[U-Boot] [PATCH] MIMC200: reduce LCD pixclock

Mark Jackson mpfj-list at mimc.co.uk
Tue Aug 11 12:33:47 CEST 2009


[Resent to add CC u-boot at lists.denx.de]

The initial pixclock for the MIMC200 board is wrong (and causes
screen corruption due to DMA underruns).

This patch simply reduces the pixel clock to fix the problem.

Signed-off-by: Mark Jackson <mpfj at mimc.co.uk>
---
 board/mimc/mimc200/mimc200.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/board/mimc/mimc200/mimc200.c b/board/mimc/mimc200/mimc200.c
index b773c1a..0dcacb9 100644
--- a/board/mimc/mimc200/mimc200.c
+++ b/board/mimc/mimc200/mimc200.c
@@ -38,7 +38,7 @@
 vidinfo_t panel_info = {
 	.vl_col			= 480,		/* Number of columns */
 	.vl_row			= 272,		/* Number of rows */
-	.vl_clk			= 10000000,	/* pixel clock in ps */
+	.vl_clk			= 5000000,	/* pixel clock in ps */
 	.vl_sync		= ATMEL_LCDC_INVCLK_INVERTED |
 				  ATMEL_LCDC_INVLINE_INVERTED |
 				  ATMEL_LCDC_INVFRAME_INVERTED,



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