[POWERPC] 83xx: Add MPC832x RDB board support.

Add support for the MPC8323E Reference Development Board (RDB).  The board
is a mini-ITX reference board with 64M DDR2, 16M flash, USB, PCI,
10/100 ethernet, serial, and phone ports.

Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 147 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig
index 713b31a16ce..2a23392bb92 100644
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -18,6 +18,13 @@ config MPC832x_MDS
 	help
 	  This option enables support for the MPC832x MDS evaluation board.
 
+config MPC832x_RDB
+	bool "Freescale MPC832x RDB"
+	select DEFAULT_UIMAGE
+	select QUICC_ENGINE
+	help
+	  This option enables support for the MPC8323 RDB board.
+
 config MPC834x_MDS
 	bool "Freescale MPC834x MDS"
 	select DEFAULT_UIMAGE
@@ -57,7 +64,7 @@ config PPC_MPC832x
 	bool
 	select PPC_UDBG_16550
 	select PPC_INDIRECT_PCI
-	default y if MPC832x_MDS
+	default y if MPC832x_MDS || MPC832x_RDB
 
 config MPC834x
 	bool
diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile
index dfc970d0df1..31a91b53f52 100644
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -4,6 +4,7 @@
 obj-y				:= misc.o
 obj-$(CONFIG_PCI)		+= pci.o
 obj-$(CONFIG_MPC8313_RDB)	+= mpc8313_rdb.o
+obj-$(CONFIG_MPC832x_RDB)	+= mpc832x_rdb.o
 obj-$(CONFIG_MPC834x_MDS)	+= mpc834x_mds.o
 obj-$(CONFIG_MPC834x_ITX)	+= mpc834x_itx.o
 obj-$(CONFIG_MPC836x_MDS)	+= mpc836x_mds.o
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
new file mode 100644
index 00000000000..6b71e9ffb11
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -0,0 +1,138 @@
+/*
+ * arch/powerpc/platforms/83xx/mpc832x_rdb.c
+ *
+ * Copyright (C) Freescale Semiconductor, Inc. 2007. All rights reserved.
+ *
+ * Description:
+ * MPC832x RDB board specific routines.
+ * This file is based on mpc832x_mds.c and mpc8313_rdb.c
+ * Author: Michael Barkowski <michael.barkowski@freescale.com>
+ *
+ * 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/pci.h>
+
+#include <asm/of_platform.h>
+#include <asm/time.h>
+#include <asm/ipic.h>
+#include <asm/udbg.h>
+#include <asm/qe.h>
+#include <asm/qe_ic.h>
+
+#include "mpc83xx.h"
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc832x_rdb_setup_arch(void)
+{
+	struct device_node *np;
+
+	if (ppc_md.progress)
+		ppc_md.progress("mpc832x_rdb_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+		add_bridge(np);
+
+	ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+#endif
+
+#ifdef CONFIG_QUICC_ENGINE
+	qe_reset();
+
+	if ((np = of_find_node_by_name(np, "par_io")) != NULL) {
+		par_io_init(np);
+		of_node_put(np);
+
+		for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
+			par_io_of_config(np);
+	}
+#endif				/* CONFIG_QUICC_ENGINE */
+}
+
+static struct of_device_id mpc832x_ids[] = {
+	{ .type = "soc", },
+	{ .compatible = "soc", },
+	{ .type = "qe", },
+	{},
+};
+
+static int __init mpc832x_declare_of_platform_devices(void)
+{
+	if (!machine_is(mpc832x_rdb))
+		return 0;
+
+	/* Publish the QE devices */
+	of_platform_bus_probe(NULL, mpc832x_ids, NULL);
+
+	return 0;
+}
+device_initcall(mpc832x_declare_of_platform_devices);
+
+void __init mpc832x_rdb_init_IRQ(void)
+{
+
+	struct device_node *np;
+
+	np = of_find_node_by_type(NULL, "ipic");
+	if (!np)
+		return;
+
+	ipic_init(np, 0);
+
+	/* Initialize the default interrupt mapping priorities,
+	 * in case the boot rom changed something on us.
+	 */
+	ipic_set_default_priority();
+	of_node_put(np);
+
+#ifdef CONFIG_QUICC_ENGINE
+	np = of_find_node_by_type(NULL, "qeic");
+	if (!np)
+		return;
+
+	qe_ic_init(np, 0);
+	of_node_put(np);
+#endif				/* CONFIG_QUICC_ENGINE */
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc832x_rdb_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	return of_flat_dt_is_compatible(root, "MPC832xRDB");
+}
+
+define_machine(mpc832x_rdb) {
+	.name		= "MPC832x RDB",
+	.probe		= mpc832x_rdb_probe,
+	.setup_arch	= mpc832x_rdb_setup_arch,
+	.init_IRQ	= mpc832x_rdb_init_IRQ,
+	.get_irq	= ipic_get_irq,
+	.restart	= mpc83xx_restart,
+	.time_init	= mpc83xx_time_init,
+	.calibrate_decr	= generic_calibrate_decr,
+	.progress	= udbg_progress,
+};