[rtems commit] Shared MMU initialization for ARM BSPs and RaspberryPi MMU support

[Sebastian Huber]

On 2013-10-03 14:49, Gedare Bloom wrote:
> @@ -87,9 +90,9 @@ arm_cp15_start_setup_translation_table_and_enable_mmu_and_cache(
>     arm_cp15_set_domain_access_control(dac);
>     arm_cp15_set_translation_table_base(ttb);
>
> -  /* Initialize translation table with invalid entries */
> +  /* Initialize translation table with fixed-map read-write entries */
>     for (i = 0; i < ARM_MMU_TRANSLATION_TABLE_ENTRY_COUNT; ++i) {
> -    ttb [i] = 0;
> +    ttb [i] = (i << ARM_MMU_SECT_BASE_SHIFT) | ARMV7_MMU_DATA_READ_WRITE;
>     }

What is the reason for this change?  I don't think that unconditional 
read-write access is a good idea.

-- 
Sebastian Huber, embedded brains GmbH

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