[PATCH] RapidIO support: ppc32

Adds PPC32 RIO support.  Init code for the MPC85xx RIO ports and glue for the
STx GP3 board to use it.

Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/arch/ppc/kernel/rio.c b/arch/ppc/kernel/rio.c
new file mode 100644
index 000000000000..29487fedfc76
--- /dev/null
+++ b/arch/ppc/kernel/rio.c
@@ -0,0 +1,52 @@
+/*
+ * RapidIO PPC32 support
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/rio.h>
+
+#include <asm/rio.h>
+
+/**
+ * platform_rio_init - Do platform specific RIO init
+ *
+ * Any platform specific initialization of RapdIO
+ * hardware is done here as well as registration
+ * of any active master ports in the system.
+ */
+void __attribute__ ((weak))
+    platform_rio_init(void)
+{
+        printk(KERN_WARNING "RIO: No platform_rio_init() present\n");
+}
+
+/**
+ * ppc_rio_init - Do PPC32 RIO init
+ *
+ * Calls platform-specific RIO init code and then calls
+ * rio_init_mports() to initialize any master ports that
+ * have been registered with the RIO subsystem.
+ */
+static int __init ppc_rio_init(void)
+{
+        printk(KERN_INFO "RIO: RapidIO init\n");
+
+        /* Platform specific initialization */
+        platform_rio_init();
+
+        /* Enumerate all registered ports */
+        rio_init_mports();
+
+        return 0;
+}
+
+subsys_initcall(ppc_rio_init);