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authorSascha Hauer <s.hauer@pengutronix.de>2011-02-11 08:32:18 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2011-02-11 08:33:14 +0100
commitf19693a17c6705e197eb24d4618060eaac1b535c (patch)
treefc39dc23297c0e6be730cb0dfd74a34d9c0b8bfd /arch/mips/ath79/prom.c
parent23b120cdfae4f5c29da69de750d545bad719ead4 (diff)
parent100b33c8bd8a3235fd0b7948338d6cbb3db3c63d (diff)
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Merge commit 'v2.6.38-rc4' into imx-for-2.6.39
Conflicts: arch/arm/mach-mxs/clock-mx28.c Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/mips/ath79/prom.c')
-rw-r--r--arch/mips/ath79/prom.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/mips/ath79/prom.c b/arch/mips/ath79/prom.c
new file mode 100644
index 0000000..e9cbd7c
--- /dev/null
+++ b/arch/mips/ath79/prom.c
@@ -0,0 +1,57 @@
+/*
+ * Atheros AR71XX/AR724X/AR913X specific prom routines
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+
+#include "common.h"
+
+static inline int is_valid_ram_addr(void *addr)
+{
+ if (((u32) addr > KSEG0) &&
+ ((u32) addr < (KSEG0 + ATH79_MEM_SIZE_MAX)))
+ return 1;
+
+ if (((u32) addr > KSEG1) &&
+ ((u32) addr < (KSEG1 + ATH79_MEM_SIZE_MAX)))
+ return 1;
+
+ return 0;
+}
+
+static __init void ath79_prom_init_cmdline(int argc, char **argv)
+{
+ int i;
+
+ if (!is_valid_ram_addr(argv))
+ return;
+
+ for (i = 0; i < argc; i++)
+ if (is_valid_ram_addr(argv[i])) {
+ strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
+ strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline));
+ }
+}
+
+void __init prom_init(void)
+{
+ ath79_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
+}
+
+void __init prom_free_prom_memory(void)
+{
+ /* We do not have to prom memory to free */
+}