diff options
| -rw-r--r-- | arch/arm/boot/dts/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts | 45 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/Kconfig | 14 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-armadillo800eva-reference.c | 213 |
5 files changed, 274 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index b9f7121e6ecf..cb312592342b 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -162,6 +162,7 @@ dtb-$(CONFIG_ARCH_U8500) += snowball.dtb \ dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \ r8a7740-armadillo800eva.dtb \ r8a7778-bockw.dtb \ + r8a7740-armadillo800eva-reference.dtb \ r8a7779-marzen-reference.dtb \ r8a7790-lager.dtb \ sh73a0-kzm9g.dtb \ diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts new file mode 100644 index 000000000000..09ea22c26359 --- /dev/null +++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts @@ -0,0 +1,45 @@ +/* + * Reference Device Tree Source for the armadillo 800 eva board + * + * Copyright (C) 2012 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/ "r8a7740.dtsi" + +/ { + model = "armadillo 800 eva reference"; + compatible = "renesas,armadillo800eva-reference", "renesas,r8a7740"; + + chosen { + bootargs = "console=tty0 console=ttySC1,115200 earlyprintk=sh-sci.1,115200 ignore_loglevel root=/dev/nfs ip=dhcp nfsroot=,rsize=4096,wsize=4096 rw"; + }; + + memory { + device_type = "memory"; + reg = <0x40000000 0x20000000>; + }; + + reg_3p3v: regulator@0 { + compatible = "regulator-fixed"; + regulator-name = "fixed-3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + }; + +}; + +&i2c0 { + touchscreen: st1232@55 { + compatible = "sitronix,st1232"; + reg = <0x55>; + interrupt-parent = <&irqpin1>; + interrupts = <2 0>; /* IRQ10: hwirq 2 on irqpin1 */ + }; +}; diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 1a517e2fe449..c6fb9ec8d15b 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -129,6 +129,20 @@ config MACH_ARMADILLO800EVA select SND_SOC_WM8978 if SND_SIMPLE_CARD select USE_OF +config MACH_ARMADILLO800EVA_REFERENCE + bool "Armadillo-800 EVA board - Reference Device Tree Implementation" + depends on ARCH_R8A7740 + select ARCH_REQUIRE_GPIOLIB + select REGULATOR_FIXED_VOLTAGE if REGULATOR + select SND_SOC_WM8978 if SND_SIMPLE_CARD + select USE_OF + ---help--- + Use reference implementation of Aramdillo800 EVA board support + which makes a greater use of device tree at the expense + of not supporting a number of devices. + + This is intended to aid developers + config MACH_BOCKW bool "BOCK-W platform" depends on ARCH_R8A7778 diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index 068f1dadc46b..812de0452307 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -46,6 +46,7 @@ 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_ARMADILLO800EVA) += board-armadillo800eva.o +obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += board-armadillo800eva-reference.o obj-$(CONFIG_MACH_KZM9D) += board-kzm9d.o obj-$(CONFIG_MACH_KZM9G) += board-kzm9g.o obj-$(CONFIG_MACH_KZM9G_REFERENCE) += board-kzm9g-reference.o diff --git a/arch/arm/mach-shmobile/board-armadillo800eva-reference.c b/arch/arm/mach-shmobile/board-armadillo800eva-reference.c new file mode 100644 index 000000000000..03b85fec2ddb --- /dev/null +++ b/arch/arm/mach-shmobile/board-armadillo800eva-reference.c @@ -0,0 +1,213 @@ +/* + * armadillo 800 eva board support + * + * Copyright (C) 2012 Renesas Solutions Corp. + * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * 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/clk.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/io.h> +#include <linux/pinctrl/machine.h> +#include <mach/common.h> +#include <mach/r8a7740.h> +#include <asm/mach/arch.h> +#include <asm/hardware/cache-l2x0.h> + +/* + * CON1 Camera Module + * CON2 Extension Bus + * CON3 HDMI Output + * CON4 Composite Video Output + * CON5 H-UDI JTAG + * CON6 ARM JTAG + * CON7 SD1 + * CON8 SD2 + * CON9 RTC BackUp + * CON10 Monaural Mic Input + * CON11 Stereo Headphone Output + * CON12 Audio Line Output(L) + * CON13 Audio Line Output(R) + * CON14 AWL13 Module + * CON15 Extension + * CON16 LCD1 + * CON17 LCD2 + * CON19 Power Input + * CON20 USB1 + * CON21 USB2 + * CON22 Serial + * CON23 LAN + * CON24 USB3 + * LED1 Camera LED(Yellow) + * LED2 Power LED (Green) + * ED3-LED6 User LED(Yellow) + * LED7 LAN link LED(Green) + * LED8 LAN activity LED(Yellow) + */ + +/* + * DipSwitch + * + * SW1 + * + * -12345678-+---------------+---------------------------- + * 1 | boot | hermit + * 0 | boot | OS auto boot + * -12345678-+---------------+---------------------------- + * 00 | boot device | eMMC + * 10 | boot device | SDHI0 (CON7) + * 01 | boot device | - + * 11 | boot device | Extension Buss (CS0) + * -12345678-+---------------+---------------------------- + * 0 | Extension Bus | D8-D15 disable, eMMC enable + * 1 | Extension Bus | D8-D15 enable, eMMC disable + * -12345678-+---------------+---------------------------- + * 0 | SDHI1 | COM8 disable, COM14 enable + * 1 | SDHI1 | COM8 enable, COM14 disable + * -12345678-+---------------+---------------------------- + * 0 | USB0 | COM20 enable, COM24 disable + * 1 | USB0 | COM20 disable, COM24 enable + * -12345678-+---------------+---------------------------- + * 00 | JTAG | SH-X2 + * 10 | JTAG | ARM + * 01 | JTAG | - + * 11 | JTAG | Boundary Scan + *-----------+---------------+---------------------------- + */ + +/* + * FSI-WM8978 + * + * this command is required when playback. + * + * # amixer set "Headphone" 50 + * + * this command is required when capture. + * + * # amixer set "Input PGA" 15 + * # amixer set "Left Input Mixer MicP" on + * # amixer set "Left Input Mixer MicN" on + * # amixer set "Right Input Mixer MicN" on + * # amixer set "Right Input Mixer MicP" on + */ + +/* + * USB function + * + * When you use USB Function, + * set SW1.6 ON, and connect cable to CN24. + * + * USBF needs workaround on R8A7740 chip. + * These are a little bit complex. + * see + * usbhsf_power_ctrl() + */ + +static const struct pinctrl_map eva_pinctrl_map[] = { + /* SCIFA1 */ + PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.1", "pfc-r8a7740", + "scifa1_data", "scifa1"), +}; + +static void __init eva_clock_init(void) +{ + struct clk *system = clk_get(NULL, "system_clk"); + struct clk *xtal1 = clk_get(NULL, "extal1"); + struct clk *usb24s = clk_get(NULL, "usb24s"); + struct clk *fsibck = clk_get(NULL, "fsibck"); + + if (IS_ERR(system) || + IS_ERR(xtal1) || + IS_ERR(usb24s) || + IS_ERR(fsibck)) { + pr_err("armadillo800eva board clock init failed\n"); + goto clock_error; + } + + /* armadillo 800 eva extal1 is 24MHz */ + clk_set_rate(xtal1, 24000000); + + /* usb24s use extal1 (= system) clock (= 24MHz) */ + clk_set_parent(usb24s, system); + + /* FSIBCK is 12.288MHz, and it is parent of FSI-B */ + clk_set_rate(fsibck, 12288000); + +clock_error: + if (!IS_ERR(system)) + clk_put(system); + if (!IS_ERR(xtal1)) + clk_put(xtal1); + if (!IS_ERR(usb24s)) + clk_put(usb24s); + if (!IS_ERR(fsibck)) + clk_put(fsibck); +} + +/* + * board init + */ +static void __init eva_init(void) +{ + + r8a7740_clock_init(MD_CK0 | MD_CK2); + eva_clock_init(); + + pinctrl_register_mappings(eva_pinctrl_map, ARRAY_SIZE(eva_pinctrl_map)); + r8a7740_pinmux_init(); + + r8a7740_meram_workaround(); + + /* + * Touchscreen + * TODO: Move reset GPIO over to .dts when we can reference it + */ + gpio_request_one(166, GPIOF_OUT_INIT_HIGH, NULL); /* TP_RST_B */ + +#ifdef CONFIG_CACHE_L2X0 + /* Early BRESP enable, Shared attribute override enable, 32K*8way */ + l2x0_init(IOMEM(0xf0002000), 0x40440000, 0x82000fff); +#endif + + r8a7740_add_standard_devices_dt(); + r8a7740_pm_init(); +} + +#define RESCNT2 IOMEM(0xe6188020) +static void eva_restart(char mode, const char *cmd) +{ + /* Do soft power on reset */ + writel((1 << 31), RESCNT2); +} + +static const char *eva_boards_compat_dt[] __initdata = { + "renesas,armadillo800eva-reference", + NULL, +}; + +DT_MACHINE_START(ARMADILLO800EVA_DT, "armadillo800eva-reference") + .map_io = r8a7740_map_io, + .init_early = r8a7740_init_delay, + .init_irq = r8a7740_init_irq_of, + .init_machine = eva_init, + .init_time = shmobile_timer_init, + .init_late = shmobile_init_late, + .dt_compat = eva_boards_compat_dt, + .restart = eva_restart, +MACHINE_END |