add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/mips/kernel/setup.c
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@@ -11,6 +11,8 @@
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  * Copyright (C) 2000, 2001, 2002, 2007	 Maciej W. Rozycki
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  */
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 #include <linux/init.h>
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+#include <linux/cpu.h>
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+#include <linux/delay.h>
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 #include <linux/ioport.h>
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 #include <linux/export.h>
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 #include <linux/screen_info.h>
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@@ -154,10 +156,6 @@
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 		pr_err("initrd start must be page aligned\n");
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 		goto disable;
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 	}
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-	if (initrd_start < PAGE_OFFSET) {
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-		pr_err("initrd start < PAGE_OFFSET\n");
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-		goto disable;
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-	}
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 	/*
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 	 * Sanitize initrd addresses. For example firmware
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@@ -169,6 +167,11 @@
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 	end = __pa(initrd_end);
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 	initrd_end = (unsigned long)__va(end);
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 	initrd_start = (unsigned long)__va(__pa(initrd_start));
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+
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+	if (initrd_start < PAGE_OFFSET) {
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+		pr_err("initrd start < PAGE_OFFSET\n");
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+		goto disable;
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+	}
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 	ROOT_DEV = Root_RAM0;
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 	return PFN_UP(end);
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@@ -828,3 +831,14 @@
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 }
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 early_param("nocoherentio", setnocoherentio);
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 #endif
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+
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+void __init arch_cpu_finalize_init(void)
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+{
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+	unsigned int cpu = smp_processor_id();
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+
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+	cpu_data[cpu].udelay_val = loops_per_jiffy;
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+	check_bugs32();
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+
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+	if (IS_ENABLED(CONFIG_CPU_R4X00_BUGS64))
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+		check_bugs64();
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+}