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ARM: shmobile: marzen: Reference DT implementation

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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@verge.net.au>
This commit is contained in:
Simon Horman 2013-01-29 11:40:18 +09:00
parent b3425eb9df
commit 73d6a69e3b
5 changed files with 137 additions and 0 deletions
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1
arch/arm/boot/dts/Makefile
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@ -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 \

47
arch/arm/boot/dts/r8a7779-marzen-reference.dts Normal file
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@ -0,0 +1,47 @@
/*
* 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>;
};
};

13
arch/arm/mach-shmobile/Kconfig
View file

@ -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

1
arch/arm/mach-shmobile/Makefile
View file

@ -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

75
arch/arm/mach-shmobile/board-marzen-reference.c Normal file
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@ -0,0 +1,75 @@
/*
* 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