---

yaml --- r: 33996 b: refs/heads/master c: 5b0c5c2 h: refs/heads/master v: v3
git-mirror · Aug 17, 2006 · fe794b9 · fe794b9
1 parent 99ef5a9
commit fe794b9
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Showing 3 changed files with 35 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0b6c0bb3f9621b128011bcd5f65047c73afdde3b
+refs/heads/master: 5b0c5c2c0d04c29f85abb485378ba5476c7aeec2
diff --git a/trunk/drivers/mtd/chips/cfi_cmdset_0002.c b/trunk/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -161,6 +161,26 @@ static void fixup_use_write_buffers(struct mtd_info *mtd, void *param)
 	}
 }
 
+/* Atmel chips don't use the same PRI format as AMD chips */
+static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param)
+{
+	struct map_info *map = mtd->priv;
+	struct cfi_private *cfi = map->fldrv_priv;
+	struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
+	struct cfi_pri_atmel atmel_pri;
+
+	memcpy(&atmel_pri, extp, sizeof(atmel_pri));
+	memset(extp + 5, 0, sizeof(*extp) - 5);
+
+	if (atmel_pri.Features & 0x02)
+		extp->EraseSuspend = 2;
+
+	if (atmel_pri.BottomBoot)
+		extp->TopBottom = 2;
+	else
+		extp->TopBottom = 3;
+}
+
 static void fixup_use_secsi(struct mtd_info *mtd, void *param)
 {
 	/* Setup for chips with a secsi area */
@@ -192,6 +212,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
 #if !FORCE_WORD_WRITE
 	{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
 #endif
+	{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
 	{ 0, 0, NULL, NULL }
 };
 static struct cfi_fixup jedec_fixup_table[] = {

diff --git a/trunk/include/linux/mtd/cfi.h b/trunk/include/linux/mtd/cfi.h
@@ -199,6 +199,18 @@ struct cfi_pri_amdstd {
 	uint8_t  TopBottom;
 } __attribute__((packed));
 
+/* Vendor-Specific PRI for Atmel chips (command set 0x0002) */
+
+struct cfi_pri_atmel {
+	uint8_t pri[3];
+	uint8_t MajorVersion;
+	uint8_t MinorVersion;
+	uint8_t Features;
+	uint8_t BottomBoot;
+	uint8_t BurstMode;
+	uint8_t PageMode;
+} __attribute__((packed));
+
 struct cfi_pri_query {
 	uint8_t  NumFields;
 	uint32_t ProtField[1]; /* Not host ordered */
@@ -464,6 +476,7 @@ struct cfi_fixup {
 #define CFI_ID_ANY  0xffff
 
 #define CFI_MFR_AMD 0x0001
+#define CFI_MFR_ATMEL 0x001F
 #define CFI_MFR_ST  0x0020 	/* STMicroelectronics */
 
 void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups);