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![Patrick Delaunay](/assets/img/avatar_default.png)
Dynamically adapt the MTD partitions in NOR/NAND/SPI-NAND when stm32prog command detects in the parsed flash layout files: - a fsbl partition in NOR. - a tee partition in NOR/NAND/SPI-NAND Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
168 lines
3.6 KiB
C
168 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
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*/
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#include <common.h>
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#include <dfu.h>
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#include <dm.h>
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#include <env.h>
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#include <env_internal.h>
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#include <mtd.h>
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#include <mtd_node.h>
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#include <tee.h>
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#include <asm/arch/stm32prog.h>
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#include <asm/arch/sys_proto.h>
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#define MTDPARTS_LEN 256
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#define MTDIDS_LEN 128
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/*
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* Get a global data pointer
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*/
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DECLARE_GLOBAL_DATA_PTR;
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/**
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* update the variables "mtdids" and "mtdparts" with boot, tee and user strings
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*/
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static void board_set_mtdparts(const char *dev,
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char *mtdids,
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char *mtdparts,
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const char *boot,
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const char *tee,
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const char *user)
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{
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/* mtdids: "<dev>=<dev>, ...." */
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if (mtdids[0] != '\0')
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strcat(mtdids, ",");
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strcat(mtdids, dev);
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strcat(mtdids, "=");
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strcat(mtdids, dev);
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/* mtdparts: "mtdparts=<dev>:<mtdparts_<dev>>;..." */
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if (mtdparts[0] != '\0')
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strncat(mtdparts, ";", MTDPARTS_LEN);
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else
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strcat(mtdparts, "mtdparts=");
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strncat(mtdparts, dev, MTDPARTS_LEN);
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strncat(mtdparts, ":", MTDPARTS_LEN);
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if (boot) {
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strncat(mtdparts, boot, MTDPARTS_LEN);
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strncat(mtdparts, ",", MTDPARTS_LEN);
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}
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if (tee) {
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strncat(mtdparts, tee, MTDPARTS_LEN);
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strncat(mtdparts, ",", MTDPARTS_LEN);
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}
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strncat(mtdparts, user, MTDPARTS_LEN);
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}
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void board_mtdparts_default(const char **mtdids, const char **mtdparts)
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{
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struct mtd_info *mtd;
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struct udevice *dev;
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static char parts[3 * MTDPARTS_LEN + 1];
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static char ids[MTDIDS_LEN + 1];
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static bool mtd_initialized;
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bool tee, nor, nand, spinand, serial;
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if (mtd_initialized) {
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*mtdids = ids;
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*mtdparts = parts;
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return;
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}
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tee = false;
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nor = false;
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nand = false;
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spinand = false;
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serial = false;
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switch (get_bootmode() & TAMP_BOOT_DEVICE_MASK) {
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case BOOT_SERIAL_UART:
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case BOOT_SERIAL_USB:
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serial = true;
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if (CONFIG_IS_ENABLED(CMD_STM32PROG)) {
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tee = stm32prog_get_tee_partitions();
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nor = stm32prog_get_fsbl_nor();
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}
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nand = true;
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spinand = true;
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break;
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case BOOT_FLASH_NAND:
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nand = true;
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break;
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case BOOT_FLASH_SPINAND:
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spinand = true;
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break;
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case BOOT_FLASH_NOR:
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nor = true;
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break;
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default:
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break;
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}
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if (!serial && CONFIG_IS_ENABLED(OPTEE) &&
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tee_find_device(NULL, NULL, NULL, NULL))
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tee = true;
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memset(parts, 0, sizeof(parts));
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memset(ids, 0, sizeof(ids));
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/* probe all MTD devices */
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for (uclass_first_device(UCLASS_MTD, &dev);
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dev;
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uclass_next_device(&dev)) {
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pr_debug("mtd device = %s\n", dev->name);
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}
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if (nor || nand) {
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mtd = get_mtd_device_nm("nand0");
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if (!IS_ERR_OR_NULL(mtd)) {
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const char *mtd_boot = CONFIG_MTDPARTS_NAND0_BOOT;
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const char *mtd_tee = CONFIG_MTDPARTS_NAND0_TEE;
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board_set_mtdparts("nand0", ids, parts,
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!nor ? mtd_boot : NULL,
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!nor && tee ? mtd_tee : NULL,
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"-(UBI)");
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put_mtd_device(mtd);
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}
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}
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if (nor || spinand) {
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mtd = get_mtd_device_nm("spi-nand0");
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if (!IS_ERR_OR_NULL(mtd)) {
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const char *mtd_boot = CONFIG_MTDPARTS_SPINAND0_BOOT;
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const char *mtd_tee = CONFIG_MTDPARTS_SPINAND0_TEE;
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board_set_mtdparts("spi-nand0", ids, parts,
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!nor ? mtd_boot : NULL,
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!nor && tee ? mtd_tee : NULL,
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"-(UBI)");
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put_mtd_device(mtd);
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}
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}
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if (nor) {
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if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev)) {
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const char *mtd_boot = CONFIG_MTDPARTS_NOR0_BOOT;
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const char *mtd_tee = CONFIG_MTDPARTS_NOR0_TEE;
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board_set_mtdparts("nor0", ids, parts,
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mtd_boot,
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tee ? mtd_tee : NULL,
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"-(nor_user)");
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}
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}
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mtd_initialized = true;
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*mtdids = ids;
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*mtdparts = parts;
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debug("%s:mtdids=%s & mtdparts=%s\n", __func__, ids, parts);
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}
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