diff options
| author | Joseph Lo <josephl@nvidia.com> | 2013-05-20 14:39:24 +0400 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-05-23 01:19:21 +0400 |
| commit | 4b3e2edacf4344cdf7863b6fae64ccb8b02fe9f5 (patch) | |
| tree | 27d0a82998abce335dd155cbcc3ac1b6195349df /arch/arm/mach-tegra/reset-handler.S | |
| parent | b39f38c4d27f04fbc3ee8ce9a5fb04673047d5a0 (diff) | |
| download | linux-4b3e2edacf4344cdf7863b6fae64ccb8b02fe9f5.tar.xz | |
ARM: tegra: add an assembly marco to check Tegra SoC ID
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>
Diffstat (limited to 'arch/arm/mach-tegra/reset-handler.S')
| -rw-r--r-- | arch/arm/mach-tegra/reset-handler.S | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S index e6de88a2ea06..40af405b0465 100644 --- a/arch/arm/mach-tegra/reset-handler.S +++ b/arch/arm/mach-tegra/reset-handler.S @@ -22,11 +22,11 @@ #include <asm/hardware/cache-l2x0.h> #include "flowctrl.h" +#include "fuse.h" #include "iomap.h" #include "reset.h" #include "sleep.h" -#define APB_MISC_GP_HIDREV 0x804 #define PMC_SCRATCH41 0x140 #define RESET_DATA(x) ((TEGRA_RESET_##x)*4) @@ -49,10 +49,8 @@ ENTRY(tegra_resume) #ifdef CONFIG_ARCH_TEGRA_3x_SOC /* Are we on Tegra20? */ - mov32 r6, TEGRA_APB_MISC_BASE - ldr r0, [r6, #APB_MISC_GP_HIDREV] - and r0, r0, #0xff00 - cmp r0, #(0x20 << 8) + tegra_get_soc_id TEGRA_APB_MISC_BASE, r6 + cmp r6, #TEGRA20 beq 1f @ Yes /* Clear the flow controller flags for this CPU. */ mov32 r2, TEGRA_FLOW_CTRL_BASE + FLOW_CTRL_CPU0_CSR @ CPU0 CSR @@ -98,7 +96,7 @@ ENTRY(__tegra_cpu_reset_handler_start) * Register usage within the reset handler: * * Others: scratch - * R6 = SoC ID << 8 + * R6 = SoC ID * R7 = CPU present (to the OS) mask * R8 = CPU in LP1 state mask * R9 = CPU in LP2 state mask @@ -115,12 +113,10 @@ ENTRY(__tegra_cpu_reset_handler) cpsid aif, 0x13 @ SVC mode, interrupts disabled - mov32 r6, TEGRA_APB_MISC_BASE - ldr r6, [r6, #APB_MISC_GP_HIDREV] - and r6, r6, #0xff00 + tegra_get_soc_id TEGRA_APB_MISC_BASE, r6 #ifdef CONFIG_ARCH_TEGRA_2x_SOC t20_check: - cmp r6, #(0x20 << 8) + cmp r6, #TEGRA20 bne after_t20_check t20_errata: # Tegra20 is a Cortex-A9 r1p1 @@ -136,7 +132,7 @@ after_t20_check: #endif #ifdef CONFIG_ARCH_TEGRA_3x_SOC t30_check: - cmp r6, #(0x30 << 8) + cmp r6, #TEGRA30 bne after_t30_check t30_errata: # Tegra30 is a Cortex-A9 r2p9 @@ -163,7 +159,7 @@ after_errata: #ifdef CONFIG_ARCH_TEGRA_2x_SOC /* Are we on Tegra20? */ - cmp r6, #(0x20 << 8) + cmp r6, #TEGRA20 bne 1f /* If not CPU0, don't let CPU0 reset CPU1 now that CPU1 is coming up. */ mov32 r5, TEGRA_PMC_BASE @@ -210,10 +206,7 @@ __die: mov32 r7, TEGRA_CLK_RESET_BASE /* Are we on Tegra20? */ - mov32 r6, TEGRA_APB_MISC_BASE - ldr r0, [r6, #APB_MISC_GP_HIDREV] - and r0, r0, #0xff00 - cmp r0, #(0x20 << 8) + cmp r6, #TEGRA20 bne 1f #ifdef CONFIG_ARCH_TEGRA_2x_SOC |