* Move armv7 RAM dection to a common place * Enable it for all emulated platforms * Use 32bit probe values and restore memory even on failure * Use the new logic on the following boards: ** qemu-armv7 ** qemu-riscv Tested on qemu-system-riscv: Fixes kernel panic due to wrong memory limits reported. Change-Id: I37386c6a95bfc3b7b25aeae32c6e14cff9913513 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33934 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
22 lines
847 B
C
22 lines
847 B
C
/*
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* This file is part of the coreboot project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/*
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* Probe an area if it's read/writable.
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* Primary use case is the detection of DRAM amount on emulators.
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*
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* @param dram_start Physical address of DRAM start
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* @param probe_size Maximum size in MiB to probe for
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* @return The detected DRAM size in MiB
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*/
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size_t probe_ramsize(const uintptr_t dram_start, const size_t probe_size);
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