16 files changed, 81 insertions, 59 deletions

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 677cd53f18c3..42e5ea49e975 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -444,7 +444,7 @@ config MTD_NAND_FSL_UPM
 
 config MTD_NAND_MXC
 	tristate "MXC NAND support"
-	depends on ARCH_MX2 || ARCH_MX3
+	depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3
 	help
 	  This enables the driver for the NAND flash controller on the
 	  MXC processors.
@@ -457,10 +457,10 @@ config MTD_NAND_NOMADIK
 
 config MTD_NAND_SH_FLCTL
 	tristate "Support for NAND on Renesas SuperH FLCTL"
-	depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
+	depends on MTD_NAND && (SUPERH || ARCH_SHMOBILE)
 	help
 	  Several Renesas SuperH CPU has FLCTL. This option enables support
-	  for NAND Flash using FLCTL. This driver support SH7723.
+	  for NAND Flash using FLCTL.
 
 config MTD_NAND_DAVINCI
         tristate "Support NAND on DaVinci SoC"
diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c
index 92c334ff4508..43d46e424040 100644
--- a/drivers/mtd/nand/au1550nd.c
+++ b/drivers/mtd/nand/au1550nd.c
@@ -19,6 +19,7 @@
 #include <asm/io.h>
 
 #include <asm/mach-au1x00/au1xxx.h>
+#include <asm/mach-db1x00/bcsr.h>
 
 /*
  * MTD structure for NAND controller
@@ -475,7 +476,8 @@ static int __init au1xxx_nand_init(void)
 	/* set gpio206 high */
 	au_writel(au_readl(GPIO2_DIR) & ~(1 << 6), GPIO2_DIR);
 
-	boot_swapboot = (au_readl(MEM_STSTAT) & (0x7 << 1)) | ((bcsr->status >> 6) & 0x1);
+	boot_swapboot = (au_readl(MEM_STSTAT) & (0x7 << 1)) | ((bcsr_read(BCSR_STATUS) >> 6) & 0x1);
+
 	switch (boot_swapboot) {
 	case 0:
 	case 2:
diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c
index 087bcd745bb7..c997f98eeb3d 100644
--- a/drivers/mtd/nand/bcm_umi_nand.c
+++ b/drivers/mtd/nand/bcm_umi_nand.c
@@ -18,6 +18,7 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/ioport.h>
 #include <linux/device.h>
@@ -381,7 +382,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
 	if (!r)
 		return -ENXIO;
 
-	/* map physical adress */
+	/* map physical address */
 	bcm_umi_io_base = ioremap(r->start, r->end - r->start + 1);
 
 	if (!bcm_umi_io_base) {
@@ -525,7 +526,7 @@ static int bcm_umi_nand_remove(struct platform_device *pdev)
 	/* Release resources, unregister device */
 	nand_release(board_mtd);
 
-	/* unmap physical adress */
+	/* unmap physical address */
 	iounmap(bcm_umi_io_base);
 
 	/* Free the MTD device structure */
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index c828d9ac7bd7..e5a9f9ccea60 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
+#include <linux/slab.h>
 #include <asm/io.h>
 
 #define CAFE_NAND_CTRL1		0x00
diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c
index 826cacffcefc..6e6495278258 100644
--- a/drivers/mtd/nand/cmx270_nand.c
+++ b/drivers/mtd/nand/cmx270_nand.c
@@ -20,6 +20,7 @@
 
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/slab.h>
 #include <linux/gpio.h>
 
 #include <asm/io.h>
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index fe3eba87de40..76e2dc8e62f7 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -32,6 +32,7 @@
 #include <linux/io.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/slab.h>
 
 #include <mach/nand.h>
 
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index b126cf887476..47067bc98248 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -23,6 +23,7 @@
 #include <linux/delay.h>
 #include <linux/rslib.h>
 #include <linux/moduleparam.h>
+#include <linux/slab.h>
 #include <asm/io.h>
 
 #include <linux/mtd/mtd.h>
diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index 071a60cb4204..4b96296af321 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -21,6 +21,7 @@
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 #include <asm/fsl_lbc.h>
 
 #define FSL_UPM_WAIT_RUN_PATTERN  0x1
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 45dec5770da0..b2900d8406d3 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -507,7 +507,7 @@ static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
 		 * MXC NANDFC can only perform full page+spare or
 		 * spare-only read/write.  When the upper layers
 		 * layers perform a read/write buf operation,
-		 * we will used the saved column adress to index into
+		 * we will used the saved column address to index into
 		 * the full page.
 		 */
 		send_addr(host, 0, page_addr == -1);
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index 40b5658bdbe6..b983cae8c298 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -28,6 +28,7 @@
 #include <linux/mtd/nand_ecc.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/ndfc.h>
+#include <linux/slab.h>
 #include <linux/mtd/mtd.h>
 #include <linux/of_platform.h>
 #include <asm/io.h>
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index 66123419f65d..1f6f741af5da 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -30,6 +30,7 @@
 #include <linux/platform_device.h>
 #include <linux/mtd/partitions.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 #include <mach/nand.h>
 #include <mach/fsmc.h>
 
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 1bb799f0125c..7545568fce47 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -17,6 +17,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #include <plat/dma.h>
 #include <plat/gpmc.h>
@@ -30,12 +31,8 @@
 
 #define	DRIVER_NAME	"omap2-nand"
 
-/* size (4 KiB) for IO mapping */
-#define	NAND_IO_SIZE	SZ_4K
-
 #define	NAND_WP_OFF	0
 #define NAND_WP_BIT	0x00000010
-#define WR_RD_PIN_MONITORING	0x00600000
 
 #define	GPMC_BUF_FULL	0x00000001
 #define	GPMC_BUF_EMPTY	0x00000000
@@ -882,8 +879,6 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 	struct omap_nand_info		*info;
 	struct omap_nand_platform_data	*pdata;
 	int				err;
-	unsigned long 			val;
-
 
 	pdata = pdev->dev.platform_data;
 	if (pdata == NULL) {
@@ -905,28 +900,14 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 	info->gpmc_cs		= pdata->cs;
 	info->gpmc_baseaddr	= pdata->gpmc_baseaddr;
 	info->gpmc_cs_baseaddr	= pdata->gpmc_cs_baseaddr;
+	info->phys_base		= pdata->phys_base;
 
 	info->mtd.priv		= &info->nand;
 	info->mtd.name		= dev_name(&pdev->dev);
 	info->mtd.owner		= THIS_MODULE;
 
-	err = gpmc_cs_request(info->gpmc_cs, NAND_IO_SIZE, &info->phys_base);
-	if (err < 0) {
-		dev_err(&pdev->dev, "Cannot request GPMC CS\n");
-		goto out_free_info;
-	}
-
-	/* Enable RD PIN Monitoring Reg */
-	if (pdata->dev_ready) {
-		val  = gpmc_cs_read_reg(info->gpmc_cs, GPMC_CS_CONFIG1);
-		val |= WR_RD_PIN_MONITORING;
-		gpmc_cs_write_reg(info->gpmc_cs, GPMC_CS_CONFIG1, val);
-	}
-
-	val  = gpmc_cs_read_reg(info->gpmc_cs, GPMC_CS_CONFIG7);
-	val &= ~(0xf << 8);
-	val |=  (0xc & 0xf) << 8;
-	gpmc_cs_write_reg(info->gpmc_cs, GPMC_CS_CONFIG7, val);
+	info->nand.options	|= pdata->devsize ? NAND_BUSWIDTH_16 : 0;
+	info->nand.options	|= NAND_SKIP_BBTSCAN;
 
 	/* NAND write protect off */
 	omap_nand_wp(&info->mtd, NAND_WP_OFF);
@@ -934,7 +915,7 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 	if (!request_mem_region(info->phys_base, NAND_IO_SIZE,
 				pdev->dev.driver->name)) {
 		err = -EBUSY;
-		goto out_free_cs;
+		goto out_free_info;
 	}
 
 	info->nand.IO_ADDR_R = ioremap(info->phys_base, NAND_IO_SIZE);
@@ -963,11 +944,6 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 		info->nand.chip_delay = 50;
 	}
 
-	info->nand.options  |= NAND_SKIP_BBTSCAN;
-	if ((gpmc_cs_read_reg(info->gpmc_cs, GPMC_CS_CONFIG1) & 0x3000)
-								== 0x1000)
-		info->nand.options  |= NAND_BUSWIDTH_16;
-
 	if (use_prefetch) {
 		/* copy the virtual address of nand base for fifo access */
 		info->nand_pref_fifo_add = info->nand.IO_ADDR_R;
@@ -1043,8 +1019,6 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 
 out_release_mem_region:
 	release_mem_region(info->phys_base, NAND_IO_SIZE);
-out_free_cs:
-	gpmc_cs_free(info->gpmc_cs);
 out_free_info:
 	kfree(info);
 
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index f59c07427af3..d60fc5719fef 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -60,7 +60,13 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 	}
 	buf64 = (uint64_t *)buf;
 	while (i < len/8) {
-		uint64_t x;
+		/*
+		 * Since GCC has no proper constraint (PR 43518)
+		 * force x variable to r2/r3 registers as ldrd instruction
+		 * requires first register to be even.
+		 */
+		register uint64_t x asm ("r2");
+
 		asm volatile ("ldrd\t%0, [%1]" : "=&r" (x) : "r" (io_base));
 		buf64[i++] = x;
 	}
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 1a5a0365c983..5d55152162cf 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -21,6 +21,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/io.h>
 #include <linux/irq.h>
+#include <linux/slab.h>
 
 #include <mach/dma.h>
 #include <plat/pxa3xx_nand.h>
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 02bef21f2e4b..34752fce0793 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -1,10 +1,10 @@
 /*
  * SuperH FLCTL nand controller
  *
- * Copyright © 2008 Renesas Solutions Corp.
- * Copyright © 2008 Atom Create Engineering Co., Ltd.
+ * Copyright (c) 2008 Renesas Solutions Corp.
+ * Copyright (c) 2008 Atom Create Engineering Co., Ltd.
  *
- * Based on fsl_elbc_nand.c, Copyright © 2006-2007 Freescale Semiconductor
+ * Based on fsl_elbc_nand.c, Copyright (c) 2006-2007 Freescale Semiconductor
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -26,6 +26,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
@@ -75,6 +76,11 @@ static void start_translation(struct sh_flctl *flctl)
 	writeb(TRSTRT, FLTRCR(flctl));
 }
 
+static void timeout_error(struct sh_flctl *flctl, const char *str)
+{
+	dev_err(&flctl->pdev->dev, "Timeout occured in %s\n", str);
+}
+
 static void wait_completion(struct sh_flctl *flctl)
 {
 	uint32_t timeout = LOOP_TIMEOUT_MAX;
@@ -87,7 +93,7 @@ static void wait_completion(struct sh_flctl *flctl)
 		udelay(1);
 	}
 
-	printk(KERN_ERR "wait_completion(): Timeout occured \n");
+	timeout_error(flctl, __func__);
 	writeb(0x0, FLTRCR(flctl));
 }
 
@@ -100,6 +106,8 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr)
 		addr = page_addr;	/* ERASE1 */
 	} else if (page_addr != -1) {
 		/* SEQIN, READ0, etc.. */
+		if (flctl->chip.options & NAND_BUSWIDTH_16)
+			column >>= 1;
 		if (flctl->page_size) {
 			addr = column & 0x0FFF;
 			addr |= (page_addr & 0xff) << 16;
@@ -132,7 +140,7 @@ static void wait_rfifo_ready(struct sh_flctl *flctl)
 			return;
 		udelay(1);
 	}
-	printk(KERN_ERR "wait_rfifo_ready(): Timeout occured \n");
+	timeout_error(flctl, __func__);
 }
 
 static void wait_wfifo_ready(struct sh_flctl *flctl)
@@ -146,7 +154,7 @@ static void wait_wfifo_ready(struct sh_flctl *flctl)
 			return;
 		udelay(1);
 	}
-	printk(KERN_ERR "wait_wfifo_ready(): Timeout occured \n");
+	timeout_error(flctl, __func__);
 }
 
 static int wait_recfifo_ready(struct sh_flctl *flctl, int sector_number)
@@ -198,7 +206,7 @@ static int wait_recfifo_ready(struct sh_flctl *flctl, int sector_number)
 		writel(0, FL4ECCCR(flctl));
 	}
 
-	printk(KERN_ERR "wait_recfifo_ready(): Timeout occured \n");
+	timeout_error(flctl, __func__);
 	return 1;	/* timeout */
 }
 
@@ -214,7 +222,7 @@ static void wait_wecfifo_ready(struct sh_flctl *flctl)
 			return;
 		udelay(1);
 	}
-	printk(KERN_ERR "wait_wecfifo_ready(): Timeout occured \n");
+	timeout_error(flctl, __func__);
 }
 
 static void read_datareg(struct sh_flctl *flctl, int offset)
@@ -275,7 +283,7 @@ static void write_fiforeg(struct sh_flctl *flctl, int rlen, int offset)
 static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_val)
 {
 	struct sh_flctl *flctl = mtd_to_flctl(mtd);
-	uint32_t flcmncr_val = readl(FLCMNCR(flctl));
+	uint32_t flcmncr_val = readl(FLCMNCR(flctl)) & ~SEL_16BIT;
 	uint32_t flcmdcr_val, addr_len_bytes = 0;
 
 	/* Set SNAND bit if page size is 2048byte */
@@ -297,6 +305,8 @@ static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_va
 	case NAND_CMD_READOOB:
 		addr_len_bytes = flctl->rw_ADRCNT;
 		flcmdcr_val |= CDSRC_E;
+		if (flctl->chip.options & NAND_BUSWIDTH_16)
+			flcmncr_val |= SEL_16BIT;
 		break;
 	case NAND_CMD_SEQIN:
 		/* This case is that cmd is READ0 or READ1 or READ00 */
@@ -305,6 +315,8 @@ static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_va
 	case NAND_CMD_PAGEPROG:
 		addr_len_bytes = flctl->rw_ADRCNT;
 		flcmdcr_val |= DOCMD2_E | CDSRC_E | SELRW;
+		if (flctl->chip.options & NAND_BUSWIDTH_16)
+			flcmncr_val |= SEL_16BIT;
 		break;
 	case NAND_CMD_READID:
 		flcmncr_val &= ~SNAND_E;
@@ -523,6 +535,8 @@ static void flctl_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		set_addr(mtd, 0, page_addr);
 
 		flctl->read_bytes = mtd->writesize + mtd->oobsize;
+		if (flctl->chip.options & NAND_BUSWIDTH_16)
+			column >>= 1;
 		flctl->index += column;
 		goto read_normal_exit;
 
@@ -686,6 +700,18 @@ static uint8_t flctl_read_byte(struct mtd_info *mtd)
 	return data;
 }
 
+static uint16_t flctl_read_word(struct mtd_info *mtd)
+{
+       struct sh_flctl *flctl = mtd_to_flctl(mtd);
+       int index = flctl->index;
+       uint16_t data;
+       uint16_t *buf = (uint16_t *)&flctl->done_buff[index];
+
+       data = *buf;
+       flctl->index += 2;
+       return data;
+}
+
 static void flctl_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
@@ -769,38 +795,36 @@ static int flctl_chip_init_tail(struct mtd_info *mtd)
 	return 0;
 }
 
-static int __init flctl_probe(struct platform_device *pdev)
+static int __devinit flctl_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct sh_flctl *flctl;
 	struct mtd_info *flctl_mtd;
 	struct nand_chip *nand;
 	struct sh_flctl_platform_data *pdata;
-	int ret;
+	int ret = -ENXIO;
 
 	pdata = pdev->dev.platform_data;
 	if (pdata == NULL) {
-		printk(KERN_ERR "sh_flctl platform_data not found.\n");
-		return -ENODEV;
+		dev_err(&pdev->dev, "no platform data defined\n");
+		return -EINVAL;
 	}
 
 	flctl = kzalloc(sizeof(struct sh_flctl), GFP_KERNEL);
 	if (!flctl) {
-		printk(KERN_ERR "Unable to allocate NAND MTD dev structure.\n");
+		dev_err(&pdev->dev, "failed to allocate driver data\n");
 		return -ENOMEM;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
-		printk(KERN_ERR "%s: resource not found.\n", __func__);
-		ret = -ENODEV;
+		dev_err(&pdev->dev, "failed to get I/O memory\n");
 		goto err;
 	}
 
-	flctl->reg = ioremap(res->start, res->end - res->start + 1);
+	flctl->reg = ioremap(res->start, resource_size(res));
 	if (flctl->reg == NULL) {
-		printk(KERN_ERR "%s: ioremap error.\n", __func__);
-		ret = -ENOMEM;
+		dev_err(&pdev->dev, "failed to remap I/O memory\n");
 		goto err;
 	}
 
@@ -808,6 +832,7 @@ static int __init flctl_probe(struct platform_device *pdev)
 	flctl_mtd = &flctl->mtd;
 	nand = &flctl->chip;
 	flctl_mtd->priv = nand;
+	flctl->pdev = pdev;
 	flctl->hwecc = pdata->has_hwecc;
 
 	flctl_register_init(flctl, pdata->flcmncr_val);
@@ -825,6 +850,11 @@ static int __init flctl_probe(struct platform_device *pdev)
 	nand->select_chip = flctl_select_chip;
 	nand->cmdfunc = flctl_cmdfunc;
 
+	if (pdata->flcmncr_val & SEL_16BIT) {
+		nand->options |= NAND_BUSWIDTH_16;
+		nand->read_word = flctl_read_word;
+	}
+
 	ret = nand_scan_ident(flctl_mtd, 1);
 	if (ret)
 		goto err;
@@ -846,7 +876,7 @@ err:
 	return ret;
 }
 
-static int __exit flctl_remove(struct platform_device *pdev)
+static int __devexit flctl_remove(struct platform_device *pdev)
 {
 	struct sh_flctl *flctl = platform_get_drvdata(pdev);
 
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index 92c73344a669..fa28f01ae009 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -37,6 +37,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/nand_ecc.h>
 #include <linux/mtd/partitions.h>
+#include <linux/slab.h>
 
 /*--------------------------------------------------------------------------*/