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
  16 static 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
  22 static 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
  33 static 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
  41 static 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
  62 void enable_uart0_pin_mux(void)
  63 {
  64         configure_module_pin_mux(uart0_pin_mux);
  65 }
  66
  67 /*
  68  * Do board-specific muxes.
  69  */
  70 void enable_board_pin_mux(void)
  71 {
  72         /* I2C0 */
  73         configure_module_pin_mux(i2c0_pin_mux);
  74         /* SD Card */
  75         configure_module_pin_mux(mmc0_pin_mux);
  76         /* Ethernet pinmux. */
  77         configure_module_pin_mux(rgmii1_pin_mux);
  78 }