diff options
Diffstat (limited to 'u-boot/board/mcc200/auto_update.c')
| -rw-r--r-- | u-boot/board/mcc200/auto_update.c | 544 |
1 files changed, 544 insertions, 0 deletions
diff --git a/u-boot/board/mcc200/auto_update.c b/u-boot/board/mcc200/auto_update.c new file mode 100644 index 0000000..49213d0 --- /dev/null +++ b/u-boot/board/mcc200/auto_update.c @@ -0,0 +1,544 @@ +/* + * (C) Copyright 2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * 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 <malloc.h> +#include <image.h> +#include <asm/byteorder.h> +#include <usb.h> +#include <part.h> + +#ifdef CONFIG_SYS_HUSH_PARSER +#include <hush.h> +#endif + + +#ifdef CONFIG_AUTO_UPDATE + +#ifndef CONFIG_USB_OHCI +#error "must define CONFIG_USB_OHCI" +#endif + +#ifndef CONFIG_USB_STORAGE +#error "must define CONFIG_USB_STORAGE" +#endif + +#ifndef CONFIG_SYS_HUSH_PARSER +#error "must define CONFIG_SYS_HUSH_PARSER" +#endif + +#if !defined(CONFIG_CMD_FAT) +#error "must define CONFIG_CMD_FAT" +#endif + +#undef AU_DEBUG + +#undef debug +#ifdef AU_DEBUG +#define debug(fmt,args...) printf (fmt ,##args) +#else +#define debug(fmt,args...) +#endif /* AU_DEBUG */ + +/* 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; + long end; +}; + +/* layout of the FLASH. ST = start address, ND = end address. */ +#define AU_FL_FIRMWARE_ST 0xfC000000 +#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 3 + +/* pointers to file names */ +char *aufile[AU_MAXFILES] = { + AU_FIRMWARE, + AU_KERNEL, + AU_ROOTFS +}; + +/* sizes of flash areas for each file */ +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, }, + { AU_FL_ROOTFS_ST, AU_FL_ROOTFS_ND, }, +}; + +ulong totsize; + +/* where to load files into memory */ +#define LOAD_ADDR ((unsigned char *)0x00200000) + +/* the root file system is the largest image */ +#define MAX_LOADSZ ausize[IDX_ROOTFS] + +/*i2c address of the keypad status*/ +#define I2C_PSOC_KEYPAD_ADDR 0x53 + +/* keypad mask */ +#define KEYPAD_ROW 2 +#define KEYPAD_COL 2 +#define KEYPAD_MASK_LO ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))&0xFF) +#define KEYPAD_MASK_HI ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))>>8) + +/* 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); +extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int); +extern int flash_sect_erase(ulong, ulong); +extern int flash_sect_protect (int, ulong, ulong); +extern int flash_write (char *, ulong, ulong); +extern int u_boot_hush_start(void); +#ifdef CONFIG_PROGRESSBAR +extern void show_progress(int, int); +extern void lcd_puts (char *); +extern void lcd_enable(void); +#endif + +int au_check_cksum_valid(int idx, long nbytes) +{ + image_header_t *hdr; + + hdr = (image_header_t *)LOAD_ADDR; +#if defined(CONFIG_FIT) + if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { + puts ("Non legacy image format not supported\n"); + return -1; + } +#endif + + if (nbytes != image_get_image_size (hdr)) { + printf ("Image %s bad total SIZE\n", aufile[idx]); + return -1; + } + /* check the data CRC */ + if (!image_check_dcrc (hdr)) { + printf ("Image %s bad data checksum\n", aufile[idx]); + return -1; + } + return 0; +} + +int au_check_header_valid(int idx, long nbytes) +{ + image_header_t *hdr; + unsigned long checksum, fsize; + + hdr = (image_header_t *)LOAD_ADDR; +#if defined(CONFIG_FIT) + if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { + puts ("Non legacy image format not supported\n"); + return -1; + } +#endif + + /* check the easy ones first */ +#undef CHECK_VALID_DEBUG +#ifdef CHECK_VALID_DEBUG + printf("magic %#x %#x ", image_get_magic (hdr), IH_MAGIC); + printf("arch %#x %#x ", image_get_arch (hdr), IH_ARCH_ARM); + printf("size %#x %#lx ", image_get_data_size (hdr), nbytes); + printf("type %#x %#x ", image_get_type (hdr), IH_TYPE_KERNEL); +#endif + if (nbytes < image_get_header_size ()) { + printf ("Image %s bad header SIZE\n", aufile[idx]); + ausize[idx] = 0; + return -1; + } + if (!image_check_magic (hdr) || !image_check_arch (hdr, IH_ARCH_PPC)) { + printf ("Image %s bad MAGIC or ARCH\n", aufile[idx]); + ausize[idx] = 0; + return -1; + } + /* check the hdr CRC */ + if (!image_check_hcrc (hdr)) { + printf ("Image %s bad header checksum\n", aufile[idx]); + ausize[idx] = 0; + return -1; + } + /* check the type - could do this all in one gigantic if() */ + if ((idx == IDX_FIRMWARE) && !image_check_type (hdr, IH_TYPE_FIRMWARE)) { + printf ("Image %s wrong type\n", aufile[idx]); + ausize[idx] = 0; + return -1; + } + if ((idx == IDX_KERNEL) && !image_check_type (hdr, IH_TYPE_KERNEL)) { + printf ("Image %s wrong type\n", aufile[idx]); + ausize[idx] = 0; + return -1; + } + if ((idx == IDX_ROOTFS) && + (!image_check_type (hdr, IH_TYPE_RAMDISK) && + !image_check_type (hdr, IH_TYPE_FILESYSTEM))) { + printf ("Image %s wrong type\n", aufile[idx]); + ausize[idx] = 0; + return -1; + } + /* recycle checksum */ + checksum = image_get_data_size (hdr); + + fsize = checksum + image_get_header_size (); + /* for kernel and ramdisk the image header must also fit into flash */ + if (idx == IDX_KERNEL || image_check_type (hdr, IH_TYPE_RAMDISK)) + checksum += image_get_header_size (); + + /* check the size does not exceed space in flash. HUSH scripts */ + if ((ausize[idx] != 0) && (ausize[idx] < checksum)) { + printf ("Image %s is bigger than FLASH\n", aufile[idx]); + ausize[idx] = 0; + return -1; + } + /* Update with the real filesize */ + ausize[idx] = fsize; + + return checksum; /* return size to be written to flash */ +} + +int au_do_update(int idx, long sz) +{ + image_header_t *hdr; + char *addr; + long start, end; + int off, rc; + uint nbytes; + + hdr = (image_header_t *)LOAD_ADDR; +#if defined(CONFIG_FIT) + if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { + puts ("Non legacy image format not supported\n"); + return -1; + } +#endif + + /* execute a script */ + if (image_check_type (hdr, IH_TYPE_SCRIPT)) { + addr = (char *)((char *)hdr + image_get_header_size ()); + /* stick a NULL at the end of the script, otherwise */ + /* parse_string_outer() runs off the end. */ + addr[image_get_data_size (hdr)] = 0; + addr += 8; + parse_string_outer(addr, FLAG_PARSE_SEMICOLON); + return 0; + } + + start = aufl_layout[idx].start; + end = aufl_layout[idx].end; + + /* unprotect the address range */ + /* this assumes that ONLY the firmware is protected! */ + if (idx == IDX_FIRMWARE) { +#undef AU_UPDATE_TEST +#ifdef AU_UPDATE_TEST + /* erase it where Linux goes */ + start = aufl_layout[1].start; + end = aufl_layout[1].end; +#endif + flash_sect_protect(0, start, end); + } + + /* + * erase the address range. + */ + debug ("flash_sect_erase(%lx, %lx);\n", start, end); + flash_sect_erase(start, end); + wait_ms(100); +#ifdef CONFIG_PROGRESSBAR + show_progress(end - start, totsize); +#endif + + /* strip the header - except for the kernel and ramdisk */ + if (image_check_type (hdr, IH_TYPE_KERNEL) || + image_check_type (hdr, IH_TYPE_RAMDISK)) { + addr = (char *)hdr; + off = image_get_header_size (); + nbytes = image_get_image_size (hdr); + } else { + addr = (char *)((char *)hdr + image_get_header_size ()); +#ifdef AU_UPDATE_TEST + /* copy it to where Linux goes */ + if (idx == IDX_FIRMWARE) + start = aufl_layout[1].start; +#endif + off = 0; + nbytes = image_get_data_size (hdr); + } + + /* copy the data from RAM to FLASH */ + debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes); + rc = flash_write(addr, start, nbytes); + if (rc != 0) { + printf("Flashing failed due to error %d\n", rc); + return -1; + } + +#ifdef CONFIG_PROGRESSBAR + show_progress(nbytes, totsize); +#endif + + /* check the data CRC of the copy */ + if (crc32 (0, (uchar *)(start + off), image_get_data_size (hdr)) != + image_get_dcrc (hdr)) { + printf ("Image %s Bad Data Checksum after COPY\n", aufile[idx]); + return -1; + } + + /* protect the address range */ + /* this assumes that ONLY the firmware is protected! */ + if (idx == IDX_FIRMWARE) + flash_sect_protect(1, start, end); + return 0; +} + +/* + * 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 = 0, bitmap_first, cnt, old_ctrlc, got_ctrlc; + char *env; + long start, end; + +#if 0 /* disable key-press detection to speed up boot-up time */ + uchar keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0}; + + /* + * Read keypad status + */ + i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status1, 2); + wait_ms(500); + i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status2, 2); + + /* + * Check keypad + */ + if ( !(keypad_status1[1] & KEYPAD_MASK_LO) || + (keypad_status1[1] != keypad_status2[1])) { + return 0; + } + +#endif + au_usb_stor_curr_dev = -1; + /* start USB */ + if (usb_stop() < 0) { + debug ("usb_stop failed\n"); + return -1; + } + if (usb_init() < 0) { + debug ("usb_init failed\n"); + return -1; + } + /* + * check whether a storage device is attached (assume that it's + * a USB memory stick, since nothing else should be attached). + */ + au_usb_stor_curr_dev = usb_stor_scan(0); + if (au_usb_stor_curr_dev == -1) { + debug ("No device found. Not initialized?\n"); + res = -1; + goto xit; + } + /* check whether it has a partition table */ + stor_dev = get_dev("usb", 0); + if (stor_dev == NULL) { + debug ("uknown device type\n"); + res = -1; + goto xit; + } + if (fat_register_device(stor_dev, 1) != 0) { + debug ("Unable to use USB %d:%d for fatls\n", + au_usb_stor_curr_dev, 1); + res = -1; + goto xit; + } + if (file_fat_detectfs() != 0) { + debug ("file_fat_detectfs failed\n"); + } + + /* + * now check whether start and end are defined using environment + * variables. + */ + start = -1; + end = 0; + env = getenv("firmware_st"); + if (env != NULL) + start = simple_strtoul(env, NULL, 16); + env = getenv("firmware_nd"); + if (env != NULL) + end = simple_strtoul(env, NULL, 16); + if (start >= 0 && end && end > start) { + ausize[IDX_FIRMWARE] = (end + 1) - start; + aufl_layout[IDX_FIRMWARE].start = start; + aufl_layout[IDX_FIRMWARE].end = end; + } + start = -1; + end = 0; + env = getenv("kernel_st"); + if (env != NULL) + start = simple_strtoul(env, NULL, 16); + env = getenv("kernel_nd"); + if (env != NULL) + end = simple_strtoul(env, NULL, 16); + if (start >= 0 && end && end > start) { + ausize[IDX_KERNEL] = (end + 1) - start; + 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 */ + old_ctrlc = disable_ctrlc(0); + + bitmap_first = 0; + + /* validate the images first */ + for (i = 0; i < AU_MAXFILES; i++) { + ulong imsize; + /* just read the header */ + sz = file_fat_read(aufile[i], LOAD_ADDR, image_get_header_size ()); + debug ("read %s sz %ld hdr %d\n", + aufile[i], sz, image_get_header_size ()); + if (sz <= 0 || sz < image_get_header_size ()) { + debug ("%s not found\n", aufile[i]); + ausize[i] = 0; + continue; + } + /* au_check_header_valid() updates ausize[] */ + if ((imsize = au_check_header_valid(i, sz)) < 0) { + debug ("%s header not valid\n", aufile[i]); + continue; + } + /* totsize accounts for image size and flash erase size */ + totsize += (imsize + (aufl_layout[i].end - aufl_layout[i].start)); + } + +#ifdef CONFIG_PROGRESSBAR + if (totsize) { + lcd_puts(" Update in progress\n"); + lcd_enable(); + } +#endif + + /* just loop thru all the possible files */ + for (i = 0; i < AU_MAXFILES && totsize; i++) { + if (!ausize[i]) { + continue; + } + sz = file_fat_read(aufile[i], LOAD_ADDR, ausize[i]); + + debug ("read %s sz %ld hdr %d\n", + aufile[i], sz, image_get_header_size ()); + + if (sz != ausize[i]) { + printf ("%s: size %ld read %ld?\n", aufile[i], ausize[i], sz); + continue; + } + + if (sz <= 0 || sz <= image_get_header_size ()) { + debug ("%s not found\n", aufile[i]); + continue; + } + if (au_check_cksum_valid(i, sz) < 0) { + debug ("%s checksum not valid\n", aufile[i]); + continue; + } + /* this is really not a good idea, but it's what the */ + /* customer wants. */ + cnt = 0; + got_ctrlc = 0; + 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++; +#ifdef AU_TEST_ONLY + } while (res < 0 && cnt < (AU_MAXFILES + 1)); + if (cnt < (AU_MAXFILES + 1)) +#else + } while (res < 0); +#endif + } + + /* restore the old state */ + disable_ctrlc(old_ctrlc); +#ifdef CONFIG_PROGRESSBAR + if (totsize) { + if (!res) { + lcd_puts("\n Update completed\n"); + } else { + lcd_puts("\n Update error\n"); + } + lcd_enable(); + } +#endif + xit: + usb_stop(); + return res; +} +#endif /* CONFIG_AUTO_UPDATE */ |