Add common (with Linux) MTD partition scheme and "mtdparts" command
Old, obsolete and duplicated code was cleaned up and replace by the
new partitioning method. There are two possible approaches now:
* define a single, static partition
* use mtdparts command line option and dynamic partitioning
Default is static partitioning.
diff --git a/common/cmd_flash.c b/common/cmd_flash.c
index 3972082..0fb4dbb 100644
--- a/common/cmd_flash.c
+++ b/common/cmd_flash.c
@@ -27,13 +27,22 @@
#include <common.h>
#include <command.h>
-
#ifdef CONFIG_HAS_DATAFLASH
#include <dataflash.h>
#endif
#if (CONFIG_COMMANDS & CFG_CMD_FLASH)
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+#include <jffs2/jffs2.h>
+
+/* parition handling routines */
+int mtdparts_init(void);
+int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
+int find_dev_and_part(const char *id, struct mtd_device **dev,
+ u8 *part_num, struct part_info **part);
+#endif
+
extern flash_info_t flash_info[]; /* info for FLASH chips */
/*
@@ -295,11 +304,17 @@
flash_print_info (&flash_info[bank-1]);
return 0;
}
+
int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
flash_info_t *info;
ulong bank, addr_first, addr_last;
int n, sect_first, sect_last;
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ struct mtd_device *dev;
+ struct part_info *part;
+ u8 dev_type, dev_num, pnum;
+#endif
int rcode = 0;
if (argc < 2) {
@@ -327,6 +342,32 @@
return rcode;
}
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ /* erase <part-id> - erase partition */
+ if ((argc == 2) && (id_parse(argv[1], NULL, &dev_type, &dev_num) == 0)) {
+ mtdparts_init();
+ if (find_dev_and_part(argv[1], &dev, &pnum, &part) == 0) {
+ if (dev->id->type == MTD_DEV_TYPE_NOR) {
+ bank = dev->id->num;
+ info = &flash_info[bank];
+ addr_first = part->offset + info->start[0];
+ addr_last = addr_first + part->size - 1;
+
+ printf ("Erase Flash Parition %s, "
+ "bank %d, 0x%08lx - 0x%08lx ",
+ argv[1], bank, addr_first,
+ addr_last);
+
+ rcode = flash_sect_erase(addr_first, addr_last);
+ return rcode;
+ }
+
+ printf("cannot erase, not a NOR device\n");
+ return 1;
+ }
+ }
+#endif
+
if (argc != 3) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
@@ -401,6 +442,11 @@
flash_info_t *info;
ulong bank, addr_first, addr_last;
int i, p, n, sect_first, sect_last;
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ struct mtd_device *dev;
+ struct part_info *part;
+ u8 dev_type, dev_num, pnum;
+#endif
int rcode = 0;
#ifdef CONFIG_HAS_DATAFLASH
int status;
@@ -488,6 +534,33 @@
return rcode;
}
+
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ /* protect on/off <part-id> */
+ if ((argc == 3) && (id_parse(argv[2], NULL, &dev_type, &dev_num) == 0)) {
+ mtdparts_init();
+ if (find_dev_and_part(argv[2], &dev, &pnum, &part) == 0) {
+ if (dev->id->type == MTD_DEV_TYPE_NOR) {
+ bank = dev->id->num;
+ info = &flash_info[bank];
+ addr_first = part->offset + info->start[0];
+ addr_last = addr_first + part->size - 1;
+
+ printf ("%sProtect Flash Parition %s, "
+ "bank %d, 0x%08lx - 0x%08lx\n",
+ p ? "" : "Un", argv[1],
+ bank, addr_first, addr_last);
+
+ rcode = flash_sect_protect (p, addr_first, addr_last);
+ return rcode;
+ }
+
+ printf("cannot %sprotect, not a NOR device\n",
+ p ? "" : "un");
+ return 1;
+ }
+ }
+#endif
if (argc != 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
@@ -609,6 +682,9 @@
"w/addr 'start'+'len'-1\n"
"erase N:SF[-SL]\n - erase sectors SF-SL in FLASH bank # N\n"
"erase bank N\n - erase FLASH bank # N\n"
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ "erase <part-id>\n - erase partition\n"
+#endif
"erase all\n - erase all FLASH banks\n"
);
@@ -623,6 +699,9 @@
"protect on N:SF[-SL]\n"
" - protect sectors SF-SL in FLASH bank # N\n"
"protect on bank N\n - protect FLASH bank # N\n"
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ "protect on <part-id>\n - protect partition\n"
+#endif
"protect on all\n - protect all FLASH banks\n"
"protect off start end\n"
" - make FLASH from addr 'start' to addr 'end' writable\n"
@@ -632,6 +711,9 @@
"protect off N:SF[-SL]\n"
" - make sectors SF-SL writable in FLASH bank # N\n"
"protect off bank N\n - make FLASH bank # N writable\n"
+#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
+ "protect off <part-id>\n - make partition writable\n"
+#endif
"protect off all\n - make all FLASH banks writable\n"
);