On Thu, Mar 30, 2017 at 3:16 PM, Pankaj Dubey <pankaj.dubey@xxxxxxxxxxx> wrote:
> To remove dependency on soc_is_exynosMMMM macros and remove multiple
> checks for such macros, let's refactor code in firmware.c file.
> SoC specific firmware_ops are separated and registered during
> exynos_firmware_init based on matching machine compatible.
>
> Signed-off-by: Pankaj Dubey <pankaj.dubey@xxxxxxxxxxx>
> ---
> arch/arm/mach-exynos/firmware.c | 114 +++++++++++++++++++++++++++++++---------
> 1 file changed, 89 insertions(+), 25 deletions(-)
>
> diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
> index e81a78b..b04c47a 100644
> --- a/arch/arm/mach-exynos/firmware.c
> +++ b/arch/arm/mach-exynos/firmware.c
> @@ -35,6 +35,25 @@ static void exynos_save_cp15(void)
> : : "cc");
> }
>
> +static int exynos3250_do_idle(unsigned long mode)
> +{
> + switch (mode) {
> + case FW_DO_IDLE_AFTR:
> + writel_relaxed(virt_to_phys(exynos_cpu_resume_ns),
> + sysram_ns_base_addr + 0x24);
> + writel_relaxed(EXYNOS_AFTR_MAGIC, sysram_ns_base_addr + 0x20);
> + flush_cache_all();
> + exynos_smc(SMC_CMD_SAVE, OP_TYPE_CORE,
> + SMC_POWERSTATE_IDLE, 0);
> + exynos_smc(SMC_CMD_SHUTDOWN, OP_TYPE_CLUSTER,
> + SMC_POWERSTATE_IDLE, 0);
> + break;
> + case FW_DO_IDLE_SLEEP:
> + exynos_smc(SMC_CMD_SLEEP, 0, 0, 0);
> + }
> + return 0;
> +}
> +
> static int exynos_do_idle(unsigned long mode)
> {
> switch (mode) {
> @@ -44,14 +63,7 @@ static int exynos_do_idle(unsigned long mode)
> writel_relaxed(__pa_symbol(exynos_cpu_resume_ns),
> sysram_ns_base_addr + 0x24);
> writel_relaxed(EXYNOS_AFTR_MAGIC, sysram_ns_base_addr + 0x20);
> - if (soc_is_exynos3250()) {
> - flush_cache_all();
> - exynos_smc(SMC_CMD_SAVE, OP_TYPE_CORE,
> - SMC_POWERSTATE_IDLE, 0);
> - exynos_smc(SMC_CMD_SHUTDOWN, OP_TYPE_CLUSTER,
> - SMC_POWERSTATE_IDLE, 0);
> - } else
> - exynos_smc(SMC_CMD_CPU0AFTR, 0, 0, 0);
> + exynos_smc(SMC_CMD_CPU0AFTR, 0, 0, 0);
> break;
> case FW_DO_IDLE_SLEEP:
> exynos_smc(SMC_CMD_SLEEP, 0, 0, 0);
> @@ -59,28 +71,25 @@ static int exynos_do_idle(unsigned long mode)
> return 0;
> }
>
> -static int exynos_cpu_boot(int cpu)
> +static int exynos4212_cpu_boot(int cpu)
> {
> /*
> - * Exynos3250 doesn't need to send smc command for secondary CPU boot
> - * because Exynos3250 removes WFE in secure mode.
> - */
> - if (soc_is_exynos3250())
> - return 0;
> -
> - /*
> * The second parameter of SMC_CMD_CPU1BOOT command means CPU id.
> * But, Exynos4212 has only one secondary CPU so second parameter
> * isn't used for informing secure firmware about CPU id.
> */
> - if (soc_is_exynos4212())
> - cpu = 0;
> + cpu = 0;
The comment above is clear enough so I think there is no need for this
assignment. Just use 0 as argument in exynos_smc().
Rest looks good so with this change:
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Best regards,
Krzysztof
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