--- /dev/null
+/*
+ * 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 */
+ };
+};
--- /dev/null
+/*
+ * 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
projects / karo-tx-linux.git / commitdiff