Patchwork [v3,3/8] mtd: cfi_probe: add support for SST 0x0701 vendorname

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Submitter Guillaume LECERF
Date April 22, 2010, 8:35 a.m.
Message ID <20100422083556.17166.47969.stgit@shiryu.yomgui.biz>
Download mbox | patch
Permalink /patch/50712/
State New
Headers show

Comments

Guillaume LECERF - April 22, 2010, 8:35 a.m.
SST 39VF160x and 39VF320x chips use vendorname id 0x0701 and alternative
unlock addresses. Add support for them in cfi_probe.c.

Signed-off-by: Guillaume LECERF <glecerf@gmail.com>
---
 drivers/mtd/chips/cfi_probe.c |    8 ++++++++
 include/linux/mtd/cfi.h       |    1 +
 2 files changed, 9 insertions(+), 0 deletions(-)

Patch

diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c
index 045dc10..b2acd32 100644
--- a/drivers/mtd/chips/cfi_probe.c
+++ b/drivers/mtd/chips/cfi_probe.c
@@ -206,6 +206,11 @@  static int __xipram cfi_chip_setup(struct map_info *map,
 #endif
 	}
 
+	if (cfi->cfiq->P_ID == P_ID_SST_OLD) {
+		addr_unlock1 = 0x5555;
+		addr_unlock2 = 0x2AAA;
+	}
+
 	/*
 	 * Note we put the device back into Read Mode BEFORE going into Auto
 	 * Select Mode, as some devices support nesting of modes, others
@@ -271,6 +276,9 @@  static char *vendorname(__u16 vendor)
 	case P_ID_SST_PAGE:
 		return "SST Page Write";
 
+	case P_ID_SST_OLD:
+		return "SST 39VF160x/39VF320x";
+
 	case P_ID_INTEL_PERFORMANCE:
 		return "Intel Performance Code";
 
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index cee05b1..5716fc7 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -253,6 +253,7 @@  struct cfi_bri_query {
 #define P_ID_MITSUBISHI_STD     0x0100
 #define P_ID_MITSUBISHI_EXT     0x0101
 #define P_ID_SST_PAGE           0x0102
+#define P_ID_SST_OLD            0x0701
 #define P_ID_INTEL_PERFORMANCE  0x0200
 #define P_ID_INTEL_DATA         0x0210
 #define P_ID_RESERVED           0xffff