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authorJuha Yrjola <juha.yrjola@solidboot.com>2006-12-06 17:13:48 -0800
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-05-05 10:53:45 +0100
commit14f1c3bf51b78d916a6aff9c9b5e6689e3e006e7 (patch)
tree9e4c927643cce445eef0a949d543b20f60af56bd /arch
parent235b185ce47ce64793362bd3ae4bcd8afc6b57b8 (diff)
ARM: OMAP: Enable 24xx GPIO autoidling
Enable 24xx GPIO autoidling Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-omap/gpio.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 8bedc8f9b6e..037a4930ec6 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -1082,6 +1082,10 @@ static int __init _omap_gpio_init(void)
if (bank->method == METHOD_GPIO_24XX) {
__raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1);
__raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1);
+ __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG);
+
+ /* Initialize interface clock ungated, module enabled */
+ __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL);
gpio_count = 32;
}
@@ -1104,6 +1108,12 @@ static int __init _omap_gpio_init(void)
if (cpu_is_omap16xx())
omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04, ULPD_CAM_CLK_CTRL);
+#ifdef CONFIG_ARCH_OMAP24XX
+ /* Enable autoidle for the OCP interface */
+ if (cpu_is_omap24xx())
+ omap_writel(1 << 0, 0x48019010);
+#endif
+
return 0;
}