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authoryc_chen <yc_chen>2006-04-17 03:27:40 +0000
committeryc_chen <yc_chen>2006-04-17 03:27:40 +0000
commitb3367f4162a7ea295fec2dd424a83861c340cdb8 (patch)
tree0847cf1820be324c9c147a61e89331e74b783a00 /src
parent3bc1deb6a84d5ad1ff47b2efe89ed15d68e5822a (diff)
Fixed can't get correct MCLK in some platformsxf86-video-impact-0_2_0
Diffstat (limited to 'src')
-rw-r--r--src/ast_vgatool.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/ast_vgatool.c b/src/ast_vgatool.c
index a464a01..14e0a75 100644
--- a/src/ast_vgatool.c
+++ b/src/ast_vgatool.c
@@ -24,6 +24,7 @@
#include <config.h>
#endif
#include "xf86.h"
+#include "xf86_ansic.h"
#include "xf86_OSproc.h"
#include "xf86Resources.h"
#include "xf86RAC.h"
@@ -128,7 +129,13 @@ GetMaxDCLK(ScrnInfoPtr pScrn)
*(ULONG *) (pAST->MMIOVirtualAddr + 0xF004) = 0x1e6e0000;
*(ULONG *) (pAST->MMIOVirtualAddr + 0xF000) = 0x00000001;
-
+
+ *(ULONG *) (pAST->MMIOVirtualAddr + 0x10100) = 0x000000A8;
+
+ do {
+ ;
+ } while (*(volatile ULONG *) (pAST->MMIOVirtualAddr + 0x10100) != 0x000000A8);
+
/* Get BusWidth */
ulData = *(ULONG * ) (pAST->MMIOVirtualAddr + 0x10004);
if (ulData & 0x40)
@@ -137,9 +144,7 @@ GetMaxDCLK(ScrnInfoPtr pScrn)
ulDRAMBusWidth = 32;
/* Get MCLK */
- {
- *(ULONG *) (pAST->MMIOVirtualAddr + 0x10100) = 0x000000A8;
-
+ {
ulData = *(ULONG *) (pAST->MMIOVirtualAddr + 0x10120);
ulData2 = *(ULONG *) (pAST->MMIOVirtualAddr + 0x10170);
if (ulData2 & 0x2000)