summaryrefslogtreecommitdiff
path: root/arch/mips/ddb5xxx/ddb5074/nile4_pic.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/ddb5xxx/ddb5074/nile4_pic.c')
-rw-r--r--arch/mips/ddb5xxx/ddb5074/nile4_pic.c286
1 files changed, 0 insertions, 286 deletions
diff --git a/arch/mips/ddb5xxx/ddb5074/nile4_pic.c b/arch/mips/ddb5xxx/ddb5074/nile4_pic.c
deleted file mode 100644
index 8743ffce8653..000000000000
--- a/arch/mips/ddb5xxx/ddb5074/nile4_pic.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- * arch/mips/ddb5476/nile4.c --
- * low-level PIC code for NEC Vrc-5476 (Nile 4)
- *
- * Copyright (C) 2000 Geert Uytterhoeven <geert@sonycom.com>
- * Sony Software Development Center Europe (SDCE), Brussels
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- *
- */
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-
-#include <asm/addrspace.h>
-
-#include <asm/ddb5xxx/ddb5xxx.h>
-
-static int irq_base;
-
-/*
- * Interrupt Programming
- */
-void nile4_map_irq(int nile4_irq, int cpu_irq)
-{
- u32 offset, t;
-
- offset = DDB_INTCTRL;
- if (nile4_irq >= 8) {
- offset += 4;
- nile4_irq -= 8;
- }
- t = ddb_in32(offset);
- t &= ~(7 << (nile4_irq * 4));
- t |= cpu_irq << (nile4_irq * 4);
- ddb_out32(offset, t);
-}
-
-void nile4_map_irq_all(int cpu_irq)
-{
- u32 all, t;
-
- all = cpu_irq;
- all |= all << 4;
- all |= all << 8;
- all |= all << 16;
- t = ddb_in32(DDB_INTCTRL);
- t &= 0x88888888;
- t |= all;
- ddb_out32(DDB_INTCTRL, t);
- t = ddb_in32(DDB_INTCTRL + 4);
- t &= 0x88888888;
- t |= all;
- ddb_out32(DDB_INTCTRL + 4, t);
-}
-
-void nile4_enable_irq(unsigned int nile4_irq)
-{
- u32 offset, t;
-
- nile4_irq-=irq_base;
-
- ddb5074_led_hex(8);
-
- offset = DDB_INTCTRL;
- if (nile4_irq >= 8) {
- offset += 4;
- nile4_irq -= 8;
- }
- ddb5074_led_hex(9);
- t = ddb_in32(offset);
- ddb5074_led_hex(0xa);
- t |= 8 << (nile4_irq * 4);
- ddb_out32(offset, t);
- ddb5074_led_hex(0xb);
-}
-
-void nile4_disable_irq(unsigned int nile4_irq)
-{
- u32 offset, t;
-
- nile4_irq-=irq_base;
-
- offset = DDB_INTCTRL;
- if (nile4_irq >= 8) {
- offset += 4;
- nile4_irq -= 8;
- }
- t = ddb_in32(offset);
- t &= ~(8 << (nile4_irq * 4));
- ddb_out32(offset, t);
-}
-
-void nile4_disable_irq_all(void)
-{
- ddb_out32(DDB_INTCTRL, 0);
- ddb_out32(DDB_INTCTRL + 4, 0);
-}
-
-u16 nile4_get_irq_stat(int cpu_irq)
-{
- return ddb_in16(DDB_INTSTAT0 + cpu_irq * 2);
-}
-
-void nile4_enable_irq_output(int cpu_irq)
-{
- u32 t;
-
- t = ddb_in32(DDB_INTSTAT1 + 4);
- t |= 1 << (16 + cpu_irq);
- ddb_out32(DDB_INTSTAT1, t);
-}
-
-void nile4_disable_irq_output(int cpu_irq)
-{
- u32 t;
-
- t = ddb_in32(DDB_INTSTAT1 + 4);
- t &= ~(1 << (16 + cpu_irq));
- ddb_out32(DDB_INTSTAT1, t);
-}
-
-void nile4_set_pci_irq_polarity(int pci_irq, int high)
-{
- u32 t;
-
- t = ddb_in32(DDB_INTPPES);
- if (high)
- t &= ~(1 << (pci_irq * 2));
- else
- t |= 1 << (pci_irq * 2);
- ddb_out32(DDB_INTPPES, t);
-}
-
-void nile4_set_pci_irq_level_or_edge(int pci_irq, int level)
-{
- u32 t;
-
- t = ddb_in32(DDB_INTPPES);
- if (level)
- t |= 2 << (pci_irq * 2);
- else
- t &= ~(2 << (pci_irq * 2));
- ddb_out32(DDB_INTPPES, t);
-}
-
-void nile4_clear_irq(int nile4_irq)
-{
- nile4_irq-=irq_base;
- ddb_out32(DDB_INTCLR, 1 << nile4_irq);
-}
-
-void nile4_clear_irq_mask(u32 mask)
-{
- ddb_out32(DDB_INTCLR, mask);
-}
-
-u8 nile4_i8259_iack(void)
-{
- u8 irq;
- u32 reg;
-
- /* Set window 0 for interrupt acknowledge */
- reg = ddb_in32(DDB_PCIINIT0);
-
- ddb_set_pmr(DDB_PCIINIT0, DDB_PCICMD_IACK, 0, DDB_PCI_ACCESS_32);
- irq = *(volatile u8 *) KSEG1ADDR(DDB_PCI_IACK_BASE);
- /* restore window 0 for PCI I/O space */
- // ddb_set_pmr(DDB_PCIINIT0, DDB_PCICMD_IO, 0, DDB_PCI_ACCESS_32);
- ddb_out32(DDB_PCIINIT0, reg);
-
- /* i8269.c set the base vector to be 0x0 */
- return irq ;
-}
-
-static unsigned int nile4_irq_startup(unsigned int irq) {
-
- nile4_enable_irq(irq);
- return 0;
-
-}
-
-static void nile4_ack_irq(unsigned int irq) {
-
- ddb5074_led_hex(4);
-
- nile4_clear_irq(irq);
- ddb5074_led_hex(2);
- nile4_disable_irq(irq);
-
- ddb5074_led_hex(0);
-}
-
-static void nile4_irq_end(unsigned int irq) {
-
- ddb5074_led_hex(3);
- if(!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
- ddb5074_led_hex(5);
- nile4_enable_irq(irq);
- ddb5074_led_hex(7);
- }
-
- ddb5074_led_hex(1);
-}
-
-#define nile4_irq_shutdown nile4_disable_irq
-
-static hw_irq_controller nile4_irq_controller = {
- .typename = "nile4",
- .startup = nile4_irq_startup,
- .shutdown = nile4_irq_shutdown,
- .enable = nile4_enable_irq,
- .disable = nile4_disable_irq,
- .ack = nile4_ack_irq,
- .end = nile4_irq_end,
-};
-
-void nile4_irq_setup(u32 base) {
-
- int i;
-
- irq_base=base;
-
- /* Map all interrupts to CPU int #0 */
- nile4_map_irq_all(0);
-
- /* PCI INTA#-E# must be level triggered */
- nile4_set_pci_irq_level_or_edge(0, 1);
- nile4_set_pci_irq_level_or_edge(1, 1);
- nile4_set_pci_irq_level_or_edge(2, 1);
- nile4_set_pci_irq_level_or_edge(3, 1);
- nile4_set_pci_irq_level_or_edge(4, 1);
-
- /* PCI INTA#-D# must be active low, INTE# must be active high */
- nile4_set_pci_irq_polarity(0, 0);
- nile4_set_pci_irq_polarity(1, 0);
- nile4_set_pci_irq_polarity(2, 0);
- nile4_set_pci_irq_polarity(3, 0);
- nile4_set_pci_irq_polarity(4, 1);
-
-
- for (i = 0; i < 16; i++) {
- nile4_clear_irq(i);
- nile4_disable_irq(i);
- }
-
- /* Enable CPU int #0 */
- nile4_enable_irq_output(0);
-
- for (i= base; i< base + NUM_NILE4_INTERRUPTS; i++) {
- irq_desc[i].status = IRQ_DISABLED;
- irq_desc[i].action = NULL;
- irq_desc[i].depth = 1;
- irq_desc[i].handler = &nile4_irq_controller;
- }
-}
-
-#if defined(CONFIG_RUNTIME_DEBUG)
-void nile4_dump_irq_status(void)
-{
- printk(KERN_DEBUG "
- CPUSTAT = %p:%p\n", (void *) ddb_in32(DDB_CPUSTAT + 4),
- (void *) ddb_in32(DDB_CPUSTAT));
- printk(KERN_DEBUG "
- INTCTRL = %p:%p\n", (void *) ddb_in32(DDB_INTCTRL + 4),
- (void *) ddb_in32(DDB_INTCTRL));
- printk(KERN_DEBUG
- "INTSTAT0 = %p:%p\n",
- (void *) ddb_in32(DDB_INTSTAT0 + 4),
- (void *) ddb_in32(DDB_INTSTAT0));
- printk(KERN_DEBUG
- "INTSTAT1 = %p:%p\n",
- (void *) ddb_in32(DDB_INTSTAT1 + 4),
- (void *) ddb_in32(DDB_INTSTAT1));
- printk(KERN_DEBUG
- "INTCLR = %p:%p\n", (void *) ddb_in32(DDB_INTCLR + 4),
- (void *) ddb_in32(DDB_INTCLR));
- printk(KERN_DEBUG
- "INTPPES = %p:%p\n", (void *) ddb_in32(DDB_INTPPES + 4),
- (void *) ddb_in32(DDB_INTPPES));
-}
-
-#endif
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 17:18:03 +0300