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 16 struct 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 74 extern void rb532_gpio_set_ilevel(int bit, unsigned gpio); 75 extern void rb532_gpio_set_istat(int bit, unsigned gpio); 76 extern void rb532_gpio_set_func(unsigned gpio); 77 78 #endif /* _RC32434_GPIO_H_ */ 79