GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/plat/mediatek/common/mtk_plat_common.c

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <drivers/arm/cci.h>
+#include <drivers/console.h>
+#include <lib/mmio.h>
+#include <lib/smccc.h>
+#include <lib/xlat_tables/xlat_tables.h>
+#include <plat/common/platform.h>
+#include <services/arm_arch_svc.h>
+
+#include <mtk_plat_common.h>
+#include <mtk_sip_svc.h>
+#include <plat_private.h>
+
+void clean_top_32b_of_param(uint32_t smc_fid,
+				u_register_t *px1,
+				u_register_t *px2,
+				u_register_t *px3,
+				u_register_t *px4)
+{
+	/* if parameters from SMC32. Clean top 32 bits */
+	if (GET_SMC_CC(smc_fid) == SMC_64) {
+		*px1 = *px1 & SMC32_PARAM_MASK;
+		*px2 = *px2 & SMC32_PARAM_MASK;
+		*px3 = *px3 & SMC32_PARAM_MASK;
+		*px4 = *px4 & SMC32_PARAM_MASK;
+	}
+}
+
+/*****************************************************************************
+ * plat_is_smccc_feature_available() - This function checks whether SMCCC
+ *                                     feature is availabile for platform.
+ * @fid: SMCCC function id
+ *
+ * Return SMC_OK if SMCCC feature is available and SMC_ARCH_CALL_NOT_SUPPORTED
+ * otherwise.
+ *****************************************************************************/
+int32_t plat_is_smccc_feature_available(u_register_t fid)
+{
+	switch (fid) {
+	case SMCCC_ARCH_SOC_ID:
+		return SMC_ARCH_CALL_SUCCESS;
+	default:
+		return SMC_ARCH_CALL_NOT_SUPPORTED;
+	}
+}
+
+int32_t plat_get_soc_version(void)
+{
+	uint32_t manfid = SOC_ID_SET_JEP_106(JEDEC_MTK_BKID, JEDEC_MTK_MFID);
+
+	return (int32_t)(manfid | (SOC_CHIP_ID & SOC_ID_IMPL_DEF_MASK));
+}
+
+int32_t plat_get_soc_revision(void)
+{
+	return 0;
+}