/* * (C) Copyright 2003 * Gary Jennejohn, DENX Software Engineering, gj@denx.de. * * 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 <malloc.h> #include <image.h> #include <asm/byteorder.h> #include <usb.h> #ifdef CONFIG_SYS_HUSH_PARSER #include <hush.h> #endif #ifdef CONFIG_AUTO_UPDATE #ifndef CONFIG_USB_OHCI_NEW #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 /* * 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 #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_PREPARE "prepare.img" #define AU_PREINST "preinst.img" #define AU_FIRMWARE "firmw_01.img" #define AU_KERNEL "kernl_01.img" #define AU_APP "app.img" #define AU_DISK "disk.img" #define AU_POSTINST "postinst.img" struct flash_layout { long start; long end; }; /* layout of the FLASH. ST = start address, ND = end address. */ #ifndef CONFIG_FLASH_8MB /* 16 MB Flash, 32 MB RAM */ #define AU_FL_FIRMWARE_ST 0x00000000 #define AU_FL_FIRMWARE_ND 0x0009FFFF #define AU_FL_VFD_ST 0x000A0000 #define AU_FL_VFD_ND 0x000BFFFF #define AU_FL_KERNEL_ST 0x000C0000 #define AU_FL_KERNEL_ND 0x001BFFFF #define AU_FL_APP_ST 0x001C0000 #define AU_FL_APP_ND 0x005BFFFF #define AU_FL_DISK_ST 0x005C0000 #define AU_FL_DISK_ND 0x00FFFFFF #else /* 8 MB Flash, 32 MB RAM */ #define AU_FL_FIRMWARE_ST 0x00000000 #define AU_FL_FIRMWARE_ND 0x0005FFFF #define AU_FL_KERNEL_ST 0x00060000 #define AU_FL_KERNEL_ND 0x0013FFFF #define AU_FL_APP_ST 0x00140000 #define AU_FL_APP_ND 0x0067FFFF #define AU_FL_DISK_ST 0x00680000 #define AU_FL_DISK_ND 0x007DFFFF #define AU_FL_VFD_ST 0x007E0000 #define AU_FL_VFD_ND 0x007FFFFF #endif /* CONFIG_FLASH_8MB */ /* a structure with the offsets to values in the EEPROM */ struct eeprom_layout { int time; int size; int dcrc; }; /* layout of the EEPROM - offset from the start. All entries are 32 bit. */ #define AU_EEPROM_TIME_PREINST 64 #define AU_EEPROM_SIZE_PREINST 68 #define AU_EEPROM_DCRC_PREINST 72 #define AU_EEPROM_TIME_FIRMWARE 76 #define AU_EEPROM_SIZE_FIRMWARE 80 #define AU_EEPROM_DCRC_FIRMWARE 84 #define AU_EEPROM_TIME_KERNEL 88 #define AU_EEPROM_SIZE_KERNEL 92 #define AU_EEPROM_DCRC_KERNEL 96 #define AU_EEPROM_TIME_APP 100 #define AU_EEPROM_SIZE_APP 104 #define AU_EEPROM_DCRC_APP 108 #define AU_EEPROM_TIME_DISK 112 #define AU_EEPROM_SIZE_DISK 116 #define AU_EEPROM_DCRC_DISK 120 #define AU_EEPROM_TIME_POSTINST 124 #define AU_EEPROM_SIZE_POSTINST 128 #define AU_EEPROM_DCRC_POSTINST 132 static int au_usb_stor_curr_dev; /* current device */ /* index of each file in the following arrays */ #define IDX_PREPARE 0 #define IDX_PREINST 1 #define IDX_FIRMWARE 2 #define IDX_KERNEL 3 #define IDX_APP 4 #define IDX_DISK 5 #define IDX_POSTINST 6 /* max. number of files which could interest us */ #define AU_MAXFILES 7 /* pointers to file names */ char *aufile[AU_MAXFILES]; /* sizes of flash areas for each file */ long ausize[AU_MAXFILES]; /* offsets into the EEEPROM */ struct eeprom_layout auee_off[AU_MAXFILES] = { \ {0}, \ {AU_EEPROM_TIME_PREINST, AU_EEPROM_SIZE_PREINST, AU_EEPROM_DCRC_PREINST,}, \ {AU_EEPROM_TIME_FIRMWARE, AU_EEPROM_SIZE_FIRMWARE, AU_EEPROM_DCRC_FIRMWARE,}, \ {AU_EEPROM_TIME_KERNEL, AU_EEPROM_SIZE_KERNEL, AU_EEPROM_DCRC_KERNEL,}, \ {AU_EEPROM_TIME_APP, AU_EEPROM_SIZE_APP, AU_EEPROM_DCRC_APP,}, \ {AU_EEPROM_TIME_DISK, AU_EEPROM_SIZE_DISK, AU_EEPROM_DCRC_DISK,}, \ {AU_EEPROM_TIME_POSTINST, AU_EEPROM_SIZE_POSTINST, AU_EEPROM_DCRC_POSTINST,} \ }; /* array of flash areas start and end addresses */ struct flash_layout aufl_layout[AU_MAXFILES - 3] = { \ {AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND,}, \ {AU_FL_KERNEL_ST, AU_FL_KERNEL_ND,}, \ {AU_FL_APP_ST, AU_FL_APP_ND,}, \ {AU_FL_DISK_ST, AU_FL_DISK_ND,}, \ }; /* convert the index into aufile[] to an index into aufl_layout[] */ #define FIDX_TO_LIDX(idx) ((idx) - 2) /* where to load files into memory */ #define LOAD_ADDR ((unsigned char *)0x0C100000) /* the app is the largest image */ #define MAX_LOADSZ ausize[IDX_APP] /* 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 i2c_write (uchar, uint, int , uchar* , int); #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 (char *, ulong, ulong); /* change char* to void* to shutup the compiler */ extern int i2c_write_multiple (uchar, uint, int, void *, int); extern int i2c_read_multiple (uchar, uint, int, void *, int); extern int u_boot_hush_start(void); 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; unsigned char buf[4]; 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]); return -1; } if (!image_check_magic (hdr) || !image_check_arch (hdr, IH_ARCH_ARM)) { printf ("Image %s bad MAGIC or ARCH\n", aufile[idx]); return -1; } /* check the hdr CRC */ if (!image_check_hcrc (hdr)) { printf ("Image %s bad header checksum\n", aufile[idx]); 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]); return -1; } if ((idx == IDX_KERNEL) && !image_check_type (hdr, IH_TYPE_KERNEL)) { printf ("Image %s wrong type\n", aufile[idx]); return -1; } if ((idx == IDX_DISK) && !image_check_type (hdr, IH_TYPE_FILESYSTEM)) { printf ("Image %s wrong type\n", aufile[idx]); return -1; } if ((idx == IDX_APP) && !image_check_type (hdr, IH_TYPE_RAMDISK) && !image_check_type (hdr, IH_TYPE_FILESYSTEM)) { printf ("Image %s wrong type\n", aufile[idx]); return -1; } if ((idx == IDX_PREPARE || idx == IDX_PREINST || idx == IDX_POSTINST) && !image_check_type (hdr, IH_TYPE_SCRIPT)) { printf ("Image %s wrong type\n", aufile[idx]); return -1; } /* special case for prepare.img */ if (idx == IDX_PREPARE) return 0; /* recycle checksum */ checksum = image_get_data_size (hdr); /* for kernel and app the image header must also fit into flash */ if ((idx != IDX_DISK) && (idx != IDX_FIRMWARE)) checksum += image_get_header_size (); /* 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", aufile[idx]); return -1; } /* check the time stamp from the EEPROM */ /* read it in */ i2c_read_multiple(0x54, auee_off[idx].time, 1, buf, sizeof(buf)); #ifdef CHECK_VALID_DEBUG printf ("buf[0] %#x buf[1] %#x buf[2] %#x buf[3] %#x " "as int %#x time %#x\n", buf[0], buf[1], buf[2], buf[3], *((unsigned int *)buf), image_get_time (hdr)); #endif /* check it */ if (*((unsigned int *)buf) >= image_get_time (hdr)) { printf ("Image %s is too old\n", aufile[idx]); return -1; } return 0; } /* power control defines */ #define CPLD_VFD_BK ((volatile char *)0x04038002) #define POWER_OFF (1 << 1) 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 /* disable the power switch */ *CPLD_VFD_BK |= POWER_OFF; /* 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[FIDX_TO_LIDX(idx)].start; end = aufl_layout[FIDX_TO_LIDX(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); /* 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; } /* check the dcrc 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; } int au_update_eeprom(int idx) { image_header_t *hdr; int off; uint32_t val; /* special case for prepare.img */ if (idx == IDX_PREPARE) { /* enable the power switch */ *CPLD_VFD_BK &= ~POWER_OFF; return 0; } 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 /* write the time field into EEPROM */ off = auee_off[idx].time; val = image_get_time (hdr); i2c_write_multiple(0x54, off, 1, &val, sizeof(val)); /* write the size field into EEPROM */ off = auee_off[idx].size; val = image_get_data_size (hdr); i2c_write_multiple(0x54, off, 1, &val, sizeof(val)); /* write the dcrc field into EEPROM */ off = auee_off[idx].dcrc; val = image_get_dcrc (hdr); i2c_write_multiple(0x54, off, 1, &val, sizeof(val)); /* enable the power switch */ *CPLD_VFD_BK &= ~POWER_OFF; 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; #undef ERASE_EEPROM #ifdef ERASE_EEPROM int arr[18]; memset(arr, 0, sizeof(arr)); i2c_write_multiple(0x54, 64, 1, arr, sizeof(arr)); #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"); } /* initialize the array of file names */ memset(aufile, 0, sizeof(aufile)); aufile[IDX_PREPARE] = AU_PREPARE; aufile[IDX_PREINST] = AU_PREINST; aufile[IDX_FIRMWARE] = AU_FIRMWARE; aufile[IDX_KERNEL] = AU_KERNEL; aufile[IDX_APP] = AU_APP; aufile[IDX_DISK] = AU_DISK; aufile[IDX_POSTINST] = AU_POSTINST; /* 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; ausize[IDX_APP] = (AU_FL_APP_ND + 1) - AU_FL_APP_ST; ausize[IDX_DISK] = (AU_FL_DISK_ND + 1) - AU_FL_DISK_ST; /* * 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[0].start = start; aufl_layout[0].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[1].start = start; aufl_layout[1].end = end; } start = -1; end = 0; env = getenv("app_st"); if (env != NULL) start = simple_strtoul(env, NULL, 16); env = getenv("app_nd"); if (env != NULL) end = simple_strtoul(env, NULL, 16); if (start >= 0 && end && end > start) { ausize[IDX_APP] = (end + 1) - start; aufl_layout[2].start = start; aufl_layout[2].end = end; } start = -1; end = 0; env = getenv("disk_st"); if (env != NULL) start = simple_strtoul(env, NULL, 16); env = getenv("disk_nd"); if (env != NULL) end = simple_strtoul(env, NULL, 16); if (start >= 0 && end && end > start) { ausize[IDX_DISK] = (end + 1) - start; aufl_layout[3].start = start; aufl_layout[3].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; /* just loop thru all the possible files */ for (i = 0; i < AU_MAXFILES; i++) { /* 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]); continue; } if (au_check_header_valid(i, sz) < 0) { debug ("%s header not valid\n", aufile[i]); continue; } sz = file_fat_read(aufile[i], LOAD_ADDR, MAX_LOADSZ); 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]); continue; } if (au_check_cksum_valid(i, sz) < 0) { debug ("%s checksum not valid\n", aufile[i]); continue; } #ifdef CONFIG_VFD /* now that we have a valid file we can display the */ /* bitmap. */ if (bitmap_first == 0) { env = getenv("bitmap2"); if (env == NULL) { trab_vfd(0); } else { /* not so simple - bitmap2 is supposed to */ /* contain the address of the bitmap */ env = (char *)simple_strtoul(env, NULL, 16); /* NOTE: these are taken from vfd_logo.h. If that file changes then */ /* these defines MUST also be updated! These may be wrong for bitmap2. */ #define VFD_LOGO_WIDTH 112 #define VFD_LOGO_HEIGHT 72 /* must call transfer_pic directly */ transfer_pic(3, (unsigned char *)env, VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH); } bitmap_first = 1; } #endif /* 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 < 3); if (cnt < 3) #else } while (res < 0); #endif /* * it doesn't make sense to update the EEPROM if the * update was interrupted by the user due to errors. */ if (got_ctrlc == 0) au_update_eeprom(i); else /* enable the power switch */ *CPLD_VFD_BK &= ~POWER_OFF; } /* restore the old state */ disable_ctrlc(old_ctrlc); xit: usb_stop(); return res; } #endif /* CONFIG_AUTO_UPDATE */