board/gateworks/gw_ventana/common.h

   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_ */