board/compulab/cm_fx6/common.c

   1 /*
   2  * Code used by both U-Boot and SPL for Compulab CM-FX6
   3  *
   4  * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
   5  *
   6  * Author: Nikita Kiryanov <nikita@compulab.co.il>
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #include <common.h>
  12 #include <asm/arch/sys_proto.h>
  13 #include <asm/gpio.h>
  14 #include <asm/imx-common/spi.h>
  15 #include <fsl_esdhc.h>
  16 #include "common.h"
  17
  18 DECLARE_GLOBAL_DATA_PTR;
  19
  20 #ifdef CONFIG_FSL_ESDHC
  21 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
  22         PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
  23         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  24
  25 static iomux_v3_cfg_t const usdhc_pads[] = {
  26         IOMUX_PADS(PAD_SD1_CLK__SD1_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  27         IOMUX_PADS(PAD_SD1_CMD__SD1_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  28         IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  29         IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  30         IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  31         IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  32
  33         IOMUX_PADS(PAD_SD2_CLK__SD2_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  34         IOMUX_PADS(PAD_SD2_CMD__SD2_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  35         IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  36         IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  37         IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  38         IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  39
  40         IOMUX_PADS(PAD_SD3_CLK__SD3_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  41         IOMUX_PADS(PAD_SD3_CMD__SD3_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  42         IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  43         IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  44         IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  45         IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  46         IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  47         IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  48         IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  49         IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
  50 };
  51
  52 void cm_fx6_set_usdhc_iomux(void)
  53 {
  54         SETUP_IOMUX_PADS(usdhc_pads);
  55 }
  56
  57 /* CINS bit doesn't work, so always try to access the MMC card */
  58 int board_mmc_getcd(struct mmc *mmc)
  59 {
  60         return 1;
  61 }
  62 #endif
  63
  64 #ifdef CONFIG_MXC_SPI
  65 #define ECSPI_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \
  66                 PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  67
  68 static iomux_v3_cfg_t const ecspi_pads[] = {
  69         IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
  70         IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
  71         IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
  72         IOMUX_PADS(PAD_EIM_EB2__GPIO2_IO30  | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
  73         IOMUX_PADS(PAD_EIM_D19__ECSPI1_SS1  | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
  74 };
  75
  76 void cm_fx6_set_ecspi_iomux(void)
  77 {
  78         SETUP_IOMUX_PADS(ecspi_pads);
  79 }
  80
  81 int board_spi_cs_gpio(unsigned bus, unsigned cs)
  82 {
  83         return (bus == 0 && cs == 0) ? (CM_FX6_ECSPI_BUS0_CS0) : -1;
  84 }
  85 #endif