upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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530 lines
13 KiB
530 lines
13 KiB
/*
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* (C) Copyright 2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <image.h>
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#include <asm/byteorder.h>
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#include <usb.h>
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#include <part.h>
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#ifdef CFG_HUSH_PARSER
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#include <hush.h>
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#endif
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#ifdef CONFIG_AUTO_UPDATE
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#ifndef CONFIG_USB_OHCI
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#error "must define CONFIG_USB_OHCI"
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#endif
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#ifndef CONFIG_USB_STORAGE
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#error "must define CONFIG_USB_STORAGE"
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#endif
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#ifndef CFG_HUSH_PARSER
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#error "must define CFG_HUSH_PARSER"
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#endif
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#if !defined(CONFIG_CMD_FAT)
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#error "must define CONFIG_CMD_FAT"
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#endif
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#undef AU_DEBUG
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#undef debug
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#ifdef AU_DEBUG
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#define debug(fmt,args...) printf (fmt ,##args)
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#else
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#define debug(fmt,args...)
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#endif /* AU_DEBUG */
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/* possible names of files on the USB stick. */
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#define AU_FIRMWARE "u-boot.img"
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#define AU_KERNEL "kernel.img"
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#define AU_ROOTFS "rootfs.img"
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struct flash_layout {
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long start;
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long end;
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};
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/* layout of the FLASH. ST = start address, ND = end address. */
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#define AU_FL_FIRMWARE_ST 0xfC000000
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#define AU_FL_FIRMWARE_ND 0xfC03FFFF
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#define AU_FL_KERNEL_ST 0xfC0C0000
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#define AU_FL_KERNEL_ND 0xfC1BFFFF
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#define AU_FL_ROOTFS_ST 0xFC1C0000
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#define AU_FL_ROOTFS_ND 0xFCFBFFFF
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static int au_usb_stor_curr_dev; /* current device */
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/* index of each file in the following arrays */
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#define IDX_FIRMWARE 0
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#define IDX_KERNEL 1
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#define IDX_ROOTFS 2
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/* max. number of files which could interest us */
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#define AU_MAXFILES 3
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/* pointers to file names */
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char *aufile[AU_MAXFILES] = {
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AU_FIRMWARE,
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AU_KERNEL,
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AU_ROOTFS
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};
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/* sizes of flash areas for each file */
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long ausize[AU_MAXFILES] = {
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(AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST,
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(AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST,
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(AU_FL_ROOTFS_ND + 1) - AU_FL_ROOTFS_ST,
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};
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/* array of flash areas start and end addresses */
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struct flash_layout aufl_layout[AU_MAXFILES] = {
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{ AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND, },
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{ AU_FL_KERNEL_ST, AU_FL_KERNEL_ND, },
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{ AU_FL_ROOTFS_ST, AU_FL_ROOTFS_ND, },
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};
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ulong totsize;
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/* where to load files into memory */
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#define LOAD_ADDR ((unsigned char *)0x00200000)
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/* the root file system is the largest image */
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#define MAX_LOADSZ ausize[IDX_ROOTFS]
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/*i2c address of the keypad status*/
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#define I2C_PSOC_KEYPAD_ADDR 0x53
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/* keypad mask */
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#define KEYPAD_ROW 2
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#define KEYPAD_COL 2
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#define KEYPAD_MASK_LO ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))&0xFF)
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#define KEYPAD_MASK_HI ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*3-3)))>>8)
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/* externals */
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extern int fat_register_device(block_dev_desc_t *, int);
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extern int file_fat_detectfs(void);
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extern long file_fat_read(const char *, void *, unsigned long);
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extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int);
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extern int flash_sect_erase(ulong, ulong);
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extern int flash_sect_protect (int, ulong, ulong);
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extern int flash_write (char *, ulong, ulong);
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extern int u_boot_hush_start(void);
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#ifdef CONFIG_PROGRESSBAR
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extern void show_progress(int, int);
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extern void lcd_puts (char *);
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extern void lcd_enable(void);
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#endif
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int au_check_cksum_valid(int idx, long nbytes)
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{
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image_header_t *hdr;
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unsigned long checksum;
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hdr = (image_header_t *)LOAD_ADDR;
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if (nbytes != (sizeof(*hdr) + ntohl(hdr->ih_size))) {
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printf ("Image %s bad total SIZE\n", aufile[idx]);
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return -1;
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}
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/* check the data CRC */
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checksum = ntohl(hdr->ih_dcrc);
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if (crc32 (0, (uchar *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size)) != checksum) {
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printf ("Image %s bad data checksum\n", aufile[idx]);
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return -1;
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}
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return 0;
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}
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int au_check_header_valid(int idx, long nbytes)
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{
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image_header_t *hdr;
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unsigned long checksum, fsize;
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hdr = (image_header_t *)LOAD_ADDR;
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/* check the easy ones first */
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#undef CHECK_VALID_DEBUG
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#ifdef CHECK_VALID_DEBUG
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printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
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printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM);
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printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
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printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
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#endif
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if (nbytes < sizeof(*hdr)) {
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printf ("Image %s bad header SIZE\n", aufile[idx]);
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ausize[idx] = 0;
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return -1;
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}
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if (ntohl(hdr->ih_magic) != IH_MAGIC || hdr->ih_arch != IH_CPU_PPC) {
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printf ("Image %s bad MAGIC or ARCH\n", aufile[idx]);
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ausize[idx] = 0;
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return -1;
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}
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/* check the hdr CRC */
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checksum = ntohl(hdr->ih_hcrc);
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hdr->ih_hcrc = 0;
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if (crc32 (0, (uchar *)hdr, sizeof(*hdr)) != checksum) {
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printf ("Image %s bad header checksum\n", aufile[idx]);
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ausize[idx] = 0;
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return -1;
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}
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hdr->ih_hcrc = htonl(checksum);
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/* check the type - could do this all in one gigantic if() */
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if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
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printf ("Image %s wrong type\n", aufile[idx]);
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ausize[idx] = 0;
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return -1;
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}
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if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) {
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printf ("Image %s wrong type\n", aufile[idx]);
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ausize[idx] = 0;
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return -1;
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}
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if ((idx == IDX_ROOTFS) &&
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( (hdr->ih_type != IH_TYPE_RAMDISK) && (hdr->ih_type != IH_TYPE_FILESYSTEM) )
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) {
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printf ("Image %s wrong type\n", aufile[idx]);
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ausize[idx] = 0;
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return -1;
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}
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/* recycle checksum */
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checksum = ntohl(hdr->ih_size);
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fsize = checksum + sizeof(*hdr);
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/* for kernel and ramdisk the image header must also fit into flash */
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if (idx == IDX_KERNEL || hdr->ih_type == IH_TYPE_RAMDISK)
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checksum += sizeof(*hdr);
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/* check the size does not exceed space in flash. HUSH scripts */
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if ((ausize[idx] != 0) && (ausize[idx] < checksum)) {
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printf ("Image %s is bigger than FLASH\n", aufile[idx]);
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ausize[idx] = 0;
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return -1;
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}
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/* Update with the real filesize */
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ausize[idx] = fsize;
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return checksum; /* return size to be written to flash */
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}
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int au_do_update(int idx, long sz)
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{
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image_header_t *hdr;
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char *addr;
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long start, end;
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int off, rc;
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uint nbytes;
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hdr = (image_header_t *)LOAD_ADDR;
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/* execute a script */
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if (hdr->ih_type == IH_TYPE_SCRIPT) {
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addr = (char *)((char *)hdr + sizeof(*hdr));
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/* stick a NULL at the end of the script, otherwise */
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/* parse_string_outer() runs off the end. */
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addr[ntohl(hdr->ih_size)] = 0;
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addr += 8;
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parse_string_outer(addr, FLAG_PARSE_SEMICOLON);
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return 0;
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}
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start = aufl_layout[idx].start;
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end = aufl_layout[idx].end;
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/* unprotect the address range */
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/* this assumes that ONLY the firmware is protected! */
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if (idx == IDX_FIRMWARE) {
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#undef AU_UPDATE_TEST
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#ifdef AU_UPDATE_TEST
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/* erase it where Linux goes */
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start = aufl_layout[1].start;
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end = aufl_layout[1].end;
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#endif
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flash_sect_protect(0, start, end);
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}
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/*
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* erase the address range.
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*/
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debug ("flash_sect_erase(%lx, %lx);\n", start, end);
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flash_sect_erase(start, end);
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wait_ms(100);
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#ifdef CONFIG_PROGRESSBAR
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show_progress(end - start, totsize);
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#endif
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/* strip the header - except for the kernel and ramdisk */
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if (hdr->ih_type == IH_TYPE_KERNEL || hdr->ih_type == IH_TYPE_RAMDISK) {
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addr = (char *)hdr;
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off = sizeof(*hdr);
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nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
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} else {
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addr = (char *)((char *)hdr + sizeof(*hdr));
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#ifdef AU_UPDATE_TEST
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/* copy it to where Linux goes */
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if (idx == IDX_FIRMWARE)
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start = aufl_layout[1].start;
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#endif
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off = 0;
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nbytes = ntohl(hdr->ih_size);
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}
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/* copy the data from RAM to FLASH */
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debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes);
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rc = flash_write(addr, start, nbytes);
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if (rc != 0) {
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printf("Flashing failed due to error %d\n", rc);
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return -1;
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}
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#ifdef CONFIG_PROGRESSBAR
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show_progress(nbytes, totsize);
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#endif
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/* check the data CRC of the copy */
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if (crc32 (0, (uchar *)(start + off), ntohl(hdr->ih_size)) != ntohl(hdr->ih_dcrc)) {
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printf ("Image %s Bad Data Checksum after COPY\n", aufile[idx]);
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return -1;
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}
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/* protect the address range */
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/* this assumes that ONLY the firmware is protected! */
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if (idx == IDX_FIRMWARE)
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flash_sect_protect(1, start, end);
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return 0;
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}
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/*
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* this is called from board_init() after the hardware has been set up
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* and is usable. That seems like a good time to do this.
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* Right now the return value is ignored.
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*/
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int do_auto_update(void)
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{
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block_dev_desc_t *stor_dev;
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long sz;
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int i, res = 0, bitmap_first, cnt, old_ctrlc, got_ctrlc;
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char *env;
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long start, end;
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#if 0 /* disable key-press detection to speed up boot-up time */
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uchar keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0};
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/*
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* Read keypad status
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*/
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i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status1, 2);
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wait_ms(500);
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i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status2, 2);
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/*
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* Check keypad
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*/
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if ( !(keypad_status1[1] & KEYPAD_MASK_LO) ||
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(keypad_status1[1] != keypad_status2[1])) {
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return 0;
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}
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#endif
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au_usb_stor_curr_dev = -1;
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/* start USB */
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if (usb_stop() < 0) {
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debug ("usb_stop failed\n");
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return -1;
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}
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if (usb_init() < 0) {
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debug ("usb_init failed\n");
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return -1;
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}
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/*
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* check whether a storage device is attached (assume that it's
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* a USB memory stick, since nothing else should be attached).
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*/
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au_usb_stor_curr_dev = usb_stor_scan(0);
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if (au_usb_stor_curr_dev == -1) {
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debug ("No device found. Not initialized?\n");
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res = -1;
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goto xit;
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}
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/* check whether it has a partition table */
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stor_dev = get_dev("usb", 0);
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if (stor_dev == NULL) {
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debug ("uknown device type\n");
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res = -1;
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goto xit;
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}
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if (fat_register_device(stor_dev, 1) != 0) {
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debug ("Unable to use USB %d:%d for fatls\n",
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au_usb_stor_curr_dev, 1);
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res = -1;
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goto xit;
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}
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if (file_fat_detectfs() != 0) {
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debug ("file_fat_detectfs failed\n");
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}
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/*
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* now check whether start and end are defined using environment
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* variables.
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*/
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start = -1;
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end = 0;
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env = getenv("firmware_st");
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if (env != NULL)
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start = simple_strtoul(env, NULL, 16);
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env = getenv("firmware_nd");
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if (env != NULL)
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end = simple_strtoul(env, NULL, 16);
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if (start >= 0 && end && end > start) {
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ausize[IDX_FIRMWARE] = (end + 1) - start;
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aufl_layout[IDX_FIRMWARE].start = start;
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aufl_layout[IDX_FIRMWARE].end = end;
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}
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start = -1;
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end = 0;
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env = getenv("kernel_st");
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if (env != NULL)
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start = simple_strtoul(env, NULL, 16);
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env = getenv("kernel_nd");
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if (env != NULL)
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end = simple_strtoul(env, NULL, 16);
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if (start >= 0 && end && end > start) {
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ausize[IDX_KERNEL] = (end + 1) - start;
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aufl_layout[IDX_KERNEL].start = start;
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aufl_layout[IDX_KERNEL].end = end;
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}
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start = -1;
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end = 0;
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env = getenv("rootfs_st");
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if (env != NULL)
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start = simple_strtoul(env, NULL, 16);
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env = getenv("rootfs_nd");
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if (env != NULL)
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end = simple_strtoul(env, NULL, 16);
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if (start >= 0 && end && end > start) {
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ausize[IDX_ROOTFS] = (end + 1) - start;
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aufl_layout[IDX_ROOTFS].start = start;
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aufl_layout[IDX_ROOTFS].end = end;
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}
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/* make certain that HUSH is runnable */
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u_boot_hush_start();
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/* make sure that we see CTRL-C and save the old state */
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old_ctrlc = disable_ctrlc(0);
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bitmap_first = 0;
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/* validate the images first */
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for (i = 0; i < AU_MAXFILES; i++) {
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ulong imsize;
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/* just read the header */
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sz = file_fat_read(aufile[i], LOAD_ADDR, sizeof(image_header_t));
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debug ("read %s sz %ld hdr %d\n",
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aufile[i], sz, sizeof(image_header_t));
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if (sz <= 0 || sz < sizeof(image_header_t)) {
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debug ("%s not found\n", aufile[i]);
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ausize[i] = 0;
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continue;
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}
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/* au_check_header_valid() updates ausize[] */
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if ((imsize = au_check_header_valid(i, sz)) < 0) {
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debug ("%s header not valid\n", aufile[i]);
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continue;
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}
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/* totsize accounts for image size and flash erase size */
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totsize += (imsize + (aufl_layout[i].end - aufl_layout[i].start));
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}
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#ifdef CONFIG_PROGRESSBAR
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if (totsize) {
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lcd_puts(" Update in progress\n");
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lcd_enable();
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}
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#endif
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/* just loop thru all the possible files */
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for (i = 0; i < AU_MAXFILES && totsize; i++) {
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if (!ausize[i]) {
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continue;
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}
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sz = file_fat_read(aufile[i], LOAD_ADDR, ausize[i]);
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debug ("read %s sz %ld hdr %d\n",
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aufile[i], sz, sizeof(image_header_t));
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if (sz != ausize[i]) {
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printf ("%s: size %d read %d?\n", aufile[i], ausize[i], sz);
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continue;
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}
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if (sz <= 0 || sz <= sizeof(image_header_t)) {
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debug ("%s not found\n", aufile[i]);
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continue;
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}
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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 */
|
|
|