From: Kees Jongenburger <keesj@minix3.org>
Date: Wed, 2 Jan 2013 16:50:11 +0000 (+0100)
Subject: vm:enable the instruction and data caches.
X-Git-Tag: v3.2.1~140
X-Git-Url: http://zhaoyanbai.com/repos/rndc.conf.html?a=commitdiff_plain;h=refs%2Fchanges%2F57%2F157%2F2;p=minix.git

vm:enable the instruction and data caches.

Enable the instruction and data caches. Whether data is cached
will depend on the MMU entries.

Change-Id: I51e9ebc38924db5525d4e7ad9ab69b2a5b1ca7b4
---

diff --git a/kernel/arch/arm/pg_utils.c b/kernel/arch/arm/pg_utils.c
index 15877d4c8..1d3bec48e 100644
--- a/kernel/arch/arm/pg_utils.c
+++ b/kernel/arch/arm/pg_utils.c
@@ -211,9 +211,14 @@ void vm_enable_paging(void)
 	/* Set all Domains to Client */
 	write_dacr(0x55555555);
 
-	/* Enable MMU and access flag */
 	sctlr = read_sctlr();
+
+	/* Enable MMU */
 	sctlr |= (SCTLR_M);
+
+	/* Enable instruction and data cache */
+	sctlr |= SCTLR_C;
+	sctlr |= SCTLR_I;
 	write_sctlr(sctlr);
 }