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Commit 37987ba4 authored by Hauke Mehrtens's avatar Hauke Mehrtens Committed by Boris Brezillon
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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: default avatarHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
parent 250d45eb

drivers/mtd/nand/xway_nand.c

+14 −16
Original line number Diff line number Diff line
@@ -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;
@@ -195,7 +193,7 @@ 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)

	ltq_ebu_w32(CPHYSADDR(data->nandaddr)

		    | ADDSEL1_MASK(3) | ADDSEL1_REGEN, EBU_ADDSEL1);



	ltq_ebu_w32(BUSCON1_SETUP | BUSCON1_BCGEN_RES | BUSCON1_WAITWRC2