mirror of
https://github.com/brain-hackers/u-boot-brain
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d7e269cfbd
SPL is using ps7_init.c/h files which are generated from design tools which have to be copied to boards/xilinx/zynq folder before compilation. BSS section is moved to SDRAM because fat support requires more space than SRAM size. Added: - MMC and QSPI support - Boot OS directly from SPL - Enable SPL command Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@ti.com>
70 lines
1.1 KiB
C
70 lines
1.1 KiB
C
/*
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* (C) Copyright 2014 Xilinx, Inc. Michal Simek
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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 <spl.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/spl.h>
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#include <asm/arch/sys_proto.h>
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DECLARE_GLOBAL_DATA_PTR;
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void board_init_f(ulong dummy)
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{
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ps7_init();
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/* Clear the BSS. */
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memset(__bss_start, 0, __bss_end - __bss_start);
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/* Set global data pointer. */
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gd = &gdata;
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preloader_console_init();
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arch_cpu_init();
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board_init_r(NULL, 0);
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}
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u32 spl_boot_device(void)
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{
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u32 mode;
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switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
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#ifdef CONFIG_SPL_SPI_SUPPORT
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case ZYNQ_BM_QSPI:
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puts("qspi boot\n");
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mode = BOOT_DEVICE_SPI;
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break;
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#endif
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#ifdef CONFIG_SPL_MMC_SUPPORT
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case ZYNQ_BM_SD:
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puts("mmc boot\n");
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mode = BOOT_DEVICE_MMC1;
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break;
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#endif
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default:
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puts("Unsupported boot mode selected\n");
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hang();
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}
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return mode;
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}
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#ifdef CONFIG_SPL_MMC_SUPPORT
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u32 spl_boot_mode(void)
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{
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return MMCSD_MODE_FAT;
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}
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#endif
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#ifdef CONFIG_SPL_OS_BOOT
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int spl_start_uboot(void)
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{
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/* boot linux */
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return 0;
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}
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#endif
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