[PATCH 4/4] ARM: mach-shmobile: marzen: Reference DT implementation
Simon Horman
horms+renesas at verge.net.au
Wed Jan 30 20:50:51 EST 2013
Provide alternate board code for the marzen to demonstrate
how DT may be used given the current state of driver
device tree support. This is intended to act as a reference
for mach-shmobile developers.
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/r8a7779-marzen-reference.dts | 41 +++++++++++++
arch/arm/mach-shmobile/Kconfig | 11 ++++
arch/arm/mach-shmobile/Makefile | 1 +
arch/arm/mach-shmobile/board-marzen-reference.c | 71 +++++++++++++++++++++++
5 files changed, 125 insertions(+)
create mode 100644 arch/arm/boot/dts/r8a7779-marzen-reference.dts
create mode 100644 arch/arm/mach-shmobile/board-marzen-reference.c
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 2c6f9ef..6dfa67a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -123,6 +123,7 @@ dtb-$(CONFIG_ARCH_U8500) += snowball.dtb \
dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
r8a7740-armadillo800eva.dtb \
r8a7740-armadillo800eva-reference.dtb \
+ r8a7779-marzen-reference.dtb \
sh73a0-kzm9g.dtb \
sh73a0-kzm9g-reference.dtb \
sh7372-mackerel.dtb \
diff --git a/arch/arm/boot/dts/r8a7779-marzen-reference.dts b/arch/arm/boot/dts/r8a7779-marzen-reference.dts
new file mode 100644
index 0000000..377d8df
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7779-marzen-reference.dts
@@ -0,0 +1,41 @@
+/*
+ * Reference Device Tree Source for the Marzen board
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Simon Horman
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+/include/ "r8a7779.dtsi"
+
+/ {
+ model = "marzen";
+ compatible = "renesas,marzen-reference", "renesas,r8a7779";
+
+ chosen {
+ bootargs = "console=ttySC2,115200 earlyprintk=sh-sci.2,115200 ignore_loglevel root=/dev/nfs ip=on";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x60000000 0x40000000>;
+ };
+
+ fixedregulator3v3: fixedregulator at 0 {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+};
+
+&lan0 {
+ vddvario-supply = <&fixedregulator3v3>;
+ vdd33a-supply = <&fixedregulator3v3>;
+};
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 5f61e8f..4695bf8 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -120,6 +120,17 @@ config MACH_MARZEN
select ARCH_REQUIRE_GPIOLIB
select REGULATOR_FIXED_VOLTAGE if REGULATOR
+config MACH_MARZEN_REFERENCE
+ bool "MARZEN board - Reference Device Tree Implementation"
+ depends on MACH_MARZEN
+ select USE_OF
+ ---help---
+ Use reference implementation of Marzen 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_KZM9D
bool "KZM9D board"
depends on ARCH_EMEV2
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index fd7ec65..6ab7ee2 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_MACH_MACKEREL_REFERENCE) += board-mackerel-reference.o
obj-$(CONFIG_MACH_KOTA2) += board-kota2.o
obj-$(CONFIG_MACH_BONITO) += board-bonito.o
obj-$(CONFIG_MACH_MARZEN) += board-marzen.o
+obj-$(CONFIG_MACH_MARZEN_REFERENCE) += board-marzen-reference.o
obj-$(CONFIG_MACH_ARMADILLO800EVA) += board-armadillo800eva.o
obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += board-armadillo800eva-reference.o
obj-$(CONFIG_MACH_KZM9D) += board-kzm9d.o
diff --git a/arch/arm/mach-shmobile/board-marzen-reference.c b/arch/arm/mach-shmobile/board-marzen-reference.c
new file mode 100644
index 0000000..012548f
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-marzen-reference.c
@@ -0,0 +1,71 @@
+/*
+ * marzen board support - Reference DT implementation
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2011 Magnus Damm
+ * Copyright (C) 2013 Simon Horman
+ *
+ * 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/gpio.h>
+#include <mach/r8a7779.h>
+#include <mach/common.h>
+#include <mach/irqs.h>
+#include <asm/mach/arch.h>
+
+static void __init marzen_init(void)
+{
+ r8a7779_pinmux_init();
+
+ /* SCIF2 (CN18: DEBUG0) */
+ gpio_request(GPIO_FN_TX2_C, NULL);
+ gpio_request(GPIO_FN_RX2_C, NULL);
+
+ /* SCIF4 (CN19: DEBUG1) */
+ gpio_request(GPIO_FN_TX4, NULL);
+ gpio_request(GPIO_FN_RX4, NULL);
+
+ /* LAN89218 */
+ gpio_request(GPIO_FN_EX_CS0, NULL); /* nCS */
+ gpio_request(GPIO_FN_IRQ1_B, NULL); /* IRQ + PME */
+
+ /* SD0 (CN20) */
+ gpio_request(GPIO_FN_SD0_CLK, NULL);
+ gpio_request(GPIO_FN_SD0_CMD, NULL);
+ gpio_request(GPIO_FN_SD0_DAT0, NULL);
+ gpio_request(GPIO_FN_SD0_DAT1, NULL);
+ gpio_request(GPIO_FN_SD0_DAT2, NULL);
+ gpio_request(GPIO_FN_SD0_DAT3, NULL);
+ gpio_request(GPIO_FN_SD0_CD, NULL);
+ gpio_request(GPIO_FN_SD0_WP, NULL);
+
+ r8a7779_add_standard_devices_dt();
+}
+
+static const char *marzen_boards_compat_dt[] __initdata = {
+ "renesas,marzen-reference",
+ NULL,
+};
+
+DT_MACHINE_START(MARZEN, "marzen")
+ .smp = smp_ops(r8a7779_smp_ops),
+ .map_io = r8a7779_map_io,
+ .init_early = r8a7779_add_early_devices_dt,
+ .nr_irqs = NR_IRQS_LEGACY,
+ .init_irq = r8a7779_init_irq_dt,
+ .init_machine = marzen_init,
+ .init_time = shmobile_timer_init,
+ .dt_compat = marzen_boards_compat_dt,
+MACHINE_END
--
1.7.10.4
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