cmd: cramfs: use map_sysmem for sandbox support

As with most other commands, this needs to factor in the sysmem offset
in the sandbox or it will try to dereference the simulated physical
address directly.

Signed-off-by: Tyler Hall <tylerwhall@gmail.com>

cmd/cramfs.c

@@ -13,11 +13,13 @@
 #include <common.h>
 #include <command.h>
 #include <malloc.h>
+#include <mapmem.h>
 #include <linux/list.h>
 #include <linux/ctype.h>
 #include <jffs2/jffs2.h>
 #include <jffs2/load_kernel.h>
 #include <cramfs/cramfs_fs.h>
+#include <asm/io.h>
 
 /* enable/disable debugging messages */
 #define	DEBUG_CRAMFS
@@ -95,6 +97,7 @@ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	char *filename;
 	int size;
 	ulong offset = load_addr;
+	char *offset_virt;
 
 	struct part_info part;
 	struct mtd_device dev;
@@ -111,7 +114,7 @@ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	dev.id = &id;
 	part.dev = &dev;
 	/* fake the address offset */
-	part.offset = addr - OFFSET_ADJUSTMENT;
+	part.offset = (u64)(uintptr_t) map_sysmem(addr - OFFSET_ADJUSTMENT, 0);
 
 	/* pre-set Boot file name */
 	if ((filename = getenv("bootfile")) == NULL) {
@@ -127,9 +130,10 @@ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		filename = argv[2];
 	}
 
+	offset_virt = map_sysmem(offset, 0);
 	size = 0;
 	if (cramfs_check(&part))
-		size = cramfs_load ((char *) offset, &part, filename);
+		size = cramfs_load (offset_virt, &part, filename);
 
 	if (size > 0) {
 		printf("### CRAMFS load complete: %d bytes loaded to 0x%lx\n",
@@ -139,6 +143,9 @@ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		printf("### CRAMFS LOAD ERROR<%x> for %s!\n", size, filename);
 	}
 
+	unmap_sysmem(offset_virt);
+	unmap_sysmem((void *)(uintptr_t)part.offset);
+
 	return !(size > 0);
 }
 
@@ -172,7 +179,7 @@ int do_cramfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	dev.id = &id;
 	part.dev = &dev;
 	/* fake the address offset */
-	part.offset = addr - OFFSET_ADJUSTMENT;
+	part.offset = (u64)(uintptr_t) map_sysmem(addr - OFFSET_ADJUSTMENT, 0);
 
 	if (argc == 2)
 		filename = argv[1];
@@ -180,6 +187,7 @@ int do_cramfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	ret = 0;
 	if (cramfs_check(&part))
 		ret = cramfs_ls (&part, filename);
+	unmap_sysmem((void *)(uintptr_t)part.offset);
 
 	return ret ? 0 : 1;
 }