Re: [PATCH v2 1/4] ARM: EXYNOS: Add support for EXYNOS5410 SoC

From: Rob Herring
Date: Fri Nov 01 2013 - 17:52:58 EST

On 10/14/2013 10:08 AM, Vyacheslav Tyrtov wrote:
> From: Tarek Dakhran <t.dakhran@xxxxxxxxxxx>
>
> EXYNOS5410 is SoC in Samsung's Exynos5 SoC series.
> Add initial support for this SoC.

I think this entire patch is mostly unnecessary and this information
should all be coming from DT. I'll leave it to arm-soc maintainers
whether they want to accept this addition rather than see some clean-up
here.

"samsung,exynos5410" does need to be documented though.

Rob

> Signed-off-by: Tarek Dakhran <t.dakhran@xxxxxxxxxxx>
> Signed-off-by: Vyacheslav Tyrtov <v.tyrtov@xxxxxxxxxxx>
> ---
> arch/arm/mach-exynos/Kconfig | 12 ++++++++++++
> arch/arm/mach-exynos/common.c | 18 ++++++++++++++++++
> arch/arm/mach-exynos/include/mach/map.h | 1 +
> arch/arm/mach-exynos/mach-exynos5-dt.c | 1 +
> arch/arm/plat-samsung/include/plat/cpu.h | 8 ++++++++
> 5 files changed, 40 insertions(+)
>
> diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
> index 56fe819..9ea1799 100644
> --- a/arch/arm/mach-exynos/Kconfig
> +++ b/arch/arm/mach-exynos/Kconfig
> @@ -84,6 +84,18 @@ config SOC_EXYNOS5250
> help
> Enable EXYNOS5250 SoC support
>
> +config SOC_EXYNOS5410
> + bool "SAMSUNG EXYNOS5410"
> + default y
> + depends on ARCH_EXYNOS5
> + select MCPM
> + select ARM_CCI
> + select PM_GENERIC_DOMAINS if PM
> + select S5P_PM if PM
> + select S5P_SLEEP if PM
> + help
> + Enable EXYNOS5410 SoC support
> +
> config SOC_EXYNOS5420
> bool "SAMSUNG EXYNOS5420"
> default y
> diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
> index ba95e5d..187c0a4 100644
> --- a/arch/arm/mach-exynos/common.c
> +++ b/arch/arm/mach-exynos/common.c
> @@ -53,6 +53,7 @@ static const char name_exynos4210[] = "EXYNOS4210";
> static const char name_exynos4212[] = "EXYNOS4212";
> static const char name_exynos4412[] = "EXYNOS4412";
> static const char name_exynos5250[] = "EXYNOS5250";
> +static const char name_exynos5410[] = "EXYNOS5410";
> static const char name_exynos5420[] = "EXYNOS5420";
> static const char name_exynos5440[] = "EXYNOS5440";
>
> @@ -86,6 +87,12 @@ static struct cpu_table cpu_ids[] __initdata = {
> .init = exynos_init,
> .name = name_exynos5250,
> }, {
> + .idcode = EXYNOS5410_SOC_ID,
> + .idmask = EXYNOS5_SOC_MASK,
> + .map_io = exynos5_map_io,
> + .init = exynos_init,
> + .name = name_exynos5410,
> + }, {
> .idcode = EXYNOS5420_SOC_ID,
> .idmask = EXYNOS5_SOC_MASK,
> .map_io = exynos5_map_io,
> @@ -216,6 +223,15 @@ static struct map_desc exynos4x12_iodesc[] __initdata = {
> },
> };
>
> +static struct map_desc exynos5410_iodesc[] __initdata = {
> + {
> + .virtual = (unsigned long)S5P_VA_SYSRAM_NS,
> + .pfn = __phys_to_pfn(EXYNOS5410_PA_SYSRAM_NS),
> + .length = SZ_4K,
> + .type = MT_DEVICE,
> + },
> +};
> +
> static struct map_desc exynos5250_iodesc[] __initdata = {
> {
> .virtual = (unsigned long)S5P_VA_SYSRAM_NS,
> @@ -365,6 +381,8 @@ static void __init exynos5_map_io(void)
>
> if (soc_is_exynos5250())
> iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
> + if (soc_is_exynos5410())
> + iotable_init(exynos5410_iodesc, ARRAY_SIZE(exynos5410_iodesc));
> }
>
> void __init exynos_init_time(void)
> diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
> index 7b046b5..894f431 100644
> --- a/arch/arm/mach-exynos/include/mach/map.h
> +++ b/arch/arm/mach-exynos/include/mach/map.h
> @@ -29,6 +29,7 @@
> #define EXYNOS4210_PA_SYSRAM_NS 0x0203F000
> #define EXYNOS4x12_PA_SYSRAM_NS 0x0204F000
> #define EXYNOS5250_PA_SYSRAM_NS 0x0204F000
> +#define EXYNOS5410_PA_SYSRAM_NS 0x02073000
>
> #define EXYNOS_PA_CHIPID 0x10000000
>
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index f874b77..9515186 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -52,6 +52,7 @@ static void __init exynos5_dt_machine_init(void)
>
> static char const *exynos5_dt_compat[] __initdata = {
> "samsung,exynos5250",
> + "samsung,exynos5410",
> "samsung,exynos5420",
> "samsung,exynos5440",
> NULL
> diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
> index 4fb1f03..aad7c40 100644
> --- a/arch/arm/plat-samsung/include/plat/cpu.h
> +++ b/arch/arm/plat-samsung/include/plat/cpu.h
> @@ -46,6 +46,7 @@ extern unsigned long samsung_cpu_id;
> #define EXYNOS4_CPU_MASK 0xFFFE0000
>
> #define EXYNOS5250_SOC_ID 0x43520000
> +#define EXYNOS5410_SOC_ID 0xE5410023
> #define EXYNOS5420_SOC_ID 0xE5420000
> #define EXYNOS5440_SOC_ID 0xE5440000
> #define EXYNOS5_SOC_MASK 0xFFFFF000
> @@ -68,6 +69,7 @@ IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK)
> IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK)
> IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK)
> IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK)
> +IS_SAMSUNG_CPU(exynos5410, EXYNOS5410_SOC_ID, EXYNOS5_SOC_MASK)
> IS_SAMSUNG_CPU(exynos5420, EXYNOS5420_SOC_ID, EXYNOS5_SOC_MASK)
> IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
>
> @@ -144,6 +146,12 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
> # define soc_is_exynos5250() 0
> #endif
>
> +#if defined(CONFIG_SOC_EXYNOS5410)
> +# define soc_is_exynos5410() is_samsung_exynos5410()
> +#else
> +# define soc_is_exynos5410() 0
> +#endif
> +
> #if defined(CONFIG_SOC_EXYNOS5420)
> # define soc_is_exynos5420() is_samsung_exynos5420()
> #else
>

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