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

source/trusted-firmware/trusted-firmware-a-2.8/plat/socionext/synquacer/sq_xlat_setup.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+
+#include <common/debug.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+
+#define SQ_REG_REGION_BASE	0x20000000ULL
+#define SQ_REG_REGION_SIZE	0x60000000ULL
+
+void sq_mmap_setup(uintptr_t total_base, size_t total_size,
+			 const struct mmap_region *mmap)
+{
+	VERBOSE("Trusted RAM seen by this BL image: %p - %p\n",
+		(void *)total_base, (void *)(total_base + total_size));
+	mmap_add_region(total_base, total_base,
+			total_size,
+			MT_NON_CACHEABLE | MT_RW | MT_SECURE);
+
+	/* remap the code section */
+	VERBOSE("Code region: %p - %p\n",
+		(void *)BL_CODE_BASE, (void *)BL_CODE_END);
+	mmap_add_region(BL_CODE_BASE, BL_CODE_BASE,
+			round_up(BL_CODE_END, PAGE_SIZE) - BL_CODE_BASE,
+			MT_NON_CACHEABLE | MT_RO | MT_SECURE);
+
+	/* Re-map the read-only data section */
+	VERBOSE("Read-only data region: %p - %p\n",
+		(void *)BL_RO_DATA_BASE, (void *)BL_RO_DATA_END);
+	mmap_add_region(BL_RO_DATA_BASE, BL_RO_DATA_BASE,
+			round_up(BL_RO_DATA_END, PAGE_SIZE) - BL_RO_DATA_BASE,
+			(MT_NON_CACHEABLE | MT_RO | MT_EXECUTE_NEVER |
+			 MT_SECURE));
+
+	/* remap the coherent memory region */
+	VERBOSE("Coherent region: %p - %p\n",
+		(void *)BL_COHERENT_RAM_BASE, (void *)BL_COHERENT_RAM_END);
+	mmap_add_region(BL_COHERENT_RAM_BASE, BL_COHERENT_RAM_BASE,
+			BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE,
+			MT_DEVICE | MT_RW | MT_SECURE);
+
+	/* register region */
+	mmap_add_region(SQ_REG_REGION_BASE, SQ_REG_REGION_BASE,
+			SQ_REG_REGION_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE);
+
+	/* additional regions if needed */
+	if (mmap)
+		mmap_add(mmap);
+
+	init_xlat_tables();
+}