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