patch-2.4.6 linux/drivers/mtd/chips/cfi_jedec.c

• Lines: 290
• Date: Tue Jun 12 10:30:27 2001
• Orig file: v2.4.5/linux/drivers/mtd/chips/cfi_jedec.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.5/linux/drivers/mtd/chips/cfi_jedec.c linux/drivers/mtd/chips/cfi_jedec.c
@@ -0,0 +1,289 @@
+/* $Id: cfi_jedec.c,v 1.5 2001/06/02 14:52:23 dwmw2 Exp $ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <asm/byteorder.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+
+#include <linux/mtd/map.h>
+#include <linux/mtd/cfi.h>
+
+/* Manufacturers */
+#define MANUFACTURER_AMD	0x0001
+#define MANUFACTURER_FUJITSU	0x0004
+#define MANUFACTURER_ATMEL	0x001f
+#define MANUFACTURER_ST		0x0020
+#define MANUFACTURER_SST	0x00BF
+#define MANUFACTURER_TOSHIBA	0x0098
+
+/* AMD */
+#define AM29F800BB	0x2258
+#define AM29F800BT	0x22D6
+#define AM29LV800BB	0x225B
+#define AM29LV800BT	0x22DA
+#define AM29LV160DT	0x22C4
+#define AM29LV160DB	0x2249
+
+/* Atmel */
+#define AT49BV16X4	0x00c0
+#define AT49BV16X4T	0x00c2
+
+/* Fujitsu */
+#define MBM29LV160TE	0x22C4
+#define MBM29LV160BE	0x2249
+
+/* ST - www.st.com */
+#define M29W800T	0x00D7
+#define M29W160DT	0x22C4
+#define M29W160DB	0x2249
+
+/* SST */
+#define SST39LF800	0x2781
+#define SST39LF160	0x2782
+
+/* Toshiba */
+#define TC58FVT160	0x00C2
+#define TC58FVB160	0x0043
+
+
+struct amd_flash_info {
+	const __u16 mfr_id;
+	const __u16 dev_id;
+	const char *name;
+	const int DevSize;
+	const int InterfaceDesc;
+	const int NumEraseRegions;
+	const ulong regions[4];
+};
+
+#define ERASEINFO(size,blocks) (size<<8)|(blocks-1)
+
+#define SIZE_1MiB 20
+#define SIZE_2MiB 21
+#define SIZE_4MiB 22
+
+static const struct amd_flash_info jedec_table[] = {
+	{
+		mfr_id: MANUFACTURER_AMD,
+		dev_id: AM29LV160DT,
+		name: "AMD AM29LV160DT",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,31),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_AMD,
+		dev_id: AM29LV160DB,
+		name: "AMD AM29LV160DB",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x04000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x10000,31)
+		}
+	}, {
+		mfr_id: MANUFACTURER_TOSHIBA,
+		dev_id: TC58FVT160,
+		name: "Toshiba TC58FVT160",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,31),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_FUJITSU,
+		dev_id: MBM29LV160TE,
+		name: "Fujitsu MBM29LV160TE",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,31),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_TOSHIBA,
+		dev_id: TC58FVB160,
+		name: "Toshiba TC58FVB160",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x04000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x10000,31)
+		}
+	}, {
+		mfr_id: MANUFACTURER_FUJITSU,
+		dev_id: MBM29LV160BE,
+		name: "Fujitsu MBM29LV160BE",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x04000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x10000,31)
+		}
+	}, {
+		mfr_id: MANUFACTURER_AMD,
+		dev_id: AM29LV800BB,
+		name: "AMD AM29LV800BB",
+		DevSize: SIZE_1MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x04000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x10000,15),
+		}
+	}, {
+		mfr_id: MANUFACTURER_AMD,
+		dev_id: AM29F800BB,
+		name: "AMD AM29F800BB",
+		DevSize: SIZE_1MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x04000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x10000,15),
+		}
+	}, {
+		mfr_id: MANUFACTURER_AMD,
+		dev_id: AM29LV800BT,
+		name: "AMD AM29LV800BT",
+		DevSize: SIZE_1MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,15),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_AMD,
+		dev_id: AM29F800BT,
+		name: "AMD AM29F800BT",
+		DevSize: SIZE_1MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,15),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_AMD,
+		dev_id: AM29LV800BB,
+		name: "AMD AM29LV800BB",
+		DevSize: SIZE_1MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,15),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_ST,
+		dev_id: M29W800T,
+		name: "ST M29W800T",
+		DevSize: SIZE_1MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,15),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_ST,
+		dev_id: M29W160DT,
+		name: "ST M29W160DT",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x10000,31),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x04000,1)
+		}
+	}, {
+		mfr_id: MANUFACTURER_ST,
+		dev_id: M29W160DB,
+		name: "ST M29W160DB",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 4,
+		regions: {ERASEINFO(0x04000,1),
+			  ERASEINFO(0x02000,2),
+			  ERASEINFO(0x08000,1),
+			  ERASEINFO(0x10000,31)
+		}
+	}, {
+		mfr_id: MANUFACTURER_ATMEL,
+		dev_id: AT49BV16X4,
+		name: "Atmel AT49BV16X4",
+		DevSize: SIZE_2MiB,
+		NumEraseRegions: 3,
+		regions: {ERASEINFO(0x02000,8),
+			  ERASEINFO(0x08000,2),
+			  ERASEINFO(0x10000,30)
+		}
+	}, {
+                mfr_id: MANUFACTURER_ATMEL,
+                dev_id: AT49BV16X4T,
+                name: "Atmel AT49BV16X4T",
+                DevSize: SIZE_2MiB,
+                NumEraseRegions: 3,
+                regions: {ERASEINFO(0x10000,30),
+                          ERASEINFO(0x08000,2),
+			  ERASEINFO(0x02000,8)
+                }
+        }, {
+		0
+	} 
+};
+
+int cfi_jedec_lookup(int index, int mfr_id, int dev_id)
+{
+  	if (index>=0){
+		if (jedec_table[index].mfr_id == mfr_id &&
+		    jedec_table[index].dev_id == dev_id) return index;
+  	}
+  	else{
+		for (index=0; jedec_table[index].mfr_id; index++){
+		    if (jedec_table[index].mfr_id == mfr_id &&
+		        jedec_table[index].dev_id == dev_id) return index;
+		}
+  	}
+	return -1;
+}
+
+int cfi_jedec_setup(struct cfi_private *p_cfi, int index)
+{
+int i,num_erase_regions;
+
+	printk("Found: %s\n",jedec_table[index].name);
+
+	num_erase_regions = jedec_table[index].NumEraseRegions;
+	
+	p_cfi->cfiq = kmalloc(sizeof(struct cfi_ident) + num_erase_regions * 4, GFP_KERNEL);
+	if (!p_cfi->cfiq) {
+		//xx printk(KERN_WARNING "%s: kmalloc failed for CFI ident structure\n", map->name);
+		return -1;
+	}
+
+	memset(p_cfi->cfiq,0,sizeof(struct cfi_ident));	
+	
+	p_cfi->cfiq->P_ID = P_ID_AMD_STD;
+	p_cfi->cfiq->NumEraseRegions = jedec_table[index].NumEraseRegions;
+	p_cfi->cfiq->DevSize = jedec_table[index].DevSize;
+
+	for (i=0; i<num_erase_regions; i++){
+		p_cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i];
+	}	
+	return 0; 	/* ok */
+}
+