[PATCH V5 5/5] ARM: exynos: Enable l2 configuration through device tree

[Olof Johansson]

On Wed, Jan 4, 2012 at 8:25 PM, Amit Daniel Kachhap
<amit.kachhap at linaro.org> wrote:
> This patch enables calling generic l2 setup functions if device tree is used.
>
> Signed-off-by: Amit Daniel Kachhap <amit.kachhap at linaro.org>
> ---
>  arch/arm/mach-exynos/common.c |   14 ++++++++++++--
>  1 files changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
> index f8bb808..e91b92d 100644
> --- a/arch/arm/mach-exynos/common.c
> +++ b/arch/arm/mach-exynos/common.c
> @@ -47,6 +47,8 @@
>  #include <plat/regs-serial.h>
>
>  #include "common.h"
> +#define L2_AUX_VAL 0x7C470001
> +#define L2_AUX_MASK 0xC200ffff
>
>  static const char name_exynos4210[] = "EXYNOS4210";
>  static const char name_exynos4212[] = "EXYNOS4212";
> @@ -453,6 +455,15 @@ core_initcall(exynos4_core_init);
>  #ifdef CONFIG_CACHE_L2X0
>  static int __init exynos4_l2x0_cache_init(void)
>  {
> +#ifdef CONFIG_OF
> +       int ret;
> +       ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK);
> +       if (!ret) {
> +               l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
> +               clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long));
> +               return 0;
> +       }
> +#endif

No need for ifdef here, if CONFIG_OF is off, then there's a static
inline version of l2x_of_init() that will return -ENODEV.


-Olof