diff options
Diffstat (limited to 'target/linux/bcm63xx/patches-5.4/033-v5.9-mtd-parsers-bcm63xx-simplify-CFE-detection.patch')
| -rw-r--r-- | target/linux/bcm63xx/patches-5.4/033-v5.9-mtd-parsers-bcm63xx-simplify-CFE-detection.patch | 78 |
1 files changed, 78 insertions, 0 deletions
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 0000000000..ff1f30cb9b --- /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)); |