board/freescale/imx8mp_evk/imx8mp_evk.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2019 NXP
   4  */
   5
   6 #include <common.h>
   7 #include <errno.h>
   8 #include <asm/mach-imx/iomux-v3.h>
   9 #include <asm-generic/gpio.h>
  10 #include <asm/arch/imx8mp_pins.h>
  11 #include <asm/arch/sys_proto.h>
  12 #include <asm/mach-imx/gpio.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 #define UART_PAD_CTRL   (PAD_CTL_DSE6 | PAD_CTL_FSEL1)
  17 #define WDOG_PAD_CTRL   (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)
  18
  19 static iomux_v3_cfg_t const uart_pads[] = {
  20         MX8MP_PAD_UART2_RXD__UART2_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  21         MX8MP_PAD_UART2_TXD__UART2_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  22 };
  23
  24 static iomux_v3_cfg_t const wdog_pads[] = {
  25         MX8MP_PAD_GPIO1_IO02__WDOG1_WDOG_B  | MUX_PAD_CTRL(WDOG_PAD_CTRL),
  26 };
  27
  28 int board_early_init_f(void)
  29 {
  30         struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
  31
  32         imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
  33
  34         set_wdog_reset(wdog);
  35
  36         imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
  37
  38         return 0;
  39 }
  40
  41 int dram_init(void)
  42 {
  43         /* rom_pointer[1] contains the size of TEE occupies */
  44         if (rom_pointer[1])
  45                 gd->ram_size = PHYS_SDRAM_SIZE - rom_pointer[1];
  46         else
  47                 gd->ram_size = PHYS_SDRAM_SIZE;
  48
  49 #if CONFIG_NR_DRAM_BANKS > 1
  50         gd->ram_size += PHYS_SDRAM_2_SIZE;
  51 #endif
  52
  53         return 0;
  54 }
  55
  56 int dram_init_banksize(void)
  57 {
  58         gd->bd->bi_dram[0].start = PHYS_SDRAM;
  59         if (rom_pointer[1])
  60
  61                 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE - rom_pointer[1];
  62         else
  63                 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
  64
  65 #if CONFIG_NR_DRAM_BANKS > 1
  66         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  67         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
  68 #endif
  69
  70         return 0;
  71 }
  72
  73 phys_size_t get_effective_memsize(void)
  74 {
  75         if (rom_pointer[1])
  76                 return (PHYS_SDRAM_SIZE - rom_pointer[1]);
  77         else
  78                 return PHYS_SDRAM_SIZE;
  79 }
  80
  81 int board_init(void)
  82 {
  83         return 0;
  84 }
  85
  86 int board_late_init(void)
  87 {
  88 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
  89         env_set("board_name", "EVK");
  90         env_set("board_rev", "iMX8MP");
  91 #endif
  92
  93         return 0;
  94 }