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This patch adds a IRQ demultiplexer callback to the arm920 cpu core code,
plus a stub implementation of it for the S3C2410.
Index: u-boot.git/cpu/arm920t/interrupts.c
===================================================================
--- u-boot.git.orig/cpu/arm920t/interrupts.c 2007-02-05 22:49:11.000000000 +0100
+++ u-boot.git/cpu/arm920t/interrupts.c 2007-02-05 23:19:01.000000000 +0100
@@ -161,11 +161,16 @@
void do_irq (struct pt_regs *pt_regs)
{
-#if defined (CONFIG_USE_IRQ) && defined (CONFIG_ARCH_INTEGRATOR)
+#if defined (CONFIG_USE_IRQ)
+#if defined (ARM920_IRQ_CALLBACK)
+ ARM920_IRQ_CALLBACK();
+ return;
+#elif defined (CONFIG_ARCH_INTEGRATOR)
/* ASSUMED to be a timer interrupt */
/* Just clear it - count handled in */
/* integratorap.c */
*(volatile ulong *)(CFG_TIMERBASE + 0x0C) = 0;
+#endif /* ARCH_INTEGRATOR */
#else
printf ("interrupt request\n");
show_regs (pt_regs);
Index: u-boot.git/cpu/arm920t/s3c24x0/interrupts.c
===================================================================
--- u-boot.git.orig/cpu/arm920t/s3c24x0/interrupts.c 2007-02-05 22:49:11.000000000 +0100
+++ u-boot.git/cpu/arm920t/s3c24x0/interrupts.c 2007-02-05 23:21:35.000000000 +0100
@@ -216,4 +216,13 @@
/*NOTREACHED*/
}
+#ifdef CONFIG_USE_IRQ
+void s3c2410_irq(void)
+{
+ S3C24X0_INTERRUPT * irq = S3C24X0_GetBase_INTERRUPT();
+ u_int32_t intpnd = irq->INTPND;
+
+}
+#endif /* USE_IRQ */
+
#endif /* defined(CONFIG_S3C2400) || defined (CONFIG_S3C2410) || defined (CONFIG_TRAB) */
Index: u-boot.git/include/common.h
===================================================================
--- u-boot.git.orig/include/common.h 2007-02-05 22:49:11.000000000 +0100
+++ u-boot.git/include/common.h 2007-02-05 23:19:01.000000000 +0100
@@ -452,6 +452,8 @@
ulong get_PCI_freq (void);
#endif
#if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410) || defined(CONFIG_LH7A40X)
+void s3c2410_irq(void);
+#define ARM920_IRQ_CALLBACK s3c2410_irq
ulong get_FCLK (void);
ulong get_HCLK (void);
ulong get_PCLK (void);
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