diff options
Diffstat (limited to 'arch/arm/mach-at91/spl.c')
-rw-r--r-- | arch/arm/mach-at91/spl.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/spl.c b/arch/arm/mach-at91/spl.c new file mode 100644 index 0000000..aaa5eec --- /dev/null +++ b/arch/arm/mach-at91/spl.c @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2013 Atmel Corporation + * Bo Shen <voice.shen@atmel.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_wdt.h> +#include <asm/arch/clk.h> +#include <spl.h> + +#if defined(CONFIG_AT91SAM9_WATCHDOG) +void at91_disable_wdt(void) { } +#else +void at91_disable_wdt(void) +{ + struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT; + + writel(AT91_WDT_MR_WDDIS, &wdt->mr); +} +#endif + +u32 spl_boot_device(void) +{ +#ifdef CONFIG_SYS_USE_MMC + return BOOT_DEVICE_MMC1; +#elif CONFIG_SYS_USE_NANDFLASH + return BOOT_DEVICE_NAND; +#elif CONFIG_SYS_USE_SERIALFLASH + return BOOT_DEVICE_SPI; +#endif + return BOOT_DEVICE_NONE; +} + +u32 spl_boot_mode(void) +{ + switch (spl_boot_device()) { +#ifdef CONFIG_SYS_USE_MMC + case BOOT_DEVICE_MMC1: + return MMCSD_MODE_FS; + break; +#endif + case BOOT_DEVICE_NONE: + default: + hang(); + } +} |