aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mtd/nand
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/ams-delta.c17
-rw-r--r--drivers/mtd/nand/autcpu12.c10
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.c10
-rw-r--r--drivers/mtd/nand/h1910.c2
-rw-r--r--drivers/mtd/nand/orion_nand.c47
5 files changed, 65 insertions, 21 deletions
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index 73416951f4c1..861ca8f7e47d 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -212,18 +212,17 @@ static int __devinit ams_delta_init(struct platform_device *pdev)
/* Link the private data with the MTD structure */
ams_delta_mtd->priv = this;
- if (!request_mem_region(res->start, resource_size(res),
- dev_name(&pdev->dev))) {
- dev_err(&pdev->dev, "request_mem_region failed\n");
- err = -EBUSY;
- goto out_free;
- }
+ /*
+ * Don't try to request the memory region from here,
+ * it should have been already requested from the
+ * gpio-omap driver and requesting it again would fail.
+ */
io_base = ioremap(res->start, resource_size(res));
if (io_base == NULL) {
dev_err(&pdev->dev, "ioremap failed\n");
err = -EIO;
- goto out_release_io;
+ goto out_free;
}
this->priv = io_base;
@@ -271,8 +270,6 @@ out_gpio:
platform_set_drvdata(pdev, NULL);
gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB);
iounmap(io_base);
-out_release_io:
- release_mem_region(res->start, resource_size(res));
out_free:
kfree(ams_delta_mtd);
out:
@@ -285,7 +282,6 @@ out_free:
static int __devexit ams_delta_cleanup(struct platform_device *pdev)
{
void __iomem *io_base = platform_get_drvdata(pdev);
- struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
/* Release resources, unregister device */
nand_release(ams_delta_mtd);
@@ -293,7 +289,6 @@ static int __devexit ams_delta_cleanup(struct platform_device *pdev)
gpio_free_array(_mandatory_gpio, ARRAY_SIZE(_mandatory_gpio));
gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB);
iounmap(io_base);
- release_mem_region(res->start, resource_size(res));
/* Free the MTD device structure */
kfree(ams_delta_mtd);
diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c
index 2e42ec2e8ff4..04769a49a7cb 100644
--- a/drivers/mtd/nand/autcpu12.c
+++ b/drivers/mtd/nand/autcpu12.c
@@ -102,10 +102,10 @@ static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd,
void __iomem *addr;
unsigned char bits;
- addr = CS89712_VIRT_BASE + AUTCPU12_SMC_PORT_OFFSET;
- bits = (ctrl & NAND_CLE) << 4;
+ bits = clps_readb(AUTCPU12_SMC_PORT_OFFSET) & ~0x30;
+ bits |= (ctrl & NAND_CLE) << 4;
bits |= (ctrl & NAND_ALE) << 2;
- writeb((readb(addr) & ~0x30) | bits, addr);
+ clps_writeb(bits, AUTCPU12_SMC_PORT_OFFSET);
addr = autcpu12_fio_base + AUTCPU12_SMC_SELECT_OFFSET;
writeb((readb(addr) & ~0x1) | (ctrl & NAND_NCE), addr);
@@ -120,9 +120,7 @@ static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd,
*/
int autcpu12_device_ready(struct mtd_info *mtd)
{
- void __iomem *addr = CS89712_VIRT_BASE + AUTCPU12_SMC_PORT_OFFSET;
-
- return readb(addr) & AUTCPU12_SMC_RDY;
+ return clps_readb(AUTCPU12_SMC_PORT_OFFSET) & AUTCPU12_SMC_RDY;
}
/*
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 75b1dde16358..b68e04310bd8 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/mtd/gpmi-nand.h>
#include <linux/mtd/partitions.h>
+#include <linux/pinctrl/consumer.h>
#include "gpmi-nand.h"
/* add our owner bbt descriptor */
@@ -266,6 +267,7 @@ int start_dma_without_bch_irq(struct gpmi_nand_data *this,
desc->callback = dma_irq_callback;
desc->callback_param = this;
dmaengine_submit(desc);
+ dma_async_issue_pending(get_dma_chan(this));
/* Wait for the interrupt from the DMA block. */
err = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000));
@@ -475,6 +477,7 @@ acquire_err:
static int __devinit acquire_resources(struct gpmi_nand_data *this)
{
struct resources *res = &this->resources;
+ struct pinctrl *pinctrl;
int ret;
ret = acquire_register_block(this, GPMI_NAND_GPMI_REGS_ADDR_RES_NAME);
@@ -493,6 +496,12 @@ static int __devinit acquire_resources(struct gpmi_nand_data *this)
if (ret)
goto exit_dma_channels;
+ pinctrl = devm_pinctrl_get_select_default(&this->pdev->dev);
+ if (IS_ERR(pinctrl)) {
+ ret = PTR_ERR(pinctrl);
+ goto exit_pin;
+ }
+
res->clock = clk_get(&this->pdev->dev, NULL);
if (IS_ERR(res->clock)) {
pr_err("can not get the clock\n");
@@ -502,6 +511,7 @@ static int __devinit acquire_resources(struct gpmi_nand_data *this)
return 0;
exit_clock:
+exit_pin:
release_dma_channels(this);
exit_dma_channels:
release_bch_irq(this);
diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c
index 11e487813428..9bf5ce5fa22d 100644
--- a/drivers/mtd/nand/h1910.c
+++ b/drivers/mtd/nand/h1910.c
@@ -24,7 +24,7 @@
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <asm/io.h>
-#include <mach/hardware.h> /* for CLPS7111_VIRT_BASE */
+#include <mach/hardware.h>
#include <asm/sizes.h>
#include <mach/h1900-gpio.h>
#include <mach/ipaq.h>
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index 1d3bfb26080c..0f50ef38b87b 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/of.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
@@ -74,11 +75,13 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
static int __init orion_nand_probe(struct platform_device *pdev)
{
struct mtd_info *mtd;
+ struct mtd_part_parser_data ppdata = {};
struct nand_chip *nc;
struct orion_nand_data *board;
struct resource *res;
void __iomem *io_base;
int ret = 0;
+ u32 val = 0;
nc = kzalloc(sizeof(struct nand_chip) + sizeof(struct mtd_info), GFP_KERNEL);
if (!nc) {
@@ -101,7 +104,32 @@ static int __init orion_nand_probe(struct platform_device *pdev)
goto no_res;
}
- board = pdev->dev.platform_data;
+ if (pdev->dev.of_node) {
+ board = devm_kzalloc(&pdev->dev, sizeof(struct orion_nand_data),
+ GFP_KERNEL);
+ if (!board) {
+ printk(KERN_ERR "orion_nand: failed to allocate board structure.\n");
+ ret = -ENOMEM;
+ goto no_res;
+ }
+ if (!of_property_read_u32(pdev->dev.of_node, "cle", &val))
+ board->cle = (u8)val;
+ else
+ board->cle = 0;
+ if (!of_property_read_u32(pdev->dev.of_node, "ale", &val))
+ board->ale = (u8)val;
+ else
+ board->ale = 1;
+ if (!of_property_read_u32(pdev->dev.of_node,
+ "bank-width", &val))
+ board->width = (u8)val * 8;
+ else
+ board->width = 8;
+ if (!of_property_read_u32(pdev->dev.of_node,
+ "chip-delay", &val))
+ board->chip_delay = (u8)val;
+ } else
+ board = pdev->dev.platform_data;
mtd->priv = nc;
mtd->owner = THIS_MODULE;
@@ -115,6 +143,10 @@ static int __init orion_nand_probe(struct platform_device *pdev)
if (board->chip_delay)
nc->chip_delay = board->chip_delay;
+ WARN(board->width > 16,
+ "%d bit bus width out of range",
+ board->width);
+
if (board->width == 16)
nc->options |= NAND_BUSWIDTH_16;
@@ -129,8 +161,9 @@ static int __init orion_nand_probe(struct platform_device *pdev)
}
mtd->name = "orion_nand";
- ret = mtd_device_parse_register(mtd, NULL, NULL, board->parts,
- board->nr_parts);
+ ppdata.of_node = pdev->dev.of_node;
+ ret = mtd_device_parse_register(mtd, NULL, &ppdata,
+ board->parts, board->nr_parts);
if (ret) {
nand_release(mtd);
goto no_dev;
@@ -161,11 +194,19 @@ static int __devexit orion_nand_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static struct of_device_id orion_nand_of_match_table[] = {
+ { .compatible = "mrvl,orion-nand", },
+ {},
+};
+#endif
+
static struct platform_driver orion_nand_driver = {
.remove = __devexit_p(orion_nand_remove),
.driver = {
.name = "orion_nand",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(orion_nand_of_match_table),
},
};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.