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Diffstat (limited to 'plat/rockchip/common/rockchip_sip_svc.c')
-rw-r--r--plat/rockchip/common/rockchip_sip_svc.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/plat/rockchip/common/rockchip_sip_svc.c b/plat/rockchip/common/rockchip_sip_svc.c
new file mode 100644
index 0000000..27ef042
--- /dev/null
+++ b/plat/rockchip/common/rockchip_sip_svc.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <common/debug.h>
+#include <common/runtime_svc.h>
+#include <lib/mmio.h>
+#include <tools_share/uuid.h>
+
+#include <plat_sip_calls.h>
+#include <rockchip_sip_svc.h>
+
+/* Rockchip SiP Service UUID */
+DEFINE_SVC_UUID2(rk_sip_svc_uid,
+ 0xe2c76fe8, 0x3e31, 0xe611, 0xb7, 0x0d,
+ 0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72);
+
+#pragma weak rockchip_plat_sip_handler
+uintptr_t rockchip_plat_sip_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)
+{
+ ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
+ SMC_RET1(handle, SMC_UNK);
+}
+
+/*
+ * This function is responsible for handling all SiP calls from the NS world
+ */
+uintptr_t sip_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)
+{
+ uint32_t ns;
+
+ /* Determine which security state this SMC originated from */
+ ns = is_caller_non_secure(flags);
+ if (!ns)
+ SMC_RET1(handle, SMC_UNK);
+
+ switch (smc_fid) {
+ case SIP_SVC_CALL_COUNT:
+ /* Return the number of Rockchip SiP Service Calls. */
+ SMC_RET1(handle,
+ RK_COMMON_SIP_NUM_CALLS + RK_PLAT_SIP_NUM_CALLS);
+
+ case SIP_SVC_UID:
+ /* Return UID to the caller */
+ SMC_UUID_RET(handle, rk_sip_svc_uid);
+
+ case SIP_SVC_VERSION:
+ /* Return the version of current implementation */
+ SMC_RET2(handle, RK_SIP_SVC_VERSION_MAJOR,
+ RK_SIP_SVC_VERSION_MINOR);
+
+ default:
+ return rockchip_plat_sip_handler(smc_fid, x1, x2, x3, x4,
+ cookie, handle, flags);
+ }
+}
+
+/* Define a runtime service descriptor for fast SMC calls */
+DECLARE_RT_SVC(
+ rockchip_sip_svc,
+ OEN_SIP_START,
+ OEN_SIP_END,
+ SMC_TYPE_FAST,
+ NULL,
+ sip_smc_handler
+);