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

source/bootloader/u-boot-2020.01/arch/arm/mach-zynqmp-r5/cpu.c

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 Xilinx, Inc. (Michal Simek)
+ */
+
+#include <common.h>
+#include <asm/armv7_mpu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct mpu_region_config region_config[] = {
+	{ 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
+	  O_I_WB_RD_WR_ALLOC, REGION_1GB },
+	{ 0x20000000, REGION_1, XN_EN, PRIV_RO_USR_RO,
+	  O_I_WB_RD_WR_ALLOC, REGION_512MB },
+	{ 0x40000000, REGION_2, XN_EN, PRIV_RO_USR_RO,
+	  O_I_WB_RD_WR_ALLOC, REGION_1GB },
+};
+
+int arch_cpu_init(void)
+{
+	gd->cpu_clk = CONFIG_CPU_FREQ_HZ;
+
+	setup_mpu_regions(region_config, sizeof(region_config) /
+			  sizeof(struct mpu_region_config));
+
+	return 0;
+}
+
+/*
+ * Perform the low-level reset.
+ */
+void reset_cpu(ulong addr)
+{
+	while (1)
+		;
+}