#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
-#include <asm/arch/memmap.h>
+#include <arch/memmap.h>
#include <hwregs/reg_map.h>
#include <hwregs/reg_rdwr.h>
#include <hwregs/pio_defs.h>
#define ALE_BIT 11
#define CE_BIT 12
+struct mtd_info_wrapper {
+ struct mtd_info info;
+ struct nand_chip chip;
+};
+
/* Bitmask for control pins */
#define PIN_BITMASK ((1 << CE_BIT) | (1 << CLE_BIT) | (1 << ALE_BIT))
/*
* read device ready pin
*/
-int crisv32_device_ready(struct mtd_info *mtd)
+static int crisv32_device_ready(struct mtd_info *mtd)
{
reg_pio_r_din din = REG_RD(pio, regi_pio, r_din);
return din.rdy;
void __iomem *read_cs;
void __iomem *write_cs;
+ struct mtd_info_wrapper *wrapper;
struct nand_chip *this;
int err = 0;
REG_WR(pio, regi_pio, rw_oe, oe);
/* Allocate memory for MTD device structure and private data */
- crisv32_mtd = kmalloc(sizeof(struct mtd_info) +
- sizeof(struct nand_chip), GFP_KERNEL);
- if (!crisv32_mtd) {
+ wrapper = kzalloc(sizeof(struct mtd_info_wrapper), GFP_KERNEL);
+ if (!wrapper) {
printk(KERN_ERR "Unable to allocate CRISv32 NAND MTD "
"device structure.\n");
err = -ENOMEM;
rw_io_access0);
/* Get pointer to private data */
- this = (struct nand_chip *) (&crisv32_mtd[1]);
-
- /* Initialize structures */
- memset((char *) crisv32_mtd, 0, sizeof(struct mtd_info));
- memset((char *) this, 0, sizeof(struct nand_chip));
+ this = &wrapper->chip;
+ crisv32_mtd = &wrapper->info;
/* Link the private data with the MTD structure */
crisv32_mtd->priv = this;
return crisv32_mtd;
out_mtd:
- kfree(crisv32_mtd);
+ kfree(wrapper);
return NULL;
}