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1275 |
phoenix |
/*
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* Copyright (C) 2001, 2002, 2003 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* Derived loosely from ide-pmac.c, so:
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*
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* Copyright (C) 1998 Paul Mackerras.
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* Copyright (C) 1995-1998 Mark Lord
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*/
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#include <linux/kernel.h>
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#include <linux/ide.h>
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#include <asm/sibyte/board.h>
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#define SIBYTE_IDE_BASE (IO_SPACE_BASE + IDE_PHYS - mips_io_port_base)
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#define SIBYTE_IDE_REG(pcaddr) (SIBYTE_IDE_BASE + ((pcaddr) << 5))
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extern void sibyte_set_ideops(ide_hwif_t *hwif);
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void __init sibyte_ide_probe(void)
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{
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int i;
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ide_hwif_t *hwif = NULL;
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/*
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* Find the first untaken slot in hwifs. Also set the io ops
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* to the non-swapping SiByte versions. XXXKW It would be
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* nice to find a safe place to do this outside of
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* ide-sibyte.c so PCI-IDE would work without the SiByte
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* driver.
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*/
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for (i = 0; i < MAX_HWIFS; i++) {
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sibyte_set_ideops(&ide_hwifs[i]);
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if (!ide_hwifs[i].io_ports[IDE_DATA_OFFSET] && (hwif == NULL)) {
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hwif = &ide_hwifs[i];
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}
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}
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if (hwif == NULL) {
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printk("No space for SiByte onboard IDE driver in ide_hwifs[]. Not enabled.\n");
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return;
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}
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/*
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* Set up our stuff; we're a little odd because our io_ports
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* aren't in the usual place, and byte-swapping isn't
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* necessary.
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*/
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hwif->hw.io_ports[IDE_DATA_OFFSET] = SIBYTE_IDE_REG(0x1f0);
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hwif->hw.io_ports[IDE_ERROR_OFFSET] = SIBYTE_IDE_REG(0x1f1);
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hwif->hw.io_ports[IDE_NSECTOR_OFFSET] = SIBYTE_IDE_REG(0x1f2);
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hwif->hw.io_ports[IDE_SECTOR_OFFSET] = SIBYTE_IDE_REG(0x1f3);
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hwif->hw.io_ports[IDE_LCYL_OFFSET] = SIBYTE_IDE_REG(0x1f4);
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hwif->hw.io_ports[IDE_HCYL_OFFSET] = SIBYTE_IDE_REG(0x1f5);
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hwif->hw.io_ports[IDE_SELECT_OFFSET] = SIBYTE_IDE_REG(0x1f6);
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hwif->hw.io_ports[IDE_STATUS_OFFSET] = SIBYTE_IDE_REG(0x1f7);
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hwif->hw.io_ports[IDE_CONTROL_OFFSET] = SIBYTE_IDE_REG(0x3f6);
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hwif->hw.irq = K_INT_GB_IDE;
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hwif->irq = hwif->hw.irq;
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hwif->noprobe = 0;
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hwif->hw.ack_intr = NULL;
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hwif->mmio = 2;
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memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
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printk(KERN_INFO "SiByte onboard IDE configured as device %i\n", hwif-ide_hwifs);
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}
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