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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2023, Linaro Limited
*/
#include <efi_loader.h>
#include <env.h>
#include <fwu.h>
#include <fwu_mdata.h>
#include <memalign.h>
#include <mtd.h>
#define DFU_ALT_BUF_LEN 256
/* Generate dfu_alt_info from partitions */
void set_dfu_alt_info(char *interface, char *devstr)
{
ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
struct mtd_info *mtd;
int ret;
memset(buf, 0, DFU_ALT_BUF_LEN);
mtd_probe_devices();
mtd = get_mtd_device_nm("nor1");
if (IS_ERR_OR_NULL(mtd))
return;
ret = fwu_gen_alt_info_from_mtd(buf, DFU_ALT_BUF_LEN, mtd);
if (ret < 0) {
log_err("Error: Failed to generate dfu_alt_info. (%d)\n", ret);
return;
}
log_debug("Make dfu_alt_info: '%s'\n", buf);
env_set("dfu_alt_info", buf);
}
/**
* fwu_plat_get_bootidx() - Get the value of the boot index
* @boot_idx: Boot index value
*
* Get the value of the bank(partition) from which the platform
* has booted. This value is passed to U-Boot from the earlier
* stage bootloader which loads and boots all the relevant
* firmware images
*/
void fwu_plat_get_bootidx(uint *boot_idx)
{
int ret;
u32 buf;
size_t readlen;
struct mtd_info *mtd;
*boot_idx = 0;
mtd_probe_devices();
mtd = get_mtd_device_nm("nor1");
if (IS_ERR_OR_NULL(mtd))
return;
ret = mtd_read(mtd, SCB_PLAT_METADATA_OFFSET, sizeof(buf),
&readlen, (u_char *)&buf);
if (ret < 0)
return;
*boot_idx = buf;
}
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