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-rw-r--r--board/esd/common/auto_update.c537
1 files changed, 537 insertions, 0 deletions
diff --git a/board/esd/common/auto_update.c b/board/esd/common/auto_update.c
new file mode 100644
index 000000000..d4009b7c4
--- /dev/null
+++ b/board/esd/common/auto_update.c
@@ -0,0 +1,537 @@
+/*
+ * (C) Copyright 2003-2004
+ * Gary Jennejohn, DENX Software Engineering, gj@denx.de.
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <asm/byteorder.h>
+#include <linux/mtd/nand.h>
+#include <fat.h>
+
+#include "auto_update.h"
+
+#ifdef CONFIG_AUTO_UPDATE
+
+#if !(CONFIG_COMMANDS & CFG_CMD_FAT)
+#error "must define CFG_CMD_FAT"
+#endif
+
+extern au_image_t au_image[];
+extern int N_AU_IMAGES;
+
+#define AU_DEBUG
+#undef AU_DEBUG
+
+#undef debug
+#ifdef AU_DEBUG
+#define debug(fmt,args...) printf (fmt ,##args)
+#else
+#define debug(fmt,args...)
+#endif /* AU_DEBUG */
+
+
+#define LOAD_ADDR ((unsigned char *)0x100000) /* where to load files into memory */
+#define MAX_LOADSZ 0x1e00000
+
+/* externals */
+extern int fat_register_device(block_dev_desc_t *, int);
+extern int file_fat_detectfs(void);
+extern long file_fat_read(const char *, void *, unsigned long);
+long do_fat_read (const char *filename, void *buffer, unsigned long maxsize, int dols);
+#ifdef CONFIG_VFD
+extern int trab_vfd (ulong);
+extern int transfer_pic(unsigned char, unsigned char *, int, int);
+#endif
+extern int flash_sect_erase(ulong, ulong);
+extern int flash_sect_protect (int, ulong, ulong);
+extern int flash_write (uchar *, ulong, ulong);
+/* change char* to void* to shutup the compiler */
+extern block_dev_desc_t *get_dev (char*, int);
+
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+/* references to names in cmd_nand.c */
+#define NANDRW_READ 0x01
+#define NANDRW_WRITE 0x00
+#define NANDRW_JFFS2 0x02
+#define NANDRW_JFFS2_SKIP 0x04
+extern struct nand_chip nand_dev_desc[];
+extern int nand_rw(struct nand_chip* nand, int cmd, size_t start, size_t len,
+ size_t * retlen, u_char * buf);
+extern int nand_erase(struct nand_chip* nand, size_t ofs, size_t len, int clean);
+#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
+
+extern block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE];
+
+
+int au_check_cksum_valid(int i, long nbytes)
+{
+ image_header_t *hdr;
+ unsigned long checksum;
+
+ hdr = (image_header_t *)LOAD_ADDR;
+
+ if ((au_image[i].type == AU_FIRMWARE) && (au_image[i].size != ntohl(hdr->ih_size))) {
+ printf ("Image %s has wrong size\n", au_image[i].name);
+ return -1;
+ }
+
+ if (nbytes != (sizeof(*hdr) + ntohl(hdr->ih_size))) {
+ printf ("Image %s bad total SIZE\n", au_image[i].name);
+ return -1;
+ }
+ /* check the data CRC */
+ checksum = ntohl(hdr->ih_dcrc);
+
+ if (crc32 (0, (char *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size))
+ != checksum) {
+ printf ("Image %s bad data checksum\n", au_image[i].name);
+ return -1;
+ }
+ return 0;
+}
+
+
+int au_check_header_valid(int i, long nbytes)
+{
+ image_header_t *hdr;
+ unsigned long checksum;
+
+ hdr = (image_header_t *)LOAD_ADDR;
+ /* check the easy ones first */
+#undef CHECK_VALID_DEBUG
+#ifdef CHECK_VALID_DEBUG
+ printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
+ printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_PPC);
+ printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
+ printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
+#endif
+ if (nbytes < sizeof(*hdr))
+ {
+ printf ("Image %s bad header SIZE\n", au_image[i].name);
+ return -1;
+ }
+ if (ntohl(hdr->ih_magic) != IH_MAGIC || hdr->ih_arch != IH_CPU_PPC)
+ {
+ printf ("Image %s bad MAGIC or ARCH\n", au_image[i].name);
+ return -1;
+ }
+ /* check the hdr CRC */
+ checksum = ntohl(hdr->ih_hcrc);
+ hdr->ih_hcrc = 0;
+
+ if (crc32 (0, (char *)hdr, sizeof(*hdr)) != checksum) {
+ printf ("Image %s bad header checksum\n", au_image[i].name);
+ return -1;
+ }
+ hdr->ih_hcrc = htonl(checksum);
+
+ /* check the type - could do this all in one gigantic if() */
+ if ((au_image[i].type == AU_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
+ printf ("Image %s wrong type\n", au_image[i].name);
+ return -1;
+ }
+ if ((au_image[i].type == AU_SCRIPT) && (hdr->ih_type != IH_TYPE_SCRIPT)) {
+ printf ("Image %s wrong type\n", au_image[i].name);
+ return -1;
+ }
+
+ /* recycle checksum */
+ checksum = ntohl(hdr->ih_size);
+
+#if 0 /* test-only */
+ /* for kernel and app the image header must also fit into flash */
+ if (idx != IDX_DISK)
+ checksum += sizeof(*hdr);
+ /* check the size does not exceed space in flash. HUSH scripts */
+ /* all have ausize[] set to 0 */
+ if ((ausize[idx] != 0) && (ausize[idx] < checksum)) {
+ printf ("Image %s is bigger than FLASH\n", au_image[i].name);
+ return -1;
+ }
+#endif
+
+ return 0;
+}
+
+
+int au_do_update(int i, long sz)
+{
+ image_header_t *hdr;
+ char *addr;
+ long start, end;
+ int off, rc;
+ uint nbytes;
+ int k;
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+ int total;
+#endif
+
+ hdr = (image_header_t *)LOAD_ADDR;
+
+ switch (au_image[i].type) {
+ case AU_SCRIPT:
+ printf("Executing script %s\n", au_image[i].name);
+
+ /* execute a script */
+ if (hdr->ih_type == IH_TYPE_SCRIPT) {
+ addr = (char *)((char *)hdr + sizeof(*hdr));
+ /* stick a NULL at the end of the script, otherwise */
+ /* parse_string_outer() runs off the end. */
+ addr[ntohl(hdr->ih_size)] = 0;
+ addr += 8;
+
+ /*
+ * Replace cr/lf with ;
+ */
+ k = 0;
+ while (addr[k] != 0) {
+ if ((addr[k] == 10) || (addr[k] == 13)) {
+ addr[k] = ';';
+ }
+ k++;
+ }
+
+ run_command(addr, 0);
+ return 0;
+ }
+
+ break;
+
+ case AU_FIRMWARE:
+ case AU_NOR:
+ case AU_NAND:
+ start = au_image[i].start;
+ end = au_image[i].start + au_image[i].size - 1;
+
+ /* unprotect the address range */
+ /* this assumes that ONLY the firmware is protected! */
+ if (au_image[i].type == AU_FIRMWARE) {
+ flash_sect_protect(0, start, end);
+ }
+
+ /*
+ * erase the address range.
+ */
+ if (au_image[i].type != AU_NAND) {
+ printf("Updating NOR FLASH with image %s\n", au_image[i].name);
+ debug ("flash_sect_erase(%lx, %lx);\n", start, end);
+ flash_sect_erase(start, end);
+ } else {
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+ printf("Updating NAND FLASH with image %s\n", au_image[i].name);
+ debug ("nand_erase(%lx, %lx);\n", start, end);
+ rc = nand_erase (nand_dev_desc, start, end - start + 1, 0);
+ debug ("nand_erase returned %x\n", rc);
+#endif
+ }
+
+ udelay(10000);
+
+ /* strip the header - except for the kernel and ramdisk */
+ if (au_image[i].type != AU_FIRMWARE) {
+ addr = (char *)hdr;
+ off = sizeof(*hdr);
+ nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
+ } else {
+ addr = (char *)((char *)hdr + sizeof(*hdr));
+ off = 0;
+ nbytes = ntohl(hdr->ih_size);
+ }
+
+ /*
+ * copy the data from RAM to FLASH
+ */
+ if (au_image[i].type != AU_NAND) {
+ debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes);
+ rc = flash_write(addr, start, nbytes);
+ } else {
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+ debug ("nand_rw(%p, %lx %x)\n", addr, start, nbytes);
+ rc = nand_rw(nand_dev_desc, NANDRW_WRITE | NANDRW_JFFS2,
+ start, nbytes, &total, addr);
+ debug ("nand_rw: ret=%x total=%d nbytes=%d\n", rc, total, nbytes);
+#endif
+ }
+ if (rc != 0) {
+ printf("Flashing failed due to error %d\n", rc);
+ return -1;
+ }
+
+ /*
+ * check the dcrc of the copy
+ */
+ if (au_image[i].type != AU_NAND) {
+ rc = crc32 (0, (char *)(start + off), ntohl(hdr->ih_size));
+ } else {
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+ rc = nand_rw(nand_dev_desc, NANDRW_READ | NANDRW_JFFS2 | NANDRW_JFFS2_SKIP,
+ start, nbytes, &total, addr);
+ rc = crc32 (0, (char *)(addr + off), ntohl(hdr->ih_size));
+#endif
+ }
+ if (rc != ntohl(hdr->ih_dcrc)) {
+ printf ("Image %s Bad Data Checksum After COPY\n", au_image[i].name);
+ return -1;
+ }
+
+ /* protect the address range */
+ /* this assumes that ONLY the firmware is protected! */
+ if (au_image[i].type == AU_FIRMWARE) {
+ flash_sect_protect(1, start, end);
+ }
+
+ break;
+
+ default:
+ printf("Wrong image type selected!\n");
+ }
+
+ return 0;
+}
+
+
+static void process_macros (const char *input, char *output)
+{
+ char c, prev;
+ const char *varname_start = NULL;
+ int inputcnt = strlen (input);
+ int outputcnt = CFG_CBSIZE;
+ int state = 0; /* 0 = waiting for '$' */
+ /* 1 = waiting for '(' or '{' */
+ /* 2 = waiting for ')' or '}' */
+ /* 3 = waiting for ''' */
+#ifdef DEBUG_PARSER
+ char *output_start = output;
+
+ printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen(input), input);
+#endif
+
+ prev = '\0'; /* previous character */
+
+ while (inputcnt && outputcnt) {
+ c = *input++;
+ inputcnt--;
+
+ if (state!=3) {
+ /* remove one level of escape characters */
+ if ((c == '\\') && (prev != '\\')) {
+ if (inputcnt-- == 0)
+ break;
+ prev = c;
+ c = *input++;
+ }
+ }
+
+ switch (state) {
+ case 0: /* Waiting for (unescaped) $ */
+ if ((c == '\'') && (prev != '\\')) {
+ state = 3;
+ break;
+ }
+ if ((c == '$') && (prev != '\\')) {
+ state++;
+ } else {
+ *(output++) = c;
+ outputcnt--;
+ }
+ break;
+ case 1: /* Waiting for ( */
+ if (c == '(' || c == '{') {
+ state++;
+ varname_start = input;
+ } else {
+ state = 0;
+ *(output++) = '$';
+ outputcnt--;
+
+ if (outputcnt) {
+ *(output++) = c;
+ outputcnt--;
+ }
+ }
+ break;
+ case 2: /* Waiting for ) */
+ if (c == ')' || c == '}') {
+ int i;
+ char envname[CFG_CBSIZE], *envval;
+ int envcnt = input-varname_start-1; /* Varname # of chars */
+
+ /* Get the varname */
+ for (i = 0; i < envcnt; i++) {
+ envname[i] = varname_start[i];
+ }
+ envname[i] = 0;
+
+ /* Get its value */
+ envval = getenv (envname);
+
+ /* Copy into the line if it exists */
+ if (envval != NULL)
+ while ((*envval) && outputcnt) {
+ *(output++) = *(envval++);
+ outputcnt--;
+ }
+ /* Look for another '$' */
+ state = 0;
+ }
+ break;
+ case 3: /* Waiting for ' */
+ if ((c == '\'') && (prev != '\\')) {
+ state = 0;
+ } else {
+ *(output++) = c;
+ outputcnt--;
+ }
+ break;
+ }
+ prev = c;
+ }
+
+ if (outputcnt)
+ *output = 0;
+
+#ifdef DEBUG_PARSER
+ printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",
+ strlen(output_start), output_start);
+#endif
+}
+
+
+/*
+ * this is called from board_init() after the hardware has been set up
+ * and is usable. That seems like a good time to do this.
+ * Right now the return value is ignored.
+ */
+int do_auto_update(void)
+{
+ block_dev_desc_t *stor_dev;
+ long sz;
+ int i, res, cnt, old_ctrlc, got_ctrlc;
+ char buffer[32];
+ char str[80];
+
+ /*
+ * Check whether a CompactFlash is inserted
+ */
+ if (ide_dev_desc[0].type == DEV_TYPE_UNKNOWN) {
+ return -1; /* no disk detected! */
+ }
+
+ /* check whether it has a partition table */
+ stor_dev = get_dev("ide", 0);
+ if (stor_dev == NULL) {
+ debug ("Uknown device type\n");
+ return -1;
+ }
+ if (fat_register_device(stor_dev, 1) != 0) {
+ debug ("Unable to register ide disk 0:1 for fatls\n");
+ return -1;
+ }
+
+ /*
+ * Check if magic file is present
+ */
+ if (do_fat_read(AU_MAGIC_FILE, buffer, sizeof(buffer), LS_NO) <= 0) {
+ return -1;
+ }
+
+#ifdef CONFIG_AUTO_UPDATE_SHOW
+ board_auto_update_show(1);
+#endif
+ puts("\nAutoUpdate Disk detected! Trying to update system...\n");
+
+ /* make sure that we see CTRL-C and save the old state */
+ old_ctrlc = disable_ctrlc(0);
+
+ /* just loop thru all the possible files */
+ for (i = 0; i < N_AU_IMAGES; i++) {
+ /*
+ * Try to expand the environment var in the fname
+ */
+ process_macros(au_image[i].name, str);
+ strcpy(au_image[i].name, str);
+
+ printf("Reading %s ...", au_image[i].name);
+ /* just read the header */
+ sz = do_fat_read(au_image[i].name, LOAD_ADDR, sizeof(image_header_t), LS_NO);
+ debug ("read %s sz %ld hdr %d\n",
+ au_image[i].name, sz, sizeof(image_header_t));
+ if (sz <= 0 || sz < sizeof(image_header_t)) {
+ puts(" not found\n");
+ continue;
+ }
+ if (au_check_header_valid(i, sz) < 0) {
+ puts(" header not valid\n");
+ continue;
+ }
+ sz = do_fat_read(au_image[i].name, LOAD_ADDR, MAX_LOADSZ, LS_NO);
+ debug ("read %s sz %ld hdr %d\n",
+ au_image[i].name, sz, sizeof(image_header_t));
+ if (sz <= 0 || sz <= sizeof(image_header_t)) {
+ puts(" not found\n");
+ continue;
+ }
+ if (au_check_cksum_valid(i, sz) < 0) {
+ puts(" checksum not valid\n");
+ continue;
+ }
+ puts(" done\n");
+
+ do {
+ res = au_do_update(i, sz);
+ /* let the user break out of the loop */
+ if (ctrlc() || had_ctrlc()) {
+ clear_ctrlc();
+ if (res < 0)
+ got_ctrlc = 1;
+ break;
+ }
+ cnt++;
+ } while (res < 0);
+ }
+
+ /* restore the old state */
+ disable_ctrlc(old_ctrlc);
+
+ puts("AutoUpdate finished\n\n");
+#ifdef CONFIG_AUTO_UPDATE_SHOW
+ board_auto_update_show(0);
+#endif
+
+ return 0;
+}
+
+
+int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ do_auto_update();
+
+ return 0;
+}
+U_BOOT_CMD(
+ autoupd, 1, 1, auto_update,
+ "autoupd - Automatically update images\n",
+ NULL
+);
+#endif /* CONFIG_AUTO_UPDATE */
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