[PATCH] Make omap-nand-flash driver work after MTD update

Make omap-nand-flash driver work after MTD update

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

diff --git a/drivers/mtd/nand/omap-nand-flash.c b/drivers/mtd/nand/omap-nand-flash.c
index 35a34088f99059d0f82a4dff10e26c3abd680b47..a231e18b0d609063dde350ead4d69060b838e9c9 100644 (file)
--- a/drivers/mtd/nand/omap-nand-flash.c
+++ b/drivers/mtd/nand/omap-nand-flash.c
@@ -11,6 +11,7 @@
 
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/delay.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -44,21 +45,25 @@ struct omap_nand_info {
 /*
  *     hardware specific access to control-lines
  *     NOTE:  boards may use different bits for these!!
+ *
+ *     ctrl:
+ *     NAND_NCE: bit 0 - don't care
+ *     NAND_CLE: bit 1 -> bit 1  (0x0002)
+ *     NAND_ALE: bit 2 -> bit 2  (0x0004)
  */
-#define        MASK_CLE        0x02
-#define        MASK_ALE        0x04
-static void omap_nand_hwcontrol(struct mtd_info *mtd, int cmd)
+
+static void omap_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-       struct nand_chip *this = mtd->priv;
-       unsigned long IO_ADDR_W = (unsigned long) this->IO_ADDR_W;
-
-       switch (cmd) {
-               case NAND_CTL_SETCLE: IO_ADDR_W |= MASK_CLE; break;
-               case NAND_CTL_CLRCLE: IO_ADDR_W &= ~MASK_CLE; break;
-               case NAND_CTL_SETALE: IO_ADDR_W |= MASK_ALE; break;
-               case NAND_CTL_CLRALE: IO_ADDR_W &= ~MASK_ALE; break;
-       }
-       this->IO_ADDR_W = (void __iomem *) IO_ADDR_W;
+       struct nand_chip *chip = mtd->priv;
+       unsigned long mask;
+
+       if (cmd == NAND_CMD_NONE)
+               return;
+
+       mask = (ctrl & NAND_CLE) ? 0x02 : 0;
+       if (ctrl & NAND_ALE)
+               mask |= 0x04;
+       writeb(cmd, (unsigned long)chip->IO_ADDR_W | mask);
 }
 
 static int omap_nand_dev_ready(struct mtd_info *mtd)
@@ -76,12 +81,10 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
        unsigned long                   size = res->end - res->start + 1;
        int                             err;
 
-       info = kmalloc(sizeof(struct omap_nand_info), GFP_KERNEL);
+       info = kzalloc(sizeof(struct omap_nand_info), GFP_KERNEL);
        if (!info)
                return -ENOMEM;
 
-       memset(info, 0, sizeof(struct omap_nand_info));
-
        if (!request_mem_region(res->start, size, pdev->dev.driver->name)) {
                err = -EBUSY;
                goto out_free_info;
@@ -93,8 +96,8 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
                goto out_release_mem_region;
        }
        info->nand.IO_ADDR_W = info->nand.IO_ADDR_R;
-       info->nand.hwcontrol = omap_nand_hwcontrol;
-       info->nand.eccmode = NAND_ECC_SOFT;
+       info->nand.cmd_ctrl = omap_nand_hwcontrol;
+       info->nand.ecc.mode = NAND_ECC_SOFT;
        info->nand.options = pdata->options;
        if (pdata->dev_ready)
                info->nand.dev_ready = omap_nand_dev_ready;