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stm32mp: stm32prog: add support of STM32IMAGE version 2

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Add support of new header for the STM32IMAGE version V2
in command stm32prog command for STM32MP13x family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2022-03-28 19:25:29 +02:00 committed by Patrice Chotard
parent e82ab4c890
commit 49d0ecb123
3 changed files with 120 additions and 54 deletions
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8
arch/arm/mach-stm32mp/cmd_stm32prog/cmd_stm32prog.c
View File

@ -73,15 +73,15 @@ static int do_stm32prog(struct cmd_tbl *cmdtp, int flag, int argc,
/* check STM32IMAGE presence */
if (size == 0) {
stm32prog_header_check((struct raw_header_s *)addr, &header);
stm32prog_header_check(addr, &header);
if (header.type == HEADER_STM32IMAGE) {
size = header.image_length + BL_HEADER_SIZE;
size = header.image_length + header.length;
#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
/* uImage detected in STM32IMAGE, execute the script */
if (IMAGE_FORMAT_LEGACY ==
genimg_get_format((void *)(addr + BL_HEADER_SIZE)))
return image_source_script(addr + BL_HEADER_SIZE, "script@1");
genimg_get_format((void *)(addr + header.length)))
return image_source_script(addr + header.length, "script@1");
#endif
}
}

131
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
View File

@ -205,52 +205,98 @@ static bool stm32prog_is_fip_header(struct fip_toc_header *header)
return (header->name == FIP_TOC_HEADER_NAME) && header->serial_number;
}
void stm32prog_header_check(struct raw_header_s *raw_header,
struct image_header_s *header)
static bool stm32prog_is_stm32_header_v1(struct stm32_header_v1 *header)
{
unsigned int i;
if (header->magic_number !=
(('S' << 0) | ('T' << 8) | ('M' << 16) | (0x32 << 24))) {
log_debug("%s:invalid magic number : 0x%x\n",
__func__, header->magic_number);
return false;
}
if (header->header_version != 0x00010000) {
log_debug("%s:invalid header version : 0x%x\n",
__func__, header->header_version);
return false;
}
if (header->reserved1 || header->reserved2) {
log_debug("%s:invalid reserved field\n", __func__);
return false;
}
for (i = 0; i < sizeof(header->padding); i++) {
if (header->padding[i] != 0) {
log_debug("%s:invalid padding field\n", __func__);
return false;
}
}
return true;
}
static bool stm32prog_is_stm32_header_v2(struct stm32_header_v2 *header)
{
unsigned int i;
if (header->magic_number !=
(('S' << 0) | ('T' << 8) | ('M' << 16) | (0x32 << 24))) {
log_debug("%s:invalid magic number : 0x%x\n",
__func__, header->magic_number);
return false;
}
if (header->header_version != 0x00020000) {
log_debug("%s:invalid header version : 0x%x\n",
__func__, header->header_version);
return false;
}
if (header->reserved1 || header->reserved2)
return false;
for (i = 0; i < sizeof(header->padding); i++) {
if (header->padding[i] != 0) {
log_debug("%s:invalid padding field\n", __func__);
return false;
}
}
return true;
}
void stm32prog_header_check(uintptr_t raw_header, struct image_header_s *header)
{
struct stm32_header_v1 *v1_header = (struct stm32_header_v1 *)raw_header;
struct stm32_header_v2 *v2_header = (struct stm32_header_v2 *)raw_header;
if (!raw_header || !header) {
log_debug("%s:no header data\n", __func__);
return;
}
if (stm32prog_is_fip_header((struct fip_toc_header *)raw_header)) {
header->type = HEADER_FIP;
header->length = 0;
return;
}
if (stm32prog_is_stm32_header_v1(v1_header)) {
header->type = HEADER_STM32IMAGE;
header->image_checksum = le32_to_cpu(v1_header->image_checksum);
header->image_length = le32_to_cpu(v1_header->image_length);
header->length = sizeof(struct stm32_header_v1);
return;
}
if (stm32prog_is_stm32_header_v2(v2_header)) {
header->type = HEADER_STM32IMAGE_V2;
header->image_checksum = le32_to_cpu(v2_header->image_checksum);
header->image_length = le32_to_cpu(v2_header->image_length);
header->length = sizeof(struct stm32_header_v1) +
v2_header->extension_headers_length;
return;
}
header->type = HEADER_NONE;
header->image_checksum = 0x0;
header->image_length = 0x0;
if (stm32prog_is_fip_header((struct fip_toc_header *)raw_header)) {
header->type = HEADER_FIP;
return;
}
if (raw_header->magic_number !=
(('S' << 0) | ('T' << 8) | ('M' << 16) | (0x32 << 24))) {
log_debug("%s:invalid magic number : 0x%x\n",
__func__, raw_header->magic_number);
return;
}
/* only header v1.0 supported */
if (raw_header->header_version != 0x00010000) {
log_debug("%s:invalid header version : 0x%x\n",
__func__, raw_header->header_version);
return;
}
if (raw_header->reserved1 != 0x0 || raw_header->reserved2) {
log_debug("%s:invalid reserved field\n", __func__);
return;
}
for (i = 0; i < (sizeof(raw_header->padding) / 4); i++) {
if (raw_header->padding[i] != 0) {
log_debug("%s:invalid padding field\n", __func__);
return;
}
}
header->type = HEADER_STM32IMAGE;
header->image_checksum = le32_to_cpu(raw_header->image_checksum);
header->image_length = le32_to_cpu(raw_header->image_length);
return;
}
static u32 stm32prog_header_checksum(u32 addr, struct image_header_s *header)
@ -480,11 +526,11 @@ static int parse_flash_layout(struct stm32prog_data *data,
data->part_nb = 0;
/* check if STM32image is detected */
stm32prog_header_check((struct raw_header_s *)addr, &header);
stm32prog_header_check(addr, &header);
if (header.type == HEADER_STM32IMAGE) {
u32 checksum;
addr = addr + BL_HEADER_SIZE;
addr = addr + header.length;
size = header.image_length;
checksum = stm32prog_header_checksum(addr, &header);
@ -1560,7 +1606,7 @@ static int stm32prog_copy_fsbl(struct stm32prog_part_t *part)
int ret, i;
void *fsbl;
struct image_header_s header;
struct raw_header_s raw_header;
struct stm32_header_v2 raw_header; /* V2 size > v1 size */
struct dfu_entity *dfu;
long size, offset;
@ -1572,17 +1618,18 @@ static int stm32prog_copy_fsbl(struct stm32prog_part_t *part)
/* read header */
dfu_transaction_cleanup(dfu);
size = BL_HEADER_SIZE;
size = sizeof(raw_header);
ret = dfu->read_medium(dfu, 0, (void *)&raw_header, &size);
if (ret)
return ret;
stm32prog_header_check(&raw_header, &header);
if (header.type != HEADER_STM32IMAGE)
stm32prog_header_check((ulong)&raw_header, &header);
if (header.type != HEADER_STM32IMAGE &&
header.type != HEADER_STM32IMAGE_V2)
return -ENOENT;
/* read header + payload */
size = header.image_length + BL_HEADER_SIZE;
size = header.image_length + header.length;
size = round_up(size, part->dev->mtd->erasesize);
fsbl = calloc(1, size);
if (!fsbl)

35
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h
View File

@ -42,6 +42,7 @@ enum stm32prog_link_t {
enum stm32prog_header_t {
HEADER_NONE,
HEADER_STM32IMAGE,
HEADER_STM32IMAGE_V2,
HEADER_FIP,
};
@ -49,11 +50,12 @@ struct image_header_s {
enum stm32prog_header_t type;
u32 image_checksum;
u32 image_length;
u32 length;
};
struct raw_header_s {
struct stm32_header_v1 {
u32 magic_number;
u32 image_signature[64 / 4];
u8 image_signature[64];
u32 image_checksum;
u32 header_version;
u32 image_length;
@ -64,12 +66,30 @@ struct raw_header_s {
u32 version_number;
u32 option_flags;
u32 ecdsa_algorithm;
u32 ecdsa_public_key[64 / 4];
u32 padding[83 / 4];
u32 binary_type;
u8 ecdsa_public_key[64];
u8 padding[83];
u8 binary_type;
};
#define BL_HEADER_SIZE sizeof(struct raw_header_s)
struct stm32_header_v2 {
u32 magic_number;
u8 image_signature[64];
u32 image_checksum;
u32 header_version;
u32 image_length;
u32 image_entry_point;
u32 reserved1;
u32 load_address;
u32 reserved2;
u32 version_number;
u32 extension_flags;
u32 extension_headers_length;
u32 binary_type;
u8 padding[16];
u32 extension_header_type;
u32 extension_header_length;
u8 extension_padding[376];
};
/* partition type in flashlayout file */
enum stm32prog_part_type {
@ -171,8 +191,7 @@ int stm32prog_pmic_read(struct stm32prog_data *data, u32 offset,
int stm32prog_pmic_start(struct stm32prog_data *data);
/* generic part*/
void stm32prog_header_check(struct raw_header_s *raw_header,
struct image_header_s *header);
void stm32prog_header_check(uintptr_t raw_header, struct image_header_s *header);
int stm32prog_dfu_init(struct stm32prog_data *data);
void stm32prog_next_phase(struct stm32prog_data *data);
void stm32prog_do_reset(struct stm32prog_data *data);