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) 2018-2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <assert_macros.S>
+#include <platform_def.h>
+
+	.globl	plat_crash_console_flush
+	.globl	plat_crash_console_init
+	.globl	plat_crash_console_putc
+	.globl	platform_mem_init
+	.globl	plat_is_my_cpu_primary
+	.globl	plat_my_core_pos
+	.globl	plat_reset_handler
+	.globl	plat_calc_core_pos
+
+	/* -----------------------------------------------------
+	 * unsigned int plat_my_core_pos(void);
+	 * -----------------------------------------------------
+	 */
+func plat_my_core_pos
+	mrs	x0, mpidr_el1
+	b	plat_calc_core_pos
+endfunc plat_my_core_pos
+
+	/* -----------------------------------------------------
+	 *  unsigned int plat_calc_core_pos(u_register_t mpidr);
+	 * -----------------------------------------------------
+	 */
+func plat_calc_core_pos
+	and	x0, x0, #MPIDR_CPU_MASK
+	ret
+endfunc plat_calc_core_pos
+
+	/* -----------------------------------------------------
+	 * unsigned int plat_is_my_cpu_primary(void);
+	 * -----------------------------------------------------
+	 */
+func plat_is_my_cpu_primary
+	mrs	x0, mpidr_el1
+	and	x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+	cmp	x0, #AML_PRIMARY_CPU
+	cset	w0, eq
+	ret
+endfunc plat_is_my_cpu_primary
+
+	/* ---------------------------------------------
+	 * void platform_mem_init(void);
+	 * ---------------------------------------------
+	 */
+func platform_mem_init
+	ret
+endfunc platform_mem_init
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_init(void)
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_init
+	mov_imm	x0, AML_UART0_AO_BASE
+	mov_imm	x1, AML_UART0_AO_CLK_IN_HZ
+	mov_imm	x2, AML_UART_BAUDRATE
+	b	console_meson_init
+endfunc plat_crash_console_init
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_putc(int c)
+	 * Clobber list : x1, x2
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_putc
+	mov_imm	x1, AML_UART0_AO_BASE
+	b	console_meson_core_putc
+endfunc plat_crash_console_putc
+
+	/* ---------------------------------------------
+	 * void plat_crash_console_flush()
+	 * Out : void.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_flush
+	mov_imm	x0, AML_UART0_AO_BASE
+	b	console_meson_core_flush
+endfunc plat_crash_console_flush
+
+	/* ---------------------------------------------
+	 * void plat_reset_handler(void);
+	 * ---------------------------------------------
+	 */
+func plat_reset_handler
+	ret
+endfunc plat_reset_handler