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

source/bootloader/u-boot-2020.01/arch/powerpc/cpu/mpc8xx/fdt.c

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2008 (C) Bryan O'Donoghue
+ *
+ * Code copied & edited from Freescale mpc85xx stuff.
+ */
+
+#include <common.h>
+#include <linux/libfdt.h>
+#include <fdt_support.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void ft_cpu_setup(void *blob, bd_t *bd)
+{
+	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
+			     "timebase-frequency", get_tbclk(), 1);
+	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
+			     "bus-frequency", bd->bi_busfreq, 1);
+	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
+			     "clock-frequency", bd->bi_intfreq, 1);
+	do_fixup_by_compat_u32(blob, "fsl,pq1-soc", "clock-frequency",
+			       bd->bi_intfreq, 1);
+	do_fixup_by_compat_u32(blob, "fsl,cpm-brg", "clock-frequency",
+			       gd->arch.brg_clk, 1);
+
+	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
+}