1/*
2 * Copyright 2002 Integrated Device Technology, Inc.
3 *	All rights reserved.
4 *
5 * GPIO register definition.
6 *
7 * Author : ryan.holmQVist@idt.com
8 * Date	  : 20011005
9 * Copyright (C) 2001, 2002 Ryan Holm <ryan.holmQVist@idt.com>
10 * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
11 */
12
13#ifndef _RC32434_GPIO_H_
14#define _RC32434_GPIO_H_
15
16struct rb532_gpio_reg {
17	u32   gpiofunc;	  /* GPIO Function Register
18			   * gpiofunc[x]==0 bit = gpio
19			   * func[x]==1	 bit = altfunc
20			   */
21	u32   gpiocfg;	  /* GPIO Configuration Register
22			   * gpiocfg[x]==0 bit = input
23			   * gpiocfg[x]==1 bit = output
24			   */
25	u32   gpiod;	  /* GPIO Data Register
26			   * gpiod[x] read/write gpio pinX status
27			   */
28	u32   gpioilevel; /* GPIO Interrupt Status Register
29			   * interrupt level (see gpioistat)
30			   */
31	u32   gpioistat;  /* Gpio Interrupt Status Register
32			   * istat[x] = (gpiod[x] == level[x])
33			   * cleared in ISR (STICKY bits)
34			   */
35	u32   gpionmien;  /* GPIO Non-maskable Interrupt Enable Register */
36};
37
38/* UART GPIO signals */
39#define RC32434_UART0_SOUT	(1 << 0)
40#define RC32434_UART0_SIN	(1 << 1)
41#define RC32434_UART0_RTS	(1 << 2)
42#define RC32434_UART0_CTS	(1 << 3)
43
44/* M & P bus GPIO signals */
45#define RC32434_MP_BIT_22	(1 << 4)
46#define RC32434_MP_BIT_23	(1 << 5)
47#define RC32434_MP_BIT_24	(1 << 6)
48#define RC32434_MP_BIT_25	(1 << 7)
49
50/* CPU GPIO signals */
51#define RC32434_CPU_GPIO	(1 << 8)
52
53/* Reserved GPIO signals */
54#define RC32434_AF_SPARE_6	(1 << 9)
55#define RC32434_AF_SPARE_4	(1 << 10)
56#define RC32434_AF_SPARE_3	(1 << 11)
57#define RC32434_AF_SPARE_2	(1 << 12)
58
59/* PCI messaging unit */
60#define RC32434_PCI_MSU_GPIO	(1 << 13)
61
62/* NAND GPIO signals */
63#define GPIO_RDY		8
64#define GPIO_WPX	9
65#define GPIO_ALE		10
66#define GPIO_CLE		11
67
68/* Compact Flash GPIO pin */
69#define CF_GPIO_NUM		13
70
71/* S1 button GPIO (shared with UART0_SIN) */
72#define GPIO_BTN_S1		1
73
74extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
75extern void rb532_gpio_set_istat(int bit, unsigned gpio);
76extern void rb532_gpio_set_func(unsigned gpio);
77
78#endif /* _RC32434_GPIO_H_ */
79