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path: root/target/linux/lantiq/patches-3.10/0105-mips-lantiq-flash-add-jedec-probe.patch
blob: 327a45ccd8c9dd369b25ba4dbaeb0c440a3d0c3e (plain)
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Makes the Lantiq flash driver try jedec probing if cfi probing fails.

(Based on work by Simon Hayes first published on www.psidoc.com and 
http://sourceforge.net/projects/hh2b4ever/)

Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com>

---
 lantiq-flash.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

--- a/drivers/mtd/maps/lantiq-flash.c	2014-03-23 09:18:25.099370216 +0100
+++ b/drivers/mtd/maps/lantiq-flash.c	2014-03-19 17:19:45.732111306 +0100
@@ -117,6 +117,11 @@ ltq_mtd_probe(struct platform_device *pd
 	struct cfi_private *cfi;
 	int err;
 
+	static const char *rom_probe_types[] = {
+		"cfi_probe", "jedec_probe", NULL
+	};
+	const char **type;
+
 	if (of_machine_is_compatible("lantiq,falcon") &&
 			(ltq_boot_select() != BS_FLASH)) {
 		dev_err(&pdev->dev, "invalid bootstrap options\n");
@@ -154,7 +159,11 @@ ltq_mtd_probe(struct platform_device *pd
 	ltq_mtd->map->copy_to = ltq_copy_to;
 
 	ltq_mtd->map->map_priv_1 = LTQ_NOR_PROBING;
-	ltq_mtd->mtd = do_map_probe("cfi_probe", ltq_mtd->map);
+
+	for (type = rom_probe_types; !ltq_mtd->mtd && *type; type++) {
+		ltq_mtd->mtd = do_map_probe(*type, ltq_mtd->map);
+	}
+ 
 	ltq_mtd->map->map_priv_1 = LTQ_NOR_NORMAL;
 
 	if (!ltq_mtd->mtd) {