2 * Copyright 2002 Integrated Device Technology, Inc.
5 * GPIO register definition.
7 * Author : ryan.holmQVist@idt.com
9 * Copyright (C) 2001, 2002 Ryan Holm <ryan.holmQVist@idt.com>
10 * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
13 #ifndef _RC32434_GPIO_H_
14 #define _RC32434_GPIO_H_
16 #include <linux/types.h>
17 #include <asm-generic/gpio.h>
19 #define NR_BUILTIN_GPIO 32
21 #define gpio_get_value __gpio_get_value
22 #define gpio_set_value __gpio_set_value
23 #define gpio_cansleep __gpio_cansleep
25 #define gpio_to_irq(gpio) (8 + 4 * 32 + gpio)
26 #define irq_to_gpio(irq) (irq - (8 + 4 * 32))
28 struct rb532_gpio_reg {
29 u32 gpiofunc; /* GPIO Function Register
30 * gpiofunc[x]==0 bit = gpio
31 * func[x]==1 bit = altfunc
33 u32 gpiocfg; /* GPIO Configuration Register
34 * gpiocfg[x]==0 bit = input
35 * gpiocfg[x]==1 bit = output
37 u32 gpiod; /* GPIO Data Register
38 * gpiod[x] read/write gpio pinX status
40 u32 gpioilevel; /* GPIO Interrupt Status Register
41 * interrupt level (see gpioistat)
43 u32 gpioistat; /* Gpio Interrupt Status Register
44 * istat[x] = (gpiod[x] == level[x])
45 * cleared in ISR (STICKY bits)
47 u32 gpionmien; /* GPIO Non-maskable Interrupt Enable Register */
50 /* UART GPIO signals */
51 #define RC32434_UART0_SOUT (1 << 0)
52 #define RC32434_UART0_SIN (1 << 1)
53 #define RC32434_UART0_RTS (1 << 2)
54 #define RC32434_UART0_CTS (1 << 3)
56 /* M & P bus GPIO signals */
57 #define RC32434_MP_BIT_22 (1 << 4)
58 #define RC32434_MP_BIT_23 (1 << 5)
59 #define RC32434_MP_BIT_24 (1 << 6)
60 #define RC32434_MP_BIT_25 (1 << 7)
62 /* CPU GPIO signals */
63 #define RC32434_CPU_GPIO (1 << 8)
65 /* Reserved GPIO signals */
66 #define RC32434_AF_SPARE_6 (1 << 9)
67 #define RC32434_AF_SPARE_4 (1 << 10)
68 #define RC32434_AF_SPARE_3 (1 << 11)
69 #define RC32434_AF_SPARE_2 (1 << 12)
71 /* PCI messaging unit */
72 #define RC32434_PCI_MSU_GPIO (1 << 13)
74 /* NAND GPIO signals */
80 /* Compact Flash GPIO pin */
81 #define CF_GPIO_NUM 13
83 extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
84 extern void rb532_gpio_set_istat(int bit, unsigned gpio);
85 extern void rb532_gpio_set_func(unsigned gpio);
87 #endif /* _RC32434_GPIO_H_ */