LXR uboot/board/gumstix/pepper/mux.c

   1/*
   2 * Muxing for Gumstix Pepper and AM335x-based boards
   3 *
   4 * Copyright (C) 2014, Gumstix, Incorporated - http://www.gumstix.com/
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8#include <common.h>
   9#include <asm/arch/sys_proto.h>
  10#include <asm/arch/hardware.h>
  11#include <asm/arch/mux.h>
  12#include <asm/io.h>
  13#include <i2c.h>
  14#include "board.h"
  15
  16static struct module_pin_mux uart0_pin_mux[] = {
  17        {OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)},  /* UART0_RXD */
  18        {OFFSET(uart0_txd), (MODE(0) | PULLUDEN)},              /* UART0_TXD */
  19        {-1},
  20};
  21
  22static struct module_pin_mux mmc0_pin_mux[] = {
  23        {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)},  /* MMC0_DAT3 */
  24        {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)},  /* MMC0_DAT2 */
  25        {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)},  /* MMC0_DAT1 */
  26        {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)},  /* MMC0_DAT0 */
  27        {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)},   /* MMC0_CLK */
  28        {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)},   /* MMC0_CMD */
  29        {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)},   /* MMC0_CD */
  30        {-1},
  31};
  32
  33static struct module_pin_mux i2c0_pin_mux[] = {
  34        /* I2C_DATA */
  35        {OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)},
  36        /* I2C_SCLK */
  37        {OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)},
  38        {-1},
  39};
  40
  41static struct module_pin_mux rgmii1_pin_mux[] = {
  42        {OFFSET(mii1_txen), MODE(2)},                   /* RGMII1_TCTL */
  43        {OFFSET(mii1_rxdv), MODE(2) | RXACTIVE},        /* RGMII1_RCTL */
  44        {OFFSET(mii1_txd3), MODE(2)},                   /* RGMII1_TD3 */
  45        {OFFSET(mii1_txd2), MODE(2)},                   /* RGMII1_TD2 */
  46        {OFFSET(mii1_txd1), MODE(2)},                   /* RGMII1_TD1 */
  47        {OFFSET(mii1_txd0), MODE(2)},                   /* RGMII1_TD0 */
  48        {OFFSET(mii1_txclk), MODE(2)},                  /* RGMII1_TCLK */
  49        {OFFSET(mii1_rxclk), MODE(2) | RXACTIVE},       /* RGMII1_RCLK */
  50        {OFFSET(mii1_rxd3), MODE(2) | RXACTIVE},        /* RGMII1_RD3 */
  51        {OFFSET(mii1_rxd2), MODE(2) | RXACTIVE},        /* RGMII1_RD2 */
  52        {OFFSET(mii1_rxd1), MODE(2) | RXACTIVE},        /* RGMII1_RD1 */
  53        {OFFSET(mii1_rxd0), MODE(2) | RXACTIVE},        /* RGMII1_RD0 */
  54        {OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN},/* MDIO_DATA */
  55        {OFFSET(mdio_clk), MODE(0) | PULLUP_EN},        /* MDIO_CLK */
  56        {OFFSET(rmii1_refclk), MODE(7) | RXACTIVE},     /* ETH_INT */
  57        {OFFSET(mii1_col), MODE(7) | PULLUP_EN},        /* PHY_NRESET */
  58        {OFFSET(xdma_event_intr1), MODE(3)},
  59        {-1},
  60};
  61
  62void enable_uart0_pin_mux(void)
  63{
  64        configure_module_pin_mux(uart0_pin_mux);
  65}
  66
  67void enable_i2c0_pin_mux(void)
  68{
  69        configure_module_pin_mux(i2c0_pin_mux);
  70}
  71
  72/*
  73 * Do board-specific muxes.
  74 */
  75void enable_board_pin_mux(void)
  76{
  77        /* I2C0 */
  78        configure_module_pin_mux(i2c0_pin_mux);
  79        /* SD Card */
  80        configure_module_pin_mux(mmc0_pin_mux);
  81        /* Ethernet pinmux. */
  82        configure_module_pin_mux(rgmii1_pin_mux);
  83}
  84