[rtems commit] PR2029: Milkymist VGA: adjust video timings

[gedare at rtems.org]

Module:    rtems
Branch:    master
Commit:    f0d2261bebd925cf31aa08f77a6ff8123bf63832
Changeset: http://git.rtems.org/rtems/commit/?id=f0d2261bebd925cf31aa08f77a6ff8123bf63832

Author:    Xiangfu Liu <xiangfu at sharism dot cc>
Date:      Sat Mar  3 15:50:53 2012 -0500

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 <gedare at rtems.org>

---

 .../shared/milkymist_framebuffer/framebuffer.c     |   18 +++++++++---------
 1 files 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 b1d0612..9ea1831 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;
   }