From: Sascha Laue <[EMAIL PROTECTED]>
Signed-off-by: Sascha Laue <[EMAIL PROTECTED]>
---
post/board/lwmon5/dsp.c | 21 +++++++++++++++++++--
1 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/post/board/lwmon5/dsp.c b/post/board/lwmon5/dsp.c
index a96ac7d..bc12e42 100644
--- a/post/board/lwmon5/dsp.c
+++ b/post/board/lwmon5/dsp.c
@@ -33,20 +33,37 @@
DECLARE_GLOBAL_DATA_PTR;
-#define DSP_STATUS_REG 0xC4000008
+#define DSP_STATUS_REG 0xC4000008
+#define FPGA_STATUS_REG 0xC400000C
int dsp_post_test(int flags)
{
+ uint old_value;
uint read_value;
int ret;
+
+ /* momorize fpga status */
+ old_value = in_be32((void *)FPGA_STATUS_REG);
+ /* enable outputs */
+ out_be32((void *)FPGA_STATUS_REG, 0x30);
+
+ /* generate sync signal */
+ out_be32((void *)DSP_STATUS_REG, 0x300);
+ udelay(5);
+ out_be32((void *)DSP_STATUS_REG, 0);
+ udelay(500);
+ /* read status */
ret = 0;
read_value = in_be32((void *)DSP_STATUS_REG) & 0x3;
- if (read_value != 0x3) {
+ if (!(read_value & 0x3)) {
post_log("\nDSP status read %08X\n", read_value);
ret = 1;
}
+ /* restore fpga status */
+ out_be32((void *)FPGA_STATUS_REG, old_value);
+
return ret;
}
--
1.5.2.4
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
U-Boot-Users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/u-boot-users
