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