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authorJordan Crouse <jordan.crouse@amd.com>2008-06-18 11:34:38 -0600
committerIngo Molnar <mingo@elte.hu>2008-06-19 14:19:03 +0200
commitffe6e1da86d21d7855495b5a772c93f050258f6e (patch)
treec327ccc9378b70df18d0b89355e43c613a073334
parentd3942cff620bea073fc4e3c8ed878eb1e84615ce (diff)
downloadconfigs-ffe6e1da86d21d7855495b5a772c93f050258f6e.tar.gz
x86, geode: add a VSA2 ID for General Software
General Software writes their own VSA2 module for their version of the Geode BIOS, which returns a different ID then the standard VSA2. This was causing the framebuffer driver to break for most GSW boards. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Cc: tglx@linutronix.de Cc: linux-geode@lists.infradead.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/kernel/geode_32.c5
-rw-r--r--include/asm-x86/geode.h4
2 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86/kernel/geode_32.c b/arch/x86/kernel/geode_32.c
index e8edd63ab00..9b08e852fd1 100644
--- a/arch/x86/kernel/geode_32.c
+++ b/arch/x86/kernel/geode_32.c
@@ -166,6 +166,8 @@ int geode_has_vsa2(void)
static int has_vsa2 = -1;
if (has_vsa2 == -1) {
+ u16 val;
+
/*
* The VSA has virtual registers that we can query for a
* signature.
@@ -173,7 +175,8 @@ int geode_has_vsa2(void)
outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
- has_vsa2 = (inw(VSA_VRC_DATA) == VSA_SIG);
+ val = inw(VSA_VRC_DATA);
+ has_vsa2 = (val == AMD_VSA_SIG || val == GSW_VSA_SIG);
}
return has_vsa2;
diff --git a/include/asm-x86/geode.h b/include/asm-x86/geode.h
index 6e6458853a3..bb06027fc83 100644
--- a/include/asm-x86/geode.h
+++ b/include/asm-x86/geode.h
@@ -112,8 +112,8 @@ extern int geode_get_dev_base(unsigned int dev);
#define VSA_VR_UNLOCK 0xFC53 /* unlock virtual register */
#define VSA_VR_SIGNATURE 0x0003
#define VSA_VR_MEM_SIZE 0x0200
-#define VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
-
+#define AMD_VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
+#define GSW_VSA_SIG 0x534d /* General Software signature */
/* GPIO */
#define GPIO_OUTPUT_VAL 0x00