1 /* 2 * Copyright (C) 2013 Atmel Corporation 3 * Bo Shen <voice.shen@atmel.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <asm/io.h> 10 #include <asm/arch/at91_common.h> 11 #include <asm/arch/at91_wdt.h> 12 #include <asm/arch/clk.h> 13 #include <spl.h> 14 15 #if defined(CONFIG_AT91SAM9_WATCHDOG) 16 void at91_disable_wdt(void) { } 17 #else 18 void at91_disable_wdt(void) 19 { 20 struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT; 21 22 writel(AT91_WDT_MR_WDDIS, &wdt->mr); 23 } 24 #endif 25 26 u32 spl_boot_device(void) 27 { 28 #ifdef CONFIG_SYS_USE_MMC 29 return BOOT_DEVICE_MMC1; 30 #elif CONFIG_SYS_USE_NANDFLASH 31 return BOOT_DEVICE_NAND; 32 #elif CONFIG_SYS_USE_SERIALFLASH || CONFIG_SYS_USE_SPIFLASH 33 return BOOT_DEVICE_SPI; 34 #endif 35 return BOOT_DEVICE_NONE; 36 } 37 38 u32 spl_boot_mode(void) 39 { 40 switch (spl_boot_device()) { 41 #ifdef CONFIG_SYS_USE_MMC 42 case BOOT_DEVICE_MMC1: 43 return MMCSD_MODE_FS; 44 break; 45 #endif 46 case BOOT_DEVICE_NONE: 47 default: 48 hang(); 49 } 50 } 51