[PATCH v1] bsps/aarch64: translation table walk disable for translations using ttbr1

[Kinsey Moore]

This change looks good. TTBR1 isn't used at all under the current RTEMS
configuration and isn't expected to be used in the future.

Kinsey

On Tue, Oct 17, 2023 at 3:57 AM <tianye at sugon.com> wrote:

> From: Tian Ye <tianye at sugon.com>
>
> ---
>  bsps/aarch64/include/bsp/aarch64-mmu.h | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/bsps/aarch64/include/bsp/aarch64-mmu.h
> b/bsps/aarch64/include/bsp/aarch64-mmu.h
> index 2101ef4ae0..8c69705230 100644
> --- a/bsps/aarch64/include/bsp/aarch64-mmu.h
> +++ b/bsps/aarch64/include/bsp/aarch64-mmu.h
> @@ -439,7 +439,8 @@ BSP_START_TEXT_SECTION static inline void
> aarch64_mmu_setup( void )
>    _AArch64_Write_tcr_el1(
>      AARCH64_TCR_EL1_T0SZ( 0x10 ) | AARCH64_TCR_EL1_IRGN0( 0x1 ) |
>      AARCH64_TCR_EL1_ORGN0( 0x1 ) | AARCH64_TCR_EL1_SH0( 0x3 ) |
> -    AARCH64_TCR_EL1_TG0( 0x0 ) | AARCH64_TCR_EL1_IPS( 0x5ULL )
> +    AARCH64_TCR_EL1_TG0( 0x0 ) | AARCH64_TCR_EL1_IPS( 0x5ULL ) |
> +    AARCH64_TCR_EL1_EPD1
>    );
>
>    /* Set MAIR */
> --
> 2.34.1
>
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