1 files changed, 143 insertions, 0 deletions

diff --git a/arch/m32r/kernel/setup_oaks32r.c b/arch/m32r/kernel/setup_oaks32r.c
new file mode 100644
index 000000000000..b04834526c9a
--- /dev/null
+++ b/arch/m32r/kernel/setup_oaks32r.c
@@ -0,0 +1,143 @@
+/*
+ *  linux/arch/m32r/kernel/setup_oaks32r.c
+ *
+ *  Setup routines for OAKS32R Board
+ *
+ *  Copyright (c) 2002-2004   Hiroyuki Kondo, Hirokazu Takata,
+ *                            Hitoshi Yamamoto, Mamoru Sakugawa
+ */
+
+#include <linux/config.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/system.h>
+#include <asm/m32r.h>
+#include <asm/io.h>
+
+#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
+
+#ifndef CONFIG_SMP
+typedef struct {
+        unsigned long icucr;  /* ICU Control Register */
+} icu_data_t;
+#endif /* CONFIG_SMP */
+
+icu_data_t icu_data[NR_IRQS];
+
+static void disable_oaks32r_irq(unsigned int irq)
+{
+        unsigned long port, data;
+
+        port = irq2port(irq);
+        data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
+        outl(data, port);
+}
+
+static void enable_oaks32r_irq(unsigned int irq)
+{
+        unsigned long port, data;
+
+        port = irq2port(irq);
+        data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
+        outl(data, port);
+}
+
+static void mask_and_ack_mappi(unsigned int irq)
+{
+        disable_oaks32r_irq(irq);
+}
+
+static void end_oaks32r_irq(unsigned int irq)
+{
+        enable_oaks32r_irq(irq);
+}
+
+static unsigned int startup_oaks32r_irq(unsigned int irq)
+{
+        enable_oaks32r_irq(irq);
+        return (0);
+}
+
+static void shutdown_oaks32r_irq(unsigned int irq)
+{
+        unsigned long port;
+
+        port = irq2port(irq);
+        outl(M32R_ICUCR_ILEVEL7, port);
+}
+
+static struct hw_interrupt_type oaks32r_irq_type =
+{
+        "OAKS32R-IRQ",
+        startup_oaks32r_irq,
+        shutdown_oaks32r_irq,
+        enable_oaks32r_irq,
+        disable_oaks32r_irq,
+        mask_and_ack_mappi,
+        end_oaks32r_irq
+};
+
+void __init init_IRQ(void)
+{
+        static int once = 0;
+
+        if (once)
+                return;
+        else
+                once++;
+
+#ifdef CONFIG_NE2000
+        /* INT3 : LAN controller (RTL8019AS) */
+        irq_desc[M32R_IRQ_INT3].status = IRQ_DISABLED;
+        irq_desc[M32R_IRQ_INT3].handler = &oaks32r_irq_type;
+        irq_desc[M32R_IRQ_INT3].action = 0;
+        irq_desc[M32R_IRQ_INT3].depth = 1;
+        icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
+        disable_oaks32r_irq(M32R_IRQ_INT3);
+#endif /* CONFIG_M32R_NE2000 */
+
+        /* MFT2 : system timer */
+        irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED;
+        irq_desc[M32R_IRQ_MFT2].handler = &oaks32r_irq_type;
+        irq_desc[M32R_IRQ_MFT2].action = 0;
+        irq_desc[M32R_IRQ_MFT2].depth = 1;
+        icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
+        disable_oaks32r_irq(M32R_IRQ_MFT2);
+
+#ifdef CONFIG_SERIAL_M32R_SIO
+        /* SIO0_R : uart receive data */
+        irq_desc[M32R_IRQ_SIO0_R].status = IRQ_DISABLED;
+        irq_desc[M32R_IRQ_SIO0_R].handler = &oaks32r_irq_type;
+        irq_desc[M32R_IRQ_SIO0_R].action = 0;
+        irq_desc[M32R_IRQ_SIO0_R].depth = 1;
+        icu_data[M32R_IRQ_SIO0_R].icucr = 0;
+        disable_oaks32r_irq(M32R_IRQ_SIO0_R);
+
+        /* SIO0_S : uart send data */
+        irq_desc[M32R_IRQ_SIO0_S].status = IRQ_DISABLED;
+        irq_desc[M32R_IRQ_SIO0_S].handler = &oaks32r_irq_type;
+        irq_desc[M32R_IRQ_SIO0_S].action = 0;
+        irq_desc[M32R_IRQ_SIO0_S].depth = 1;
+        icu_data[M32R_IRQ_SIO0_S].icucr = 0;
+        disable_oaks32r_irq(M32R_IRQ_SIO0_S);
+
+        /* SIO1_R : uart receive data */
+        irq_desc[M32R_IRQ_SIO1_R].status = IRQ_DISABLED;
+        irq_desc[M32R_IRQ_SIO1_R].handler = &oaks32r_irq_type;
+        irq_desc[M32R_IRQ_SIO1_R].action = 0;
+        irq_desc[M32R_IRQ_SIO1_R].depth = 1;
+        icu_data[M32R_IRQ_SIO1_R].icucr = 0;
+        disable_oaks32r_irq(M32R_IRQ_SIO1_R);
+
+        /* SIO1_S : uart send data */
+        irq_desc[M32R_IRQ_SIO1_S].status = IRQ_DISABLED;
+        irq_desc[M32R_IRQ_SIO1_S].handler = &oaks32r_irq_type;
+        irq_desc[M32R_IRQ_SIO1_S].action = 0;
+        irq_desc[M32R_IRQ_SIO1_S].depth = 1;
+        icu_data[M32R_IRQ_SIO1_S].icucr = 0;
+        disable_oaks32r_irq(M32R_IRQ_SIO1_S);
+#endif /* CONFIG_SERIAL_M32R_SIO */
+
+}