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

source/trusted-firmware/trusted-firmware-a-2.8/drivers/nxp/csu/csu.c

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2020 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <endian.h>
+
+#include <common/debug.h>
+#include <csu.h>
+#include <lib/mmio.h>
+
+void enable_layerscape_ns_access(struct csu_ns_dev_st *csu_ns_dev,
+				 uint32_t num, uintptr_t nxp_csu_addr)
+{
+	uint32_t *base = (uint32_t *)nxp_csu_addr;
+	uint32_t *reg;
+	uint32_t val;
+	int i;
+
+	for (i = 0; i < num; i++) {
+		reg = base + csu_ns_dev[i].ind / 2U;
+		val = be32toh(mmio_read_32((uintptr_t)reg));
+		if (csu_ns_dev[i].ind % 2U == 0U) {
+			val &= 0x0000ffffU;
+			val |= csu_ns_dev[i].val << 16U;
+		} else {
+			val &= 0xffff0000U;
+			val |= csu_ns_dev[i].val;
+		}
+		mmio_write_32((uintptr_t)reg, htobe32(val));
+	}
+}

source/trusted-firmware/trusted-firmware-a-2.8/drivers/nxp/csu/csu.mk

@@ -0,0 +1,26 @@
+#
+# Copyright 2021 NXP
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#-----------------------------------------------------------------------------
+ifeq (${CSU_ADDED},)
+
+CSU_ADDED		:= 1
+
+PLAT_INCLUDES		+= -I$(PLAT_DRIVERS_INCLUDE_PATH)/csu
+
+CSU_SOURCES		+= $(PLAT_DRIVERS_PATH)/csu/csu.c
+
+ifeq (${BL_COMM_CSU_NEEDED},yes)
+BL_COMMON_SOURCES	+= ${CSU_SOURCES}
+else
+ifeq (${BL2_CSU_NEEDED},yes)
+BL2_SOURCES		+= ${CSU_SOURCES}
+endif
+ifeq (${BL31_CSU_NEEDED},yes)
+BL31_SOURCES		+= ${CSU_SOURCES}
+endif
+endif
+
+endif