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https://github.com/brain-hackers/u-boot-brain
synced 2024-08-18 16:08:53 +09:00
![Wolfgang Denk](/assets/img/avatar_default.png)
The invocation of do_auto_update() is moved to the end of the misc_init_r() function, after the flash mappings have been initialized. Please find attached a patch that implements that change. Also correct the decoding of the keypad status. With this update, the key that will trigger the update is Column 2, Row 2.
458 lines
12 KiB
C
458 lines
12 KiB
C
/*
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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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#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 !(CONFIG_COMMANDS & CFG_CMD_FAT)
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#error "must define CFG_CMD_FAT"
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#endif
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/*
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* Check whether a USB memory stick is plugged in.
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* If one is found:
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* 1) if prepare.img ist found load it into memory. If it is
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* valid then run it.
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* 2) if preinst.img is found load it into memory. If it is
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* valid then run it. Update the EEPROM.
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* 3) if firmw_01.img is found load it into memory. If it is valid,
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* burn it into FLASH and update the EEPROM.
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* 4) if kernl_01.img is found load it into memory. If it is valid,
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* burn it into FLASH and update the EEPROM.
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* 5) if app.img is found load it into memory. If it is valid,
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* burn it into FLASH and update the EEPROM.
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* 6) if disk.img is found load it into memory. If it is valid,
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* burn it into FLASH and update the EEPROM.
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* 7) if postinst.img is found load it into memory. If it is
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* valid then run it. Update the EEPROM.
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*/
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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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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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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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/* max. number of files which could interest us */
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#define AU_MAXFILES 2
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/* pointers to file names */
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char *aufile[AU_MAXFILES];
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/* sizes of flash areas for each file */
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long ausize[AU_MAXFILES];
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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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};
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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 app is the largest image */
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#define MAX_LOADSZ ausize[IDX_KERNEL]
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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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/* change char* to void* to shutup the compiler */
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extern block_dev_desc_t *get_dev (char*, int);
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extern int u_boot_hush_start(void);
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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;
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unsigned char buf[4];
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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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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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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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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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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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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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/* for kernel and app the image header must also fit into flash */
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if (idx != IDX_FIRMWARE)
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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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/* all have ausize[] set to 0 */
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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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return -1;
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}
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return 0;
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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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/* strip the header - except for the kernel and ramdisk */
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if (hdr->ih_type == IH_TYPE_KERNEL) {
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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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/* check the dcrc 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, bitmap_first, cnt, old_ctrlc, got_ctrlc;
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char *env;
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long start, end;
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char 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[0] & KEYPAD_MASK_HI) ||
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(keypad_status1[0] != keypad_status2[0])) {
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return 0;
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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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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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return -1;
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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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return -1;
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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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return -1;
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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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/* initialize the array of file names */
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memset(aufile, 0, sizeof(aufile));
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aufile[IDX_FIRMWARE] = AU_FIRMWARE;
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aufile[IDX_KERNEL] = AU_KERNEL;
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/* initialize the array of flash sizes */
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memset(ausize, 0, sizeof(ausize));
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ausize[IDX_FIRMWARE] = (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST;
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ausize[IDX_KERNEL] = (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST;
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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[0].start = start;
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aufl_layout[0].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[1].start = start;
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aufl_layout[1].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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/* just loop thru all the possible files */
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for (i = 0; i < AU_MAXFILES; i++) {
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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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continue;
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}
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if (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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sz = file_fat_read(aufile[i], LOAD_ADDR, MAX_LOADSZ);
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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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continue;
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}
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if (au_check_cksum_valid(i, sz) < 0) {
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debug ("%s checksum not valid\n", aufile[i]);
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continue;
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}
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/* this is really not a good idea, but it's what the */
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/* customer wants. */
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cnt = 0;
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got_ctrlc = 0;
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do {
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res = au_do_update(i, sz);
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/* let the user break out of the loop */
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if (ctrlc() || had_ctrlc()) {
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clear_ctrlc();
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if (res < 0)
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got_ctrlc = 1;
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break;
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}
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cnt++;
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#ifdef AU_TEST_ONLY
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} while (res < 0 && cnt < 3);
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if (cnt < 3)
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#else
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} while (res < 0);
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#endif
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}
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usb_stop();
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/* restore the old state */
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disable_ctrlc(old_ctrlc);
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return 0;
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}
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#endif /* CONFIG_AUTO_UPDATE */
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