* Implement new mechanism to export U-Boot's functions to standalone

  applications: instead of using (PPC-specific) system calls we now
  use a jump table; please see doc/README.standalone for details

* Patch by Dave Westwood, 24 Jul 2003:
  added support for Unity OS (a proprietary OS)

2 files changed, 5 insertions, 73 deletions

diff --git a/cpu/mpc8xx/lcd.c b/cpu/mpc8xx/lcd.c
index c1509284b0..f2e404c4b9 100644
--- a/cpu/mpc8xx/lcd.c
+++ b/cpu/mpc8xx/lcd.c
@@ -61,9 +61,9 @@
 /* ** BITMAP DISPLAY SUPPORT  -- should probably be moved elsewhere	*/
 /************************************************************************/
 
-#if (CONFIG_COMMANDS & CFG_CMD_BMP)
+#if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 #include <bmp_layout.h>
-#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) */
+#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
 
 /************************************************************************/
 /* ** FONT AND LOGO DATA						*/
@@ -1176,7 +1176,7 @@ static void bitmap_plot (int x, int y)
 }
 #endif /* CONFIG_LCD_LOGO */
 
-#if (CONFIG_COMMANDS & CFG_CMD_BMP)
+#if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 /*
  * Display the BMP file located at address bmp_image.
  * Only uncompressed
@@ -1273,7 +1273,7 @@ int lcd_display_bitmap(ulong bmp_image)
 
 	return (0);
 }
-#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) */
+#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
 
 /*----------------------------------------------------------------------*/
 
diff --git a/cpu/mpc8xx/start.S b/cpu/mpc8xx/start.S
index 81a4dc07c9..893c0f810f 100644
--- a/cpu/mpc8xx/start.S
+++ b/cpu/mpc8xx/start.S
@@ -266,75 +266,7 @@ ProgramCheck:
 	STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
 	STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
 	STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
-	. = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
-	addis	r11,r0,0		/* get functions table addr */
-	ori	r11,r11,0		/* Note: this code is patched in trap_init */
-	addis	r12,r0,0		/* get number of functions */
-	ori	r12,r12,0
-
-	cmplw	0, r0, r12
-	bge	1f
-
-	rlwinm	r0,r0,2,0,31		/* fn_addr = fn_tbl[r0] */
-	add	r11,r11,r0
-	lwz	r11,0(r11)
-
-	li	r20,0xd00-4		/* Get stack pointer */
-	lwz	r12,0(r20)
-	subi	r12,r12,12		/* Adjust stack pointer */
-	li	r0,0xc00+_end_back-SystemCall
-	cmplw	0, r0, r12		/* Check stack overflow */
-	bgt	1f
-	stw	r12,0(r20)
-
-	mflr	r0
-	stw	r0,0(r12)
-	mfspr	r0,SRR0
-	stw	r0,4(r12)
-	mfspr	r0,SRR1
-	stw	r0,8(r12)
-
-	li	r12,0xc00+_back-SystemCall
-	mtlr	r12
-	mtspr	SRR0,r11
-
-1:	SYNC
-	rfi
-
-_back:
-
-	mfmsr	r11			/* Disable interrupts */
-	li	r12,0
-	ori	r12,r12,MSR_EE
-	andc	r11,r11,r12
-	SYNC				/* Some chip revs need this... */
-	mtmsr	r11
-	SYNC
-
-	li	r12,0xd00-4		/* restore regs */
-	lwz	r12,0(r12)
-
-	lwz	r11,0(r12)
-	mtlr	r11
-	lwz	r11,4(r12)
-	mtspr	SRR0,r11
-	lwz	r11,8(r12)
-	mtspr	SRR1,r11
-
-	addi	r12,r12,12		/* Adjust stack pointer */
-	li	r20,0xd00-4
-	stw	r12,0(r20)
-
-	SYNC
-	rfi
-_end_back:
-
+	STD_EXCEPTION(0xc00, SystemCall, UnknownException)
 	STD_EXCEPTION(0xd00, SingleStep, UnknownException)
 
 	STD_EXCEPTION(0xe00, Trap_0e, UnknownException)