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https://github.com/u-boot/u-boot.git
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fc37a73e66
This returns a devicetree and updates a parameter with an error code. Swap it, since this fits better with the way U-Boot normally works. It also (more easily) allows leaving the existing pointer unchanged. No yaks were harmed in this change, but there is a very small code-size reduction. For sifive, the OF_BOARD option must be set for the function to be called, so there is no point in checking it again. Also OF_SEPARATE is defined always. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Matthias Brugger <mbrugger@suse.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> [trini: Update total_compute] Signed-off-by: Tom Rini <trini@konsulko.com>
38 lines
907 B
C
38 lines
907 B
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright (C) 2019, STMicroelectronics - All Rights Reserved
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*/
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#define LOG_CATEGORY LOGC_ARCH
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#include <config.h>
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#include <errno.h>
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#include <log.h>
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#include <linux/libfdt.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/sections.h>
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#include <asm/system.h>
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/*
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* Use the saved FDT address provided by TF-A at boot time (NT_FW_CONFIG =
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* Non Trusted Firmware configuration file) when the pointer is valid
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*/
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int board_fdt_blob_setup(void **fdtp)
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{
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unsigned long nt_fw_dtb = get_stm32mp_bl2_dtb();
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log_debug("%s: nt_fw_dtb=%lx\n", __func__, nt_fw_dtb);
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/* use external device tree only if address is valid */
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if (nt_fw_dtb < STM32_DDR_BASE ||
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fdt_magic(nt_fw_dtb) != FDT_MAGIC) {
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log_debug("DTB not found.\n");
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log_debug("fall back to builtin DTB, %p\n", _end);
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return -EEXIST;
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}
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*fdtp = (void *)nt_fw_dtb;
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return 0;
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}
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