avr32: Add support for Mediama RMTx add-on board for ATNGW100

Signed-off-by: Peter Ma <pma@mediamatech.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

5 files changed, 475 insertions, 0 deletions

diff --git a/arch/avr32/boards/atngw100/Kconfig b/arch/avr32/boards/atngw100/Kconfig
index f41c5335e6a9..be27a0218ab4 100644
--- a/arch/avr32/boards/atngw100/Kconfig
+++ b/arch/avr32/boards/atngw100/Kconfig
@@ -21,6 +21,18 @@ config BOARD_ATNGW100_EVKLCD10X
           The MCI pins can be reenabled by editing the "add device function" but
           this may break the setup for other displays that use these pins.
 
+config BOARD_ATNGW100_MRMT
+        bool "Mediama RMT1/2 add-on board"
+        help
+          This enables support for the Mediama RMT1 or RMT2 board.
+          RMT provides LCD support, AC97 codec and other
+          optional peripherals to the Atmel NGW100.
+
+          This choice disables the detect pin and the write-protect pin for the
+          MCI platform device, since it conflicts with the LCD platform device.
+          The MCI pins can be reenabled by editing the "add device function" but
+          this may break the setup for other displays that use these pins.
+
 endchoice
 
 choice
@@ -39,4 +51,8 @@ config BOARD_ATNGW100_EVKLCD10X_POW_QVGA
 
 endchoice
 
+if BOARD_ATNGW100_MRMT
+source  "arch/avr32/boards/atngw100/Kconfig_mrmt"
+endif
+
 endif   # BOARD_ATNGW100
diff --git a/arch/avr32/boards/atngw100/Kconfig_mrmt b/arch/avr32/boards/atngw100/Kconfig_mrmt
new file mode 100644
index 000000000000..9a199a207f3c
--- /dev/null
+++ b/arch/avr32/boards/atngw100/Kconfig_mrmt
@@ -0,0 +1,80 @@
+# RMT for NGW100 customization
+
+choice
+        prompt "RMT Version"
+        help
+          Select the RMTx board version.
+
+config BOARD_MRMT_REV1
+        bool "RMT1"
+config BOARD_MRMT_REV2
+        bool "RMT2"
+
+endchoice
+
+config BOARD_MRMT_AC97
+        bool "Enable AC97 CODEC"
+        help
+          Enable the UCB1400 AC97 CODEC driver.
+
+choice
+        prompt "Touchscreen Driver"
+        default BOARD_MRMT_ADS7846_TS
+
+config BOARD_MRMT_UCB1400_TS
+        bool "Use UCB1400 Touchscreen"
+
+config BOARD_MRMT_ADS7846_TS
+        bool "Use ADS7846 Touchscreen"
+
+endchoice
+
+choice
+        prompt "RMTx LCD Selection"
+        default BOARD_MRMT_LCD_DISABLE
+
+config BOARD_MRMT_LCD_DISABLE
+        bool "LCD Disabled"
+
+config BOARD_MRMT_LCD_LQ043T3DX0X
+        bool "Sharp LQ043T3DX0x or compatible"
+        help
+          If using RMT2, be sure to load the resistor pack selectors accordingly
+
+if BOARD_MRMT_REV2
+config BOARD_MRMT_LCD_KWH043GM08
+        bool "Formike KWH043GM08 or compatible"
+        help
+          Be sure to load the RMT2 resistor pack selectors accordingly
+endif
+
+endchoice
+
+if !BOARD_MRMT_LCD_DISABLE
+config BOARD_MRMT_BL_PWM
+        bool "Use PWM control for LCD Backlight"
+        help
+                Use PWM driver for controlling LCD Backlight.
+                Otherwise, LCD Backlight is always on.
+endif
+
+config BOARD_MRMT_RTC_I2C
+        bool "Use External RTC on I2C Bus"
+        help
+                RMT1 has an optional RTC device on the I2C bus.
+                It is a SII S35390A.  Be sure to select the
+                matching RTC driver.
+
+choice
+        prompt "Wireless Module on ttyS2"
+        default BOARD_MRMT_WIRELESS_ZB
+
+config BOARD_MRMT_WIRELESS_ZB
+        bool "Use ZigBee/802.15.4 Module"
+
+config BOARD_MRMT_WIRELESS_BT
+        bool "Use Bluetooth (HCI) Module"
+
+config BOARD_MRMT_WIRELESS_NONE
+        bool "Not Installed"
+endchoice
diff --git a/arch/avr32/boards/atngw100/Makefile b/arch/avr32/boards/atngw100/Makefile
index 6376f5322e4d..f4ebe42a8254 100644
--- a/arch/avr32/boards/atngw100/Makefile
+++ b/arch/avr32/boards/atngw100/Makefile
@@ -1,2 +1,3 @@
 obj-y                                   += setup.o flash.o
 obj-$(CONFIG_BOARD_ATNGW100_EVKLCD10X)  += evklcd10x.o
+obj-$(CONFIG_BOARD_ATNGW100_MRMT)       += mrmt.o
diff --git a/arch/avr32/boards/atngw100/mrmt.c b/arch/avr32/boards/atngw100/mrmt.c
new file mode 100644
index 000000000000..bf78e516a85f
--- /dev/null
+++ b/arch/avr32/boards/atngw100/mrmt.c
@@ -0,0 +1,373 @@
+/*
+ * Board-specific setup code for Remote Media Terminal 1 (RMT1)
+ * add-on board for the ATNGW100 Network Gateway
+ *
+ * Copyright (C) 2008 Mediama Technologies
+ * Based on ATNGW100 Network Gateway (Copyright (C) Atmel)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/linkage.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/fb.h>
+#include <linux/leds.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/atmel_serial.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+
+#include <video/atmel_lcdc.h>
+#include <sound/atmel-ac97c.h>
+
+#include <asm/delay.h>
+#include <asm/io.h>
+#include <asm/setup.h>
+
+#include <mach/at32ap700x.h>
+#include <mach/board.h>
+#include <mach/init.h>
+#include <mach/portmux.h>
+
+/* Define board-specifoic GPIO assignments */
+#define PIN_LCD_BL      GPIO_PIN_PA(28)
+#define PWM_CH_BL       0       /* Must match with GPIO pin definition */
+#define PIN_LCD_DISP    GPIO_PIN_PA(31)
+#define PIN_AC97_RST_N  GPIO_PIN_PA(30)
+#define PB_EXTINT_BASE  25
+#define TS_IRQ          0
+#define PIN_TS_EXTINT   GPIO_PIN_PB(PB_EXTINT_BASE+TS_IRQ)
+#define PIN_PB_LEFT     GPIO_PIN_PB(11)
+#define PIN_PB_RIGHT    GPIO_PIN_PB(12)
+#define PIN_PWR_SW_N    GPIO_PIN_PB(14)
+#define PIN_PWR_ON      GPIO_PIN_PB(13)
+#define PIN_ZB_RST_N    GPIO_PIN_PA(21)
+#define PIN_BT_RST      GPIO_PIN_PA(22)
+#define PIN_LED_SYS     GPIO_PIN_PA(16)
+#define PIN_LED_A       GPIO_PIN_PA(19)
+#define PIN_LED_B       GPIO_PIN_PE(19)
+
+#ifdef CONFIG_BOARD_MRMT_LCD_LQ043T3DX0X
+/* Sharp LQ043T3DX0x (or compatible) panel */
+static struct fb_videomode __initdata lcd_fb_modes[] = {
+        {
+                .name           = "480x272 @ 59.94Hz",
+                .refresh        = 59.94,
+                .xres           = 480,          .yres           = 272,
+                .pixclock       = KHZ2PICOS(9000),
+
+                .left_margin    = 2,            .right_margin   = 2,
+                .upper_margin   = 3,            .lower_margin   = 9,
+                .hsync_len      = 41,           .vsync_len      = 1,
+
+                .sync           = 0,
+                .vmode          = FB_VMODE_NONINTERLACED,
+        },
+};
+
+static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
+        .manufacturer           = "SHA",
+        .monitor                = "LQ043T3DX02",
+        .modedb                 = lcd_fb_modes,
+        .modedb_len             = ARRAY_SIZE(lcd_fb_modes),
+        .hfmin                  = 14915,
+        .hfmax                  = 17638,
+        .vfmin                  = 53,
+        .vfmax                  = 61,
+        .dclkmax                = 9260000,
+};
+
+static struct atmel_lcdfb_info __initdata rmt_lcdc_data = {
+        .default_bpp            = 24,
+        .default_dmacon         = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
+        .default_lcdcon2        = (ATMEL_LCDC_DISTYPE_TFT
+                                   | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
+                                   | ATMEL_LCDC_INVCLK_NORMAL
+                                   | ATMEL_LCDC_MEMOR_BIG),
+        .lcd_wiring_mode        = ATMEL_LCDC_WIRING_RGB,
+        .default_monspecs       = &lcd_fb_default_monspecs,
+        .guard_time             = 2,
+};
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_LCD_KWH043GM08
+/* Sharp KWH043GM08-Fxx (or compatible) panel */
+static struct fb_videomode __initdata lcd_fb_modes[] = {
+        {
+                .name           = "480x272 @ 59.94Hz",
+                .refresh        = 59.94,
+                .xres           = 480,          .yres           = 272,
+                .pixclock       = KHZ2PICOS(9000),
+
+                .left_margin    = 2,            .right_margin   = 2,
+                .upper_margin   = 3,            .lower_margin   = 9,
+                .hsync_len      = 41,           .vsync_len      = 1,
+
+                .sync           = 0,
+                .vmode          = FB_VMODE_NONINTERLACED,
+        },
+};
+
+static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
+        .manufacturer           = "FOR",
+        .monitor                = "KWH043GM08",
+        .modedb                 = lcd_fb_modes,
+        .modedb_len             = ARRAY_SIZE(lcd_fb_modes),
+        .hfmin                  = 14915,
+        .hfmax                  = 17638,
+        .vfmin                  = 53,
+        .vfmax                  = 61,
+        .dclkmax                = 9260000,
+};
+
+static struct atmel_lcdfb_info __initdata rmt_lcdc_data = {
+        .default_bpp            = 24,
+        .default_dmacon         = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
+        .default_lcdcon2        = (ATMEL_LCDC_DISTYPE_TFT
+                                   | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
+                                   | ATMEL_LCDC_INVCLK_INVERTED
+                                   | ATMEL_LCDC_MEMOR_BIG),
+        .lcd_wiring_mode        = ATMEL_LCDC_WIRING_RGB,
+        .default_monspecs       = &lcd_fb_default_monspecs,
+        .guard_time             = 2,
+};
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_AC97
+static struct ac97c_platform_data __initdata ac97c0_data = {
+        .reset_pin              = PIN_AC97_RST_N,
+};
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_UCB1400_TS
+/* NOTE: IRQ assignment relies on kernel module parameter */
+static struct platform_device rmt_ts_device = {
+        .name   = "ucb1400_ts",
+        .id     = -1,
+        }
+};
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_BL_PWM
+/* PWM LEDs: LCD Backlight, etc */
+static struct gpio_led rmt_pwm_led[] = {
+        /* here the "gpio" is actually a PWM channel */
+        { .name = "backlight",  .gpio = PWM_CH_BL, },
+};
+
+static struct gpio_led_platform_data rmt_pwm_led_data = {
+        .num_leds       = ARRAY_SIZE(rmt_pwm_led),
+        .leds           = rmt_pwm_led,
+};
+
+static struct platform_device rmt_pwm_led_dev = {
+        .name           = "leds-atmel-pwm",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = &rmt_pwm_led_data,
+        },
+};
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_ADS7846_TS
+static int ads7846_pendown_state(void)
+{
+        return !gpio_get_value( PIN_TS_EXTINT );        /* PENIRQ.*/
+}
+
+static struct ads7846_platform_data ads_info = {
+        .model                          = 7846,
+        .keep_vref_on                   = 0,    /* Use external VREF pin */
+        .vref_delay_usecs               = 0,
+        .vref_mv                        = 3300, /* VREF = 3.3V */
+        .settle_delay_usecs             = 800,
+        .penirq_recheck_delay_usecs     = 800,
+        .x_plate_ohms                   = 750,
+        .y_plate_ohms                   = 300,
+        .pressure_max                   = 4096,
+        .debounce_max                   = 1,
+        .debounce_rep                   = 0,
+        .debounce_tol                   = (~0),
+        .get_pendown_state              = ads7846_pendown_state,
+        .filter                         = NULL,
+        .filter_init                    = NULL,
+};
+
+static struct spi_board_info spi01_board_info[] __initdata = {
+        {
+                .modalias       = "ads7846",
+                .max_speed_hz   = 31250*26,
+                .bus_num        = 0,
+                .chip_select    = 1,
+                .platform_data  = &ads_info,
+                .irq            = AT32_EXTINT(TS_IRQ),
+        },
+};
+#endif
+
+/* GPIO Keys: left, right, power, etc */
+static const struct gpio_keys_button rmt_gpio_keys_buttons[] = {
+        [0] = {
+                .type           = EV_KEY,
+                .code           = KEY_POWER,
+                .gpio           = PIN_PWR_SW_N,
+                .active_low     = 1,
+                .desc           = "power button",
+        },
+        [1] = {
+                .type           = EV_KEY,
+                .code           = KEY_LEFT,
+                .gpio           = PIN_PB_LEFT,
+                .active_low     = 1,
+                .desc           = "left button",
+        },
+        [2] = {
+                .type           = EV_KEY,
+                .code           = KEY_RIGHT,
+                .gpio           = PIN_PB_RIGHT,
+                .active_low     = 1,
+                .desc           = "right button",
+        },
+};
+
+static const struct gpio_keys_platform_data rmt_gpio_keys_data = {
+        .nbuttons =     ARRAY_SIZE(rmt_gpio_keys_buttons),
+        .buttons =      (void *) rmt_gpio_keys_buttons,
+};
+
+static struct platform_device rmt_gpio_keys = {
+        .name =         "gpio-keys",
+        .id =           -1,
+        .dev = {
+                .platform_data = (void *) &rmt_gpio_keys_data,
+        }
+};
+
+#ifdef CONFIG_BOARD_MRMT_RTC_I2C
+static struct i2c_board_info __initdata mrmt1_i2c_rtc = {
+        I2C_BOARD_INFO("s35390a", 0x30),
+        .irq            = 0,
+};
+#endif
+
+static void mrmt_power_off(void)
+{
+        /* PWR_ON=0 will force power off */
+        gpio_set_value( PIN_PWR_ON, 0 );
+}
+
+static int __init mrmt1_init(void)
+{
+        gpio_set_value( PIN_PWR_ON, 1 );        /* Ensure PWR_ON is enabled */
+
+        pm_power_off = mrmt_power_off;
+
+        /* Setup USARTS (other than console) */
+        at32_map_usart(2, 1, 0);        /* USART 2: /dev/ttyS1, RMT1:DB9M */
+        at32_map_usart(3, 2, ATMEL_USART_RTS | ATMEL_USART_CTS);
+                        /* USART 3: /dev/ttyS2, RMT1:Wireless, w/ RTS/CTS */
+        at32_add_device_usart(1);
+        at32_add_device_usart(2);
+
+        /* Select GPIO Key pins */
+        at32_select_gpio( PIN_PWR_SW_N, AT32_GPIOF_DEGLITCH);
+        at32_select_gpio( PIN_PB_LEFT, AT32_GPIOF_DEGLITCH);
+        at32_select_gpio( PIN_PB_RIGHT, AT32_GPIOF_DEGLITCH);
+        platform_device_register(&rmt_gpio_keys);
+
+#ifdef CONFIG_BOARD_MRMT_RTC_I2C
+        i2c_register_board_info(0, &mrmt1_i2c_rtc, 1);
+#endif
+
+#ifndef CONFIG_BOARD_MRMT_LCD_DISABLE
+        /* User "alternate" LCDC inferface on Port E & D */
+        /* NB: exclude LCDC_CC pin, as NGW100 reserves it for other use */
+        at32_add_device_lcdc(0, &rmt_lcdc_data,
+                fbmem_start, fbmem_size,
+                (ATMEL_LCDC_ALT_24BIT | ATMEL_LCDC_PE_DVAL ) );
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_AC97
+        at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_ADS7846_TS
+        /* Select the Touchscreen interrupt pin mode */
+        at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
+                        GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
+        set_irq_type( AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING );
+        spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info));
+#endif
+
+#ifdef CONFIG_BOARD_MRMT_UCB1400_TS
+        /* Select the Touchscreen interrupt pin mode */
+        at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
+                        GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
+        platform_device_register(&rmt_ts_device);
+#endif
+
+        at32_select_gpio( PIN_LCD_DISP, AT32_GPIOF_OUTPUT );
+        gpio_request( PIN_LCD_DISP, "LCD_DISP" );
+        gpio_direction_output( PIN_LCD_DISP, 0 );       /* LCD DISP */
+#ifdef CONFIG_BOARD_MRMT_LCD_DISABLE
+        /* Keep Backlight and DISP off */
+        at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
+        gpio_request( PIN_LCD_BL, "LCD_BL" );
+        gpio_direction_output( PIN_LCD_BL, 0 );         /* Backlight */
+#else
+        gpio_set_value( PIN_LCD_DISP, 1 );      /* DISP asserted first */
+#ifdef CONFIG_BOARD_MRMT_BL_PWM
+        /* Use PWM for Backlight controls */
+        at32_add_device_pwm(1 << PWM_CH_BL);
+        platform_device_register(&rmt_pwm_led_dev);
+#else
+        /* Backlight always on */
+        udelay( 1 );
+        at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
+        gpio_request( PIN_LCD_BL, "LCD_BL" );
+        gpio_direction_output( PIN_LCD_BL, 1 );
+#endif
+#endif
+
+        /* Make sure BT and Zigbee modules in reset */
+        at32_select_gpio( PIN_BT_RST, AT32_GPIOF_OUTPUT );
+        gpio_request( PIN_BT_RST, "BT_RST" );
+        gpio_direction_output( PIN_BT_RST, 1 );
+        /* BT Module in Reset */
+
+        at32_select_gpio( PIN_ZB_RST_N, AT32_GPIOF_OUTPUT );
+        gpio_request( PIN_ZB_RST_N, "ZB_RST_N" );
+        gpio_direction_output( PIN_ZB_RST_N, 0 );
+        /* XBee Module in Reset */
+
+#ifdef CONFIG_BOARD_MRMT_WIRELESS_ZB
+        udelay( 1000 );
+        /* Unreset the XBee Module */
+        gpio_set_value( PIN_ZB_RST_N, 1 );
+#endif
+#ifdef CONFIG_BOARD_MRMT_WIRELESS_BT
+        udelay( 1000 );
+        /* Unreset the BT Module */
+        gpio_set_value( PIN_BT_RST, 0 );
+#endif
+
+        return 0;
+}
+arch_initcall(mrmt1_init);
+
+static int __init mrmt1_early_init(void)
+{
+        /* To maintain power-on signal in case boot loader did not already */
+        at32_select_gpio( PIN_PWR_ON, AT32_GPIOF_OUTPUT );
+        gpio_request( PIN_PWR_ON, "PIN_PWR_ON" );
+        gpio_direction_output( PIN_PWR_ON, 1 );
+
+        return 0;
+}
+core_initcall(mrmt1_early_init);
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 5b022aad4bd9..bc299fbbeb4e 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -56,8 +56,13 @@ static struct spi_board_info spi0_board_info[] __initdata = {
 static struct mci_platform_data __initdata mci0_data = {
         .slot[0] = {
                 .bus_width      = 4,
+#if defined(CONFIG_BOARD_ATNGW100_EVKLCD10X) || defined(CONFIG_BOARD_ATNGW100_MRMT1)
+                .detect_pin     = GPIO_PIN_NONE,
+                .wp_pin         = GPIO_PIN_NONE,
+#else
                 .detect_pin     = GPIO_PIN_PC(25),
                 .wp_pin         = GPIO_PIN_PE(0),
+#endif
         },
 };