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Fix udelay bug in vfd.c for trab board

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Patch by Martin Krause, 27 Oct 2005
This commit is contained in:
Wolfgang Denk 2006-06-16 15:47:05 +02:00
parent e00f41eb81
commit 3e9a299231
2 changed files with 8 additions and 1 deletions
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3
CHANGELOG
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@ -2,6 +2,9 @@
Changes since U-Boot 1.1.4: 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 * Disable JFFS2 support for trab board
Patch by Martin Krause, 27 Oct 2005 Patch by Martin Krause, 27 Oct 2005

6
board/trab/vfd.c
View File

@ -358,6 +358,8 @@ void transfer_pic(int display, unsigned char *adr, int height, int width)
*/ */
int vfd_init_clocks (void) int vfd_init_clocks (void)
{ {
int i;
S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO(); S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
S3C24X0_TIMERS * const timers = S3C24X0_GetBase_TIMERS(); S3C24X0_TIMERS * const timers = S3C24X0_GetBase_TIMERS();
S3C24X0_LCD * const lcd = S3C24X0_GetBase_LCD(); 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->PCUP = (gpio->PCUP & 0xFFF0); /* activate GPC0...GPC3 pullups */
gpio->PCCON = (gpio->PCCON & 0xFFFFFF00); /* configure GPC0...GPC3 as inputs */ 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_board_id = (~gpio->PCDAT) & 0x000F; /* read GPC0...GPC3 port pins */
VFD_DISABLE; /* activate blank for the vfd */ VFD_DISABLE; /* activate blank for the vfd */