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/*
* arch/sh/stboard/setup.c
*
* Copyright (C) 2001 Stuart Menefy (stuart.menefy@st.com)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* STMicroelectronics ST40STB1 HARP and compatible support.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/harp/harp.h>
const char *get_system_type(void)
{
return "STB1 Harp";
}
/*
* Initialize the board
*/
int __init platform_setup(void)
{
#ifdef CONFIG_SH_STB1_HARP
unsigned long ic8_version, ic36_version;
ic8_version = ctrl_inl(EPLD_REVID2);
ic36_version = ctrl_inl(EPLD_REVID1);
printk("STMicroelectronics STB1 HARP initialisaton\n");
printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n",
(ic8_version >> 4) & 0xf, ic8_version & 0xf,
(ic36_version >> 4) & 0xf, ic36_version & 0xf);
#elif defined(CONFIG_SH_STB1_OVERDRIVE)
unsigned long version;
version = ctrl_inl(EPLD_REVID);
printk("STMicroelectronics STB1 Overdrive initialisaton\n");
printk("EPLD version: %d.%02d\n",
(version >> 4) & 0xf, version & 0xf);
#else
#error Undefined machine
#endif
/* Currently all STB1 chips have problems with the sleep instruction,
* so disable it here.
*/
disable_hlt();
return 0;
}
/*
* pcibios_map_platform_irq
*
* This is board specific and returns the IRQ for a given PCI device.
* It is used by the PCI code (arch/sh/kernel/st40_pci*)
*
*/
#define HARP_PCI_IRQ 1
#define HARP_BRIDGE_IRQ 2
#define OVERDRIVE_SLOT0_IRQ 0
int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
switch (slot) {
#ifdef CONFIG_SH_STB1_HARP
case 2: /*This is the PCI slot on the */
return HARP_PCI_IRQ;
case 1: /* this is the bridge */
return HARP_BRIDGE_IRQ;
#elif defined(CONFIG_SH_STB1_OVERDRIVE)
case 1:
case 2:
case 3:
return slot - 1;
#else
#error Unknown board
#endif
default:
return -1;
}
}
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