feat(plat): add support for BeagleBone AI-64

README.md

@@ -48,6 +48,7 @@ platforms is presented below:
 - [x] Arm Fixed Virtual Platforms
 - [x] Toradex Verdin iMX8M Plus (w/ Dahlia Carrier Board)
 - [x] NXP S32G3
+- [x] BeagleBone AI-64
 
 **Armv7-A / Armv8-A AArch32**
 - [x] Arm Fixed Virtual Platforms

src/arch/armv8/aarch64/inc/arch/subarch/sysregs.h

@@ -76,6 +76,7 @@ SYSREG_GEN_ACCESSORS(cntvoff_el2)
 SYSREG_GEN_ACCESSORS(sctlr_el1)
 SYSREG_GEN_ACCESSORS(cntkctl_el1)
 SYSREG_GEN_ACCESSORS(cntfrq_el0)
+SYSREG_GEN_ACCESSORS(cntpct_el0)
 SYSREG_GEN_ACCESSORS(pmcr_el0)
 SYSREG_GEN_ACCESSORS(par_el1)
 SYSREG_GEN_ACCESSORS(tcr_el2)

src/platform/beaglebone-ai64/bb-ai64_desc.c

@@ -0,0 +1,130 @@
+/**
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Bao Project and Contributors. All rights reserved.
+ */
+
+#include <platform.h>
+
+struct platform platform = {
+    .cpu_num = 2,
+    .region_num = 2,
+    .regions =
+        (struct mem_region[]){
+            {
+                .base = 0x80000000,
+                .size = 0x80000000,
+            },
+            {
+                .base = 0x880000000,
+                .size = 0x80000000,
+            },
+        },
+    .console =
+        {
+            .base = 0x02800000,
+        },
+    .arch =
+        {
+            .gic =
+                {
+                    .gicd_addr = 0x01800000,
+                    .gicr_addr = 0x01900000,
+                    .gicc_addr = 0x6f000000,
+                    .gich_addr = 0x6f010000,
+                    .gicv_addr = 0x6f020000,
+                    .maintenance_id = 25,
+                },
+        },
+};
+
+#ifndef GENERATING_DEFS
+
+static mbox_k3_sec_proxy_thread_desc sec_proxy_thread_desc[] = {
+    MBOX_K3_SEC_PROXY_THREAD_DESC_ENTRY(J721E_HOST_ID_MAIN_A72_CONTEXT_0_SECURE, 0, 2, 30, 10, 20),
+    MBOX_K3_SEC_PROXY_THREAD_DESC_ENTRY(J721E_HOST_ID_MAIN_A72_CONTEXT_1_SECURE, 5, 2, 30, 10, 20),
+    MBOX_K3_SEC_PROXY_THREAD_DESC_ENTRY(J721E_HOST_ID_MAIN_A72_CONTEXT_2_NON_SECURE, 10, 2, 22, 2,
+        20),
+    MBOX_K3_SEC_PROXY_THREAD_DESC_ENTRY(J721E_HOST_ID_MAIN_A72_CONTEXT_3_NON_SECURE, 15, 2, 7, 2, 5),
+    MBOX_K3_SEC_PROXY_THREAD_DESC_ENTRY(J721E_HOST_ID_MAIN_A72_CONTEXT_4_NON_SECURE, 20, 2, 7, 2, 5),
+    MBOX_K3_SEC_PROXY_THREAD_DESC_ENTRY(J721E_HOST_ID_MAIN_A72_CONTEXT_5_NON_SECURE, 55, 2, 7, 2, 5),
+};
+
+static mbox_k3_sec_proxy_desc k3_sec_proxy = {
+    .thread_inst =
+        {
+            .id = 0U,
+            .rt_base = 0x0032400000U,
+            .rt_size = 0x100000U,
+            .scfg_base = 0x0032800000U,
+            .scfg_size = 0x100000U,
+            .data_base = 0x0032C00000,
+            .data_size = 0x100000,
+            .max_msg_size = TISCI_MSG_MAX_SIZE,
+        },
+    .read_timeout_us = TISCI_MSG_TXN_TIMEOUT,
+    .sec_proxy_thread_desc = sec_proxy_thread_desc,
+    .num_threads = sizeof(sec_proxy_thread_desc) / sizeof(sec_proxy_thread_desc[0]),
+};
+
+static int32_t platform_tisci_send(uint8_t chan_id, void* buffer, size_t len)
+{
+    return mbox_k3_sec_proxy_write(&k3_sec_proxy, chan_id, buffer, len);
+}
+
+static int32_t platform_tisci_recv(uint8_t chan_id, void* buffer, size_t len)
+{
+    return mbox_k3_sec_proxy_read(&k3_sec_proxy, chan_id, buffer, len);
+}
+
+static tisci_ctx tisci_context = {
+    .ops =
+        {
+            .send = platform_tisci_send,
+            .recv = platform_tisci_recv,
+        },
+    .seq_id_lock = {0, 0},
+    .seq_id = 0U,
+};
+
+void platform_default_init(void)
+{
+    if (cpu_is_master()) {
+        cpu_sync_init(&cpu_glb_sync, platform.cpu_num);
+    }
+
+    mbox_k3_sec_proxy_init(&k3_sec_proxy);
+    cpu_sync_barrier(&cpu_glb_sync);
+
+    uint8_t cur_host_id = cpu_is_master() ? J721E_HOST_ID_MAIN_A72_CONTEXT_2_NON_SECURE :
+                                            J721E_HOST_ID_MAIN_A72_CONTEXT_3_NON_SECURE;
+
+    mbox_k3_sec_proxy_thread_desc* host_threads =
+        mbox_k3_sec_proxy_get_thread_by_host_func(&k3_sec_proxy, cur_host_id, 0U);
+    if (NULL == host_threads) {
+        ERROR("platform init failed, no secure proxy threads found");
+        return;
+    }
+
+    /* probe all secure proxy threads owned by this host */
+    for (uint8_t func_iterator = 0U; func_iterator < MBOX_K3_SEC_PROXY_NUM_HOST_FUNCTIONS;
+        func_iterator++) {
+        int32_t probe_status =
+            mbox_k3_sec_proxy_probe(&k3_sec_proxy, host_threads[func_iterator].sec_proxy_thread_id);
+        if (MBOX_K3_SEC_PROXY_STATUS_CODE_NO_ERROR != probe_status) {
+            ERROR("platform init failed, k3 secure_proxy_thread_%d probe status=%d",
+                host_threads[func_iterator].sec_proxy_thread_id, probe_status);
+            return;
+        }
+    }
+
+    /* ping test to ensure that host<->sysfw pipeline is clean */
+    tisci_msg_version_rsp ping_rsp = { 0 };
+    int32_t ping_status = tisci_get_revision(&tisci_context, cur_host_id,
+        host_threads[MBOX_K3_SEC_PROXY_HOST_FUNCTION_LOW_PRIORITY].sec_proxy_thread_id,
+        host_threads[MBOX_K3_SEC_PROXY_HOST_FUNCTION_RESPONSE].sec_proxy_thread_id, &ping_rsp);
+    if (TISCI_STATUS_CODE_NO_ERROR != ping_status) {
+        ERROR("platform init failed, ping to sysfw failed, ping_status=%d", ping_status);
+    }
+}
+
+#endif /* ifndef GENERATING_DEFS */

src/platform/beaglebone-ai64/inc/plat/platform.h

@@ -0,0 +1,23 @@
+/**
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Bao Project and Contributors. All rights reserved
+ */
+
+#ifndef __PLAT_PLATFORM_H__
+#define __PLAT_PLATFORM_H__
+
+#define UART8250_REG_WIDTH (4U)
+
+#include <drivers/8250_uart.h>
+#include <drivers/k3_sec_proxy.h>
+#include <drivers/tisci.h>
+
+/* j721e host id enumeration */
+#define J721E_HOST_ID_MAIN_A72_CONTEXT_0_SECURE     (10)
+#define J721E_HOST_ID_MAIN_A72_CONTEXT_1_SECURE     (11)
+#define J721E_HOST_ID_MAIN_A72_CONTEXT_2_NON_SECURE (12)
+#define J721E_HOST_ID_MAIN_A72_CONTEXT_3_NON_SECURE (13)
+#define J721E_HOST_ID_MAIN_A72_CONTEXT_4_NON_SECURE (14)
+#define J721E_HOST_ID_MAIN_A72_CONTEXT_5_NON_SECURE (30)
+
+#endif

src/platform/beaglebone-ai64/inc/plat/psci.h

@@ -0,0 +1,20 @@
+/**
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Bao Project and Contributors. All rights reserved.
+ */
+
+#ifndef __PLAT_PSCI_H__
+#define __PLAT_PSCI_H__
+
+#define PSCI_POWER_STATE_LVL_0    (0x0U)
+
+#define PSCI_STATE_TYPE_STANDBY   (0x0U)
+#define PSCI_STATE_TYPE_BIT       (1UL << 16)
+
+#define PSCI_STATE_ID_RUN         (0x0U)
+#define PSCI_STATE_ID_RETENTION   (0x1U)
+#define PSCI_STATE_ID_POWERDOWN   (0x2U)
+
+#define PSCI_STATE_TYPE_POWERDOWN PSCI_STATE_TYPE_BIT | PSCI_STATE_ID_POWERDOWN
+
+#endif // __PLAT_PSCI_H__

src/platform/beaglebone-ai64/objects.mk

@@ -0,0 +1,4 @@
+## SPDX-License-Identifier: Apache-2.0
+## Copyright (c) Bao Project and Contributors. All rights reserved.
+
+boards-objs-y+=bb-ai64_desc.o

src/platform/beaglebone-ai64/platform.mk

@@ -0,0 +1,18 @@
+## SPDX-License-Identifier: Apache-2.0
+## Copyright (c) Bao Project and Contributors. All rights reserved.
+
+# Architecture definition
+ARCH:=armv8
+# CPU definition
+CPU:=cortex-a72
+
+#needs to be checked
+GIC_VERSION:=GICV3
+
+drivers = 8250_uart mailbox firmware
+
+platform_description:=bb-ai64_desc.c
+
+platform-cflags = -mtune=$(CPU)
+platform-asflags =
+platform-ldflags =