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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m32r/kernel/setup_mappi.c
downloadconfigs-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m32r/kernel/setup_mappi.c')
-rw-r--r--arch/m32r/kernel/setup_mappi.c160
1 files changed, 160 insertions, 0 deletions
diff --git a/arch/m32r/kernel/setup_mappi.c b/arch/m32r/kernel/setup_mappi.c
new file mode 100644
index 00000000000..1e74110f067
--- /dev/null
+++ b/arch/m32r/kernel/setup_mappi.c
@@ -0,0 +1,160 @@
+/*
+ * linux/arch/m32r/kernel/setup_mappi.c
+ *
+ * Setup routines for Renesas MAPPI Board
+ *
+ * Copyright (c) 2001, 2002 Hiroyuki Kondo, Hirokazu Takata,
+ * Hitoshi Yamamoto
+ */
+
+#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_mappi_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_mappi_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_mappi_irq(irq);
+}
+
+static void end_mappi_irq(unsigned int irq)
+{
+ enable_mappi_irq(irq);
+}
+
+static unsigned int startup_mappi_irq(unsigned int irq)
+{
+ enable_mappi_irq(irq);
+ return (0);
+}
+
+static void shutdown_mappi_irq(unsigned int irq)
+{
+ unsigned long port;
+
+ port = irq2port(irq);
+ outl(M32R_ICUCR_ILEVEL7, port);
+}
+
+static struct hw_interrupt_type mappi_irq_type =
+{
+ "MAPPI-IRQ",
+ startup_mappi_irq,
+ shutdown_mappi_irq,
+ enable_mappi_irq,
+ disable_mappi_irq,
+ mask_and_ack_mappi,
+ end_mappi_irq
+};
+
+void __init init_IRQ(void)
+{
+ static int once = 0;
+
+ if (once)
+ return;
+ else
+ once++;
+
+#ifdef CONFIG_NE2000
+ /* INT0 : LAN controller (RTL8019AS) */
+ irq_desc[M32R_IRQ_INT0].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_INT0].handler = &mappi_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_mappi_irq(M32R_IRQ_INT0);
+#endif /* CONFIG_M32R_NE2000 */
+
+ /* MFT2 : system timer */
+ irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_MFT2].handler = &mappi_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_mappi_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 = &mappi_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_mappi_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 = &mappi_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_mappi_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 = &mappi_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_mappi_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 = &mappi_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_mappi_irq(M32R_IRQ_SIO1_S);
+#endif /* CONFIG_SERIAL_M32R_SIO */
+
+#if defined(CONFIG_M32R_PCC)
+ /* INT1 : pccard0 interrupt */
+ irq_desc[M32R_IRQ_INT1].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_INT1].handler = &mappi_irq_type;
+ irq_desc[M32R_IRQ_INT1].action = 0;
+ irq_desc[M32R_IRQ_INT1].depth = 1;
+ icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD00;
+ disable_mappi_irq(M32R_IRQ_INT1);
+
+ /* INT2 : pccard1 interrupt */
+ irq_desc[M32R_IRQ_INT2].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_INT2].handler = &mappi_irq_type;
+ irq_desc[M32R_IRQ_INT2].action = 0;
+ irq_desc[M32R_IRQ_INT2].depth = 1;
+ icu_data[M32R_IRQ_INT2].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD00;
+ disable_mappi_irq(M32R_IRQ_INT2);
+#endif /* CONFIG_M32RPCC */
+}