[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 713b31a16ce9..2a23392bb92e 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 dfc970d0df10..31a91b53f528 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 000000000000..6b71e9ffb11a
--- /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,
+};