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mtd: mxc_nand: swap iomem resource order 

The i.MX v3 nand controller (i.MX5) needs two memory resources.
Traditionally we have the AXI resource first. For sorting in this
driver into the devicetree it feels much more natural to have the
IP resource first. This patch swaps the ordering of these two
resources.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Sascha Hauer 2012-06-06 12:33:14 +02:00 committed by David Woodhouse
parent e4a09cbf2d
commit 71885b650a
2 changed files with 24 additions and 22 deletions
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11
arch/arm/plat-mxc/devices/platform-mxc_nand.c
View File

@ -63,10 +63,6 @@ struct platform_device *__init imx_add_mxc_nand(
/* AXI has to come first, that's how the mxc_nand driver expect it */
struct resource res[] = {
{
.start = data->axibase,
.end = data->axibase + SZ_16K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = data->iobase,
.end = data->iobase + data->iosize - 1,
.flags = IORESOURCE_MEM,
@ -74,10 +70,13 @@ struct platform_device *__init imx_add_mxc_nand(
.start = data->irq,
.end = data->irq,
.flags = IORESOURCE_IRQ,
}, {
.start = data->axibase,
.end = data->axibase + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
};
return imx_add_platform_device("mxc_nand", data->id,
res + !data->axibase,
ARRAY_SIZE(res) - !data->axibase,
res, ARRAY_SIZE(res) - !data->axibase,
pdata, sizeof(*pdata));
}

35
drivers/mtd/nand/mxc_nand.c
View File

@ -1376,7 +1376,25 @@ static int __init mxcnd_probe(struct platform_device *pdev)
if (IS_ERR(host->clk))
return PTR_ERR(host->clk);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
err = mxcnd_probe_dt(host);
if (err > 0)
err = mxcnd_probe_pdata(host);
if (err < 0)
return err;
if (host->devtype_data->needs_ip) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
host->regs_ip = devm_request_and_ioremap(&pdev->dev, res);
if (!host->regs_ip)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
} else {
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
}
if (!res)
return -ENODEV;
@ -1386,12 +1404,6 @@ static int __init mxcnd_probe(struct platform_device *pdev)
host->main_area0 = host->base;
err = mxcnd_probe_dt(host);
if (err > 0)
err = mxcnd_probe_pdata(host);
if (err < 0)
return err;
if (host->devtype_data->regs_offset)
host->regs = host->base + host->devtype_data->regs_offset;
host->spare0 = host->base + host->devtype_data->spare0_offset;
@ -1405,15 +1417,6 @@ static int __init mxcnd_probe(struct platform_device *pdev)
this->ecc.size = 512;
this->ecc.layout = host->devtype_data->ecclayout_512;
if (host->devtype_data->needs_ip) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res)
return -ENODEV;
host->regs_ip = devm_request_and_ioremap(&pdev->dev, res);
if (!host->regs_ip)
return -ENOMEM;
}
if (host->pdata.hw_ecc) {
this->ecc.calculate = mxc_nand_calculate_ecc;
this->ecc.hwctl = mxc_nand_enable_hwecc;