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// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
*/
#include <common.h>
#include <blk.h>
#include <dm.h>
#include <dfu.h>
#include <env.h>
#include <memalign.h>
#include <misc.h>
#include <mtd.h>
#include <mtd_node.h>
#include <asm/arch/stm32prog.h>
#define DFU_ALT_BUF_LEN SZ_1K
static void board_get_alt_info_mmc(struct udevice *dev, char *buf)
{
struct disk_partition info;
int p, len, devnum;
bool first = true;
const char *name;
struct mmc *mmc;
struct blk_desc *desc;
mmc = mmc_get_mmc_dev(dev);
if (!mmc)
return;
if (mmc_init(mmc))
return;
desc = mmc_get_blk_desc(mmc);
if (!desc)
return;
name = blk_get_if_type_name(desc->if_type);
devnum = desc->devnum;
len = strlen(buf);
if (buf[0] != '\0')
len += snprintf(buf + len,
DFU_ALT_BUF_LEN - len, "&");
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
"%s %d=", name, devnum);
if (IS_MMC(mmc) && mmc->capacity_boot) {
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
"%s%d_boot1 raw 0x0 0x%llx mmcpart 1;",
name, devnum, mmc->capacity_boot);
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
"%s%d_boot2 raw 0x0 0x%llx mmcpart 2",
name, devnum, mmc->capacity_boot);
first = false;
}
for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
if (part_get_info(desc, p, &info))
continue;
if (!first)
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, ";");
first = false;
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
"%s%d_%s part %d %d",
name, devnum, info.name, devnum, p);
}
}
static void board_get_alt_info_mtd(struct mtd_info *mtd, char *buf)
{
struct mtd_info *part;
bool first = true;
const char *name;
int len, partnum = 0;
name = mtd->name;
len = strlen(buf);
if (buf[0] != '\0')
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, "&");
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
"mtd %s=", name);
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
"%s raw 0x0 0x%llx ",
name, mtd->size);
list_for_each_entry(part, &mtd->partitions, node) {
partnum++;
if (!first)
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len, ";");
first = false;
len += snprintf(buf + len, DFU_ALT_BUF_LEN - len,
"%s_%s part %d",
name, part->name, partnum);
}
}
void set_dfu_alt_info(char *interface, char *devstr)
{
struct udevice *dev;
struct mtd_info *mtd;
ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
if (env_get("dfu_alt_info"))
return;
memset(buf, 0, sizeof(buf));
snprintf(buf, DFU_ALT_BUF_LEN,
"ram 0=%s", CONFIG_DFU_ALT_RAM0);
if (CONFIG_IS_ENABLED(MMC)) {
if (!uclass_get_device(UCLASS_MMC, 0, &dev))
board_get_alt_info_mmc(dev, buf);
if (!uclass_get_device(UCLASS_MMC, 1, &dev))
board_get_alt_info_mmc(dev, buf);
}
if (CONFIG_IS_ENABLED(MTD)) {
/* probe all MTD devices */
mtd_probe_devices();
/* probe SPI flash device on a bus */
if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev)) {
mtd = get_mtd_device_nm("nor0");
if (!IS_ERR_OR_NULL(mtd))
board_get_alt_info_mtd(mtd, buf);
}
mtd = get_mtd_device_nm("nand0");
if (!IS_ERR_OR_NULL(mtd))
board_get_alt_info_mtd(mtd, buf);
mtd = get_mtd_device_nm("spi-nand0");
if (!IS_ERR_OR_NULL(mtd))
board_get_alt_info_mtd(mtd, buf);
}
if (IS_ENABLED(CONFIG_DFU_VIRT)) {
strncat(buf, "&virt 0=OTP", DFU_ALT_BUF_LEN);
if (IS_ENABLED(CONFIG_PMIC_STPMIC1))
strncat(buf, "&virt 1=PMIC", DFU_ALT_BUF_LEN);
}
env_set("dfu_alt_info", buf);
puts("DFU alt info setting: done\n");
}
#if CONFIG_IS_ENABLED(DFU_VIRT)
#include <dfu.h>
#include <power/stpmic1.h>
static int dfu_otp_read(u64 offset, u8 *buffer, long *size)
{
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stm32mp_bsec),
&dev);
if (ret)
return ret;
ret = misc_read(dev, offset + STM32_BSEC_OTP_OFFSET, buffer, *size);
if (ret >= 0) {
*size = ret;
ret = 0;
}
return 0;
}
static int dfu_pmic_read(u64 offset, u8 *buffer, long *size)
{
int ret;
#ifdef CONFIG_PMIC_STPMIC1
struct udevice *dev;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stpmic1_nvm),
&dev);
if (ret)
return ret;
ret = misc_read(dev, 0xF8 + offset, buffer, *size);
if (ret >= 0) {
*size = ret;
ret = 0;
}
if (ret == -EACCES) {
*size = 0;
ret = 0;
}
#else
pr_err("PMIC update not supported");
ret = -EOPNOTSUPP;
#endif
return ret;
}
int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
switch (dfu->data.virt.dev_num) {
case 0x0:
return dfu_otp_read(offset, buf, len);
case 0x1:
return dfu_pmic_read(offset, buf, len);
}
if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_read_medium_virt(dfu, offset, buf, len);
*len = 0;
return 0;
}
int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_write_medium_virt(dfu, offset, buf, len);
return -EOPNOTSUPP;
}
int __weak dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
{
if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_get_medium_size_virt(dfu, size);
*size = SZ_1K;
return 0;
}
#endif
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