Fix udelay bug in vfd.c for trab board

Patch by Martin Krause, 27 Oct 2005

diff --git a/CHANGELOG b/CHANGELOG
index 50bd498..11c47d7 100644 (file)
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Fix udelay bug in vfd.c for trab board
+  Patch by Martin Krause, 27 Oct 2005
+
 * Disable JFFS2 support for trab board
   Patch by Martin Krause, 27 Oct 2005
 

diff --git a/board/trab/vfd.c b/board/trab/vfd.c
index cea8b0b..2f1e7d7 100644 (file)
--- a/board/trab/vfd.c
+++ b/board/trab/vfd.c
@@ -358,6 +358,8 @@ void transfer_pic(int display, unsigned char *adr, int height, int width)
  */
 int vfd_init_clocks (void)
 {
+       int i;
+
        S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
        S3C24X0_TIMERS * const timers = S3C24X0_GetBase_TIMERS();
        S3C24X0_LCD * const lcd = S3C24X0_GetBase_LCD();
@@ -367,7 +369,9 @@ int vfd_init_clocks (void)
         */
        gpio->PCUP = (gpio->PCUP & 0xFFF0);     /* activate  GPC0...GPC3 pullups */
        gpio->PCCON = (gpio->PCCON & 0xFFFFFF00);       /* configure GPC0...GPC3 as inputs */
-       udelay (10);                            /* allow signals to settle */
+       /* allow signals to settle */
+       for (i=0; i<10000; i++) /* udelay isn't working yet at this point! */
+               __asm("NOP");
        vfd_board_id = (~gpio->PCDAT) & 0x000F; /* read GPC0...GPC3 port pins */
 
        VFD_DISABLE;                            /* activate blank for the vfd */