feat(versal2): add support for AMD Versal Gen 2 platform
New SoC is a78 based with gicv3 and uart over pl011. Communication
interfaces are similar to Versal NET platform. System starts with AMD PLM
firmware which loads TF-A(bl31) to memory, which is already configured, and
jumps to it. PLM also prepare handoff structure for TF-A with information
what components were load and flags which indicate which EL level SW should
be started.
Change-Id: I5065b1b7ec4ee58e77dc4096747758480c84009c
Signed-off-by: Amit Nagal <amit.nagal@amd.com>
Signed-off-by: Akshay Belsare <akshay.belsare@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/plat/amd/versal2/sip_svc_setup.c b/plat/amd/versal2/sip_svc_setup.c
new file mode 100644
index 0000000..6850030
--- /dev/null
+++ b/plat/amd/versal2/sip_svc_setup.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2018-2019, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved.
+ * Copyright (c) 2022-2024, Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* Top level SMC handler for SiP calls. Dispatch PM calls to PM SMC handler. */
+
+#include <errno.h>
+#include <inttypes.h>
+
+#include <common/debug.h>
+#include <common/runtime_svc.h>
+#include <drivers/scmi-msg.h>
+#include <scmi.h>
+#include <tools_share/uuid.h>
+
+#include "ipi_mailbox_svc.h"
+#include "plat_private.h"
+#include "pm_svc_main.h"
+
+/* SMC function IDs for SiP Service queries */
+#define SIP_SVC_UID (0x8200ff01U)
+#define SIP_SVC_VERSION (0x8200ff03U)
+
+/* SiP Service Calls version numbers */
+#define SIP_SVC_VERSION_MAJOR (0U)
+#define SIP_SVC_VERSION_MINOR (1U)
+
+/* These macros are used to identify PM calls from the SMC function ID */
+#define SIP_FID_MASK GENMASK(23, 16)
+#define XLNX_FID_MASK GENMASK(23, 12)
+#define PM_FID_VALUE 0u
+#define IPI_FID_VALUE 0x1000u
+#define is_pm_fid(_fid) (((_fid) & XLNX_FID_MASK) == PM_FID_VALUE)
+#define is_ipi_fid(_fid) (((_fid) & XLNX_FID_MASK) == IPI_FID_VALUE)
+
+/* SiP Service UUID */
+DEFINE_SVC_UUID2(_sip_uuid,
+ 0x0499eb70, 0x5ed0, 0x11ee, 0xb3, 0x0a,
+ 0x87, 0xd1, 0x1d, 0x4f, 0x8a, 0x9b);
+
+/**
+ * sip_svc_setup() - Setup SiP Service
+ *
+ * Return: 0 on success, negative error code on failure.
+ *
+ */
+static int32_t sip_svc_setup(void)
+{
+ return sip_svc_setup_init();
+}
+
+/*
+ * sip_svc_smc_handler() - Top-level SiP Service SMC handler
+ *
+ * Handler for all SiP SMC calls. Handles standard SIP requests
+ * and calls PM SMC handler if the call is for a PM-API function.
+ */
+static uintptr_t sip_svc_smc_handler(uint32_t smc_fid,
+ u_register_t x1,
+ u_register_t x2,
+ u_register_t x3,
+ u_register_t x4,
+ void *cookie,
+ void *handle,
+ u_register_t flags)
+{
+ VERBOSE("SMCID: 0x%08x, x1: 0x%016" PRIx64 ", x2: 0x%016" PRIx64 ", x3: 0x%016" PRIx64 ", x4: 0x%016" PRIx64 "\n",
+ smc_fid, x1, x2, x3, x4);
+
+ if ((smc_fid & SIP_FID_MASK) != 0) {
+ WARN("SMC out of SiP assinged range: 0x%x\n", smc_fid);
+ SMC_RET1(handle, SMC_UNK);
+ }
+
+ /* Let PM SMC handler deal with PM-related requests */
+ if (is_pm_fid(smc_fid)) {
+ return smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle, flags);
+ }
+
+ /* Let IPI SMC handler deal with IPI-related requests if platform */
+ if (is_ipi_fid(smc_fid)) {
+ return ipi_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle, flags);
+ }
+
+ /* Let PM SMC handler deal with PM-related requests */
+ switch (smc_fid) {
+ case SIP_SVC_UID:
+ SMC_UUID_RET(handle, _sip_uuid);
+
+ case SIP_SVC_VERSION:
+ SMC_RET2(handle, SIP_SVC_VERSION_MAJOR, SIP_SVC_VERSION_MINOR);
+
+ case SIP_SCMI:
+ if (platform_id != EMU) {
+ scmi_smt_fastcall_smc_entry(0);
+ SMC_RET1(handle, 0);
+ }
+ WARN("SCMI is not working on EMU\n");
+ SMC_RET1(handle, SMC_UNK);
+ default:
+ WARN("Unimplemented SiP Service Call: 0x%x\n", smc_fid);
+ SMC_RET1(handle, SMC_UNK);
+ }
+}
+
+/* Register PM Service Calls as runtime service */
+DECLARE_RT_SVC(
+ sip_svc,
+ OEN_SIP_START,
+ OEN_SIP_END,
+ SMC_TYPE_FAST,
+ sip_svc_setup,
+ sip_svc_smc_handler);