This patch removes the header check for UART download; the check of checksum is not mandatory with even parity and chuck checksum for each 256 received bytes and it is only done for STM32 image (FSBL = TF-A BL2), not for FIT image.
This patch solve issue of duplicated 0x100 byte written with FIP header.
Fixes: 4fb7b3e10891 ("stm32mp: stm32prog: add FIP header support") Signed-off-by: Patrick Delaunay patrick.delaunay@foss.st.com ---
.../mach-stm32mp/cmd_stm32prog/stm32prog.c | 14 +- .../mach-stm32mp/cmd_stm32prog/stm32prog.h | 5 - .../cmd_stm32prog/stm32prog_serial.c | 151 ++---------------- 3 files changed, 22 insertions(+), 148 deletions(-)
diff --git a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c index 4c4d8a7a69..84b880261a 100644 --- a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c +++ b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c @@ -369,23 +369,24 @@ static int parse_flash_layout(struct stm32prog_data *data, bool end_of_line, eof; char *p, *start, *last, *col; struct stm32prog_part_t *part; + struct image_header_s header; int part_list_size; int i;
data->part_nb = 0;
/* check if STM32image is detected */ - stm32prog_header_check((struct raw_header_s *)addr, &data->header); - if (data->header.type == HEADER_STM32IMAGE) { + stm32prog_header_check((struct raw_header_s *)addr, &header); + if (header.type == HEADER_STM32IMAGE) { u32 checksum;
addr = addr + BL_HEADER_SIZE; - size = data->header.image_length; + size = header.image_length;
- checksum = stm32prog_header_checksum(addr, &data->header); - if (checksum != data->header.image_checksum) { + checksum = stm32prog_header_checksum(addr, &header); + if (checksum != header.image_checksum) { stm32prog_err("Layout: invalid checksum : 0x%x expected 0x%x", - checksum, data->header.image_checksum); + checksum, header.image_checksum); return -EIO; } } @@ -1727,7 +1728,6 @@ void stm32prog_clean(struct stm32prog_data *data) free(data->part_array); free(data->otp_part); free(data->buffer); - free(data->header_data); }
/* DFU callback: used after serial and direct DFU USB access */ diff --git a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h index 581b10d0ac..ad404879a7 100644 --- a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h +++ b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h @@ -132,14 +132,9 @@ struct stm32prog_data { u32 *otp_part; u8 pmic_part[PMIC_SIZE];
- /* STM32 header information */ - struct raw_header_s *header_data; - struct image_header_s header; - /* SERIAL information */ u32 cursor; u32 packet_number; - u32 checksum; u8 *buffer; /* size = USART_RAM_BUFFER_SIZE*/ int dfu_seq; u8 read_phase; diff --git a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_serial.c b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_serial.c index 2b92e3b149..7eca86c11b 100644 --- a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_serial.c +++ b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_serial.c @@ -292,56 +292,6 @@ static void stm32prog_serial_putc(u8 w_byte) }
/* Helper function ************************************************/ - -static u8 stm32prog_header(struct stm32prog_data *data) -{ - u8 ret; - u8 boot = 0; - struct dfu_entity *dfu_entity; - u64 size = 0; - - dfu_entity = stm32prog_get_entity(data); - if (!dfu_entity) - return -ENODEV; - - printf("\nSTM32 download write %s\n", dfu_entity->name); - - /* force cleanup to avoid issue with previous read */ - dfu_transaction_cleanup(dfu_entity); - - stm32prog_header_check(data->header_data, &data->header); - - /* no stm32 image header : max size is partition size */ - if (data->header.type != HEADER_STM32IMAGE) { - dfu_entity->get_medium_size(dfu_entity, &size); - data->header.image_length = size; - } - - /**** Flash the header if necessary for boot partition */ - if (data->phase < PHASE_FIRST_USER) - boot = 1; - - /* write header if boot partition */ - if (boot) { - if (ret) { - stm32prog_err("invalid header (error %d)", ret); - } else { - ret = stm32prog_write(data, - (u8 *)data->header_data, - BL_HEADER_SIZE); - } - } else { - if (ret) - printf(" partition without checksum\n"); - ret = 0; - } - - free(data->header_data); - data->header_data = NULL; - - return ret; -} - static u8 stm32prog_start(struct stm32prog_data *data, u32 address) { u8 ret = 0; @@ -388,23 +338,6 @@ static u8 stm32prog_start(struct stm32prog_data *data, u32 address) data->dfu_seq = 0;
printf("\n received length = 0x%x\n", data->cursor); - if (data->header.type == HEADER_STM32IMAGE) { - if (data->cursor != - (data->header.image_length + BL_HEADER_SIZE)) { - stm32prog_err("transmission interrupted (length=0x%x expected=0x%x)", - data->cursor, - data->header.image_length + - BL_HEADER_SIZE); - return -EIO; - } - if (data->header.image_checksum != data->checksum) { - stm32prog_err("invalid checksum received (0x%x expected 0x%x)", - data->checksum, - data->header.image_checksum); - return -EIO; - } - printf("\n checksum OK (0x%x)\n", data->checksum); - }
/* update DFU with received flashlayout */ if (data->phase == PHASE_FLASHLAYOUT) @@ -627,14 +560,12 @@ static void download_command(struct stm32prog_data *data) u32 counter = 0x0, codesize = 0x0; u8 *ramaddress = 0; u8 rcv_data = 0x0; - struct image_header_s *image_header = &data->header; u32 cursor = data->cursor; long size = 0; u8 operation; u32 packet_number; u32 result = ACK_BYTE; u8 ret; - unsigned int i; bool error; int rcv;
@@ -668,13 +599,8 @@ static void download_command(struct stm32prog_data *data) if (packet_number == 0) { /* erase: re-initialize the image_header struct */ data->packet_number = 0; - if (data->header_data) - memset(data->header_data, 0, BL_HEADER_SIZE); - else - data->header_data = calloc(1, BL_HEADER_SIZE); cursor = 0; data->cursor = 0; - data->checksum = 0; /*idx = cursor;*/ } else { data->packet_number++; @@ -746,74 +672,27 @@ static void download_command(struct stm32prog_data *data) goto end; }
- /* Update current position in buffer */ - data->cursor += codesize; - - if (operation == PHASE_OTP) { - size = data->cursor - cursor; - /* no header for OTP */ - if (stm32prog_otp_write(data, cursor, - data->buffer, &size)) - result = ABORT_BYTE; - goto end; - } + switch (operation) { + case PHASE_OTP: + size = codesize; + ret = stm32prog_otp_write(data, cursor, data->buffer, &size); + break;
- if (operation == PHASE_PMIC) { - size = data->cursor - cursor; - /* no header for PMIC */ - if (stm32prog_pmic_write(data, cursor, - data->buffer, &size)) - result = ABORT_BYTE; - goto end; - } + case PHASE_PMIC: + size = codesize; + ret = stm32prog_pmic_write(data, cursor, data->buffer, &size); + break;
- if (cursor < BL_HEADER_SIZE) { - /* size = portion of header in this chunck */ - if (data->cursor >= BL_HEADER_SIZE) - size = BL_HEADER_SIZE - cursor; - else - size = data->cursor - cursor; - memcpy((void *)((u32)(data->header_data) + cursor), - data->buffer, size); - cursor += size; - - if (cursor == BL_HEADER_SIZE) { - /* Check and Write the header */ - if (stm32prog_header(data)) { - result = ABORT_BYTE; - goto end; - } - } else { - goto end; - } + default: + ret = stm32prog_write(data, data->buffer, codesize); + break; }
- if (data->header.type == HEADER_STM32IMAGE) { - if (data->cursor <= BL_HEADER_SIZE) - goto end; - /* compute checksum on payload */ - for (i = (unsigned long)size; i < codesize; i++) - data->checksum += data->buffer[i]; - - if (data->cursor > - image_header->image_length + BL_HEADER_SIZE) { - log_err("expected size exceeded\n"); - result = ABORT_BYTE; - goto end; - } - - /* write data (payload) */ - ret = stm32prog_write(data, - &data->buffer[size], - codesize - size); - } else { - /* write all */ - ret = stm32prog_write(data, - data->buffer, - codesize); - } if (ret) result = ABORT_BYTE; + else + /* Update current position in buffer */ + data->cursor += codesize;
end: stm32prog_serial_result(result);