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

source/trusted-firmware/trusted-firmware-a-2.8/plat/mediatek/mt8173/aarch64/plat_helpers.S

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <arch.h>
+#include <asm_macros.S>
+#include <mt8173_def.h>
+
+	.globl	plat_secondary_cold_boot_setup
+	.globl	plat_report_exception
+	.globl	platform_is_primary_cpu
+	.globl  plat_my_core_pos
+
+	/* -----------------------------------------------------
+	 * void plat_secondary_cold_boot_setup (void);
+	 *
+	 * This function performs any platform specific actions
+	 * needed for a secondary cpu after a cold reset e.g
+	 * mark the cpu's presence, mechanism to place it in a
+	 * holding pen etc.
+	 * -----------------------------------------------------
+	 */
+func plat_secondary_cold_boot_setup
+	/* MT8173 Oak does not do cold boot for secondary CPU */
+cb_panic:
+	b	cb_panic
+endfunc plat_secondary_cold_boot_setup
+
+func platform_is_primary_cpu
+	and	x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+	cmp	x0, #MT8173_PRIMARY_CPU
+	cset	x0, eq
+	ret
+endfunc platform_is_primary_cpu
+
+	/* -----------------------------------------------------
+	 * unsigned int plat_my_core_pos(void);
+	 *
+	 * result: CorePos = CoreId + (ClusterId << 2)
+	 * -----------------------------------------------------
+	 */
+func plat_my_core_pos
+	mrs     x0, mpidr_el1
+	and     x1, x0, #MPIDR_CPU_MASK
+	and     x0, x0, #MPIDR_CLUSTER_MASK
+	add     x0, x1, x0, LSR #6
+	ret
+endfunc plat_my_core_pos

source/trusted-firmware/trusted-firmware-a-2.8/plat/mediatek/mt8173/aarch64/platform_common.c

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+
+#include <arch_helpers.h>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <drivers/arm/cci.h>
+#include <lib/utils.h>
+#include <lib/xlat_tables/xlat_tables.h>
+
+#include <mt8173_def.h>
+
+static const int cci_map[] = {
+	PLAT_MT_CCI_CLUSTER0_SL_IFACE_IX,
+	PLAT_MT_CCI_CLUSTER1_SL_IFACE_IX
+};
+
+/* Table of regions to map using the MMU.  */
+const mmap_region_t plat_mmap[] = {
+	/* for TF text, RO, RW */
+	MAP_REGION_FLAT(TZRAM_BASE, TZRAM_SIZE,
+			MT_MEMORY | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(MTK_DEV_RNG0_BASE, MTK_DEV_RNG0_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(MTK_DEV_RNG1_BASE, MTK_DEV_RNG1_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	{ 0 }
+
+};
+
+/*******************************************************************************
+ * Macro generating the code for the function setting up the pagetables as per
+ * the platform memory map & initialize the mmu, for the given exception level
+ ******************************************************************************/
+#define DEFINE_CONFIGURE_MMU_EL(_el)					\
+	void plat_configure_mmu_el ## _el(unsigned long total_base,	\
+					  unsigned long total_size,	\
+					  unsigned long ro_start,	\
+					  unsigned long ro_limit,	\
+					  unsigned long coh_start,	\
+					  unsigned long coh_limit)	\
+	{								\
+		mmap_add_region(total_base, total_base,			\
+				total_size,				\
+				MT_MEMORY | MT_RW | MT_SECURE);		\
+		mmap_add_region(ro_start, ro_start,			\
+				ro_limit - ro_start,			\
+				MT_MEMORY | MT_RO | MT_SECURE);		\
+		mmap_add_region(coh_start, coh_start,			\
+				coh_limit - coh_start,			\
+				MT_DEVICE | MT_RW | MT_SECURE);		\
+		mmap_add(plat_mmap);					\
+		init_xlat_tables();					\
+									\
+		enable_mmu_el ## _el(0);				\
+	}
+
+/* Define EL3 variants of the function initialising the MMU */
+DEFINE_CONFIGURE_MMU_EL(3)
+
+unsigned int plat_get_syscnt_freq2(void)
+{
+	return SYS_COUNTER_FREQ_IN_TICKS;
+}
+
+void plat_cci_init(void)
+{
+	/* Initialize CCI driver */
+	cci_init(PLAT_MT_CCI_BASE, cci_map, ARRAY_SIZE(cci_map));
+}
+
+void plat_cci_enable(void)
+{
+	/*
+	 * Enable CCI coherency for this cluster.
+	 * No need for locks as no other cpu is active at the moment.
+	 */
+	cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr()));
+}
+
+void plat_cci_disable(void)
+{
+	cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr()));
+}