1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
3 * Copyright (C) 2020, STMicroelectronics - All Rights Reserved
14 #include <asm/arch/stm32prog.h>
16 #define DFU_ALT_BUF_LEN SZ_1K
18 static void board_get_alt_info_mmc(struct udevice *dev, char *buf)
20 disk_partition_t info;
25 struct blk_desc *desc;
27 mmc = mmc_get_mmc_dev(dev);
34 desc = mmc_get_blk_desc(mmc);
38 name = blk_get_if_type_name(desc->if_type);
39 devnum = desc->devnum;
43 len += snprintf(buf + len,
44 DFU_ALT_BUF_LEN - len, "&");
45 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
46 "%s %d=", name, devnum);
48 if (IS_MMC(mmc) && mmc->capacity_boot) {
49 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
50 "%s%d_boot1 raw 0x0 0x%llx mmcpart 1;",
51 name, devnum, mmc->capacity_boot);
52 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
53 "%s%d_boot2 raw 0x0 0x%llx mmcpart 2",
54 name, devnum, mmc->capacity_boot);
58 for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
59 if (part_get_info(desc, p, &info))
62 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, ";");
64 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
66 name, devnum, info.name, devnum, p);
70 static void board_get_alt_info_mtd(struct mtd_info *mtd, char *buf)
72 struct mtd_info *part;
81 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, "&");
82 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
85 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
89 list_for_each_entry(part, &mtd->partitions, node) {
92 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, ";");
95 len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
97 name, part->name, partnum);
101 void set_dfu_alt_info(char *interface, char *devstr)
104 struct mtd_info *mtd;
106 ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
108 if (env_get("dfu_alt_info"))
111 memset(buf, 0, sizeof(buf));
113 snprintf(buf, DFU_ALT_BUF_LEN,
114 "ram 0=%s", CONFIG_DFU_ALT_RAM0);
116 if (!uclass_get_device(UCLASS_MMC, 0, &dev))
117 board_get_alt_info_mmc(dev, buf);
119 if (!uclass_get_device(UCLASS_MMC, 1, &dev))
120 board_get_alt_info_mmc(dev, buf);
122 if (CONFIG_IS_ENABLED(MTD)) {
123 /* probe all MTD devices */
126 /* probe SPI flash device on a bus */
127 if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev)) {
128 mtd = get_mtd_device_nm("nor0");
129 if (!IS_ERR_OR_NULL(mtd))
130 board_get_alt_info_mtd(mtd, buf);
133 mtd = get_mtd_device_nm("nand0");
134 if (!IS_ERR_OR_NULL(mtd))
135 board_get_alt_info_mtd(mtd, buf);
137 mtd = get_mtd_device_nm("spi-nand0");
138 if (!IS_ERR_OR_NULL(mtd))
139 board_get_alt_info_mtd(mtd, buf);
142 #ifdef CONFIG_DFU_VIRT
143 strncat(buf, "&virt 0=OTP", DFU_ALT_BUF_LEN);
145 if (IS_ENABLED(CONFIG_PMIC_STPMIC1))
146 strncat(buf, "&virt 1=PMIC", DFU_ALT_BUF_LEN);
149 env_set("dfu_alt_info", buf);
150 puts("DFU alt info setting: done\n");
153 #if CONFIG_IS_ENABLED(DFU_VIRT)
155 #include <power/stpmic1.h>
157 static int dfu_otp_read(u64 offset, u8 *buffer, long *size)
162 ret = uclass_get_device_by_driver(UCLASS_MISC,
163 DM_GET_DRIVER(stm32mp_bsec),
168 ret = misc_read(dev, offset + STM32_BSEC_OTP_OFFSET, buffer, *size);
177 static int dfu_pmic_read(u64 offset, u8 *buffer, long *size)
180 #ifdef CONFIG_PMIC_STPMIC1
183 ret = uclass_get_device_by_driver(UCLASS_MISC,
184 DM_GET_DRIVER(stpmic1_nvm),
189 ret = misc_read(dev, 0xF8 + offset, buffer, *size);
194 if (ret == -EACCES) {
199 pr_err("PMIC update not supported");
206 int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
207 void *buf, long *len)
209 switch (dfu->data.virt.dev_num) {
211 return dfu_otp_read(offset, buf, len);
213 return dfu_pmic_read(offset, buf, len);
216 if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
217 dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
218 return stm32prog_read_medium_virt(dfu, offset, buf, len);
224 int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
225 void *buf, long *len)
227 if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
228 dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
229 return stm32prog_write_medium_virt(dfu, offset, buf, len);
234 int __weak dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
236 if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
237 dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
238 return stm32prog_get_medium_size_virt(dfu, size);