arm/mach-pxa: add mioa701 board

Add Mitac MioA701 board initial support.
The support provides basic boot and :
 - a console over USB (serial gadget).
 - the SD card support
 - the MTD docg3 support
 - the LCD support

Add a check in the default environment for a barebox.env
file on the first partition (FAT). If the file exists,
source it instead of the normal boot procedure.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 278 insertions, 0 deletions

diff --git a/arch/arm/boards/mioa701/board.c b/arch/arm/boards/mioa701/board.c
new file mode 100644
index 0000000000..6a67a03edb
--- /dev/null
+++ b/arch/arm/boards/mioa701/board.c
@@ -0,0 +1,278 @@
+/*
+ * (C) 2011 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <environment.h>
+#include <fs.h>
+#include <init.h>
+#include <partition.h>
+#include <led.h>
+#include <gpio.h>
+#include <pwm.h>
+
+#include <mach/devices.h>
+#include <mach/mfp-pxa27x.h>
+#include <mach/pxa-regs.h>
+#include <mach/udc_pxa2xx.h>
+#include <mach/mci_pxa2xx.h>
+
+#include <asm/armlinux.h>
+#include <asm/io.h>
+#include <generated/mach-types.h>
+#include <asm/mmu.h>
+
+#include "mioa701.h"
+
+/*
+ * LTM0305A776C LCD panel timings
+ *
+ * see:
+ *  - the LTM0305A776C datasheet,
+ *  - and the PXA27x Programmers' manual
+ */
+static struct pxafb_videomode mioa701_ltm0305a776c = {
+	{
+		.pixclock		= 220000,	/* CLK=4.545 MHz */
+		.xres			= 240,
+		.yres			= 320,
+		.hsync_len		= 4,
+		.vsync_len		= 2,
+		.left_margin		= 6,
+		.right_margin		= 4,
+		.upper_margin		= 5,
+		.lower_margin		= 3,
+	},
+	.bpp = 16,
+};
+
+static void mioa701_lcd_power(int on)
+{
+	gpio_set_value(GPIO87_LCD_POWER, on);
+}
+
+static void mioa701_lcd_backlight(int on)
+{
+	struct pwm_device *pwm0 = pwm_request("pxa_pwm0");
+
+	/*
+	 * The backlight has a base frequency of 250kHz (<=> 4 ms).
+	 */
+	if (on) {
+		pwm_enable(pwm0);
+		pwm_config(pwm0, 2000 * 1024, 4000 * 1024);
+	} else {
+		pwm_disable(pwm0);
+	}
+	pwm_free(pwm0);
+}
+
+static struct pxafb_platform_data mioa701_pxafb_info = {
+	.mode			= &mioa701_ltm0305a776c,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
+	.lcd_power		= mioa701_lcd_power,
+	.backlight_power	= mioa701_lcd_backlight,
+};
+
+#define MIO_LED(_name, _gpio) \
+	{ .gpio = _gpio, .active_low = 1, .led = { .name = #_name, } }
+static struct gpio_led leds[] = {
+	MIO_LED(charging, GPIO10_LED_nCharging),
+	MIO_LED(blue, GPIO97_LED_nBlue),
+	MIO_LED(orange, GPIO98_LED_nOrange),
+	MIO_LED(vibra, GPIO82_LED_nVibra),
+	MIO_LED(keyboard, GPIO115_LED_nKeyboard),
+};
+
+
+static int is_usb_connected(void)
+{
+	return !gpio_get_value(GPIO13_nUSB_DETECT);
+}
+
+static struct pxa2xx_udc_mach_info mioa701_udc_info = {
+	.udc_is_connected = is_usb_connected,
+	.gpio_pullup	  = GPIO22_USB_ENABLE,
+};
+
+static struct pxamci_platform_data mioa701_mmc_info = {
+	.gpio_power = GPIO91_SDIO_EN,
+};
+
+static int mioa701_devices_init(void)
+{
+	int i;
+	void *docg3_iospace;
+
+	pxa_add_pwm((void *)0x40b00000, 0);
+	pxa_add_fb((void *)0x44000000, &mioa701_pxafb_info);
+	pxa_add_mmc((void *)0x41100000, -1, &mioa701_mmc_info);
+	docg3_iospace = map_io_sections(0x0, (void *)0xe0000000, 0x2000);
+	add_generic_device("docg3", -1, NULL, (ulong) docg3_iospace, 0x2000,
+			   IORESOURCE_MEM, NULL);
+	armlinux_set_bootparams((void *)0xa0000100);
+	armlinux_set_architecture(MACH_TYPE_MIOA701);
+
+	for (i = 0; i < ARRAY_SIZE(leds); i++)
+		led_gpio_register(&leds[i]);
+	add_generic_device("pxa27x-udc", 0, NULL, 0x40600000,
+			   1024, IORESOURCE_MEM, &mioa701_udc_info);
+	return 0;
+}
+
+device_initcall(mioa701_devices_init);
+
+static unsigned long mioa701_pin_config[] = {
+	/* Mio global */
+	MIO_CFG_OUT(GPIO9_CHARGE_EN, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW),
+	MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH),
+	MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH),
+	MIO_CFG_IN(GPIO80_MAYBE_CHARGE_VDROP, AF0),
+
+	/* Backlight PWM 0 */
+	GPIO16_PWM0_OUT,
+
+	/* LCD */
+	GPIOxx_LCD_TFT_16BPP,
+	MIO_CFG_OUT(GPIO87_LCD_POWER, AF0, DRIVE_LOW),
+
+	/* MMC */
+	GPIO32_MMC_CLK,
+	GPIO92_MMC_DAT_0,
+	GPIO109_MMC_DAT_1,
+	GPIO110_MMC_DAT_2,
+	GPIO111_MMC_DAT_3,
+	GPIO112_MMC_CMD,
+	MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
+	MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
+	MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),
+
+	/* USB */
+	MIO_CFG_IN(GPIO13_nUSB_DETECT, AF0),
+	MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW),
+
+	/* QCI */
+	GPIO12_CIF_DD_7,
+	GPIO17_CIF_DD_6,
+	GPIO50_CIF_DD_3,
+	GPIO51_CIF_DD_2,
+	GPIO52_CIF_DD_4,
+	GPIO53_CIF_MCLK,
+	GPIO54_CIF_PCLK,
+	GPIO55_CIF_DD_1,
+	GPIO81_CIF_DD_0,
+	GPIO82_CIF_DD_5,
+	GPIO84_CIF_FV,
+	GPIO85_CIF_LV,
+
+	/* Bluetooth */
+	MIO_CFG_IN(GPIO14_BT_nACTIVITY, AF0),
+	GPIO44_BTUART_CTS,
+	GPIO42_BTUART_RXD,
+	GPIO45_BTUART_RTS,
+	GPIO43_BTUART_TXD,
+	MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO77_BT_UNKNOWN1, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO86_BT_MAYBE_nRESET, AF0, DRIVE_HIGH),
+
+	/* GPS */
+	MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW),
+	GPIO46_STUART_RXD,
+	GPIO47_STUART_TXD,
+
+	/* GSM */
+	MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH),
+	MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0),
+	MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH,
+	GPIO34_FFUART_RXD,
+	GPIO35_FFUART_CTS,
+	GPIO36_FFUART_DCD,
+	GPIO37_FFUART_DSR,
+	GPIO39_FFUART_TXD,
+	GPIO40_FFUART_DTR,
+	GPIO41_FFUART_RTS,
+
+	/* Sound */
+	GPIO28_AC97_BITCLK,
+	GPIO29_AC97_SDATA_IN_0,
+	GPIO30_AC97_SDATA_OUT,
+	GPIO31_AC97_SYNC,
+	GPIO89_AC97_SYSCLK,
+	MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),
+
+	/* Leds */
+	MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH),
+
+	/* Keyboard */
+	MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH,
+	MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0),
+	MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0),
+	GPIO100_KP_MKIN_0,
+	GPIO101_KP_MKIN_1,
+	GPIO102_KP_MKIN_2,
+	GPIO103_KP_MKOUT_0,
+	GPIO104_KP_MKOUT_1,
+	GPIO105_KP_MKOUT_2,
+
+	/* I2C */
+	GPIO117_I2C_SCL,
+	GPIO118_I2C_SDA,
+
+	/* Unknown */
+	MFP_CFG_IN(GPIO20, AF0),
+	MFP_CFG_IN(GPIO21, AF0),
+	MFP_CFG_IN(GPIO33, AF0),
+	MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH),
+	MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH),
+	MFP_CFG_IN(GPIO96, AF0),
+	MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH),
+};
+
+static int mioa701_coredevice_init(void)
+{
+	unsigned int cclk;
+	/* route pins */
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
+
+	CCCR = CCCR_A | 0x20110;
+	cclk = 0x02;
+	asm volatile("mcr p14, 0, %0, c6, c0, 0 @ set CCLK"
+	  : : "r" (cclk) : "cc");
+
+	return 0;
+}
+coredevice_initcall(mioa701_coredevice_init);
+
+static int mioa701_mem_init(void)
+{
+	arm_add_mem_device("ram0", 0xa0000000, 64 * 1024 * 1024);
+	return 0;
+}
+mem_initcall(mioa701_mem_init);