1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/* -*- mode:c -*-
* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Inputs with interrupt handlers are first for efficiency */
/* User Push buttons */
GPIO_INT(SW_N, 0, 0, GPIO_INT_RISING, button_event)
GPIO_INT(SW_S, 0, 1, GPIO_INT_RISING, button_event)
GPIO_INT(SW_W, 0, 2, GPIO_INT_RISING, button_event)
GPIO_INT(SW_E, 0, 3, GPIO_INT_RISING, button_event)
/* We can't trigger on both rising and falling edge, so attach each button
* to two input GPIOs. */
GPIO_INT(SW_N_, 1, 0, GPIO_INT_FALLING, button_event)
GPIO_INT(SW_S_, 1, 1, GPIO_INT_FALLING, button_event)
GPIO_INT(SW_W_, 1, 2, GPIO_INT_FALLING, button_event)
GPIO_INT(SW_E_, 1, 3, GPIO_INT_FALLING, button_event)
/* User GPIO LEDs */
GPIO(LED_2, 0, 4, GPIO_OUT_LOW)
GPIO(LED_3, 0, 5, GPIO_OUT_LOW)
GPIO(LED_4, 0, 6, GPIO_OUT_LOW)
GPIO(LED_5, 0, 7, GPIO_OUT_LOW)
GPIO(LED_6, 0, 8, GPIO_OUT_LOW)
GPIO(LED_7, 0, 9, GPIO_OUT_LOW)
/* Unimplemented signals which we need to emulate for now */
UNIMPLEMENTED(ENTERING_RW)
/* The Cr50 ARM core has no alternate functions, so we repurpose that
* macro to describe the PINMUX setup. The args are
*
* 1. The ARM core GPIO or SoC peripheral function to connect
* 2. The pinmux DIO pad to connect to
* 3. <ignored>
* 4. MODULE_GPIO, to prevent being called by gpio_config_module()
* 5. flags to specify the direction if the GPIO isn't enough
*/
/* The serial port is one of the SoC peripheral functions */
ALTERNATE(FUNC(UART0_TX), DIO(A0), 0, MODULE_GPIO, DIO_OUTPUT)
ALTERNATE(FUNC(UART0_RX), DIO(A1), 0, MODULE_GPIO, DIO_INPUT)
/* Inputs */
ALTERNATE(SW_N, DIO(M0), 0, MODULE_GPIO, 0)
ALTERNATE(SW_S, DIO(M1), 0, MODULE_GPIO, 0)
ALTERNATE(SW_W, DIO(M2), 0, MODULE_GPIO, 0)
ALTERNATE(SW_E, DIO(M3), 0, MODULE_GPIO, 0)
/* Aliased Inputs, connected to the same pins */
ALTERNATE(SW_N_, DIO(M0), 0, MODULE_GPIO, 0)
ALTERNATE(SW_S_, DIO(M1), 0, MODULE_GPIO, 0)
ALTERNATE(SW_W_, DIO(M2), 0, MODULE_GPIO, 0)
ALTERNATE(SW_E_, DIO(M3), 0, MODULE_GPIO, 0)
/* Outputs - also mark as inputs so we can read back from the driven pin */
ALTERNATE(LED_2, DIO(A9), 0, MODULE_GPIO, DIO_INPUT)
ALTERNATE(LED_3, DIO(A10), 0, MODULE_GPIO, DIO_INPUT)
ALTERNATE(LED_4, DIO(A11), 0, MODULE_GPIO, DIO_INPUT)
ALTERNATE(LED_5, DIO(A12), 0, MODULE_GPIO, DIO_INPUT)
ALTERNATE(LED_6, DIO(A13), 0, MODULE_GPIO, DIO_INPUT)
ALTERNATE(LED_7, DIO(A14), 0, MODULE_GPIO, DIO_INPUT)
|
