mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
79 lines
2.3 KiB
Diff
79 lines
2.3 KiB
Diff
|
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));
|