board/samsung/arndale/arndale.c

   1 /*
   2  * Copyright (C) 2013 Samsung Electronics
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <usb.h>
   9 #include <asm/gpio.h>
  10 #include <asm/arch/pinmux.h>
  11 #include <asm/arch/dwmmc.h>
  12 #include <asm/arch/power.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 #ifdef CONFIG_USB_EHCI_EXYNOS
  17 int board_usb_init(int index, enum usb_init_type init)
  18 {
  19         /* Configure gpios for usb 3503 hub:
  20          * disconnect, toggle reset and connect
  21          */
  22         gpio_request(EXYNOS5_GPIO_D17, "usb_connect");
  23         gpio_request(EXYNOS5_GPIO_X35, "usb_reset");
  24         gpio_direction_output(EXYNOS5_GPIO_D17, 0);
  25         gpio_direction_output(EXYNOS5_GPIO_X35, 0);
  26
  27         gpio_direction_output(EXYNOS5_GPIO_X35, 1);
  28         gpio_direction_output(EXYNOS5_GPIO_D17, 1);
  29
  30         return 0;
  31 }
  32 #endif
  33
  34 int board_init(void)
  35 {
  36         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
  37         return 0;
  38 }
  39
  40 int dram_init(void)
  41 {
  42         int i;
  43         u32 addr;
  44
  45         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
  46                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
  47                 gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
  48         }
  49         return 0;
  50 }
  51
  52 int power_init_board(void)
  53 {
  54         set_ps_hold_ctrl();
  55         return 0;
  56 }
  57
  58 int dram_init_banksize(void)
  59 {
  60         int i;
  61         u32 addr, size;
  62
  63         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
  64                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
  65                 size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);
  66
  67                 gd->bd->bi_dram[i].start = addr;
  68                 gd->bd->bi_dram[i].size = size;
  69         }
  70
  71         return 0;
  72 }
  73
  74 #ifdef CONFIG_GENERIC_MMC
  75 int board_mmc_init(bd_t *bis)
  76 {
  77         int ret;
  78         /* dwmmc initializattion for available channels */
  79         ret = exynos_dwmmc_init(gd->fdt_blob);
  80         if (ret)
  81                 debug("dwmmc init failed\n");
  82
  83         return ret;
  84 }
  85 #endif
  86
  87 static int board_uart_init(void)
  88 {
  89         int err = 0, uart_id;
  90
  91         for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
  92                 err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
  93                 if (err) {
  94                         debug("UART%d not configured\n",
  95                               (uart_id - PERIPH_ID_UART0));
  96                         return err;
  97                 }
  98         }
  99         return err;
 100 }
 101
 102 #ifdef CONFIG_BOARD_EARLY_INIT_F
 103 int board_early_init_f(void)
 104 {
 105         int err;
 106
 107         err = board_uart_init();
 108         if (err) {
 109                 debug("UART init failed\n");
 110                 return err;
 111         }
 112         return err;
 113 }
 114 #endif
 115
 116 #ifdef CONFIG_DISPLAY_BOARDINFO
 117 int checkboard(void)
 118 {
 119         printf("\nBoard: Arndale\n");
 120
 121         return 0;
 122 }
 123 #endif
 124
 125 #ifdef CONFIG_S5P_PA_SYSRAM
 126 void smp_set_core_boot_addr(unsigned long addr, int corenr)
 127 {
 128         writel(addr, CONFIG_S5P_PA_SYSRAM);
 129
 130         /* make sure this write is really executed */
 131         __asm__ volatile ("dsb\n");
 132 }
 133 #endif