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 <env.h>
   8 #include <errno.h>
   9 #include <init.h>
  10 #include <asm/mach-imx/iomux-v3.h>
  11 #include <asm-generic/gpio.h>
  12 #include <asm/arch/imx8mp_pins.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <asm/mach-imx/gpio.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 #define UART_PAD_CTRL   (PAD_CTL_DSE6 | PAD_CTL_FSEL1)
  19 #define WDOG_PAD_CTRL   (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)
  20
  21 static iomux_v3_cfg_t const uart_pads[] = {
  22         MX8MP_PAD_UART2_RXD__UART2_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  23         MX8MP_PAD_UART2_TXD__UART2_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  24 };
  25
  26 static iomux_v3_cfg_t const wdog_pads[] = {
  27         MX8MP_PAD_GPIO1_IO02__WDOG1_WDOG_B  | MUX_PAD_CTRL(WDOG_PAD_CTRL),
  28 };
  29
  30 int board_early_init_f(void)
  31 {
  32         struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
  33
  34         imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
  35
  36         set_wdog_reset(wdog);
  37
  38         imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
  39
  40         return 0;
  41 }
  42
  43 int dram_init(void)
  44 {
  45         /* rom_pointer[1] contains the size of TEE occupies */
  46         if (rom_pointer[1])
  47                 gd->ram_size = PHYS_SDRAM_SIZE - rom_pointer[1];
  48         else
  49                 gd->ram_size = PHYS_SDRAM_SIZE;
  50
  51 #if CONFIG_NR_DRAM_BANKS > 1
  52         gd->ram_size += PHYS_SDRAM_2_SIZE;
  53 #endif
  54
  55         return 0;
  56 }
  57
  58 int dram_init_banksize(void)
  59 {
  60         gd->bd->bi_dram[0].start = PHYS_SDRAM;
  61         if (rom_pointer[1])
  62
  63                 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE - rom_pointer[1];
  64         else
  65                 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
  66
  67 #if CONFIG_NR_DRAM_BANKS > 1
  68         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  69         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
  70 #endif
  71
  72         return 0;
  73 }
  74
  75 phys_size_t get_effective_memsize(void)
  76 {
  77         if (rom_pointer[1])
  78                 return (PHYS_SDRAM_SIZE - rom_pointer[1]);
  79         else
  80                 return PHYS_SDRAM_SIZE;
  81 }
  82
  83 int board_init(void)
  84 {
  85         return 0;
  86 }
  87
  88 int board_late_init(void)
  89 {
  90 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
  91         env_set("board_name", "EVK");
  92         env_set("board_rev", "iMX8MP");
  93 #endif
  94
  95         return 0;
  96 }