1 /*
2  * Copyright (C) 2013 Gateworks Corporation
3  *
4  * Author: Tim Harvey <tharvey@gateworks.com>
5  *
6  * SPDX-License-Identifier: GPL-2.0+
7  */
8 
9 #ifndef _GWVENTANA_COMMON_H_
10 #define _GWVENTANA_COMMON_H_
11 
12 #include "ventana_eeprom.h"
13 
14 /* GPIO's common to all baseboards */
15 #define GP_PHY_RST	IMX_GPIO_NR(1, 30)
16 #define GP_RS232_EN	IMX_GPIO_NR(2, 11)
17 #define GP_MSATA_SEL	IMX_GPIO_NR(2, 8)
18 
19 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
20 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
21 	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
22 
23 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
24 	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |		\
25 	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
26 
27 #define ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
28 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED	  |		\
29 	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
30 
31 #define SPI_PAD_CTRL (PAD_CTL_HYS |				\
32 	PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |		\
33 	PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
34 
35 #define I2C_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
36 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
37 	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
38 
39 #define IRQ_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
40 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
41 	PAD_CTL_DSE_34ohm | PAD_CTL_HYS | PAD_CTL_SRE_FAST)
42 
43 #define DIO_PAD_CFG   (MUX_PAD_CTRL(IRQ_PAD_CTRL) | MUX_MODE_SION)
44 
45 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
46 
47 /*
48  * each baseboard has an optional set user configurable Digital IO lines which
49  * can be pinmuxed as a GPIO or in some cases a PWM
50  */
51 struct dio_cfg {
52 	iomux_v3_cfg_t gpio_padmux[2];
53 	unsigned gpio_param;
54 	iomux_v3_cfg_t pwm_padmux[2];
55 	unsigned pwm_param;
56 };
57 
58 struct ventana {
59 	/* pinmux */
60 	iomux_v3_cfg_t const *gpio_pads;
61 	int num_pads;
62 	/* DIO pinmux/val */
63 	struct dio_cfg *dio_cfg;
64 	int dio_num;
65 	/* various gpios (0 if non-existent) */
66 	int leds[3];
67 	int pcie_rst;
68 	int mezz_pwren;
69 	int mezz_irq;
70 	int rs485en;
71 	int gps_shdn;
72 	int vidin_en;
73 	int dioi2c_en;
74 	int pcie_sson;
75 	int usb_sel;
76 	int wdis;
77 	int msata_en;
78 	int rs232_en;
79 	int otgpwr_en;
80 	int vsel_pin;
81 	int mmc_cd;
82 	/* various features */
83 	bool usd_vsel;
84 };
85 
86 extern struct ventana gpio_cfg[GW_UNKNOWN];
87 
88 /* configure i2c iomux */
89 void setup_ventana_i2c(void);
90 /* configure uart iomux */
91 void setup_iomux_uart(void);
92 /* conifgure PMIC */
93 void setup_pmic(void);
94 /* configure gpio iomux/defaults */
95 void setup_iomux_gpio(int board, struct ventana_board_info *);
96 /* late setup of GPIO (configuration per baseboard and env) */
97 void setup_board_gpio(int board, struct ventana_board_info *);
98 
99 #endif /* #ifndef _GWVENTANA_COMMON_H_ */
100