12a2449c79
Modularize components of the Balloon3 board. Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
491 lines
13 KiB
C
491 lines
13 KiB
C
/*
|
|
* 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/ucb1400.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"
|
|
|
|
/******************************************************************************
|
|
* 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,
|
|
|
|
/* Reset, configured as GPIO wakeup source */
|
|
GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
|
|
|
|
/* LEDs */
|
|
GPIO9_GPIO, /* NAND activity LED */
|
|
GPIO10_GPIO, /* Heartbeat LED */
|
|
|
|
/* AC97 */
|
|
GPIO28_AC97_BITCLK,
|
|
GPIO29_AC97_SDATA_IN_0,
|
|
GPIO30_AC97_SDATA_OUT,
|
|
GPIO31_AC97_SYNC,
|
|
GPIO113_AC97_nRESET,
|
|
GPIO95_GPIO,
|
|
|
|
/* MMC */
|
|
GPIO32_MMC_CLK,
|
|
GPIO92_MMC_DAT_0,
|
|
GPIO109_MMC_DAT_1,
|
|
GPIO110_MMC_DAT_2,
|
|
GPIO111_MMC_DAT_3,
|
|
GPIO112_MMC_CMD,
|
|
|
|
/* USB Host */
|
|
GPIO88_USBH1_PWR,
|
|
GPIO89_USBH1_PEN,
|
|
};
|
|
|
|
/******************************************************************************
|
|
* 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);
|
|
|
|
/******************************************************************************
|
|
* NOR Flash
|
|
******************************************************************************/
|
|
#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
|
|
static struct mtd_partition balloon3_nor_partitions[] = {
|
|
{
|
|
.name = "Flash",
|
|
.offset = 0x00000000,
|
|
.size = MTDPART_SIZ_FULL,
|
|
}
|
|
};
|
|
|
|
static struct physmap_flash_data balloon3_flash_data[] = {
|
|
{
|
|
.width = 2, /* bankwidth in bytes */
|
|
.parts = balloon3_nor_partitions,
|
|
.nr_parts = ARRAY_SIZE(balloon3_nor_partitions)
|
|
}
|
|
};
|
|
|
|
static struct resource balloon3_flash_resource = {
|
|
.start = PXA_CS0_PHYS,
|
|
.end = PXA_CS0_PHYS + SZ_64M - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device balloon3_flash = {
|
|
.name = "physmap-flash",
|
|
.id = 0,
|
|
.resource = &balloon3_flash_resource,
|
|
.num_resources = 1,
|
|
.dev = {
|
|
.platform_data = balloon3_flash_data,
|
|
},
|
|
};
|
|
static void __init balloon3_nor_init(void)
|
|
{
|
|
platform_device_register(&balloon3_flash);
|
|
}
|
|
#else
|
|
static inline void balloon3_nor_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* Audio and Touchscreen
|
|
******************************************************************************/
|
|
#if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
|
|
defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
|
|
static struct ucb1400_pdata vpac270_ucb1400_pdata = {
|
|
.irq = IRQ_GPIO(BALLOON3_GPIO_CODEC_IRQ),
|
|
};
|
|
|
|
|
|
static struct platform_device balloon3_ucb1400_device = {
|
|
.name = "ucb1400_core",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &vpac270_ucb1400_pdata,
|
|
},
|
|
};
|
|
|
|
static void __init balloon3_ts_init(void)
|
|
{
|
|
if (!balloon3_has(BALLOON3_FEATURE_AUDIO))
|
|
return;
|
|
|
|
pxa_set_ac97_info(NULL);
|
|
platform_device_register(&balloon3_ucb1400_device);
|
|
}
|
|
#else
|
|
static inline void balloon3_ts_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* Framebuffer
|
|
******************************************************************************/
|
|
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
|
|
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_lcd_screen = {
|
|
.modes = balloon3_lcd_modes,
|
|
.num_modes = ARRAY_SIZE(balloon3_lcd_modes),
|
|
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
|
|
};
|
|
|
|
static void balloon3_backlight_power(int on)
|
|
{
|
|
gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on);
|
|
}
|
|
|
|
static void __init balloon3_lcd_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!balloon3_has(BALLOON3_FEATURE_TOPPOLY))
|
|
return;
|
|
|
|
ret = gpio_request(BALLOON3_GPIO_RUN_BACKLIGHT, "BKL-ON");
|
|
if (ret) {
|
|
pr_err("Requesting BKL-ON GPIO failed!\n");
|
|
goto err;
|
|
}
|
|
|
|
ret = gpio_direction_output(BALLOON3_GPIO_RUN_BACKLIGHT, 1);
|
|
if (ret) {
|
|
pr_err("Setting BKL-ON GPIO direction failed!\n");
|
|
goto err2;
|
|
}
|
|
|
|
balloon3_lcd_screen.pxafb_backlight_power = balloon3_backlight_power;
|
|
set_pxa_fb_info(&balloon3_lcd_screen);
|
|
return;
|
|
|
|
err2:
|
|
gpio_free(BALLOON3_GPIO_RUN_BACKLIGHT);
|
|
err:
|
|
return;
|
|
}
|
|
#else
|
|
static inline void balloon3_lcd_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* SD/MMC card controller
|
|
******************************************************************************/
|
|
#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
|
|
static struct pxamci_platform_data balloon3_mci_platform_data = {
|
|
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
|
|
.gpio_card_detect = -1,
|
|
.gpio_card_ro = -1,
|
|
.gpio_power = -1,
|
|
.detect_delay_ms = 200,
|
|
};
|
|
|
|
static void __init balloon3_mmc_init(void)
|
|
{
|
|
pxa_set_mci_info(&balloon3_mci_platform_data);
|
|
}
|
|
#else
|
|
static inline void balloon3_mmc_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* USB Gadget
|
|
******************************************************************************/
|
|
#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
|
|
static void balloon3_udc_command(int cmd)
|
|
{
|
|
if (cmd == PXA2XX_UDC_CMD_CONNECT)
|
|
UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
|
|
else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
|
|
UP2OCR &= ~UP2OCR_DPPUE;
|
|
}
|
|
|
|
static int balloon3_udc_is_connected(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static struct pxa2xx_udc_mach_info balloon3_udc_info __initdata = {
|
|
.udc_command = balloon3_udc_command,
|
|
.udc_is_connected = balloon3_udc_is_connected,
|
|
.gpio_pullup = -1,
|
|
};
|
|
|
|
static void __init balloon3_udc_init(void)
|
|
{
|
|
pxa_set_udc_info(&balloon3_udc_info);
|
|
platform_device_register(&balloon3_gpio_vbus);
|
|
}
|
|
#else
|
|
static inline void balloon3_udc_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* IrDA
|
|
******************************************************************************/
|
|
#if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
|
|
static struct pxaficp_platform_data balloon3_ficp_platform_data = {
|
|
.transceiver_cap = IR_FIRMODE | IR_SIRMODE | IR_OFF,
|
|
};
|
|
|
|
static void __init balloon3_irda_init(void)
|
|
{
|
|
pxa_set_ficp_info(&balloon3_ficp_platform_data);
|
|
}
|
|
#else
|
|
static inline void balloon3_irda_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* USB Host
|
|
******************************************************************************/
|
|
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
|
|
static struct pxaohci_platform_data balloon3_ohci_info = {
|
|
.port_mode = PMM_PERPORT_MODE,
|
|
.flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
|
|
};
|
|
|
|
static void __init balloon3_uhc_init(void)
|
|
{
|
|
if (!balloon3_has(BALLOON3_FEATURE_OHCI))
|
|
return;
|
|
pxa_set_ohci_info(&balloon3_ohci_info);
|
|
}
|
|
#else
|
|
static inline void balloon3_uhc_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* LEDs
|
|
******************************************************************************/
|
|
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
|
|
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_led_info = {
|
|
.leds = balloon3_gpio_leds,
|
|
.num_leds = ARRAY_SIZE(balloon3_gpio_leds),
|
|
};
|
|
|
|
static struct platform_device balloon3_leds = {
|
|
.name = "leds-gpio",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &balloon3_gpio_led_info,
|
|
}
|
|
};
|
|
|
|
static void __init balloon3_leds_init(void)
|
|
{
|
|
platform_device_register(&balloon3_leds);
|
|
}
|
|
#else
|
|
static inline void balloon3_leds_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* 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)
|
|
{
|
|
ARB_CNTRL = ARB_CORE_PARK | 0x234;
|
|
|
|
pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_pin_config));
|
|
|
|
pxa_set_ffuart_info(NULL);
|
|
pxa_set_btuart_info(NULL);
|
|
pxa_set_stuart_info(NULL);
|
|
|
|
pxa_set_i2c_info(NULL);
|
|
|
|
balloon3_irda_init();
|
|
balloon3_lcd_init();
|
|
balloon3_leds_init();
|
|
balloon3_mmc_init();
|
|
balloon3_nor_init();
|
|
balloon3_ts_init();
|
|
balloon3_udc_init();
|
|
balloon3_uhc_init();
|
|
}
|
|
|
|
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
|