summaryrefslogtreecommitdiffstats
path: root/arch/m32r/kernel/setup_mappi3.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m32r/kernel/setup_mappi3.c')
-rw-r--r--arch/m32r/kernel/setup_mappi3.c208
1 files changed, 208 insertions, 0 deletions
diff --git a/arch/m32r/kernel/setup_mappi3.c b/arch/m32r/kernel/setup_mappi3.c
new file mode 100644
index 000000000000..3d60a85aaec5
--- /dev/null
+++ b/arch/m32r/kernel/setup_mappi3.c
@@ -0,0 +1,208 @@
+/*
+ * linux/arch/m32r/kernel/setup_mappi3.c
+ *
+ * Setup routines for Renesas MAPPI-III(M3A-2170) Board
+ *
+ * Copyright (c) 2001-2005 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 <linux/device.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_mappi3_irq(unsigned int irq)
+{
+ unsigned long port, data;
+
+ if ((irq == 0) ||(irq >= NR_IRQS)) {
+ printk("bad irq 0x%08x\n", irq);
+ return;
+ }
+ port = irq2port(irq);
+ data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
+ outl(data, port);
+}
+
+static void enable_mappi3_irq(unsigned int irq)
+{
+ unsigned long port, data;
+
+ if ((irq == 0) ||(irq >= NR_IRQS)) {
+ printk("bad irq 0x%08x\n", irq);
+ return;
+ }
+ port = irq2port(irq);
+ data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
+ outl(data, port);
+}
+
+static void mask_and_ack_mappi3(unsigned int irq)
+{
+ disable_mappi3_irq(irq);
+}
+
+static void end_mappi3_irq(unsigned int irq)
+{
+ enable_mappi3_irq(irq);
+}
+
+static unsigned int startup_mappi3_irq(unsigned int irq)
+{
+ enable_mappi3_irq(irq);
+ return (0);
+}
+
+static void shutdown_mappi3_irq(unsigned int irq)
+{
+ unsigned long port;
+
+ port = irq2port(irq);
+ outl(M32R_ICUCR_ILEVEL7, port);
+}
+
+static struct hw_interrupt_type mappi3_irq_type =
+{
+ .typename = "MAPPI3-IRQ",
+ .startup = startup_mappi3_irq,
+ .shutdown = shutdown_mappi3_irq,
+ .enable = enable_mappi3_irq,
+ .disable = disable_mappi3_irq,
+ .ack = mask_and_ack_mappi3,
+ .end = end_mappi3_irq
+};
+
+void __init init_IRQ(void)
+{
+#if defined(CONFIG_SMC91X)
+ /* INT0 : LAN controller (SMC91111) */
+ irq_desc[M32R_IRQ_INT0].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_INT0].handler = &mappi3_irq_type;
+ irq_desc[M32R_IRQ_INT0].action = 0;
+ irq_desc[M32R_IRQ_INT0].depth = 1;
+ icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
+ disable_mappi3_irq(M32R_IRQ_INT0);
+#endif /* CONFIG_SMC91X */
+
+ /* MFT2 : system timer */
+ irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_MFT2].handler = &mappi3_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_mappi3_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 = &mappi3_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_mappi3_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 = &mappi3_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_mappi3_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 = &mappi3_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_mappi3_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 = &mappi3_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_mappi3_irq(M32R_IRQ_SIO1_S);
+#endif /* CONFIG_M32R_USE_DBG_CONSOLE */
+
+#if defined(CONFIG_USB)
+ /* INT1 : USB Host controller interrupt */
+ irq_desc[M32R_IRQ_INT1].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_INT1].handler = &mappi3_irq_type;
+ irq_desc[M32R_IRQ_INT1].action = 0;
+ irq_desc[M32R_IRQ_INT1].depth = 1;
+ icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01;
+ disable_mappi3_irq(M32R_IRQ_INT1);
+#endif /* CONFIG_USB */
+
+ /* ICUCR40: CFC IREQ */
+ irq_desc[PLD_IRQ_CFIREQ].status = IRQ_DISABLED;
+ irq_desc[PLD_IRQ_CFIREQ].handler = &mappi3_irq_type;
+ irq_desc[PLD_IRQ_CFIREQ].action = 0;
+ irq_desc[PLD_IRQ_CFIREQ].depth = 1; /* disable nested irq */
+ icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
+ disable_mappi3_irq(PLD_IRQ_CFIREQ);
+
+#if defined(CONFIG_M32R_CFC)
+ /* ICUCR41: CFC Insert */
+ irq_desc[PLD_IRQ_CFC_INSERT].status = IRQ_DISABLED;
+ irq_desc[PLD_IRQ_CFC_INSERT].handler = &mappi3_irq_type;
+ irq_desc[PLD_IRQ_CFC_INSERT].action = 0;
+ irq_desc[PLD_IRQ_CFC_INSERT].depth = 1; /* disable nested irq */
+ icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00;
+ disable_mappi3_irq(PLD_IRQ_CFC_INSERT);
+
+ /* ICUCR42: CFC Eject */
+ irq_desc[PLD_IRQ_CFC_EJECT].status = IRQ_DISABLED;
+ irq_desc[PLD_IRQ_CFC_EJECT].handler = &mappi3_irq_type;
+ irq_desc[PLD_IRQ_CFC_EJECT].action = 0;
+ irq_desc[PLD_IRQ_CFC_EJECT].depth = 1; /* disable nested irq */
+ icu_data[PLD_IRQ_CFC_EJECT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
+ disable_mappi3_irq(PLD_IRQ_CFC_EJECT);
+#endif /* CONFIG_M32R_CFC */
+}
+
+#define LAN_IOSTART 0x300
+#define LAN_IOEND 0x320
+static struct resource smc91x_resources[] = {
+ [0] = {
+ .start = (LAN_IOSTART),
+ .end = (LAN_IOEND),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = M32R_IRQ_INT0,
+ .end = M32R_IRQ_INT0,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device smc91x_device = {
+ .name = "smc91x",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(smc91x_resources),
+ .resource = smc91x_resources,
+};
+
+static int __init platform_init(void)
+{
+ platform_device_register(&smc91x_device);
+ return 0;
+}
+arch_initcall(platform_init);
OpenPOWER on IntegriCloud