On 29/07/2015 8:04 pm, Sebastian Huber wrote:
>
> A custom workspace initialization can be done via
> bsp_work_area_initialize().
>
On the zynq the ethernet driver from Ric (SLAC) for the in tree
(existing) IP stack there is:
uint8_t* start;
size_t size = 0x100000;
uintptr_t boundary = (uintptr_t) 0;
uintptr_t alignment = (uintptr_t) 0x100000;
start = (uint8_t*) rtems_heap_allocate_aligned_with_boundary(size,
alignment,
boundary);
arm_cp15_set_translation_table_entries(start,
@start[size],
ARMV7_MMU_DEVICE);
This creates an MMU entry at runtime for a 1M aligned block of memory
that has the cache disabled.
Chris
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