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![Simon Glass](/assets/img/avatar_default.png)
In the spirit of using the same base name for all of these related macros, rename this to have the operation at the end. This is not widely used so the impact is fairly small. Signed-off-by: Simon Glass <sjg@chromium.org>
207 lines
5.0 KiB
C
207 lines
5.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright (C) 2019, STMicroelectronics - All Rights Reserved
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*
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* the st command stboard supports the STMicroelectronics board identification
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* saved in OTP 59.
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*
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* The ST product codification have several element
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* - "Commercial Product Name" (CPN): type of product board (DKX, EVX)
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* associated to the board ID "MBxxxx"
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* - "Finished Good" or "Finish Good" (FG):
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* effective content of the product without chip STM32MP1xx (LCD, Wifi,…)
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* - BOM: cost variant for same FG (for example, several provider of the same
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* component)
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*
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* For example
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* - commercial product = STM32MP157C-EV1 for board MB1263
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* - Finished Good = EVA32MP157A1$AU1
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*
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* Both information are written on board and these information are also saved
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* in OTP59, with:
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* bit [31:16] (hex) => Board id, MBxxxx
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* bit [15:12] (dec) => Variant CPN (1....15)
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* bit [11:8] (dec) => Revision board (index with A = 1, Z = 26)
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* bit [7:4] (dec) => Variant FG : finished good index
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* bit [3:0] (dec) => BOM (01, .... 255)
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*
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* and displayed with the format:
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* Board: MB<Board> Var<VarCPN>.<VarFG> Rev.<Revision>-<BOM>
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*/
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#ifndef CONFIG_SPL_BUILD
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#include <common.h>
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#include <command.h>
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#include <console.h>
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#include <misc.h>
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#include <dm/device.h>
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#include <dm/uclass.h>
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static bool check_stboard(u16 board)
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{
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unsigned int i;
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/* list of supported ST boards */
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const u16 st_board_id[] = {
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0x1272,
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0x1263,
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0x1264,
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0x1298,
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0x1341,
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0x1497,
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};
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for (i = 0; i < ARRAY_SIZE(st_board_id); i++)
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if (board == st_board_id[i])
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return true;
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return false;
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}
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static void display_stboard(u32 otp)
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{
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/* display board indentification with OPT coding */
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printf("Board: MB%04x Var%d.%d Rev.%c-%02d\n",
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otp >> 16,
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(otp >> 12) & 0xF,
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(otp >> 4) & 0xF,
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((otp >> 8) & 0xF) - 1 + 'A',
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otp & 0xF);
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}
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static int do_stboard(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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int ret;
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u32 otp, lock;
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u8 revision;
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unsigned long board, var_cpn, var_fg, bom;
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struct udevice *dev;
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int confirmed = argc == 7 && !strcmp(argv[1], "-y");
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argc -= 1 + confirmed;
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argv += 1 + confirmed;
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if (argc != 0 && argc != 5)
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return CMD_RET_USAGE;
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ret = uclass_get_device_by_driver(UCLASS_MISC,
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DM_DRIVER_GET(stm32mp_bsec),
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&dev);
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ret = misc_read(dev, STM32_BSEC_OTP(BSEC_OTP_BOARD),
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&otp, sizeof(otp));
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if (ret < 0) {
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puts("OTP read error");
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return CMD_RET_FAILURE;
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}
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ret = misc_read(dev, STM32_BSEC_LOCK(BSEC_OTP_BOARD),
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&lock, sizeof(lock));
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if (ret < 0) {
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puts("LOCK read error");
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return CMD_RET_FAILURE;
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}
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if (argc == 0) {
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if (!otp)
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puts("Board : OTP board FREE\n");
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else
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display_stboard(otp);
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printf(" OTP %d %s locked !\n", BSEC_OTP_BOARD,
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lock == 1 ? "" : "NOT");
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return CMD_RET_SUCCESS;
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}
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if (otp) {
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display_stboard(otp);
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printf("ERROR: OTP board not FREE\n");
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return CMD_RET_FAILURE;
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}
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if (strict_strtoul(argv[0], 16, &board) < 0 ||
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board == 0 || board > 0xFFFF) {
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printf("argument %d invalid: %s\n", 1, argv[0]);
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return CMD_RET_USAGE;
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}
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if (strict_strtoul(argv[1], 10, &var_cpn) < 0 ||
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var_cpn == 0 || var_cpn > 15) {
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printf("argument %d invalid: %s\n", 2, argv[1]);
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return CMD_RET_USAGE;
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}
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revision = argv[2][0] - 'A' + 1;
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if (strlen(argv[2]) > 1 || revision == 0 || revision > 15) {
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printf("argument %d invalid: %s\n", 3, argv[2]);
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return CMD_RET_USAGE;
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}
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if (strict_strtoul(argv[3], 10, &var_fg) < 0 ||
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var_fg > 15) {
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printf("argument %d invalid: %s\n", 4, argv[3]);
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return CMD_RET_USAGE;
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}
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if (strict_strtoul(argv[4], 10, &bom) < 0 ||
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bom == 0 || bom > 15) {
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printf("argument %d invalid: %s\n", 4, argv[3]);
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return CMD_RET_USAGE;
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}
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/* st board indentification value */
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otp = (board << 16) | (var_cpn << 12) | (revision << 8) |
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(var_fg << 4) | bom;
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display_stboard(otp);
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printf("=> OTP[%d] = %08X\n", BSEC_OTP_BOARD, otp);
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if (!check_stboard((u16)board)) {
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printf("Unknown board MB%04x\n", (u16)board);
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return CMD_RET_FAILURE;
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}
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if (!confirmed) {
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printf("Warning: Programming BOARD in OTP is irreversible!\n");
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printf("Really perform this OTP programming? <y/N>\n");
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if (!confirm_yesno()) {
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puts("BOARD programming aborted\n");
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return CMD_RET_FAILURE;
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}
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}
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ret = misc_write(dev, STM32_BSEC_OTP(BSEC_OTP_BOARD),
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&otp, sizeof(otp));
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if (ret < 0) {
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puts("BOARD programming error\n");
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return CMD_RET_FAILURE;
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}
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/* write persistent lock */
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otp = 1;
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ret = misc_write(dev, STM32_BSEC_LOCK(BSEC_OTP_BOARD),
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&otp, sizeof(otp));
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if (ret < 0) {
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puts("BOARD lock error\n");
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return CMD_RET_FAILURE;
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}
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puts("BOARD programming done\n");
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(stboard, 7, 0, do_stboard,
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"read/write board reference in OTP",
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"\n"
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" Print current board information\n"
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"stboard [-y] <Board> <VarCPN> <Revision> <VarFG> <BOM>\n"
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" Write board information\n"
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" - Board: xxxx, example 1264 for MB1264\n"
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" - VarCPN: 1...15\n"
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" - Revision: A...O\n"
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" - VarFG: 0...15\n"
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" - BOM: 1...15\n");
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#endif
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