ARM: shmobile: bockw: add DT reference

This patch adds a sample DT-based Bock-W "reference" implementation.
The use of platform-specific C-code should be avoided
with this configuration as much as possible.

This patch adds new r8a7778_add_dt_devices() which was same stance
of r8a7790_add_dt_devices()

Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

6 files changed, 85 insertions, 1 deletions

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 05ea10310a8e..9e07985866b7 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -137,6 +137,20 @@ config MACH_BOCKW
         select RENESAS_INTC_IRQPIN
         select USE_OF
 
+config MACH_BOCKW_REFERENCE
+        bool "BOCK-W  - Reference Device Tree Implementation"
+        depends on ARCH_R8A7778
+        select ARCH_REQUIRE_GPIOLIB
+        select RENESAS_INTC_IRQPIN
+        select REGULATOR_FIXED_VOLTAGE if REGULATOR
+        select USE_OF
+        ---help---
+           Use reference implementation of BockW 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_MARZEN
         bool "MARZEN board"
         depends on ARCH_R8A7779
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 397bb36065e0..e401c737fb4d 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_MACH_APE6EVM_REFERENCE)	+= board-ape6evm-reference.o
 obj-$(CONFIG_MACH_MACKEREL)     += board-mackerel.o
 obj-$(CONFIG_MACH_KOTA2)        += board-kota2.o
 obj-$(CONFIG_MACH_BOCKW)        += board-bockw.o
+obj-$(CONFIG_MACH_BOCKW_REFERENCE)      += board-bockw-reference.o
 obj-$(CONFIG_MACH_MARZEN)       += board-marzen.o
 obj-$(CONFIG_MACH_MARZEN_REFERENCE)     += board-marzen-reference.o
 obj-$(CONFIG_MACH_LAGER)        += board-lager.o
diff --git a/arch/arm/mach-shmobile/Makefile.boot b/arch/arm/mach-shmobile/Makefile.boot
index 761d7b14bd20..9c9b4412c60b 100644
--- a/arch/arm/mach-shmobile/Makefile.boot
+++ b/arch/arm/mach-shmobile/Makefile.boot
@@ -6,6 +6,7 @@ loadaddr-$(CONFIG_MACH_APE6EVM_REFERENCE) += 0x40008000
 loadaddr-$(CONFIG_MACH_ARMADILLO800EVA) += 0x40008000
 loadaddr-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += 0x40008000
 loadaddr-$(CONFIG_MACH_BOCKW) += 0x60008000
+loadaddr-$(CONFIG_MACH_BOCKW_REFERENCE) += 0x60008000
 loadaddr-$(CONFIG_MACH_KOTA2) += 0x41008000
 loadaddr-$(CONFIG_MACH_KZM9D) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9D_REFERENCE) += 0x40008000
diff --git a/arch/arm/mach-shmobile/board-bockw-reference.c b/arch/arm/mach-shmobile/board-bockw-reference.c
new file mode 100644
index 000000000000..24db8de73cae
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-bockw-reference.c
@@ -0,0 +1,62 @@
+/*
+ * Bock-W board support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.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; 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/of_platform.h>
+#include <linux/pinctrl/machine.h>
+#include <mach/common.h>
+#include <mach/r8a7778.h>
+#include <asm/mach/arch.h>
+
+/*
+ *      see board-bock.c for checking detail of dip-switch
+ */
+
+static const struct pinctrl_map bockw_pinctrl_map[] = {
+        /* SCIF0 */
+        PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a7778",
+                                  "scif0_data_a", "scif0"),
+        PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a7778",
+                                  "scif0_ctrl", "scif0"),
+};
+
+static void __init bockw_init(void)
+{
+        r8a7778_clock_init();
+
+        pinctrl_register_mappings(bockw_pinctrl_map,
+                                  ARRAY_SIZE(bockw_pinctrl_map));
+        r8a7778_pinmux_init();
+        r8a7778_add_dt_devices();
+
+        of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char *bockw_boards_compat_dt[] __initdata = {
+        "renesas,bockw-reference",
+        NULL,
+};
+
+DT_MACHINE_START(BOCKW_DT, "bockw")
+        .init_early     = r8a7778_init_delay,
+        .init_irq       = r8a7778_init_irq_dt,
+        .init_machine   = bockw_init,
+        .init_time      = shmobile_timer_init,
+        .dt_compat      = bockw_boards_compat_dt,
+MACHINE_END
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index 9b561bf4229f..8d24f73d142f 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -30,6 +30,7 @@ extern void r8a7778_add_usb_phy_device(struct rcar_phy_platform_data *pdata);
 extern void r8a7778_add_i2c_device(int id);
 extern void r8a7778_add_hspi_device(int id);
 extern void r8a7778_add_mmc_device(struct sh_mmcif_plat_data *info);
+extern void r8a7778_add_dt_devices(void);
 
 extern void r8a7778_init_late(void);
 extern void r8a7778_init_delay(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index a3a2e37b03f3..9d4b6bf4245e 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -333,7 +333,7 @@ void __init r8a7778_add_mmc_device(struct sh_mmcif_plat_data *info)
                 info, sizeof(*info));
 }
 
-void __init r8a7778_add_standard_devices(void)
+void __init r8a7778_add_dt_devices(void)
 {
         int i;
 
@@ -357,6 +357,11 @@ void __init r8a7778_add_standard_devices(void)
         r8a7778_register_tmu(1);
 }
 
+void __init r8a7778_add_standard_devices(void)
+{
+        r8a7778_add_dt_devices();
+}
+
 void __init r8a7778_init_late(void)
 {
         phy = usb_get_phy(USB_PHY_TYPE_USB2);