forked from Minki/linux
49316cbf0a
They tend to get not updated when files are moved around or copied and lack any obvious use. While at it zap some only too obvious comments and as per Shinya's suggestion, add a copyright header to extable.c. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/*
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* Based on linux/arch/mips/txx9/rbtx4939/setup.c,
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* and RBTX49xx patch from CELF patch archive.
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*
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* Copyright 2001, 2003-2005 MontaVista Software Inc.
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* Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
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* (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/kernel.h>
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#include <linux/interrupt.h>
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#include <asm/txx9/generic.h>
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#include <asm/txx9/tx4939.h>
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int __init tx4939_report_pciclk(void)
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{
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int pciclk = 0;
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pr_info("PCIC --%s PCICLK:",
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(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66) ?
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" PCI66" : "");
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if (__raw_readq(&tx4939_ccfgptr->pcfg) & TX4939_PCFG_PCICLKEN_ALL) {
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pciclk = txx9_master_clock * 20 / 6;
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if (!(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66))
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pciclk /= 2;
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printk(KERN_CONT "Internal(%u.%uMHz)",
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(pciclk + 50000) / 1000000,
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((pciclk + 50000) / 100000) % 10);
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} else {
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printk(KERN_CONT "External");
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pciclk = -1;
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}
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printk(KERN_CONT "\n");
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return pciclk;
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}
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void __init tx4939_report_pci1clk(void)
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{
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unsigned int pciclk = txx9_master_clock * 20 / 6;
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pr_info("PCIC1 -- PCICLK:%u.%uMHz\n",
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(pciclk + 50000) / 1000000,
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((pciclk + 50000) / 100000) % 10);
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}
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int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
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{
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if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4939_pcic1ptr) {
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switch (slot) {
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case TX4927_PCIC_IDSEL_AD_TO_SLOT(31):
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if (__raw_readq(&tx4939_ccfgptr->pcfg) &
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TX4939_PCFG_ET0MODE)
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return TXX9_IRQ_BASE + TX4939_IR_ETH(0);
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break;
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case TX4927_PCIC_IDSEL_AD_TO_SLOT(30):
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if (__raw_readq(&tx4939_ccfgptr->pcfg) &
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TX4939_PCFG_ET1MODE)
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return TXX9_IRQ_BASE + TX4939_IR_ETH(1);
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break;
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}
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return 0;
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}
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return -1;
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}
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int __init tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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int irq = tx4939_pcic1_map_irq(dev, slot);
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if (irq >= 0)
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return irq;
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irq = pin;
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/* IRQ rotation */
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irq--; /* 0-3 */
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irq = (irq + 33 - slot) % 4;
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irq++; /* 1-4 */
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switch (irq) {
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case 1:
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irq = TXX9_IRQ_BASE + TX4939_IR_INTA;
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break;
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case 2:
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irq = TXX9_IRQ_BASE + TX4939_IR_INTB;
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break;
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case 3:
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irq = TXX9_IRQ_BASE + TX4939_IR_INTC;
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break;
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case 4:
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irq = TXX9_IRQ_BASE + TX4939_IR_INTD;
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break;
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}
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return irq;
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}
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void __init tx4939_setup_pcierr_irq(void)
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{
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if (request_irq(TXX9_IRQ_BASE + TX4939_IR_PCIERR,
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tx4927_pcierr_interrupt,
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IRQF_DISABLED, "PCI error",
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(void *)TX4939_PCIC_REG))
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pr_warning("Failed to request irq for PCIERR\n");
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}
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