diff options
Diffstat (limited to 'arch/arm/mach-pxa/balloon3.c')
| -rw-r--r-- | arch/arm/mach-pxa/balloon3.c | 225 |
1 files changed, 126 insertions, 99 deletions
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c index f3b5ace815e..8adb87a0367 100644 --- a/arch/arm/mach-pxa/balloon3.c +++ b/arch/arm/mach-pxa/balloon3.c @@ -51,87 +51,27 @@ #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); -} +/****************************************************************************** + * Pin configuration + ******************************************************************************/ +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, -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); -} + /* Wakeup GPIO */ + GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, -static struct irq_chip balloon3_irq_chip = { - .name = "FPGA", - .ack = balloon3_mask_irq, - .mask = balloon3_mask_irq, - .unmask = balloon3_unmask_irq, + /* NAND & IDLE LED GPIOs */ + GPIO9_GPIO, + GPIO10_GPIO, }; -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); -} - +/****************************************************************************** + * Audio and Touchscreen + ******************************************************************************/ static unsigned long balloon3_ac97_pin_config[] = { GPIO28_AC97_BITCLK, GPIO29_AC97_SDATA_IN_0, @@ -140,19 +80,16 @@ static unsigned long balloon3_ac97_pin_config[] = { GPIO113_AC97_nRESET, }; +/****************************************************************************** + * Framebuffer + ******************************************************************************/ + 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 */ - GPIOxx_LCD_TFT_16BPP, - - GPIO99_GPIO, /* Backlight */ -}; - static struct pxafb_mode_info balloon3_lcd_modes[] = { { .pixclock = 38000, @@ -176,6 +113,9 @@ static struct pxafb_mach_info balloon3_pxafb_info = { .pxafb_backlight_power = balloon3_backlight_power, }; +/****************************************************************************** + * SD/MMC card controller + ******************************************************************************/ static unsigned long balloon3_mmc_pin_config[] = { GPIO32_MMC_CLK, GPIO92_MMC_DAT_0, @@ -203,6 +143,9 @@ static struct pxamci_platform_data balloon3_mci_platform_data = { .setpower = balloon3_mci_setpower, }; +/****************************************************************************** + * USB Gadget + ******************************************************************************/ static int balloon3_udc_is_connected(void) { pr_debug("%s: udc connected\n", __func__); @@ -228,10 +171,16 @@ static struct pxa2xx_udc_mach_info balloon3_udc_info = { .udc_command = balloon3_udc_command, }; +/****************************************************************************** + * IrDA + ******************************************************************************/ static struct pxaficp_platform_data balloon3_ficp_platform_data = { .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, }; +/****************************************************************************** + * USB Host + ******************************************************************************/ static unsigned long balloon3_ohci_pin_config[] = { GPIO88_USBH1_PWR, GPIO89_USBH1_PEN, @@ -242,21 +191,9 @@ static struct pxaohci_platform_data balloon3_ohci_platform_data = { .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, -}; - +/****************************************************************************** + * LED + ******************************************************************************/ static struct gpio_led balloon3_gpio_leds[] = { { .name = "balloon3:green:idle", @@ -285,6 +222,96 @@ static struct platform_device balloon3led_device = { }, }; +/****************************************************************************** + * Compatibility: Parameter parsing + ******************************************************************************/ +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); + +/****************************************************************************** + * FPGA IRQ + ******************************************************************************/ +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); +} + +/****************************************************************************** + * Machine init + ******************************************************************************/ static void __init balloon3_init(void) { pr_info("Initialising Balloon3\n"); |