mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 16:31:13 +00:00
3fd0a4222b
1. Use upstream accepted NVMEM patches 2. Minor fix for BCM4908 partitioning 3. Support for Linksys firmware partitions on Northstar Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
157 lines
5.1 KiB
Diff
157 lines
5.1 KiB
Diff
From 7134a2d026d942210b4d26d6059c9d979ca7866e Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
Date: Fri, 12 Mar 2021 14:49:19 +0100
|
|
Subject: [PATCH] mtd: parsers: ofpart: support Linksys Northstar partitions
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
This allows extending ofpart parser with support for Linksys Northstar
|
|
devices. That support uses recently added quirks mechanism.
|
|
|
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
|
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
|
|
Link: https://lore.kernel.org/linux-mtd/20210312134919.7767-2-zajec5@gmail.com
|
|
---
|
|
drivers/mtd/parsers/Kconfig | 10 +++++
|
|
drivers/mtd/parsers/Makefile | 1 +
|
|
drivers/mtd/parsers/ofpart_core.c | 6 +++
|
|
drivers/mtd/parsers/ofpart_linksys_ns.c | 50 +++++++++++++++++++++++++
|
|
drivers/mtd/parsers/ofpart_linksys_ns.h | 18 +++++++++
|
|
5 files changed, 85 insertions(+)
|
|
create mode 100644 drivers/mtd/parsers/ofpart_linksys_ns.c
|
|
create mode 100644 drivers/mtd/parsers/ofpart_linksys_ns.h
|
|
|
|
--- a/drivers/mtd/parsers/Kconfig
|
|
+++ b/drivers/mtd/parsers/Kconfig
|
|
@@ -76,6 +76,16 @@ config MTD_OF_PARTS_BCM4908
|
|
that can have multiple "firmware" partitions. It takes care of
|
|
finding currently used one and backup ones.
|
|
|
|
+config MTD_OF_PARTS_LINKSYS_NS
|
|
+ bool "Linksys Northstar partitioning support"
|
|
+ depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCM4908 || COMPILE_TEST)
|
|
+ default ARCH_BCM_5301X
|
|
+ help
|
|
+ This provides partitions parser for Linksys devices based on Broadcom
|
|
+ Northstar architecture. Linksys commonly uses fixed flash layout with
|
|
+ two "firmware" partitions. Currently used firmware has to be detected
|
|
+ using CFE environment variable.
|
|
+
|
|
config MTD_PARSER_IMAGETAG
|
|
tristate "Parser for BCM963XX Image Tag format partitions"
|
|
depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
|
|
--- a/drivers/mtd/parsers/Makefile
|
|
+++ b/drivers/mtd/parsers/Makefile
|
|
@@ -6,6 +6,7 @@ obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdl
|
|
obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o
|
|
ofpart-y += ofpart_core.o
|
|
ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908) += ofpart_bcm4908.o
|
|
+ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)+= ofpart_linksys_ns.o
|
|
obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o
|
|
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
|
|
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
|
|
--- a/drivers/mtd/parsers/ofpart_core.c
|
|
+++ b/drivers/mtd/parsers/ofpart_core.c
|
|
@@ -17,6 +17,7 @@
|
|
#include <linux/mtd/partitions.h>
|
|
|
|
#include "ofpart_bcm4908.h"
|
|
+#include "ofpart_linksys_ns.h"
|
|
|
|
struct fixed_partitions_quirks {
|
|
int (*post_parse)(struct mtd_info *mtd, struct mtd_partition *parts, int nr_parts);
|
|
@@ -26,6 +27,10 @@ static struct fixed_partitions_quirks bc
|
|
.post_parse = bcm4908_partitions_post_parse,
|
|
};
|
|
|
|
+static struct fixed_partitions_quirks linksys_ns_partitions_quirks = {
|
|
+ .post_parse = linksys_ns_partitions_post_parse,
|
|
+};
|
|
+
|
|
static const struct of_device_id parse_ofpart_match_table[];
|
|
|
|
static bool node_has_compatible(struct device_node *pp)
|
|
@@ -167,6 +172,7 @@ static const struct of_device_id parse_o
|
|
{ .compatible = "fixed-partitions" },
|
|
/* Customized */
|
|
{ .compatible = "brcm,bcm4908-partitions", .data = &bcm4908_partitions_quirks, },
|
|
+ { .compatible = "linksys,ns-partitions", .data = &linksys_ns_partitions_quirks, },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, parse_ofpart_match_table);
|
|
--- /dev/null
|
|
+++ b/drivers/mtd/parsers/ofpart_linksys_ns.c
|
|
@@ -0,0 +1,50 @@
|
|
+// 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;
|
|
+}
|
|
--- /dev/null
|
|
+++ b/drivers/mtd/parsers/ofpart_linksys_ns.h
|
|
@@ -0,0 +1,18 @@
|
|
+/* SPDX-License-Identifier: GPL-2.0 */
|
|
+#ifndef __OFPART_LINKSYS_NS_H
|
|
+#define __OFPART_LINKSYS_NS_H
|
|
+
|
|
+#ifdef CONFIG_MTD_OF_PARTS_LINKSYS_NS
|
|
+int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
|
|
+ struct mtd_partition *parts,
|
|
+ int nr_parts);
|
|
+#else
|
|
+static inline int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
|
|
+ struct mtd_partition *parts,
|
|
+ int nr_parts)
|
|
+{
|
|
+ return -EOPNOTSUPP;
|
|
+}
|
|
+#endif
|
|
+
|
|
+#endif
|