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authorXiubo Li <Li.Xiubo@freescale.com>2014-06-03 06:38:05 (GMT)
committerMatthew Weigel <Matthew.Weigel@freescale.com>2014-12-11 18:36:18 (GMT)
commitc749d79c70ab4133baa33092513be5ef8ad0abf6 (patch)
treecafdb3cf7e6dbca4e8426c284494c92cfb31043a /drivers/watchdog
parent8785399fdb1d63813ff68acb2a11fc4927361df3 (diff)
downloadlinux-fsl-qoriq-c749d79c70ab4133baa33092513be5ef8ad0abf6.tar.xz
watchdog: imx2_wdt: adds big endianness support.
This watchdog driver will be working on IMX2+, Vybrid, LS1, LS2+ platforms, and will be in different endianness mode in those SoCs: SoCs WDT endian mode ------------------------------------ IMX2+ LE Vybird LE LS1 BE LS2 LE Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> --- This patch is pulled back from upstream: commit f728f4bfc495a588abda4661c09595112677be25 Change-Id: I679a13328e7ee02fbc23dad99a3e672c6186fc4c Reviewed-on: http://git.am.freescale.net:8181/19717 Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com> Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/imx2_wdt.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index f5d33d9..73b58bb 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -30,6 +30,7 @@
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/timer.h>
@@ -263,10 +264,14 @@ static struct regmap_config imx2_wdt_regmap_config = {
static int __init imx2_wdt_probe(struct platform_device *pdev)
{
+ struct device_node *np = pdev->dev.of_node;
struct resource *res;
void __iomem *base;
int ret;
+ if (of_property_read_bool(np, "big-endian"))
+ imx2_wdt_regmap_config.val_format_endian = REGMAP_ENDIAN_BIG;
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))