diff --git a/changelog.yaml b/changelog.yaml index 6dbb9b20d..c969b2c56 100644 --- a/changelog.yaml +++ b/changelog.yaml @@ -877,6 +877,9 @@ subsections: deprecated: - drivers/tzc380 + - title: SBSA + scope: sbsa + - title: Marvell scope: marvell-drivers diff --git a/drivers/arm/sbsa/sbsa.c b/drivers/arm/sbsa/sbsa.c index 79c6f2620..a88e20c04 100644 --- a/drivers/arm/sbsa/sbsa.c +++ b/drivers/arm/sbsa/sbsa.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2019, ARM Limited. All rights reserved. + * Copyright (c) 2019-2023, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -40,3 +40,9 @@ void sbsa_wdog_stop(uintptr_t base) { mmio_write_32(base + SBSA_WDOG_WCS_OFFSET, (0x0)); } + +/* Refresh the secure watchdog timer explicitly */ +void sbsa_wdog_refresh(uintptr_t refresh_base) +{ + mmio_write_32(refresh_base + SBSA_WDOG_WRR_OFFSET, SBSA_WDOG_WRR_REFRESH); +} diff --git a/include/drivers/arm/sbsa.h b/include/drivers/arm/sbsa.h index 9403634f7..4ca71942e 100644 --- a/include/drivers/arm/sbsa.h +++ b/include/drivers/arm/sbsa.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2019, ARM Limited. All rights reserved. + * Copyright (c) 2019-2023, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -9,7 +9,12 @@ #include -/* Register Offsets */ +/* SBSA Secure Watchdog Register Offsets */ +/* Refresh frame */ +#define SBSA_WDOG_WRR_OFFSET UL(0x000) +#define SBSA_WDOG_WRR_REFRESH UL(0x1) + +/* Control and status frame */ #define SBSA_WDOG_WCS_OFFSET UL(0x000) #define SBSA_WDOG_WOR_LOW_OFFSET UL(0x008) #define SBSA_WDOG_WOR_HIGH_OFFSET UL(0x00C) @@ -20,5 +25,6 @@ void sbsa_wdog_start(uintptr_t base, uint64_t ms); void sbsa_wdog_stop(uintptr_t base); +void sbsa_wdog_refresh(uintptr_t refresh_base); #endif /* SBSA_H */ diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h index ffbd4ca13..e8461f5a2 100644 --- a/include/plat/arm/common/plat_arm.h +++ b/include/plat/arm/common/plat_arm.h @@ -364,6 +364,7 @@ extern const unsigned int arm_pm_idle_states[]; /* secure watchdog */ void plat_arm_secure_wdt_start(void); void plat_arm_secure_wdt_stop(void); +void plat_arm_secure_wdt_refresh(void); /* Get SOC-ID of ARM platform */ uint32_t plat_arm_get_soc_id(void); diff --git a/include/plat/arm/css/common/css_def.h b/include/plat/arm/css/common/css_def.h index dde174c37..f87f857c5 100644 --- a/include/plat/arm/css/common/css_def.h +++ b/include/plat/arm/css/common/css_def.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -52,18 +52,21 @@ * terminology. On a GICv2 system or mode, the interrupts will be treated as * Group 0 interrupts. */ -#define CSS_G1S_IRQ_PROPS(grp) \ +#define CSS_G1S_INT_PROPS(grp) \ INTR_PROP_DESC(CSS_IRQ_MHU, GIC_HIGHEST_SEC_PRIORITY, grp, \ GIC_INTR_CFG_LEVEL), \ INTR_PROP_DESC(CSS_IRQ_GPU_SMMU_0, GIC_HIGHEST_SEC_PRIORITY, grp, \ GIC_INTR_CFG_LEVEL), \ INTR_PROP_DESC(CSS_IRQ_TZC, GIC_HIGHEST_SEC_PRIORITY, grp, \ GIC_INTR_CFG_LEVEL), \ - INTR_PROP_DESC(CSS_IRQ_TZ_WDOG, GIC_HIGHEST_SEC_PRIORITY, grp, \ - GIC_INTR_CFG_LEVEL), \ INTR_PROP_DESC(CSS_IRQ_SEC_SYS_TIMER, GIC_HIGHEST_SEC_PRIORITY, grp, \ GIC_INTR_CFG_LEVEL) +#define CSS_G1S_IRQ_PROPS(grp) \ + CSS_G1S_INT_PROPS(grp), \ + INTR_PROP_DESC(CSS_IRQ_TZ_WDOG, GIC_HIGHEST_SEC_PRIORITY, grp, \ + GIC_INTR_CFG_LEVEL) + #if CSS_USE_SCMI_SDS_DRIVER /* Memory region for shared data storage */ #define PLAT_ARM_SDS_MEM_BASE ARM_SHARED_RAM_BASE diff --git a/plat/arm/board/tc/include/platform_def.h b/plat/arm/board/tc/include/platform_def.h index eea1be6ba..59fff6e2a 100644 --- a/plat/arm/board/tc/include/platform_def.h +++ b/plat/arm/board/tc/include/platform_def.h @@ -212,8 +212,11 @@ #define PLAT_ARM_DRAM2_SIZE ULL(0x180000000) #define PLAT_ARM_DRAM2_END (PLAT_ARM_DRAM2_BASE + PLAT_ARM_DRAM2_SIZE - 1ULL) -#define PLAT_ARM_G1S_IRQ_PROPS(grp) CSS_G1S_IRQ_PROPS(grp) -#define PLAT_ARM_G0_IRQ_PROPS(grp) ARM_G0_IRQ_PROPS(grp) +#define PLAT_ARM_G1S_IRQ_PROPS(grp) CSS_G1S_INT_PROPS(grp) +#define PLAT_ARM_G0_IRQ_PROPS(grp) ARM_G0_IRQ_PROPS(grp), \ + INTR_PROP_DESC(SBSA_SECURE_WDOG_INTID, \ + GIC_HIGHEST_SEC_PRIORITY, grp, \ + GIC_INTR_CFG_LEVEL) #define PLAT_ARM_SP_IMAGE_STACK_BASE (PLAT_SP_IMAGE_NS_BUF_BASE + \ PLAT_SP_IMAGE_NS_BUF_SIZE) @@ -229,9 +232,11 @@ #define PLAT_ARM_MEM_PROT_ADDR (V2M_FLASH0_BASE + \ V2M_FLASH0_SIZE - V2M_FLASH_BLOCK_SIZE) -/*Secure Watchdog Constants */ -#define SBSA_SECURE_WDOG_BASE UL(0x2A480000) +/* Secure Watchdog Constants */ +#define SBSA_SECURE_WDOG_CONTROL_BASE UL(0x2A480000) +#define SBSA_SECURE_WDOG_REFRESH_BASE UL(0x2A490000) #define SBSA_SECURE_WDOG_TIMEOUT UL(100) +#define SBSA_SECURE_WDOG_INTID 86 #define PLAT_ARM_SCMI_CHANNEL_COUNT 1 diff --git a/plat/arm/board/tc/platform.mk b/plat/arm/board/tc/platform.mk index 63a923795..c75507a51 100644 --- a/plat/arm/board/tc/platform.mk +++ b/plat/arm/board/tc/platform.mk @@ -118,7 +118,8 @@ BL31_SOURCES += ${INTERCONNECT_SOURCES} \ lib/fconf/fconf_dyn_cfg_getter.c \ drivers/cfi/v2m/v2m_flash.c \ lib/utils/mem_region.c \ - plat/arm/common/arm_nor_psci_mem_protect.c + plat/arm/common/arm_nor_psci_mem_protect.c \ + drivers/arm/sbsa/sbsa.c BL31_SOURCES += ${FDT_WRAPPERS_SOURCES} diff --git a/plat/arm/board/tc/tc_bl31_setup.c b/plat/arm/board/tc/tc_bl31_setup.c index 8ad1d3056..630324fb3 100644 --- a/plat/arm/board/tc/tc_bl31_setup.c +++ b/plat/arm/board/tc/tc_bl31_setup.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -81,3 +82,37 @@ void __init bl31_plat_arch_setup(void) fconf_populate("HW_CONFIG", hw_config_info->config_addr); } + +#if defined(SPD_spmd) && (SPMD_SPM_AT_SEL2 == 1) +void tc_bl31_plat_runtime_setup(void) +{ + arm_bl31_plat_runtime_setup(); + + /* Start secure watchdog timer. */ + plat_arm_secure_wdt_start(); +} + +void bl31_plat_runtime_setup(void) +{ + tc_bl31_plat_runtime_setup(); +} + +/* + * Platform handler for Group0 secure interrupt. + */ +int plat_spmd_handle_group0_interrupt(uint32_t intid) +{ + /* Trusted Watchdog timer is the only source of Group0 interrupt now. */ + if (intid == SBSA_SECURE_WDOG_INTID) { + INFO("Watchdog restarted\n"); + /* Refresh the timer. */ + plat_arm_secure_wdt_refresh(); + + /* Deactivate the corresponding interrupt. */ + plat_ic_end_of_interrupt(intid); + return 0; + } + + return -1; +} +#endif /*defined(SPD_spmd) && (SPMD_SPM_AT_SEL2 == 1)*/ diff --git a/plat/arm/board/tc/tc_plat.c b/plat/arm/board/tc/tc_plat.c index 228f2fab3..766bfb570 100644 --- a/plat/arm/board/tc/tc_plat.c +++ b/plat/arm/board/tc/tc_plat.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2020-2023, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2020-2023, Arm Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -147,10 +147,15 @@ int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size) void plat_arm_secure_wdt_start(void) { - sbsa_wdog_start(SBSA_SECURE_WDOG_BASE, SBSA_SECURE_WDOG_TIMEOUT); + sbsa_wdog_start(SBSA_SECURE_WDOG_CONTROL_BASE, SBSA_SECURE_WDOG_TIMEOUT); } void plat_arm_secure_wdt_stop(void) { - sbsa_wdog_stop(SBSA_SECURE_WDOG_BASE); + sbsa_wdog_stop(SBSA_SECURE_WDOG_CONTROL_BASE); +} + +void plat_arm_secure_wdt_refresh(void) +{ + sbsa_wdog_refresh(SBSA_SECURE_WDOG_REFRESH_BASE); } diff --git a/plat/arm/common/arm_bl31_setup.c b/plat/arm/common/arm_bl31_setup.c index 19efdd32e..8c62a9bb9 100644 --- a/plat/arm/common/arm_bl31_setup.c +++ b/plat/arm/common/arm_bl31_setup.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -43,6 +43,7 @@ CASSERT(BL31_BASE >= ARM_FW_CONFIG_LIMIT, assert_bl31_base_overflows); #pragma weak bl31_platform_setup #pragma weak bl31_plat_arch_setup #pragma weak bl31_plat_get_next_image_ep_info +#pragma weak bl31_plat_runtime_setup #define MAP_BL31_TOTAL MAP_REGION_FLAT( \ BL31_START, \