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/* 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_ */
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