ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/bcm63xx/patches-5.4/033-v5.9-mtd-parsers-bcm63xx-simplify-CFE-detection.patch b/target/linux/bcm63xx/patches-5.4/033-v5.9-mtd-parsers-bcm63xx-simplify-CFE-detection.patch
new file mode 100644
index 0000000..ff1f30c
--- /dev/null
+++ b/target/linux/bcm63xx/patches-5.4/033-v5.9-mtd-parsers-bcm63xx-simplify-CFE-detection.patch
@@ -0,0 +1,78 @@
+From 91e81150d38842b58133ce1a5d70c88e8f1cf7c1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Mon, 15 Jun 2020 11:17:40 +0200
+Subject: [PATCH] mtd: parsers: bcm63xx: simplify CFE detection
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Instead of trying to parse CFE version string, which is customized by some
+vendors, let's just check that "CFE1" was passed on argument 3.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
+Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20200615091740.2958303-1-noltari@gmail.com
+---
+ drivers/mtd/parsers/bcm63xxpart.c | 32 ++++++++++++-------------------
+ 1 file changed, 12 insertions(+), 20 deletions(-)
+
+--- a/drivers/mtd/parsers/bcm63xxpart.c
++++ b/drivers/mtd/parsers/bcm63xxpart.c
+@@ -22,6 +22,11 @@
+ #include <linux/mtd/partitions.h>
+ #include <linux/of.h>
+
++#ifdef CONFIG_MIPS
++#include <asm/bootinfo.h>
++#include <asm/fw/cfe/cfe_api.h>
++#endif /* CONFIG_MIPS */
++
+ #define BCM963XX_CFE_BLOCK_SIZE SZ_64K /* always at least 64KiB */
+
+ #define BCM963XX_CFE_MAGIC_OFFSET 0x4e0
+@@ -32,28 +37,15 @@
+ #define STR_NULL_TERMINATE(x) \
+ do { char *_str = (x); _str[sizeof(x) - 1] = 0; } while (0)
+
+-static int bcm63xx_detect_cfe(struct mtd_info *master)
++static inline int bcm63xx_detect_cfe(void)
+ {
+- char buf[9];
+- int ret;
+- size_t retlen;
+-
+- ret = mtd_read(master, BCM963XX_CFE_VERSION_OFFSET, 5, &retlen,
+- (void *)buf);
+- buf[retlen] = 0;
+-
+- if (ret)
+- return ret;
+-
+- if (strncmp("cfe-v", buf, 5) == 0)
+- return 0;
++ int ret = 0;
+
+- /* very old CFE's do not have the cfe-v string, so check for magic */
+- ret = mtd_read(master, BCM963XX_CFE_MAGIC_OFFSET, 8, &retlen,
+- (void *)buf);
+- buf[retlen] = 0;
++#ifdef CONFIG_MIPS
++ ret = (fw_arg3 == CFE_EPTSEAL);
++#endif /* CONFIG_MIPS */
+
+- return strncmp("CFE1CFE1", buf, 8);
++ return ret;
+ }
+
+ static int bcm63xx_read_nvram(struct mtd_info *master,
+@@ -138,7 +130,7 @@ static int bcm63xx_parse_cfe_partitions(
+ struct bcm963xx_nvram *nvram = NULL;
+ int ret;
+
+- if (bcm63xx_detect_cfe(master))
++ if (!bcm63xx_detect_cfe())
+ return -EINVAL;
+
+ nvram = vzalloc(sizeof(*nvram));