1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * IDE routines for NEC VR4100 series standard configurations.
7 *
8 * Copyright (C) 1998, 1999, 2001 by Ralf Baechle
9 * Copyright (C) 2003 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
10 */
11 #include <linux/hdreg.h>
12 #include <linux/ide.h>
13
14 #include <asm/hdreg.h>
15
vr41xx_ide_default_irq(ide_ioreg_t base)16 static int vr41xx_ide_default_irq(ide_ioreg_t base)
17 {
18 return 0;
19 }
20
vr41xx_ide_default_io_base(int index)21 static ide_ioreg_t vr41xx_ide_default_io_base(int index)
22 {
23 return 0;
24 }
25
vr41xx_ide_init_hwif_ports(hw_regs_t * hw,ide_ioreg_t data_port,ide_ioreg_t ctrl_port,int * irq)26 static void vr41xx_ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port,
27 ide_ioreg_t ctrl_port, int *irq)
28 {
29 ide_ioreg_t reg = data_port;
30 int i;
31
32 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
33 hw->io_ports[i] = reg;
34 reg += 1;
35 }
36 if (ctrl_port) {
37 hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
38 } else {
39 hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206;
40 }
41 if (irq != NULL)
42 *irq = 0;
43 hw->io_ports[IDE_IRQ_OFFSET] = 0;
44 }
45
46 struct ide_ops vr41xx_ide_ops = {
47 .ide_default_irq = &vr41xx_ide_default_irq,
48 .ide_default_io_base = &vr41xx_ide_default_io_base,
49 .ide_init_hwif_ports = &vr41xx_ide_init_hwif_ports
50 };
51