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Commit 73d6a69e authored by Simon Horman's avatar Simon Horman
Browse files

ARM: shmobile: marzen: Reference DT implementation 



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: default avatarSimon Horman <horms+renesas@verge.net.au>
parent b3425eb9

arch/arm/boot/dts/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -136,6 +136,7 @@ dtb-$(CONFIG_ARCH_U8500) += snowball.dtb \ 
	ccu9540.dtb

dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \

	r8a7740-armadillo800eva.dtb \

	r8a7779-marzen-reference.dtb \

	sh73a0-kzm9g.dtb \

	sh7372-mackerel.dtb

dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_cyclone5.dtb \

arch/arm/boot/dts/r8a7779-marzen-reference.dts

0 → 100644
+47 −0
Original line number Diff line number Diff line 
/*

 * 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@0 {

		compatible = "regulator-fixed";

		regulator-name = "fixed-3.3V";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		regulator-boot-on;

		regulator-always-on;

	};



	lan0@18000000 {

		compatible = "smsc,lan9220", "smsc,lan9115";

		reg = <0x18000000 0x100>;

		phy-mode = "mii";

		interrupt-parent = <&gic>;

		interrupts = <0 28 0x4>;

		reg-io-width = <4>;

		vddvario-supply = <&fixedregulator3v3>;

		vdd33a-supply = <&fixedregulator3v3>;

	};

};

arch/arm/mach-shmobile/Kconfig

+13 −0
Original line number Diff line number Diff line
@@ -102,6 +102,19 @@ 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 ARCH_R8A7779

	select ARCH_REQUIRE_GPIOLIB

	select REGULATOR_FIXED_VOLTAGE if REGULATOR

	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

arch/arm/mach-shmobile/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ obj-$(CONFIG_MACH_MACKEREL) += board-mackerel.o 
obj-$(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_KZM9D)	+= board-kzm9d.o

obj-$(CONFIG_MACH_KZM9G)	+= board-kzm9g.o

arch/arm/mach-shmobile/board-marzen-reference.c

0 → 100644
+75 −0
Original line number Diff line number Diff line 
/*

 * 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/pinctrl/machine.h>

#include <mach/r8a7779.h>

#include <mach/common.h>

#include <mach/irqs.h>

#include <asm/irq.h>

#include <asm/mach/arch.h>



static const struct pinctrl_map marzen_pinctrl_map[] = {

	/* SCIF2 (CN18: DEBUG0) */

	PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.2", "pfc-r8a7779",

				  "scif2_data_c", "scif2"),

	/* SCIF4 (CN19: DEBUG1) */

	PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.4", "pfc-r8a7779",

				  "scif4_data", "scif4"),

	/* SDHI0 */

	PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7779",

				  "sdhi0_data4", "sdhi0"),

	PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7779",

				  "sdhi0_ctrl", "sdhi0"),

	PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7779",

				  "sdhi0_cd", "sdhi0"),

	PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7779",

				  "sdhi0_wp", "sdhi0"),

	/* SMSC */

	PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a7779",

				  "intc_irq1_b", "intc"),

	PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a7779",

				  "lbsc_ex_cs0", "lbsc"),

};



static void __init marzen_init(void)

{

	pinctrl_register_mappings(marzen_pinctrl_map,

				  ARRAY_SIZE(marzen_pinctrl_map));

	r8a7779_pinmux_init();



	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_init_delay,

	.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