From f0d2261bebd925cf31aa08f77a6ff8123bf63832 Mon Sep 17 00:00:00 2001 From: Xiangfu Liu Date: Sat, 3 Mar 2012 15:50:53 -0500 Subject: PR2029: Milkymist VGA: adjust video timings Slightly adjust video timing registers since we had problems with a few screens and the previous values. Signed-off-by: Gedare Bloom --- .../lm32/shared/milkymist_framebuffer/framebuffer.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/c/src/lib/libbsp/lm32/shared/milkymist_framebuffer/framebuffer.c b/c/src/lib/libbsp/lm32/shared/milkymist_framebuffer/framebuffer.c index b1d0612e51..9ea183149c 100644 --- a/c/src/lib/libbsp/lm32/shared/milkymist_framebuffer/framebuffer.c +++ b/c/src/lib/libbsp/lm32/shared/milkymist_framebuffer/framebuffer.c @@ -98,9 +98,9 @@ static void set_video_mode(int mode) MM_WRITE(MM_VGA_HSYNC_START, 656); MM_WRITE(MM_VGA_HSYNC_END, 752); MM_WRITE(MM_VGA_HSCAN, 799); - MM_WRITE(MM_VGA_VSYNC_START, 491); - MM_WRITE(MM_VGA_VSYNC_END, 493); - MM_WRITE(MM_VGA_VSCAN, 523); + MM_WRITE(MM_VGA_VSYNC_START, 492); + MM_WRITE(MM_VGA_VSYNC_END, 494); + MM_WRITE(MM_VGA_VSCAN, 524); MM_WRITE(MM_VGA_CLKSEL, 0); break; case 1: // 800x600, pixel clock: 50MHz @@ -109,9 +109,9 @@ static void set_video_mode(int mode) MM_WRITE(MM_VGA_HSYNC_START, 848); MM_WRITE(MM_VGA_HSYNC_END, 976); MM_WRITE(MM_VGA_HSCAN, 1040); - MM_WRITE(MM_VGA_VSYNC_START, 637); - MM_WRITE(MM_VGA_VSYNC_END, 643); - MM_WRITE(MM_VGA_VSCAN, 666); + MM_WRITE(MM_VGA_VSYNC_START, 636); + MM_WRITE(MM_VGA_VSYNC_END, 642); + MM_WRITE(MM_VGA_VSCAN, 665); MM_WRITE(MM_VGA_CLKSEL, 1); break; case 2: // 1024x768, pixel clock: 65MHz @@ -120,9 +120,9 @@ static void set_video_mode(int mode) MM_WRITE(MM_VGA_HSYNC_START, 1048); MM_WRITE(MM_VGA_HSYNC_END, 1184); MM_WRITE(MM_VGA_HSCAN, 1344); - MM_WRITE(MM_VGA_VSYNC_START, 771); - MM_WRITE(MM_VGA_VSYNC_END, 777); - MM_WRITE(MM_VGA_VSCAN, 806); + MM_WRITE(MM_VGA_VSYNC_START, 772); + MM_WRITE(MM_VGA_VSYNC_END, 778); + MM_WRITE(MM_VGA_VSCAN, 807); MM_WRITE(MM_VGA_CLKSEL, 2); break; } -- cgit v1.2.3