/*
- * Copyright (c) 2009 Nuvoton technology corporation.
+ * Copyright © 2009 Nuvoton technology corporation.
*
* Wan ZongShun <mcuos.com@gmail.com>
*
#define write_addr_reg(dev, val) \
__raw_writel((val), (dev)->reg + REG_SMADDR)
-struct w90p910_nand {
+struct nuc900_nand {
struct mtd_info mtd;
struct nand_chip chip;
void __iomem *reg;
}
};
-static unsigned char w90p910_nand_read_byte(struct mtd_info *mtd)
+static unsigned char nuc900_nand_read_byte(struct mtd_info *mtd)
{
unsigned char ret;
- struct w90p910_nand *nand;
+ struct nuc900_nand *nand;
- nand = container_of(mtd, struct w90p910_nand, mtd);
+ nand = container_of(mtd, struct nuc900_nand, mtd);
ret = (unsigned char)read_data_reg(nand);
return ret;
}
-static void w90p910_nand_read_buf(struct mtd_info *mtd,
- unsigned char *buf, int len)
+static void nuc900_nand_read_buf(struct mtd_info *mtd,
+ unsigned char *buf, int len)
{
int i;
- struct w90p910_nand *nand;
+ struct nuc900_nand *nand;
- nand = container_of(mtd, struct w90p910_nand, mtd);
+ nand = container_of(mtd, struct nuc900_nand, mtd);
for (i = 0; i < len; i++)
buf[i] = (unsigned char)read_data_reg(nand);
}
-static void w90p910_nand_write_buf(struct mtd_info *mtd,
- const unsigned char *buf, int len)
+static void nuc900_nand_write_buf(struct mtd_info *mtd,
+ const unsigned char *buf, int len)
{
int i;
- struct w90p910_nand *nand;
+ struct nuc900_nand *nand;
- nand = container_of(mtd, struct w90p910_nand, mtd);
+ nand = container_of(mtd, struct nuc900_nand, mtd);
for (i = 0; i < len; i++)
write_data_reg(nand, buf[i]);
}
-static int w90p910_verify_buf(struct mtd_info *mtd,
- const unsigned char *buf, int len)
+static int nuc900_verify_buf(struct mtd_info *mtd,
+ const unsigned char *buf, int len)
{
int i;
- struct w90p910_nand *nand;
+ struct nuc900_nand *nand;
- nand = container_of(mtd, struct w90p910_nand, mtd);
+ nand = container_of(mtd, struct nuc900_nand, mtd);
for (i = 0; i < len; i++) {
if (buf[i] != (unsigned char)read_data_reg(nand))
return 0;
}
-static int w90p910_check_rb(struct w90p910_nand *nand)
+static int nuc900_check_rb(struct nuc900_nand *nand)
{
unsigned int val;
spin_lock(&nand->lock);
return val;
}
-static int w90p910_nand_devready(struct mtd_info *mtd)
+static int nuc900_nand_devready(struct mtd_info *mtd)
{
- struct w90p910_nand *nand;
+ struct nuc900_nand *nand;
int ready;
- nand = container_of(mtd, struct w90p910_nand, mtd);
+ nand = container_of(mtd, struct nuc900_nand, mtd);
- ready = (w90p910_check_rb(nand)) ? 1 : 0;
+ ready = (nuc900_check_rb(nand)) ? 1 : 0;
return ready;
}
-static void w90p910_nand_command_lp(struct mtd_info *mtd,
- unsigned int command, int column, int page_addr)
+static void nuc900_nand_command_lp(struct mtd_info *mtd, unsigned int command,
+ int column, int page_addr)
{
register struct nand_chip *chip = mtd->priv;
- struct w90p910_nand *nand;
+ struct nuc900_nand *nand;
- nand = container_of(mtd, struct w90p910_nand, mtd);
+ nand = container_of(mtd, struct nuc900_nand, mtd);
if (command == NAND_CMD_READOOB) {
column += mtd->writesize;
write_cmd_reg(nand, NAND_CMD_STATUS);
write_cmd_reg(nand, command);
- while (!w90p910_check_rb(nand))
+ while (!nuc900_check_rb(nand))
;
return;
}
-static void w90p910_nand_enable(struct w90p910_nand *nand)
+static void nuc900_nand_enable(struct nuc900_nand *nand)
{
unsigned int val;
spin_lock(&nand->lock);
spin_unlock(&nand->lock);
}
-static int __devinit w90p910_nand_probe(struct platform_device *pdev)
+static int __devinit nuc900_nand_probe(struct platform_device *pdev)
{
- struct w90p910_nand *w90p910_nand;
+ struct nuc900_nand *nuc900_nand;
struct nand_chip *chip;
int retval;
struct resource *res;
retval = 0;
- w90p910_nand = kzalloc(sizeof(struct w90p910_nand), GFP_KERNEL);
- if (!w90p910_nand)
+ nuc900_nand = kzalloc(sizeof(struct nuc900_nand), GFP_KERNEL);
+ if (!nuc900_nand)
return -ENOMEM;
- chip = &(w90p910_nand->chip);
+ chip = &(nuc900_nand->chip);
- w90p910_nand->mtd.priv = chip;
- w90p910_nand->mtd.owner = THIS_MODULE;
- spin_lock_init(&w90p910_nand->lock);
+ nuc900_nand->mtd.priv = chip;
+ nuc900_nand->mtd.owner = THIS_MODULE;
+ spin_lock_init(&nuc900_nand->lock);
- w90p910_nand->clk = clk_get(&pdev->dev, NULL);
- if (IS_ERR(w90p910_nand->clk)) {
+ nuc900_nand->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(nuc900_nand->clk)) {
retval = -ENOENT;
goto fail1;
}
- clk_enable(w90p910_nand->clk);
-
- chip->cmdfunc = w90p910_nand_command_lp;
- chip->dev_ready = w90p910_nand_devready;
- chip->read_byte = w90p910_nand_read_byte;
- chip->write_buf = w90p910_nand_write_buf;
- chip->read_buf = w90p910_nand_read_buf;
- chip->verify_buf = w90p910_verify_buf;
+ clk_enable(nuc900_nand->clk);
+
+ chip->cmdfunc = nuc900_nand_command_lp;
+ chip->dev_ready = nuc900_nand_devready;
+ chip->read_byte = nuc900_nand_read_byte;
+ chip->write_buf = nuc900_nand_write_buf;
+ chip->read_buf = nuc900_nand_read_buf;
+ chip->verify_buf = nuc900_verify_buf;
chip->chip_delay = 50;
chip->options = 0;
chip->ecc.mode = NAND_ECC_SOFT;
goto fail1;
}
- w90p910_nand->reg = ioremap(res->start, resource_size(res));
- if (!w90p910_nand->reg) {
+ nuc900_nand->reg = ioremap(res->start, resource_size(res));
+ if (!nuc900_nand->reg) {
retval = -ENOMEM;
goto fail2;
}
- w90p910_nand_enable(w90p910_nand);
+ nuc900_nand_enable(nuc900_nand);
- if (nand_scan(&(w90p910_nand->mtd), 1)) {
+ if (nand_scan(&(nuc900_nand->mtd), 1)) {
retval = -ENXIO;
goto fail3;
}
- add_mtd_partitions(&(w90p910_nand->mtd), partitions,
+ add_mtd_partitions(&(nuc900_nand->mtd), partitions,
ARRAY_SIZE(partitions));
- platform_set_drvdata(pdev, w90p910_nand);
+ platform_set_drvdata(pdev, nuc900_nand);
return retval;
-fail3: iounmap(w90p910_nand->reg);
+fail3: iounmap(nuc900_nand->reg);
fail2: release_mem_region(res->start, resource_size(res));
-fail1: kfree(w90p910_nand);
+fail1: kfree(nuc900_nand);
return retval;
}
-static int __devexit w90p910_nand_remove(struct platform_device *pdev)
+static int __devexit nuc900_nand_remove(struct platform_device *pdev)
{
- struct w90p910_nand *w90p910_nand = platform_get_drvdata(pdev);
+ struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev);
struct resource *res;
- iounmap(w90p910_nand->reg);
+ iounmap(nuc900_nand->reg);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
- clk_disable(w90p910_nand->clk);
- clk_put(w90p910_nand->clk);
+ clk_disable(nuc900_nand->clk);
+ clk_put(nuc900_nand->clk);
- kfree(w90p910_nand);
+ kfree(nuc900_nand);
platform_set_drvdata(pdev, NULL);
return 0;
}
-static struct platform_driver w90p910_nand_driver = {
- .probe = w90p910_nand_probe,
- .remove = __devexit_p(w90p910_nand_remove),
+static struct platform_driver nuc900_nand_driver = {
+ .probe = nuc900_nand_probe,
+ .remove = __devexit_p(nuc900_nand_remove),
.driver = {
.name = "nuc900-fmi",
.owner = THIS_MODULE,
},
};
-static int __init w90p910_nand_init(void)
+static int __init nuc900_nand_init(void)
{
- return platform_driver_register(&w90p910_nand_driver);
+ return platform_driver_register(&nuc900_nand_driver);
}
-static void __exit w90p910_nand_exit(void)
+static void __exit nuc900_nand_exit(void)
{
- platform_driver_unregister(&w90p910_nand_driver);
+ platform_driver_unregister(&nuc900_nand_driver);
}
-module_init(w90p910_nand_init);
-module_exit(w90p910_nand_exit);
+module_init(nuc900_nand_init);
+module_exit(nuc900_nand_exit);
MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
-MODULE_DESCRIPTION("w90p910 nand driver!");
+MODULE_DESCRIPTION("w90p910/NUC9xx nand driver!");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:nuc900-fmi");