91 lines
2.0 KiB
C
91 lines
2.0 KiB
C
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/*
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* arch/sh/stboard/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 ST40STB1 HARP and compatible 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 <asm/io.h>
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#include <asm/harp/harp.h>
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const char *get_system_type(void)
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{
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return "STB1 Harp";
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}
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/*
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* Initialize the board
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*/
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int __init platform_setup(void)
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{
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#ifdef CONFIG_SH_STB1_HARP
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unsigned long ic8_version, ic36_version;
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ic8_version = ctrl_inl(EPLD_REVID2);
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ic36_version = ctrl_inl(EPLD_REVID1);
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printk("STMicroelectronics STB1 HARP initialisaton\n");
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printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n",
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(ic8_version >> 4) & 0xf, ic8_version & 0xf,
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(ic36_version >> 4) & 0xf, ic36_version & 0xf);
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#elif defined(CONFIG_SH_STB1_OVERDRIVE)
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unsigned long version;
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version = ctrl_inl(EPLD_REVID);
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printk("STMicroelectronics STB1 Overdrive initialisaton\n");
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printk("EPLD version: %d.%02d\n",
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(version >> 4) & 0xf, version & 0xf);
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#else
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#error Undefined machine
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#endif
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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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return 0;
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}
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/*
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* pcibios_map_platform_irq
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*
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* This is board specific and returns the IRQ for a given PCI device.
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* It is used by the PCI code (arch/sh/kernel/st40_pci*)
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*
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*/
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#define HARP_PCI_IRQ 1
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#define HARP_BRIDGE_IRQ 2
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#define OVERDRIVE_SLOT0_IRQ 0
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int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
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{
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switch (slot) {
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#ifdef CONFIG_SH_STB1_HARP
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case 2: /*This is the PCI slot on the */
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return HARP_PCI_IRQ;
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case 1: /* this is the bridge */
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return HARP_BRIDGE_IRQ;
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#elif defined(CONFIG_SH_STB1_OVERDRIVE)
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case 1:
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case 2:
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case 3:
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return slot - 1;
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#else
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#error Unknown board
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#endif
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default:
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return -1;
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}
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}
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