From ad83eb1ee6bb833783c4b870c86413978fb5d4ba Mon Sep 17 00:00:00 2001 From: David Milosevic Date: Thu, 16 Nov 2023 05:11:18 +0100 Subject: mainboard/emulation/qemu-sbsa: Add qemu-sbsa board Add coreboot support for qemu's sbsa-ref (Server Base System Architecture) machine (-m sbsa-ref). The qemu-sbsa coreboot port runs on EL2 and is the payload of the EL3 firmware (Arm Trusted Firmware). Note that, coreboot expects a pointer to the FDT in x0. Make sure to configure TF-A to handoff the FDT pointer. Example qemu commandline: qemu-system-aarch64 -nographic -m 2048 -M sbsa-ref \ -pflash \ -pflash The Documentation can be found here: Documentation/mainboard/emulation/qemu-sbsa.md Change-Id: Iacc9aaf065e0d153336cbef9a9b5b46a9eb24a53 Signed-off-by: David Milosevic Reviewed-on: https://review.coreboot.org/c/coreboot/+/79086 Tested-by: build bot (Jenkins) Reviewed-by: Lean Sheng Tan --- src/mainboard/emulation/qemu-sbsa/bootblock.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 src/mainboard/emulation/qemu-sbsa/bootblock.c (limited to 'src/mainboard/emulation/qemu-sbsa/bootblock.c') diff --git a/src/mainboard/emulation/qemu-sbsa/bootblock.c b/src/mainboard/emulation/qemu-sbsa/bootblock.c new file mode 100644 index 0000000000..b38df6ec71 --- /dev/null +++ b/src/mainboard/emulation/qemu-sbsa/bootblock.c @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include + +void bootblock_mainboard_init(void) +{ + mmu_init(); + + /* Everything below DRAM is device memory */ + mmu_config_range((void *)0, (uintptr_t)_dram, MA_DEV | MA_RW); + /* Set a dummy value for DRAM. ramstage should update the mapping. */ + mmu_config_range(_dram, ((size_t) CONFIG_DRAM_SIZE_MB) * MiB, MA_MEM | MA_RW); + + mmu_config_range(_ttb, REGION_SIZE(ttb), MA_MEM | MA_S | MA_RW); + mmu_config_range(_bootblock, REGION_SIZE(bootblock), MA_MEM | MA_S | MA_RW); + mmu_config_range(_ramstage, REGION_SIZE(ramstage), MA_MEM | MA_S | MA_RW); + mmu_config_range((void *)CONFIG_ECAM_MMCONF_BASE_ADDRESS, CONFIG_ECAM_MMCONF_LENGTH, + MA_DEV | MA_RW); + mmu_enable(); +} -- cgit v1.2.3