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Diffstat (limited to 'drivers/mtd/onenand')
-rw-r--r--drivers/mtd/onenand/Kconfig4
-rw-r--r--drivers/mtd/onenand/onenand_base.c49
-rw-r--r--drivers/mtd/onenand/onenand_bbt.c1
-rw-r--r--drivers/mtd/onenand/samsung.c21
4 files changed, 45 insertions, 30 deletions
diff --git a/drivers/mtd/onenand/Kconfig b/drivers/mtd/onenand/Kconfig
index 9a49d68ba5f9..3f32289fdbb5 100644
--- a/drivers/mtd/onenand/Kconfig
+++ b/drivers/mtd/onenand/Kconfig
@@ -25,14 +25,14 @@ config MTD_ONENAND_GENERIC
config MTD_ONENAND_OMAP2
tristate "OneNAND on OMAP2/OMAP3 support"
- depends on MTD_ONENAND && (ARCH_OMAP2 || ARCH_OMAP3)
+ depends on ARCH_OMAP2 || ARCH_OMAP3
help
Support for a OneNAND flash device connected to an OMAP2/OMAP3 CPU
via the GPMC memory controller.
config MTD_ONENAND_SAMSUNG
tristate "OneNAND on Samsung SOC controller support"
- depends on MTD_ONENAND && (ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210)
+ depends on ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210
help
Support for a OneNAND flash device connected to an Samsung SOC
S3C64XX/S5PC1XX controller.
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 26caf2590dae..a2bb520286f8 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -377,8 +377,11 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
default:
block = onenand_block(this, addr);
- page = (int) (addr - onenand_addr(this, block)) >> this->page_shift;
-
+ if (FLEXONENAND(this))
+ page = (int) (addr - onenand_addr(this, block))>>\
+ this->page_shift;
+ else
+ page = (int) (addr >> this->page_shift);
if (ONENAND_IS_2PLANE(this)) {
/* Make the even block number */
block &= ~1;
@@ -3730,17 +3733,16 @@ out:
}
/**
- * onenand_probe - [OneNAND Interface] Probe the OneNAND device
+ * onenand_chip_probe - [OneNAND Interface] The generic chip probe
* @param mtd MTD device structure
*
* OneNAND detection method:
* Compare the values from command with ones from register
*/
-static int onenand_probe(struct mtd_info *mtd)
+static int onenand_chip_probe(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
- int bram_maf_id, bram_dev_id, maf_id, dev_id, ver_id;
- int density;
+ int bram_maf_id, bram_dev_id, maf_id, dev_id;
int syscfg;
/* Save system configuration 1 */
@@ -3763,12 +3765,6 @@ static int onenand_probe(struct mtd_info *mtd)
/* Restore system configuration 1 */
this->write_word(syscfg, this->base + ONENAND_REG_SYS_CFG1);
- /* Workaround */
- if (syscfg & ONENAND_SYS_CFG1_SYNC_WRITE) {
- bram_maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
- bram_dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
- }
-
/* Check manufacturer ID */
if (onenand_check_maf(bram_maf_id))
return -ENXIO;
@@ -3776,13 +3772,35 @@ static int onenand_probe(struct mtd_info *mtd)
/* Read manufacturer and device IDs from Register */
maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
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);
/* Check OneNAND device */
if (maf_id != bram_maf_id || dev_id != bram_dev_id)
return -ENXIO;
+ return 0;
+}
+
+/**
+ * onenand_probe - [OneNAND Interface] Probe the OneNAND device
+ * @param mtd MTD device structure
+ */
+static int onenand_probe(struct mtd_info *mtd)
+{
+ struct onenand_chip *this = mtd->priv;
+ int maf_id, dev_id, ver_id;
+ int density;
+ int ret;
+
+ ret = this->chip_probe(mtd);
+ if (ret)
+ return ret;
+
+ /* Read manufacturer and device IDs from Register */
+ maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
+ 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);
+
/* Flash device information */
onenand_print_device_info(dev_id, ver_id);
this->device_id = dev_id;
@@ -3909,6 +3927,9 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
if (!this->unlock_all)
this->unlock_all = onenand_unlock_all;
+ if (!this->chip_probe)
+ this->chip_probe = onenand_chip_probe;
+
if (!this->read_bufferram)
this->read_bufferram = onenand_read_bufferram;
if (!this->write_bufferram)
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index a91fcac1af01..01ab5b3c453b 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -15,7 +15,6 @@
#include <linux/slab.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
-#include <linux/mtd/compatmac.h>
/**
* check_short_pattern - [GENERIC] check if a pattern is in the buffer
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index 2750317cb58f..cb443af3d45f 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -630,6 +630,12 @@ normal:
return 0;
}
+static int s5pc110_chip_probe(struct mtd_info *mtd)
+{
+ /* Now just return 0 */
+ return 0;
+}
+
static int s3c_onenand_bbt_wait(struct mtd_info *mtd, int state)
{
unsigned int flags = INT_ACT | LOAD_CMP;
@@ -757,6 +763,7 @@ static void s3c_onenand_setup(struct mtd_info *mtd)
/* Use generic onenand functions */
onenand->cmd_map = s5pc1xx_cmd_map;
this->read_bufferram = s5pc110_read_bufferram;
+ this->chip_probe = s5pc110_chip_probe;
return;
} else {
BUG();
@@ -781,7 +788,6 @@ static int s3c_onenand_probe(struct platform_device *pdev)
struct mtd_info *mtd;
struct resource *r;
int size, err;
- unsigned long onenand_ctrl_cfg = 0;
pdata = pdev->dev.platform_data;
/* No need to check pdata. the platform data is optional */
@@ -900,14 +906,6 @@ static int s3c_onenand_probe(struct platform_device *pdev)
}
onenand->phys_base = onenand->base_res->start;
-
- onenand_ctrl_cfg = readl(onenand->dma_addr + 0x100);
- if ((onenand_ctrl_cfg & ONENAND_SYS_CFG1_SYNC_WRITE) &&
- onenand->dma_addr)
- writel(onenand_ctrl_cfg & ~ONENAND_SYS_CFG1_SYNC_WRITE,
- onenand->dma_addr + 0x100);
- else
- onenand_ctrl_cfg = 0;
}
if (onenand_scan(mtd, 1)) {
@@ -915,10 +913,7 @@ static int s3c_onenand_probe(struct platform_device *pdev)
goto scan_failed;
}
- if (onenand->type == TYPE_S5PC110) {
- if (onenand_ctrl_cfg && onenand->dma_addr)
- writel(onenand_ctrl_cfg, onenand->dma_addr + 0x100);
- } else {
+ if (onenand->type != TYPE_S5PC110) {
/* S3C doesn't handle subpage write */
mtd->subpage_sft = 0;
this->subpagesize = mtd->writesize;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-20 02:46:12 +0300