| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright 2002 Integrated Device Technology, Inc. |
| * All rights reserved. |
| * |
| * GPIO register definition. |
| * |
| * Author : ryan.holmQVist@idt.com |
| * Date : 20011005 |
| * Copyright (C) 2001, 2002 Ryan Holm <ryan.holmQVist@idt.com> |
| * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org> |
| */ |
| |
| #ifndef _RC32434_GPIO_H_ |
| #define _RC32434_GPIO_H_ |
| |
| struct rb532_gpio_reg { |
| u32 gpiofunc; /* GPIO Function Register |
| * gpiofunc[x]==0 bit = gpio |
| * func[x]==1 bit = altfunc |
| */ |
| u32 gpiocfg; /* GPIO Configuration Register |
| * gpiocfg[x]==0 bit = input |
| * gpiocfg[x]==1 bit = output |
| */ |
| u32 gpiod; /* GPIO Data Register |
| * gpiod[x] read/write gpio pinX status |
| */ |
| u32 gpioilevel; /* GPIO Interrupt Status Register |
| * interrupt level (see gpioistat) |
| */ |
| u32 gpioistat; /* Gpio Interrupt Status Register |
| * istat[x] = (gpiod[x] == level[x]) |
| * cleared in ISR (STICKY bits) |
| */ |
| u32 gpionmien; /* GPIO Non-maskable Interrupt Enable Register */ |
| }; |
| |
| /* UART GPIO signals */ |
| #define RC32434_UART0_SOUT (1 << 0) |
| #define RC32434_UART0_SIN (1 << 1) |
| #define RC32434_UART0_RTS (1 << 2) |
| #define RC32434_UART0_CTS (1 << 3) |
| |
| /* M & P bus GPIO signals */ |
| #define RC32434_MP_BIT_22 (1 << 4) |
| #define RC32434_MP_BIT_23 (1 << 5) |
| #define RC32434_MP_BIT_24 (1 << 6) |
| #define RC32434_MP_BIT_25 (1 << 7) |
| |
| /* CPU GPIO signals */ |
| #define RC32434_CPU_GPIO (1 << 8) |
| |
| /* Reserved GPIO signals */ |
| #define RC32434_AF_SPARE_6 (1 << 9) |
| #define RC32434_AF_SPARE_4 (1 << 10) |
| #define RC32434_AF_SPARE_3 (1 << 11) |
| #define RC32434_AF_SPARE_2 (1 << 12) |
| |
| /* PCI messaging unit */ |
| #define RC32434_PCI_MSU_GPIO (1 << 13) |
| |
| /* NAND GPIO signals */ |
| #define GPIO_RDY 8 |
| #define GPIO_WPX 9 |
| #define GPIO_ALE 10 |
| #define GPIO_CLE 11 |
| |
| /* Compact Flash GPIO pin */ |
| #define CF_GPIO_NUM 13 |
| |
| /* S1 button GPIO (shared with UART0_SIN) */ |
| #define GPIO_BTN_S1 1 |
| |
| extern void rb532_gpio_set_ilevel(int bit, unsigned gpio); |
| extern void rb532_gpio_set_istat(int bit, unsigned gpio); |
| extern void rb532_gpio_set_func(unsigned gpio); |
| |
| #endif /* _RC32434_GPIO_H_ */ |
