From 379729b497746da7bdd9d207bc4903bdb4053046 Mon Sep 17 00:00:00 2001 From: Runyang Chen Date: Sat, 26 Oct 2024 15:31:36 +0800 Subject: soc/mediatek/mt8196: Disable irq2axi feature Irq2axi translates wire-based interrupt into message signal interrupt. Since MT8196 uses legacy wire-based interrupt, this feature needs to be disabled. If the interrupt is not handled, it will cause the system fail to boot. TEST=Build pass, check irq2axi_disable log and the interrupt can be correctly handled by checking /proc/interrupts. BUG=b:317009620 Signed-off-by: Runyang Chen Change-Id: I0e89a0ee75e574a4b9e8df0a0f6a5f6e03bba2d6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/84896 Reviewed-by: Yu-Ping Wu Reviewed-by: Yidi Lin Tested-by: build bot (Jenkins) --- src/soc/mediatek/mt8196/Makefile.mk | 1 + src/soc/mediatek/mt8196/include/soc/irq2axi.h | 18 ++++++++++++++++++ src/soc/mediatek/mt8196/irq2axi.c | 18 ++++++++++++++++++ 3 files changed, 37 insertions(+) create mode 100644 src/soc/mediatek/mt8196/include/soc/irq2axi.h create mode 100644 src/soc/mediatek/mt8196/irq2axi.c (limited to 'src/soc/mediatek') diff --git a/src/soc/mediatek/mt8196/Makefile.mk b/src/soc/mediatek/mt8196/Makefile.mk index b73f213d6c..6b29e73fe7 100644 --- a/src/soc/mediatek/mt8196/Makefile.mk +++ b/src/soc/mediatek/mt8196/Makefile.mk @@ -19,6 +19,7 @@ bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c romstage-y += ../common/cbmem.c romstage-$(CONFIG_PCI) += ../common/early_init.c ../common/pcie.c romstage-y += emi.c +romstage-y += irq2axi.c romstage-y += l2c_ops.c romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c diff --git a/src/soc/mediatek/mt8196/include/soc/irq2axi.h b/src/soc/mediatek/mt8196/include/soc/irq2axi.h new file mode 100644 index 0000000000..22071e5098 --- /dev/null +++ b/src/soc/mediatek/mt8196/include/soc/irq2axi.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef SOC_MEDIATEK_MT8196_IRQ2AXI_H +#define SOC_MEDIATEK_MT8196_IRQ2AXI_H + +#define IRQ2AXI_BASE 0x14413000 +#define IRQ2AXI_CFG1 (IRQ2AXI_BASE + 0x0004) + +#define APIFR_AO_IO_INTX_SEC_REG 0x101C9000 +#define CIRQ_AXI_MODE (APIFR_AO_IO_INTX_SEC_REG + 0x900) +#define CIRQ_AXI_MODE_LEGACY 0x3 + +#define MCUSYS_ACK_REG 0x0C00FFEC +#define MCUSYS_ACK_CLR 0x1 + +void irq2axi_disable(void); + +#endif /* SOC_MEDIATEK_MT8196_IRQ2AXI_H */ diff --git a/src/soc/mediatek/mt8196/irq2axi.c b/src/soc/mediatek/mt8196/irq2axi.c new file mode 100644 index 0000000000..e0250a97f2 --- /dev/null +++ b/src/soc/mediatek/mt8196/irq2axi.c @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include + +void irq2axi_disable(void) +{ + printk(BIOS_DEBUG, "%s\n", __func__); + /* disable IRQ2AXI */ + write32p(IRQ2AXI_CFG1, 0x0); + + /* disable mcusys ack */ + clrbits32p(MCUSYS_ACK_REG, MCUSYS_ACK_CLR); + + /* switch to legacy channel */ + clrbits32p(CIRQ_AXI_MODE, CIRQ_AXI_MODE_LEGACY); +} -- cgit v1.2.3