powerpc/83xx: new board support: MPC8360E-RDK

This is patch adds board file, device tree, and defconfig for the new
board, made by Freescale Semiconductor Inc. and Logic Product Development.

Currently supported:
1. UEC{1,2,7,4};
2. I2C;
3. SPI;
4. NS16550 serial;
5. PCI and miniPCI;
6. Intel NOR StrataFlash X16 64Mbit PC28F640P30T85;
7. Graphics controller, Fujitsu MB86277.

Not supported in this patch:
1. StMICRO NAND512W3A2BN6E, 512 Mbit (supported with FSL UPM NAND driver);
2. FHCI USB (supported with FHCI driver).
3. QE Serial UCCs (tested to not work with ucc_uart driver, reason
   unknown, yet);
4. ADC AD7843 (tested to work, but support via device tree depends on
   major SPI rework, GPIO API, etc);

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 114 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig
index 583b0c7409c..fe75b2ac3c9 100644
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -58,6 +58,17 @@ config MPC836x_MDS
 	help
 	  This option enables support for the MPC836x MDS Processor Board.
 
+config MPC836x_RDK
+	bool "Freescale/Logic MPC836x RDK"
+	select DEFAULT_UIMAGE
+	select QUICC_ENGINE
+	select QE_GPIO
+	select FSL_GTM
+	select FSL_LBC
+	help
+	  This option enables support for the MPC836x RDK Processor Board,
+	  also known as ZOOM PowerQUICC Kit.
+
 config MPC837x_MDS
 	bool "Freescale MPC837x MDS"
 	select DEFAULT_UIMAGE
diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile
index 76494bed69a..f331fd7dd83 100644
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -8,6 +8,7 @@ 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
+obj-$(CONFIG_MPC836x_RDK)	+= mpc836x_rdk.o
 obj-$(CONFIG_MPC832x_MDS)	+= mpc832x_mds.o
 obj-$(CONFIG_MPC837x_MDS)	+= mpc837x_mds.o
 obj-$(CONFIG_SBC834x)		+= sbc834x.o
diff --git a/arch/powerpc/platforms/83xx/mpc836x_rdk.c b/arch/powerpc/platforms/83xx/mpc836x_rdk.c
new file mode 100644
index 00000000000..c10dec4bf17
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc836x_rdk.c
@@ -0,0 +1,102 @@
+/*
+ * MPC8360E-RDK board file.
+ *
+ * Copyright (c) 2006  Freescale Semicondutor, Inc.
+ * Copyright (c) 2007-2008  MontaVista Software, Inc.
+ *
+ * Author: Anton Vorontsov <avorontsov@ru.mvista.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/kernel.h>
+#include <linux/pci.h>
+#include <linux/of_platform.h>
+#include <linux/io.h>
+#include <asm/prom.h>
+#include <asm/time.h>
+#include <asm/ipic.h>
+#include <asm/udbg.h>
+#include <asm/qe.h>
+#include <asm/qe_ic.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc83xx.h"
+
+static struct of_device_id __initdata mpc836x_rdk_ids[] = {
+	{ .compatible = "simple-bus", },
+	{},
+};
+
+static int __init mpc836x_rdk_declare_of_platform_devices(void)
+{
+	return of_platform_bus_probe(NULL, mpc836x_rdk_ids, NULL);
+}
+machine_device_initcall(mpc836x_rdk, mpc836x_rdk_declare_of_platform_devices);
+
+static void __init mpc836x_rdk_setup_arch(void)
+{
+#ifdef CONFIG_PCI
+	struct device_node *np;
+#endif
+
+	if (ppc_md.progress)
+		ppc_md.progress("mpc836x_rdk_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+	for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
+		mpc83xx_add_bridge(np);
+#endif
+
+	qe_reset();
+}
+
+static void __init mpc836x_rdk_init_IRQ(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,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);
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+	if (!np)
+		return;
+
+	qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
+	of_node_put(np);
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened.
+ */
+static int __init mpc836x_rdk_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	return of_flat_dt_is_compatible(root, "fsl,mpc8360rdk");
+}
+
+define_machine(mpc836x_rdk) {
+	.name		= "MPC836x RDK",
+	.probe		= mpc836x_rdk_probe,
+	.setup_arch	= mpc836x_rdk_setup_arch,
+	.init_IRQ	= mpc836x_rdk_init_IRQ,
+	.get_irq	= ipic_get_irq,
+	.restart	= mpc83xx_restart,
+	.time_init	= mpc83xx_time_init,
+	.calibrate_decr	= generic_calibrate_decr,
+	.progress	= udbg_progress,
+};