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

source/bootloader/u-boot-2020.01/arch/powerpc/cpu/mpc85xx/portals.c

@@ -0,0 +1,74 @@
+// 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/processor.h>
+#include <asm/io.h>
+
+#include <asm/fsl_portals.h>
+#include <asm/fsl_liodn.h>
+
+/* Update portal containter to match LAW setup of portal in phy map */
+void fdt_portal(void *blob, const char *compat, const char *container,
+			u64 addr, u32 size)
+{
+	int off;
+
+	off = fdt_node_offset_by_compatible(blob, -1, compat);
+	if (off < 0)
+		return ;
+
+	off = fdt_parent_offset(blob, off);
+	/* if non-zero assume we have a container */
+	if (off > 0) {
+		char buf[60];
+		const char *p, *name;
+		u32 *range;
+		int len;
+
+		/* fixup ranges */
+		range = fdt_getprop_w(blob, off, "ranges", &len);
+		if (range == NULL) {
+			printf("ERROR: container for %s has no ranges", compat);
+			return ;
+		}
+
+		range[0] = 0;
+		if (len == 16) {
+			range[1] = addr >> 32;
+			range[2] = addr & 0xffffffff;
+			range[3] = size;
+		} else {
+			range[1] = addr & 0xffffffff;
+			range[2] = size;
+		}
+		fdt_setprop_inplace(blob, off, "ranges", range, len);
+
+		/* fixup the name */
+		name = fdt_get_name(blob, off, &len);
+		p = memchr(name, '@', len);
+
+		if (p)
+			len = p - name;
+
+		/* if we are given a container name check it
+		 * against what we found, if it doesnt match exit out */
+		if (container && (memcmp(container, name, len))) {
+			printf("WARNING: container names didn't match %s %s\n",
+				container, name);
+			return ;
+		}
+
+		memcpy(&buf, name, len);
+		len += sprintf(&buf[len], "@%llx", addr);
+		fdt_set_name(blob, off, buf);
+		return ;
+	}
+
+	printf("ERROR: %s isn't in a container.  Not supported\n", compat);
+}