summaryrefslogtreecommitdiff
path: root/arch/sh/boards/se/7206/irq.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/boards/se/7206/irq.c')
-rw-r--r--arch/sh/boards/se/7206/irq.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/sh/boards/se/7206/irq.c b/arch/sh/boards/se/7206/irq.c
deleted file mode 100644
index 9d5bfc77d0de..000000000000
--- a/arch/sh/boards/se/7206/irq.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * linux/arch/sh/boards/se/7206/irq.c
- *
- * Copyright (C) 2005,2006 Yoshinori Sato
- *
- * Hitachi SolutionEngine Support.
- *
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <asm/se7206.h>
-
-#define INTSTS0 0x31800000
-#define INTSTS1 0x31800002
-#define INTMSK0 0x31800004
-#define INTMSK1 0x31800006
-#define INTSEL 0x31800008
-
-#define IRQ0_IRQ 64
-#define IRQ1_IRQ 65
-#define IRQ3_IRQ 67
-
-#define INTC_IPR01 0xfffe0818
-#define INTC_ICR1 0xfffe0802
-
-static void disable_se7206_irq(unsigned int irq)
-{
- unsigned short val;
- unsigned short mask = 0xffff ^ (0x0f << 4 * (3 - (IRQ0_IRQ - irq)));
- unsigned short msk0,msk1;
-
- /* Set the priority in IPR to 0 */
- val = ctrl_inw(INTC_IPR01);
- val &= mask;
- ctrl_outw(val, INTC_IPR01);
- /* FPGA mask set */
- msk0 = ctrl_inw(INTMSK0);
- msk1 = ctrl_inw(INTMSK1);
-
- switch (irq) {
- case IRQ0_IRQ:
- msk0 |= 0x0010;
- break;
- case IRQ1_IRQ:
- msk0 |= 0x000f;
- break;
- case IRQ3_IRQ:
- msk0 |= 0x0f00;
- msk1 |= 0x00ff;
- break;
- }
- ctrl_outw(msk0, INTMSK0);
- ctrl_outw(msk1, INTMSK1);
-}
-
-static void enable_se7206_irq(unsigned int irq)
-{
- unsigned short val;
- unsigned short value = (0x0001 << 4 * (3 - (IRQ0_IRQ - irq)));
- unsigned short msk0,msk1;
-
- /* Set priority in IPR back to original value */
- val = ctrl_inw(INTC_IPR01);
- val |= value;
- ctrl_outw(val, INTC_IPR01);
-
- /* FPGA mask reset */
- msk0 = ctrl_inw(INTMSK0);
- msk1 = ctrl_inw(INTMSK1);
-
- switch (irq) {
- case IRQ0_IRQ:
- msk0 &= ~0x0010;
- break;
- case IRQ1_IRQ:
- msk0 &= ~0x000f;
- break;
- case IRQ3_IRQ:
- msk0 &= ~0x0f00;
- msk1 &= ~0x00ff;
- break;
- }
- ctrl_outw(msk0, INTMSK0);
- ctrl_outw(msk1, INTMSK1);
-}
-
-static void eoi_se7206_irq(unsigned int irq)
-{
- unsigned short sts0,sts1;
-
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_se7206_irq(irq);
- /* FPGA isr clear */
- sts0 = ctrl_inw(INTSTS0);
- sts1 = ctrl_inw(INTSTS1);
-
- switch (irq) {
- case IRQ0_IRQ:
- sts0 &= ~0x0010;
- break;
- case IRQ1_IRQ:
- sts0 &= ~0x000f;
- break;
- case IRQ3_IRQ:
- sts0 &= ~0x0f00;
- sts1 &= ~0x00ff;
- break;
- }
- ctrl_outw(sts0, INTSTS0);
- ctrl_outw(sts1, INTSTS1);
-}
-
-static struct irq_chip se7206_irq_chip __read_mostly = {
- .name = "SE7206-FPGA",
- .mask = disable_se7206_irq,
- .unmask = enable_se7206_irq,
- .mask_ack = disable_se7206_irq,
- .eoi = eoi_se7206_irq,
-};
-
-static void make_se7206_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- set_irq_chip_and_handler_name(irq, &se7206_irq_chip,
- handle_level_irq, "level");
- disable_se7206_irq(irq);
-}
-
-/*
- * Initialize IRQ setting
- */
-void __init init_se7206_IRQ(void)
-{
- make_se7206_irq(IRQ0_IRQ); /* SMC91C111 */
- make_se7206_irq(IRQ1_IRQ); /* ATA */
- make_se7206_irq(IRQ3_IRQ); /* SLOT / PCM */
- ctrl_outw(inw(INTC_ICR1) | 0x000b ,INTC_ICR1 ) ; /* ICR1 */
-
- /* FPGA System register setup*/
- ctrl_outw(0x0000,INTSTS0); /* Clear INTSTS0 */
- ctrl_outw(0x0000,INTSTS1); /* Clear INTSTS1 */
- /* IRQ0=LAN, IRQ1=ATA, IRQ3=SLT,PCM */
- ctrl_outw(0x0001,INTSEL);
-}