diff options
| author | Joseph Lo <josephl@nvidia.com> | 2013-05-20 14:39:26 +0400 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-05-23 01:19:22 +0400 |
| commit | ecc4d9da2136715e9df9f5f885910f89d66d2949 (patch) | |
| tree | e4f64fae0ba184d19813ff9eb408c83d738325b0 /arch/arm/mach-tegra/reset-handler.S | |
| parent | f6d06f33664756cfa8bce3494e586be32b213bdd (diff) | |
| download | linux-ecc4d9da2136715e9df9f5f885910f89d66d2949.tar.xz | |
ARM: tegra: make tegra_resume can work for Tegra114
Tegra114 had a newer flow controller hardware that makes its behavior and
configurations are different with other Tegra series. We fix the common
resume function of tegra_resume to make it can work on Tegra114 by checking
SoC ID. And also checking CPU primary part number to isolate the support
code for Cortex A9 and A15.
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 | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S index 40af405b0465..424e01f5bca7 100644 --- a/arch/arm/mach-tegra/reset-handler.S +++ b/arch/arm/mach-tegra/reset-handler.S @@ -47,23 +47,27 @@ ENTRY(tegra_resume) THUMB( it ne ) bne cpu_resume @ no -#ifdef CONFIG_ARCH_TEGRA_3x_SOC +#ifndef CONFIG_ARCH_TEGRA_2x_SOC /* Are we on Tegra20? */ 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 - ldr r1, [r2] + cpu_to_csr_req r1, r0 + mov32 r2, TEGRA_FLOW_CTRL_BASE + ldr r1, [r2, r1] /* Clear event & intr flag */ orr r1, r1, \ #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG - movw r0, #0x0FFD @ enable, cluster_switch, immed, & bitmaps + movw r0, #0x3FFD @ enable, cluster_switch, immed, bitmaps + @ & ext flags for CPU power mgnt bic r1, r1, r0 str r1, [r2] 1: #endif + check_cpu_part_num 0xc09, r8, r9 + bne not_ca9 #ifdef CONFIG_HAVE_ARM_SCU /* enable SCU */ mov32 r0, TEGRA_ARM_PERIF_BASE @@ -74,6 +78,7 @@ ENTRY(tegra_resume) /* L2 cache resume & re-enable */ l2_cache_resume r0, r1, r2, l2x0_saved_regs_addr +not_ca9: b cpu_resume ENDPROC(tegra_resume) |