1 files changed, 125 insertions, 0 deletions
diff --git a/arch/x86/mach-voyager/setup.c b/arch/x86/mach-voyager/setup.c
new file mode 100644
index 00000000000..2b55694e640
--- /dev/null
+++ b/arch/x86/mach-voyager/setup.c
@@ -0,0 +1,125 @@
+/*
+ *	Machine specific setup for generic
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/arch_hooks.h>
+#include <asm/voyager.h>
+#include <asm/e820.h>
+#include <asm/io.h>
+#include <asm/setup.h>
+
+void __init pre_intr_init_hook(void)
+{
+	init_ISA_irqs();
+}
+
+/*
+ * IRQ2 is cascade interrupt to second interrupt controller
+ */
+static struct irqaction irq2 = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL};
+
+void __init intr_init_hook(void)
+{
+#ifdef CONFIG_SMP
+	smp_intr_init();
+#endif
+
+	setup_irq(2, &irq2);
+}
+
+void __init pre_setup_arch_hook(void)
+{
+	/* Voyagers run their CPUs from independent clocks, so disable
+	 * the TSC code because we can't sync them */
+	tsc_disable = 1;
+}
+
+void __init trap_init_hook(void)
+{
+}
+
+static struct irqaction irq0  = {
+	.handler = timer_interrupt,
+	.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
+	.mask = CPU_MASK_NONE,
+	.name = "timer"
+};
+
+void __init time_init_hook(void)
+{
+	irq0.mask = cpumask_of_cpu(safe_smp_processor_id());
+	setup_irq(0, &irq0);
+}
+
+/* Hook for machine specific memory setup. */
+
+char * __init machine_specific_memory_setup(void)
+{
+	char *who;
+
+	who = "NOT VOYAGER";
+
+	if(voyager_level == 5) {
+		__u32 addr, length;
+		int i;
+
+		who = "Voyager-SUS";
+
+		e820.nr_map = 0;
+		for(i=0; voyager_memory_detect(i, &addr, &length); i++) {
+			add_memory_region(addr, length, E820_RAM);
+		}
+		return who;
+	} else if(voyager_level == 4) {
+		__u32 tom;
+		__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8;
+		/* select the DINO config space */
+		outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT);
+		/* Read DINO top of memory register */
+		tom = ((inb(catbase + 0x4) & 0xf0) << 16)
+			+ ((inb(catbase + 0x5) & 0x7f) << 24);
+
+		if(inb(catbase) != VOYAGER_DINO) {
+			printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
+			tom = (EXT_MEM_K)<<10;
+		}
+		who = "Voyager-TOM";
+		add_memory_region(0, 0x9f000, E820_RAM);
+		/* map from 1M to top of memory */
+		add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM);
+		/* FIXME: Should check the ASICs to see if I need to
+		 * take out the 8M window.  Just do it at the moment
+		 * */
+		add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED);
+		return who;
+	}
+
+	who = "BIOS-e820";
+
+	/*
+	 * Try to copy the BIOS-supplied E820-map.
+	 *
+	 * Otherwise fake a memory map; one section from 0k->640k,
+	 * the next section from 1mb->appropriate_mem_k
+	 */
+	sanitize_e820_map(E820_MAP, &E820_MAP_NR);
+	if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
+		unsigned long mem_size;
+
+		/* compare results from other methods and take the greater */
+		if (ALT_MEM_K < EXT_MEM_K) {
+			mem_size = EXT_MEM_K;
+			who = "BIOS-88";
+		} else {
+			mem_size = ALT_MEM_K;
+			who = "BIOS-e801";
+		}
+
+		e820.nr_map = 0;
+		add_memory_region(0, LOWMEMSIZE(), E820_RAM);
+		add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
+  	}
+	return who;
+}