mirror of https://github.com/hak5/openwrt.git
Remove the old rbmipsnand driver, we now use the plat_nand driver
SVN-Revision: 9188lede-17.01
Florian Fainelli
parent
e54eec19b7
commit
0f43633263
|
|
@ -1,219 +0,0 @@
|
|||
#include <linux/io.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/mtd/nand.h>
|
||||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
#include <linux/delay.h>
|
||||
|
||||
#include <asm/io.h>
|
||||
#include <asm/irq.h>
|
||||
#include <asm/bootinfo.h>
|
||||
|
||||
#define IDT434_REG_BASE ((volatile void *) KSEG1ADDR(0x18000000))
|
||||
|
||||
#define GPIOF 0x050000
|
||||
#define GPIOC 0x050004
|
||||
#define GPIOD 0x050008
|
||||
|
||||
#define GPIO_RDY (1 << 0x08)
|
||||
#define GPIO_WPX (1 << 0x09)
|
||||
#define GPIO_ALE (1 << 0x0a)
|
||||
#define GPIO_CLE (1 << 0x0b)
|
||||
|
||||
#define DEV2BASE 0x010020
|
||||
|
||||
#define LO_WPX (1 << 0)
|
||||
#define LO_ALE (1 << 1)
|
||||
#define LO_CLE (1 << 2)
|
||||
#define LO_CEX (1 << 3)
|
||||
#define LO_FOFF (1 << 5)
|
||||
#define LO_SPICS (1 << 6)
|
||||
#define LO_ULED (1 << 7)
|
||||
|
||||
#define MEM32(x) *((volatile unsigned *) (x))
|
||||
|
||||
extern char *board_type;
|
||||
|
||||
struct rb500_nand_info {
|
||||
struct nand_chip chip;
|
||||
struct mtd_info mtd;
|
||||
void __iomem *io_base;
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
int nr_parts;
|
||||
struct mtd_partition *parts;
|
||||
#endif
|
||||
int init_ok;
|
||||
int flags1;
|
||||
int flags2;
|
||||
};
|
||||
|
||||
static struct mtd_partition partition_info[] = {
|
||||
{
|
||||
name:"RouterBoard NAND Boot",
|
||||
offset:0,
|
||||
size:4 * 1024 * 1024},
|
||||
{
|
||||
name:"rootfs",
|
||||
offset:MTDPART_OFS_NXTBLK,
|
||||
size:MTDPART_SIZ_FULL}
|
||||
};
|
||||
|
||||
extern void changeLatchU5(unsigned char orMask, unsigned char nandMask);
|
||||
|
||||
static int rb500_dev_ready(struct mtd_info *mtd)
|
||||
{
|
||||
return MEM32(IDT434_REG_BASE + GPIOD) & GPIO_RDY;
|
||||
}
|
||||
|
||||
/*
|
||||
* hardware specific access to control-lines
|
||||
*
|
||||
* ctrl:
|
||||
* NAND_CLE: bit 2 -> bit 3
|
||||
* NAND_ALE: bit 3 -> bit 2
|
||||
*/
|
||||
static void rbmips_hwcontrol500(struct mtd_info *mtd, int cmd,
|
||||
unsigned int ctrl)
|
||||
{
|
||||
struct nand_chip *chip = mtd->priv;
|
||||
unsigned char orbits, nandbits;
|
||||
|
||||
if (ctrl & NAND_CTRL_CHANGE) {
|
||||
|
||||
orbits = (ctrl & NAND_CLE) << 1;
|
||||
orbits |= (ctrl & NAND_ALE) >> 1;
|
||||
|
||||
nandbits = (~ctrl & NAND_CLE) << 1;
|
||||
nandbits |= (~ctrl & NAND_ALE) >> 1;
|
||||
|
||||
changeLatchU5(orbits, nandbits);
|
||||
}
|
||||
if (cmd != NAND_CMD_NONE)
|
||||
writeb(cmd, chip->IO_ADDR_W);
|
||||
|
||||
}
|
||||
|
||||
unsigned get_rbnand_block_size(struct rb500_nand_info *data)
|
||||
{
|
||||
if (data->init_ok)
|
||||
return data->mtd.writesize;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(get_rbnand_block_size);
|
||||
|
||||
static int rbmips_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct rb500_nand_info *data;
|
||||
int res = 0;
|
||||
int *b;
|
||||
|
||||
/* Allocate memory for the structure */
|
||||
data = kzalloc(sizeof(*data), GFP_KERNEL);
|
||||
if (!data) {
|
||||
dev_err(&pdev->dev, "Failed to allocate device structure\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
data->io_base = ioremap(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start + 1);
|
||||
|
||||
if (data->io_base == NULL) {
|
||||
dev_err(&pdev->dev, "ioremap failed\n");
|
||||
kfree(data);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (!strcmp(board_type, "500r5")) {
|
||||
data->flags1 = LO_FOFF | LO_CEX;
|
||||
data->flags2 = LO_ULED | LO_ALE | LO_CLE | LO_WPX;
|
||||
}
|
||||
else {
|
||||
data->flags1 = LO_WPX | LO_FOFF | LO_CEX;
|
||||
data->flags2 = LO_ULED | LO_ALE | LO_CLE;
|
||||
}
|
||||
|
||||
changeLatchU5(data->flags1, data->flags2);
|
||||
|
||||
data->chip.cmd_ctrl = rbmips_hwcontrol500;
|
||||
|
||||
data->chip.dev_ready = rb500_dev_ready;
|
||||
data->chip.IO_ADDR_W = (unsigned char *)KSEG1ADDR(MEM32(IDT434_REG_BASE + DEV2BASE));
|
||||
data->chip.IO_ADDR_R = data->chip.IO_ADDR_W;
|
||||
|
||||
data->chip.ecc.mode = NAND_ECC_SOFT;
|
||||
data->chip.chip_delay = 25;
|
||||
data->chip.options |= NAND_NO_AUTOINCR;
|
||||
|
||||
data->chip.priv = &data;
|
||||
data->mtd.priv = &data->chip;
|
||||
data->mtd.owner = THIS_MODULE;
|
||||
|
||||
b = (int *) KSEG1ADDR(0x18010020);
|
||||
printk("dev2base 0x%08x mask 0x%08x c 0x%08x tc 0x%08x\n", b[0],
|
||||
b[1], b[2], b[3]);
|
||||
|
||||
platform_set_drvdata(pdev, data);
|
||||
|
||||
/* Why do we need to scan 4 times ? */
|
||||
if (nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1)) {
|
||||
printk(KERN_INFO "RB500 nand device not found\n");
|
||||
res = -ENXIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "RB500 NAND\n");
|
||||
add_mtd_partitions(&data->mtd, partition_info, 2);
|
||||
data->init_ok = 1;
|
||||
|
||||
res = add_mtd_device(&data->mtd);
|
||||
if (!res)
|
||||
return res;
|
||||
|
||||
nand_release(&data->mtd);
|
||||
out:
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
iounmap(data->io_base);
|
||||
kfree(data);
|
||||
return res;
|
||||
}
|
||||
|
||||
static int __devexit rbmips_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct rb500_nand_info *data = platform_get_drvdata(pdev);
|
||||
|
||||
nand_release(&data->mtd);
|
||||
iounmap(data->io_base);
|
||||
kfree(data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver rb500_nand_driver = {
|
||||
.probe = rbmips_probe,
|
||||
.remove = rbmips_remove,
|
||||
.driver = {
|
||||
.name = "rb500-nand",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
static int __init rb500_nand_init(void)
|
||||
{
|
||||
int err;
|
||||
err = platform_driver_register(&rb500_nand_driver);
|
||||
return err;
|
||||
}
|
||||
|
||||
static void __exit rb500_nand_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&rb500_nand_driver);
|
||||
}
|
||||
|
||||
module_init(rb500_nand_init);
|
||||
module_exit(rb500_nand_exit);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_AUTHOR("David Goodenough, Felix Fietkau, Florian Fainelli");
|
||||
MODULE_DESCRIPTION("RouterBOARD 500 NAND driver");
|
||||
|
|
@ -1,29 +0,0 @@
|
|||
Index: linux-2.6.21.1/drivers/mtd/nand/Kconfig
|
||||
===================================================================
|
||||
--- linux-2.6.21.1.orig/drivers/mtd/nand/Kconfig 2007-04-27 23:49:26.000000000 +0200
|
||||
+++ linux-2.6.21.1/drivers/mtd/nand/Kconfig 2007-06-07 01:31:30.927069952 +0200
|
||||
@@ -75,6 +75,12 @@
|
||||
help
|
||||
Support for NAND flash on Technologic Systems TS-7250 platform.
|
||||
|
||||
+config MTD_NAND_RB500
|
||||
+ tristate "NAND Flash device on RB500 board"
|
||||
+ depends on MTD_NAND
|
||||
+ help
|
||||
+ Support for NAND flash on RB500 platform.
|
||||
+
|
||||
config MTD_NAND_IDS
|
||||
tristate
|
||||
|
||||
Index: linux-2.6.21.1/drivers/mtd/nand/Makefile
|
||||
===================================================================
|
||||
--- linux-2.6.21.1.orig/drivers/mtd/nand/Makefile 2007-04-27 23:49:26.000000000 +0200
|
||||
+++ linux-2.6.21.1/drivers/mtd/nand/Makefile 2007-06-07 01:31:30.927069952 +0200
|
||||
@@ -10,6 +10,7 @@
|
||||
obj-$(CONFIG_MTD_NAND_SPIA) += spia.o
|
||||
obj-$(CONFIG_MTD_NAND_AMS_DELTA) += ams-delta.o
|
||||
obj-$(CONFIG_MTD_NAND_TOTO) += toto.o
|
||||
+obj-$(CONFIG_MTD_NAND_RB500) += rbmipsnand.o
|
||||
obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o
|
||||
obj-$(CONFIG_MTD_NAND_EDB7312) += edb7312.o
|
||||
obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o
|
||||
Loading…
Reference in New Issue