88 lines
1.5 KiB
C
88 lines
1.5 KiB
C
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/*
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* arch/sh/boards/mb374/setup.c
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*
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* Copyright (C) 2001 Stuart Menefy (stuart.menefy@st.com)
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* STMicroelectronics ST40RA/ST40STB1 Starter support.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/pci.h>
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#include <asm/io.h>
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#include <mach/epld.h>
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#include "../../../drivers/pci/pci-st40.h"
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/*
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* Initialize the board
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*/
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void __init mb374_setup(char **cmdline_p)
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{
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unsigned char version;
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version = ctrl_inl(EPLD_REVID) & 0xff;
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printk("STMicroelectronics ST40 Starter initialisation\n");
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printk("EPLD version: %d.%02d\n",(version >> 4) & 0xf, version & 0xf);
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/* Currently all STB1 chips have problems with the sleep instruction,
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* so disable it here.
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*/
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disable_hlt();
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}
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#ifdef CONFIG_PCI
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int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
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{
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int irq=-1;
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pr_debug("%s: slot %d, pin %d\n", __FUNCTION__, slot, pin);
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switch(slot) {
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case 1:
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irq=0;
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break;
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case 2:
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irq=3;
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break;
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case 3:
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irq=1;
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break;
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case 4:
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irq=2;
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break;
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}
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/* Are we asking for a known slot ? */
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if(irq==-1) return -1;
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if(pin==1) return irq;
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/* if INTB/C/D h then this can only come from the PCI add in slot */
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if(slot!=1) return -1;
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/* An INTB,INTC,INTD - these are commoned up */
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switch(pin) {
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case 2:
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irq=4;
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break;
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case 3:
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irq=5;
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break;
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case 4:
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irq=7;
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break;
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default:
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irq=-1;
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break;
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}
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return irq;
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}
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#endif
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