mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 05:42:58 +00:00
2972d7d62f
This allows image type print_header() callback to access struct image_tool_params *params. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org>
336 lines
7.4 KiB
C
336 lines
7.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2012-2014 Freescale Semiconductor, Inc.
|
|
*/
|
|
#include "imagetool.h"
|
|
#include <image.h>
|
|
#include "pblimage.h"
|
|
#include "pbl_crc32.h"
|
|
#include <u-boot/crc.h>
|
|
|
|
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
|
|
#define PBL_ACS_CONT_CMD 0x81000000
|
|
#define PBL_ADDR_24BIT_MASK 0x00ffffff
|
|
|
|
/*
|
|
* Initialize to an invalid value.
|
|
*/
|
|
static uint32_t next_pbl_cmd = 0x82000000;
|
|
/*
|
|
* need to store all bytes in memory for calculating crc32, then write the
|
|
* bytes to image file for PBL boot.
|
|
*/
|
|
static unsigned char mem_buf[1000000];
|
|
static unsigned char *pmem_buf = mem_buf;
|
|
static int pbl_size;
|
|
static char *fname = "Unknown";
|
|
static int lineno = -1;
|
|
static struct pbl_header pblimage_header;
|
|
static int uboot_size;
|
|
static int arch_flag;
|
|
|
|
static uint32_t pbl_cmd_initaddr;
|
|
static uint32_t pbi_crc_cmd1;
|
|
static uint32_t pbi_crc_cmd2;
|
|
static uint32_t pbl_end_cmd[4];
|
|
|
|
static union
|
|
{
|
|
char c[4];
|
|
unsigned char l;
|
|
} endian_test = { {'l', '?', '?', 'b'} };
|
|
|
|
#define ENDIANNESS ((char)endian_test.l)
|
|
|
|
/*
|
|
* The PBL can load up to 64 bytes at a time, so we split the U-Boot
|
|
* image into 64 byte chunks. PBL needs a command for each piece, of
|
|
* the form "81xxxxxx", where "xxxxxx" is the offset. Calculate the
|
|
* start offset by subtracting the size of the u-boot image from the
|
|
* top of the allowable 24-bit range.
|
|
*/
|
|
static void generate_pbl_cmd(void)
|
|
{
|
|
uint32_t val = next_pbl_cmd;
|
|
next_pbl_cmd += 0x40;
|
|
int i;
|
|
|
|
for (i = 3; i >= 0; i--) {
|
|
*pmem_buf++ = (val >> (i * 8)) & 0xff;
|
|
pbl_size++;
|
|
}
|
|
}
|
|
|
|
static void pbl_fget(size_t size, FILE *stream)
|
|
{
|
|
unsigned char c = 0xff;
|
|
int c_temp;
|
|
|
|
while (size) {
|
|
c_temp = fgetc(stream);
|
|
if (c_temp != EOF)
|
|
c = (unsigned char)c_temp;
|
|
else if ((c_temp == EOF) && (arch_flag == IH_ARCH_ARM))
|
|
c = 0xff;
|
|
*pmem_buf++ = c;
|
|
pbl_size++;
|
|
size--;
|
|
}
|
|
}
|
|
|
|
/* load split u-boot with PBI command 81xxxxxx. */
|
|
static void load_uboot(FILE *fp_uboot)
|
|
{
|
|
next_pbl_cmd = pbl_cmd_initaddr - uboot_size;
|
|
while (next_pbl_cmd < pbl_cmd_initaddr) {
|
|
generate_pbl_cmd();
|
|
pbl_fget(64, fp_uboot);
|
|
}
|
|
}
|
|
|
|
static void check_get_hexval(char *token)
|
|
{
|
|
uint32_t hexval;
|
|
int i;
|
|
|
|
if (!sscanf(token, "%x", &hexval)) {
|
|
printf("Error:%s[%d] - Invalid hex data(%s)\n", fname,
|
|
lineno, token);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
for (i = 3; i >= 0; i--) {
|
|
*pmem_buf++ = (hexval >> (i * 8)) & 0xff;
|
|
pbl_size++;
|
|
}
|
|
}
|
|
|
|
static void pbl_parser(char *name)
|
|
{
|
|
FILE *fd = NULL;
|
|
char *line = NULL;
|
|
char *token, *saveptr1, *saveptr2;
|
|
size_t len = 0;
|
|
|
|
fname = name;
|
|
fd = fopen(name, "r");
|
|
if (fd == NULL) {
|
|
printf("Error:%s - Can't open\n", fname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
while ((getline(&line, &len, fd)) > 0) {
|
|
lineno++;
|
|
token = strtok_r(line, "\r\n", &saveptr1);
|
|
/* drop all lines with zero tokens (= empty lines) */
|
|
if (token == NULL)
|
|
continue;
|
|
for (line = token;; line = NULL) {
|
|
token = strtok_r(line, " \t", &saveptr2);
|
|
if (token == NULL)
|
|
break;
|
|
/* Drop all text starting with '#' as comments */
|
|
if (token[0] == '#')
|
|
break;
|
|
check_get_hexval(token);
|
|
}
|
|
}
|
|
if (line)
|
|
free(line);
|
|
fclose(fd);
|
|
}
|
|
|
|
static uint32_t reverse_byte(uint32_t val)
|
|
{
|
|
uint32_t temp;
|
|
unsigned char *p1;
|
|
int j;
|
|
|
|
temp = val;
|
|
p1 = (unsigned char *)&temp;
|
|
for (j = 3; j >= 0; j--)
|
|
*p1++ = (val >> (j * 8)) & 0xff;
|
|
return temp;
|
|
}
|
|
|
|
/* write end command and crc command to memory. */
|
|
static void add_end_cmd(void)
|
|
{
|
|
uint32_t crc32_pbl;
|
|
int i;
|
|
unsigned char *p = (unsigned char *)&pbl_end_cmd;
|
|
|
|
if (ENDIANNESS == 'l') {
|
|
for (i = 0; i < 4; i++)
|
|
pbl_end_cmd[i] = reverse_byte(pbl_end_cmd[i]);
|
|
}
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
*pmem_buf++ = *p++;
|
|
pbl_size++;
|
|
}
|
|
|
|
/* Add PBI CRC command. */
|
|
*pmem_buf++ = 0x08;
|
|
*pmem_buf++ = pbi_crc_cmd1;
|
|
*pmem_buf++ = pbi_crc_cmd2;
|
|
*pmem_buf++ = 0x40;
|
|
pbl_size += 4;
|
|
|
|
/* calculated CRC32 and write it to memory. */
|
|
crc32_pbl = pbl_crc32(0, (const char *)mem_buf, pbl_size);
|
|
*pmem_buf++ = (crc32_pbl >> 24) & 0xff;
|
|
*pmem_buf++ = (crc32_pbl >> 16) & 0xff;
|
|
*pmem_buf++ = (crc32_pbl >> 8) & 0xff;
|
|
*pmem_buf++ = (crc32_pbl) & 0xff;
|
|
pbl_size += 4;
|
|
}
|
|
|
|
void pbl_load_uboot(int ifd, struct image_tool_params *params)
|
|
{
|
|
FILE *fp_uboot;
|
|
int size;
|
|
|
|
/* parse the rcw.cfg file. */
|
|
pbl_parser(params->imagename);
|
|
|
|
/* parse the pbi.cfg file. */
|
|
if (params->imagename2[0] != '\0')
|
|
pbl_parser(params->imagename2);
|
|
|
|
if (params->datafile) {
|
|
fp_uboot = fopen(params->datafile, "r");
|
|
if (fp_uboot == NULL) {
|
|
printf("Error: %s open failed\n", params->datafile);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
load_uboot(fp_uboot);
|
|
fclose(fp_uboot);
|
|
}
|
|
add_end_cmd();
|
|
lseek(ifd, 0, SEEK_SET);
|
|
|
|
size = pbl_size;
|
|
if (write(ifd, (const void *)&mem_buf, size) != size) {
|
|
fprintf(stderr, "Write error on %s: %s\n",
|
|
params->imagefile, strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
static int pblimage_check_image_types(uint8_t type)
|
|
{
|
|
if (type == IH_TYPE_PBLIMAGE)
|
|
return EXIT_SUCCESS;
|
|
else
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
static int pblimage_verify_header(unsigned char *ptr, int image_size,
|
|
struct image_tool_params *params)
|
|
{
|
|
struct pbl_header *pbl_hdr = (struct pbl_header *) ptr;
|
|
uint32_t rcwheader;
|
|
|
|
if (params->arch == IH_ARCH_ARM)
|
|
rcwheader = RCW_ARM_HEADER;
|
|
else
|
|
rcwheader = RCW_PPC_HEADER;
|
|
|
|
/* Only a few checks can be done: search for magic numbers */
|
|
if (ENDIANNESS == 'l') {
|
|
if (pbl_hdr->preamble != reverse_byte(RCW_PREAMBLE))
|
|
return -FDT_ERR_BADSTRUCTURE;
|
|
|
|
if (pbl_hdr->rcwheader != reverse_byte(rcwheader))
|
|
return -FDT_ERR_BADSTRUCTURE;
|
|
} else {
|
|
if (pbl_hdr->preamble != RCW_PREAMBLE)
|
|
return -FDT_ERR_BADSTRUCTURE;
|
|
|
|
if (pbl_hdr->rcwheader != rcwheader)
|
|
return -FDT_ERR_BADSTRUCTURE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void pblimage_print_header(const void *ptr, struct image_tool_params *params)
|
|
{
|
|
printf("Image Type: Freescale PBL Boot Image\n");
|
|
}
|
|
|
|
static void pblimage_set_header(void *ptr, struct stat *sbuf, int ifd,
|
|
struct image_tool_params *params)
|
|
{
|
|
/*nothing need to do, pbl_load_uboot takes care of whole file. */
|
|
}
|
|
|
|
int pblimage_check_params(struct image_tool_params *params)
|
|
{
|
|
FILE *fp_uboot;
|
|
int fd;
|
|
struct stat st;
|
|
|
|
if (!params)
|
|
return EXIT_FAILURE;
|
|
|
|
if (params->datafile) {
|
|
fp_uboot = fopen(params->datafile, "r");
|
|
if (fp_uboot == NULL) {
|
|
printf("Error: %s open failed\n", params->datafile);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
fd = fileno(fp_uboot);
|
|
|
|
if (fstat(fd, &st) == -1) {
|
|
printf("Error: Could not determine u-boot image size. %s\n",
|
|
strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/* For the variable size, pad it to 64 byte boundary */
|
|
uboot_size = roundup(st.st_size, 64);
|
|
fclose(fp_uboot);
|
|
}
|
|
|
|
if (params->arch == IH_ARCH_ARM) {
|
|
arch_flag = IH_ARCH_ARM;
|
|
pbi_crc_cmd1 = 0x61;
|
|
pbi_crc_cmd2 = 0;
|
|
pbl_cmd_initaddr = params->addr & PBL_ADDR_24BIT_MASK;
|
|
pbl_cmd_initaddr |= PBL_ACS_CONT_CMD;
|
|
pbl_cmd_initaddr += uboot_size;
|
|
pbl_end_cmd[0] = 0x09610000;
|
|
pbl_end_cmd[1] = 0x00000000;
|
|
pbl_end_cmd[2] = 0x096100c0;
|
|
pbl_end_cmd[3] = 0x00000000;
|
|
} else if (params->arch == IH_ARCH_PPC) {
|
|
arch_flag = IH_ARCH_PPC;
|
|
pbi_crc_cmd1 = 0x13;
|
|
pbi_crc_cmd2 = 0x80;
|
|
pbl_cmd_initaddr = 0x82000000;
|
|
pbl_end_cmd[0] = 0x091380c0;
|
|
pbl_end_cmd[1] = 0x00000000;
|
|
pbl_end_cmd[2] = 0x091380c0;
|
|
pbl_end_cmd[3] = 0x00000000;
|
|
}
|
|
|
|
next_pbl_cmd = pbl_cmd_initaddr;
|
|
return 0;
|
|
};
|
|
|
|
/* pblimage parameters */
|
|
U_BOOT_IMAGE_TYPE(
|
|
pblimage,
|
|
"Freescale PBL Boot Image support",
|
|
sizeof(struct pbl_header),
|
|
(void *)&pblimage_header,
|
|
pblimage_check_params,
|
|
pblimage_verify_header,
|
|
pblimage_print_header,
|
|
pblimage_set_header,
|
|
NULL,
|
|
pblimage_check_image_types,
|
|
NULL,
|
|
NULL
|
|
);
|