From 3e9a299231c9967e88e28937a8b202fc1a167ec7 Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Fri, 16 Jun 2006 15:47:05 +0200 Subject: [PATCH] Fix udelay bug in vfd.c for trab board Patch by Martin Krause, 27 Oct 2005 --- CHANGELOG | 3 +++ board/trab/vfd.c | 6 +++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/CHANGELOG b/CHANGELOG index 50bd498..11c47d7 100644 --- 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 --- 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 */ -- 2.7.4