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-rw-r--r--arch/arm/mach-sa1100/include/mach/ide.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/ide.h b/arch/arm/mach-sa1100/include/mach/ide.h
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1/*
2 * arch/arm/mach-sa1100/include/mach/ide.h
3 *
4 * Copyright (c) 1998 Hugo Fiennes & Nicolas Pitre
5 *
6 * 18-aug-2000: Cleanup by Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
7 * Get rid of the special ide_init_hwif_ports() functions
8 * and make a generalised function that can be used by all
9 * architectures.
10 */
11
12#include <asm/irq.h>
13#include <mach/hardware.h>
14#include <asm/mach-types.h>
15
16#error "This code is broken and needs update to match with current ide support"
17
18
19/*
20 * Set up a hw structure for a specified data port, control port and IRQ.
21 * This should follow whatever the default interface uses.
22 */
23static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
24 unsigned long ctrl_port, int *irq)
25{
26 unsigned long reg = data_port;
27 int i;
28 int regincr = 1;
29
30 /* The Empeg board has the first two address lines unused */
31 if (machine_is_empeg())
32 regincr = 1 << 2;
33
34 /* The LART doesn't use A0 for IDE */
35 if (machine_is_lart())
36 regincr = 1 << 1;
37
38 memset(hw, 0, sizeof(*hw));
39
40 for (i = 0; i <= 7; i++) {
41 hw->io_ports_array[i] = reg;
42 reg += regincr;
43 }
44
45 hw->io_ports.ctl_addr = ctrl_port;
46
47 if (irq)
48 *irq = 0;
49}
50
51/*
52 * This registers the standard ports for this architecture with the IDE
53 * driver.
54 */
55static __inline__ void
56ide_init_default_hwifs(void)
57{
58 if (machine_is_lart()) {
59#ifdef CONFIG_SA1100_LART
60 hw_regs_t hw;
61
62 /* Enable GPIO as interrupt line */
63 GPDR &= ~LART_GPIO_IDE;
64 set_irq_type(LART_IRQ_IDE, IRQ_TYPE_EDGE_RISING);
65
66 /* set PCMCIA interface timing */
67 MECR = 0x00060006;
68
69 /* init the interface */
70 ide_init_hwif_ports(&hw, PCMCIA_IO_0_BASE + 0x0000, PCMCIA_IO_0_BASE + 0x1000, NULL);
71 hw.irq = LART_IRQ_IDE;
72 ide_register_hw(&hw);
73#endif
74 }
75}