MCC200: Extensions to Software Update Mechanism
Update / extend Software Update Mechanism for MCC200 board:
- Add support for rootfs image added. The environment variables
"rootfs_st" and "rootfs_nd" can be used to override the default
values of the image start and end.
- Remove excessive key check code.
- Code cleanup.
diff --git a/board/mcc200/auto_update.c b/board/mcc200/auto_update.c
index f1bb721..12091fd 100644
--- a/board/mcc200/auto_update.c
+++ b/board/mcc200/auto_update.c
@@ -47,25 +47,6 @@
#error "must define CFG_CMD_FAT"
#endif
-/*
- * Check whether a USB memory stick is plugged in.
- * If one is found:
- * 1) if prepare.img ist found load it into memory. If it is
- * valid then run it.
- * 2) if preinst.img is found load it into memory. If it is
- * valid then run it. Update the EEPROM.
- * 3) if firmw_01.img is found load it into memory. If it is valid,
- * burn it into FLASH and update the EEPROM.
- * 4) if kernl_01.img is found load it into memory. If it is valid,
- * burn it into FLASH and update the EEPROM.
- * 5) if app.img is found load it into memory. If it is valid,
- * burn it into FLASH and update the EEPROM.
- * 6) if disk.img is found load it into memory. If it is valid,
- * burn it into FLASH and update the EEPROM.
- * 7) if postinst.img is found load it into memory. If it is
- * valid then run it. Update the EEPROM.
- */
-
#undef AU_DEBUG
#undef debug
@@ -78,6 +59,7 @@
/* possible names of files on the USB stick. */
#define AU_FIRMWARE "u-boot.img"
#define AU_KERNEL "kernel.img"
+#define AU_ROOTFS "rootfs.img"
struct flash_layout {
long start;
@@ -89,33 +71,45 @@
#define AU_FL_FIRMWARE_ND 0xfC03FFFF
#define AU_FL_KERNEL_ST 0xfC0C0000
#define AU_FL_KERNEL_ND 0xfC1BFFFF
+#define AU_FL_ROOTFS_ST 0xFC1C0000
+#define AU_FL_ROOTFS_ND 0xFCFBFFFF
static int au_usb_stor_curr_dev; /* current device */
/* index of each file in the following arrays */
#define IDX_FIRMWARE 0
#define IDX_KERNEL 1
+#define IDX_ROOTFS 2
/* max. number of files which could interest us */
-#define AU_MAXFILES 2
+#define AU_MAXFILES 3
/* pointers to file names */
-char *aufile[AU_MAXFILES];
+char *aufile[AU_MAXFILES] = {
+ AU_FIRMWARE,
+ AU_KERNEL,
+ AU_ROOTFS
+};
/* sizes of flash areas for each file */
-long ausize[AU_MAXFILES];
+long ausize[AU_MAXFILES] = {
+ (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST,
+ (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST,
+ (AU_FL_ROOTFS_ND + 1) - AU_FL_ROOTFS_ST
+};
/* array of flash areas start and end addresses */
-struct flash_layout aufl_layout[AU_MAXFILES] = { \
- {AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND,}, \
- {AU_FL_KERNEL_ST, AU_FL_KERNEL_ND,}, \
+struct flash_layout aufl_layout[AU_MAXFILES] = {
+ {AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND,},
+ {AU_FL_KERNEL_ST, AU_FL_KERNEL_ND,},
+ {AU_FL_ROOTFS_ST, AU_FL_ROOTFS_ND,}
};
/* where to load files into memory */
#define LOAD_ADDR ((unsigned char *)0x00200000)
/* the app is the largest image */
-#define MAX_LOADSZ ausize[IDX_KERNEL]
+#define MAX_LOADSZ ausize[IDX_ROOTFS]
/*i2c address of the keypad status*/
#define I2C_PSOC_KEYPAD_ADDR 0x53
@@ -163,7 +157,6 @@
{
image_header_t *hdr;
unsigned long checksum;
- unsigned char buf[4];
hdr = (image_header_t *)LOAD_ADDR;
/* check the easy ones first */
@@ -200,6 +193,10 @@
printf ("Image %s wrong type\n", aufile[idx]);
return -1;
}
+ if ((idx == IDX_ROOTFS) && (hdr->ih_type != IH_TYPE_RAMDISK)) {
+ printf ("Image %s wrong type\n", aufile[idx]);
+ return -1;
+ }
/* recycle checksum */
checksum = ntohl(hdr->ih_size);
/* for kernel and app the image header must also fit into flash */
@@ -257,7 +254,7 @@
flash_sect_erase(start, end);
wait_ms(100);
/* strip the header - except for the kernel and ramdisk */
- if (hdr->ih_type == IH_TYPE_KERNEL) {
+ if (hdr->ih_type == IH_TYPE_KERNEL || hdr->ih_type == IH_TYPE_RAMDISK) {
addr = (char *)hdr;
off = sizeof(*hdr);
nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
@@ -305,7 +302,7 @@
int i, res, bitmap_first, cnt, old_ctrlc, got_ctrlc;
char *env;
long start, end;
- char keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0};
+ uchar keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0};
/*
* Read keypad status
@@ -317,10 +314,6 @@
/*
* Check keypad
*/
- if ( !(keypad_status1[0] & KEYPAD_MASK_HI) ||
- (keypad_status1[0] != keypad_status2[0])) {
- return 0;
- }
if ( !(keypad_status1[1] & KEYPAD_MASK_LO) ||
(keypad_status1[1] != keypad_status2[1])) {
return 0;
@@ -359,14 +352,6 @@
debug ("file_fat_detectfs failed\n");
}
- /* initialize the array of file names */
- memset(aufile, 0, sizeof(aufile));
- aufile[IDX_FIRMWARE] = AU_FIRMWARE;
- aufile[IDX_KERNEL] = AU_KERNEL;
- /* initialize the array of flash sizes */
- memset(ausize, 0, sizeof(ausize));
- ausize[IDX_FIRMWARE] = (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST;
- ausize[IDX_KERNEL] = (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST;
/*
* now check whether start and end are defined using environment
* variables.
@@ -381,8 +366,8 @@
end = simple_strtoul(env, NULL, 16);
if (start >= 0 && end && end > start) {
ausize[IDX_FIRMWARE] = (end + 1) - start;
- aufl_layout[0].start = start;
- aufl_layout[0].end = end;
+ aufl_layout[IDX_FIRMWARE].start = start;
+ aufl_layout[IDX_FIRMWARE].end = end;
}
start = -1;
end = 0;
@@ -394,9 +379,23 @@
end = simple_strtoul(env, NULL, 16);
if (start >= 0 && end && end > start) {
ausize[IDX_KERNEL] = (end + 1) - start;
- aufl_layout[1].start = start;
- aufl_layout[1].end = end;
+ aufl_layout[IDX_KERNEL].start = start;
+ aufl_layout[IDX_KERNEL].end = end;
}
+ start = -1;
+ end = 0;
+ env = getenv("rootfs_st");
+ if (env != NULL)
+ start = simple_strtoul(env, NULL, 16);
+ env = getenv("rootfs_nd");
+ if (env != NULL)
+ end = simple_strtoul(env, NULL, 16);
+ if (start >= 0 && end && end > start) {
+ ausize[IDX_ROOTFS] = (end + 1) - start;
+ aufl_layout[IDX_ROOTFS].start = start;
+ aufl_layout[IDX_ROOTFS].end = end;
+ }
+
/* make certain that HUSH is runnable */
u_boot_hush_start();
/* make sure that we see CTRL-C and save the old state */
@@ -443,8 +442,8 @@
}
cnt++;
#ifdef AU_TEST_ONLY
- } while (res < 0 && cnt < 3);
- if (cnt < 3)
+ } while (res < 0 && cnt < (AU_MAXFILES + 1));
+ if (cnt < (AU_MAXFILES + 1))
#else
} while (res < 0);
#endif