51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
// 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;
|
|
}
|