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

source/bootloader/u-boot-2020.01/arch/arm/mach-uniphier/cpu-info.c

@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2013-2014 Panasonic Corporation
+ * Copyright (C) 2015-2017 Socionext Inc.
+ *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ */
+
+#include <stdio.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/printk.h>
+
+#include "base-address.h"
+#include "soc-info.h"
+
+int print_cpuinfo(void)
+{
+	unsigned int id, model, rev, required_model = 1, required_rev = 1;
+	int ret;
+
+	ret = uniphier_base_address_init();
+	if (ret)
+		return ret;
+
+	id = uniphier_get_soc_id();
+	model = uniphier_get_soc_model();
+	rev = uniphier_get_soc_revision();
+
+	puts("SoC:   ");
+
+	switch (id) {
+	case UNIPHIER_LD4_ID:
+		puts("LD4");
+		required_rev = 2;
+		break;
+	case UNIPHIER_PRO4_ID:
+		puts("Pro4");
+		break;
+	case UNIPHIER_SLD8_ID:
+		puts("sLD8");
+		break;
+	case UNIPHIER_PRO5_ID:
+		puts("Pro5");
+		break;
+	case UNIPHIER_PXS2_ID:
+		puts("PXs2");
+		break;
+	case UNIPHIER_LD6B_ID:
+		puts("LD6b");
+		break;
+	case UNIPHIER_LD11_ID:
+		puts("LD11");
+		break;
+	case UNIPHIER_LD20_ID:
+		puts("LD20");
+		break;
+	case UNIPHIER_PXS3_ID:
+		puts("PXs3");
+		break;
+	default:
+		printf("Unknown Processor ID (0x%x)\n", id);
+		return -ENOTSUPP;
+	}
+
+	printf(" (model %d, revision %d)\n", model, rev);
+
+	if (model < required_model) {
+		pr_err("Only model %d or newer is supported.\n",
+		       required_model);
+		return -ENOTSUPP;
+	} else if (rev < required_rev) {
+		pr_err("Only revision %d or newer is supported.\n",
+		       required_rev);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}