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From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/4] mtd nand mxc_nand: swap iomem resource order
Date: Wed,  6 Jun 2012 12:33:14 +0200	[thread overview]
Message-ID: <1338978796-26129-3-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1338978796-26129-1-git-send-email-s.hauer@pengutronix.de>

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>
---
 arch/arm/plat-mxc/devices/platform-mxc_nand.c |   11 ++++----
 drivers/mtd/nand/mxc_nand.c                   |   35 ++++++++++++++-----------
 2 files changed, 24 insertions(+), 22 deletions(-)

diff --git a/arch/arm/plat-mxc/devices/platform-mxc_nand.c b/arch/arm/plat-mxc/devices/platform-mxc_nand.c
index 1568f39..95b75cc 100644
--- a/arch/arm/plat-mxc/devices/platform-mxc_nand.c
+++ b/arch/arm/plat-mxc/devices/platform-mxc_nand.c
@@ -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));
 }
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index a1136f3..cc0f6e7 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -1355,7 +1355,25 @@ 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;
 
@@ -1365,12 +1383,6 @@ 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;
@@ -1384,15 +1396,6 @@ 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;
-- 
1.7.10

  parent reply	other threads:[~2012-06-06 10:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-06 10:33 No subject Sascha Hauer
2012-06-06 10:33 ` [PATCH 1/4] mtd nand mxc_nand: Use managed resources Sascha Hauer
2012-06-06 10:33 ` Sascha Hauer [this message]
2012-06-06 10:33 ` [PATCH 3/4] mtd nand mxc_nand: add i.MX53 support Sascha Hauer
2012-06-06 10:33 ` [PATCH 4/4] ARM i.MX5: Add nand oftree support Sascha Hauer
2012-06-07  2:29   ` Shawn Guo
2012-06-07  9:43     ` Sascha Hauer
2012-06-06 10:39 ` [PATCH] i.MX5 nand support Sascha Hauer
2012-06-06 14:39 ` Artem Bityutskiy
2012-06-07 10:11   ` Sascha Hauer
2012-06-07 12:45     ` Artem Bityutskiy
  -- strict thread matches above, loose matches on Subject: below --
2012-08-29  7:40 [PATCH resend] i.MX53 Nand support Sascha Hauer
2012-08-29  7:40 ` [PATCH 2/4] mtd nand mxc_nand: swap iomem resource order Sascha Hauer

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