sandbox: Use md5sum and fatwrite to enable testing of fs commands

Enable md5sum to obtain the MD5 of the read and written files to check
their contents for validity.
Use map_sysmem() to map buffer in a sandbox environment.

Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>

Acked-by: Simon Glass <sjg@chromium.org>

common/cmd_md5sum.c

@@ -11,6 +11,7 @@
 #include <common.h>
 #include <command.h>
 #include <u-boot/md5.h>
+#include <asm/io.h>
 
 /*
  * Store the resulting sum to an address or variable
@@ -79,6 +80,7 @@ int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	int verify = 0;
 	int ac;
 	char * const *av;
+	void *buf;
 
 	if (argc < 3)
 		return CMD_RET_USAGE;
@@ -96,7 +98,9 @@ int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	addr = simple_strtoul(*av++, NULL, 16);
 	len = simple_strtoul(*av++, NULL, 16);
 
-	md5_wd((unsigned char *) addr, len, output, CHUNKSZ_MD5);
+	buf = map_sysmem(addr, len);
+	md5_wd(buf, len, output, CHUNKSZ_MD5);
+	unmap_sysmem(buf);
 
 	if (!verify) {
 		printf("md5 for %08lx ... %08lx ==> ", addr, addr + len - 1);
@@ -135,6 +139,7 @@ static int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	unsigned long addr, len;
 	unsigned int i;
 	u8 output[16];
+	void *buf;
 
 	if (argc < 3)
 		return CMD_RET_USAGE;
@@ -142,7 +147,10 @@ static int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	addr = simple_strtoul(argv[1], NULL, 16);
 	len = simple_strtoul(argv[2], NULL, 16);
 
-	md5_wd((unsigned char *) addr, len, output, CHUNKSZ_MD5);
+	buf = map_sysmem(addr, len);
+	md5_wd(buf, len, output, CHUNKSZ_MD5);
+	unmap_sysmem(buf);
+
 	printf("md5 for %08lx ... %08lx ==> ", addr, addr + len - 1);
 	for (i = 0; i < 16; i++)
 		printf("%02x", output[i]);

include/configs/sandbox.h

@@ -48,6 +48,7 @@
 #define CONFIG_ANDROID_BOOT_IMAGE
 
 #define CONFIG_FS_FAT
+#define CONFIG_FAT_WRITE
 #define CONFIG_FS_EXT4
 #define CONFIG_EXT4_WRITE
 #define CONFIG_CMD_FAT
@@ -57,6 +58,7 @@
 #define CONFIG_DOS_PARTITION
 #define CONFIG_HOST_MAX_DEVICES 4
 #define CONFIG_CMD_FS_GENERIC
+#define CONFIG_CMD_MD5SUM
 
 #define CONFIG_SYS_VSNPRINTF