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| author | Lucas Stach <dev@lynxeye.de> | 2014-05-14 22:45:29 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-05-15 14:17:11 +0200 |
| commit | 7a9d497860994aa87ebaed32ca1d7c3be929bfbb (patch) | |
| tree | e150394e065013761966c7f5f70577ba04135672 /arch/arm/mach-tegra | |
| parent | 45b95b50cd0b6fc587c459be4c2defce41ba4ac5 (diff) | |
| download | barebox-7a9d497860994aa87ebaed32ca1d7c3be929bfbb.tar.gz barebox-7a9d497860994aa87ebaed32ca1d7c3be929bfbb.tar.xz | |
tegra: lowlevel: add function to fetch chipid
This is needed as a safe way to flush the ABP bus.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-tegra')
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/lowlevel.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/include/mach/lowlevel.h b/arch/arm/mach-tegra/include/mach/lowlevel.h index 52b405d5f8..10265183c1 100644 --- a/arch/arm/mach-tegra/include/mach/lowlevel.h +++ b/arch/arm/mach-tegra/include/mach/lowlevel.h @@ -70,6 +70,12 @@ enum tegra_chiptype { }; static __always_inline +u32 tegra_read_chipid(void) +{ + return readl(TEGRA_APB_MISC_BASE + APB_MISC_HIDREV); +} + +static __always_inline enum tegra_chiptype tegra_get_chiptype(void) { u32 hidrev; |