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