Initial commit: OpenHarmony-v4.0-ReleaseOpenHarmony-v4.0-Release

1 files changed, 72 insertions, 0 deletions

diff --git a/arch/mips/ralink/prom.c b/arch/mips/ralink/prom.c
new file mode 100644
index 000000000..02e7878dc
--- /dev/null
+++ b/arch/mips/ralink/prom.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *
+ *  Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2010 Joonas Lahtinen <joonas.lahtinen@gmail.com>
+ *  Copyright (C) 2013 John Crispin <john@phrozen.org>
+ */
+
+#include <linux/string.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "common.h"
+
+struct ralink_soc_info soc_info;
+struct rt2880_pmx_group *rt2880_pinmux_data = NULL;
+
+enum ralink_soc_type ralink_soc;
+EXPORT_SYMBOL_GPL(ralink_soc);
+
+const char *get_system_type(void)
+{
+        return soc_info.sys_type;
+}
+
+static __init void prom_init_cmdline(void)
+{
+        int argc;
+        char **argv;
+        int i;
+
+        pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n",
+               (unsigned int)fw_arg0, (unsigned int)fw_arg1,
+               (unsigned int)fw_arg2, (unsigned int)fw_arg3);
+
+        argc = fw_arg0;
+        argv = (char **) KSEG1ADDR(fw_arg1);
+
+        if (!argv) {
+                pr_debug("argv=%p is invalid, skipping\n",
+                       argv);
+                return;
+        }
+
+        for (i = 0; i < argc; i++) {
+                char *p = (char *) KSEG1ADDR(argv[i]);
+
+                if (CPHYSADDR(p) && *p) {
+                        pr_debug("argv[%d]: %s\n", i, p);
+                        strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
+                        strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
+                }
+        }
+}
+
+void __init prom_init(void)
+{
+        prom_soc_init(&soc_info);
+
+        pr_info("SoC Type: %s\n", get_system_type());
+
+        prom_init_cmdline();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}