PPC cpu stuff

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@872 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/arch/ppc/lib/cpu.c

@@ -0,0 +1,36 @@
+#include <console/console.h>
+#include <mem.h>
+#include <arch/io.h>
+#include <string.h>
+#include <cpu/cpu.h>
+#include <cpu/ppc/cpuid.h>
+
+static void cache_on(struct mem_range *mem)
+{
+}
+
+static void interrupts_on()
+{
+}
+
+unsigned long cpu_initialize(struct mem_range *mem)
+{
+	/* Because we busy wait at the printk spinlock.
+	 * It is important to keep the number of printed messages
+	 * from secondary cpus to a minimum, when debugging is
+	 * disabled.
+	 */
+	unsigned long processor_id = this_processors_id();
+	printk_notice("Initializing CPU #%d\n", processor_id);
+	
+	/* Turn on caching if we haven't already */
+	cache_on(mem);
+
+	display_cpuid();
+
+	interrupts_on();
+
+	printk_info("CPU #%d Initialized\n", processor_id);
+	return processor_id;
+}
+

src/arch/ppc/lib/cpuid.c

@@ -0,0 +1,58 @@
+/* $Id$ */
+/* Copyright 2000  AG Electronics Ltd. */
+/* This code is distributed without warranty under the GPL v2 (see COPYING) */
+
+#include "ppc.h"
+#include "ppcreg.h"
+#include <console/console.h>
+
+void display_cpuid(void)
+{
+    unsigned type = __getpvr() >> 16;
+    unsigned version = __getpvr() & 0xffff;
+    const char *cpu_string = 0;
+    switch(type) {
+        case 1:
+            cpu_string = "601";
+            break;
+        case 3:
+            cpu_string = "603";
+            break;
+        case 4:
+            cpu_string = "604";
+            break;
+        case 6:
+            cpu_string = "603e";
+            break;
+        case 7:
+            cpu_string = "603ev";
+            break;
+        case 8:
+            cpu_string = "750";
+            break;
+        case 9:
+            cpu_string = "604e";
+            break;
+        case 10:
+            cpu_string = "604ev5 (MachV)";
+            break;
+        case 12:
+            cpu_string = "7400";
+            break;
+        case 50:
+            cpu_string = "821";
+            break;
+        case 80:
+            cpu_string = "860";
+            break;
+	case 0x800c:
+	    cpu_string = "7410";
+	    break;
+    }
+    if (cpu_string)
+        printk_info("PowerPC %s", cpu_string);       
+    else
+        printk_info("PowerPC unknown (0x%x)", type);
+    printk_info(" CPU, version %d.%d\n", version >> 8, version & 0xff);       
+}
+