From: Simon Horman Date: Tue, 29 Jan 2013 02:40:18 +0000 (+0900) Subject: ARM: mach-shmobile: marzen: Reference DT implementation X-Git-Tag: next-20130220~14^2^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=866e94c51bb7c0dadcd6ea2564b08af494823afb;p=karo-tx-linux.git ARM: mach-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 --- diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index e44da40d984f..a34aa93d8a88 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -122,6 +122,7 @@ 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_SPEAR13XX) += spear1310-evb.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 000000000000..377d8dfc6b34 --- /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@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 9255546e7bf6..b15d4ffcd9a2 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -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 diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index 481e4aa5e309..17395eb84ae0 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -46,6 +46,7 @@ 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 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 000000000000..47df64d1089e --- /dev/null +++ b/arch/arm/mach-shmobile/board-marzen-reference.c @@ -0,0 +1,72 @@ +/* + * 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 +#include +#include +#include +#include +#include + +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