47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* Copyright (C) 2011 OMICRON electronics GmbH
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*
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* based on drivers/mtd/nand/nand_spl_load.c
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*
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* Copyright (C) 2011
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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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 <spi_flash.h>
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#include <spl.h>
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/*
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* The main entry for SPI booting. It's necessary that SDRAM is already
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* configured and available since this code loads the main U-Boot image
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* from SPI into SDRAM and starts it from there.
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*/
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void spl_spi_load_image(void)
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{
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struct spi_flash *flash;
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struct image_header *header;
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/*
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* Load U-Boot image from SPI flash into RAM
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*/
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flash = spi_flash_probe(CONFIG_SPL_SPI_BUS, CONFIG_SPL_SPI_CS,
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CONFIG_SF_DEFAULT_SPEED, SPI_MODE_3);
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if (!flash) {
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puts("SPI probe failed.\n");
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hang();
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}
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/* use CONFIG_SYS_TEXT_BASE as temporary storage area */
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header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
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/* Load u-boot, mkimage header is 64 bytes. */
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spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40,
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(void *)header);
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spl_parse_image_header(header);
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spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS,
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spl_image.size, (void *)spl_image.load_addr);
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}
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