From 6dace67f9bd43cdfc2de3ff1a573420ecfc33390 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Fri, 28 Jun 2013 13:42:16 +0900 Subject: [PATCH] ARM: shmobile: lager: Add DT reference This is sufficient to allow boot of the Lager board with a console without boards-lager.c compiled into the kernel. This is an example of a minimal but still useful initialisation of the board using DT as much as possible. As such it is the same as the boot of Lager that can be achieved without a board file. The intention of adding this file is to facilitate further work to allow board specific devices to be initialised via DT. Acked-by: Magnus Damm Signed-off-by: Simon Horman --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/r8a7790-lager-reference.dts | 31 +++++++++++++ arch/arm/mach-shmobile/Kconfig | 11 +++++ arch/arm/mach-shmobile/Makefile | 1 + arch/arm/mach-shmobile/Makefile.boot | 1 + .../arm/mach-shmobile/board-lager-reference.c | 46 +++++++++++++++++++ arch/arm/mach-shmobile/include/mach/r8a7790.h | 1 + arch/arm/mach-shmobile/setup-r8a7790.c | 9 +++- 8 files changed, 99 insertions(+), 2 deletions(-) create mode 100644 arch/arm/boot/dts/r8a7790-lager-reference.dts create mode 100644 arch/arm/mach-shmobile/board-lager-reference.c diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 6d79bde792b7..492a8077396a 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -189,6 +189,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \ r8a7740-armadillo800eva-reference.dtb \ r8a7779-marzen-reference.dtb \ r8a7790-lager.dtb \ + r8a7790-lager-reference.dtb \ sh73a0-kzm9g.dtb \ sh73a0-kzm9g-reference.dtb \ r8a73a4-ape6evm.dtb \ diff --git a/arch/arm/boot/dts/r8a7790-lager-reference.dts b/arch/arm/boot/dts/r8a7790-lager-reference.dts new file mode 100644 index 000000000000..fa5b81bddd53 --- /dev/null +++ b/arch/arm/boot/dts/r8a7790-lager-reference.dts @@ -0,0 +1,31 @@ +/* + * Device Tree Source for the Lager board + * + * Copyright (C) 2013 Renesas Solutions Corp. + * + * 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/ "r8a7790.dtsi" + +/ { + model = "Lager"; + compatible = "renesas,lager-reference", "renesas,r8a7790"; + + chosen { + bootargs = "console=ttySC6,115200 ignore_loglevel"; + }; + + memory@40000000 { + device_type = "memory"; + reg = <0 0x40000000 0 0x80000000>; + }; + + lbsc { + #address-cells = <1>; + #size-cells = <1>; + }; +}; diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index ad28f91b5796..05ea10310a8e 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -161,6 +161,17 @@ config MACH_LAGER depends on ARCH_R8A7790 select USE_OF +config MACH_LAGER_REFERENCE + bool "Lager board - Reference Device Tree Implementation" + depends on ARCH_R8A7790 + select USE_OF + ---help--- + Use reference implementation of Lager 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 26a578420796..397bb36065e0 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_MACH_BOCKW) += board-bockw.o obj-$(CONFIG_MACH_MARZEN) += board-marzen.o obj-$(CONFIG_MACH_MARZEN_REFERENCE) += board-marzen-reference.o obj-$(CONFIG_MACH_LAGER) += board-lager.o +obj-$(CONFIG_MACH_LAGER_REFERENCE) += board-lager-reference.o obj-$(CONFIG_MACH_ARMADILLO800EVA) += board-armadillo800eva.o obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += board-armadillo800eva-reference.o obj-$(CONFIG_MACH_KZM9D) += board-kzm9d.o diff --git a/arch/arm/mach-shmobile/Makefile.boot b/arch/arm/mach-shmobile/Makefile.boot index c938b58f6407..761d7b14bd20 100644 --- a/arch/arm/mach-shmobile/Makefile.boot +++ b/arch/arm/mach-shmobile/Makefile.boot @@ -12,6 +12,7 @@ loadaddr-$(CONFIG_MACH_KZM9D_REFERENCE) += 0x40008000 loadaddr-$(CONFIG_MACH_KZM9G) += 0x41008000 loadaddr-$(CONFIG_MACH_KZM9G_REFERENCE) += 0x41008000 loadaddr-$(CONFIG_MACH_LAGER) += 0x40008000 +loadaddr-$(CONFIG_MACH_LAGER_REFERENCE) += 0x40008000 loadaddr-$(CONFIG_MACH_MACKEREL) += 0x40008000 loadaddr-$(CONFIG_MACH_MARZEN) += 0x60008000 loadaddr-$(CONFIG_MACH_MARZEN_REFERENCE) += 0x60008000 diff --git a/arch/arm/mach-shmobile/board-lager-reference.c b/arch/arm/mach-shmobile/board-lager-reference.c new file mode 100644 index 000000000000..eb6c55e1334a --- /dev/null +++ b/arch/arm/mach-shmobile/board-lager-reference.c @@ -0,0 +1,46 @@ +/* + * Lager board support - Reference DT implementation + * + * Copyright (C) 2013 Renesas Solutions Corp. + * 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 + +void __init lager_add_standard_devices(void) +{ + /* clocks are setup late during boot in the case of DT */ + r8a7790_clock_init(); + + r8a7790_add_dt_devices(); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char *lager_boards_compat_dt[] __initdata = { + "renesas,lager-reference", + NULL, +}; + +DT_MACHINE_START(LAGER_DT, "lager") + .init_early = r8a7790_init_delay, + .init_machine = lager_add_standard_devices, + .init_time = r8a7790_timer_init, + .dt_compat = lager_boards_compat_dt, +MACHINE_END diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h index 7aaef409a059..788d55952091 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7790.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h @@ -2,6 +2,7 @@ #define __ASM_R8A7790_H__ void r8a7790_add_standard_devices(void); +void r8a7790_add_dt_devices(void); void r8a7790_clock_init(void); void r8a7790_pinmux_init(void); void r8a7790_init_delay(void); diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c index 4c96dad21195..86cf507bc957 100644 --- a/arch/arm/mach-shmobile/setup-r8a7790.c +++ b/arch/arm/mach-shmobile/setup-r8a7790.c @@ -179,7 +179,7 @@ static struct resource cmt00_resources[] = { &cmt##idx##_platform_data, \ sizeof(struct sh_timer_config)) -void __init r8a7790_add_standard_devices(void) +void __init r8a7790_add_dt_devices(void) { r8a7790_register_scif(SCIFA0); r8a7790_register_scif(SCIFA1); @@ -191,9 +191,14 @@ void __init r8a7790_add_standard_devices(void) r8a7790_register_scif(SCIF1); r8a7790_register_scif(HSCIF0); r8a7790_register_scif(HSCIF1); + r8a7790_register_cmt(00); +} + +void __init r8a7790_add_standard_devices(void) +{ + r8a7790_add_dt_devices(); r8a7790_register_irqc(0); r8a7790_register_thermal(); - r8a7790_register_cmt(00); } #define MODEMR 0xe6160060 -- 2.20.1