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https://github.com/brain-hackers/u-boot-brain
synced 2024-08-02 16:23:46 +09:00
ec2933e543
Move the stm32mp1 common code set_dfu_alt_info() in common directory, this patch reduce the maintenance effort on this generic part (not board dependent). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
152 lines
2.9 KiB
C
152 lines
2.9 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 <env.h>
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#include <memalign.h>
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#include <misc.h>
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#include <mtd.h>
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#include <mtd_node.h>
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#define DFU_ALT_BUF_LEN SZ_1K
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static void board_get_alt_info(const char *dev, char *buff)
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{
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char var_name[32] = "dfu_alt_info_";
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int ret;
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ALLOC_CACHE_ALIGN_BUFFER(char, tmp_alt, DFU_ALT_BUF_LEN);
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/* name of env variable to read = dfu_alt_info_<dev> */
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strcat(var_name, dev);
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ret = env_get_f(var_name, tmp_alt, DFU_ALT_BUF_LEN);
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if (ret) {
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if (buff[0] != '\0')
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strcat(buff, "&");
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strncat(buff, tmp_alt, DFU_ALT_BUF_LEN);
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}
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}
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void set_dfu_alt_info(char *interface, char *devstr)
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{
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struct udevice *dev;
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struct mtd_info *mtd;
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ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
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if (env_get("dfu_alt_info"))
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return;
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memset(buf, 0, sizeof(buf));
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/* probe all MTD devices */
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mtd_probe_devices();
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board_get_alt_info("ram", buf);
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if (!uclass_get_device(UCLASS_MMC, 0, &dev))
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board_get_alt_info("mmc0", buf);
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if (!uclass_get_device(UCLASS_MMC, 1, &dev))
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board_get_alt_info("mmc1", buf);
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if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
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board_get_alt_info("nor0", buf);
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mtd = get_mtd_device_nm("nand0");
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if (!IS_ERR_OR_NULL(mtd))
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board_get_alt_info("nand0", buf);
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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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board_get_alt_info("spi-nand0", buf);
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#ifdef CONFIG_DFU_VIRT
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strncat(buf, "&virt 0=OTP", DFU_ALT_BUF_LEN);
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if (IS_ENABLED(CONFIG_PMIC_STPMIC1))
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strncat(buf, "&virt 1=PMIC", DFU_ALT_BUF_LEN);
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#endif
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env_set("dfu_alt_info", buf);
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puts("DFU alt info setting: done\n");
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}
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#if CONFIG_IS_ENABLED(DFU_VIRT)
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#include <dfu.h>
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#include <power/stpmic1.h>
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static int dfu_otp_read(u64 offset, u8 *buffer, long *size)
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{
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struct udevice *dev;
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int ret;
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ret = uclass_get_device_by_driver(UCLASS_MISC,
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DM_GET_DRIVER(stm32mp_bsec),
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&dev);
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if (ret)
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return ret;
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ret = misc_read(dev, offset + STM32_BSEC_OTP_OFFSET, buffer, *size);
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if (ret >= 0) {
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*size = ret;
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ret = 0;
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}
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return 0;
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}
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static int dfu_pmic_read(u64 offset, u8 *buffer, long *size)
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{
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int ret;
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#ifdef CONFIG_PMIC_STPMIC1
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struct udevice *dev;
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ret = uclass_get_device_by_driver(UCLASS_MISC,
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DM_GET_DRIVER(stpmic1_nvm),
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&dev);
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if (ret)
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return ret;
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ret = misc_read(dev, 0xF8 + offset, buffer, *size);
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if (ret >= 0) {
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*size = ret;
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ret = 0;
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}
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if (ret == -EACCES) {
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*size = 0;
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ret = 0;
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}
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#else
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pr_err("PMIC update not supported");
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ret = -EOPNOTSUPP;
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#endif
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return ret;
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}
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int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
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void *buf, long *len)
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{
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switch (dfu->data.virt.dev_num) {
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case 0x0:
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return dfu_otp_read(offset, buf, len);
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case 0x1:
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return dfu_pmic_read(offset, buf, len);
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}
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*len = 0;
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return 0;
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}
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int __weak dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
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{
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*size = SZ_1K;
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return 0;
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}
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#endif
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