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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: 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
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@ -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
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@ -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