Enable time handling on 83xx

Patch by Kumar Gala, 11 Jan 2006

CHANGELOG

@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Enable time handling on 83xx
+  Patch by Kumar Gala, 11 Jan 2006
+
 * Make System IO Config Registers board configurable on MPC83xx
   Patch by Kumar Gala, 11 Jan 2006
 

cpu/mpc83xx/interrupts.c

@@ -43,6 +43,16 @@ struct irq_action {
 
 int interrupt_init_cpu (unsigned *decrementer_count)
 {
+	DECLARE_GLOBAL_DATA_PTR;
+
+	volatile immap_t *immr = (immap_t *) CFG_IMMRBAR;
+
+	*decrementer_count = (gd->bus_clk / 4) / CFG_HZ;
+
+	/* Enable e300 time base */
+
+	immr->sysconf.spcr |= 0x00400000;
+
 	return 0;
 }