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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 <log.h>
#include <memalign.h>
#include <misc.h>
#include <mtd.h>
#include <mtd_node.h>
#include <asm/arch/stm32prog.h>
#include <linux/printk.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_uclass_name(desc->uclass_id);
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 (IS_ENABLED(CONFIG_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("nor1");
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)) {
/* virtual device id 0 is aligned with stm32mp_dfu_virt.c */
strlcat(buf, "&virt 0=OTP", DFU_ALT_BUF_LEN);
if (IS_ENABLED(CONFIG_PMIC_STPMIC1))
strlcat(buf, "&virt 1=PMIC", DFU_ALT_BUF_LEN);
}
env_set("dfu_alt_info", buf);
puts("DFU alt info setting: done\n");
}
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