From 77d134150a095ea246253462614aace4324936e5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?David=20G=C3=A1lvez?= Date: Thu, 10 Jul 2014 16:46:21 +0000 Subject: [PATCH] Make PCI memory space uncachable --- sys/mmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sys/mmu.c b/sys/mmu.c index c742151..54745a1 100644 --- a/sys/mmu.c +++ b/sys/mmu.c @@ -206,8 +206,8 @@ void mmu_init(void) ACR_S(ACR_S_ALL) | /* match addresses in user and supervisor mode */ ACR_E(1) | /* enable ACR */ #if defined(MACHINE_FIREBEE) - ACR_ADMSK(0x3f) | /* cover 1GB area from 0xc0000000 to 0xffffffff */ - ACR_BA(0xc0000000)); /* (equals area from 3 to 4 GB */ + ACR_ADMSK(0x7f) | /* cover 2GB area from 0x80000000 to 0xffffffff */ + ACR_BA(0x80000000)); /* (equals area from 3 to 4 GB */ #elif defined(MACHINE_M5484LITE) ACR_ADMSK(0x7f) | /* cover 2 GB area from 0x80000000 to 0xffffffff */ ACR_BA(0x80000000));