patch-2.4.22 linux-2.4.22/arch/sh64/lib/panic.c

• Lines: 61
• Date: 2003-08-25 04:44:40.000000000 -0700
• Orig file: linux-2.4.21/arch/sh64/lib/panic.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/arch/sh64/lib/panic.c linux-2.4.22/arch/sh64/lib/panic.c
@@ -0,0 +1,60 @@
+/* Panic handler. MUST BE PIC. BE CAREFUL WHAT YOU DO,
+ * AS THERE ARE NO STATICS AVAILABLE, AND NOWHERE TO GO 
+ * MMU IS OFF!!!!!!!!
+ */
+
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <asm/registers.h>
+
+/* THIS IS A PHYSICAL ADDRESS */
+#define HDSP2534_ADDR (0x04002100)
+
+void
+panic_handler(unsigned long panicPC, unsigned long panicSSR,
+	      unsigned long panicEXPEVT)
+{
+	int i;
+	unsigned nibble;
+
+#ifdef CONFIG_SH_CAYMAN
+
+	while (1) {
+
+		/* This piece of code displays the PC on the LED display */
+		for (i = 0; i < 8; i++) {
+			nibble = ((panicPC >> (i * 4)) & 0xf);
+
+			ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
+				  HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
+		}
+
+		for (i = 0; i < 2500000; i++) {
+		}		/* poor man's delay */
+
+		for (i = 0; i < 8; i++) {
+			nibble = ((panicSSR >> (i * 4)) & 0xf);
+
+			ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
+				  HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
+		}
+
+		for (i = 0; i < 2500000; i++) {
+		}		/* poor man's delay */
+
+		for (i = 0; i < 8; i++) {
+			nibble = ((panicEXPEVT >> (i * 4)) & 0xf);
+
+			ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
+				  HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
+		}
+
+		for (i = 0; i < 2500000; i++) {
+		}		/* poor man's delay */
+	}
+#endif
+
+	/* Never return from the panic handler */
+	for (;;) ;
+
+}