mirror of
https://github.com/brain-hackers/u-boot-brain
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![Simon Glass](/assets/img/avatar_default.png)
This provides a way of passing information to Linux without requiring the full ACPI horror. Provide a rudimentary implementation sufficient to be recognised and parsed by Linux. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
36 lines
688 B
C
36 lines
688 B
C
/*
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* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.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/sfi.h>
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#include <asm/tables.h>
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u8 table_compute_checksum(void *v, int len)
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{
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u8 *bytes = v;
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u8 checksum = 0;
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int i;
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for (i = 0; i < len; i++)
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checksum -= bytes[i];
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return checksum;
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}
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void write_tables(void)
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{
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u32 __maybe_unused rom_table_end = ROM_TABLE_ADDR;
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#ifdef CONFIG_GENERATE_PIRQ_TABLE
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rom_table_end = write_pirq_routing_table(rom_table_end);
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rom_table_end = ALIGN(rom_table_end, 1024);
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#endif
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#ifdef CONFIG_GENERATE_SFI_TABLE
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rom_table_end = write_sfi_table(rom_table_end);
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rom_table_end = ALIGN(rom_table_end, 1024);
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#endif
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}
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