diff options
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/gpio-davinci.h')
-rw-r--r-- | arch/arm/mach-davinci/include/mach/gpio-davinci.h | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/arch/arm/mach-davinci/include/mach/gpio-davinci.h b/arch/arm/mach-davinci/include/mach/gpio-davinci.h deleted file mode 100644 index 1fdd1fd35448..000000000000 --- a/arch/arm/mach-davinci/include/mach/gpio-davinci.h +++ /dev/null | |||
@@ -1,91 +0,0 @@ | |||
1 | /* | ||
2 | * TI DaVinci GPIO Support | ||
3 | * | ||
4 | * Copyright (c) 2006 David Brownell | ||
5 | * Copyright (c) 2007, MontaVista Software, Inc. <source@mvista.com> | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | */ | ||
12 | |||
13 | #ifndef __DAVINCI_DAVINCI_GPIO_H | ||
14 | #define __DAVINCI_DAVINCI_GPIO_H | ||
15 | |||
16 | #include <linux/io.h> | ||
17 | #include <linux/spinlock.h> | ||
18 | |||
19 | #include <asm-generic/gpio.h> | ||
20 | |||
21 | #include <mach/irqs.h> | ||
22 | #include <mach/common.h> | ||
23 | |||
24 | #define DAVINCI_GPIO_BASE 0x01C67000 | ||
25 | |||
26 | enum davinci_gpio_type { | ||
27 | GPIO_TYPE_DAVINCI = 0, | ||
28 | GPIO_TYPE_TNETV107X, | ||
29 | }; | ||
30 | |||
31 | /* | ||
32 | * basic gpio routines | ||
33 | * | ||
34 | * board-specific init should be done by arch/.../.../board-XXX.c (maybe | ||
35 | * initializing banks together) rather than boot loaders; kexec() won't | ||
36 | * go through boot loaders. | ||
37 | * | ||
38 | * the gpio clock will be turned on when gpios are used, and you may also | ||
39 | * need to pay attention to PINMUX registers to be sure those pins are | ||
40 | * used as gpios, not with other peripherals. | ||
41 | * | ||
42 | * On-chip GPIOs are numbered 0..(DAVINCI_N_GPIO-1). For documentation, | ||
43 | * and maybe for later updates, code may write GPIO(N). These may be | ||
44 | * all 1.8V signals, all 3.3V ones, or a mix of the two. A given chip | ||
45 | * may not support all the GPIOs in that range. | ||
46 | * | ||
47 | * GPIOs can also be on external chips, numbered after the ones built-in | ||
48 | * to the DaVinci chip. For now, they won't be usable as IRQ sources. | ||
49 | */ | ||
50 | #define GPIO(X) (X) /* 0 <= X <= (DAVINCI_N_GPIO - 1) */ | ||
51 | |||
52 | /* Convert GPIO signal to GPIO pin number */ | ||
53 | #define GPIO_TO_PIN(bank, gpio) (16 * (bank) + (gpio)) | ||
54 | |||
55 | struct davinci_gpio_controller { | ||
56 | struct gpio_chip chip; | ||
57 | int irq_base; | ||
58 | spinlock_t lock; | ||
59 | void __iomem *regs; | ||
60 | void __iomem *set_data; | ||
61 | void __iomem *clr_data; | ||
62 | void __iomem *in_data; | ||
63 | }; | ||
64 | |||
65 | /* The __gpio_to_controller() and __gpio_mask() functions inline to constants | ||
66 | * with constant parameters; or in outlined code they execute at runtime. | ||
67 | * | ||
68 | * You'd access the controller directly when reading or writing more than | ||
69 | * one gpio value at a time, and to support wired logic where the value | ||
70 | * being driven by the cpu need not match the value read back. | ||
71 | * | ||
72 | * These are NOT part of the cross-platform GPIO interface | ||
73 | */ | ||
74 | static inline struct davinci_gpio_controller * | ||
75 | __gpio_to_controller(unsigned gpio) | ||
76 | { | ||
77 | struct davinci_gpio_controller *ctlrs = davinci_soc_info.gpio_ctlrs; | ||
78 | int index = gpio / 32; | ||
79 | |||
80 | if (!ctlrs || index >= davinci_soc_info.gpio_ctlrs_num) | ||
81 | return NULL; | ||
82 | |||
83 | return ctlrs + index; | ||
84 | } | ||
85 | |||
86 | static inline u32 __gpio_mask(unsigned gpio) | ||
87 | { | ||
88 | return 1 << (gpio % 32); | ||
89 | } | ||
90 | |||
91 | #endif /* __DAVINCI_DAVINCI_GPIO_H */ | ||