board/technexion/pico-imx6ul/pico-imx6ul.c

   1 /*
   2  * Copyright (C) 2015 Technexion Ltd.
   3  *
   4  * Author: Richard Hu <richard.hu@technexion.com>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <asm/arch/clock.h>
  10 #include <asm/arch/iomux.h>
  11 #include <asm/arch/imx-regs.h>
  12 #include <asm/arch/crm_regs.h>
  13 #include <asm/arch/mx6-pins.h>
  14 #include <asm/arch/sys_proto.h>
  15 #include <asm/gpio.h>
  16 #include <asm/imx-common/iomux-v3.h>
  17 #include <asm/io.h>
  18 #include <common.h>
  19 #include <fsl_esdhc.h>
  20 #include <linux/sizes.h>
  21 #include <usb.h>
  22
  23 DECLARE_GLOBAL_DATA_PTR;
  24
  25 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |             \
  26         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  27         PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  28
  29 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |             \
  30         PAD_CTL_PUS_22K_UP  | PAD_CTL_SPEED_LOW |               \
  31         PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  32
  33 #define OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |            \
  34         PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |               \
  35         PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  36
  37 int dram_init(void)
  38 {
  39         gd->ram_size = imx_ddr_size();
  40
  41         return 0;
  42 }
  43
  44 static iomux_v3_cfg_t const uart6_pads[] = {
  45         MX6_PAD_CSI_MCLK__UART6_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  46         MX6_PAD_CSI_PIXCLK__UART6_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  47 };
  48
  49 static iomux_v3_cfg_t const usdhc1_pads[] = {
  50         MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  51         MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  52         MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  53         MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  54         MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  55         MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  56         MX6_PAD_NAND_READY_B__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  57         MX6_PAD_NAND_CE0_B__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  58         MX6_PAD_NAND_CE1_B__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  59         MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  60 };
  61
  62 static iomux_v3_cfg_t const usb_otg_pad[] = {
  63         MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL),
  64 };
  65
  66 static void setup_iomux_uart(void)
  67 {
  68         imx_iomux_v3_setup_multiple_pads(uart6_pads, ARRAY_SIZE(uart6_pads));
  69 }
  70
  71 static void setup_usb(void)
  72 {
  73         imx_iomux_v3_setup_multiple_pads(usb_otg_pad, ARRAY_SIZE(usb_otg_pad));
  74 }
  75
  76 static struct fsl_esdhc_cfg usdhc_cfg[1] = {
  77         {USDHC1_BASE_ADDR},
  78 };
  79
  80 int board_mmc_getcd(struct mmc *mmc)
  81 {
  82         return 1;
  83 }
  84
  85 int board_mmc_init(bd_t *bis)
  86 {
  87         imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
  88         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
  89         return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
  90 }
  91
  92 int board_early_init_f(void)
  93 {
  94         setup_iomux_uart();
  95
  96         return 0;
  97 }
  98
  99 int board_usb_phy_mode(int port)
 100 {
 101         return USB_INIT_DEVICE;
 102 }
 103
 104 int board_init(void)
 105 {
 106         /* Address of boot parameters */
 107         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 108
 109         setup_usb();
 110
 111         return 0;
 112 }
 113
 114 int checkboard(void)
 115 {
 116         puts("Board: PICO-IMX6UL-EMMC\n");
 117
 118         return 0;
 119 }