mtd: nand: xway: add nandaddr to own struct

Instead of using IO_ADDR_W and IO_ADDR_R use an own pointer to the NAND
controller memory area.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c
index 429ba02..1f2948c 100644 (file)
--- a/drivers/mtd/nand/xway_nand.c
+++ b/drivers/mtd/nand/xway_nand.c
@@ -66,22 +66,23 @@
 struct xway_nand_data {
        struct nand_chip        chip;
        unsigned long           csflags;
+       void __iomem            *nandaddr;
 };
 
 static u8 xway_readb(struct mtd_info *mtd, int op)
 {
        struct nand_chip *chip = mtd_to_nand(mtd);
-       void __iomem *nandaddr = chip->IO_ADDR_R;
+       struct xway_nand_data *data = nand_get_controller_data(chip);
 
-       return readb(nandaddr + op);
+       return readb(data->nandaddr + op);
 }
 
 static void xway_writeb(struct mtd_info *mtd, int op, u8 value)
 {
        struct nand_chip *chip = mtd_to_nand(mtd);
-       void __iomem *nandaddr = chip->IO_ADDR_W;
+       struct xway_nand_data *data = nand_get_controller_data(chip);
 
-       writeb(value, nandaddr + op);
+       writeb(value, data->nandaddr + op);
 }
 
 static void xway_select_chip(struct mtd_info *mtd, int select)
@@ -154,7 +155,6 @@ static int xway_nand_probe(struct platform_device *pdev)
        struct mtd_info *mtd;
        struct resource *res;
        int err;
-       void __iomem *nandaddr;
        u32 cs;
        u32 cs_flag = 0;
 
@@ -165,16 +165,14 @@ static int xway_nand_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       nandaddr = devm_ioremap_resource(&pdev->dev, res);
-       if (IS_ERR(nandaddr))
-               return PTR_ERR(nandaddr);
+       data->nandaddr = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(data->nandaddr))
+               return PTR_ERR(data->nandaddr);
 
        nand_set_flash_node(&data->chip, pdev->dev.of_node);
        mtd = nand_to_mtd(&data->chip);
        mtd->dev.parent = &pdev->dev;
 
-       data->chip.IO_ADDR_R = nandaddr;
-       data->chip.IO_ADDR_W = nandaddr;
        data->chip.cmd_ctrl = xway_cmd_ctrl;
        data->chip.dev_ready = xway_dev_ready;
        data->chip.select_chip = xway_select_chip;
@@ -195,16 +193,16 @@ static int xway_nand_probe(struct platform_device *pdev)
                cs_flag = NAND_CON_IN_CS1 | NAND_CON_OUT_CS1;
 
        /* setup the EBU to run in NAND mode on our base addr */
-       ltq_ebu_w32(CPHYSADDR(nandaddr)
-               | ADDSEL1_MASK(3) | ADDSEL1_REGEN, EBU_ADDSEL1);
+       ltq_ebu_w32(CPHYSADDR(data->nandaddr)
+                   | ADDSEL1_MASK(3) | ADDSEL1_REGEN, EBU_ADDSEL1);
 
        ltq_ebu_w32(BUSCON1_SETUP | BUSCON1_BCGEN_RES | BUSCON1_WAITWRC2
-               | BUSCON1_WAITRDC2 | BUSCON1_HOLDC1 | BUSCON1_RECOVC1
-               | BUSCON1_CMULT4, LTQ_EBU_BUSCON1);
+                   | BUSCON1_WAITRDC2 | BUSCON1_HOLDC1 | BUSCON1_RECOVC1
+                   | BUSCON1_CMULT4, LTQ_EBU_BUSCON1);
 
        ltq_ebu_w32(NAND_CON_NANDM | NAND_CON_CSMUX | NAND_CON_CS_P
-               | NAND_CON_SE_P | NAND_CON_WP_P | NAND_CON_PRE_P
-               | cs_flag, EBU_NAND_CON);
+                   | NAND_CON_SE_P | NAND_CON_WP_P | NAND_CON_PRE_P
+                   | cs_flag, EBU_NAND_CON);
 
        /* Scan to find existence of the device */
        err = nand_scan(mtd, 1);