On 10/08/2013 02:23 AM, Joseph Lo wrote: > Because the CPU0 was the first up and the last down core when cluster > power up/down or platform suspend. So only CPU0 needs the rest of the > functions to reset flow controller and re-enable SCU and L2. We also > move the L2 init function for Cortex-A15 to there. The secondery CPU > can just call cpu_resume. Is that really true? I thought that starting with Tegra114, all the CPUs were independent, so that any CPU could be the last CPU to be power-gated. Isn't that exactly why we don't need coupled cpuidle or anything similar on Tegra114 > diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S > not_ca9: > + mov32 r9, 0xc0f > + cmp r8, r9 > + bleq tegra_init_l2_for_a15 That's checking whether the CPU type is a Cortex-A15, isn't it? The only CPUs that exist NVIDIA SoCs are Cortex-A9 and Cortex-A15, so I don't see why we need to check whether the CPU is a Cortex-A15, given this label is jumped to only when the CPU isn't a Cortex-A9. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
