1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright (C) 2013 Gateworks Corporation
4  *
5  * Author: Tim Harvey <tharvey@gateworks.com>
6  */
7 
8 #ifndef _GWVENTANA_COMMON_H_
9 #define _GWVENTANA_COMMON_H_
10 
11 #include "ventana_eeprom.h"
12 
13 /* GPIO's common to all baseboards */
14 #define GP_RS232_EN	IMX_GPIO_NR(2, 11)
15 #define GP_MSATA_SEL	IMX_GPIO_NR(2, 8)
16 
17 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
18 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
19 	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
20 
21 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
22 	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |		\
23 	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
24 
25 #define ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
26 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED	  |		\
27 	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
28 
29 #define SPI_PAD_CTRL (PAD_CTL_HYS |				\
30 	PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |		\
31 	PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
32 
33 #define I2C_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
34 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
35 	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
36 
37 #define IRQ_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
38 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
39 	PAD_CTL_DSE_34ohm | PAD_CTL_HYS | PAD_CTL_SRE_FAST)
40 
41 #define DIO_PAD_CFG   (MUX_PAD_CTRL(IRQ_PAD_CTRL) | MUX_MODE_SION)
42 
43 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
44 
45 /*
46  * each baseboard has an optional set user configurable Digital IO lines which
47  * can be pinmuxed as a GPIO or in some cases a PWM
48  */
49 struct dio_cfg {
50 	iomux_v3_cfg_t gpio_padmux[2];
51 	unsigned gpio_param;
52 	iomux_v3_cfg_t pwm_padmux[2];
53 	unsigned pwm_param;
54 };
55 
56 struct ventana {
57 	/* pinmux */
58 	iomux_v3_cfg_t const *gpio_pads;
59 	int num_pads;
60 	/* DIO pinmux/val */
61 	struct dio_cfg *dio_cfg;
62 	int dio_num;
63 	/* various gpios (0 if non-existent) */
64 	int leds[3];
65 	int pcie_rst;
66 	int mezz_pwren;
67 	int mezz_irq;
68 	int rs485en;
69 	int gps_shdn;
70 	int vidin_en;
71 	int dioi2c_en;
72 	int pcie_sson;
73 	int usb_sel;
74 	int wdis;
75 	int msata_en;
76 	int rs232_en;
77 	int vsel_pin;
78 	int mmc_cd;
79 	/* various features */
80 	bool usd_vsel;
81 	bool nand;
82 };
83 
84 extern struct ventana gpio_cfg[GW_UNKNOWN];
85 
86 /* configure i2c iomux */
87 void setup_ventana_i2c(int);
88 /* configure uart iomux */
89 void setup_iomux_uart(void);
90 /* conifgure PMIC */
91 void setup_pmic(void);
92 /* configure gpio iomux/defaults */
93 void setup_iomux_gpio(int board, struct ventana_board_info *);
94 /* late setup of GPIO (configuration per baseboard and env) */
95 void setup_board_gpio(int board, struct ventana_board_info *);
96 
97 #endif /* #ifndef _GWVENTANA_COMMON_H_ */
98