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yaml
---
r: 208639
b: refs/heads/master
c: b0240bf
h: refs/heads/master
i:
  208637: 0cc152d
  208635: 7584cb3
  208631: 659def2
  208623: 1909508
  208607: 8a9a54e
  208575: c7ae969
  208511: ddb7fb5
  208383: 1622465
v: v3
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Marek Vasut authored and Eric Miao committed Aug 5, 2010
1 parent b2c311f commit fd44b5c
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Showing 2 changed files with 127 additions and 100 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 773108401d883a97dc624acf8c20f71e50a9a28a
refs/heads/master: b0240bf4d4fac099e067c206234aed4528d70ca9
225 changes: 126 additions & 99 deletions trunk/arch/arm/mach-pxa/balloon3.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand Down Expand Up @@ -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__);
Expand All @@ -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,
Expand All @@ -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",
Expand Down Expand Up @@ -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");
Expand Down

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