This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / sh / boards / se / 73180 / irq.c

diff --git a/arch/sh/boards/se/73180/irq.c b/arch/sh/boards/se/73180/irq.c
new file mode 100644 (file)
index 0000000..70f04ca
--- /dev/null
+++ b/arch/sh/boards/se/73180/irq.c
@@ -0,0 +1,137 @@
+/*
+ * arch/sh/boards/se/73180/irq.c
+ *
+ * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
+ * Based on arch/sh/boards/se/7300/irq.c
+ *
+ * Modified for SH-Mobile SolutionEngine 73180 Support
+ *              by YOSHII Takashi <yoshii-takashi@hitachi-ul.co.jp>
+ *
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/mach/se73180.h>
+
+static int
+intreq2irq(int i)
+{
+       if (i == 5)
+               return 10;
+       return 32 + 7 - i;
+}
+
+static int
+irq2intreq(int irq)
+{
+       if (irq == 10)
+               return 5;
+       return 7 - (irq - 32);
+}
+
+static void
+disable_intreq_irq(unsigned int irq)
+{
+       ctrl_outb(1 << (7 - irq2intreq(irq)), INTMSK0);
+}
+
+static void
+enable_intreq_irq(unsigned int irq)
+{
+       ctrl_outb(1 << (7 - irq2intreq(irq)), INTMSKCLR0);
+}
+
+static void
+mask_and_ack_intreq_irq(unsigned int irq)
+{
+       disable_intreq_irq(irq);
+}
+
+static unsigned int
+startup_intreq_irq(unsigned int irq)
+{
+       enable_intreq_irq(irq);
+       return 0;
+}
+
+static void
+shutdown_intreq_irq(unsigned int irq)
+{
+       disable_intreq_irq(irq);
+}
+
+static void
+end_intreq_irq(unsigned int irq)
+{
+       if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
+               enable_intreq_irq(irq);
+}
+
+static struct hw_interrupt_type intreq_irq_type = {
+       .typename = "intreq",
+       .startup = startup_intreq_irq,
+       .shutdown = shutdown_intreq_irq,
+       .enable = enable_intreq_irq,
+       .disable = disable_intreq_irq,
+       .ack = mask_and_ack_intreq_irq,
+       .end = end_intreq_irq
+};
+
+void
+make_intreq_irq(unsigned int irq)
+{
+       disable_irq_nosync(irq);
+       irq_desc[irq].handler = &intreq_irq_type;
+       disable_intreq_irq(irq);
+}
+
+int
+shmse_irq_demux(int irq)
+{
+       if (irq == IRQ5_IRQ)
+               return 10;
+       return irq;
+}
+
+/*
+ * Initialize IRQ setting
+ */
+void __init
+init_73180se_IRQ(void)
+{
+       make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY);
+
+       ctrl_outw(0x2000, 0xb03fffec);  /* mrshpc irq enable */
+       ctrl_outw(0x2000, 0xb07fffec);  /* mrshpc irq enable */
+       ctrl_outl(3 << ((7 - 5) * 4), INTC_INTPRI0);    /* irq5 pri=3 */
+       ctrl_outw(2 << ((7 - 5) * 2), INTC_ICR1);       /* low-level irq */
+       make_intreq_irq(10);
+
+       make_ipr_irq(VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8);
+
+       ctrl_outb(0x0f, INTC_IMCR5);    /* enable SCIF IRQ */
+
+       make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
+       make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
+       make_ipr_irq(DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY);
+       make_ipr_irq(IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY);
+       make_ipr_irq(IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS,
+                    IIC0_PRIORITY);
+       make_ipr_irq(IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS,
+                    IIC0_PRIORITY);
+       make_ipr_irq(IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY);
+       make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY);
+       make_ipr_irq(SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY);
+
+       /* VIO interrupt */
+       make_ipr_irq(CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
+       make_ipr_irq(BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
+       make_ipr_irq(VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
+
+       make_ipr_irq(LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY);
+       ctrl_outw(0x2000, PA_MRSHPC + 0x0c);    /* mrshpc irq enable */
+}