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From e1b9d122030220d8b8176d9e23568e26fa2f9d23 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 19 Oct 2018 08:56:41 +0200
Subject: [PATCH 10/18] mtd: partitions: Add second compatible for redboot
Simple backport of the upstream redboot partition table
bindings that are used in the mainline Linux kernel.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/mtd/redboot.c | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -25,7 +25,7 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/vmalloc.h>
-
+#include <linux/of.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/module.h>
@@ -56,6 +56,31 @@ static inline int redboot_checksum(struc
return 1;
}
+#ifdef CONFIG_OF
+static void parse_redboot_of(struct mtd_info *master)
+{
+ struct device_node *np;
+ u32 dirblock;
+ int ret;
+
+ np = mtd_get_of_node(master);
+ if (!np)
+ return;
+ ret = of_property_read_u32(np, "fis-index-block", &dirblock);
+ if (ret)
+ return;
+ /*
+ * Assign the block found in the device tree to the local
+ * directory block pointer.
+ */
+ directory = dirblock;
+}
+#else
+static void parse_redboot_of(struct mtd_info *master)
+{
+}
+#endif
+
static int parse_redboot_partitions(struct mtd_info *master,
const struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
@@ -75,6 +100,7 @@ static int parse_redboot_partitions(stru
#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
static char nullstring[] = "unallocated";
#endif
+ parse_redboot_of(master);
if ( directory < 0 ) {
offset = master->size + directory * master->erasesize;
@@ -298,6 +324,7 @@ static int parse_redboot_partitions(stru
static const struct of_device_id redboot_parser_of_match_table[] = {
{ .compatible = "ecoscentric,redboot-fis-partitions" },
+ { .compatible = "redboot-fis" },
{},
};
MODULE_DEVICE_TABLE(of, redboot_parser_of_match_table);
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