--- /dev/null
+/*
+ * linux/arch/m32r/kernel/setup_usrv.c
+ *
+ * Setup routines for MITSUBISHI uServer
+ *
+ * Copyright (c) 2001, 2002, 2003 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)))
+
+#if !defined(CONFIG_SMP)
+typedef struct {
+ unsigned long icucr; /* ICU Control Register */
+} icu_data_t;
+#endif /* CONFIG_SMP */
+
+icu_data_t icu_data[M32700UT_NUM_CPU_IRQ];
+
+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 =
+{
+ "M32700-IRQ",
+ startup_mappi_irq,
+ shutdown_mappi_irq,
+ enable_mappi_irq,
+ disable_mappi_irq,
+ mask_and_ack_mappi,
+ end_mappi_irq
+};
+
+/*
+ * Interrupt Control Unit of PLD on M32700UT (Level 2)
+ */
+#define irq2pldirq(x) ((x) - M32700UT_PLD_IRQ_BASE)
+#define pldirq2port(x) (unsigned long)((int)PLD_ICUCR1 + \
+ (((x) - 1) * sizeof(unsigned short)))
+
+typedef struct {
+ unsigned short icucr; /* ICU Control Register */
+} pld_icu_data_t;
+
+static pld_icu_data_t pld_icu_data[M32700UT_NUM_PLD_IRQ];
+
+static void disable_m32700ut_pld_irq(unsigned int irq)
+{
+ unsigned long port, data;
+ unsigned int pldirq;
+
+ pldirq = irq2pldirq(irq);
+ port = pldirq2port(pldirq);
+ data = pld_icu_data[pldirq].icucr|PLD_ICUCR_ILEVEL7;
+ outw(data, port);
+}
+
+static void enable_m32700ut_pld_irq(unsigned int irq)
+{
+ unsigned long port, data;
+ unsigned int pldirq;
+
+ pldirq = irq2pldirq(irq);
+ port = pldirq2port(pldirq);
+ data = pld_icu_data[pldirq].icucr|PLD_ICUCR_IEN|PLD_ICUCR_ILEVEL6;
+ outw(data, port);
+}
+
+static void mask_and_ack_m32700ut_pld(unsigned int irq)
+{
+ disable_m32700ut_pld_irq(irq);
+}
+
+static void end_m32700ut_pld_irq(unsigned int irq)
+{
+ enable_m32700ut_pld_irq(irq);
+ end_mappi_irq(M32R_IRQ_INT1);
+}
+
+static unsigned int startup_m32700ut_pld_irq(unsigned int irq)
+{
+ enable_m32700ut_pld_irq(irq);
+ return 0;
+}
+
+static void shutdown_m32700ut_pld_irq(unsigned int irq)
+{
+ unsigned long port;
+ unsigned int pldirq;
+
+ pldirq = irq2pldirq(irq);
+ port = pldirq2port(pldirq);
+ outw(PLD_ICUCR_ILEVEL7, port);
+}
+
+static struct hw_interrupt_type m32700ut_pld_irq_type =
+{
+ "USRV-PLD-IRQ",
+ startup_m32700ut_pld_irq,
+ shutdown_m32700ut_pld_irq,
+ enable_m32700ut_pld_irq,
+ disable_m32700ut_pld_irq,
+ mask_and_ack_m32700ut_pld,
+ end_m32700ut_pld_irq
+};
+
+void __init init_IRQ(void)
+{
+ static int once = 0;
+ int i;
+
+ if (once)
+ return;
+ else
+ once++;
+
+ /* 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);
+
+#if defined(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 */
+
+ /* INT#67-#71: CFC#0 IREQ on PLD */
+ for (i = 0 ; i < CONFIG_CFC_NUM ; i++ ) {
+ irq_desc[PLD_IRQ_CF0 + i].status = IRQ_DISABLED;
+ irq_desc[PLD_IRQ_CF0 + i].handler = &m32700ut_pld_irq_type;
+ irq_desc[PLD_IRQ_CF0 + i].action = 0;
+ irq_desc[PLD_IRQ_CF0 + i].depth = 1; /* disable nested irq */
+ pld_icu_data[irq2pldirq(PLD_IRQ_CF0 + i)].icucr
+ = PLD_ICUCR_ISMOD01; /* 'L' level sense */
+ disable_m32700ut_pld_irq(PLD_IRQ_CF0 + i);
+ }
+
+#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
+ /* INT#76: 16552D#0 IREQ on PLD */
+ irq_desc[PLD_IRQ_UART0].status = IRQ_DISABLED;
+ irq_desc[PLD_IRQ_UART0].handler = &m32700ut_pld_irq_type;
+ irq_desc[PLD_IRQ_UART0].action = 0;
+ irq_desc[PLD_IRQ_UART0].depth = 1; /* disable nested irq */
+ pld_icu_data[irq2pldirq(PLD_IRQ_UART0)].icucr
+ = PLD_ICUCR_ISMOD03; /* 'H' level sense */
+ disable_m32700ut_pld_irq(PLD_IRQ_UART0);
+
+ /* INT#77: 16552D#1 IREQ on PLD */
+ irq_desc[PLD_IRQ_UART1].status = IRQ_DISABLED;
+ irq_desc[PLD_IRQ_UART1].handler = &m32700ut_pld_irq_type;
+ irq_desc[PLD_IRQ_UART1].action = 0;
+ irq_desc[PLD_IRQ_UART1].depth = 1; /* disable nested irq */
+ pld_icu_data[irq2pldirq(PLD_IRQ_UART1)].icucr
+ = PLD_ICUCR_ISMOD03; /* 'H' level sense */
+ disable_m32700ut_pld_irq(PLD_IRQ_UART1);
+#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */
+
+#if defined(CONFIG_IDC_AK4524) || defined(CONFIG_IDC_AK4524_MODULE)
+ /* INT#80: AK4524 IREQ on PLD */
+ irq_desc[PLD_IRQ_SNDINT].status = IRQ_DISABLED;
+ irq_desc[PLD_IRQ_SNDINT].handler = &m32700ut_pld_irq_type;
+ irq_desc[PLD_IRQ_SNDINT].action = 0;
+ irq_desc[PLD_IRQ_SNDINT].depth = 1; /* disable nested irq */
+ pld_icu_data[irq2pldirq(PLD_IRQ_SNDINT)].icucr
+ = PLD_ICUCR_ISMOD01; /* 'L' level sense */
+ disable_m32700ut_pld_irq(PLD_IRQ_SNDINT);
+#endif /* CONFIG_IDC_AK4524 || CONFIG_IDC_AK4524_MODULE */
+
+ /*
+ * INT1# is used for UART, MMC, CF Controller in FPGA.
+ * We enable it here.
+ */
+ icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD11;
+ enable_mappi_irq(M32R_IRQ_INT1);
+}
+
git://git.onelab.eu / linux-2.6.git / blobdiff