Re: [PATCH] arm: exynos: Map iRAM APM area for Exynos850 SoC

[Minkyu Kang]

Hi,

On Sun, 26 May 2024 at 06:53, Sam Protsenko <semen.protse...@linaro.org>
wrote:

> This iRAM APM area is needed for I3C access to PMIC via APM block.
> Without this mapping any access to APM iRAM leads to "Synchronous Abort"
> exception.
>
> Signed-off-by: Sam Protsenko <semen.protse...@linaro.org>
> ---
>  arch/arm/mach-exynos/mmu-arm64.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/mach-exynos/mmu-arm64.c
> b/arch/arm/mach-exynos/mmu-arm64.c
> index 30e522804fbf..4c154950f73b 100644
> --- a/arch/arm/mach-exynos/mmu-arm64.c
> +++ b/arch/arm/mach-exynos/mmu-arm64.c
> @@ -101,6 +101,14 @@ struct mm_region *mem_map = exynos7880_mem_map;
>
>  static struct mm_region exynos850_mem_map[] = {
>         {
> +               /* iRAM */
> +               .virt = 0x02000000UL,
> +               .phys = 0x02000000UL,
> +               .size = SZ_2M,
> +               .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
> +                        PTE_BLOCK_NON_SHARE |
> +                        PTE_BLOCK_PXN | PTE_BLOCK_UXN
> +       }, {
>                 /* Peripheral block */
>                 .virt = 0x10000000UL,
>                 .phys = 0x10000000UL,
> --
> 2.39.2
>
>
applied to u-boot-samsung.

-- 
Thanks,
Minkyu Kang.