patch-2.4.19 linux-2.4.19/arch/mips/ddb5476/nile4.c

• Lines: 294
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.18/arch/mips/ddb5476/nile4.c
• Orig date: Fri Apr 13 20:26:07 2001

diff -urN linux-2.4.18/arch/mips/ddb5476/nile4.c linux-2.4.19/arch/mips/ddb5476/nile4.c
@@ -1,293 +0,0 @@
-/*
- *  arch/mips/ddb5074/nile4.c -- NEC Vrc-5074 Nile 4 support routines
- *
- *  Copyright (C) 2000 Geert Uytterhoeven <geert@sonycom.com>
- *                     Sony Software Development Center Europe (SDCE), Brussels
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-#include <asm/nile4.h>
-
-
-/*
- *  Physical Device Address Registers
- *
- *  Note: 32 bit addressing only!
- */
-void nile4_set_pdar(u32 pdar, u32 phys, u32 size, int width,
-		    int on_memory_bus, int visible)
-{
-	u32 maskbits;
-	u32 widthbits;
-
-	if (pdar > NILE4_BOOTCS || (pdar & 7)) {
-		printk("nile4_set_pdar: invalid pdar %d\n", pdar);
-		return;
-	}
-	if (pdar == NILE4_INTCS && size != 0x00200000) {
-		printk("nile4_set_pdar: INTCS size must be 2 MB\n");
-		return;
-	}
-	switch (size) {
-#if 0				/* We don't support 4 GB yet */
-	case 0x100000000:	/* 4 GB */
-		maskbits = 4;
-		break;
-#endif
-	case 0x80000000:	/* 2 GB */
-		maskbits = 5;
-		break;
-	case 0x40000000:	/* 1 GB */
-		maskbits = 6;
-		break;
-	case 0x20000000:	/* 512 MB */
-		maskbits = 7;
-		break;
-	case 0x10000000:	/* 256 MB */
-		maskbits = 8;
-		break;
-	case 0x08000000:	/* 128 MB */
-		maskbits = 9;
-		break;
-	case 0x04000000:	/* 64 MB */
-		maskbits = 10;
-		break;
-	case 0x02000000:	/* 32 MB */
-		maskbits = 11;
-		break;
-	case 0x01000000:	/* 16 MB */
-		maskbits = 12;
-		break;
-	case 0x00800000:	/* 8 MB */
-		maskbits = 13;
-		break;
-	case 0x00400000:	/* 4 MB */
-		maskbits = 14;
-		break;
-	case 0x00200000:	/* 2 MB */
-		maskbits = 15;
-		break;
-	case 0:		/* OFF */
-		maskbits = 0;
-		break;
-	default:
-		printk("nile4_set_pdar: unsupported size %p\n",
-		       (void *) size);
-		return;
-	}
-	switch (width) {
-	case 8:
-		widthbits = 0;
-		break;
-	case 16:
-		widthbits = 1;
-		break;
-	case 32:
-		widthbits = 2;
-		break;
-	case 64:
-		widthbits = 3;
-		break;
-	default:
-		printk("nile4_set_pdar: unsupported width %d\n", width);
-		return;
-	}
-	nile4_out32(pdar, maskbits | (on_memory_bus ? 0x10 : 0) |
-		    (visible ? 0x20 : 0) | (widthbits << 6) |
-		    (phys & 0xffe00000));
-	nile4_out32(pdar + 4, 0);
-	/*
-	 * When programming a PDAR, the register should be read immediately
-	 * after writing it. This ensures that address decoders are properly
-	 * configured.
-	 */
-	nile4_in32(pdar);
-	nile4_in32(pdar + 4);
-}
-
-
-/*
- *  PCI Master Registers
- *
- *  Note: 32 bit addressing only!
- */
-void nile4_set_pmr(u32 pmr, u32 type, u32 addr)
-{
-	if (pmr != NILE4_PCIINIT0 && pmr != NILE4_PCIINIT1) {
-		printk("nile4_set_pmr: invalid pmr %d\n", pmr);
-		return;
-	}
-	switch (type) {
-	case NILE4_PCICMD_IACK:	/* PCI Interrupt Acknowledge */
-	case NILE4_PCICMD_IO:	/* PCI I/O Space */
-	case NILE4_PCICMD_MEM:	/* PCI Memory Space */
-	case NILE4_PCICMD_CFG:	/* PCI Configuration Space */
-		break;
-	default:
-		printk("nile4_set_pmr: invalid type %d\n", type);
-		return;
-	}
-	nile4_out32(pmr, (type << 1) | 0x10 | (addr & 0xffe00000));
-	nile4_out32(pmr + 4, 0);
-}
-
-
-/*
- *  Interrupt Programming
- */
-void nile4_map_irq(int nile4_irq, int cpu_irq)
-{
-	u32 offset, t;
-
-	offset = NILE4_INTCTRL;
-	if (nile4_irq >= 8) {
-		offset += 4;
-		nile4_irq -= 8;
-	}
-	t = nile4_in32(offset);
-	t &= ~(7 << (nile4_irq * 4));
-	t |= cpu_irq << (nile4_irq * 4);
-	nile4_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 = nile4_in32(NILE4_INTCTRL);
-	t &= 0x88888888;
-	t |= all;
-	nile4_out32(NILE4_INTCTRL, t);
-	t = nile4_in32(NILE4_INTCTRL + 4);
-	t &= 0x88888888;
-	t |= all;
-	nile4_out32(NILE4_INTCTRL + 4, t);
-}
-
-void nile4_enable_irq(int nile4_irq)
-{
-	u32 offset, t;
-
-	offset = NILE4_INTCTRL;
-	if (nile4_irq >= 8) {
-		offset += 4;
-		nile4_irq -= 8;
-	}
-	t = nile4_in32(offset);
-	t |= 8 << (nile4_irq * 4);
-	nile4_out32(offset, t);
-}
-
-void nile4_disable_irq(int nile4_irq)
-{
-	u32 offset, t;
-
-	offset = NILE4_INTCTRL;
-	if (nile4_irq >= 8) {
-		offset += 4;
-		nile4_irq -= 8;
-	}
-	t = nile4_in32(offset);
-	t &= ~(8 << (nile4_irq * 4));
-	nile4_out32(offset, t);
-}
-
-void nile4_disable_irq_all(void)
-{
-	nile4_out32(NILE4_INTCTRL, 0);
-	nile4_out32(NILE4_INTCTRL + 4, 0);
-}
-
-u16 nile4_get_irq_stat(int cpu_irq)
-{
-	return nile4_in16(NILE4_INTSTAT0 + cpu_irq * 2);
-}
-
-void nile4_enable_irq_output(int cpu_irq)
-{
-	u32 t;
-
-	t = nile4_in32(NILE4_INTSTAT1 + 4);
-	t |= 1 << (16 + cpu_irq);
-	nile4_out32(NILE4_INTSTAT1, t);
-}
-
-void nile4_disable_irq_output(int cpu_irq)
-{
-	u32 t;
-
-	t = nile4_in32(NILE4_INTSTAT1 + 4);
-	t &= ~(1 << (16 + cpu_irq));
-	nile4_out32(NILE4_INTSTAT1, t);
-}
-
-void nile4_set_pci_irq_polarity(int pci_irq, int high)
-{
-	u32 t;
-
-	t = nile4_in32(NILE4_INTPPES);
-	if (high)
-		t &= ~(1 << (pci_irq * 2));
-	else
-		t |= 1 << (pci_irq * 2);
-	nile4_out32(NILE4_INTPPES, t);
-}
-
-void nile4_set_pci_irq_level_or_edge(int pci_irq, int level)
-{
-	u32 t;
-
-	t = nile4_in32(NILE4_INTPPES);
-	if (level)
-		t |= 2 << (pci_irq * 2);
-	else
-		t &= ~(2 << (pci_irq * 2));
-	nile4_out32(NILE4_INTPPES, t);
-}
-
-void nile4_clear_irq(int nile4_irq)
-{
-	nile4_out32(NILE4_INTCLR, 1 << nile4_irq);
-}
-
-void nile4_clear_irq_mask(u32 mask)
-{
-	nile4_out32(NILE4_INTCLR, mask);
-}
-
-u8 nile4_i8259_iack(void)
-{
-	u8 irq;
-
-	/* Set window 0 for interrupt acknowledge */
-	nile4_set_pmr(NILE4_PCIINIT0, NILE4_PCICMD_IACK, 0);
-	irq = *(volatile u8 *) NILE4_PCI_IACK_BASE;
-	/* Set window 0 for PCI I/O space */
-	nile4_set_pmr(NILE4_PCIINIT0, NILE4_PCICMD_IO, 0);
-	return irq;
-}
-
-#if 0
-void nile4_dump_irq_status(void)
-{
-	printk("CPUSTAT = %p:%p\n", (void *) nile4_in32(NILE4_CPUSTAT + 4),
-	       (void *) nile4_in32(NILE4_CPUSTAT));
-	printk("INTCTRL = %p:%p\n", (void *) nile4_in32(NILE4_INTCTRL + 4),
-	       (void *) nile4_in32(NILE4_INTCTRL));
-	printk("INTSTAT0 = %p:%p\n",
-	       (void *) nile4_in32(NILE4_INTSTAT0 + 4),
-	       (void *) nile4_in32(NILE4_INTSTAT0));
-	printk("INTSTAT1 = %p:%p\n",
-	       (void *) nile4_in32(NILE4_INTSTAT1 + 4),
-	       (void *) nile4_in32(NILE4_INTSTAT1));
-	printk("INTCLR = %p:%p\n", (void *) nile4_in32(NILE4_INTCLR + 4),
-	       (void *) nile4_in32(NILE4_INTCLR));
-	printk("INTPPES = %p:%p\n", (void *) nile4_in32(NILE4_INTPPES + 4),
-	       (void *) nile4_in32(NILE4_INTPPES));
-}
-#endif