- len_read = ext4fs_read((char *)addr, len);
+ len_read = ext4fs_read(buf, len);
ext4fs_close();
if (len_read != len) {
@@ -159,7 +159,7 @@
int (*probe)(block_dev_desc_t *fs_dev_desc,
disk_partition_t *fs_partition);
int (*ls)(const char *dirname);
- int (*read)(const char *filename, ulong addr, int offset, int len);
+ int (*read)(const char *filename, void *buf, int offset, int len);
void (*close)(void);
};
@@ -267,9 +267,16 @@
int fs_read(const char *filename, ulong addr, int offset, int len)
{
struct fstype_info *info = fs_get_info(fs_type);
+ void *buf;
int ret;
- ret = info->read(filename, addr, offset, len);
+ /*
+ * We don't actually know how many bytes are being read, since len==0
+ * means read the whole file.
+ */
+ buf = map_sysmem(addr, len);
+ ret = info->read(filename, buf, offset, len);
+ unmap_sysmem(buf);
/* If we requested a specific number of bytes, check we got it */
if (ret >= 0 && len && ret != len) {