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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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2008, 2011 Freescale Semiconductor, Inc.
+ */
+
+#include <common.h>
+#include <linux/libfdt.h>
+#include <fdt_support.h>
+#include <asm/mp.h>
+
+extern void ft_fixup_num_cores(void *blob);
+extern void ft_srio_setup(void *blob);
+
+void ft_cpu_setup(void *blob, bd_t *bd)
+{
+#ifdef CONFIG_MP
+	int off;
+	u32 bootpg = determine_mp_bootpg(NULL);
+#endif
+
+	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
+			     "timebase-frequency", bd->bi_busfreq / 4, 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_prop_u32(blob, "device_type", "soc", 4,
+			     "bus-frequency", bd->bi_busfreq, 1);
+
+	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
+
+#ifdef CONFIG_SYS_NS16550
+	do_fixup_by_compat_u32(blob, "ns16550",
+			       "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
+#endif
+
+#ifdef CONFIG_MP
+	/* Reserve the boot page so OSes dont use it */
+	off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
+	if (off < 0)
+		printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
+
+	ft_fixup_num_cores(blob);
+#endif
+
+#ifdef CONFIG_SYS_SRIO
+	ft_srio_setup(blob);
+#endif
+}