mirror of
https://github.com/brain-hackers/u-boot-brain
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d85e8914b3
Enable SPL support for at91sam9x5ek board. Now, it supports boot up from NAND flash and SPI flash. Signed-off-by: Bo Shen <voice.shen@atmel.com>
51 lines
945 B
C
51 lines
945 B
C
/*
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* Copyright (C) 2013 Atmel Corporation
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* Bo Shen <voice.shen@atmel.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/at91_wdt.h>
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#include <asm/arch/clk.h>
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#include <spl.h>
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#if defined(CONFIG_AT91SAM9_WATCHDOG)
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void at91_disable_wdt(void) { }
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#else
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void at91_disable_wdt(void)
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{
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struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT;
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writel(AT91_WDT_MR_WDDIS, &wdt->mr);
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}
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#endif
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u32 spl_boot_device(void)
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{
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#ifdef CONFIG_SYS_USE_MMC
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return BOOT_DEVICE_MMC1;
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#elif CONFIG_SYS_USE_NANDFLASH
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return BOOT_DEVICE_NAND;
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#elif CONFIG_SYS_USE_SERIALFLASH || CONFIG_SYS_USE_SPIFLASH
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return BOOT_DEVICE_SPI;
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#endif
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return BOOT_DEVICE_NONE;
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}
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u32 spl_boot_mode(void)
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{
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switch (spl_boot_device()) {
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#ifdef CONFIG_SYS_USE_MMC
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case BOOT_DEVICE_MMC1:
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return MMCSD_MODE_FS;
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break;
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#endif
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case BOOT_DEVICE_NONE:
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default:
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hang();
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}
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}
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