diff options
| author | Daniel Drake <dsd@laptop.org> | 2011-06-25 17:34:14 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-07-06 14:44:38 -0700 |
| commit | 7bc74b3df73776fe06f3df9fafd2d2698e6ca28a (patch) | |
| tree | 166bd6e0b0de947dd278acac03480eb359bff93e /include/linux/cs5535.h | |
| parent | bc4ecd5a5efc2435e6debfb7b279a15ae96697fd (diff) | |
| download | lwn-7bc74b3df73776fe06f3df9fafd2d2698e6ca28a.tar.gz lwn-7bc74b3df73776fe06f3df9fafd2d2698e6ca28a.zip | |
x86, olpc-xo1-sci: Add GPE handler and ebook switch functionality
The EC in the OLPC XO-1 delivers GPE events to provide various
notifications. Add the basic code for GPE/EC event processing and
enable the ebook switch, which can be used as a wakeup source.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Link: http://lkml.kernel.org/r/1309019658-1712-8-git-send-email-dsd@laptop.org
Acked-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'include/linux/cs5535.h')
| -rw-r--r-- | include/linux/cs5535.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index 6f78235cb905..d7e9a7f6ddb0 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -11,6 +11,8 @@ #ifndef _CS5535_H #define _CS5535_H +#include <asm/msr.h> + /* MSRs */ #define MSR_GLIU_P2D_RO0 0x10000029 @@ -43,6 +45,18 @@ #define MSR_GX_GLD_MSR_CONFIG 0xC0002001 #define MSR_GX_MSR_PADSEL 0xC0002011 +static inline int cs5535_pic_unreqz_select_high(unsigned int group, + unsigned int irq) +{ + uint32_t lo, hi; + + rdmsr(MSR_PIC_ZSEL_HIGH, lo, hi); + lo &= ~(0xF << (group * 4)); + lo |= (irq & 0xF) << (group * 4); + wrmsr(MSR_PIC_ZSEL_HIGH, lo, hi); + return 0; +} + /* PIC registers */ #define CS5536_PIC_INT_SEL1 0x4d0 #define CS5536_PIC_INT_SEL2 0x4d1 @@ -73,6 +87,7 @@ #define CS5536_PM1_EN 0x02 #define CS5536_PM1_CNT 0x08 #define CS5536_PM_GPE0_STS 0x18 +#define CS5536_PM_GPE0_EN 0x1c /* CS5536_PM1_STS bits */ #define CS5536_WAK_FLAG (1 << 15) @@ -81,6 +96,13 @@ /* CS5536_PM1_EN bits */ #define CS5536_PM_PWRBTN (1 << 8) +/* CS5536_PM_GPE0_STS bits */ +#define CS5536_GPIOM7_PME_FLAG (1 << 31) +#define CS5536_GPIOM6_PME_FLAG (1 << 30) + +/* CS5536_PM_GPE0_EN bits */ +#define CS5536_GPIOM7_PME_EN (1 << 31) + /* VSA2 magic values */ #define VSA_VRC_INDEX 0xAC1C #define VSA_VRC_DATA 0xAC1E |