On Tuesday 18 February 2014 16:27:54 Rahul Sharma wrote:
> diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
> index 7654f19..1cc52c9 100644
> --- a/arch/arm/mach-exynos/common.c
> +++ b/arch/arm/mach-exynos/common.c
> @@ -176,6 +176,15 @@ static struct map_desc exynos5250_iodesc[] __initdata = {
> },
> };
>
> +static struct map_desc exynos5260_iodesc[] __initdata = {
> + {
> + .virtual = (unsigned long)S5P_VA_SYSRAM_NS,
> + .pfn = __phys_to_pfn(EXYNOS5260_PA_SYSRAM_NS),
> + .length = SZ_4K,
> + .type = MT_DEVICE,
> + },
> +};
> +
> static struct map_desc exynos5_iodesc[] __initdata = {
> {
> .virtual = (unsigned long)S3C_VA_SYS,
> @@ -331,6 +340,8 @@ static void __init exynos_map_io(void)
> iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc));
> if (soc_is_exynos5250())
> iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
> + if (soc_is_exynos5260())
> + iotable_init(exynos5260_iodesc, ARRAY_SIZE(exynos5260_iodesc));
> }
As I commented before, I think we really shouldn't do this any more: There
is no excuse why you still need to add SoC specific code here. Please put
the SYSRAM into DT and make a proper abstraction for it so you don't have
to modify the kernel every time a new SoC variant comes out.
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 37ea261..790009e 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -51,6 +51,7 @@ static void __init exynos5_dt_machine_init(void)
>
> static char const *exynos5_dt_compat[] __initdata = {
> "samsung,exynos5250",
> + "samsung,exynos5260",
> "samsung,exynos5420",
> "samsung,exynos5440",
> NULL
This one is ok, but I'd suggest also adding a generic "samsung,exynos5" string here,
for the same reason.
> diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
> index 31164b3..0110df3 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 EXYNOS5260_SOC_ID 0xE5260000
> #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(exynos5260, EXYNOS5260_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)
>
> @@ -148,6 +150,12 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
> # define soc_is_exynos5250() 0
> #endif
>
> +#if defined(CONFIG_SOC_EXYNOS5260)
> +# define soc_is_exynos5260() is_samsung_exynos5260()
> +#else
> +# define soc_is_exynos5260() 0
> +#endif
> +
> #if defined(CONFIG_SOC_EXYNOS5420)
> # define soc_is_exynos5420() is_samsung_exynos5420()
> #else
This doesn't seem to be used anywhere.
Arnd
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