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-rw-r--r--drivers/mtd/nand/autcpu12.c10
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.c9
-rw-r--r--drivers/mtd/nand/h1910.c2
-rw-r--r--drivers/mtd/nand/mxc_nand.c6
-rw-r--r--drivers/mtd/nand/orion_nand.c65
5 files changed, 79 insertions, 13 deletions
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 9ec51cec2e14..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 */
@@ -476,6 +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);
@@ -494,6 +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");
@@ -503,6 +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/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index cc0678a967c1..9e374e9bd296 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -690,7 +690,7 @@ static void mxc_nand_select_chip(struct mtd_info *mtd, int chip)
if (chip == -1) {
/* Disable the NFC clock */
if (host->clk_act) {
- clk_disable(host->clk);
+ clk_disable_unprepare(host->clk);
host->clk_act = 0;
}
return;
@@ -698,7 +698,7 @@ static void mxc_nand_select_chip(struct mtd_info *mtd, int chip)
if (!host->clk_act) {
/* Enable the NFC clock */
- clk_enable(host->clk);
+ clk_prepare_enable(host->clk);
host->clk_act = 1;
}
@@ -1078,7 +1078,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
goto eclk;
}
- clk_enable(host->clk);
+ clk_prepare_enable(host->clk);
host->clk_act = 1;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index 1d3bfb26080c..513dc88a05ca 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -13,9 +13,12 @@
#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>
+#include <linux/clk.h>
+#include <linux/err.h>
#include <asm/io.h>
#include <asm/sizes.h>
#include <mach/hardware.h>
@@ -74,11 +77,14 @@ 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;
+ struct clk *clk;
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 +107,32 @@ 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 +146,10 @@ 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;
@@ -123,14 +158,23 @@ static int __init orion_nand_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, mtd);
+ /* Not all platforms can gate the clock, so it is not
+ an error if the clock does not exists. */
+ clk = clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(clk)) {
+ clk_prepare_enable(clk);
+ clk_put(clk);
+ }
+
if (nand_scan(mtd, 1)) {
ret = -ENXIO;
goto no_dev;
}
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;
@@ -151,6 +195,7 @@ static int __devexit orion_nand_remove(struct platform_device *pdev)
{
struct mtd_info *mtd = platform_get_drvdata(pdev);
struct nand_chip *nc = mtd->priv;
+ struct clk *clk;
nand_release(mtd);
@@ -158,14 +203,28 @@ static int __devexit orion_nand_remove(struct platform_device *pdev)
kfree(nc);
+ clk = clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(clk)) {
+ clk_disable_unprepare(clk);
+ clk_put(clk);
+ }
+
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.