diff options
Diffstat (limited to 'firmware/target/arm/imx233/pinctrl-imx233.h')
-rw-r--r-- | firmware/target/arm/imx233/pinctrl-imx233.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/pinctrl-imx233.h b/firmware/target/arm/imx233/pinctrl-imx233.h new file mode 100644 index 0000000000..291b5c8ff7 --- /dev/null +++ b/firmware/target/arm/imx233/pinctrl-imx233.h | |||
@@ -0,0 +1,109 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2011 by Amaury Pouly | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | |||
22 | |||
23 | #ifndef __PINCTRL_IMX233_H__ | ||
24 | #define __PINCTRL_IMX233_H__ | ||
25 | |||
26 | #include "cpu.h" | ||
27 | |||
28 | #define HW_PINCTRL_BASE 0x80018000 | ||
29 | |||
30 | #define HW_PINCTRL_CTRL (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x0)) | ||
31 | #define HW_PINCTRL_MUXSEL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x100 + (i) * 0x10)) | ||
32 | #define HW_PINCTRL_DRIVE(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x200 + (i) * 0x10)) | ||
33 | #define HW_PINCTRL_PULL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x400 + (i) * 0x10)) | ||
34 | #define HW_PINCTRL_DOUT(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x500 + (i) * 0x10)) | ||
35 | #define HW_PINCTRL_DIN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x600 + (i) * 0x10)) | ||
36 | #define HW_PINCTRL_DOE(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x700 + (i) * 0x10)) | ||
37 | #define HW_PINCTRL_PIN2IRQ(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x800 + (i) * 0x10)) | ||
38 | #define HW_PINCTRL_IRQEN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x900 + (i) * 0x10)) | ||
39 | #define HW_PINCTRL_IRQEN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x900 + (i) * 0x10)) | ||
40 | #define HW_PINCTRL_IRQLEVEL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xa00 + (i) * 0x10)) | ||
41 | #define HW_PINCTRL_IRQPOL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xb00 + (i) * 0x10)) | ||
42 | #define HW_PINCTRL_IRQSTAT(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xc00 + (i) * 0x10)) | ||
43 | |||
44 | #define PINCTRL_FUNCTION_MAIN 0 | ||
45 | #define PINCTRL_FUNCTION_ALT1 1 | ||
46 | #define PINCTRL_FUNCTION_ALT2 2 | ||
47 | #define PINCTRL_FUNCTION_GPIO 3 | ||
48 | |||
49 | #define PINCTRL_DRIVE_4mA 0 | ||
50 | #define PINCTRL_DRIVE_8mA 1 | ||
51 | #define PINCTRL_DRIVE_12mA 2 | ||
52 | #define PINCTRL_DRIVE_16mA 3 /* not available on all pins */ | ||
53 | |||
54 | static inline void imx233_pinctrl_init(void) | ||
55 | { | ||
56 | __REG_CLR(HW_PINCTRL_CTRL) = __BLOCK_CLKGATE; | ||
57 | __REG_CLR(HW_PINCTRL_CTRL) = __BLOCK_SFTRST; | ||
58 | } | ||
59 | |||
60 | static inline void imx233_set_pin_drive_strength(unsigned bank, unsigned pin, unsigned strength) | ||
61 | { | ||
62 | __REG_CLR(HW_PINCTRL_DRIVE(4 * bank + pin / 8)) = 3 << (4 * (pin % 8)); | ||
63 | __REG_SET(HW_PINCTRL_DRIVE(4 * bank + pin / 8)) = strength << (4 * (pin % 8)); | ||
64 | } | ||
65 | |||
66 | static inline void imx233_enable_gpio_output(unsigned bank, unsigned pin, bool enable) | ||
67 | { | ||
68 | if(enable) | ||
69 | __REG_SET(HW_PINCTRL_DOE(bank)) = 1 << pin; | ||
70 | else | ||
71 | __REG_CLR(HW_PINCTRL_DOE(bank)) = 1 << pin; | ||
72 | } | ||
73 | |||
74 | static inline void imx233_enable_gpio_output_mask(unsigned bank, uint32_t pin_mask, bool enable) | ||
75 | { | ||
76 | if(enable) | ||
77 | __REG_SET(HW_PINCTRL_DOE(bank)) = pin_mask; | ||
78 | else | ||
79 | __REG_CLR(HW_PINCTRL_DOE(bank)) = pin_mask; | ||
80 | } | ||
81 | |||
82 | static inline void imx233_set_gpio_output(unsigned bank, unsigned pin, bool value) | ||
83 | { | ||
84 | if(value) | ||
85 | __REG_SET(HW_PINCTRL_DOUT(bank)) = 1 << pin; | ||
86 | else | ||
87 | __REG_CLR(HW_PINCTRL_DOUT(bank)) = 1 << pin; | ||
88 | } | ||
89 | |||
90 | static inline void imx233_set_gpio_output_mask(unsigned bank, uint32_t pin_mask, bool value) | ||
91 | { | ||
92 | if(value) | ||
93 | __REG_SET(HW_PINCTRL_DOUT(bank)) = pin_mask; | ||
94 | else | ||
95 | __REG_CLR(HW_PINCTRL_DOUT(bank)) = pin_mask; | ||
96 | } | ||
97 | |||
98 | static inline uint32_t imx233_get_gpio_input_mask(unsigned bank, uint32_t pin_mask) | ||
99 | { | ||
100 | return HW_PINCTRL_DIN(bank) & pin_mask; | ||
101 | } | ||
102 | |||
103 | static inline void imx233_set_pin_function(unsigned bank, unsigned pin, unsigned function) | ||
104 | { | ||
105 | __REG_CLR(HW_PINCTRL_MUXSEL(2 * bank + pin / 16)) = 3 << (2 * (pin % 16)); | ||
106 | __REG_SET(HW_PINCTRL_MUXSEL(2 * bank + pin / 16)) = function << (2 * (pin % 16)); | ||
107 | } | ||
108 | |||
109 | #endif /* __PINCTRL_IMX233_H__ */ | ||