[PATCH 04/11] [POWERPC] Add generic support for MPC5200 based boards

[Marian Balakowicz]

This patch adds support for 'generic-mpc5200' compatible
boards which do not need a platform specific setup.

Signed-off-by: Marian Balakowicz <m8 at semihalf.com>
---

 arch/powerpc/platforms/52xx/Kconfig           |    8 ++-
 arch/powerpc/platforms/52xx/Makefile          |    1 
 arch/powerpc/platforms/52xx/generic_mpc5200.c |   63 +++++++++++++++++++++++++
 3 files changed, 70 insertions(+), 2 deletions(-)
 create mode 100644 arch/powerpc/platforms/52xx/generic_mpc5200.c


diff --git a/arch/powerpc/platforms/52xx/Kconfig b/arch/powerpc/platforms/52xx/Kconfig
index 2938d49..59c67b5 100644
--- a/arch/powerpc/platforms/52xx/Kconfig
+++ b/arch/powerpc/platforms/52xx/Kconfig
@@ -19,6 +19,12 @@ config PPC_MPC5200_BUGFIX
 
 	  It is safe to say 'Y' here
 
+config PPC_GENERIC_MPC5200
+	bool "Generic support for MPC5200 based boards"
+	depends on PPC_MULTIPLATFORM && PPC32
+	select PPC_MPC5200
+	default n
+
 config PPC_EFIKA
 	bool "bPlan Efika 5k2. MPC5200B based computer"
 	depends on PPC_MULTIPLATFORM && PPC32
@@ -34,5 +40,3 @@ config PPC_LITE5200
 	select WANT_DEVICE_TREE
 	select PPC_MPC5200
 	default n
-
-
diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile
index 307dbc1..bea05df 100644
--- a/arch/powerpc/platforms/52xx/Makefile
+++ b/arch/powerpc/platforms/52xx/Makefile
@@ -6,6 +6,7 @@ obj-y				+= mpc52xx_pic.o mpc52xx_common.o
 obj-$(CONFIG_PCI)		+= mpc52xx_pci.o
 endif
 
+obj-$(CONFIG_PPC_GENERIC_MPC5200) += generic_mpc5200.o
 obj-$(CONFIG_PPC_EFIKA)		+= efika.o
 obj-$(CONFIG_PPC_LITE5200)	+= lite5200.o
 
diff --git a/arch/powerpc/platforms/52xx/generic_mpc5200.c b/arch/powerpc/platforms/52xx/generic_mpc5200.c
new file mode 100644
index 0000000..a4ec899
--- /dev/null
+++ b/arch/powerpc/platforms/52xx/generic_mpc5200.c
@@ -0,0 +1,63 @@
+/*
+ * Support for 'generic-mpc5200' compatible platforms.
+ *
+ * Written by Marian Balakowicz <m8 at semihalf.com>
+ * Copyright (C) 2007 Semihalf
+ *
+ * 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.
+ */
+
+#undef DEBUG
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/of.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/mpc52xx.h>
+
+/*
+ * Setup the architecture
+ */
+static void __init generic_mpc5200_setup_arch(void)
+{
+	if (ppc_md.progress)
+		ppc_md.progress("generic_mpc5200_setup_arch()", 0);
+
+	/* Some mpc5200 & mpc5200b related configuration */
+	mpc5200_setup_xlb_arbiter();
+
+	/* Map wdt for mpc52xx_restart() */
+	mpc52xx_map_wdt();
+
+#ifdef CONFIG_PCI
+	mpc52xx_setup_pci();
+#endif
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init generic_mpc5200_probe(void)
+{
+	unsigned long node = of_get_flat_dt_root();
+
+	if (!of_flat_dt_is_compatible(node, "generic-mpc5200"))
+		return 0;
+	return 1;
+}
+
+define_machine(generic_mpc5200) {
+	.name		= "generic-mpc5200",
+	.probe		= generic_mpc5200_probe,
+	.setup_arch	= generic_mpc5200_setup_arch,
+	.init		= mpc52xx_declare_of_platform_devices,
+	.init_IRQ	= mpc52xx_init_irq,
+	.get_irq	= mpc52xx_get_irq,
+	.restart	= mpc52xx_restart,
+	.calibrate_decr	= generic_calibrate_decr,
+};