diff options
Diffstat (limited to 'arch/arm/mach-sa1100/include/mach/ide.h')
-rw-r--r-- | arch/arm/mach-sa1100/include/mach/ide.h | 75 |
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 new file mode 100644 index 000000000000..4c99c8f5e617 --- /dev/null +++ b/arch/arm/mach-sa1100/include/mach/ide.h | |||
@@ -0,0 +1,75 @@ | |||
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 | */ | ||
23 | static 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 | */ | ||
55 | static __inline__ void | ||
56 | ide_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 | } | ||