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-rw-r--r--drivers/mtd/onenand/Kconfig7
-rw-r--r--drivers/mtd/onenand/Makefile3
-rw-r--r--drivers/mtd/onenand/generic.c7
-rw-r--r--drivers/mtd/onenand/omap2.c54
-rw-r--r--drivers/mtd/onenand/onenand_base.c55
-rw-r--r--drivers/mtd/onenand/onenand_bbt.c1
-rw-r--r--drivers/mtd/onenand/onenand_sim.c564
-rw-r--r--drivers/mtd/onenand/samsung.c19
-rw-r--r--drivers/mtd/onenand/samsung.h59
9 files changed, 98 insertions, 671 deletions
diff --git a/drivers/mtd/onenand/Kconfig b/drivers/mtd/onenand/Kconfig
index 91467bb0363..ab2607273e8 100644
--- a/drivers/mtd/onenand/Kconfig
+++ b/drivers/mtd/onenand/Kconfig
@@ -40,7 +40,6 @@ config MTD_ONENAND_SAMSUNG
config MTD_ONENAND_OTP
bool "OneNAND OTP Support"
- select HAVE_MTD_OTP
help
One Block of the NAND Flash Array memory is reserved as
a One-Time Programmable Block memory area.
@@ -68,10 +67,4 @@ config MTD_ONENAND_2X_PROGRAM
And more recent chips
-config MTD_ONENAND_SIM
- tristate "OneNAND simulator support"
- help
- The simulator may simulate various OneNAND flash chips for the
- OneNAND MTD layer.
-
endif # MTD_ONENAND
diff --git a/drivers/mtd/onenand/Makefile b/drivers/mtd/onenand/Makefile
index 2b7884c7577..9d6540e8b3d 100644
--- a/drivers/mtd/onenand/Makefile
+++ b/drivers/mtd/onenand/Makefile
@@ -10,7 +10,4 @@ obj-$(CONFIG_MTD_ONENAND_GENERIC) += generic.o
obj-$(CONFIG_MTD_ONENAND_OMAP2) += omap2.o
obj-$(CONFIG_MTD_ONENAND_SAMSUNG) += samsung.o
-# Simulator
-obj-$(CONFIG_MTD_ONENAND_SIM) += onenand_sim.o
-
onenand-objs = onenand_base.o onenand_bbt.o
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c
index 9f11562f849..093c29ac1a1 100644
--- a/drivers/mtd/onenand/generic.c
+++ b/drivers/mtd/onenand/generic.c
@@ -13,7 +13,6 @@
*/
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
@@ -38,7 +37,7 @@ struct onenand_info {
static int generic_onenand_probe(struct platform_device *pdev)
{
struct onenand_info *info;
- struct onenand_platform_data *pdata = pdev->dev.platform_data;
+ struct onenand_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *res = pdev->resource;
unsigned long size = resource_size(res);
int err;
@@ -58,7 +57,7 @@ static int generic_onenand_probe(struct platform_device *pdev)
goto out_release_mem_region;
}
- info->onenand.mmcontrol = pdata ? pdata->mmcontrol : 0;
+ info->onenand.mmcontrol = pdata ? pdata->mmcontrol : NULL;
info->onenand.irq = platform_get_irq(pdev, 0);
info->mtd.name = dev_name(&pdev->dev);
@@ -94,8 +93,6 @@ static int generic_onenand_remove(struct platform_device *pdev)
struct resource *res = pdev->resource;
unsigned long size = resource_size(res);
- platform_set_drvdata(pdev, NULL);
-
if (info) {
onenand_release(&info->mtd);
release_mem_region(res->start, size);
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 065f3fe02a2..d945473c388 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -25,7 +25,6 @@
#include <linux/device.h>
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
#include <linux/mtd/partitions.h>
@@ -159,7 +158,7 @@ static int omap2_onenand_wait(struct mtd_info *mtd, int state)
syscfg = read_reg(c, ONENAND_REG_SYS_CFG1);
}
- INIT_COMPLETION(c->irq_done);
+ reinit_completion(&c->irq_done);
if (c->gpio_irq) {
result = gpio_get_value(c->gpio_irq);
if (result == -1) {
@@ -349,7 +348,7 @@ static int omap3_onenand_read_bufferram(struct mtd_info *mtd, int area,
omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
dma_dst, 0, 0);
- INIT_COMPLETION(c->dma_done);
+ reinit_completion(&c->dma_done);
omap_start_dma(c->dma_channel);
timeout = jiffies + msecs_to_jiffies(20);
@@ -420,7 +419,7 @@ static int omap3_onenand_write_bufferram(struct mtd_info *mtd, int area,
omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
dma_dst, 0, 0);
- INIT_COMPLETION(c->dma_done);
+ reinit_completion(&c->dma_done);
omap_start_dma(c->dma_channel);
timeout = jiffies + msecs_to_jiffies(20);
@@ -499,7 +498,7 @@ static int omap2_onenand_read_bufferram(struct mtd_info *mtd, int area,
omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
dma_dst, 0, 0);
- INIT_COMPLETION(c->dma_done);
+ reinit_completion(&c->dma_done);
omap_start_dma(c->dma_channel);
wait_for_completion(&c->dma_done);
@@ -544,7 +543,7 @@ static int omap2_onenand_write_bufferram(struct mtd_info *mtd, int area,
omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
dma_dst, 0, 0);
- INIT_COMPLETION(c->dma_done);
+ reinit_completion(&c->dma_done);
omap_start_dma(c->dma_channel);
wait_for_completion(&c->dma_done);
@@ -573,28 +572,6 @@ static int omap2_onenand_write_bufferram(struct mtd_info *mtd, int area,
static struct platform_driver omap2_onenand_driver;
-static int __adjust_timing(struct device *dev, void *data)
-{
- int ret = 0;
- struct omap2_onenand *c;
-
- c = dev_get_drvdata(dev);
-
- BUG_ON(c->setup == NULL);
-
- /* DMA is not in use so this is all that is needed */
- /* Revisit for OMAP3! */
- ret = c->setup(c->onenand.base, &c->freq);
-
- return ret;
-}
-
-int omap2_onenand_rephase(void)
-{
- return driver_for_each_device(&omap2_onenand_driver.driver, NULL,
- NULL, __adjust_timing);
-}
-
static void omap2_onenand_shutdown(struct platform_device *pdev)
{
struct omap2_onenand *c = dev_get_drvdata(&pdev->dev);
@@ -637,8 +614,9 @@ static int omap2_onenand_probe(struct platform_device *pdev)
struct onenand_chip *this;
int r;
struct resource *res;
+ struct mtd_part_parser_data ppdata = {};
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
if (pdata == NULL) {
dev_err(&pdev->dev, "platform data missing\n");
return -ENODEV;
@@ -767,7 +745,8 @@ static int omap2_onenand_probe(struct platform_device *pdev)
if ((r = onenand_scan(&c->mtd, 1)) < 0)
goto err_release_regulator;
- r = mtd_device_parse_register(&c->mtd, NULL, NULL,
+ ppdata.of_node = pdata->of_node;
+ r = mtd_device_parse_register(&c->mtd, NULL, &ppdata,
pdata ? pdata->parts : NULL,
pdata ? pdata->nr_parts : 0);
if (r)
@@ -808,7 +787,6 @@ static int omap2_onenand_remove(struct platform_device *pdev)
if (c->dma_channel != -1)
omap_free_dma(c->dma_channel);
omap2_onenand_shutdown(pdev);
- platform_set_drvdata(pdev, NULL);
if (c->gpio_irq) {
free_irq(gpio_to_irq(c->gpio_irq), c);
gpio_free(c->gpio_irq);
@@ -830,19 +808,7 @@ static struct platform_driver omap2_onenand_driver = {
},
};
-static int __init omap2_onenand_init(void)
-{
- printk(KERN_INFO "OneNAND driver initializing\n");
- return platform_driver_register(&omap2_onenand_driver);
-}
-
-static void __exit omap2_onenand_exit(void)
-{
- platform_driver_unregister(&omap2_onenand_driver);
-}
-
-module_init(omap2_onenand_init);
-module_exit(omap2_onenand_exit);
+module_platform_driver(omap2_onenand_driver);
MODULE_ALIAS("platform:" DRIVER_NAME);
MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index b3f41f20062..635ee002769 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -24,7 +24,6 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
-#include <linux/init.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
@@ -2556,10 +2555,6 @@ static int onenand_block_isbad(struct mtd_info *mtd, loff_t ofs)
{
int ret;
- /* Check for invalid offset */
- if (ofs > mtd->size)
- return -EINVAL;
-
onenand_get_device(mtd, FL_READING);
ret = onenand_block_isbad_nolock(mtd, ofs, 0);
onenand_release_device(mtd);
@@ -3242,20 +3237,17 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
/**
* onenand_get_fact_prot_info - [MTD Interface] Read factory OTP info
* @param mtd MTD device structure
- * @param buf the databuffer to put/get data
* @param len number of bytes to read
+ * @param retlen pointer to variable to store the number of read bytes
+ * @param buf the databuffer to put/get data
*
* Read factory OTP info.
*/
-static int onenand_get_fact_prot_info(struct mtd_info *mtd,
- struct otp_info *buf, size_t len)
+static int onenand_get_fact_prot_info(struct mtd_info *mtd, size_t len,
+ size_t *retlen, struct otp_info *buf)
{
- size_t retlen;
- int ret;
-
- ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_FACTORY);
-
- return ret ? : retlen;
+ return onenand_otp_walk(mtd, 0, len, retlen, (u_char *) buf, NULL,
+ MTD_OTP_FACTORY);
}
/**
@@ -3277,20 +3269,17 @@ static int onenand_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
/**
* onenand_get_user_prot_info - [MTD Interface] Read user OTP info
* @param mtd MTD device structure
- * @param buf the databuffer to put/get data
+ * @param retlen pointer to variable to store the number of read bytes
* @param len number of bytes to read
+ * @param buf the databuffer to put/get data
*
* Read user OTP info.
*/
-static int onenand_get_user_prot_info(struct mtd_info *mtd,
- struct otp_info *buf, size_t len)
+static int onenand_get_user_prot_info(struct mtd_info *mtd, size_t len,
+ size_t *retlen, struct otp_info *buf)
{
- size_t retlen;
- int ret;
-
- ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_USER);
-
- return ret ? : retlen;
+ return onenand_otp_walk(mtd, 0, len, retlen, (u_char *) buf, NULL,
+ MTD_OTP_USER);
}
/**
@@ -3529,7 +3518,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
unsigned die, bdry;
- int ret, syscfg, locked;
+ int syscfg, locked;
/* Disable ECC */
syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
@@ -3540,7 +3529,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
this->wait(mtd, FL_SYNCING);
this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
- ret = this->wait(mtd, FL_READING);
+ this->wait(mtd, FL_READING);
bdry = this->read_word(this->base + ONENAND_DATARAM);
if ((bdry >> FLEXONENAND_PI_UNLOCK_SHIFT) == 3)
@@ -3550,7 +3539,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
this->boundary[die] = bdry & FLEXONENAND_PI_MASK;
this->command(mtd, ONENAND_CMD_RESET, 0, 0);
- ret = this->wait(mtd, FL_RESETING);
+ this->wait(mtd, FL_RESETING);
printk(KERN_INFO "Die %d boundary: %d%s\n", die,
this->boundary[die], locked ? "(Locked)" : "(Unlocked)");
@@ -3734,7 +3723,7 @@ static int flexonenand_set_boundary(struct mtd_info *mtd, int die,
/* Check is boundary is locked */
this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
- ret = this->wait(mtd, FL_READING);
+ this->wait(mtd, FL_READING);
thisboundary = this->read_word(this->base + ONENAND_DATARAM);
if ((thisboundary >> FLEXONENAND_PI_UNLOCK_SHIFT) != 3) {
@@ -3835,7 +3824,7 @@ static int onenand_chip_probe(struct mtd_info *mtd)
static int onenand_probe(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
- int maf_id, dev_id, ver_id;
+ int dev_id, ver_id;
int density;
int ret;
@@ -3843,8 +3832,7 @@ static int onenand_probe(struct mtd_info *mtd)
if (ret)
return ret;
- /* Read manufacturer and device IDs from Register */
- maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
+ /* Device and version IDs from Register */
dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID);
this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY);
@@ -4000,11 +3988,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
/* Allocate buffers, if necessary */
if (!this->page_buf) {
this->page_buf = kzalloc(mtd->writesize, GFP_KERNEL);
- if (!this->page_buf) {
- printk(KERN_ERR "%s: Can't allocate page_buf\n",
- __func__);
+ if (!this->page_buf)
return -ENOMEM;
- }
#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
this->verify_buf = kzalloc(mtd->writesize, GFP_KERNEL);
if (!this->verify_buf) {
@@ -4017,8 +4002,6 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
if (!this->oob_buf) {
this->oob_buf = kzalloc(mtd->oobsize, GFP_KERNEL);
if (!this->oob_buf) {
- printk(KERN_ERR "%s: Can't allocate oob_buf\n",
- __func__);
if (this->options & ONENAND_PAGEBUF_ALLOC) {
this->options &= ~ONENAND_PAGEBUF_ALLOC;
kfree(this->page_buf);
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index 66fe3b7e785..08d0085f3e9 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -133,7 +133,6 @@ static inline int onenand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_desc
{
struct onenand_chip *this = mtd->priv;
- bd->options &= ~NAND_BBT_SCANEMPTY;
return create_bbt(mtd, this->page_buf, bd, -1);
}
diff --git a/drivers/mtd/onenand/onenand_sim.c b/drivers/mtd/onenand/onenand_sim.c
deleted file mode 100644
index 85399e3accd..00000000000
--- a/drivers/mtd/onenand/onenand_sim.c
+++ /dev/null
@@ -1,564 +0,0 @@
-/*
- * linux/drivers/mtd/onenand/onenand_sim.c
- *
- * The OneNAND simulator
- *
- * Copyright © 2005-2007 Samsung Electronics
- * Kyungmin Park <kyungmin.park@samsung.com>
- *
- * Vishak G <vishak.g at samsung.com>, Rohit Hagargundgi <h.rohit at samsung.com>
- * Flex-OneNAND simulator support
- * Copyright (C) Samsung Electronics, 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/onenand.h>
-
-#include <linux/io.h>
-
-#ifndef CONFIG_ONENAND_SIM_MANUFACTURER
-#define CONFIG_ONENAND_SIM_MANUFACTURER 0xec
-#endif
-
-#ifndef CONFIG_ONENAND_SIM_DEVICE_ID
-#define CONFIG_ONENAND_SIM_DEVICE_ID 0x04
-#endif
-
-#define CONFIG_FLEXONENAND ((CONFIG_ONENAND_SIM_DEVICE_ID >> 9) & 1)
-
-#ifndef CONFIG_ONENAND_SIM_VERSION_ID
-#define CONFIG_ONENAND_SIM_VERSION_ID 0x1e
-#endif
-
-#ifndef CONFIG_ONENAND_SIM_TECHNOLOGY_ID
-#define CONFIG_ONENAND_SIM_TECHNOLOGY_ID CONFIG_FLEXONENAND
-#endif
-
-/* Initial boundary values for Flex-OneNAND Simulator */
-#ifndef CONFIG_FLEXONENAND_SIM_DIE0_BOUNDARY
-#define CONFIG_FLEXONENAND_SIM_DIE0_BOUNDARY 0x01
-#endif
-
-#ifndef CONFIG_FLEXONENAND_SIM_DIE1_BOUNDARY
-#define CONFIG_FLEXONENAND_SIM_DIE1_BOUNDARY 0x01
-#endif
-
-static int manuf_id = CONFIG_ONENAND_SIM_MANUFACTURER;
-static int device_id = CONFIG_ONENAND_SIM_DEVICE_ID;
-static int version_id = CONFIG_ONENAND_SIM_VERSION_ID;
-static int technology_id = CONFIG_ONENAND_SIM_TECHNOLOGY_ID;
-static int boundary[] = {
- CONFIG_FLEXONENAND_SIM_DIE0_BOUNDARY,
- CONFIG_FLEXONENAND_SIM_DIE1_BOUNDARY,
-};
-
-struct onenand_flash {
- void __iomem *base;
- void __iomem *data;
-};
-
-#define ONENAND_CORE(flash) (flash->data)
-#define ONENAND_CORE_SPARE(flash, this, offset) \
- ((flash->data) + (this->chipsize) + (offset >> 5))
-
-#define ONENAND_MAIN_AREA(this, offset) \
- (this->base + ONENAND_DATARAM + offset)
-
-#define ONENAND_SPARE_AREA(this, offset) \
- (this->base + ONENAND_SPARERAM + offset)
-
-#define ONENAND_GET_WP_STATUS(this) \
- (readw(this->base + ONENAND_REG_WP_STATUS))
-
-#define ONENAND_SET_WP_STATUS(v, this) \
- (writew(v, this->base + ONENAND_REG_WP_STATUS))
-
-/* It has all 0xff chars */
-#define MAX_ONENAND_PAGESIZE (4096 + 128)
-static unsigned char *ffchars;
-
-#if CONFIG_FLEXONENAND
-#define PARTITION_NAME "Flex-OneNAND simulator partition"
-#else
-#define PARTITION_NAME "OneNAND simulator partition"
-#endif
-
-static struct mtd_partition os_partitions[] = {
- {
- .name = PARTITION_NAME,
- .offset = 0,
- .size = MTDPART_SIZ_FULL,
- },
-};
-
-/*
- * OneNAND simulator mtd
- */
-struct onenand_info {
- struct mtd_info mtd;
- struct mtd_partition *parts;
- struct onenand_chip onenand;
- struct onenand_flash flash;
-};
-
-static struct onenand_info *info;
-
-#define DPRINTK(format, args...) \
-do { \
- printk(KERN_DEBUG "%s[%d]: " format "\n", __func__, \
- __LINE__, ##args); \
-} while (0)
-
-/**
- * onenand_lock_handle - Handle Lock scheme
- * @this: OneNAND device structure
- * @cmd: The command to be sent
- *
- * Send lock command to OneNAND device.
- * The lock scheme depends on chip type.
- */
-static void onenand_lock_handle(struct onenand_chip *this, int cmd)
-{
- int block_lock_scheme;
- int status;
-
- status = ONENAND_GET_WP_STATUS(this);
- block_lock_scheme = !(this->options & ONENAND_HAS_CONT_LOCK);
-
- switch (cmd) {
- case ONENAND_CMD_UNLOCK:
- case ONENAND_CMD_UNLOCK_ALL:
- if (block_lock_scheme)
- ONENAND_SET_WP_STATUS(ONENAND_WP_US, this);
- else
- ONENAND_SET_WP_STATUS(status | ONENAND_WP_US, this);
- break;
-
- case ONENAND_CMD_LOCK:
- if (block_lock_scheme)
- ONENAND_SET_WP_STATUS(ONENAND_WP_LS, this);
- else
- ONENAND_SET_WP_STATUS(status | ONENAND_WP_LS, this);
- break;
-
- case ONENAND_CMD_LOCK_TIGHT:
- if (block_lock_scheme)
- ONENAND_SET_WP_STATUS(ONENAND_WP_LTS, this);
- else
- ONENAND_SET_WP_STATUS(status | ONENAND_WP_LTS, this);
- break;
-
- default:
- break;
- }
-}
-
-/**
- * onenand_bootram_handle - Handle BootRAM area
- * @this: OneNAND device structure
- * @cmd: The command to be sent
- *
- * Emulate BootRAM area. It is possible to do basic operation using BootRAM.
- */
-static void onenand_bootram_handle(struct onenand_chip *this, int cmd)
-{
- switch (cmd) {
- case ONENAND_CMD_READID:
- writew(manuf_id, this->base);
- writew(device_id, this->base + 2);
- writew(version_id, this->base + 4);
- break;
-
- default:
- /* REVIST: Handle other commands */
- break;
- }
-}
-
-/**
- * onenand_update_interrupt - Set interrupt register
- * @this: OneNAND device structure
- * @cmd: The command to be sent
- *
- * Update interrupt register. The status depends on command.
- */
-static void onenand_update_interrupt(struct onenand_chip *this, int cmd)
-{
- int interrupt = ONENAND_INT_MASTER;
-
- switch (cmd) {
- case ONENAND_CMD_READ:
- case ONENAND_CMD_READOOB:
- interrupt |= ONENAND_INT_READ;
- break;
-
- case ONENAND_CMD_PROG:
- case ONENAND_CMD_PROGOOB:
- interrupt |= ONENAND_INT_WRITE;
- break;
-
- case ONENAND_CMD_ERASE:
- interrupt |= ONENAND_INT_ERASE;
- break;
-
- case ONENAND_CMD_RESET:
- interrupt |= ONENAND_INT_RESET;
- break;
-
- default:
- break;
- }
-
- writew(interrupt, this->base + ONENAND_REG_INTERRUPT);
-}
-
-/**
- * onenand_check_overwrite - Check if over-write happened
- * @dest: The destination pointer
- * @src: The source pointer
- * @count: The length to be check
- *
- * Returns: 0 on same, otherwise 1
- *
- * Compare the source with destination
- */
-static int onenand_check_overwrite(void *dest, void *src, size_t count)
-{
- unsigned int *s = (unsigned int *) src;
- unsigned int *d = (unsigned int *) dest;
- int i;
-
- count >>= 2;
- for (i = 0; i < count; i++)
- if ((*s++ ^ *d++) != 0)
- return 1;
-
- return 0;
-}
-
-/**
- * onenand_data_handle - Handle OneNAND Core and DataRAM
- * @this: OneNAND device structure
- * @cmd: The command to be sent
- * @dataram: Which dataram used
- * @offset: The offset to OneNAND Core
- *
- * Copy data from OneNAND Core to DataRAM (read)
- * Copy data from DataRAM to OneNAND Core (write)
- * Erase the OneNAND Core (erase)
- */
-static void onenand_data_handle(struct onenand_chip *this, int cmd,
- int dataram, unsigned int offset)
-{
- struct mtd_info *mtd = &info->mtd;
- struct onenand_flash *flash = this->priv;
- int main_offset, spare_offset, die = 0;
- void __iomem *src;
- void __iomem *dest;
- unsigned int i;
- static int pi_operation;
- int erasesize, rgn;
-
- if (dataram) {
- main_offset = mtd->writesize;
- spare_offset = mtd->oobsize;
- } else {
- main_offset = 0;
- spare_offset = 0;
- }
-
- if (pi_operation) {
- die = readw(this->base + ONENAND_REG_START_ADDRESS2);
- die >>= ONENAND_DDP_SHIFT;
- }
-
- switch (cmd) {
- case FLEXONENAND_CMD_PI_ACCESS:
- pi_operation = 1;
- break;
-
- case ONENAND_CMD_RESET:
- pi_operation = 0;
- break;
-
- case ONENAND_CMD_READ:
- src = ONENAND_CORE(flash) + offset;
- dest = ONENAND_MAIN_AREA(this, main_offset);
- if (pi_operation) {
- writew(boundary[die], this->base + ONENAND_DATARAM);
- break;
- }
- memcpy(dest, src, mtd->writesize);
- /* Fall through */
-
- case ONENAND_CMD_READOOB:
- src = ONENAND_CORE_SPARE(flash, this, offset);
- dest = ONENAND_SPARE_AREA(this, spare_offset);
- memcpy(dest, src, mtd->oobsize);
- break;
-
- case ONENAND_CMD_PROG:
- src = ONENAND_MAIN_AREA(this, main_offset);
- dest = ONENAND_CORE(flash) + offset;
- if (pi_operation) {
- boundary[die] = readw(this->base + ONENAND_DATARAM);
- break;
- }
- /* To handle partial write */
- for (i = 0; i < (1 << mtd->subpage_sft); i++) {
- int off = i * this->subpagesize;
- if (!memcmp(src + off, ffchars, this->subpagesize))
- continue;
- if (memcmp(dest + off, ffchars, this->subpagesize) &&
- onenand_check_overwrite(dest + off, src + off, this->subpagesize))
- printk(KERN_ERR "over-write happened at 0x%08x\n", offset);
- memcpy(dest + off, src + off, this->subpagesize);
- }
- /* Fall through */
-
- case ONENAND_CMD_PROGOOB:
- src = ONENAND_SPARE_AREA(this, spare_offset);
- /* Check all data is 0xff chars */
- if (!memcmp(src, ffchars, mtd->oobsize))
- break;
-
- dest = ONENAND_CORE_SPARE(flash, this, offset);
- if (memcmp(dest, ffchars, mtd->oobsize) &&
- onenand_check_overwrite(dest, src, mtd->oobsize))
- printk(KERN_ERR "OOB: over-write happened at 0x%08x\n",
- offset);
- memcpy(dest, src, mtd->oobsize);
- break;
-
- case ONENAND_CMD_ERASE:
- if (pi_operation)
- break;
-
- if (FLEXONENAND(this)) {
- rgn = flexonenand_region(mtd, offset);
- erasesize = mtd->eraseregions[rgn].erasesize;
- } else
- erasesize = mtd->erasesize;
-
- memset(ONENAND_CORE(flash) + offset, 0xff, erasesize);
- memset(ONENAND_CORE_SPARE(flash, this, offset), 0xff,
- (erasesize >> 5));
- break;
-
- default:
- break;
- }
-}
-
-/**
- * onenand_command_handle - Handle command
- * @this: OneNAND device structure
- * @cmd: The command to be sent
- *
- * Emulate OneNAND command.
- */
-static void onenand_command_handle(struct onenand_chip *this, int cmd)
-{
- unsigned long offset = 0;
- int block = -1, page = -1, bufferram = -1;
- int dataram = 0;
-
- switch (cmd) {
- case ONENAND_CMD_UNLOCK:
- case ONENAND_CMD_LOCK:
- case ONENAND_CMD_LOCK_TIGHT:
- case ONENAND_CMD_UNLOCK_ALL:
- onenand_lock_handle(this, cmd);
- break;
-
- case ONENAND_CMD_BUFFERRAM:
- /* Do nothing */
- return;
-
- default:
- block = (int) readw(this->base + ONENAND_REG_START_ADDRESS1);
- if (block & (1 << ONENAND_DDP_SHIFT)) {
- block &= ~(1 << ONENAND_DDP_SHIFT);
- /* The half of chip block */
- block += this->chipsize >> (this->erase_shift + 1);
- }
- if (cmd == ONENAND_CMD_ERASE)
- break;
-
- page = (int) readw(this->base + ONENAND_REG_START_ADDRESS8);
- page = (page >> ONENAND_FPA_SHIFT);
- bufferram = (int) readw(this->base + ONENAND_REG_START_BUFFER);
- bufferram >>= ONENAND_BSA_SHIFT;
- bufferram &= ONENAND_BSA_DATARAM1;
- dataram = (bufferram == ONENAND_BSA_DATARAM1) ? 1 : 0;
- break;
- }
-
- if (block != -1)
- offset = onenand_addr(this, block);
-
- if (page != -1)
- offset += page << this->page_shift;
-
- onenand_data_handle(this, cmd, dataram, offset);
-
- onenand_update_interrupt(this, cmd);
-}
-
-/**
- * onenand_writew - [OneNAND Interface] Emulate write operation
- * @value: value to write
- * @addr: address to write
- *
- * Write OneNAND register with value
- */
-static void onenand_writew(unsigned short value, void __iomem * addr)
-{
- struct onenand_chip *this = info->mtd.priv;
-
- /* BootRAM handling */
- if (addr < this->base + ONENAND_DATARAM) {
- onenand_bootram_handle(this, value);
- return;
- }
- /* Command handling */
- if (addr == this->base + ONENAND_REG_COMMAND)
- onenand_command_handle(this, value);
-
- writew(value, addr);
-}
-
-/**
- * flash_init - Initialize OneNAND simulator
- * @flash: OneNAND simulator data strucutres
- *
- * Initialize OneNAND simulator.
- */
-static int __init flash_init(struct onenand_flash *flash)
-{
- int density, size;
- int buffer_size;
-
- flash->base = kzalloc(131072, GFP_KERNEL);
- if (!flash->base) {
- printk(KERN_ERR "Unable to allocate base address.\n");
- return -ENOMEM;
- }
-
- density = device_id >> ONENAND_DEVICE_DENSITY_SHIFT;
- density &= ONENAND_DEVICE_DENSITY_MASK;
- size = ((16 << 20) << density);
-
- ONENAND_CORE(flash) = vmalloc(size + (size >> 5));
- if (!ONENAND_CORE(flash)) {
- printk(KERN_ERR "Unable to allocate nand core address.\n");
- kfree(flash->base);
- return -ENOMEM;
- }
-
- memset(ONENAND_CORE(flash), 0xff, size + (size >> 5));
-
- /* Setup registers */
- writew(manuf_id, flash->base + ONENAND_REG_MANUFACTURER_ID);
- writew(device_id, flash->base + ONENAND_REG_DEVICE_ID);
- writew(version_id, flash->base + ONENAND_REG_VERSION_ID);
- writew(technology_id, flash->base + ONENAND_REG_TECHNOLOGY);
-
- if (density < 2 && (!CONFIG_FLEXONENAND))
- buffer_size = 0x0400; /* 1KiB page */
- else
- buffer_size = 0x0800; /* 2KiB page */
- writew(buffer_size, flash->base + ONENAND_REG_DATA_BUFFER_SIZE);
-
- return 0;
-}
-
-/**
- * flash_exit - Clean up OneNAND simulator
- * @flash: OneNAND simulator data structures
- *
- * Clean up OneNAND simulator.
- */
-static void flash_exit(struct onenand_flash *flash)
-{
- vfree(ONENAND_CORE(flash));
- kfree(flash->base);
-}
-
-static int __init onenand_sim_init(void)
-{
- /* Allocate all 0xff chars pointer */
- ffchars = kmalloc(MAX_ONENAND_PAGESIZE, GFP_KERNEL);
- if (!ffchars) {
- printk(KERN_ERR "Unable to allocate ff chars.\n");
- return -ENOMEM;
- }
- memset(ffchars, 0xff, MAX_ONENAND_PAGESIZE);
-
- /* Allocate OneNAND simulator mtd pointer */
- info = kzalloc(sizeof(struct onenand_info), GFP_KERNEL);
- if (!info) {
- printk(KERN_ERR "Unable to allocate core structures.\n");
- kfree(ffchars);
- return -ENOMEM;
- }
-
- /* Override write_word function */
- info->onenand.write_word = onenand_writew;
-
- if (flash_init(&info->flash)) {
- printk(KERN_ERR "Unable to allocate flash.\n");
- kfree(ffchars);
- kfree(info);
- return -ENOMEM;
- }
-
- info->parts = os_partitions;
-
- info->onenand.base = info->flash.base;
- info->onenand.priv = &info->flash;
-
- info->mtd.name = "OneNAND simulator";
- info->mtd.priv = &info->onenand;
- info->mtd.owner = THIS_MODULE;
-
- if (onenand_scan(&info->mtd, 1)) {
- flash_exit(&info->flash);
- kfree(ffchars);
- kfree(info);
- return -ENXIO;
- }
-
- mtd_device_register(&info->mtd, info->parts,
- ARRAY_SIZE(os_partitions));
-
- return 0;
-}
-
-static void __exit onenand_sim_exit(void)
-{
- struct onenand_chip *this = info->mtd.priv;
- struct onenand_flash *flash = this->priv;
-
- onenand_release(&info->mtd);
- flash_exit(flash);
- kfree(ffchars);
- kfree(info);
-}
-
-module_init(onenand_sim_init);
-module_exit(onenand_sim_exit);
-
-MODULE_AUTHOR("Kyungmin Park <kyungmin.park@samsung.com>");
-MODULE_DESCRIPTION("The OneNAND flash simulator");
-MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index 33f2a8fb8df..efb819c3df2 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -23,11 +23,11 @@
#include <linux/mtd/partitions.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
+#include <linux/io.h>
#include <asm/mach/flash.h>
-#include <plat/regs-onenand.h>
-#include <linux/io.h>
+#include "samsung.h"
enum soc_type {
TYPE_S3C6400,
@@ -537,9 +537,9 @@ static int onenand_write_bufferram(struct mtd_info *mtd, int area,
return 0;
}
-static int (*s5pc110_dma_ops)(void *dst, void *src, size_t count, int direction);
+static int (*s5pc110_dma_ops)(dma_addr_t dst, dma_addr_t src, size_t count, int direction);
-static int s5pc110_dma_poll(void *dst, void *src, size_t count, int direction)
+static int s5pc110_dma_poll(dma_addr_t dst, dma_addr_t src, size_t count, int direction)
{
void __iomem *base = onenand->dma_addr;
int status;
@@ -605,7 +605,7 @@ static irqreturn_t s5pc110_onenand_irq(int irq, void *data)
return IRQ_HANDLED;
}
-static int s5pc110_dma_irq(void *dst, void *src, size_t count, int direction)
+static int s5pc110_dma_irq(dma_addr_t dst, dma_addr_t src, size_t count, int direction)
{
void __iomem *base = onenand->dma_addr;
int status;
@@ -686,7 +686,7 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
dev_err(dev, "Couldn't map a %d byte buffer for DMA\n", count);
goto normal;
}
- err = s5pc110_dma_ops((void *) dma_dst, (void *) dma_src,
+ err = s5pc110_dma_ops(dma_dst, dma_src,
count, S5PC110_DMA_DIR_READ);
if (page_dma)
@@ -867,15 +867,13 @@ static int s3c_onenand_probe(struct platform_device *pdev)
struct resource *r;
int size, err;
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
/* No need to check pdata. the platform data is optional */
size = sizeof(struct mtd_info) + sizeof(struct onenand_chip);
mtd = kzalloc(size, GFP_KERNEL);
- if (!mtd) {
- dev_err(&pdev->dev, "failed to allocate memory\n");
+ if (!mtd)
return -ENOMEM;
- }
onenand = kzalloc(sizeof(struct s3c_onenand), GFP_KERNEL);
if (!onenand) {
@@ -1073,7 +1071,6 @@ static int s3c_onenand_remove(struct platform_device *pdev)
release_mem_region(onenand->base_res->start,
resource_size(onenand->base_res));
- platform_set_drvdata(pdev, NULL);
kfree(onenand->oob_buf);
kfree(onenand->page_buf);
kfree(onenand);
diff --git a/drivers/mtd/onenand/samsung.h b/drivers/mtd/onenand/samsung.h
new file mode 100644
index 00000000000..9016dc0136a
--- /dev/null
+++ b/drivers/mtd/onenand/samsung.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2008-2010 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __SAMSUNG_ONENAND_H__
+#define __SAMSUNG_ONENAND_H__
+
+/*
+ * OneNAND Controller
+ */
+#define MEM_CFG_OFFSET 0x0000
+#define BURST_LEN_OFFSET 0x0010
+#define MEM_RESET_OFFSET 0x0020
+#define INT_ERR_STAT_OFFSET 0x0030
+#define INT_ERR_MASK_OFFSET 0x0040
+#define INT_ERR_ACK_OFFSET 0x0050
+#define ECC_ERR_STAT_OFFSET 0x0060
+#define MANUFACT_ID_OFFSET 0x0070
+#define DEVICE_ID_OFFSET 0x0080
+#define DATA_BUF_SIZE_OFFSET 0x0090
+#define BOOT_BUF_SIZE_OFFSET 0x00A0
+#define BUF_AMOUNT_OFFSET 0x00B0
+#define TECH_OFFSET 0x00C0
+#define FBA_WIDTH_OFFSET 0x00D0
+#define FPA_WIDTH_OFFSET 0x00E0
+#define FSA_WIDTH_OFFSET 0x00F0
+#define TRANS_SPARE_OFFSET 0x0140
+#define DBS_DFS_WIDTH_OFFSET 0x0160
+#define INT_PIN_ENABLE_OFFSET 0x01A0
+#define ACC_CLOCK_OFFSET 0x01C0
+#define FLASH_VER_ID_OFFSET 0x01F0
+#define FLASH_AUX_CNTRL_OFFSET 0x0300 /* s3c64xx only */
+
+#define ONENAND_MEM_RESET_HOT 0x3
+#define ONENAND_MEM_RESET_COLD 0x2
+#define ONENAND_MEM_RESET_WARM 0x1
+
+#define CACHE_OP_ERR (1 << 13)
+#define RST_CMP (1 << 12)
+#define RDY_ACT (1 << 11)
+#define INT_ACT (1 << 10)
+#define UNSUP_CMD (1 << 9)
+#define LOCKED_BLK (1 << 8)
+#define BLK_RW_CMP (1 << 7)
+#define ERS_CMP (1 << 6)
+#define PGM_CMP (1 << 5)
+#define LOAD_CMP (1 << 4)
+#define ERS_FAIL (1 << 3)
+#define PGM_FAIL (1 << 2)
+#define INT_TO (1 << 1)
+#define LD_FAIL_ECC_ERR (1 << 0)
+
+#define TSRF (1 << 0)
+
+#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 18:52:02 +0000