1 files changed, 89 insertions, 0 deletions
diff --git a/arch/arm/mach-l7200/core.c b/arch/arm/mach-l7200/core.c
new file mode 100644
index 0000000..606ca95
--- /dev/null
+++ b/arch/arm/mach-l7200/core.c
@@ -0,0 +1,89 @@
+/*
+ *  linux/arch/arm/mm/mm-lusl7200.c
+ *
+ *  Copyright (C) 2000 Steve Hill (sjhill@cotw.com)
+ *
+ *  Extra MM routines for L7200 architecture
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/page.h>
+
+#include <asm/mach/map.h>
+#include <asm/arch/hardware.h>
+
+/*
+ * IRQ base register
+ */
+#define	IRQ_BASE	(IO_BASE_2 + 0x1000)
+
+/* 
+ * Normal IRQ registers
+ */
+#define IRQ_STATUS	(*(volatile unsigned long *) (IRQ_BASE + 0x000))
+#define IRQ_RAWSTATUS	(*(volatile unsigned long *) (IRQ_BASE + 0x004))
+#define IRQ_ENABLE	(*(volatile unsigned long *) (IRQ_BASE + 0x008))
+#define IRQ_ENABLECLEAR	(*(volatile unsigned long *) (IRQ_BASE + 0x00c))
+#define IRQ_SOFT	(*(volatile unsigned long *) (IRQ_BASE + 0x010))
+#define IRQ_SOURCESEL	(*(volatile unsigned long *) (IRQ_BASE + 0x018))
+
+/* 
+ * Fast IRQ registers
+ */
+#define FIQ_STATUS	(*(volatile unsigned long *) (IRQ_BASE + 0x100))
+#define FIQ_RAWSTATUS	(*(volatile unsigned long *) (IRQ_BASE + 0x104))
+#define FIQ_ENABLE	(*(volatile unsigned long *) (IRQ_BASE + 0x108))
+#define FIQ_ENABLECLEAR	(*(volatile unsigned long *) (IRQ_BASE + 0x10c))
+#define FIQ_SOFT	(*(volatile unsigned long *) (IRQ_BASE + 0x110))
+#define FIQ_SOURCESEL	(*(volatile unsigned long *) (IRQ_BASE + 0x118))
+
+static void l7200_mask_irq(unsigned int irq)
+{
+	IRQ_ENABLECLEAR = 1 << irq;
+}
+
+static void l7200_unmask_irq(unsigned int irq)
+{
+	IRQ_ENABLE = 1 << irq;
+}
+ 
+static void __init l7200_init_irq(void)
+{
+	int irq;
+
+	IRQ_ENABLECLEAR = 0xffffffff;	/* clear all interrupt enables */
+	FIQ_ENABLECLEAR = 0xffffffff;	/* clear all fast interrupt enables */
+
+	for (irq = 0; irq < NR_IRQS; irq++) {
+		irq_desc[irq].valid	= 1;
+		irq_desc[irq].probe_ok	= 1;
+		irq_desc[irq].mask_ack	= l7200_mask_irq;
+		irq_desc[irq].mask	= l7200_mask_irq;
+		irq_desc[irq].unmask	= l7200_unmask_irq;
+	}
+
+	init_FIQ();
+}
+
+static struct map_desc l7200_io_desc[] __initdata = {
+	{ IO_BASE,	IO_START,	IO_SIZE,	MT_DEVICE },
+	{ IO_BASE_2,	IO_START_2,	IO_SIZE_2,	MT_DEVICE },
+	{ AUX_BASE,     AUX_START,      AUX_SIZE,       MT_DEVICE },
+	{ FLASH1_BASE,  FLASH1_START,   FLASH1_SIZE,    MT_DEVICE },
+	{ FLASH2_BASE,  FLASH2_START,   FLASH2_SIZE,    MT_DEVICE }
+};
+
+static void __init l7200_map_io(void)
+{
+	iotable_init(l7200_io_desc, ARRAY_SIZE(l7200_io_desc));
+}
+
+MACHINE_START(L7200, "LinkUp Systems L7200")
+	MAINTAINER("Steve Hill / Scott McConnell")
+	BOOT_MEM(0xf0000000, 0x80040000, 0xd0000000)
+	MAPIO(l7200_map_io)
+	INITIRQ(l7200_init_irq)
+MACHINE_END
+