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ARM: tegra: add an assembly marco to check Tegra SoC ID

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There are some Tegra SoC ID checking code around the low level assembly
code. Adding a marco to replace them. For the single image to support all
the Tegra series, we may also need the marco in other common code. So we
make it become a marco for the usage.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Joseph Lo
2013-05-20 18:39:24 +08:00
committed by Stephen Warren
parent b39f38c4d2
commit 4b3e2edacf
3 changed files with 30 additions and 26 deletions
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9
arch/arm/mach-tegra/sleep.h
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@@ -85,6 +85,15 @@
dsb
.endm
/* Macro to check Tegra revision */
#define APB_MISC_GP_HIDREV 0x804
.macro tegra_get_soc_id base, tmp1
mov32 \tmp1, \base
ldr \tmp1, [\tmp1, #APB_MISC_GP_HIDREV]
and \tmp1, \tmp1, #0xff00
mov \tmp1, \tmp1, lsr #8
.endm
/* Macro to resume & re-enable L2 cache */
#ifndef L2X0_CTRL_EN
#define L2X0_CTRL_EN 1