Patchwork [U-Boot,v2,2/9] x86: Add basic cache operations

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Submitter Simon Glass
Date March 1, 2013, 5:26 a.m.
Message ID <1362115578-12165-2-git-send-email-sjg@chromium.org>
Download mbox | patch
Permalink /patch/224229/
State Accepted, archived
Delegated to: Simon Glass
Headers show

Comments

Simon Glass - March 1, 2013, 5:26 a.m.
At present most x86 cache operations are undefined. Add a basic
implementation for these.

Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v2: None

 arch/x86/cpu/cpu.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

Patch

diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index 6a23974..1a2f85c 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -228,3 +228,26 @@  void flush_dcache_range(unsigned long start, unsigned long stop)
 void invalidate_dcache_range(unsigned long start, unsigned long stop)
 {
 }
+
+void dcache_enable(void)
+{
+	enable_caches();
+}
+
+void dcache_disable(void)
+{
+	disable_caches();
+}
+
+void icache_enable(void)
+{
+}
+
+void icache_disable(void)
+{
+}
+
+int icache_status(void)
+{
+	return 1;
+}