[people/ms/u-boot.git] / board / trab / auto_update.c

/*
 * (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 CFG_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 CFG_HUSH_PARSER
#error "must define CFG_HUSH_PARSER"
#endif

#if !(CONFIG_COMMANDS & CFG_CMD_FAT)
#error "must define CFG_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 firmware.img is found load it into memory. If it is valid,
 *		burn it into FLASH and update the EEPROM.
 *	4) if kernel.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	"firmware.img"
#define AU_KERNEL	"kernel.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, 16 MB RAM */
#define AU_FL_FIRMWARE_ST	0x00000000
#define AU_FL_FIRMWARE_ND	0x0003FFFF
#define AU_FL_KERNEL_ST		0x00040000
#define AU_FL_KERNEL_ND		0x0011FFFF
#define AU_FL_APP_ST		0x00120000
#define AU_FL_APP_ND		0x003FFFFF
#define AU_FL_DISK_ST		0x00400000
#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 *)0x0C100100)
/* where to build strings in memory - 256 bytes should be enough */
#define STRING_ADDR ((char *)0x0C100000)
/* the disk is the largest image */
#define MAX_LOADSZ ausize[IDX_DISK]

/* 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
/* 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);

int
au_check_valid(int idx, long nbytes)
{
	image_header_t *hdr;
	unsigned long checksum;
	unsigned char buf[4];

	hdr = (image_header_t *)LOAD_ADDR;
	/* check the easy ones first */
#undef CHECK_VALID_DEBUG
#ifdef CHECK_VALID_DEBUG
	printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
	printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM);
	printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
	printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
#endif
	if (ntohl(hdr->ih_magic) != IH_MAGIC ||
		hdr->ih_arch != IH_CPU_ARM ||
		nbytes < ntohl(hdr->ih_size)) {
	    printf ("Image %s bad MAGIC or ARCH or SIZE\n", aufile[idx]);
	    return -1;
	}
	/* check the hdr CRC */
	checksum = ntohl(hdr->ih_hcrc);
	hdr->ih_hcrc = 0;

	if (crc32 (0, (char *)hdr, sizeof(*hdr)) != checksum) {
	    printf ("Image %s bad header checksum\n", aufile[idx]);
	    return -1;
	}
	/* check the data CRC */
	checksum = ntohl(hdr->ih_dcrc);

	if (crc32 (0, (char *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size))
		!= checksum)
	{
	    printf ("Image %s bad data checksum\n", aufile[idx]);
	    return -1;
	}
	/* check the type - could do this all in one gigantic if() */
	if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
	    printf ("Image %s wrong type\n", aufile[idx]);
	    return -1;
	}
	if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) {
	    printf ("Image %s wrong type\n", aufile[idx]);
	    return -1;
	}
	if ((idx == IDX_DISK || idx == IDX_APP)
		&& (hdr->ih_type != IH_TYPE_RAMDISK))
	{
	    printf ("Image %s wrong type\n", aufile[idx]);
	    return -1;
	}
	if ((idx == IDX_PREPARE || idx == IDX_PREINST || idx == IDX_POSTINST)
		&& (hdr->ih_type != IH_TYPE_SCRIPT))
	{
	    printf ("Image %s wrong type\n", aufile[idx]);
	    return -1;
	}
	/* special case for prepare.img */
	if (idx == IDX_PREPARE)
		return 0;
	/* check the size does not exceed space in flash */
	if ((ausize[idx] != 0) && (ausize[idx] < ntohl(hdr->ih_size))) {
	    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), ntohl(hdr->ih_time));
#endif
	/* check it */
	if (*((unsigned int *)buf) >= ntohl(hdr->ih_time)) {
	    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;
	char *strbuf = STRING_ADDR;
	int off;
	uint nbytes;

	hdr = (image_header_t *)LOAD_ADDR;

	/* disable the power switch */
	*CPLD_VFD_BK |= POWER_OFF;

	/* execute a script */
	if (hdr->ih_type == IH_TYPE_SCRIPT) {
		addr = (char *)((char *)hdr + sizeof(*hdr) + 8);
		parse_string_outer(addr,
			FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
		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
		debug ("protect off %lx %lx\n", start, end);
		sprintf(strbuf, "protect off %lx %lx\n", start, end);
		parse_string_outer(strbuf,
			FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
	}

	/* erase the address range */
	debug ("erase %lx %lx\n", start, end);
	sprintf(strbuf, "erase %lx %lx\n", start, end);
	parse_string_outer(strbuf,
		FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);

	/* strip the header - except for the kernel */
	if (idx == IDX_FIRMWARE || idx == IDX_DISK || idx == IDX_APP) {
		addr = (char *)((char *)hdr + sizeof(*hdr));
#ifdef AU_UPDATE_TEST
		/* copy it to where Linux goes */
		if (idx == IDX_FIRMWARE)
			start = aufl_layout[1].start;
#endif
		off = 0;
		nbytes = ntohl(hdr->ih_size);
	} else {
		addr = (char *)hdr;
		off = sizeof(*hdr);
		nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
	}

	/* copy the data from RAM to FLASH */
	debug ("cp.b %p %lx %x\n", addr, start, nbytes);
	sprintf(strbuf, "cp.b %p %lx %x\n", addr, start, nbytes);
	parse_string_outer(strbuf,
		FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);

	/* check the dcrc of the copy */
	if (crc32 (0, (char *)(start + off), ntohl(hdr->ih_size))
		!= ntohl(hdr->ih_dcrc)) {
	    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) {
		printf("protect on %lx %lx\n", start, end);
		sprintf(strbuf, "protect on %lx %lx\n", start, end);
		parse_string_outer(strbuf,
			FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP);
	}
	return 0;
}

int
au_update_eeprom(int idx)
{
	image_header_t *hdr;
	int off;
	uint32_t val;

	hdr = (image_header_t *)LOAD_ADDR;
	/* write the time field into EEPROM */
	off = auee_off[idx].time;
	val = ntohl(hdr->ih_time);
	i2c_write_multiple(0x54, off, 1, &val, sizeof(val));
	/* write the size field into EEPROM */
	off = auee_off[idx].size;
	val = ntohl(hdr->ih_size);
	i2c_write_multiple(0x54, off, 1, &val, sizeof(val));
	/* write the dcrc field into EEPROM */
	off = auee_off[idx].dcrc;
	val = ntohl(hdr->ih_dcrc);
	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, bitmap_first, cnt;
	char *env;

#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(1);
	if (au_usb_stor_curr_dev == -1) {
		debug ("No device found. Not initialized?\n");
		return -1;
	}
	/* check whether it has a partition table */
	stor_dev = usb_stor_get_dev(au_usb_stor_curr_dev);
	if (stor_dev->type == DEV_TYPE_UNKNOWN) {
		debug ("uknown device type\n");
		return -1;
	}
	if (fat_register_device(stor_dev, 1) != 0) {
		debug ("Unable to use USB %d:%d for fatls\n",
			au_usb_stor_curr_dev, 1);
		return -1;
	}
	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;
	bitmap_first = 0;
	/* just loop thru all the possible files */
	for (i = 0; i < AU_MAXFILES; i++) {
		sz = file_fat_read(aufile[i], LOAD_ADDR, MAX_LOADSZ);
		debug ("read %s sz %ld hdr %d\n",
			aufile[i], sz, sizeof(image_header_t));
		if (sz <= 0 || sz <= sizeof(image_header_t)) {
			debug ("%s not found\n", aufile[i]);
			continue;
		}
		if (au_check_valid(i, sz) < 0) {
			debug ("%s 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, 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;
		do {
			res = au_do_update(i, sz);
#ifdef AU_TEST_ONLY
			cnt++;
		} while (res < 0 && cnt < 3);
		if (cnt < 3)
#else
		} while (res < 0);
#endif
		au_update_eeprom(i);
	}
	usb_stop();
	return 0;
}
#endif /* CONFIG_AUTO_UPDATE */
Commit	Line	Data
f54ebdfa WD	1	/*
	2	* (C) Copyright 2003
	3	* Gary Jennejohn, DENX Software Engineering, gj@denx.de.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <command.h>
	26	#include <malloc.h>
	27	#include <image.h>
	28	#include <asm/byteorder.h>
	29	#include <usb.h>
	30
	31	#ifdef CFG_HUSH_PARSER
	32	#include <hush.h>
	33	#endif
	34
	35	#ifdef CONFIG_AUTO_UPDATE
	36
	37	#ifndef CONFIG_USB_OHCI
	38	#error "must define CONFIG_USB_OHCI"
	39	#endif
	40
	41	#ifndef CONFIG_USB_STORAGE
	42	#error "must define CONFIG_USB_STORAGE"
	43	#endif
	44
	45	#ifndef CFG_HUSH_PARSER
	46	#error "must define CFG_HUSH_PARSER"
	47	#endif
	48
	49	#if !(CONFIG_COMMANDS & CFG_CMD_FAT)
	50	#error "must define CFG_CMD_FAT"
	51	#endif
	52
	53	/*
	54	* Check whether a USB memory stick is plugged in.
	55	* If one is found:
b0639ca3 WD	56	* 1) if prepare.img ist found load it into memory. If it is
	57	* valid then run it.
	58	* 2) if preinst.img is found load it into memory. If it is
	59	* valid then run it. Update the EEPROM.
	60	* 3) if firmware.img is found load it into memory. If it is valid,
	61	* burn it into FLASH and update the EEPROM.
	62	* 4) if kernel.img is found load it into memory. If it is valid,
	63	* burn it into FLASH and update the EEPROM.
	64	* 5) if app.img is found load it into memory. If it is valid,
	65	* burn it into FLASH and update the EEPROM.
	66	* 6) if disk.img is found load it into memory. If it is valid,
	67	* burn it into FLASH and update the EEPROM.
	68	* 7) if postinst.img is found load it into memory. If it is
	69	* valid then run it. Update the EEPROM.
f54ebdfa WD	70	*/
	71
	72	#undef AU_DEBUG
	73
	74	#undef debug
	75	#ifdef AU_DEBUG
	76	#define debug(fmt,args...) printf (fmt ,##args)
	77	#else
	78	#define debug(fmt,args...)
	79	#endif /* AU_DEBUG */
	80
	81	/* possible names of files on the USB stick. */
	82	#define AU_PREPARE "prepare.img"
	83	#define AU_PREINST "preinst.img"
	84	#define AU_FIRMWARE "firmware.img"
	85	#define AU_KERNEL "kernel.img"
	86	#define AU_APP "app.img"
	87	#define AU_DISK "disk.img"
	88	#define AU_POSTINST "postinst.img"
	89
b0639ca3 WD	90	struct flash_layout
	91	{
	92	long start;
	93	long end;
	94	};
	95
f54ebdfa	96	/* layout of the FLASH. ST = start address, ND = end address. */
b0639ca3	97	#ifndef CONFIG_FLASH_8MB /* 16 MB Flash, 32 MB RAM */
f54ebdfa WD	98	#define AU_FL_FIRMWARE_ST 0x00000000
	99	#define AU_FL_FIRMWARE_ND 0x0009FFFF
	100	#define AU_FL_VFD_ST 0x000A0000
	101	#define AU_FL_VFD_ND 0x000BFFFF
	102	#define AU_FL_KERNEL_ST 0x000C0000
	103	#define AU_FL_KERNEL_ND 0x001BFFFF
	104	#define AU_FL_APP_ST 0x001C0000
	105	#define AU_FL_APP_ND 0x005BFFFF
	106	#define AU_FL_DISK_ST 0x005C0000
	107	#define AU_FL_DISK_ND 0x00FFFFFF
	108	#else /* 8 MB Flash, 16 MB RAM */
	109	#define AU_FL_FIRMWARE_ST 0x00000000
	110	#define AU_FL_FIRMWARE_ND 0x0003FFFF
	111	#define AU_FL_KERNEL_ST 0x00040000
	112	#define AU_FL_KERNEL_ND 0x0011FFFF
	113	#define AU_FL_APP_ST 0x00120000
	114	#define AU_FL_APP_ND 0x003FFFFF
	115	#define AU_FL_DISK_ST 0x00400000
	116	#define AU_FL_DISK_ND 0x007DFFFF
	117	#define AU_FL_VFD_ST 0x007E0000
	118	#define AU_FL_VFD_ND 0x007FFFFF
b0639ca3	119	#endif /* CONFIG_FLASH_8MB */
f54ebdfa WD	120
	121	/* a structure with the offsets to values in the EEPROM */
	122	struct eeprom_layout
	123	{
b0639ca3 WD	124	int time;
	125	int size;
	126	int dcrc;
f54ebdfa WD	127	};
	128
	129	/* layout of the EEPROM - offset from the start. All entries are 32 bit. */
	130	#define AU_EEPROM_TIME_PREINST 64
	131	#define AU_EEPROM_SIZE_PREINST 68
	132	#define AU_EEPROM_DCRC_PREINST 72
	133	#define AU_EEPROM_TIME_FIRMWARE 76
	134	#define AU_EEPROM_SIZE_FIRMWARE 80
	135	#define AU_EEPROM_DCRC_FIRMWARE 84
	136	#define AU_EEPROM_TIME_KERNEL 88
	137	#define AU_EEPROM_SIZE_KERNEL 92
	138	#define AU_EEPROM_DCRC_KERNEL 96
	139	#define AU_EEPROM_TIME_APP 100
	140	#define AU_EEPROM_SIZE_APP 104
	141	#define AU_EEPROM_DCRC_APP 108
	142	#define AU_EEPROM_TIME_DISK 112
	143	#define AU_EEPROM_SIZE_DISK 116
	144	#define AU_EEPROM_DCRC_DISK 120
	145	#define AU_EEPROM_TIME_POSTINST 124
	146	#define AU_EEPROM_SIZE_POSTINST 128
	147	#define AU_EEPROM_DCRC_POSTINST 132
	148
	149	static int au_usb_stor_curr_dev; /* current device */
b0639ca3 WD	150
	151	/* index of each file in the following arrays */
	152	#define IDX_PREPARE 0
	153	#define IDX_PREINST 1
	154	#define IDX_FIRMWARE 2
	155	#define IDX_KERNEL 3
	156	#define IDX_APP 4
	157	#define IDX_DISK 5
	158	#define IDX_POSTINST 6
f54ebdfa WD	159	/* max. number of files which could interest us */
	160	#define AU_MAXFILES 7
	161	/* pointers to file names */
	162	char *aufile[AU_MAXFILES];
	163	/* sizes of flash areas for each file */
	164	long ausize[AU_MAXFILES];
	165	/* offsets into the EEEPROM */
	166	struct eeprom_layout auee_off[AU_MAXFILES] = { \
	167	{0}, \
	168	{AU_EEPROM_TIME_PREINST, AU_EEPROM_SIZE_PREINST, AU_EEPROM_DCRC_PREINST,}, \
	169	{AU_EEPROM_TIME_FIRMWARE, AU_EEPROM_SIZE_FIRMWARE, AU_EEPROM_DCRC_FIRMWARE,}, \
	170	{AU_EEPROM_TIME_KERNEL, AU_EEPROM_SIZE_KERNEL, AU_EEPROM_DCRC_KERNEL,}, \
	171	{AU_EEPROM_TIME_APP, AU_EEPROM_SIZE_APP, AU_EEPROM_DCRC_APP,}, \
	172	{AU_EEPROM_TIME_DISK, AU_EEPROM_SIZE_DISK, AU_EEPROM_DCRC_DISK,}, \
	173	{AU_EEPROM_TIME_POSTINST, AU_EEPROM_SIZE_POSTINST, AU_EEPROM_DCRC_POSTINST,} \
	174	};
b0639ca3 WD	175	/* array of flash areas start and end addresses */
	176	struct flash_layout aufl_layout[AU_MAXFILES - 3] = { \
	177	{AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND,}, \
	178	{AU_FL_KERNEL_ST, AU_FL_KERNEL_ND,}, \
	179	{AU_FL_APP_ST, AU_FL_APP_ND,}, \
	180	{AU_FL_DISK_ST, AU_FL_DISK_ND,}, \
	181	};
	182	/* convert the index into aufile[] to an index into aufl_layout[] */
	183	#define FIDX_TO_LIDX(idx) ((idx) - 2)
	184
f54ebdfa	185	/* where to load files into memory */
b0639ca3 WD	186	#define LOAD_ADDR ((unsigned char *)0x0C100100)
	187	/* where to build strings in memory - 256 bytes should be enough */
	188	#define STRING_ADDR ((char *)0x0C100000)
f54ebdfa WD	189	/* the disk is the largest image */
	190	#define MAX_LOADSZ ausize[IDX_DISK]
	191
	192	/* externals */
	193	extern int fat_register_device(block_dev_desc_t *, int);
	194	extern int file_fat_detectfs(void);
	195	extern long file_fat_read(const char , void , unsigned long);
	196	extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int);
	197	extern int i2c_write (uchar, uint, int , uchar* , int);
	198	#ifdef CONFIG_VFD
	199	extern int trab_vfd (ulong);
	200	extern int transfer_pic(unsigned char, unsigned char *, int, int);
	201	#endif
b0639ca3 WD	202	/* change char* to void* to shutup the compiler */
	203	extern int i2c_write_multiple (uchar, uint, int, void *, int);
	204	extern int i2c_read_multiple (uchar, uint, int, void *, int);
f54ebdfa WD	205
	206	int
	207	au_check_valid(int idx, long nbytes)
	208	{
	209	image_header_t *hdr;
	210	unsigned long checksum;
	211	unsigned char buf[4];
	212
	213	hdr = (image_header_t *)LOAD_ADDR;
	214	/* check the easy ones first */
b0639ca3	215	#undef CHECK_VALID_DEBUG
f54ebdfa WD	216	#ifdef CHECK_VALID_DEBUG
	217	printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
	218	printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM);
	219	printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
	220	printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
	221	#endif
	222	if (ntohl(hdr->ih_magic) != IH_MAGIC \|\|
	223	hdr->ih_arch != IH_CPU_ARM \|\|
	224	nbytes < ntohl(hdr->ih_size)) {
b0639ca3	225	printf ("Image %s bad MAGIC or ARCH or SIZE\n", aufile[idx]);
f54ebdfa WD	226	return -1;
	227	}
	228	/* check the hdr CRC */
	229	checksum = ntohl(hdr->ih_hcrc);
	230	hdr->ih_hcrc = 0;
	231
	232	if (crc32 (0, (char )hdr, sizeof(hdr)) != checksum) {
b0639ca3	233	printf ("Image %s bad header checksum\n", aufile[idx]);
f54ebdfa WD	234	return -1;
	235	}
	236	/* check the data CRC */
	237	checksum = ntohl(hdr->ih_dcrc);
	238
	239	if (crc32 (0, (char )(LOAD_ADDR + sizeof(hdr)), ntohl(hdr->ih_size))
	240	!= checksum)
	241	{
b0639ca3	242	printf ("Image %s bad data checksum\n", aufile[idx]);
f54ebdfa WD	243	return -1;
	244	}
	245	/* check the type - could do this all in one gigantic if() */
	246	if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
b0639ca3	247	printf ("Image %s wrong type\n", aufile[idx]);
f54ebdfa WD	248	return -1;
	249	}
	250	if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) {
b0639ca3	251	printf ("Image %s wrong type\n", aufile[idx]);
f54ebdfa WD	252	return -1;
	253	}
	254	if ((idx == IDX_DISK \|\| idx == IDX_APP)
	255	&& (hdr->ih_type != IH_TYPE_RAMDISK))
	256	{
b0639ca3	257	printf ("Image %s wrong type\n", aufile[idx]);
f54ebdfa WD	258	return -1;
	259	}
	260	if ((idx == IDX_PREPARE \|\| idx == IDX_PREINST \|\| idx == IDX_POSTINST)
	261	&& (hdr->ih_type != IH_TYPE_SCRIPT))
	262	{
b0639ca3	263	printf ("Image %s wrong type\n", aufile[idx]);
f54ebdfa WD	264	return -1;
	265	}
	266	/* special case for prepare.img */
	267	if (idx == IDX_PREPARE)
	268	return 0;
	269	/* check the size does not exceed space in flash */
	270	if ((ausize[idx] != 0) && (ausize[idx] < ntohl(hdr->ih_size))) {
	271	printf ("Image %s is bigger than FLASH\n", aufile[idx]);
	272	return -1;
	273	}
	274	/* check the time stamp from the EEPROM */
	275	/* read it in */
	276	i2c_read_multiple(0x54, auee_off[idx].time, 1, buf, sizeof(buf));
	277	#ifdef CHECK_VALID_DEBUG
	278	printf("buf[0] %#x buf[1] %#x buf[2] %#x buf[3] %#x as int %#x time %#x\n",
	279	buf[0], buf[1], buf[2], buf[3], ((unsigned int )buf), ntohl(hdr->ih_time));
	280	#endif
	281	/* check it */
	282	if (((unsigned int )buf) >= ntohl(hdr->ih_time)) {
	283	printf ("Image %s is too old\n", aufile[idx]);
	284	return -1;
	285	}
	286
	287	return 0;
	288	}
	289
	290	/* power control defines */
	291	#define CPLD_VFD_BK ((volatile char *)0x04038002)
	292	#define POWER_OFF (1 << 1)
	293
	294	int
b0639ca3	295	au_do_update(int idx, long sz)
f54ebdfa WD	296	{
	297	image_header_t *hdr;
	298	char *addr;
b0639ca3 WD	299	long start, end;
	300	char *strbuf = STRING_ADDR;
	301	int off;
	302	uint nbytes;
f54ebdfa WD	303
f54ebdfa WD	304	hdr = (image_header_t *)LOAD_ADDR;
b0639ca3	305
f54ebdfa WD	306	/* disable the power switch */
f54ebdfa WD	307	*CPLD_VFD_BK \|= POWER_OFF;
b0639ca3	308
f54ebdfa WD	309	/* execute a script */
	310	if (hdr->ih_type == IH_TYPE_SCRIPT) {
	311	addr = (char )((char )hdr + sizeof(*hdr) + 8);
	312	parse_string_outer(addr,
	313	FLAG_PARSE_SEMICOLON \| FLAG_EXIT_FROM_LOOP);
	314	return 0;
	315	}
b0639ca3 WD	316
	317	start = aufl_layout[FIDX_TO_LIDX(idx)].start;
	318	end = aufl_layout[FIDX_TO_LIDX(idx)].end;
	319
	320	/* unprotect the address range */
	321	/* this assumes that ONLY the firmware is protected! */
	322	if (idx == IDX_FIRMWARE) {
	323	#undef AU_UPDATE_TEST
	324	#ifdef AU_UPDATE_TEST
	325	/* erase it where Linux goes */
	326	start = aufl_layout[1].start;
	327	end = aufl_layout[1].end;
	328	#endif
	329	debug ("protect off %lx %lx\n", start, end);
	330	sprintf(strbuf, "protect off %lx %lx\n", start, end);
	331	parse_string_outer(strbuf,
	332	FLAG_PARSE_SEMICOLON \| FLAG_EXIT_FROM_LOOP);
	333	}
	334
	335	/* erase the address range */
	336	debug ("erase %lx %lx\n", start, end);
	337	sprintf(strbuf, "erase %lx %lx\n", start, end);
	338	parse_string_outer(strbuf,
	339	FLAG_PARSE_SEMICOLON \| FLAG_EXIT_FROM_LOOP);
	340
	341	/* strip the header - except for the kernel */
	342	if (idx == IDX_FIRMWARE \|\| idx == IDX_DISK \|\| idx == IDX_APP) {
	343	addr = (char )((char )hdr + sizeof(*hdr));
	344	#ifdef AU_UPDATE_TEST
	345	/* copy it to where Linux goes */
	346	if (idx == IDX_FIRMWARE)
	347	start = aufl_layout[1].start;
	348	#endif
	349	off = 0;
	350	nbytes = ntohl(hdr->ih_size);
	351	} else {
	352	addr = (char *)hdr;
	353	off = sizeof(*hdr);
	354	nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
	355	}
	356
	357	/* copy the data from RAM to FLASH */
	358	debug ("cp.b %p %lx %x\n", addr, start, nbytes);
	359	sprintf(strbuf, "cp.b %p %lx %x\n", addr, start, nbytes);
	360	parse_string_outer(strbuf,
	361	FLAG_PARSE_SEMICOLON \| FLAG_EXIT_FROM_LOOP);
	362
	363	/* check the dcrc of the copy */
	364	if (crc32 (0, (char *)(start + off), ntohl(hdr->ih_size))
	365	!= ntohl(hdr->ih_dcrc)) {
	366	printf ("Image %s Bad Data Checksum After COPY\n", aufile[idx]);
	367	return -1;
	368	}
	369
	370	/* protect the address range */
	371	/* this assumes that ONLY the firmware is protected! */
	372	if (idx == IDX_FIRMWARE) {
	373	printf("protect on %lx %lx\n", start, end);
	374	sprintf(strbuf, "protect on %lx %lx\n", start, end);
	375	parse_string_outer(strbuf,
	376	FLAG_PARSE_SEMICOLON \| FLAG_EXIT_FROM_LOOP);
	377	}
f54ebdfa WD	378	return 0;
	379	}
	380
	381	int
	382	au_update_eeprom(int idx)
	383	{
	384	image_header_t *hdr;
b0639ca3 WD	385	int off;
b0639ca3 WD	386	uint32_t val;
f54ebdfa WD	387
f54ebdfa WD	388	hdr = (image_header_t *)LOAD_ADDR;
b0639ca3 WD	389	/* write the time field into EEPROM */
	390	off = auee_off[idx].time;
	391	val = ntohl(hdr->ih_time);
	392	i2c_write_multiple(0x54, off, 1, &val, sizeof(val));
	393	/* write the size field into EEPROM */
	394	off = auee_off[idx].size;
	395	val = ntohl(hdr->ih_size);
	396	i2c_write_multiple(0x54, off, 1, &val, sizeof(val));
	397	/* write the dcrc field into EEPROM */
	398	off = auee_off[idx].dcrc;
	399	val = ntohl(hdr->ih_dcrc);
	400	i2c_write_multiple(0x54, off, 1, &val, sizeof(val));
f54ebdfa WD	401	/* enable the power switch */
	402	*CPLD_VFD_BK &= ~POWER_OFF;
	403	return 0;
	404	}
	405
	406	/*
	407	* this is called from board_init() after the hardware has been set up
	408	* and is usable. That seems like a good time to do this.
	409	* Right now the return value is ignored.
	410	*/
	411	int
	412	do_auto_update(void)
	413	{
	414	block_dev_desc_t *stor_dev;
	415	long sz;
b0639ca3	416	int i, res, bitmap_first, cnt;
f54ebdfa WD	417	char *env;
f54ebdfa WD	418
b0639ca3	419	#undef ERASE_EEPROM
f54ebdfa WD	420	#ifdef ERASE_EEPROM
	421	int arr[18];
	422	memset(arr, 0, sizeof(arr));
	423	i2c_write_multiple(0x54, 64, 1, arr, sizeof(arr));
	424	#endif
	425	au_usb_stor_curr_dev = -1;
	426	/* start USB */
	427	if (usb_stop() < 0) {
	428	debug ("usb_stop failed\n");
	429	return -1;
	430	}
	431	if (usb_init() < 0) {
	432	debug ("usb_init failed\n");
	433	return -1;
	434	}
	435	/*
	436	* check whether a storage device is attached (assume that it's
	437	* a USB memory stick, since nothing else should be attached).
	438	*/
	439	au_usb_stor_curr_dev = usb_stor_scan(1);
	440	if (au_usb_stor_curr_dev == -1) {
	441	debug ("No device found. Not initialized?\n");
	442	return -1;
	443	}
	444	/* check whether it has a partition table */
	445	stor_dev = usb_stor_get_dev(au_usb_stor_curr_dev);
	446	if (stor_dev->type == DEV_TYPE_UNKNOWN) {
	447	debug ("uknown device type\n");
	448	return -1;
	449	}
	450	if (fat_register_device(stor_dev, 1) != 0) {
	451	debug ("Unable to use USB %d:%d for fatls\n",
	452	au_usb_stor_curr_dev, 1);
	453	return -1;
	454	}
	455	if (file_fat_detectfs() != 0) {
	456	debug ("file_fat_detectfs failed\n");
	457	}
b0639ca3	458
f54ebdfa WD	459	/* initialize the array of file names */
	460	memset(aufile, 0, sizeof(aufile));
	461	aufile[IDX_PREPARE] = AU_PREPARE;
	462	aufile[IDX_PREINST] = AU_PREINST;
	463	aufile[IDX_FIRMWARE] = AU_FIRMWARE;
	464	aufile[IDX_KERNEL] = AU_KERNEL;
	465	aufile[IDX_APP] = AU_APP;
	466	aufile[IDX_DISK] = AU_DISK;
	467	aufile[IDX_POSTINST] = AU_POSTINST;
	468	/* initialize the array of flash sizes */
	469	memset(ausize, 0, sizeof(ausize));
	470	ausize[IDX_FIRMWARE] = (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST;
	471	ausize[IDX_KERNEL] = (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST;
	472	ausize[IDX_APP] = (AU_FL_APP_ND + 1) - AU_FL_APP_ST;
	473	ausize[IDX_DISK] = (AU_FL_DISK_ND + 1) - AU_FL_DISK_ST;
	474	bitmap_first = 0;
	475	/* just loop thru all the possible files */
	476	for (i = 0; i < AU_MAXFILES; i++) {
	477	sz = file_fat_read(aufile[i], LOAD_ADDR, MAX_LOADSZ);
	478	debug ("read %s sz %ld hdr %d\n",
	479	aufile[i], sz, sizeof(image_header_t));
	480	if (sz <= 0 \|\| sz <= sizeof(image_header_t)) {
	481	debug ("%s not found\n", aufile[i]);
	482	continue;
	483	}
	484	if (au_check_valid(i, sz) < 0) {
	485	debug ("%s not valid\n", aufile[i]);
	486	continue;
	487	}
	488	#ifdef CONFIG_VFD
	489	/* now that we have a valid file we can display the */
	490	/* bitmap. */
	491	if (bitmap_first == 0) {
	492	env = getenv("bitmap2");
	493	if (env == NULL) {
	494	trab_vfd(0);
	495	} else {
	496	/* not so simple - bitmap2 is supposed to */
	497	/* contain the address of the bitmap */
	498	env = (char *)simple_strtoul(env, NULL, 16);
	499	/* NOTE: these are taken from vfd_logo.h. If that file changes then */
	500	/* these defines MUST also be updated! These may be wrong for bitmap2. */
	501	#define VFD_LOGO_WIDTH 112
	502	#define VFD_LOGO_HEIGHT 72
	503	/* must call transfer_pic directly */
	504	transfer_pic(3, env, VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH);
	505	}
	506	bitmap_first = 1;
	507	}
	508	#endif
	509	/* this is really not a good idea, but it's what the */
	510	/* customer wants. */
b0639ca3	511	cnt = 0;
f54ebdfa	512	do {
b0639ca3 WD	513	res = au_do_update(i, sz);
	514	#ifdef AU_TEST_ONLY
	515	cnt++;
	516	} while (res < 0 && cnt < 3);
	517	if (cnt < 3)
	518	#else
f54ebdfa	519	} while (res < 0);
b0639ca3	520	#endif
f54ebdfa WD	521	au_update_eeprom(i);
f54ebdfa WD	522	}
b0639ca3	523	usb_stop();
f54ebdfa WD	524	return 0;
	525	}
	526	#endif /* CONFIG_AUTO_UPDATE */