change PCI area cache mode to CACHE_NOCACHE_PRECISE

2016-11-20 19:25:18 +00:00
parent 710db76ff6
commit 486bc3f063
2 changed files with 6 additions and 4 deletions
--- a/BaS_gcc/sys/mmu.c
+++ b/BaS_gcc/sys/mmu.c
@@ -297,7 +297,7 @@ int mmu_map_instruction_page(uint32_t virt, uint8_t asid)

 struct mmu_page_descriptor_ram pci_descriptor =
 {
-    .cache_mode = CACHE_COPYBACK,
+    .cache_mode = CACHE_NOCACHE_PRECISE,
    .supervisor_protect = 0,
    .read = 1,
    .write = 1,
@@ -327,7 +327,9 @@ int mmu_map_data_page(uint32_t virt, uint8_t asid)
    {
        phys = virt;
        page = &pci_descriptor;
-    };
+    }
+    else
+        return 0;