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u-boot/tools/imx8mimage.c
Peng Fan 6609c2663c tools: add i.MX8M image support 
i.MX8M bootable image type is like i.MX6/7, but there is signed HDMI
firmware image in front of A53 bootable image, which is also has an IVT
header.

Here we also include fit image to generate a bootable image.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Stefano Babic <sbabic@denx.de>
2019-01-01 14:12:18 +01:00

624 lines
15 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2018 NXP
*
* Peng Fan <peng.fan@nxp.com>
*/
#include "imagetool.h"
#include <image.h>
#include "imximage.h"
#include "compiler.h"
static uint32_t ap_start_addr, sld_start_addr, sld_src_off;
static char *ap_img, *sld_img, *signed_hdmi;
static imx_header_v3_t imx_header[2]; /* At most there are 3 IVT headers */
static uint32_t rom_image_offset;
static uint32_t sector_size = 0x200;
static uint32_t image_off;
static uint32_t sld_header_off;
static uint32_t ivt_offset;
static uint32_t using_fit;
#define CSF_SIZE 0x2000
#define HDMI_IVT_ID 0
#define IMAGE_IVT_ID 1
#define HDMI_FW_SIZE 0x17000 /* Use Last 0x1000 for IVT and CSF */
#define ALIGN_SIZE 0x1000
#define ALIGN(x,a) __ALIGN_MASK((x), (__typeof__(x))(a) - 1, a)
#define __ALIGN_MASK(x,mask,mask2) (((x) + (mask)) / (mask2) * (mask2))
static uint32_t get_cfg_value(char *token, char *name, int linenr)
{
char *endptr;
uint32_t value;
errno = 0;
value = strtoul(token, &endptr, 16);
if (errno || token == endptr) {
fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
name, linenr, token);
exit(EXIT_FAILURE);
}
return value;
}
int imx8mimage_check_params(struct image_tool_params *params)
{
return 0;
}
static void imx8mimage_set_header(void *ptr, struct stat *sbuf, int ifd,
struct image_tool_params *params)
{
}
static void imx8mimage_print_header(const void *ptr)
{
}
static int imx8mimage_check_image_types(uint8_t type)
{
return (type == IH_TYPE_IMX8MIMAGE) ? EXIT_SUCCESS : EXIT_FAILURE;
}
static table_entry_t imx8mimage_cmds[] = {
{CMD_BOOT_FROM, "BOOT_FROM", "boot command", },
{CMD_FIT, "FIT", "fit image", },
{CMD_SIGNED_HDMI, "SIGNED_HDMI", "signed hdmi image", },
{CMD_LOADER, "LOADER", "loader image", },
{CMD_SECOND_LOADER, "SECOND_LOADER", "2nd loader image", },
{CMD_DDR_FW, "DDR_FW", "ddr firmware", },
{-1, "", "", },
};
static table_entry_t imx8mimage_ivt_offset[] = {
{0x400, "sd", "sd/emmc",},
{0x400, "emmc_fastboot", "emmc fastboot",},
{0x1000, "fspi", "flexspi", },
{-1, "", "Invalid", },
};
static void parse_cfg_cmd(int32_t cmd, char *token, char *name, int lineno)
{
switch (cmd) {
case CMD_BOOT_FROM:
ivt_offset = get_table_entry_id(imx8mimage_ivt_offset,
"imx8mimage ivt offset",
token);
if (!strncmp(token, "sd", 2))
rom_image_offset = 0x8000;
break;
case CMD_LOADER:
ap_img = token;
break;
case CMD_SECOND_LOADER:
sld_img = token;
break;
case CMD_SIGNED_HDMI:
signed_hdmi = token;
case CMD_FIT:
using_fit = 1;
break;
case CMD_DDR_FW:
/* Do nothing */
break;
}
}
static void parse_cfg_fld(int32_t *cmd, char *token,
char *name, int lineno, int fld)
{
switch (fld) {
case CFG_COMMAND:
*cmd = get_table_entry_id(imx8mimage_cmds,
"imx8mimage commands", token);
if (*cmd < 0) {
fprintf(stderr, "Error: %s[%d] - Invalid command" "(%s)\n",
name, lineno, token);
exit(EXIT_FAILURE);
}
break;
case CFG_REG_SIZE:
parse_cfg_cmd(*cmd, token, name, lineno);
break;
case CFG_REG_ADDRESS:
switch (*cmd) {
case CMD_LOADER:
ap_start_addr = get_cfg_value(token, name, lineno);
break;
case CMD_SECOND_LOADER:
sld_start_addr = get_cfg_value(token, name, lineno);
break;
}
break;
case CFG_REG_VALUE:
switch (*cmd) {
case CMD_SECOND_LOADER:
sld_src_off = get_cfg_value(token, name, lineno);
break;
}
default:
break;
}
}
static uint32_t parse_cfg_file(char *name)
{
FILE *fd = NULL;
char *line = NULL;
char *token, *saveptr1, *saveptr2;
int lineno = 0;
int fld;
size_t len;
int32_t cmd;
fd = fopen(name, "r");
if (fd == 0) {
fprintf(stderr, "Error: %s - Can't open cfg file\n", name);
exit(EXIT_FAILURE);
}
/*
* Very simple parsing, line starting with # are comments
* and are dropped
*/
while ((getline(&line, &len, fd)) > 0) {
lineno++;
token = strtok_r(line, "\r\n", &saveptr1);
if (!token)
continue;
/* Check inside the single line */
for (fld = CFG_COMMAND, cmd = CFG_INVALID,
line = token; ; line = NULL, fld++) {
token = strtok_r(line, " \t", &saveptr2);
if (!token)
break;
/* Drop all text starting with '#' as comments */
if (token[0] == '#')
break;
parse_cfg_fld(&cmd, token, name, lineno, fld);
}
}
return 0;
}
static void fill_zero(int ifd, int size, int offset)
{
int fill_size;
uint8_t zeros[4096];
int ret;
memset(zeros, 0, sizeof(zeros));
ret = lseek(ifd, offset, SEEK_SET);
if (ret < 0) {
fprintf(stderr, "%s seek: %s\n", __func__, strerror(errno));
exit(EXIT_FAILURE);
}
while (size) {
if (size > 4096)
fill_size = 4096;
else
fill_size = size;
if (write(ifd, (char *)&zeros, fill_size) != fill_size) {
fprintf(stderr, "Write error: %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
size -= fill_size;
};
}
static void copy_file(int ifd, const char *datafile, int pad, int offset,
int datafile_offset)
{
int dfd;
struct stat sbuf;
unsigned char *ptr;
int tail;
int zero = 0;
uint8_t zeros[4096];
int size, ret;
memset(zeros, 0, sizeof(zeros));
dfd = open(datafile, O_RDONLY | O_BINARY);
if (dfd < 0) {
fprintf(stderr, "Can't open %s: %s\n",
datafile, strerror(errno));
exit(EXIT_FAILURE);
}
if (fstat(dfd, &sbuf) < 0) {
fprintf(stderr, "Can't stat %s: %s\n",
datafile, strerror(errno));
exit(EXIT_FAILURE);
}
ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
if (ptr == MAP_FAILED) {
fprintf(stderr, "Can't read %s: %s\n",
datafile, strerror(errno));
exit(EXIT_FAILURE);
}
size = sbuf.st_size - datafile_offset;
ret = lseek(ifd, offset, SEEK_SET);
if (ret < 0) {
fprintf(stderr, "lseek ifd fail\n");
exit(EXIT_FAILURE);
}
if (write(ifd, ptr + datafile_offset, size) != size) {
fprintf(stderr, "Write error %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
tail = size % 4;
pad = pad - size;
if (pad == 1 && tail != 0) {
if (write(ifd, (char *)&zero, 4 - tail) != 4 - tail) {
fprintf(stderr, "Write error on %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
} else if (pad > 1) {
while (pad > 0) {
int todo = sizeof(zeros);
if (todo > pad)
todo = pad;
if (write(ifd, (char *)&zeros, todo) != todo) {
fprintf(stderr, "Write error: %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
pad -= todo;
}
}
munmap((void *)ptr, sbuf.st_size);
close(dfd);
}
/* Return this IVT offset in the final output file */
static int generate_ivt_for_fit(int fd, int fit_offset, uint32_t ep,
uint32_t *fit_load_addr)
{
image_header_t image_header;
int ret;
uint32_t fit_size, load_addr;
int align_len = 64 - 1; /* 64 is cacheline size */
ret = lseek(fd, fit_offset, SEEK_SET);
if (ret < 0) {
fprintf(stderr, "lseek fd fail for fit\n");
exit(EXIT_FAILURE);
}
if (read(fd, (char *)&image_header, sizeof(image_header_t)) !=
sizeof(image_header_t)) {
fprintf(stderr, "generate_ivt_for_fit read failed: %s\n",
strerror(errno));
exit(EXIT_FAILURE);
}
if (be32_to_cpu(image_header.ih_magic) != FDT_MAGIC) {
fprintf(stderr, "%s error: not a FIT file\n", __func__);
exit(EXIT_FAILURE);
}
fit_size = fdt_totalsize(&image_header);
fit_size = (fit_size + 3) & ~3;
fit_size = ALIGN(fit_size, ALIGN_SIZE);
ret = lseek(fd, fit_offset + fit_size, SEEK_SET);
if (ret < 0) {
fprintf(stderr, "lseek fd fail for fit\n");
exit(EXIT_FAILURE);
}
/*
* ep is the u-boot entry. SPL loads the FIT before the u-boot
* address. 0x2000 is for CSF_SIZE
*/
load_addr = (ep - (fit_size + CSF_SIZE) - 512 - align_len) &
~align_len;
flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 },
load_addr, 0, 0, 0,
(load_addr + fit_size),
(load_addr + fit_size + 0x20),
0 };
if (write(fd, &ivt_header, sizeof(flash_header_v2_t)) !=
sizeof(flash_header_v2_t)) {
fprintf(stderr, "IVT writing error on fit image\n");
exit(EXIT_FAILURE);
}
*fit_load_addr = load_addr;
return fit_offset + fit_size;
}
static void dump_header_v2(imx_header_v3_t *imx_header, int index)
{
const char *ivt_name[2] = {"HDMI FW", "LOADER IMAGE"};
fprintf(stdout, "========= IVT HEADER [%s] =========\n",
ivt_name[index]);
fprintf(stdout, "header.tag: \t\t0x%x\n",
imx_header[index].fhdr.header.tag);
fprintf(stdout, "header.length: \t\t0x%x\n",
imx_header[index].fhdr.header.length);
fprintf(stdout, "header.version: \t0x%x\n",
imx_header[index].fhdr.header.version);
fprintf(stdout, "entry: \t\t\t0x%x\n",
imx_header[index].fhdr.entry);
fprintf(stdout, "reserved1: \t\t0x%x\n",
imx_header[index].fhdr.reserved1);
fprintf(stdout, "dcd_ptr: \t\t0x%x\n",
imx_header[index].fhdr.dcd_ptr);
fprintf(stdout, "boot_data_ptr: \t\t0x%x\n",
imx_header[index].fhdr.boot_data_ptr);
fprintf(stdout, "self: \t\t\t0x%x\n",
imx_header[index].fhdr.self);
fprintf(stdout, "csf: \t\t\t0x%x\n",
imx_header[index].fhdr.csf);
fprintf(stdout, "reserved2: \t\t0x%x\n",
imx_header[index].fhdr.reserved2);
fprintf(stdout, "boot_data.start: \t0x%x\n",
imx_header[index].boot_data.start);
fprintf(stdout, "boot_data.size: \t0x%x\n",
imx_header[index].boot_data.size);
fprintf(stdout, "boot_data.plugin: \t0x%x\n",
imx_header[index].boot_data.plugin);
}
void build_image(int ofd)
{
int file_off, header_hdmi_off = 0, header_image_off;
int hdmi_fd, ap_fd, sld_fd;
uint32_t sld_load_addr = 0;
uint32_t csf_off, sld_csf_off = 0;
int ret;
struct stat sbuf;
if (!ap_img) {
fprintf(stderr, "No LOADER image specificed\n");
exit(EXIT_FAILURE);
}
file_off = 0;
if (signed_hdmi) {
header_hdmi_off = file_off + ivt_offset;
hdmi_fd = open(signed_hdmi, O_RDONLY | O_BINARY);
if (hdmi_fd < 0) {
fprintf(stderr, "%s: Can't open: %s\n",
signed_hdmi, strerror(errno));
exit(EXIT_FAILURE);
}
if (fstat(hdmi_fd, &sbuf) < 0) {
fprintf(stderr, "%s: Can't stat: %s\n",
signed_hdmi, strerror(errno));
exit(EXIT_FAILURE);
}
close(hdmi_fd);
/*
* Aligned to 104KB = 92KB FW image + 0x8000
* (IVT and alignment) + 0x4000 (second IVT + CSF)
*/
file_off += ALIGN(sbuf.st_size,
HDMI_FW_SIZE + 0x2000 + 0x1000);
}
header_image_off = file_off + ivt_offset;
ap_fd = open(ap_img, O_RDONLY | O_BINARY);
if (ap_fd < 0) {
fprintf(stderr, "%s: Can't open: %s\n",
ap_img, strerror(errno));
exit(EXIT_FAILURE);
}
if (fstat(ap_fd, &sbuf) < 0) {
fprintf(stderr, "%s: Can't stat: %s\n",
ap_img, strerror(errno));
exit(EXIT_FAILURE);
}
close(ap_fd);
imx_header[IMAGE_IVT_ID].fhdr.header.tag = IVT_HEADER_TAG; /* 0xD1 */
imx_header[IMAGE_IVT_ID].fhdr.header.length =
cpu_to_be16(sizeof(flash_header_v2_t));
imx_header[IMAGE_IVT_ID].fhdr.header.version = IVT_VERSION_V3; /* 0x41 */
imx_header[IMAGE_IVT_ID].fhdr.entry = ap_start_addr;
imx_header[IMAGE_IVT_ID].fhdr.self = ap_start_addr -
sizeof(imx_header_v3_t);
imx_header[IMAGE_IVT_ID].fhdr.dcd_ptr = 0;
imx_header[IMAGE_IVT_ID].fhdr.boot_data_ptr =
imx_header[IMAGE_IVT_ID].fhdr.self +
offsetof(imx_header_v3_t, boot_data);
imx_header[IMAGE_IVT_ID].boot_data.start =
imx_header[IMAGE_IVT_ID].fhdr.self - ivt_offset;
imx_header[IMAGE_IVT_ID].boot_data.size =
ALIGN(sbuf.st_size + sizeof(imx_header_v3_t) + ivt_offset,
sector_size);
image_off = header_image_off + sizeof(imx_header_v3_t);
file_off += imx_header[IMAGE_IVT_ID].boot_data.size;
imx_header[IMAGE_IVT_ID].boot_data.plugin = 0;
imx_header[IMAGE_IVT_ID].fhdr.csf =
imx_header[IMAGE_IVT_ID].boot_data.start +
imx_header[IMAGE_IVT_ID].boot_data.size;
imx_header[IMAGE_IVT_ID].boot_data.size += CSF_SIZE; /* 8K region dummy CSF */
csf_off = file_off;
file_off += CSF_SIZE;
/* Second boot loader image */
if (sld_img) {
if (!using_fit) {
fprintf(stderr, "Not support no fit\n");
exit(EXIT_FAILURE);
} else {
sld_header_off = sld_src_off - rom_image_offset;
/*
* Record the second bootloader relative offset in
* image's IVT reserved1
*/
imx_header[IMAGE_IVT_ID].fhdr.reserved1 =
sld_header_off - header_image_off;
sld_fd = open(sld_img, O_RDONLY | O_BINARY);
if (sld_fd < 0) {
fprintf(stderr, "%s: Can't open: %s\n",
sld_img, strerror(errno));
exit(EXIT_FAILURE);
}
if (fstat(sld_fd, &sbuf) < 0) {
fprintf(stderr, "%s: Can't stat: %s\n",
sld_img, strerror(errno));
exit(EXIT_FAILURE);
}
close(sld_fd);
file_off = sld_header_off;
file_off += sbuf.st_size + sizeof(image_header_t);
}
}
if (signed_hdmi) {
header_hdmi_off -= ivt_offset;
ret = lseek(ofd, header_hdmi_off, SEEK_SET);
if (ret < 0) {
fprintf(stderr, "lseek ofd fail for hdmi\n");
exit(EXIT_FAILURE);
}
/* The signed HDMI FW has 0x400 IVT offset, need remove it */
copy_file(ofd, signed_hdmi, 0, header_hdmi_off, 0x400);
}
/* Main Image */
header_image_off -= ivt_offset;
image_off -= ivt_offset;
ret = lseek(ofd, header_image_off, SEEK_SET);
if (ret < 0) {
fprintf(stderr, "lseek ofd fail\n");
exit(EXIT_FAILURE);
}
/* Write image header */
if (write(ofd, &imx_header[IMAGE_IVT_ID], sizeof(imx_header_v3_t)) !=
sizeof(imx_header_v3_t)) {
fprintf(stderr, "error writing image hdr\n");
exit(1);
}
copy_file(ofd, ap_img, 0, image_off, 0);
csf_off -= ivt_offset;
fill_zero(ofd, CSF_SIZE, csf_off);
if (sld_img) {
sld_header_off -= ivt_offset;
ret = lseek(ofd, sld_header_off, SEEK_SET);
if (ret < 0) {
fprintf(stderr, "lseek ofd fail for sld_img\n");
exit(EXIT_FAILURE);
}
/* Write image header */
if (!using_fit) {
/* TODO */
} else {
copy_file(ofd, sld_img, 0, sld_header_off, 0);
sld_csf_off =
generate_ivt_for_fit(ofd, sld_header_off,
sld_start_addr,
&sld_load_addr) + 0x20;
}
}
if (!signed_hdmi)
dump_header_v2(imx_header, 0);
dump_header_v2(imx_header, 1);
fprintf(stdout, "========= OFFSET dump =========");
if (signed_hdmi) {
fprintf(stdout, "\nSIGNED HDMI FW:\n");
fprintf(stdout, " header_hdmi_off \t0x%x\n",
header_hdmi_off);
}
fprintf(stdout, "\nLoader IMAGE:\n");
fprintf(stdout, " header_image_off \t0x%x\n image_off \t\t0x%x\n csf_off \t\t0x%x\n",
header_image_off, image_off, csf_off);
fprintf(stdout, " spl hab block: \t0x%x 0x%x 0x%x\n",
imx_header[IMAGE_IVT_ID].fhdr.self, header_image_off,
csf_off - header_image_off);
fprintf(stdout, "\nSecond Loader IMAGE:\n");
fprintf(stdout, " sld_header_off \t0x%x\n",
sld_header_off);
fprintf(stdout, " sld_csf_off \t\t0x%x\n",
sld_csf_off);
fprintf(stdout, " sld hab block: \t0x%x 0x%x 0x%x\n",
sld_load_addr, sld_header_off, sld_csf_off - sld_header_off);
}
int imx8mimage_copy_image(int outfd, struct image_tool_params *mparams)
{
/*
* SECO FW is a container image, this is to calculate the
* 2nd container offset.
*/
fprintf(stdout, "parsing %s\n", mparams->imagename);
parse_cfg_file(mparams->imagename);
build_image(outfd);
return 0;
}
/*
* imx8mimage parameters
*/
U_BOOT_IMAGE_TYPE(
imx8mimage,
"NXP i.MX8M Boot Image support",
0,
NULL,
imx8mimage_check_params,
NULL,
imx8mimage_print_header,
imx8mimage_set_header,
NULL,
imx8mimage_check_image_types,
NULL,
NULL
);
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