Refactor MediaTek platform common code
Refactor MediaTek platform common code for further mt6795 upstream.
diff --git a/plat/mediatek/common/custom/oem_svc.c b/plat/mediatek/common/custom/oem_svc.c
new file mode 100644
index 0000000..6f31c53
--- /dev/null
+++ b/plat/mediatek/common/custom/oem_svc.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <arch.h>
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include <oem_svc.h>
+#include <platform.h>
+#include <runtime_svc.h>
+#include <stdint.h>
+#include <uuid.h>
+
+/* OEM Service UUID */
+DEFINE_SVC_UUID(oem_svc_uid,
+ 0xb943add0, 0x069d, 0x11e4, 0x91, 0x91,
+ 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66);
+
+
+/* Setup OEM Services */
+static int32_t oem_svc_setup(void)
+{
+ /*
+ * Invoke related module setup from here
+ */
+
+ return 0;
+}
+
+/*******************************************************************************
+ * OEM top level handler for servicing SMCs.
+ ******************************************************************************/
+uint64_t oem_smc_handler(uint32_t smc_fid,
+ uint64_t x1,
+ uint64_t x2,
+ uint64_t x3,
+ uint64_t x4,
+ void *cookie,
+ void *handle,
+ uint64_t flags)
+{
+ uint64_t rc;
+
+ switch (smc_fid) {
+ default:
+ rc = SMC_UNK;
+ WARN("Unimplemented OEM Call: 0x%x\n", smc_fid);
+ }
+
+ SMC_RET1(handle, rc);
+}
+
+/*
+ * Top-level OEM Service SMC handler. This handler will in turn dispatch
+ * calls to related SMC handler
+ */
+uint64_t oem_svc_smc_handler(uint32_t smc_fid,
+ uint64_t x1,
+ uint64_t x2,
+ uint64_t x3,
+ uint64_t x4,
+ void *cookie,
+ void *handle,
+ uint64_t flags)
+{
+ /*
+ * Dispatch OEM calls to OEM Common handler and return its return value
+ */
+ if (is_oem_fid(smc_fid)) {
+ return oem_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
+ handle, flags);
+ }
+
+ switch (smc_fid) {
+ case OEM_SVC_CALL_COUNT:
+ /*
+ * Return the number of OEM Service Calls.
+ */
+ SMC_RET1(handle, OEM_SVC_NUM_CALLS);
+
+ case OEM_SVC_UID:
+ /* Return UID to the caller */
+ SMC_UUID_RET(handle, oem_svc_uid);
+
+ case OEM_SVC_VERSION:
+ /* Return the version of current implementation */
+ SMC_RET2(handle, OEM_VERSION_MAJOR, OEM_VERSION_MINOR);
+
+ default:
+ WARN("Unimplemented OEM Service Call: 0x%x\n", smc_fid);
+ SMC_RET1(handle, SMC_UNK);
+ }
+}
+
+/* Register OEM Service Calls as runtime service */
+DECLARE_RT_SVC(
+ oem_svc,
+ OEN_OEM_START,
+ OEN_OEM_END,
+ SMC_TYPE_FAST,
+ oem_svc_setup,
+ oem_svc_smc_handler
+);