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Add coloured led interface for ARM boards.

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Use it in cpu/arm920t/start.S to indicate U-Boot code has been entered.
This commit is contained in:
Peter Pearse 2007-09-04 16:18:38 +01:00
parent 7462fe0d5a
commit 9f5c3d3720
3 changed files with 31 additions and 9 deletions
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14
cpu/arm920t/start.S Normal file → Executable file
View File

@ -27,9 +27,7 @@
#include <config.h>
#include <version.h>
#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK) || defined(CONFIG_AT91RM9200DF)
#include <led.h>
#endif
#include <asm/led.h>
/*
*************************************************************************
@ -117,13 +115,13 @@ reset:
bic r0,r0,#0x1f
orr r0,r0,#0xd3
msr cpsr,r0
#if CONFIG_AT91RM9200
#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK) || defined(CONFIG_AT91RM9200DF)
bl LED_init
/*
* if board has a red led use it to show U-Boot is running
*/
bl coloured_LED_init
bl red_LED_on
#endif
#ifdef CONFIG_AT91RM9200
#ifdef CONFIG_BOOTBINFUNC
/* code based on entry.S from ATMEL */
#define AT91C_BASE_CKGR 0xFFFFFC20

2
board/at91rm9200dk/led.h → include/asm-arm/led.h Normal file → Executable file
View File

@ -26,7 +26,7 @@
#define __LED_H
#ifndef __ASSEMBLY__
extern void LED_init (void);
extern void coloured_LED_init (void);
extern void red_LED_on(void);
extern void red_LED_off(void);
extern void green_LED_on(void);

24
lib_arm/board.c Normal file → Executable file
View File

@ -111,6 +111,30 @@ void *sbrk (ptrdiff_t increment)
return ((void *) old);
}
/************************************************************************
* Coloured LED functionality
************************************************************************
* May be supplied by boards if desired
*/
void inline __coloured_LED_init (void) {}
void inline coloured_LED_init (void) __attribute__((weak, alias("__coloured_LED_init")));
void inline __red_LED_on (void) {}
void inline red_LED_on (void) __attribute__((weak, alias("__red_LED_on")));
void inline __red_LED_off(void) {}
void inline red_LED_off(void) __attribute__((weak, alias("__red_LED_off")));
void inline __green_LED_on(void) {}
void inline green_LED_on(void) __attribute__((weak, alias("__green_LED_on")));
void inline __green_LED_off(void) {}
void inline green_LED_off(void)__attribute__((weak, alias("__green_LED_off")));
void inline __yellow_LED_on(void) {}
void inline yellow_LED_on(void)__attribute__((weak, alias("__yellow_LED_on")));
void inline __yellow_LED_off(void) {}
void inline yellow_LED_off(void)__attribute__((weak, alias("__yellow_LED_off")));
/************************************************************************
* Init Utilities *
************************************************************************