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_USB_OTG_PWR	IMX_GPIO_NR(3, 22)
17 #define GP_SD3_CD	IMX_GPIO_NR(7, 0)
18 #define GP_RS232_EN	IMX_GPIO_NR(2, 11)
19 #define GP_MSATA_SEL	IMX_GPIO_NR(2, 8)
20 #define GP_SD3_VSELECT	IMX_GPIO_NR(6, 14)
21 
22 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
23 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
24 	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
25 
26 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
27 	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |		\
28 	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
29 
30 #define ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
31 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED	  |		\
32 	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
33 
34 #define SPI_PAD_CTRL (PAD_CTL_HYS |				\
35 	PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |		\
36 	PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
37 
38 #define I2C_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
39 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
40 	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
41 
42 #define IRQ_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
43 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
44 	PAD_CTL_DSE_34ohm | PAD_CTL_HYS | PAD_CTL_SRE_FAST)
45 
46 #define DIO_PAD_CFG   (MUX_PAD_CTRL(IRQ_PAD_CTRL) | MUX_MODE_SION)
47 
48 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
49 
50 /*
51  * each baseboard has 4 user configurable Digital IO lines which can
52  * be pinmuxed as a GPIO or in some cases a PWM
53  */
54 struct dio_cfg {
55 	iomux_v3_cfg_t gpio_padmux[2];
56 	unsigned gpio_param;
57 	iomux_v3_cfg_t pwm_padmux[2];
58 	unsigned pwm_param;
59 };
60 
61 struct ventana {
62 	/* pinmux */
63 	iomux_v3_cfg_t const *gpio_pads;
64 	int num_pads;
65 	/* DIO pinmux/val */
66 	struct dio_cfg dio_cfg[4];
67 	int num_gpios;
68 	/* various gpios (0 if non-existent) */
69 	int leds[3];
70 	int pcie_rst;
71 	int mezz_pwren;
72 	int mezz_irq;
73 	int rs485en;
74 	int gps_shdn;
75 	int vidin_en;
76 	int dioi2c_en;
77 	int pcie_sson;
78 	int usb_sel;
79 	int wdis;
80 	int msata_en;
81 	bool usd_vsel;
82 };
83 
84 extern struct ventana gpio_cfg[GW_UNKNOWN];
85 
86 /* configure i2c iomux */
87 void setup_ventana_i2c(void);
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