sunxi: Enable eMMC on Libre Computer Board ALL-H3-CC boards

[u-boot] / include / fat.h

diff --git a/include/fat.h b/include/fat.h
index 0f589391242f7b7d5dfe03e56125b1afc685df76..09e14236858571c2e6dc4cbe2b2e800e4a03ee03 100644 (file)
--- a/include/fat.h
+++ b/include/fat.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * R/O (V)FAT 12/16/32 filesystem implementation by Marcus Sundberg
  *
  * 2002-07-28 - rjones@nexus-tech.net - ported to ppcboot v1.1.6
  * 2003-03-10 - kharris@nexus-tech.net - ported to u-boot
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef _FAT_H_
@@ -13,7 +12,6 @@
 #include <asm/byteorder.h>
 #include <fs.h>
 
-#define CONFIG_SUPPORT_VFAT
 /* Maximum Long File Name length supported here is 128 UTF-16 code units */
 #define VFAT_MAXLEN_BYTES      256 /* Maximum LFN buffer in bytes */
 #define VFAT_MAXSEQ            9   /* Up to 9 of 13 2-byte UTF-16 entries */
@@ -177,12 +175,16 @@ typedef struct {
        __u32   root_cluster;   /* First cluster of root dir for FAT32 */
 } fsdata;
 
-/* TODO clean up places that are open-coding this: */
 static inline u32 clust_to_sect(fsdata *fsdata, u32 clust)
 {
        return fsdata->data_begin + clust * fsdata->clust_size;
 }
 
+static inline u32 sect_to_clust(fsdata *fsdata, int sect)
+{
+       return (sect - fsdata->data_begin) / fsdata->clust_size;
+}
+
 int file_fat_detectfs(void);
 int fat_exists(const char *filename);
 int fat_size(const char *filename, loff_t *size);