1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl>
 4 */
 5
 6#include <linux/bcm47xx_nvram.h>
 7#include <linux/mtd/mtd.h>
 8#include <linux/mtd/partitions.h>
 9
10#include "ofpart_linksys_ns.h"
11
12#define NVRAM_BOOT_PART		"bootpartition"
13
14static int ofpart_linksys_ns_bootpartition(void)
15{
16	char buf[4];
17	int bootpartition;
18
19	/* Check CFE environment variable */
20	if (bcm47xx_nvram_getenv(NVRAM_BOOT_PART, buf, sizeof(buf)) > 0) {
21		if (!kstrtoint(buf, 0, &bootpartition))
22			return bootpartition;
23		pr_warn("Failed to parse %s value \"%s\"\n", NVRAM_BOOT_PART,
24			buf);
25	} else {
26		pr_warn("Failed to get NVRAM \"%s\"\n", NVRAM_BOOT_PART);
27	}
28
29	return 0;
30}
31
32int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
33				     struct mtd_partition *parts,
34				     int nr_parts)
35{
36	int bootpartition = ofpart_linksys_ns_bootpartition();
37	int trx_idx = 0;
38	int i;
39
40	for (i = 0; i < nr_parts; i++) {
41		if (of_device_is_compatible(parts[i].of_node, "linksys,ns-firmware")) {
42			if (trx_idx++ == bootpartition)
43				parts[i].name = "firmware";
44			else
45				parts[i].name = "backup";
46		}
47	}
48
49	return 0;
50}

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl>
 4 */
 5
 6#include <linux/bcm47xx_nvram.h>
 7#include <linux/mtd/mtd.h>
 8#include <linux/mtd/partitions.h>
 9
10#include "ofpart_linksys_ns.h"
11
12#define NVRAM_BOOT_PART		"bootpartition"
13
14static int ofpart_linksys_ns_bootpartition(void)
15{
16	char buf[4];
17	int bootpartition;
18
19	/* Check CFE environment variable */
20	if (bcm47xx_nvram_getenv(NVRAM_BOOT_PART, buf, sizeof(buf)) > 0) {
21		if (!kstrtoint(buf, 0, &bootpartition))
22			return bootpartition;
23		pr_warn("Failed to parse %s value \"%s\"\n", NVRAM_BOOT_PART,
24			buf);
25	} else {
26		pr_warn("Failed to get NVRAM \"%s\"\n", NVRAM_BOOT_PART);
27	}
28
29	return 0;
30}
31
32int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
33				     struct mtd_partition *parts,
34				     int nr_parts)
35{
36	int bootpartition = ofpart_linksys_ns_bootpartition();
37	int trx_idx = 0;
38	int i;
39
40	for (i = 0; i < nr_parts; i++) {
41		if (of_device_is_compatible(parts[i].of_node, "linksys,ns-firmware")) {
42			if (trx_idx++ == bootpartition)
43				parts[i].name = "firmware";
44			else
45				parts[i].name = "backup";
46		}
47	}
48
49	return 0;
50}