Merge changes from topic "qemu-measured-boot" into integration
* changes:
fix(arm): fix fvp and juno build with USE_ROMLIB option
feat(fdt-wrappers): add function to find or add a sudnode
diff --git a/bl2/bl2_el3.ld.S b/bl2/bl2_el3.ld.S
index 6aa7afd..c95706c 100644
--- a/bl2/bl2_el3.ld.S
+++ b/bl2/bl2_el3.ld.S
@@ -17,12 +17,12 @@
RAM (rwx): ORIGIN = BL2_RW_BASE, LENGTH = BL2_RW_LIMIT - BL2_RW_BASE
#else
RAM (rwx): ORIGIN = BL2_BASE, LENGTH = BL2_LIMIT - BL2_BASE
+#endif
#if SEPARATE_BL2_NOLOAD_REGION
RAM_NOLOAD (rw!a): ORIGIN = BL2_NOLOAD_START, LENGTH = BL2_NOLOAD_LIMIT - BL2_NOLOAD_START
#else
#define RAM_NOLOAD RAM
#endif
-#endif
}
#if !BL2_IN_XIP_MEM
diff --git a/plat/ti/k3/board/lite/include/board_def.h b/plat/ti/k3/board/lite/include/board_def.h
index 18b7f42..fd4e5b1 100644
--- a/plat/ti/k3/board/lite/include/board_def.h
+++ b/plat/ti/k3/board/lite/include/board_def.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020-2022, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -33,7 +33,7 @@
* defined as default for our platform.
*/
#define SEC_SRAM_BASE UL(0x00000000) /* PIE remapped on fly */
-#define SEC_SRAM_SIZE UL(0x0001c000) /* 112k */
+#define SEC_SRAM_SIZE UL(0x00020000) /* 128k */
#define PLAT_MAX_OFF_STATE U(2)
#define PLAT_MAX_RET_STATE U(1)
diff --git a/plat/ti/k3/common/drivers/ti_sci/ti_sci.c b/plat/ti/k3/common/drivers/ti_sci/ti_sci.c
index 2c3313c43..2cbfa3d 100644
--- a/plat/ti/k3/common/drivers/ti_sci/ti_sci.c
+++ b/plat/ti/k3/common/drivers/ti_sci/ti_sci.c
@@ -2,7 +2,7 @@
* Texas Instruments System Control Interface Driver
* Based on Linux and U-Boot implementation
*
- * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -1664,6 +1664,57 @@
}
/**
+ * ti_sci_enter_sleep - Command to initiate system transition into suspend.
+ *
+ * @proc_id: Processor ID.
+ * @mode: Low power mode to enter.
+ * @core_resume_addr: Address that core should be
+ * resumed from after low power transition.
+ *
+ * Return: 0 if all goes well, else appropriate error message
+ */
+int ti_sci_enter_sleep(uint8_t proc_id,
+ uint8_t mode,
+ uint64_t core_resume_addr)
+{
+ struct ti_sci_msg_req_enter_sleep req;
+ struct ti_sci_msg_hdr *hdr;
+ struct k3_sec_proxy_msg tx_message;
+ int ret;
+
+ /* Ensure we have sane transfer size */
+ if (sizeof(req) > TI_SCI_MAX_MESSAGE_SIZE) {
+ return -ERANGE;
+ }
+
+ hdr = (struct ti_sci_msg_hdr *)&req;
+ hdr->seq = ++message_sequence;
+ hdr->type = TI_SCI_MSG_ENTER_SLEEP;
+ hdr->host = TI_SCI_HOST_ID;
+ /* Setup with NORESPONSE flag to keep response queue clean */
+ hdr->flags = TI_SCI_FLAG_REQ_GENERIC_NORESPONSE;
+
+ req.processor_id = proc_id;
+ req.mode = mode;
+ req.core_resume_lo = core_resume_addr & TISCI_ADDR_LOW_MASK;
+ req.core_resume_hi = (core_resume_addr & TISCI_ADDR_HIGH_MASK) >>
+ TISCI_ADDR_HIGH_SHIFT;
+
+ tx_message.buf = (uint8_t *)&req;
+ tx_message.len = sizeof(req);
+
+ /* Send message */
+ ret = k3_sec_proxy_send(SP_HIGH_PRIORITY, &tx_message);
+ if (ret != 0) {
+ ERROR("Message sending failed (%d)\n", ret);
+ return ret;
+ }
+
+ /* Return without waiting for response */
+ return 0;
+}
+
+/**
* ti_sci_init() - Basic initialization
*
* Return: 0 if all goes well, else appropriate error message
diff --git a/plat/ti/k3/common/drivers/ti_sci/ti_sci.h b/plat/ti/k3/common/drivers/ti_sci/ti_sci.h
index c7b09b3..06944a7 100644
--- a/plat/ti/k3/common/drivers/ti_sci/ti_sci.h
+++ b/plat/ti/k3/common/drivers/ti_sci/ti_sci.h
@@ -2,7 +2,7 @@
* Texas Instruments System Control Interface API
* Based on Linux and U-Boot implementation
*
- * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -207,6 +207,22 @@
uint32_t status_flags_1_clr_any_wait);
/**
+ * System Low Power Operations
+ *
+ * - ti_sci_enter_sleep - Command to initiate system transition into suspend.
+ * @proc_id: Processor ID.
+ * @mode: Low power mode to enter.
+ * @core_resume_addr: Address that core should be resumed from
+ * after low power transition.
+ *
+ * NOTE: for all these functions, the following are generic in nature:
+ * Returns 0 for successful request, else returns corresponding error message.
+ */
+int ti_sci_enter_sleep(uint8_t proc_id,
+ uint8_t mode,
+ uint64_t core_resume_addr);
+
+/**
* ti_sci_init() - Basic initialization
*
* Return: 0 if all goes good, else appropriate error message.
diff --git a/plat/ti/k3/common/drivers/ti_sci/ti_sci_protocol.h b/plat/ti/k3/common/drivers/ti_sci/ti_sci_protocol.h
index 310bf45..d220612 100644
--- a/plat/ti/k3/common/drivers/ti_sci/ti_sci_protocol.h
+++ b/plat/ti/k3/common/drivers/ti_sci/ti_sci_protocol.h
@@ -5,7 +5,7 @@
* The system works in a message response protocol
* See: http://processors.wiki.ti.com/index.php/TISCI for details
*
- * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -28,6 +28,9 @@
#define TI_SCI_MSG_GET_DEVICE_STATE 0x0201
#define TI_SCI_MSG_SET_DEVICE_RESETS 0x0202
+/* Low Power Mode Requests */
+#define TI_SCI_MSG_ENTER_SLEEP 0x0301
+
/* Clock requests */
#define TI_SCI_MSG_SET_CLOCK_STATE 0x0100
#define TI_SCI_MSG_GET_CLOCK_STATE 0x0101
@@ -706,4 +709,26 @@
uint32_t status_flags_1_clr_any_wait;
} __packed;
+/**
+ * struct ti_sci_msg_req_enter_sleep - Request for TI_SCI_MSG_ENTER_SLEEP.
+ *
+ * @hdr Generic Header
+ * @mode Low power mode to enter.
+ * @proc_id Processor id to be restored.
+ * @core_resume_lo Low 32-bits of physical pointer to address for core
+ * to begin execution upon resume.
+ * @core_resume_hi High 32-bits of physical pointer to address for core
+ * to begin execution upon resume.
+ *
+ * This message is to be sent after TI_SCI_MSG_PREPARE_SLEEP is sent from OS
+ * and is what actually triggers entry into the specified low power mode.
+ */
+struct ti_sci_msg_req_enter_sleep {
+ struct ti_sci_msg_hdr hdr;
+ uint8_t mode;
+ uint8_t processor_id;
+ uint32_t core_resume_lo;
+ uint32_t core_resume_hi;
+} __packed;
+
#endif /* TI_SCI_PROTOCOL_H */
diff --git a/plat/ti/k3/common/k3_gicv3.c b/plat/ti/k3/common/k3_gicv3.c
index 1932eaa..0199822 100644
--- a/plat/ti/k3/common/k3_gicv3.c
+++ b/plat/ti/k3/common/k3_gicv3.c
@@ -19,6 +19,11 @@
/* The GICv3 driver only needs to be initialized in EL3 */
uintptr_t rdistif_base_addrs[PLATFORM_CORE_COUNT];
+#if K3_PM_SYSTEM_SUSPEND
+static gicv3_redist_ctx_t rdist_ctx[PLATFORM_CORE_COUNT];
+static gicv3_dist_ctx_t dist_ctx;
+#endif
+
static const interrupt_prop_t k3_interrupt_props[] = {
PLAT_ARM_G1S_IRQ_PROPS(INTR_GROUP1S),
PLAT_ARM_G0_IRQ_PROPS(INTR_GROUP0)
@@ -88,3 +93,21 @@
{
gicv3_rdistif_init(plat_my_core_pos());
}
+
+#if K3_PM_SYSTEM_SUSPEND
+void k3_gic_save_context(void)
+{
+ for (unsigned int i = 0U; i < PLATFORM_CORE_COUNT; i++) {
+ gicv3_rdistif_save(i, &rdist_ctx[i]);
+ }
+ gicv3_distif_save(&dist_ctx);
+}
+
+void k3_gic_restore_context(void)
+{
+ gicv3_distif_init_restore(&dist_ctx);
+ for (unsigned int i = 0U; i < PLATFORM_CORE_COUNT; i++) {
+ gicv3_rdistif_init_restore(i, &rdist_ctx[i]);
+ }
+}
+#endif
diff --git a/plat/ti/k3/common/k3_psci.c b/plat/ti/k3/common/k3_psci.c
index 0500740..6febbc6 100644
--- a/plat/ti/k3/common/k3_psci.c
+++ b/plat/ti/k3/common/k3_psci.c
@@ -234,11 +234,50 @@
return PSCI_E_SUCCESS;
}
+#if K3_PM_SYSTEM_SUSPEND
+static void k3_pwr_domain_suspend(const psci_power_state_t *target_state)
+{
+ unsigned int core, proc_id;
+
+ core = plat_my_core_pos();
+ proc_id = PLAT_PROC_START_ID + core;
+
+ /* Prevent interrupts from spuriously waking up this cpu */
+ k3_gic_cpuif_disable();
+ k3_gic_save_context();
+
+ k3_pwr_domain_off(target_state);
+
+ ti_sci_enter_sleep(proc_id, 0, k3_sec_entrypoint);
+}
+
+static void k3_pwr_domain_suspend_finish(const psci_power_state_t *target_state)
+{
+ k3_gic_restore_context();
+ k3_gic_cpuif_enable();
+}
+
+static void k3_get_sys_suspend_power_state(psci_power_state_t *req_state)
+{
+ unsigned int i;
+
+ /* CPU & cluster off, system in retention */
+ for (i = MPIDR_AFFLVL0; i <= PLAT_MAX_PWR_LVL; i++) {
+ req_state->pwr_domain_state[i] = PLAT_MAX_OFF_STATE;
+ }
+}
+#endif
+
static const plat_psci_ops_t k3_plat_psci_ops = {
.cpu_standby = k3_cpu_standby,
.pwr_domain_on = k3_pwr_domain_on,
.pwr_domain_off = k3_pwr_domain_off,
.pwr_domain_on_finish = k3_pwr_domain_on_finish,
+#if K3_PM_SYSTEM_SUSPEND
+ .pwr_domain_suspend = k3_pwr_domain_suspend,
+ .pwr_domain_suspend_finish = k3_pwr_domain_suspend_finish,
+ .get_sys_suspend_power_state = k3_get_sys_suspend_power_state,
+#endif
.system_off = k3_system_off,
.system_reset = k3_system_reset,
.validate_power_state = k3_validate_power_state,
diff --git a/plat/ti/k3/common/plat_common.mk b/plat/ti/k3/common/plat_common.mk
index ab7366b..e299c30 100644
--- a/plat/ti/k3/common/plat_common.mk
+++ b/plat/ti/k3/common/plat_common.mk
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
@@ -45,6 +45,10 @@
K3_USART_BAUD := 115200
$(eval $(call add_define,K3_USART_BAUD))
+# Enable system suspend modes
+K3_PM_SYSTEM_SUSPEND := 0
+$(eval $(call add_define,K3_PM_SYSTEM_SUSPEND))
+
# Libraries
include lib/xlat_tables_v2/xlat_tables.mk
diff --git a/plat/ti/k3/include/k3_gicv3.h b/plat/ti/k3/include/k3_gicv3.h
index 2329a16..2c68a75 100644
--- a/plat/ti/k3/include/k3_gicv3.h
+++ b/plat/ti/k3/include/k3_gicv3.h
@@ -14,5 +14,7 @@
void k3_gic_cpuif_enable(void);
void k3_gic_cpuif_disable(void);
void k3_gic_pcpu_init(void);
+void k3_gic_save_context(void);
+void k3_gic_restore_context(void);
#endif /* K3_GICV3_H */