mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 11:18:28 +00:00
111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
|
/*
|
||
|
|
* (C) Copyright 2007
|
||
|
|
* Gary Jennejohn, DENX Software Engineering, garyj@denx.de.
|
||
|
|
*
|
||
|
|
* See file CREDITS for list of people who contributed to this
|
||
|
|
* project.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation; either version 2 of
|
||
|
|
* the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||
|
|
* MA 02111-1307 USA
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/* sil680.c - ide support functions for the Sil0680A controller */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The following parameters must be defined in the configuration file
|
||
|
|
* of the target board:
|
||
|
|
*
|
||
|
|
* #define CFG_IDE_SIL680
|
||
|
|
*
|
||
|
|
* #define CONFIG_PCI_PNP
|
||
|
|
* NOTE it may also be necessary to define this if the default of 8 is
|
||
|
|
* incorrect for the target board (e.g. the sequoia board requires 0).
|
||
|
|
* #define CFG_PCI_CACHE_LINE_SIZE 0
|
||
|
|
*
|
||
|
|
* #define CONFIG_CMD_IDE
|
||
|
|
* #undef CONFIG_IDE_8xx_DIRECT
|
||
|
|
* #undef CONFIG_IDE_LED
|
||
|
|
* #undef CONFIG_IDE_RESET
|
||
|
|
* #define CONFIG_IDE_PREINIT
|
||
|
|
* #define CFG_IDE_MAXBUS 2 - modify to suit
|
||
|
|
* #define CFG_IDE_MAXDEVICE (CFG_IDE_MAXBUS*2) - modify to suit
|
||
|
|
* #define CFG_ATA_BASE_ADDR 0
|
||
|
|
* #define CFG_ATA_IDE0_OFFSET 0
|
||
|
|
* #define CFG_ATA_IDE1_OFFSET 0
|
||
|
|
* #define CFG_ATA_DATA_OFFSET 0
|
||
|
|
* #define CFG_ATA_REG_OFFSET 0
|
||
|
|
* #define CFG_ATA_ALT_OFFSET 0x0004
|
||
|
|
*
|
||
|
|
* The mapping for PCI IO-space.
|
||
|
|
* NOTE this is the value for the sequoia board. Modify to suit.
|
||
|
|
* #define CFG_PCI0_IO_SPACE 0xE8000000
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#if defined(CFG_IDE_SIL680)
|
||
|
|
#include <ata.h>
|
||
|
|
#include <ide.h>
|
||
|
|
#include <pci.h>
|
||
|
|
|
||
|
|
extern ulong ide_bus_offset[CFG_IDE_MAXBUS];
|
||
|
|
|
||
|
|
int ide_preinit (void)
|
||
|
|
{
|
||
|
|
int status;
|
||
|
|
pci_dev_t devbusfn;
|
||
|
|
int l;
|
||
|
|
|
||
|
|
status = 1;
|
||
|
|
for (l = 0; l < CFG_IDE_MAXBUS; l++) {
|
||
|
|
ide_bus_offset[l] = -ATA_STATUS;
|
||
|
|
}
|
||
|
|
devbusfn = pci_find_device (0x1095, 0x0680, 0);
|
||
|
|
if (devbusfn != -1) {
|
||
|
|
status = 0;
|
||
|
|
|
||
|
|
pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
|
||
|
|
(u32 *) &ide_bus_offset[0]);
|
||
|
|
ide_bus_offset[0] &= 0xfffffff8;
|
||
|
|
ide_bus_offset[0] += CFG_PCI0_IO_SPACE;
|
||
|
|
pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2,
|
||
|
|
(u32 *) &ide_bus_offset[1]);
|
||
|
|
ide_bus_offset[1] &= 0xfffffff8;
|
||
|
|
ide_bus_offset[1] += CFG_PCI0_IO_SPACE;
|
||
|
|
/* init various things - taken from the Linux driver */
|
||
|
|
/* set PIO mode */
|
||
|
|
pci_write_config_byte(devbusfn, 0x80, 0x00);
|
||
|
|
pci_write_config_byte(devbusfn, 0x84, 0x00);
|
||
|
|
/* IDE0 */
|
||
|
|
pci_write_config_byte(devbusfn, 0xA1, 0x02);
|
||
|
|
pci_write_config_word(devbusfn, 0xA2, 0x328A);
|
||
|
|
pci_write_config_dword(devbusfn, 0xA4, 0x62DD62DD);
|
||
|
|
pci_write_config_dword(devbusfn, 0xA8, 0x43924392);
|
||
|
|
pci_write_config_dword(devbusfn, 0xAC, 0x40094009);
|
||
|
|
/* IDE1 */
|
||
|
|
pci_write_config_byte(devbusfn, 0xB1, 0x02);
|
||
|
|
pci_write_config_word(devbusfn, 0xB2, 0x328A);
|
||
|
|
pci_write_config_dword(devbusfn, 0xB4, 0x62DD62DD);
|
||
|
|
pci_write_config_dword(devbusfn, 0xB8, 0x43924392);
|
||
|
|
pci_write_config_dword(devbusfn, 0xBC, 0x40094009);
|
||
|
|
}
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ide_set_reset (int flag) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* CFG_IDE_SIL680 */
|