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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl>
*/
#include <linux/bcm47xx_nvram.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include "ofpart_linksys_ns.h"
#define NVRAM_BOOT_PART "bootpartition"
static int ofpart_linksys_ns_bootpartition(void)
{
char buf[4];
int bootpartition;
/* Check CFE environment variable */
if (bcm47xx_nvram_getenv(NVRAM_BOOT_PART, buf, sizeof(buf)) > 0) {
if (!kstrtoint(buf, 0, &bootpartition))
return bootpartition;
pr_warn("Failed to parse %s value \"%s\"\n", NVRAM_BOOT_PART,
buf);
} else {
pr_warn("Failed to get NVRAM \"%s\"\n", NVRAM_BOOT_PART);
}
return 0;
}
int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
struct mtd_partition *parts,
int nr_parts)
{
int bootpartition = ofpart_linksys_ns_bootpartition();
int trx_idx = 0;
int i;
for (i = 0; i < nr_parts; i++) {
if (of_device_is_compatible(parts[i].of_node, "linksys,ns-firmware")) {
if (trx_idx++ == bootpartition)
parts[i].name = "firmware";
else
parts[i].name = "backup";
}
}
return 0;
}
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