board/gateworks/gw_ventana/common.h

/*
 * Copyright (C) 2013 Gateworks Corporation
 *
 * Author: Tim Harvey <tharvey@gateworks.com>
 *
 * SPDX-License-Identifier: GPL-2.0+
 */

#ifndef _GWVENTANA_COMMON_H_
#define _GWVENTANA_COMMON_H_

#include "ventana_eeprom.h"

/* GPIO's common to all baseboards */
#define GP_PHY_RST	IMX_GPIO_NR(1, 30)
#define GP_USB_OTG_PWR	IMX_GPIO_NR(3, 22)
#define GP_SD3_CD	IMX_GPIO_NR(7, 0)
#define GP_RS232_EN	IMX_GPIO_NR(2, 11)
#define GP_MSATA_SEL	IMX_GPIO_NR(2, 8)

#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |		\
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED	  |		\
	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)

#define SPI_PAD_CTRL (PAD_CTL_HYS |				\
	PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)

#define DIO_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_34ohm | PAD_CTL_HYS | PAD_CTL_SRE_FAST)

#define I2C_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
	PAD_CTL_ODE | PAD_CTL_SRE_FAST)

#define IRQ_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_34ohm | PAD_CTL_HYS | PAD_CTL_SRE_FAST)

#define DIO_PAD_CFG   (MUX_PAD_CTRL(DIO_PAD_CTRL) | MUX_MODE_SION)

#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)

/*
 * each baseboard has 4 user configurable Digital IO lines which can
 * be pinmuxed as a GPIO or in some cases a PWM
 */
struct dio_cfg {
	iomux_v3_cfg_t gpio_padmux[2];
	unsigned gpio_param;
	iomux_v3_cfg_t pwm_padmux[2];
	unsigned pwm_param;
};

struct ventana {
	/* pinmux */
	iomux_v3_cfg_t const *gpio_pads;
	int num_pads;
	/* DIO pinmux/val */
	struct dio_cfg dio_cfg[4];
	int num_gpios;
	/* various gpios (0 if non-existent) */
	int leds[3];
	int pcie_rst;
	int mezz_pwren;
	int mezz_irq;
	int rs485en;
	int gps_shdn;
	int vidin_en;
	int dioi2c_en;
	int pcie_sson;
	int usb_sel;
	int wdis;
};

extern struct ventana gpio_cfg[GW_UNKNOWN];

/* configure i2c iomux */
void setup_ventana_i2c(void);
/* configure uart iomux */
void setup_iomux_uart(void);
/* conifgure PMIC */
void setup_pmic(void);
/* configure gpio iomux/defaults */
void setup_iomux_gpio(int board, struct ventana_board_info *);
/* late setup of GPIO (configuration per baseboard and env) */
void setup_board_gpio(int board, struct ventana_board_info *);

#endif /* #ifndef _GWVENTANA_COMMON_H_ */