+++ /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/of_platform.h>
-
-#include <asm/mach/arch.h>
-#include <asm/hardware/cache-l2x0.h>
-
-#include "common.h"
-#include "r8a7740.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)
- * LED3-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 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();
-
- r8a7740_meram_workaround();
-
-#ifdef CONFIG_CACHE_L2X0
- /* Shared attribute override enable, 32K*8way */
- l2x0_init(IOMEM(0xf0002000), 0x00400000, 0xc20f0fff);
-#endif
-
- of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-
- r8a7740_pm_init();
-}
-
-#define RESCNT2 IOMEM(0xe6188020)
-static void eva_restart(enum reboot_mode 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 = shmobile_init_delay,
- .init_irq = r8a7740_init_irq_of,
- .init_machine = eva_init,
- .init_late = shmobile_init_late,
- .dt_compat = eva_boards_compat_dt,
- .restart = eva_restart,
-MACHINE_END
projects / cascardo / linux.git / commitdiff