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-rw-r--r--include/asm-cris/arch-v10/ide.h99
-rw-r--r--include/asm-cris/ide.h1
2 files changed, 100 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v10/ide.h b/include/asm-cris/arch-v10/ide.h
new file mode 100644
index 000000000000..8cf2d7cb22ac
--- /dev/null
+++ b/include/asm-cris/arch-v10/ide.h
@@ -0,0 +1,99 @@
1/*
2 * linux/include/asm-cris/ide.h
3 *
4 * Copyright (C) 2000, 2001, 2002 Axis Communications AB
5 *
6 * Authors: Bjorn Wesen
7 *
8 */
9
10/*
11 * This file contains the ETRAX 100LX specific IDE code.
12 */
13
14#ifndef __ASMCRIS_IDE_H
15#define __ASMCRIS_IDE_H
16
17#ifdef __KERNEL__
18
19#include <asm/arch/svinto.h>
20#include <asm/io.h>
21#include <asm-generic/ide_iops.h>
22
23
24/* ETRAX 100 can support 4 IDE busses on the same pins (serialized) */
25
26#define MAX_HWIFS 4
27
28extern __inline__ int ide_default_irq(unsigned long base)
29{
30 /* all IDE busses share the same IRQ, number 4.
31 * this has the side-effect that ide-probe.c will cluster our 4 interfaces
32 * together in a hwgroup, and will serialize accesses. this is good, because
33 * we can't access more than one interface at the same time on ETRAX100.
34 */
35 return 4;
36}
37
38extern __inline__ unsigned long ide_default_io_base(int index)
39{
40 /* we have no real I/O base address per interface, since all go through the
41 * same register. but in a bitfield in that register, we have the i/f number.
42 * so we can use the io_base to remember that bitfield.
43 */
44 static const unsigned long io_bases[MAX_HWIFS] = {
45 IO_FIELD(R_ATA_CTRL_DATA, sel, 0),
46 IO_FIELD(R_ATA_CTRL_DATA, sel, 1),
47 IO_FIELD(R_ATA_CTRL_DATA, sel, 2),
48 IO_FIELD(R_ATA_CTRL_DATA, sel, 3)
49 };
50 return io_bases[index];
51}
52
53/* this is called once for each interface, to setup the port addresses. data_port is the result
54 * of the ide_default_io_base call above. ctrl_port will be 0, but that is don't care for us.
55 */
56
57extern __inline__ void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port, unsigned long ctrl_port, int *irq)
58{
59 int i;
60
61 /* fill in ports for ATA addresses 0 to 7 */
62
63 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
64 hw->io_ports[i] = data_port |
65 IO_FIELD(R_ATA_CTRL_DATA, addr, i) |
66 IO_STATE(R_ATA_CTRL_DATA, cs0, active);
67 }
68
69 /* the IDE control register is at ATA address 6, with CS1 active instead of CS0 */
70
71 hw->io_ports[IDE_CONTROL_OFFSET] = data_port |
72 IO_FIELD(R_ATA_CTRL_DATA, addr, 6) |
73 IO_STATE(R_ATA_CTRL_DATA, cs1, active);
74
75 /* whats this for ? */
76
77 hw->io_ports[IDE_IRQ_OFFSET] = 0;
78}
79
80extern __inline__ void ide_init_default_hwifs(void)
81{
82 hw_regs_t hw;
83 int index;
84
85 for(index = 0; index < MAX_HWIFS; index++) {
86 ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
87 hw.irq = ide_default_irq(ide_default_io_base(index));
88 ide_register_hw(&hw, NULL);
89 }
90}
91
92/* some configuration options we don't need */
93
94#undef SUPPORT_VLB_SYNC
95#define SUPPORT_VLB_SYNC 0
96
97#endif /* __KERNEL__ */
98
99#endif /* __ASMCRIS_IDE_H */
diff --git a/include/asm-cris/ide.h b/include/asm-cris/ide.h
new file mode 100644
index 000000000000..a894f66665f8
--- /dev/null
+++ b/include/asm-cris/ide.h
@@ -0,0 +1 @@
#include <asm/arch/ide.h>