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make PCI memory non-cacheable

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This commit is contained in:
David Gálvez
2014-05-25 19:13:45 +00:00
parent 8509de2578
commit cc8a346ce4
1 changed files with 16 additions and 0 deletions
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16
BaS_gcc/sys/mmu.c
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@@ -307,6 +307,22 @@ static struct mmu_mapping memory_map[] =
(uint32_t) 0x100000, (uint32_t) 0x100000,
MMU_PAGE_SIZE_1M, MMU_PAGE_SIZE_1M,
{ CACHE_NOCACHE_PRECISE, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE }, { CACHE_NOCACHE_PRECISE, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE },
},
{
/* PCI memory */
(uint32_t) PCI_MEMORY_OFFSET,
(uint32_t) PCI_MEMORY_OFFSET,
(uint32_t) PCI_MEMORY_SIZE,
MMU_PAGE_SIZE_1M,
{ CACHE_NOCACHE_PRECISE, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE },
},
{
/* PCI I/O */
(uint32_t) PCI_IO_OFFSET,
(uint32_t) PCI_IO_OFFSET,
(uint32_t) PCI_IO_SIZE,
MMU_PAGE_SIZE_1M,
{ CACHE_NOCACHE_PRECISE, SV_PROTECT, 0, ACCESS_READ | ACCESS_WRITE },
} }
}; };