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Diffstat (limited to 'plat/mediatek/mt6795/plat_sip_svc.c')
-rw-r--r--plat/mediatek/mt6795/plat_sip_svc.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/plat/mediatek/mt6795/plat_sip_svc.c b/plat/mediatek/mt6795/plat_sip_svc.c
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+/*
+ * 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 <console.h>
+#include <debug.h>
+#include <mmio.h>
+#include <mt_cpuxgpt.h>
+#include <mtk_sip_svc.h>
+#include <plat_private.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <mtk_plat_common.h>
+#include <runtime_svc.h>
+#include <xlat_tables.h>
+
+/*******************************************************************************
+ * SIP top level handler for servicing SMCs.
+ ******************************************************************************/
+uint64_t mediatek_plat_sip_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 = 0;
+ uint32_t ns;
+
+ /* Determine which security state this SMC originated from */
+ ns = is_caller_non_secure(flags);
+
+ VERBOSE("sip_smc_handler\n");
+ VERBOSE("id=0x%x\n", smc_fid);
+ VERBOSE("x1=0x%lx, x2=0x%lx, x3=0x%lx, x4=0x%lx\n", x1, x2, x3, x4);
+
+ if (!ns) {
+ /* SiP SMC service secure world's call */
+ switch (smc_fid) {
+ default:
+ rc = SMC_UNK;
+ }
+ } else {
+ /* SiP SMC service normal world's call */
+ switch (smc_fid) {
+ default:
+ rc = SMC_UNK;
+ }
+ }
+
+ if (rc == SMC_UNK) {
+ console_init(gteearg.atf_log_port,
+ UART_CLOCK, UART_BAUDRATE);
+ ERROR("%s: unhandled NS(%d) SMC (0x%x)\n",
+ __func__, ns, smc_fid);
+ console_uninit();
+ }
+ SMC_RET1(handle, rc);
+}