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

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+/*
+ * 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 <drivers/console.h>
+#include <platform_def.h>
+
+	.weak	plat_report_exception
+	.weak	plat_reset_handler
+	.weak	plat_disable_acp
+	.weak	bl1_plat_prepare_exit
+	.weak	plat_panic_handler
+	.weak	bl31_plat_enable_mmu
+	.weak	bl32_plat_enable_mmu
+
+	.weak	plat_handle_uncontainable_ea
+	.weak	plat_handle_double_fault
+	.weak	plat_handle_el3_ea
+
+#define MPIDR_RES_BIT_MASK	0xff000000
+
+	/* -----------------------------------------------------
+	 * Placeholder function which should be redefined by
+	 * each platform.
+	 * -----------------------------------------------------
+	 */
+func plat_report_exception
+	ret
+endfunc plat_report_exception
+
+	/* -----------------------------------------------------
+	 * Placeholder function which should be redefined by
+	 * each platform. This function should preserve x19 - x29.
+	 * -----------------------------------------------------
+	 */
+func plat_reset_handler
+	ret
+endfunc plat_reset_handler
+
+	/* -----------------------------------------------------
+	 * Placeholder function which should be redefined by
+	 * each platform. This function is allowed to use
+	 * registers x0 - x17.
+	 * -----------------------------------------------------
+	 */
+func plat_disable_acp
+	ret
+endfunc plat_disable_acp
+
+	/* -----------------------------------------------------
+	 * void bl1_plat_prepare_exit(entry_point_info_t *ep_info);
+	 * Called before exiting BL1. Default: do nothing
+	 * -----------------------------------------------------
+	 */
+func bl1_plat_prepare_exit
+	ret
+endfunc bl1_plat_prepare_exit
+
+	/* -----------------------------------------------------
+	 * void plat_panic_handler(void) __dead2;
+	 * Endless loop by default.
+	 * -----------------------------------------------------
+	 */
+func plat_panic_handler
+	wfi
+	b	plat_panic_handler
+endfunc plat_panic_handler
+
+	/* -----------------------------------------------------
+	 * void bl31_plat_enable_mmu(uint32_t flags);
+	 *
+	 * Enable MMU in BL31.
+	 * -----------------------------------------------------
+	 */
+func bl31_plat_enable_mmu
+	b	enable_mmu_direct_el3
+endfunc bl31_plat_enable_mmu
+
+	/* -----------------------------------------------------
+	 * void bl32_plat_enable_mmu(uint32_t flags);
+	 *
+	 * Enable MMU in BL32.
+	 * -----------------------------------------------------
+	 */
+func bl32_plat_enable_mmu
+	b	enable_mmu_direct_el1
+endfunc bl32_plat_enable_mmu
+
+
+	/* -----------------------------------------------------
+	 * Platform handler for Uncontainable External Abort.
+	 *
+	 * x0: EA reason
+	 * x1: EA syndrome
+	 * -----------------------------------------------------
+	 */
+func plat_handle_uncontainable_ea
+	b	report_unhandled_exception
+endfunc plat_handle_uncontainable_ea
+
+	/* -----------------------------------------------------
+	 * Platform handler for Double Fault.
+	 *
+	 * x0: EA reason
+	 * x1: EA syndrome
+	 * -----------------------------------------------------
+	 */
+func plat_handle_double_fault
+	b	report_unhandled_exception
+endfunc plat_handle_double_fault
+
+	/* -----------------------------------------------------
+	 * Platform handler for EL3 External Abort.
+	 * -----------------------------------------------------
+	 */
+func plat_handle_el3_ea
+	b	report_unhandled_exception
+endfunc plat_handle_el3_ea