1 files changed, 361 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
new file mode 100644
index 000000000000..f23138b8fca3
--- /dev/null
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -0,0 +1,361 @@
+/*
+ *  linux/arch/arm/mach-pxa/balloon3.c
+ *
+ *  Support for Balloonboard.org Balloon3 board.
+ *
+ *  Author:     Nick Bane, Wookey, Jonathan McDowell
+ *  Created:    June, 2006
+ *  Copyright:  Toby Churchill Ltd
+ *  Derived from mainstone.c, by Nico Pitre
+ *
+ *  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/init.h>
+#include <linux/platform_device.h>
+#include <linux/sysdev.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/bitops.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+#include <linux/ioport.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/types.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/flash.h>
+
+#include <mach/pxa27x.h>
+#include <mach/balloon3.h>
+#include <mach/audio.h>
+#include <mach/pxafb.h>
+#include <mach/mmc.h>
+#include <mach/udc.h>
+#include <mach/pxa27x-udc.h>
+#include <mach/irda.h>
+#include <mach/ohci.h>
+
+#include <plat/i2c.h>
+
+#include "generic.h"
+#include "devices.h"
+
+static unsigned long balloon3_irq_enabled;
+
+static unsigned long balloon3_features_present =
+                (1 << BALLOON3_FEATURE_OHCI) | (1 << BALLOON3_FEATURE_CF) |
+                (1 << BALLOON3_FEATURE_AUDIO) |
+                (1 << BALLOON3_FEATURE_TOPPOLY);
+
+int balloon3_has(enum balloon3_features feature)
+{
+        return (balloon3_features_present & (1 << feature)) ? 1 : 0;
+}
+EXPORT_SYMBOL_GPL(balloon3_has);
+
+int __init parse_balloon3_features(char *arg)
+{
+        if (!arg)
+                return 0;
+
+        return strict_strtoul(arg, 0, &balloon3_features_present);
+}
+early_param("balloon3_features", parse_balloon3_features);
+
+static void balloon3_mask_irq(unsigned int irq)
+{
+        int balloon3_irq = (irq - BALLOON3_IRQ(0));
+        balloon3_irq_enabled &= ~(1 << balloon3_irq);
+        __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
+}
+
+static void balloon3_unmask_irq(unsigned int irq)
+{
+        int balloon3_irq = (irq - BALLOON3_IRQ(0));
+        balloon3_irq_enabled |= (1 << balloon3_irq);
+        __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
+}
+
+static struct irq_chip balloon3_irq_chip = {
+        .name           = "FPGA",
+        .ack            = balloon3_mask_irq,
+        .mask           = balloon3_mask_irq,
+        .unmask         = balloon3_unmask_irq,
+};
+
+static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+        unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
+                                        balloon3_irq_enabled;
+
+        do {
+                /* clear useless edge notification */
+                if (desc->chip->ack)
+                        desc->chip->ack(BALLOON3_AUX_NIRQ);
+                while (pending) {
+                        irq = BALLOON3_IRQ(0) + __ffs(pending);
+                        generic_handle_irq(irq);
+                        pending &= pending - 1;
+                }
+                pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
+                                balloon3_irq_enabled;
+        } while (pending);
+}
+
+static void __init balloon3_init_irq(void)
+{
+        int irq;
+
+        pxa27x_init_irq();
+        /* setup extra Balloon3 irqs */
+        for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) {
+                set_irq_chip(irq, &balloon3_irq_chip);
+                set_irq_handler(irq, handle_level_irq);
+                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+        }
+
+        set_irq_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler);
+        set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING);
+
+        pr_debug("%s: chained handler installed - irq %d automatically "
+                "enabled\n", __func__, BALLOON3_AUX_NIRQ);
+}
+
+static void balloon3_backlight_power(int on)
+{
+        pr_debug("%s: power is %s\n", __func__, on ? "on" : "off");
+        gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on);
+}
+
+static unsigned long balloon3_lcd_pin_config[] = {
+        /* LCD - 16bpp Active TFT */
+        GPIO58_LCD_LDD_0,
+        GPIO59_LCD_LDD_1,
+        GPIO60_LCD_LDD_2,
+        GPIO61_LCD_LDD_3,
+        GPIO62_LCD_LDD_4,
+        GPIO63_LCD_LDD_5,
+        GPIO64_LCD_LDD_6,
+        GPIO65_LCD_LDD_7,
+        GPIO66_LCD_LDD_8,
+        GPIO67_LCD_LDD_9,
+        GPIO68_LCD_LDD_10,
+        GPIO69_LCD_LDD_11,
+        GPIO70_LCD_LDD_12,
+        GPIO71_LCD_LDD_13,
+        GPIO72_LCD_LDD_14,
+        GPIO73_LCD_LDD_15,
+        GPIO74_LCD_FCLK,
+        GPIO75_LCD_LCLK,
+        GPIO76_LCD_PCLK,
+        GPIO77_LCD_BIAS,
+
+        GPIO99_GPIO,            /* Backlight */
+};
+
+static struct pxafb_mode_info balloon3_lcd_modes[] = {
+        {
+                .pixclock               = 38000,
+                .xres                   = 480,
+                .yres                   = 640,
+                .bpp                    = 16,
+                .hsync_len              = 8,
+                .left_margin            = 8,
+                .right_margin           = 8,
+                .vsync_len              = 2,
+                .upper_margin           = 4,
+                .lower_margin           = 5,
+                .sync                   = 0,
+        },
+};
+
+static struct pxafb_mach_info balloon3_pxafb_info = {
+        .modes                  = balloon3_lcd_modes,
+        .num_modes              = ARRAY_SIZE(balloon3_lcd_modes),
+        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
+        .pxafb_backlight_power  = balloon3_backlight_power,
+};
+
+static unsigned long balloon3_mmc_pin_config[] = {
+        GPIO32_MMC_CLK,
+        GPIO92_MMC_DAT_0,
+        GPIO109_MMC_DAT_1,
+        GPIO110_MMC_DAT_2,
+        GPIO111_MMC_DAT_3,
+        GPIO112_MMC_CMD,
+};
+
+static void balloon3_mci_setpower(struct device *dev, unsigned int vdd)
+{
+        struct pxamci_platform_data *p_d = dev->platform_data;
+
+        if ((1 << vdd) & p_d->ocr_mask) {
+                pr_debug("%s: on\n", __func__);
+                /* FIXME something to prod here? */
+        } else {
+                pr_debug("%s: off\n", __func__);
+                /* FIXME something to prod here? */
+        }
+}
+
+static struct pxamci_platform_data balloon3_mci_platform_data = {
+        .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
+        .setpower       = balloon3_mci_setpower,
+};
+
+static int balloon3_udc_is_connected(void)
+{
+        pr_debug("%s: udc connected\n", __func__);
+        return 1;
+}
+
+static void balloon3_udc_command(int cmd)
+{
+        switch (cmd) {
+        case PXA2XX_UDC_CMD_CONNECT:
+                UP2OCR |= (UP2OCR_DPPUE + UP2OCR_DPPUBE);
+                pr_debug("%s: connect\n", __func__);
+                break;
+        case PXA2XX_UDC_CMD_DISCONNECT:
+                UP2OCR &= ~UP2OCR_DPPUE;
+                pr_debug("%s: disconnect\n", __func__);
+                break;
+        }
+}
+
+static struct pxa2xx_udc_mach_info balloon3_udc_info = {
+        .udc_is_connected = balloon3_udc_is_connected,
+        .udc_command      = balloon3_udc_command,
+};
+
+static struct pxaficp_platform_data balloon3_ficp_platform_data = {
+        .transceiver_cap  = IR_SIRMODE | IR_FIRMODE | IR_OFF,
+};
+
+static unsigned long balloon3_ohci_pin_config[] = {
+        GPIO88_USBH1_PWR,
+        GPIO89_USBH1_PEN,
+};
+
+static struct pxaohci_platform_data balloon3_ohci_platform_data = {
+        .port_mode      = PMM_PERPORT_MODE,
+        .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
+};
+
+static unsigned long balloon3_pin_config[] __initdata = {
+        /* Select BTUART 'COM1/ttyS0' as IO option for pins 42/43/44/45 */
+        GPIO42_BTUART_RXD,
+        GPIO43_BTUART_TXD,
+        GPIO44_BTUART_CTS,
+        GPIO45_BTUART_RTS,
+
+        /* Wakeup GPIO */
+        GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
+
+        /* NAND & IDLE LED GPIOs */
+        GPIO9_GPIO,
+        GPIO10_GPIO,
+};
+
+static struct gpio_led balloon3_gpio_leds[] = {
+        {
+                .name                   = "balloon3:green:idle",
+                .default_trigger        = "heartbeat",
+                .gpio                   = BALLOON3_GPIO_LED_IDLE,
+                .active_low             = 1,
+        },
+        {
+                .name                   = "balloon3:green:nand",
+                .default_trigger        = "nand-disk",
+                .gpio                   = BALLOON3_GPIO_LED_NAND,
+                .active_low             = 1,
+        },
+};
+
+static struct gpio_led_platform_data balloon3_gpio_leds_platform_data = {
+        .leds           = balloon3_gpio_leds,
+        .num_leds       = ARRAY_SIZE(balloon3_gpio_leds),
+};
+
+static struct platform_device balloon3led_device = {
+        .name   = "leds-gpio",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &balloon3_gpio_leds_platform_data,
+        },
+};
+
+static void __init balloon3_init(void)
+{
+        pr_info("Initialising Balloon3\n");
+
+        /* system bus arbiter setting
+         * - Core_Park
+         * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
+         */
+        ARB_CNTRL = ARB_CORE_PARK | 0x234;
+
+        pxa_set_i2c_info(NULL);
+        if (balloon3_has(BALLOON3_FEATURE_AUDIO))
+                pxa_set_ac97_info(NULL);
+
+        if (balloon3_has(BALLOON3_FEATURE_TOPPOLY)) {
+                pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_lcd_pin_config));
+                gpio_request(BALLOON3_GPIO_RUN_BACKLIGHT,
+                        "LCD Backlight Power");
+                gpio_direction_output(BALLOON3_GPIO_RUN_BACKLIGHT, 1);
+                set_pxa_fb_info(&balloon3_pxafb_info);
+        }
+
+        if (balloon3_has(BALLOON3_FEATURE_MMC)) {
+                pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_mmc_pin_config));
+                pxa_set_mci_info(&balloon3_mci_platform_data);
+        }
+        pxa_set_ficp_info(&balloon3_ficp_platform_data);
+        if (balloon3_has(BALLOON3_FEATURE_OHCI)) {
+                pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_ohci_pin_config));
+                pxa_set_ohci_info(&balloon3_ohci_platform_data);
+        }
+        pxa_set_udc_info(&balloon3_udc_info);
+
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_pin_config));
+
+        platform_device_register(&balloon3led_device);
+}
+
+static struct map_desc balloon3_io_desc[] __initdata = {
+        {       /* CPLD/FPGA */
+                .virtual        =  BALLOON3_FPGA_VIRT,
+                .pfn            = __phys_to_pfn(BALLOON3_FPGA_PHYS),
+                .length         = BALLOON3_FPGA_LENGTH,
+                .type           = MT_DEVICE,
+        },
+};
+
+static void __init balloon3_map_io(void)
+{
+        pxa_map_io();
+        iotable_init(balloon3_io_desc, ARRAY_SIZE(balloon3_io_desc));
+}
+
+MACHINE_START(BALLOON3, "Balloon3")
+        /* Maintainer: Nick Bane. */
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .map_io         = balloon3_map_io,
+        .init_irq       = balloon3_init_irq,
+        .timer          = &pxa_timer,
+        .init_machine   = balloon3_init,
+        .boot_params    = PHYS_OFFSET + 0x100,
+MACHINE_END