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/acpi.c | 60 ++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/mainboard/emulation/qemu-sbsa/acpi.c (limited to 'src/mainboard/emulation/qemu-sbsa/acpi.c') diff --git a/src/mainboard/emulation/qemu-sbsa/acpi.c b/src/mainboard/emulation/qemu-sbsa/acpi.c new file mode 100644 index 0000000000..1dae24277f --- /dev/null +++ b/src/mainboard/emulation/qemu-sbsa/acpi.c @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include + + +void acpi_fill_fadt(acpi_fadt_t *fadt) +{ + fadt->ARM_boot_arch |= ACPI_FADT_ARM_PSCI_COMPLIANT; +} + +unsigned long acpi_fill_madt(unsigned long current) +{ + return current; +} + +uintptr_t platform_get_gicd_base(void) +{ + return SBSA_GIC_DIST; +} + +uintptr_t platform_get_gicr_base(void) +{ + return SBSA_GIC_REDIST; +} + +#define SEC_EL1_TIMER_GISV 0x1d +#define NONSEC_EL1_TIMER_GSIV 0x1e +#define VIRTUAL_TIMER_GSIV 0x1b +#define NONSEC_EL2_TIMER_GSIV 0x1a + +#define SBSA_TIMER_FLAGS (ACPI_GTDT_INTERRUPT_POLARITY | ACPI_GTDT_ALWAYS_ON) + +void acpi_soc_fill_gtdt(acpi_gtdt_t *gtdt) +{ + /* This value is optional if the system implements EL3 (Security + Extensions). If not provided, this field must be 0xFFFFFFFFFFFFFFFF. */ + gtdt->counter_block_address = UINT64_MAX; + gtdt->secure_el1_interrupt = SEC_EL1_TIMER_GISV; + gtdt->secure_el1_flags = SBSA_TIMER_FLAGS; + gtdt->non_secure_el1_interrupt = NONSEC_EL1_TIMER_GSIV; + gtdt->non_secure_el1_flags = SBSA_TIMER_FLAGS; + gtdt->virtual_timer_interrupt = VIRTUAL_TIMER_GSIV; + gtdt->virtual_timer_flags = SBSA_TIMER_FLAGS; + gtdt->non_secure_el2_interrupt = NONSEC_EL2_TIMER_GSIV; + gtdt->non_secure_el2_flags = SBSA_TIMER_FLAGS; + /* This value is optional if the system implements EL3 + (Security Extensions). If not provided, this field must be + 0xFFFFFFFFFFFFFFF. */ + gtdt->counter_read_block_address = UINT64_MAX; +} + +#define WD_TIMER_GSIV 0x30 + +unsigned long acpi_soc_gtdt_add_timers(uint32_t *count, unsigned long current) +{ + (*count)++; + return acpi_gtdt_add_watchdog(current, SBSA_GWDT_REFRESH, SBSA_GWDT_CONTROL, + WD_TIMER_GSIV, 0); +} -- cgit v1.2.3