#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>
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) {
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;
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;
}
mtd->name = "orion_nand";
- ret = mtd_device_parse_register(mtd, NULL, 0,
+ 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);
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),
},
};