mirror of
https://github.com/AsahiLinux/u-boot
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2b22460956
This patch adds support for the esd CPCI-HD/2 board to u-boot for CPCI-CPU/750. As the primary devices on the CPCI-HD/2 board are connected to device 1 and 3, the device must be swapped. Signed-off-by: Reinhard Arlt <reinhard.arlt@esd.eu>
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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 as
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* published by the Free Software Foundation; either version 2 of
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* 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,
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* MA 02111-1307 USA
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*
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*/
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/* ide.c - ide support functions */
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#include <common.h>
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#if defined(CONFIG_CMD_IDE)
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#include <ata.h>
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#include <ide.h>
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#include <pci.h>
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extern ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS];
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int cpci_hd_type;
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int ata_device(int dev)
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{
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int retval;
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retval = (dev & 1) << 4;
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if (cpci_hd_type == 2)
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retval ^= 1 << 4;
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return retval;
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}
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int ide_preinit (void)
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{
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int status;
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pci_dev_t devbusfn;
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int l;
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status = 1;
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cpci_hd_type = 0;
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if (CPCI750_SLAVE_TEST != 0)
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return status;
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for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) {
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ide_bus_offset[l] = -ATA_STATUS;
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}
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devbusfn = pci_find_device (0x1103, 0x0004, 0);
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if (devbusfn != -1) {
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cpci_hd_type = 1;
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} else {
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devbusfn = pci_find_device (0x1095, 0x3114, 0);
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if (devbusfn != -1) {
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cpci_hd_type = 2;
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}
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}
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if (devbusfn != -1) {
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ulong *ide_bus_offset_ptr;
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status = 0;
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ide_bus_offset_ptr = &ide_bus_offset[0];
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pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
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(u32 *)ide_bus_offset_ptr);
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ide_bus_offset[0] &= 0xfffffffe;
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ide_bus_offset[0] += CONFIG_SYS_PCI0_IO_SPACE;
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ide_bus_offset_ptr = &ide_bus_offset[1];
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pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2,
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(u32 *)ide_bus_offset_ptr);
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ide_bus_offset[1] &= 0xfffffffe;
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ide_bus_offset[1] += CONFIG_SYS_PCI0_IO_SPACE;
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}
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return status;
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}
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void ide_set_reset (int flag) {
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return;
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}
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#endif /* of CONFIG_CMDS_IDE */
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