fix bcm47xx patch (remove duplicate flash chip patch)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1721 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 920 deletions

diff --git a/target/linux/linux-2.4/patches/brcm/001-bcm47xx.patch b/target/linux/linux-2.4/patches/brcm/001-bcm47xx.patch
index 5d162c43d..762676139 100644
--- a/target/linux/linux-2.4/patches/brcm/001-bcm47xx.patch
+++ b/target/linux/linux-2.4/patches/brcm/001-bcm47xx.patch
@@ -12914,926 +12914,6 @@ diff -urN linux-2.4.30/drivers/char/serial.c linux-2.4.30.dev/drivers/char/seria
  	if (doflow)
  		state->flags |= ASYNC_CONS_FLOW;
  	info = &async_sercons;
-diff -urN linux-2.4.30/drivers/mtd/chips/Config.in linux-2.4.30.dev/drivers/mtd/chips/Config.in
---- linux-2.4.30/drivers/mtd/chips/Config.in	2003-06-13 16:51:34.000000000 +0200
-+++ linux-2.4.30.dev/drivers/mtd/chips/Config.in	2005-08-22 01:34:46.435134440 +0200
-@@ -45,6 +45,7 @@
- dep_tristate '  Support for Intel/Sharp flash chips' CONFIG_MTD_CFI_INTELEXT $CONFIG_MTD_GEN_PROBE
- dep_tristate '  Support for AMD/Fujitsu flash chips' CONFIG_MTD_CFI_AMDSTD $CONFIG_MTD_GEN_PROBE
- dep_tristate '  Support for ST (Advanced Architecture) flash chips' CONFIG_MTD_CFI_STAA $CONFIG_MTD_GEN_PROBE
-+dep_tristate '  Support for SST flash chips' CONFIG_MTD_CFI_SSTSTD $CONFIG_MTD_GEN_PROBE
- 
- dep_tristate '  Support for RAM chips in bus mapping' CONFIG_MTD_RAM $CONFIG_MTD
- dep_tristate '  Support for ROM chips in bus mapping' CONFIG_MTD_ROM $CONFIG_MTD
-diff -urN linux-2.4.30/drivers/mtd/chips/Makefile linux-2.4.30.dev/drivers/mtd/chips/Makefile
---- linux-2.4.30/drivers/mtd/chips/Makefile	2003-06-13 16:51:34.000000000 +0200
-+++ linux-2.4.30.dev/drivers/mtd/chips/Makefile	2005-08-22 01:34:46.458130944 +0200
-@@ -18,6 +18,7 @@
- obj-$(CONFIG_MTD_AMDSTD)	+= amd_flash.o 
- obj-$(CONFIG_MTD_CFI)		+= cfi_probe.o
- obj-$(CONFIG_MTD_CFI_STAA)	+= cfi_cmdset_0020.o
-+obj-$(CONFIG_MTD_CFI_SSTSTD)   += cfi_cmdset_0701.o
- obj-$(CONFIG_MTD_CFI_AMDSTD)	+= cfi_cmdset_0002.o
- obj-$(CONFIG_MTD_CFI_INTELEXT)	+= cfi_cmdset_0001.o
- obj-$(CONFIG_MTD_GEN_PROBE)	+= gen_probe.o
-diff -urN linux-2.4.30/drivers/mtd/chips/cfi_cmdset_0701.c linux-2.4.30.dev/drivers/mtd/chips/cfi_cmdset_0701.c
---- linux-2.4.30/drivers/mtd/chips/cfi_cmdset_0701.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30.dev/drivers/mtd/chips/cfi_cmdset_0701.c	2005-08-22 01:34:46.433134744 +0200
-@@ -0,0 +1,855 @@
-+/*
-+ * Common Flash Interface support:
-+ *   SST Standard Vendor Command Set (ID 0x0701)
-+ *
-+ * Copyright (C) 2000 Crossnet Co. <info@crossnet.co.jp>
-+ *
-+ * 2_by_8 routines added by Simon Munton
-+ *
-+ * This code is GPL
-+ *
-+ * $Id: cfi_cmdset_0701.c,v 1.1 2005/03/16 13:50:00 wbx Exp $
-+ *
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <asm/io.h>
-+#include <asm/byteorder.h>
-+
-+#include <linux/errno.h>
-+#include <linux/slab.h>
-+#include <linux/delay.h>
-+#include <linux/interrupt.h>
-+#include <linux/mtd/map.h>
-+#include <linux/mtd/cfi.h>
-+
-+static int cfi_sststd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
-+static int cfi_sststd_write(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
-+static int cfi_sststd_erase_onesize(struct mtd_info *, struct erase_info *);
-+static int cfi_sststd_erase_varsize(struct mtd_info *, struct erase_info *);
-+static void cfi_sststd_sync (struct mtd_info *);
-+static int cfi_sststd_suspend (struct mtd_info *);
-+static void cfi_sststd_resume (struct mtd_info *);
-+
-+static void cfi_sststd_destroy(struct mtd_info *);
-+
-+struct mtd_info *cfi_cmdset_0701(struct map_info *, int);
-+static struct mtd_info *cfi_sststd_setup (struct map_info *);
-+
-+
-+static struct mtd_chip_driver cfi_sststd_chipdrv = {
-+	probe: NULL, /* Not usable directly */
-+	destroy: cfi_sststd_destroy,
-+	name: "cfi_cmdset_0701",
-+	module: THIS_MODULE
-+};
-+
-+struct mtd_info *cfi_cmdset_0701(struct map_info *map, int primary)
-+{
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	int ofs_factor = cfi->interleave * cfi->device_type;
-+	int i;
-+	__u8 major, minor;
-+	__u32 base = cfi->chips[0].start;
-+
-+	if (cfi->cfi_mode==1){
-+		__u16 adr = primary?cfi->cfiq->P_ADR:cfi->cfiq->A_ADR;
-+
-+		cfi_send_gen_cmd(0xAA, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x55, 0x2AAA, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x98, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		
-+		major = cfi_read_query(map, base + (adr+3)*ofs_factor);
-+		minor = cfi_read_query(map, base + (adr+4)*ofs_factor);
-+		
-+		printk(" SST Query Table v%c.%c at 0x%4.4X\n",
-+		       major, minor, adr);
-+		cfi_send_gen_cmd(0xf0, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		
-+		cfi_send_gen_cmd(0xAA, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x55, 0x2AAA, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x90, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		cfi->mfr = cfi_read_query(map, base);
-+		cfi->id = cfi_read_query(map, base + ofs_factor);
-+
-+		cfi_send_gen_cmd(0xAA, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x55, 0x2AAA, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x98, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		
-+		switch (cfi->device_type) {
-+		case CFI_DEVICETYPE_X16:
-+			cfi->addr_unlock1 = 0x5555;
-+			cfi->addr_unlock2 = 0x2AAA;
-+			break;
-+		default:
-+			printk(KERN_NOTICE "Eep. Unknown cfi_cmdset_0701 device type %d\n", cfi->device_type);
-+			return NULL;
-+		}
-+	} /* CFI mode */
-+
-+	for (i=0; i< cfi->numchips; i++) {
-+		cfi->chips[i].word_write_time = 1<<cfi->cfiq->WordWriteTimeoutTyp;
-+		cfi->chips[i].buffer_write_time = 1<<cfi->cfiq->BufWriteTimeoutTyp;
-+		cfi->chips[i].erase_time = 1<<cfi->cfiq->BlockEraseTimeoutTyp;
-+	}		
-+	
-+	map->fldrv = &cfi_sststd_chipdrv;
-+	MOD_INC_USE_COUNT;
-+
-+	cfi_send_gen_cmd(0xf0, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+	return cfi_sststd_setup(map);
-+}
-+
-+static struct mtd_info *cfi_sststd_setup(struct map_info *map)
-+{
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	struct mtd_info *mtd;
-+	unsigned long devsize = (1<<cfi->cfiq->DevSize) * cfi->interleave;
-+
-+	mtd = kmalloc(sizeof(*mtd), GFP_KERNEL);
-+	printk("number of %s chips: %d\n", (cfi->cfi_mode)?"JEDEC":"CFI",cfi->numchips);
-+
-+	if (!mtd) {
-+	  printk("Failed to allocate memory for MTD device\n");
-+	  kfree(cfi->cmdset_priv);
-+	  return NULL;
-+	}
-+
-+	memset(mtd, 0, sizeof(*mtd));
-+	mtd->priv = map;
-+	mtd->type = MTD_NORFLASH;
-+	/* Also select the correct geometry setup too */ 
-+	mtd->size = devsize * cfi->numchips;
-+	
-+	if (cfi->cfiq->NumEraseRegions == 1) {
-+		/* No need to muck about with multiple erase sizes */
-+		mtd->erasesize = ((cfi->cfiq->EraseRegionInfo[0] >> 8) & ~0xff) * cfi->interleave;
-+	} else {
-+		unsigned long offset = 0;
-+		int i,j;
-+
-+		mtd->numeraseregions = cfi->cfiq->NumEraseRegions * cfi->numchips;
-+		mtd->eraseregions = kmalloc(sizeof(struct mtd_erase_region_info) * mtd->numeraseregions, GFP_KERNEL);
-+		if (!mtd->eraseregions) { 
-+			printk("Failed to allocate memory for MTD erase region info\n");
-+			kfree(cfi->cmdset_priv);
-+			return NULL;
-+		}
-+			
-+		for (i=0; i<cfi->cfiq->NumEraseRegions; i++) {
-+			unsigned long ernum, ersize;
-+			ersize = ((cfi->cfiq->EraseRegionInfo[i] >> 8) & ~0xff) * cfi->interleave;
-+			ernum = (cfi->cfiq->EraseRegionInfo[i] & 0xffff) + 1;
-+			
-+			if (mtd->erasesize < ersize) {
-+				mtd->erasesize = ersize;
-+			}
-+			for (j=0; j<cfi->numchips; j++) {
-+				mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].offset = (j*devsize)+offset;
-+				mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].erasesize = ersize;
-+				mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].numblocks = ernum;
-+			}
-+			offset += (ersize * ernum);
-+		}
-+
-+		// debug
-+		for (i=0; i<mtd->numeraseregions;i++){
-+			printk("%d: offset=0x%x,size=0x%x,blocks=%d\n",
-+			       i,mtd->eraseregions[i].offset,
-+			       mtd->eraseregions[i].erasesize,
-+			       mtd->eraseregions[i].numblocks);
-+		}
-+	}
-+
-+	switch (CFIDEV_BUSWIDTH)
-+	{
-+	case 1:
-+	case 2:
-+	case 4:
-+		if (mtd->numeraseregions > 1)
-+			mtd->erase = cfi_sststd_erase_varsize;
-+		else
-+			mtd->erase = cfi_sststd_erase_onesize;
-+		mtd->read = cfi_sststd_read;
-+		mtd->write = cfi_sststd_write;
-+		break;
-+
-+	default:
-+	        printk("Unsupported buswidth\n");
-+		kfree(mtd);
-+		kfree(cfi->cmdset_priv);
-+		return NULL;
-+		break;
-+	}
-+	mtd->sync = cfi_sststd_sync;
-+	mtd->suspend = cfi_sststd_suspend;
-+	mtd->resume = cfi_sststd_resume;
-+	mtd->flags = MTD_CAP_NORFLASH;
-+	map->fldrv = &cfi_sststd_chipdrv;
-+	mtd->name = map->name;
-+	MOD_INC_USE_COUNT;
-+	return mtd;
-+}
-+
-+static inline int do_read_onechip(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf)
-+{
-+	DECLARE_WAITQUEUE(wait, current);
-+	unsigned long timeo = jiffies + HZ;
-+
-+ retry:
-+	cfi_spin_lock(chip->mutex);
-+
-+	if (chip->state != FL_READY){
-+	        printk("Waiting for chip to read, status = %d\n", chip->state);
-+		set_current_state(TASK_UNINTERRUPTIBLE);
-+		add_wait_queue(&chip->wq, &wait);
-+                
-+		cfi_spin_unlock(chip->mutex);
-+
-+		schedule();
-+		remove_wait_queue(&chip->wq, &wait);
-+		timeo = jiffies + HZ;
-+
-+		goto retry;
-+	}	
-+
-+	adr += chip->start;
-+
-+	chip->state = FL_READY;
-+
-+	map->copy_from(map, buf, adr, len);
-+
-+	wake_up(&chip->wq);
-+	cfi_spin_unlock(chip->mutex);
-+
-+	return 0;
-+}
-+
-+static int cfi_sststd_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	unsigned long ofs;
-+	int chipnum;
-+	int ret = 0;
-+
-+	/* ofs: offset within the first chip that the first read should start */
-+
-+	chipnum = (from >> cfi->chipshift);
-+	ofs = from - (chipnum <<  cfi->chipshift);
-+
-+
-+	*retlen = 0;
-+
-+	while (len) {
-+		unsigned long thislen;
-+
-+		if (chipnum >= cfi->numchips)
-+			break;
-+
-+		if ((len + ofs -1) >> cfi->chipshift)
-+			thislen = (1<<cfi->chipshift) - ofs;
-+		else
-+			thislen = len;
-+
-+		ret = do_read_onechip(map, &cfi->chips[chipnum], ofs, thislen, buf);
-+		if (ret)
-+			break;
-+
-+		*retlen += thislen;
-+		len -= thislen;
-+		buf += thislen;
-+
-+		ofs = 0;
-+		chipnum++;
-+	}
-+	return ret;
-+}
-+
-+static int do_write_oneword(struct map_info *map, struct flchip *chip, unsigned long adr, __u32 datum, int fast)
-+{
-+	unsigned long timeo = jiffies + HZ;
-+	unsigned int Last[4];
-+	unsigned long Count = 0;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	DECLARE_WAITQUEUE(wait, current);
-+	int ret = 0;
-+
-+ retry:
-+	cfi_spin_lock(chip->mutex);
-+
-+	if (chip->state != FL_READY){
-+	        printk("Waiting for chip to write, status = %d\n", chip->state);
-+		set_current_state(TASK_UNINTERRUPTIBLE);
-+		add_wait_queue(&chip->wq, &wait);
-+                
-+		cfi_spin_unlock(chip->mutex);
-+
-+		schedule();
-+		remove_wait_queue(&chip->wq, &wait);
-+		printk("Wake up to write:\n");
-+		timeo = jiffies + HZ;
-+
-+		goto retry;
-+	}	
-+
-+	chip->state = FL_WRITING;
-+
-+	adr += chip->start;
-+	ENABLE_VPP(map);
-+    cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+    cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+    cfi_send_gen_cmd(0xA0, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+
-+	cfi_write(map, datum, adr);
-+
-+	cfi_spin_unlock(chip->mutex);
-+	cfi_udelay(chip->word_write_time);
-+	cfi_spin_lock(chip->mutex);
-+
-+	Last[0] = cfi_read(map, adr);
-+	//	printk("Last[0] is %x\n", Last[0]);
-+	Last[1] = cfi_read(map, adr);
-+	//	printk("Last[1] is %x\n", Last[1]);
-+	Last[2] = cfi_read(map, adr);
-+	//	printk("Last[2] is %x\n", Last[2]);
-+
-+	for (Count = 3; Last[(Count - 1) % 4] != Last[(Count - 2) % 4] && Count < 10000; Count++){
-+		cfi_spin_unlock(chip->mutex);
-+		cfi_udelay(10);
-+		cfi_spin_lock(chip->mutex);
-+		
-+	        Last[Count % 4] = cfi_read(map, adr);
-+		//		printk("Last[%d%%4] is %x\n", Count, Last[Count%4]);
-+	}
-+	
-+	if (Last[(Count - 1) % 4] != datum){
-+		printk("Last[%ld] is %x, datum is %x\n",(Count - 1) % 4,Last[(Count - 1) % 4],datum);
-+	        cfi_send_gen_cmd(0xF0, 0, chip->start, map, cfi, cfi->device_type, NULL);
-+		DISABLE_VPP(map);
-+		ret = -EIO;
-+	}       
-+	DISABLE_VPP(map);
-+	chip->state = FL_READY;
-+	wake_up(&chip->wq);
-+	cfi_spin_unlock(chip->mutex);
-+	
-+	return ret;
-+}
-+
-+static int cfi_sststd_write (struct mtd_info *mtd, loff_t to , size_t len, size_t *retlen, const u_char *buf)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	int ret = 0;
-+	int chipnum;
-+	unsigned long ofs, chipstart;
-+
-+	*retlen = 0;
-+	if (!len)
-+		return 0;
-+
-+	chipnum = to >> cfi->chipshift;
-+	ofs = to  - (chipnum << cfi->chipshift);
-+	chipstart = cfi->chips[chipnum].start;
-+
-+	/* If it's not bus-aligned, do the first byte write */
-+	if (ofs & (CFIDEV_BUSWIDTH-1)) {
-+		unsigned long bus_ofs = ofs & ~(CFIDEV_BUSWIDTH-1);
-+		int i = ofs - bus_ofs;
-+		int n = 0;
-+		u_char tmp_buf[4];
-+		__u32 datum;
-+
-+		map->copy_from(map, tmp_buf, bus_ofs + cfi->chips[chipnum].start, CFIDEV_BUSWIDTH);
-+		while (len && i < CFIDEV_BUSWIDTH)
-+			tmp_buf[i++] = buf[n++], len--;
-+
-+		if (cfi_buswidth_is_2()) {
-+			datum = *(__u16*)tmp_buf;
-+		} else if (cfi_buswidth_is_4()) {
-+			datum = *(__u32*)tmp_buf;
-+		} else {
-+			return -EINVAL;  /* should never happen, but be safe */
-+		}
-+
-+		ret = do_write_oneword(map, &cfi->chips[chipnum], 
-+				bus_ofs, datum, 0);
-+		if (ret) 
-+			return ret;
-+		
-+		ofs += n;
-+		buf += n;
-+		(*retlen) += n;
-+
-+		if (ofs >> cfi->chipshift) {
-+			chipnum ++; 
-+			ofs = 0;
-+			if (chipnum == cfi->numchips)
-+				return 0;
-+		}
-+	}
-+	
-+	/* We are now aligned, write as much as possible */
-+	while(len >= CFIDEV_BUSWIDTH) {
-+		__u32 datum;
-+
-+		if (cfi_buswidth_is_1()) {
-+			datum = *(__u8*)buf;
-+		} else if (cfi_buswidth_is_2()) {
-+			datum = *(__u16*)buf;
-+		} else if (cfi_buswidth_is_4()) {
-+			datum = *(__u32*)buf;
-+		} else {
-+			return -EINVAL;
-+		}
-+		ret = do_write_oneword(map, &cfi->chips[chipnum],
-+				       ofs, datum, cfi->fast_prog);
-+		if (ret) {
-+			return ret;
-+		}
-+
-+		ofs += CFIDEV_BUSWIDTH;
-+		buf += CFIDEV_BUSWIDTH;
-+		(*retlen) += CFIDEV_BUSWIDTH;
-+		len -= CFIDEV_BUSWIDTH;
-+
-+		if (ofs >> cfi->chipshift) {
-+			chipnum ++; 
-+			ofs = 0;
-+			if (chipnum == cfi->numchips)
-+				return 0;
-+			chipstart = cfi->chips[chipnum].start;
-+		}
-+	}
-+
-+	if (len & (CFIDEV_BUSWIDTH-1)) {
-+		int i = 0, n = 0;
-+		u_char tmp_buf[4];
-+		__u32 datum;
-+
-+		map->copy_from(map, tmp_buf, ofs + cfi->chips[chipnum].start, CFIDEV_BUSWIDTH);
-+		while (len--)
-+			tmp_buf[i++] = buf[n++];
-+
-+		if (cfi_buswidth_is_2()) {
-+			datum = *(__u16*)tmp_buf;
-+		} else if (cfi_buswidth_is_4()) {
-+			datum = *(__u32*)tmp_buf;
-+		} else {
-+			return -EINVAL;  /* should never happen, but be safe */
-+		}
-+
-+		ret = do_write_oneword(map, &cfi->chips[chipnum], 
-+				ofs, datum, 0);
-+		if (ret) 
-+			return ret;
-+		
-+		(*retlen) += n;
-+	}
-+
-+	return 0;
-+}
-+
-+static inline int do_erase_oneblock(struct map_info *map, struct flchip *chip, unsigned long adr)
-+{
-+	unsigned int status;
-+	unsigned long timeo = jiffies + HZ;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	unsigned int rdy_mask;
-+	DECLARE_WAITQUEUE(wait, current);
-+
-+ retry:
-+	cfi_spin_lock(chip->mutex);
-+
-+	if (chip->state != FL_READY){
-+		set_current_state(TASK_UNINTERRUPTIBLE);
-+		add_wait_queue(&chip->wq, &wait);
-+                
-+		cfi_spin_unlock(chip->mutex);
-+
-+		schedule();
-+		remove_wait_queue(&chip->wq, &wait);
-+		timeo = jiffies + HZ;
-+
-+		goto retry;
-+	}	
-+
-+	chip->state = FL_ERASING;
-+
-+	adr += chip->start;
-+	ENABLE_VPP(map);
-+	cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+	cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+	cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+	cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+	cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X16, NULL);
-+	cfi_write(map, CMD(0x30), adr);
-+	
-+	timeo = jiffies + (HZ*20);
-+
-+	cfi_spin_unlock(chip->mutex);
-+	schedule_timeout(HZ);
-+	cfi_spin_lock(chip->mutex);
-+	
-+	rdy_mask = CMD(0x80);
-+
-+	/* Once the state machine's known to be working I'll do that */
-+
-+	while ( ( (status = cfi_read(map,adr)) & rdy_mask ) != rdy_mask ) {
-+		static int z=0;
-+
-+		if (chip->state != FL_ERASING) {
-+			/* Someone's suspended the erase. Sleep */
-+			set_current_state(TASK_UNINTERRUPTIBLE);
-+			add_wait_queue(&chip->wq, &wait);
-+			
-+			cfi_spin_unlock(chip->mutex);
-+			printk("erase suspended. Sleeping\n");
-+			
-+			schedule();
-+			remove_wait_queue(&chip->wq, &wait);
-+			timeo = jiffies + (HZ*2); 
-+			cfi_spin_lock(chip->mutex);
-+			continue;
-+		}
-+
-+		/* OK Still waiting */
-+		if (time_after(jiffies, timeo)) {
-+			chip->state = FL_READY;
-+			cfi_spin_unlock(chip->mutex);
-+			printk("waiting for erase to complete timed out.");
-+			DISABLE_VPP(map);
-+			return -EIO;
-+		}
-+		
-+		/* Latency issues. Drop the lock, wait a while and retry */
-+		cfi_spin_unlock(chip->mutex);
-+
-+		z++;
-+		if ( 0 && !(z % 100 )) 
-+			printk("chip not ready yet after erase. looping\n");
-+
-+		cfi_udelay(1);
-+		
-+		cfi_spin_lock(chip->mutex);
-+		continue;
-+	}
-+	
-+	/* Done and happy. */
-+	DISABLE_VPP(map);
-+	chip->state = FL_READY;
-+	wake_up(&chip->wq);
-+	cfi_spin_unlock(chip->mutex);
-+	return 0;
-+}
-+
-+static int cfi_sststd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	unsigned long adr, len;
-+	int chipnum, ret = 0;
-+	int i, first;
-+	struct mtd_erase_region_info *regions = mtd->eraseregions;
-+
-+	if (instr->addr > mtd->size)
-+		return -EINVAL;
-+
-+	if ((instr->len + instr->addr) > mtd->size)
-+		return -EINVAL;
-+
-+	/* Check that both start and end of the requested erase are
-+	 * aligned with the erasesize at the appropriate addresses.
-+	 */
-+
-+	i = 0;
-+
-+	/* Skip all erase regions which are ended before the start of 
-+	   the requested erase. Actually, to save on the calculations,
-+	   we skip to the first erase region which starts after the
-+	   start of the requested erase, and then go back one.
-+	*/
-+	
-+	while (i < mtd->numeraseregions && instr->addr >= regions[i].offset)
-+	       i++;
-+	i--;
-+
-+	/* OK, now i is pointing at the erase region in which this 
-+	   erase request starts. Check the start of the requested
-+	   erase range is aligned with the erase size which is in
-+	   effect here.
-+	*/
-+
-+	if (instr->addr & (regions[i].erasesize-1))
-+		return -EINVAL;
-+
-+	/* Remember the erase region we start on */
-+	first = i;
-+
-+	/* Next, check that the end of the requested erase is aligned
-+	 * with the erase region at that address.
-+	 */
-+
-+	while (i<mtd->numeraseregions && (instr->addr + instr->len) >= regions[i].offset)
-+		i++;
-+
-+	/* As before, drop back one to point at the region in which
-+	   the address actually falls
-+	*/
-+	i--;
-+	
-+	if ((instr->addr + instr->len) & (regions[i].erasesize-1))
-+		return -EINVAL;
-+	
-+	chipnum = instr->addr >> cfi->chipshift;
-+	adr = instr->addr - (chipnum << cfi->chipshift);
-+	len = instr->len;
-+
-+	i=first;
-+
-+	while(len) {
-+		ret = do_erase_oneblock(map, &cfi->chips[chipnum], adr);
-+
-+		if (ret)
-+			return ret;
-+
-+		adr += regions[i].erasesize;
-+		len -= regions[i].erasesize;
-+
-+		if (adr % (1<< cfi->chipshift) == ((regions[i].offset + (regions[i].erasesize * regions[i].numblocks)) %( 1<< cfi->chipshift)))
-+			i++;
-+
-+		if (adr >> cfi->chipshift) {
-+			adr = 0;
-+			chipnum++;
-+			
-+			if (chipnum >= cfi->numchips)
-+			break;
-+		}
-+	}
-+
-+	instr->state = MTD_ERASE_DONE;
-+	if (instr->callback)
-+		instr->callback(instr);
-+	
-+	return 0;
-+}
-+
-+static int cfi_sststd_erase_onesize(struct mtd_info *mtd, struct erase_info *instr)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	unsigned long adr, len;
-+	int chipnum, ret = 0;
-+
-+	if (instr->addr & (mtd->erasesize - 1))
-+		return -EINVAL;
-+
-+	if (instr->len & (mtd->erasesize -1))
-+		return -EINVAL;
-+
-+	if ((instr->len + instr->addr) > mtd->size)
-+		return -EINVAL;
-+
-+	chipnum = instr->addr >> cfi->chipshift;
-+	adr = instr->addr - (chipnum << cfi->chipshift);
-+	len = instr->len;
-+
-+	while(len) {
-+		ret = do_erase_oneblock(map, &cfi->chips[chipnum], adr);
-+
-+		if (ret)
-+			return ret;
-+
-+		adr += mtd->erasesize;
-+		len -= mtd->erasesize;
-+
-+		if (adr >> cfi->chipshift) {
-+			adr = 0;
-+			chipnum++;
-+			
-+			if (chipnum >= cfi->numchips)
-+			break;
-+		}
-+	}
-+		
-+	instr->state = MTD_ERASE_DONE;
-+	if (instr->callback)
-+		instr->callback(instr);
-+	
-+	return 0;
-+}
-+
-+static void cfi_sststd_sync (struct mtd_info *mtd)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	int i;
-+	struct flchip *chip;
-+	int ret = 0;
-+	DECLARE_WAITQUEUE(wait, current);
-+
-+	for (i=0; !ret && i<cfi->numchips; i++) {
-+		chip = &cfi->chips[i];
-+
-+	retry:
-+		cfi_spin_lock(chip->mutex);
-+
-+		switch(chip->state) {
-+		case FL_READY:
-+		case FL_STATUS:
-+		case FL_CFI_QUERY:
-+		case FL_JEDEC_QUERY:
-+			chip->oldstate = chip->state;
-+			chip->state = FL_SYNCING;
-+			/* No need to wake_up() on this state change - 
-+			 * as the whole point is that nobody can do anything
-+			 * with the chip now anyway.
-+			 */
-+		case FL_SYNCING:
-+			cfi_spin_unlock(chip->mutex);
-+			break;
-+
-+		default:
-+			/* Not an idle state */
-+			add_wait_queue(&chip->wq, &wait);
-+			
-+			cfi_spin_unlock(chip->mutex);
-+
-+			schedule();
-+
-+		        remove_wait_queue(&chip->wq, &wait);
-+			
-+			goto retry;
-+		}
-+	}
-+
-+	/* Unlock the chips again */
-+
-+	for (i--; i >=0; i--) {
-+		chip = &cfi->chips[i];
-+
-+		cfi_spin_lock(chip->mutex);
-+		
-+		if (chip->state == FL_SYNCING) {
-+			chip->state = chip->oldstate;
-+			wake_up(&chip->wq);
-+		}
-+		cfi_spin_unlock(chip->mutex);
-+	}
-+}
-+
-+
-+static int cfi_sststd_suspend(struct mtd_info *mtd)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	int i;
-+	struct flchip *chip;
-+	int ret = 0;
-+//printk("suspend\n");
-+
-+	for (i=0; !ret && i<cfi->numchips; i++) {
-+		chip = &cfi->chips[i];
-+
-+		cfi_spin_lock(chip->mutex);
-+
-+		switch(chip->state) {
-+		case FL_READY:
-+		case FL_STATUS:
-+		case FL_CFI_QUERY:
-+		case FL_JEDEC_QUERY:
-+			chip->oldstate = chip->state;
-+			chip->state = FL_PM_SUSPENDED;
-+			/* No need to wake_up() on this state change - 
-+			 * as the whole point is that nobody can do anything
-+			 * with the chip now anyway.
-+			 */
-+		case FL_PM_SUSPENDED:
-+			break;
-+
-+		default:
-+			ret = -EAGAIN;
-+			break;
-+		}
-+		cfi_spin_unlock(chip->mutex);
-+	}
-+
-+	/* Unlock the chips again */
-+
-+	if (ret) {
-+    		for (i--; i >=0; i--) {
-+			chip = &cfi->chips[i];
-+
-+			cfi_spin_lock(chip->mutex);
-+		
-+			if (chip->state == FL_PM_SUSPENDED) {
-+				chip->state = chip->oldstate;
-+				wake_up(&chip->wq);
-+			}
-+			cfi_spin_unlock(chip->mutex);
-+		}
-+	}
-+	
-+	return ret;
-+}
-+
-+static void cfi_sststd_resume(struct mtd_info *mtd)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	int i;
-+	struct flchip *chip;
-+//printk("resume\n");
-+
-+	for (i=0; i<cfi->numchips; i++) {
-+	
-+		chip = &cfi->chips[i];
-+
-+		cfi_spin_lock(chip->mutex);
-+		
-+		if (chip->state == FL_PM_SUSPENDED) {
-+			chip->state = FL_READY;
-+			cfi_write(map, CMD(0xF0), chip->start);
-+			wake_up(&chip->wq);
-+		}
-+		else
-+			printk("Argh. Chip not in PM_SUSPENDED state upon resume()\n");
-+
-+		cfi_spin_unlock(chip->mutex);
-+	}
-+}
-+
-+static void cfi_sststd_destroy(struct mtd_info *mtd)
-+{
-+	struct map_info *map = mtd->priv;
-+	struct cfi_private *cfi = map->fldrv_priv;
-+	kfree(cfi->cmdset_priv);
-+	kfree(cfi);
-+}
-+
-+#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
-+#define cfi_sststd_init init_module
-+#define cfi_sststd_exit cleanup_module
-+#endif
-+
-+static char im_name[]="cfi_cmdset_0701";
-+
-+mod_init_t cfi_sststd_init(void)
-+{
-+	inter_module_register(im_name, THIS_MODULE, &cfi_cmdset_0701);
-+	return 0;
-+}
-+
-+mod_exit_t cfi_sststd_exit(void)
-+{
-+	inter_module_unregister(im_name);
-+}
-+
-+module_init(cfi_sststd_init);
-+module_exit(cfi_sststd_exit);
-+
-diff -urN linux-2.4.30/drivers/mtd/chips/cfi_probe.c linux-2.4.30.dev/drivers/mtd/chips/cfi_probe.c
---- linux-2.4.30/drivers/mtd/chips/cfi_probe.c	2003-06-13 16:51:34.000000000 +0200
-+++ linux-2.4.30.dev/drivers/mtd/chips/cfi_probe.c	2005-08-22 01:34:46.434134592 +0200
-@@ -67,8 +67,15 @@
- 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
- 	cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
- 
--	if (!qry_present(map,base,cfi))
--		return 0;
-+	if (!qry_present(map,base,cfi)) {
-+		/* rather broken SST cfi probe (requires SST unlock) */
-+		cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0xAA, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x55, 0x2AAA, base, map, cfi, cfi->device_type, NULL);
-+		cfi_send_gen_cmd(0x98, 0x5555, base, map, cfi, cfi->device_type, NULL);
-+		if (!qry_present(map,base,cfi))
-+			return 0;
-+	}
- 
- 	if (!cfi->numchips) {
- 		/* This is the first time we're called. Set up the CFI 
-diff -urN linux-2.4.30/drivers/mtd/chips/gen_probe.c linux-2.4.30.dev/drivers/mtd/chips/gen_probe.c
---- linux-2.4.30/drivers/mtd/chips/gen_probe.c	2003-08-25 13:44:42.000000000 +0200
-+++ linux-2.4.30.dev/drivers/mtd/chips/gen_probe.c	2005-08-22 01:34:46.436134288 +0200
-@@ -332,9 +332,13 @@
- 		return cfi_cmdset_0002(map, primary);
- #endif
- #ifdef CONFIG_MTD_CFI_STAA
--        case 0x0020:
-+	case 0x0020:
- 		return cfi_cmdset_0020(map, primary);
- #endif
-+#ifdef CONFIG_MTD_CFI_SSTSTD
-+	case 0x0701:
-+		return cfi_cmdset_0701(map, primary);
-+#endif
- 	}
- 
- 	return cfi_cmdset_unknown(map, primary);
 diff -urN linux-2.4.30/drivers/mtd/maps/Config.in linux-2.4.30.dev/drivers/mtd/maps/Config.in
 --- linux-2.4.30/drivers/mtd/maps/Config.in	2005-08-22 01:29:09.605340352 +0200
 +++ linux-2.4.30.dev/drivers/mtd/maps/Config.in	2005-08-22 01:34:46.460130640 +0200