---

yaml --- r: 84255 b: refs/heads/master c: de7921f h: refs/heads/master i: 84253: f664a13 84251: 7337c6d 84247: bc8c1c0 84239: 290f8d2 84223: 961049f v: v3
git-mirror · Jan 10, 2008 · 4b172a0 · 4b172a0
1 parent ce3dd04
commit 4b172a0
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Showing 5 changed files with 24 additions and 10 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 78b65179d08e7e4466ba69d5ede85035a2c96358
+refs/heads/master: de7921f01a407e0cb38143363995db89a5f9a5c5
diff --git a/trunk/drivers/mtd/chips/cfi_cmdset_0002.c b/trunk/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -342,10 +342,12 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
 		/* Modify the unlock address if we are in compatibility mode */
 		if (	/* x16 in x8 mode */
 			((cfi->device_type == CFI_DEVICETYPE_X8) &&
-				(cfi->cfiq->InterfaceDesc == 2)) ||
+				(cfi->cfiq->InterfaceDesc ==
+					CFI_INTERFACE_X8_BY_X16_ASYNC)) ||
 			/* x32 in x16 mode */
 			((cfi->device_type == CFI_DEVICETYPE_X16) &&
-				(cfi->cfiq->InterfaceDesc == 4)))
+				(cfi->cfiq->InterfaceDesc ==
+					CFI_INTERFACE_X16_BY_X32_ASYNC)))
 		{
 			cfi->addr_unlock1 = 0xaaa;
 			cfi->addr_unlock2 = 0x555;

diff --git a/trunk/drivers/mtd/chips/cfi_probe.c b/trunk/drivers/mtd/chips/cfi_probe.c
@@ -370,27 +370,27 @@ static void print_cfi_ident(struct cfi_ident *cfip)
 	printk("Device size: 0x%X bytes (%d MiB)\n", 1 << cfip->DevSize, 1<< (cfip->DevSize - 20));
 	printk("Flash Device Interface description: 0x%4.4X\n", cfip->InterfaceDesc);
 	switch(cfip->InterfaceDesc) {
-	case 0:
+	case CFI_INTERFACE_X8_ASYNC:
 		printk("  - x8-only asynchronous interface\n");
 		break;
 
-	case 1:
+	case CFI_INTERFACE_X16_ASYNC:
 		printk("  - x16-only asynchronous interface\n");
 		break;
 
-	case 2:
+	case CFI_INTERFACE_X8_BY_X16_ASYNC:
 		printk("  - supports x8 and x16 via BYTE# with asynchronous interface\n");
 		break;
 
-	case 3:
+	case CFI_INTERFACE_X32_ASYNC:
 		printk("  - x32-only asynchronous interface\n");
 		break;
 
-	case 4:
+	case CFI_INTERFACE_X16_BY_X32_ASYNC:
 		printk("  - supports x16 and x32 via Word# with asynchronous interface\n");
 		break;
 
-	case 65535:
+	case CFI_INTERFACE_NOT_ALLOWED:
 		printk("  - Not Allowed / Reserved\n");
 		break;
 

diff --git a/trunk/drivers/mtd/maps/scb2_flash.c b/trunk/drivers/mtd/maps/scb2_flash.c
@@ -79,7 +79,7 @@ scb2_fixup_mtd(struct mtd_info *mtd)
 	struct cfi_private *cfi = map->fldrv_priv;
 
 	/* barf if this doesn't look right */
-	if (cfi->cfiq->InterfaceDesc != 1) {
+	if (cfi->cfiq->InterfaceDesc != CFI_INTERFACE_X16_ASYNC) {
 		printk(KERN_ERR MODNAME ": unsupported InterfaceDesc: %#x\n",
 		    cfi->cfiq->InterfaceDesc);
 		return -1;

diff --git a/trunk/include/linux/mtd/cfi.h b/trunk/include/linux/mtd/cfi.h
@@ -98,6 +98,18 @@ static inline int cfi_interleave_supported(int i)
 #define CFI_DEVICETYPE_X32 (32 / 8)
 #define CFI_DEVICETYPE_X64 (64 / 8)
 
+
+/* Device Interface Code Assignments from the "Common Flash Memory Interface
+ * Publication 100" dated December 1, 2001.
+ */
+#define CFI_INTERFACE_X8_ASYNC		0x0000
+#define CFI_INTERFACE_X16_ASYNC		0x0001
+#define CFI_INTERFACE_X8_BY_X16_ASYNC	0x0002
+#define CFI_INTERFACE_X32_ASYNC		0x0003
+#define CFI_INTERFACE_X16_BY_X32_ASYNC	0x0005
+#define CFI_INTERFACE_NOT_ALLOWED	0xffff
+
+
 /* NB: We keep these structures in memory in HOST byteorder, except
  * where individually noted.
  */