uboot/board/seco/common/mx6.c
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   1/*
   2 * Copyright (C) 2013 Freescale Semiconductor, Inc.
   3 * Copyright (C) 2015 ECA Sinters
   4 *
   5 * Author: Fabio Estevam <fabio.estevam@freescale.com>
   6 * Modified by: Boris Brezillon <boris.brezillon@free-electrons.com>
   7 *
   8 * SPDX-License-Identifier:     GPL-2.0+
   9 */
  10
  11#include <asm/arch/clock.h>
  12#include <asm/arch/imx-regs.h>
  13#include <asm/arch/iomux.h>
  14#include <asm/arch/mx6-pins.h>
  15#include <linux/errno.h>
  16#include <asm/gpio.h>
  17#include <asm/mach-imx/iomux-v3.h>
  18#include <asm/mach-imx/boot_mode.h>
  19#include <mmc.h>
  20#include <fsl_esdhc.h>
  21#include <miiphy.h>
  22#include <netdev.h>
  23#include <asm/arch/mxc_hdmi.h>
  24#include <asm/arch/crm_regs.h>
  25#include <linux/fb.h>
  26#include <ipu_pixfmt.h>
  27#include <asm/io.h>
  28#include <asm/arch/sys_proto.h>
  29#include <micrel.h>
  30#include <asm/mach-imx/mxc_i2c.h>
  31#include <i2c.h>
  32
  33#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  34        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  35        PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  36
  37static iomux_v3_cfg_t const uart2_pads[] = {
  38        MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  39        MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  40};
  41
  42void seco_mx6_setup_uart_iomux(void)
  43{
  44        imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
  45}
  46
  47#define ENET_PAD_CTRL   (PAD_CTL_PUS_47K_UP |   \
  48                         PAD_CTL_SPEED_MED |    \
  49                         PAD_CTL_DSE_40ohm |    \
  50                         PAD_CTL_HYS)
  51
  52static iomux_v3_cfg_t const enet_pads[] = {
  53        MX6_PAD_ENET_MDIO__ENET_MDIO            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  54        MX6_PAD_ENET_MDC__ENET_MDC              | MUX_PAD_CTRL(ENET_PAD_CTRL),
  55        MX6_PAD_RGMII_TXC__RGMII_TXC            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  56        MX6_PAD_RGMII_TD0__RGMII_TD0            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  57        MX6_PAD_RGMII_TD1__RGMII_TD1            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  58        MX6_PAD_RGMII_TD2__RGMII_TD2            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  59        MX6_PAD_RGMII_TD3__RGMII_TD3            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  60        MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
  61        MX6_PAD_ENET_REF_CLK__ENET_TX_CLK       | MUX_PAD_CTRL(ENET_PAD_CTRL),
  62        MX6_PAD_RGMII_RXC__RGMII_RXC            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  63        MX6_PAD_RGMII_RD0__RGMII_RD0            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  64        MX6_PAD_RGMII_RD1__RGMII_RD1            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  65        MX6_PAD_RGMII_RD2__RGMII_RD2            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  66        MX6_PAD_RGMII_RD3__RGMII_RD3            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  67        MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
  68};
  69
  70void seco_mx6_setup_enet_iomux(void)
  71{
  72        imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
  73}
  74
  75int seco_mx6_rgmii_rework(struct phy_device *phydev)
  76{
  77        /* control data pad skew - devaddr = 0x02, register = 0x04 */
  78        ksz9031_phy_extended_write(phydev, 0x02,
  79                                   MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
  80                                   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
  81        /* rx data pad skew - devaddr = 0x02, register = 0x05 */
  82        ksz9031_phy_extended_write(phydev, 0x02,
  83                                   MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
  84                                   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
  85        /* tx data pad skew - devaddr = 0x02, register = 0x05 */
  86        ksz9031_phy_extended_write(phydev, 0x02,
  87                                   MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
  88                                   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
  89
  90        /* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
  91        ksz9031_phy_extended_write(phydev, 0x02,
  92                                   MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
  93                                   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
  94        return 0;
  95}
  96
  97#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |    \
  98                        PAD_CTL_SPEED_LOW |     \
  99                        PAD_CTL_DSE_80ohm |     \
 100                        PAD_CTL_SRE_FAST  |     \
 101                        PAD_CTL_HYS)
 102
 103static iomux_v3_cfg_t const usdhc3_pads[] = {
 104        MX6_PAD_SD3_CLK__SD3_CLK        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 105        MX6_PAD_SD3_CMD__SD3_CMD        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 106        MX6_PAD_SD3_DAT0__SD3_DATA0     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 107        MX6_PAD_SD3_DAT1__SD3_DATA1     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 108        MX6_PAD_SD3_DAT2__SD3_DATA2     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 109        MX6_PAD_SD3_DAT3__SD3_DATA3     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 110};
 111
 112static iomux_v3_cfg_t const usdhc4_pads[] = {
 113        MX6_PAD_SD4_CLK__SD4_CLK        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 114        MX6_PAD_SD4_CMD__SD4_CMD        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 115        MX6_PAD_SD4_DAT0__SD4_DATA0     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 116        MX6_PAD_SD4_DAT1__SD4_DATA1     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 117        MX6_PAD_SD4_DAT2__SD4_DATA2     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 118        MX6_PAD_SD4_DAT3__SD4_DATA3     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 119};
 120
 121void seco_mx6_setup_usdhc_iomux(int id)
 122{
 123        switch (id) {
 124        case 3:
 125                imx_iomux_v3_setup_multiple_pads(usdhc3_pads,
 126                                                 ARRAY_SIZE(usdhc3_pads));
 127                break;
 128
 129        case 4:
 130                imx_iomux_v3_setup_multiple_pads(usdhc4_pads,
 131                                                 ARRAY_SIZE(usdhc4_pads));
 132                break;
 133
 134        default:
 135                printf("Warning: invalid usdhc id (%d)\n", id);
 136                break;
 137        }
 138}
 139