board/freescale/mx7ulp_evk/mx7ulp_evk.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 Freescale Semiconductor, Inc.
   4  */
   5
   6 #include <common.h>
   7 #include <asm/io.h>
   8 #include <asm/arch/sys_proto.h>
   9 #include <asm/arch/mx7ulp-pins.h>
  10 #include <asm/arch/iomux.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 #define UART_PAD_CTRL   (PAD_CTL_PUS_UP)
  15
  16 int dram_init(void)
  17 {
  18         gd->ram_size = PHYS_SDRAM_SIZE;
  19
  20         return 0;
  21 }
  22
  23 static iomux_cfg_t const lpuart4_pads[] = {
  24         MX7ULP_PAD_PTC3__LPUART4_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  25         MX7ULP_PAD_PTC2__LPUART4_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  26 };
  27
  28 static void setup_iomux_uart(void)
  29 {
  30         mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
  31                                          ARRAY_SIZE(lpuart4_pads));
  32 }
  33
  34 int board_early_init_f(void)
  35 {
  36         setup_iomux_uart();
  37
  38         return 0;
  39 }
  40
  41 int board_init(void)
  42 {
  43         /* address of boot parameters */
  44         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
  45
  46         return 0;
  47 }