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

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
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+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <bl31/interrupt_mgmt.h>
+#include <common/bl_common.h>
+#include <common/ep_info.h>
+#include <lib/mmio.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+#include <platform_def.h>
+#include <stdint.h>
+
+/*******************************************************************************
+ * Platform memory map regions
+ ******************************************************************************/
+#define MAP_NSDRAM0		MAP_REGION_FLAT(AML_NSDRAM0_BASE,		\
+						AML_NSDRAM0_SIZE,		\
+						MT_MEMORY | MT_RW | MT_NS)
+
+#define MAP_NS_SHARE_MEM	MAP_REGION_FLAT(AML_NS_SHARE_MEM_BASE,		\
+						AML_NS_SHARE_MEM_SIZE,		\
+						MT_MEMORY | MT_RW | MT_NS)
+
+#define MAP_SEC_SHARE_MEM	MAP_REGION_FLAT(AML_SEC_SHARE_MEM_BASE,		\
+						AML_SEC_SHARE_MEM_SIZE,		\
+						MT_MEMORY | MT_RW | MT_SECURE)
+
+#define MAP_SEC_DEVICE0		MAP_REGION_FLAT(AML_SEC_DEVICE0_BASE,		\
+						AML_SEC_DEVICE0_SIZE,		\
+						MT_DEVICE | MT_RW)
+
+#define MAP_GIC_DEVICE		MAP_REGION_FLAT(AML_GIC_DEVICE_BASE,		\
+						AML_GIC_DEVICE_SIZE,		\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_SEC_DEVICE1		MAP_REGION_FLAT(AML_SEC_DEVICE1_BASE,		\
+						AML_SEC_DEVICE1_SIZE,		\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_SEC_DEVICE2		MAP_REGION_FLAT(AML_SEC_DEVICE2_BASE,		\
+						AML_SEC_DEVICE2_SIZE,		\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_TZRAM		MAP_REGION_FLAT(AML_TZRAM_BASE,			\
+						AML_TZRAM_SIZE,			\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+static const mmap_region_t axg_mmap[] = {
+	MAP_NSDRAM0,
+	MAP_NS_SHARE_MEM,
+	MAP_SEC_SHARE_MEM,
+	MAP_SEC_DEVICE0,
+	MAP_GIC_DEVICE,
+	MAP_SEC_DEVICE1,
+	MAP_SEC_DEVICE2,
+	MAP_TZRAM,
+	{0}
+};
+
+/*******************************************************************************
+ * Per-image regions
+ ******************************************************************************/
+#define MAP_BL31	MAP_REGION_FLAT(BL31_BASE,					\
+					BL31_END - BL31_BASE,				\
+					MT_MEMORY | MT_RW | MT_SECURE)
+
+#define MAP_BL_CODE	MAP_REGION_FLAT(BL_CODE_BASE,					\
+					BL_CODE_END - BL_CODE_BASE,			\
+					MT_CODE | MT_SECURE)
+
+#define MAP_BL_RO_DATA	MAP_REGION_FLAT(BL_RO_DATA_BASE,				\
+					BL_RO_DATA_END - BL_RO_DATA_BASE,		\
+					MT_RO_DATA | MT_SECURE)
+
+#define MAP_BL_COHERENT	MAP_REGION_FLAT(BL_COHERENT_RAM_BASE,				\
+					BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE, 	\
+					MT_DEVICE | MT_RW | MT_SECURE)
+
+/*******************************************************************************
+ * Function that sets up the translation tables.
+ ******************************************************************************/
+void aml_setup_page_tables(void)
+{
+#if IMAGE_BL31
+	const mmap_region_t axg_bl_mmap[] = {
+		MAP_BL31,
+		MAP_BL_CODE,
+		MAP_BL_RO_DATA,
+#if USE_COHERENT_MEM
+		MAP_BL_COHERENT,
+#endif
+		{0}
+	};
+#endif
+
+	mmap_add(axg_bl_mmap);
+
+	mmap_add(axg_mmap);
+
+	init_xlat_tables();
+}
+
+/*******************************************************************************
+ * Function that returns the system counter frequency
+ ******************************************************************************/
+unsigned int plat_get_syscnt_freq2(void)
+{
+	mmio_clrbits_32(AML_SYS_CPU_CFG7, PLAT_SYS_CPU_CFG7);
+	mmio_clrbits_32(AML_AO_TIMESTAMP_CNTL, PLAT_AO_TIMESTAMP_CNTL);
+
+	return AML_OSC24M_CLK_IN_HZ;
+}