ARM: shmobile: r8a7791 Koelsch DT reference C bits

Add DT reference support for the r8a7791 Koelsch board.

This board support file will be used together with common
clocks and multiplatform in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

4 files changed, 59 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index aa9017bb750c..8eac47fef8dc 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -240,6 +240,17 @@ config MACH_KOELSCH
         depends on ARCH_R8A7791
         select USE_OF
 
+config MACH_KOELSCH_REFERENCE
+        bool "Koelsch board - Reference Device Tree Implementation"
+        depends on ARCH_R8A7791
+        select USE_OF
+        ---help---
+           Use reference implementation of Koelsch board support
+           which makes use of device tree at the expense
+           of not supporting a number of devices.
+
+           This is intended to aid developers
+
 config MACH_KZM9G
         bool "KZM-A9-GT board"
         depends on ARCH_SH73A0
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index c7e877499dc2..8bca9b56352e 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -71,6 +71,7 @@ obj-$(CONFIG_MACH_LAGER_REFERENCE)	+= board-lager-reference.o
 obj-$(CONFIG_MACH_ARMADILLO800EVA)      += board-armadillo800eva.o
 obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE)    += board-armadillo800eva-reference.o
 obj-$(CONFIG_MACH_KOELSCH)      += board-koelsch.o
+obj-$(CONFIG_MACH_KOELSCH_REFERENCE)    += board-koelsch-reference.o
 obj-$(CONFIG_MACH_KZM9G)        += board-kzm9g.o
 obj-$(CONFIG_MACH_KZM9G_REFERENCE)      += board-kzm9g-reference.o
 endif
diff --git a/arch/arm/mach-shmobile/Makefile.boot b/arch/arm/mach-shmobile/Makefile.boot
index 4f30e3dc0919..892d4ab8b23d 100644
--- a/arch/arm/mach-shmobile/Makefile.boot
+++ b/arch/arm/mach-shmobile/Makefile.boot
@@ -8,6 +8,7 @@ loadaddr-$(CONFIG_MACH_BOCKW) += 0x60008000
 loadaddr-$(CONFIG_MACH_BOCKW_REFERENCE) += 0x60008000
 loadaddr-$(CONFIG_MACH_GENMAI) += 0x8008000
 loadaddr-$(CONFIG_MACH_KOELSCH) += 0x40008000
+loadaddr-$(CONFIG_MACH_KOELSCH_REFERENCE) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9G) += 0x41008000
 loadaddr-$(CONFIG_MACH_KZM9G_REFERENCE) += 0x41008000
 loadaddr-$(CONFIG_MACH_LAGER) += 0x40008000
diff --git a/arch/arm/mach-shmobile/board-koelsch-reference.c b/arch/arm/mach-shmobile/board-koelsch-reference.c
new file mode 100644
index 000000000000..beecc8bb510f
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-koelsch-reference.c
@@ -0,0 +1,46 @@
+/*
+ * Koelsch board support - Reference DT implementation
+ *
+ * Copyright (C) 2013  Renesas Electronics Corporation
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+#include <mach/rcar-gen2.h>
+#include <mach/r8a7791.h>
+#include <asm/mach/arch.h>
+
+static void __init koelsch_add_standard_devices(void)
+{
+        r8a7791_clock_init();
+        r8a7791_add_dt_devices();
+        of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char * const koelsch_boards_compat_dt[] __initconst = {
+        "renesas,koelsch-reference",
+        NULL,
+};
+
+DT_MACHINE_START(KOELSCH_DT, "koelsch")
+        .smp            = smp_ops(r8a7791_smp_ops),
+        .init_early     = r8a7791_init_early,
+        .init_time      = rcar_gen2_timer_init,
+        .init_machine   = koelsch_add_standard_devices,
+        .dt_compat      = koelsch_boards_compat_dt,
+MACHINE_END