示例#1
0
文件: leds.c 项目: CSCLOG/beaglebone
static int __init
omap_leds_init(void)
{
	if (!cpu_class_is_omap1())
		return -ENODEV;

	if (machine_is_omap_innovator())
		leds_event = innovator_leds_event;

	else if (machine_is_omap_h2()
			|| machine_is_omap_h3()
			|| machine_is_omap_perseus2())
		leds_event = h2p2_dbg_leds_event;

	else if (machine_is_omap_osk())
		leds_event = osk_leds_event;

	else
		return -1;

	if (machine_is_omap_h2()
			|| machine_is_omap_h3()
#ifdef	CONFIG_OMAP_OSK_MISTRAL
			|| machine_is_omap_osk()
#endif
			) {

		/* LED1/LED2 pins can be used as GPIO (as done here), or by
		 * the LPG (works even in deep sleep!), to drive a bicolor
		 * LED on the H2 sample board, and another on the H2/P2
		 * "surfer" expansion board.
		 *
		 * The same pins drive a LED on the OSK Mistral board, but
		 * that's a different kind of LED (just one color at a time).
		 */
		omap_cfg_reg(P18_1610_GPIO3);
		if (gpio_request(3, "LED red") == 0)
			gpio_direction_output(3, 1);
		else
			printk(KERN_WARNING "LED: can't get GPIO3/red?\n");

		omap_cfg_reg(MPUIO4);
		if (gpio_request(OMAP_MPUIO(4), "LED green") == 0)
			gpio_direction_output(OMAP_MPUIO(4), 1);
		else
			printk(KERN_WARNING "LED: can't get MPUIO4/green?\n");
	}

	leds_event(led_start);
	return 0;
}
示例#2
0
static int  __init osk_ts_probe(struct omap_ts_t *ts)
{
#ifdef	CONFIG_OMAP_OSK_MISTRAL
	if (!machine_is_omap_osk())
		return -ENODEV;

        /* Configure GPIO4 (pin M17 ZDY) as /PENIRQ interrupt input */
        omap_cfg_reg(P20_1610_GPIO4);
	omap_request_gpio(4);
	omap_set_gpio_direction(4, 1);
	set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);

	ts->irq = PEN_IRQ;

	/* Configure uWire interface. ADS7846 is on CS0 */
	omap_uwire_configure_mode(ADS7846_UWIRE_CS, UWIRE_READ_RISING_EDGE |
		                                    UWIRE_WRITE_RISING_EDGE |
		                                    UWIRE_CS_ACTIVE_LOW |
				                    UWIRE_FREQ_DIV_2);

	/* FIXME verify there's really a Mistral board:
	 * see if the AD7846 chip responds.
	 */

	/* NOTE:  no VREF; must ignore the temp, VBAT, and AUX sensors */
	return 0;
#else
	return -ENODEV;
#endif
}
示例#3
0
/**
 * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs
 * @dev: USB Host Controller being removed
 * Context: !in_interrupt()
 *
 * Reverses the effect of usb_hcd_omap_probe(), first invoking
 * the HCD's stop() method.  It is always called from a thread
 * context, normally "rmmod", "apmd", or something similar.
 *
 */
void usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
	dev_info(&pdev->dev, "remove: state %x\n", hcd->state);

	if (in_interrupt ())
		BUG ();

	hcd->state = USB_STATE_QUIESCING;

	dev_dbg(&pdev->dev, "roothub graceful disconnect\n");
	usb_disconnect (&hcd->self.root_hub);

	hcd->driver->stop (hcd);
	hcd_buffer_destroy (hcd);
	hcd->state = USB_STATE_HALT;

	if (machine_is_omap_osk())
		omap_free_gpio(9);

	free_irq (hcd->irq, hcd);

	usb_deregister_bus (&hcd->self);

	omap_stop_hc(pdev);

	release_mem_region(pdev->resource[0].start, 
			   pdev->resource[0].end - pdev->resource[0].start + 1);
}
示例#4
0
static int __init osk_tps_init(void)
{
	if (!machine_is_omap_osk())
		return 0;

	/* Let LED1 (D9) blink */
	tps65010_set_led(LED1, BLINK);

	/* Disable LED 2 (D2) */
	tps65010_set_led(LED2, OFF);

	/* Set GPIO 1 HIGH to disable VBUS power supply;
	 * OHCI driver powers it up/down as needed.
	 */
	tps65010_set_gpio_out_value(GPIO1, HIGH);

	/* Set GPIO 2 low to turn on LED D3 */
	tps65010_set_gpio_out_value(GPIO2, HIGH);

	/* Set GPIO 3 low to take ethernet out of reset */
	tps65010_set_gpio_out_value(GPIO3, LOW);

	/* gpio4 for VDD_DSP */
	/* FIXME send power to DSP iff it's configured */

	/* Enable LOW_PWR */
	tps65010_set_low_pwr(ON);

	/* Switch VLDO2 to 3.0V for AIC23 */
	tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
			| TPS_LDO1_ENABLE);

	return 0;
}
示例#5
0
static int __init osk_soc_init(void)
{
	int err;
	u32 curRate;
	struct device *dev;

	if (!(machine_is_omap_osk()))
		return -ENODEV;

	osk_snd_device = platform_device_alloc("soc-audio", -1);
	if (!osk_snd_device)
		return -ENOMEM;

	platform_set_drvdata(osk_snd_device, &osk_snd_devdata);
	osk_snd_devdata.dev = &osk_snd_device->dev;
	*(unsigned int *)osk_dai.cpu_dai->private_data = 0;	/* McBSP1 */
	err = platform_device_add(osk_snd_device);
	if (err)
		goto err1;

	dev = &osk_snd_device->dev;

	tlv320aic23_mclk = clk_get(dev, "mclk");
	if (IS_ERR(tlv320aic23_mclk)) {
		printk(KERN_ERR "Could not get mclk clock\n");
		return -ENODEV;
	}

	if (clk_get_usecount(tlv320aic23_mclk) > 0) {
		/* MCLK is already in use */
		printk(KERN_WARNING
		       "MCLK in use at %d Hz. We change it to %d Hz\n",
		       (uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK);
	}

	/*
	 * Configure 12 MHz output on MCLK.
	 */
	curRate = (uint) clk_get_rate(tlv320aic23_mclk);
	if (curRate != CODEC_CLOCK) {
		if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) {
			printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n");
			err = -ECANCELED;
			goto err1;
		}
	}

	printk(KERN_INFO "MCLK = %d [%d], usecount = %d\n",
	       (uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK,
	       clk_get_usecount(tlv320aic23_mclk));

	return 0;
err1:
	clk_put(tlv320aic23_mclk);
	platform_device_del(osk_snd_device);
	platform_device_put(osk_snd_device);

	return err;

}
示例#6
0
static int __init osk_soc_init(void)
{
	int err;
	u32 curRate;
	struct device *dev;

	if (!(machine_is_omap_osk()))
		return -ENODEV;

	osk_snd_device = platform_device_alloc("soc-audio", -1);
	if (!osk_snd_device)
		return -ENOMEM;

	platform_set_drvdata(osk_snd_device, &snd_soc_card_osk);
	err = platform_device_add(osk_snd_device);
	if (err)
		goto err1;

	dev = &osk_snd_device->dev;

	tlv320aic23_mclk = clk_get(dev, "mclk");
	if (IS_ERR(tlv320aic23_mclk)) {
		printk(KERN_ERR "Could not get mclk clock\n");
		err = PTR_ERR(tlv320aic23_mclk);
		goto err2;
	}

	/*
	 * Configure 12 MHz output on MCLK.
	 */
	curRate = (uint) clk_get_rate(tlv320aic23_mclk);
	if (curRate != CODEC_CLOCK) {
		if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) {
			printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n");
			err = -ECANCELED;
			goto err3;
		}
	}

#ifdef CONFIG_DEBUG_PRINTK
	printk(KERN_INFO "MCLK = %d [%d]\n",
	       (uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK);
#else
	;
#endif

	return 0;

err3:
	clk_put(tlv320aic23_mclk);
err2:
	platform_device_del(osk_snd_device);
err1:
	platform_device_put(osk_snd_device);

	return err;

}
示例#7
0
static int __init omap_kp_probe(struct device *dev)
{
	int i;

	/* Disable the interrupt for the MPUIO keyboard */
	omap_writew(1, OMAP_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);

	if (machine_is_omap_h2() || machine_is_omap_h3()) {
		keymap = h2_keymap;
		set_bit(EV_REP, omap_kp_dev.evbit);
	} else if (machine_is_omap_innovator()) {
		keymap = innovator_keymap;
	} else if (machine_is_omap_osk()) {
		keymap = osk_keymap;
	} else {
		keymap = test_keymap;
	}

	init_timer(&kp_timer);
	kp_timer.function = omap_kp_timer;

	/* get the irq and init timer*/
	tasklet_enable(&kp_tasklet);
	if (request_irq(INT_KEYBOARD, omap_kp_interrupt, 0,
			"omap-keypad", 0) < 0)
		return -EINVAL;

	/* setup input device */
	set_bit(EV_KEY, omap_kp_dev.evbit);
	for (i = 0; keymap[i] != 0; i++)
		set_bit(keymap[i] & 0x00ffffff, omap_kp_dev.keybit);
	omap_kp_dev.name = "omap-keypad";
	input_register_device(&omap_kp_dev);

	if (machine_is_omap_h2() || machine_is_omap_h3()) {
		omap_cfg_reg(F18_1610_KBC0);
		omap_cfg_reg(D20_1610_KBC1);
		omap_cfg_reg(D19_1610_KBC2);
		omap_cfg_reg(E18_1610_KBC3);
		omap_cfg_reg(C21_1610_KBC4);

		omap_cfg_reg(G18_1610_KBR0);
		omap_cfg_reg(F19_1610_KBR1);
		omap_cfg_reg(H14_1610_KBR2);
		omap_cfg_reg(E20_1610_KBR3);
		omap_cfg_reg(E19_1610_KBR4);
		omap_cfg_reg(N19_1610_KBR5);

		omap_writew(0xff, OMAP_MPUIO_BASE + OMAP_MPUIO_GPIO_DEBOUNCING);
	}

	/* scan current status and enable interrupt */
	omap_kp_scan_keypad(keypad_state);
	omap_writew(0, OMAP_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);

	return 0;
}
示例#8
0
/**
 * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs
 * @dev: USB Host Controller being removed
 * Context: !in_interrupt()
 *
 * Reverses the effect of usb_hcd_omap_probe(), first invoking
 * the HCD's stop() method.  It is always called from a thread
 * context, normally "rmmod", "apmd", or something similar.
 *
 */
void usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
	usb_remove_hcd(hcd);
	if (machine_is_omap_osk())
		omap_free_gpio(9);
	omap_stop_hc(pdev);
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);
	clk_put(usb_host_ck);
}
示例#9
0
static int __init omap_uwire_init(void)
{
	spin_lock_init(&uwire_lock);
	uwire_write_reg(UWIRE_SR3, 1);
	if (machine_is_omap_h2() || machine_is_omap_osk()) {
		/* defaults: W21 SDO, U18 SDI, V19 SCL */
		omap_cfg_reg(N14_1610_UWIRE_CS0);
		omap_cfg_reg(N15_1610_UWIRE_CS1);
	}
	return 0;
}
示例#10
0
/*
 * Board specific gang-switched transceiver power on/off.
 * NOTE:  OSK supplies power from DC, not battery.
 */
static int omap_ohci_transceiver_power(int on)
{
	if (on) {
		if (machine_is_omap_innovator() && cpu_is_omap1510())
			fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL)
				| ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
			       INNOVATOR_FPGA_CAM_USB_CONTROL);
		else if (machine_is_omap_osk())
			tps65010_set_gpio_out_value(GPIO1, LOW);
	} else {
		if (machine_is_omap_innovator() && cpu_is_omap1510())
			fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL)
				& ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
			       INNOVATOR_FPGA_CAM_USB_CONTROL);
		else if (machine_is_omap_osk())
			tps65010_set_gpio_out_value(GPIO1, HIGH);
	}

	return 0;
}
示例#11
0
/*
 * Hardware specific transceiver power on/off
 */
static int omap_ohci_transceiver_power(int on)
{
	if (on) {
		if (machine_is_omap_innovator() && cpu_is_omap1510())
			fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL)
				| ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), 
			       INNOVATOR_FPGA_CAM_USB_CONTROL);
		else if (machine_is_omap_osk()) {
			/* FIXME: GPIO1 -> 1 on the TPS65010 I2C chip */
		}
	} else {
		if (machine_is_omap_innovator() && cpu_is_omap1510())
			fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL)
				& ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), 
			       INNOVATOR_FPGA_CAM_USB_CONTROL);
		else if (machine_is_omap_osk()) {
			/* FIXME: GPIO1 -> 0 on the TPS65010 I2C chip */
		}
	}

	return 0;
}
示例#12
0
static int __init osk_soc_init(void)
{
	int err;
	u32 curRate;
	struct device *dev;

	if (!(machine_is_omap_osk()))
		return -ENODEV;

	osk_snd_device = platform_device_alloc("soc-audio", -1);
	if (!osk_snd_device)
		return -ENOMEM;

	platform_set_drvdata(osk_snd_device, &osk_snd_devdata);
	osk_snd_devdata.dev = &osk_snd_device->dev;
	*(unsigned int *)osk_dai.cpu_dai->private_data = 0;	
	err = platform_device_add(osk_snd_device);
	if (err)
		goto err1;

	dev = &osk_snd_device->dev;

	tlv320aic23_mclk = clk_get(dev, "mclk");
	if (IS_ERR(tlv320aic23_mclk)) {
		printk(KERN_ERR "Could not get mclk clock\n");
		return -ENODEV;
	}

	
	curRate = (uint) clk_get_rate(tlv320aic23_mclk);
	if (curRate != CODEC_CLOCK) {
		if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) {
			printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n");
			err = -ECANCELED;
			goto err1;
		}
	}

	printk(KERN_INFO "MCLK = %d [%d]\n",
	       (uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK);

	return 0;
err1:
	clk_put(tlv320aic23_mclk);
	platform_device_del(osk_snd_device);
	platform_device_put(osk_snd_device);

	return err;

}
示例#13
0
/**
 * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs
 * @dev: USB Host Controller being removed
 * Context: !in_interrupt()
 *
 * Reverses the effect of usb_hcd_omap_probe(), first invoking
 * the HCD's stop() method.  It is always called from a thread
 * context, normally "rmmod", "apmd", or something similar.
 */
static inline void
usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
	usb_remove_hcd(hcd);
	if (!IS_ERR_OR_NULL(hcd->phy)) {
		(void) otg_set_host(hcd->phy->otg, 0);
		usb_put_phy(hcd->phy);
	}
	if (machine_is_omap_osk())
		gpio_free(9);
	iounmap(hcd->regs);
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);
	clk_put(usb_dc_ck);
	clk_put(usb_host_ck);
}
示例#14
0
/**
 * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs
 * @dev: USB Host Controller being removed
 * Context: !in_interrupt()
 *
 * Reverses the effect of usb_hcd_omap_probe(), first invoking
 * the HCD's stop() method.  It is always called from a thread
 * context, normally "rmmod", "apmd", or something similar.
 */
static inline void
usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);

	usb_remove_hcd(hcd);
	if (ohci->transceiver) {
		(void) otg_set_host(ohci->transceiver, 0);
		put_device(ohci->transceiver->dev);
	}
	if (machine_is_omap_osk())
		omap_free_gpio(9);
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);
	clk_put(usb_dc_ck);
	clk_put(usb_host_ck);
}
示例#15
0
文件: ohci-omap.c 项目: 7799/linux
/**
 * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs
 * @dev: USB Host Controller being removed
 * Context: !in_interrupt()
 *
 * Reverses the effect of usb_hcd_omap_probe(), first invoking
 * the HCD's stop() method.  It is always called from a thread
 * context, normally "rmmod", "apmd", or something similar.
 */
static inline void
usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
	dev_dbg(hcd->self.controller, "stopping USB Controller\n");
	usb_remove_hcd(hcd);
	omap_ohci_clock_power(0);
	if (!IS_ERR_OR_NULL(hcd->phy)) {
		(void) otg_set_host(hcd->phy->otg, 0);
		usb_put_phy(hcd->phy);
	}
	if (machine_is_omap_osk())
		gpio_free(9);
	iounmap(hcd->regs);
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);
	clk_put(usb_dc_ck);
	clk_put(usb_host_ck);
}
示例#16
0
static void omap_kp_scan_keypad(unsigned char *state)
{
	int col = 0;

	/* read the keypad status */
	omap_writew(0xff, OMAP_MPUIO_BASE + OMAP_MPUIO_KBC);
	for (col = 0; col < 8; col++) {
		omap_writew(~(1 << col) & 0xff, OMAP_MPUIO_BASE + OMAP_MPUIO_KBC);

		if (machine_is_omap_osk() || machine_is_omap_h2() || machine_is_omap_h3()) {
			udelay(9);
		} else {
			udelay(2);
		}

		state[col] = ~omap_readw(OMAP_MPUIO_BASE + OMAP_MPUIO_KBR_LATCH) & 0xff;
	}
	omap_writew(0x00, OMAP_MPUIO_BASE + OMAP_MPUIO_KBC);
	udelay(2);
}
示例#17
0
/**
 * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs
 * @dev: USB Host Controller being removed
 * Context: !in_interrupt()
 *
 * Reverses the effect of usb_hcd_omap_probe(), first invoking
 * the HCD's stop() method.  It is always called from a thread
 * context, normally "rmmod", "apmd", or something similar.
 */
static inline void
usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);

	usb_remove_hcd(hcd);
	if (ohci->transceiver) {
		(void) otg_set_host(ohci->transceiver, 0);
		put_device(ohci->transceiver->dev);
	}
#ifndef CONFIG_ARCH_OMAP34XX
	if (machine_is_omap_osk())
		gpio_free(9);
#endif
	iounmap(hcd->regs);
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);

#ifndef CONFIG_ARCH_OMAP34XX
	clk_put(usb_dc_ck);
	clk_put(usb_host_ck);
#endif
}
示例#18
0
static int ohci_omap_init(struct usb_hcd *hcd)
{
	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
	struct omap_usb_config	*config = hcd->self.controller->platform_data;
	int			need_transceiver = (config->otg != 0);
	int			ret;

	dev_dbg(hcd->self.controller, "starting USB Controller\n");

	if (config->otg) {
		ohci_to_hcd(ohci)->self.otg_port = config->otg;
		/*                                         */
		ohci_to_hcd(ohci)->power_budget = 8;
	}

	/*                                                  */
	need_transceiver = need_transceiver
			|| machine_is_omap_h2() || machine_is_omap_h3();

	if (cpu_is_omap16xx())
		ocpi_enable();

#ifdef	CONFIG_USB_OTG
	if (need_transceiver) {
		ohci->transceiver = usb_get_transceiver();
		if (ohci->transceiver) {
			int	status = otg_set_host(ohci->transceiver->otg,
						&ohci_to_hcd(ohci)->self);
			dev_dbg(hcd->self.controller, "init %s transceiver, status %d\n",
					ohci->transceiver->label, status);
			if (status) {
				if (ohci->transceiver)
					put_device(ohci->transceiver->dev);
				return status;
			}
		} else {
			dev_err(hcd->self.controller, "can't find transceiver\n");
			return -ENODEV;
		}
		ohci->start_hnp = start_hnp;
	}
#endif

	omap_ohci_clock_power(1);

	if (cpu_is_omap15xx()) {
		omap_1510_local_bus_power(1);
		omap_1510_local_bus_init();
	}

	if ((ret = ohci_init(ohci)) < 0)
		return ret;

	/*                                                        */
	if (machine_is_omap_osk() || machine_is_omap_innovator()) {
		u32	rh = roothub_a (ohci);

		/*                                     */
		rh &= ~RH_A_NPS;

		/*                                                  */
		if (machine_is_omap_osk()) {
			ohci_to_hcd(ohci)->power_budget = 250;

			rh &= ~RH_A_NOCP;

			/*                                */
			omap_cfg_reg(W8_1610_GPIO9);
			gpio_request(9, "OHCI overcurrent");
			gpio_direction_input(9);

			/*                                        */
			omap_cfg_reg(W4_USB_HIGHZ);
		}
		ohci_writel(ohci, rh, &ohci->regs->roothub.a);
		ohci->flags &= ~OHCI_QUIRK_HUB_POWER;
	} else if (machine_is_nokia770()) {
		/*                                                 
                      */
		ohci_to_hcd(ohci)->power_budget = 0;
	}

	/*                                                        */
	omap_ohci_transceiver_power(1);

	/*                                                        
                                                          
                                                             
  */

	return 0;
}
示例#19
0
static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev)
{
	struct omap_usb_config	*config = pdev->dev.platform_data;
	int			need_transceiver = (config->otg != 0);

	dev_dbg(&pdev->dev, "starting USB Controller\n");

	if (config->otg) {
		ohci->hcd.self.otg_port = config->otg;
		/* default/minimum OTG power budget:  8 mA */
		ohci->power_budget = 8;
	}

	/* boards can use OTG transceivers in non-OTG modes */
	need_transceiver = need_transceiver
			|| machine_is_omap_h2() || machine_is_omap_h3();

	if (cpu_is_omap16xx())
		ocpi_enable();

#ifdef	CONFIG_ARCH_OMAP_OTG
	if (need_transceiver) {
		ohci->transceiver = otg_get_transceiver();
		if (ohci->transceiver) {
			int	status = otg_set_host(ohci->transceiver,
						&ohci->hcd.self);
			dev_dbg(&pdev->dev, "init %s transceiver, status %d\n",
					ohci->transceiver->label, status);
			if (status) {
				if (ohci->transceiver)
					put_device(ohci->transceiver->dev);
				return status;
			}
		} else {
			dev_err(&pdev->dev, "can't find transceiver\n");
			return -ENODEV;
		}
	}
#endif

	if (machine_is_omap_osk()) {
		omap_request_gpio(9);
		omap_set_gpio_direction(9, 1);
		omap_set_gpio_dataout(9, 1);
	}

	omap_ohci_clock_power(1);

	omap_ohci_transceiver_power(1);

	if (cpu_is_omap1510()) {
		omap_1510_local_bus_power(1);
		omap_1510_local_bus_init();
	}

	/* board init will have already handled HMC and mux setup.
	 * any external transceiver should already be initialized
	 * too, so all configured ports use the right signaling now.
	 */

	return 0;
}
示例#20
0
static int ohci_omap_init(struct usb_hcd *hcd)
{
	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
	struct omap_usb_config	*config = hcd->self.controller->platform_data;
	int			need_transceiver = (config->otg != 0);
	int			ret;

	dev_dbg(hcd->self.controller, "starting USB Controller\n");

	if (config->otg) {
		ohci_to_hcd(ohci)->self.otg_port = config->otg;
		/* default/minimum OTG power budget:  8 mA */
		ohci_to_hcd(ohci)->power_budget = 8;
	}

	/* boards can use OTG transceivers in non-OTG modes */
	need_transceiver = need_transceiver
			|| machine_is_omap_h2() || machine_is_omap_h3();

	if (cpu_is_omap16xx())
		ocpi_enable();

#ifdef	CONFIG_ARCH_OMAP_OTG
	if (need_transceiver) {
		ohci->transceiver = otg_get_transceiver();
		if (ohci->transceiver) {
			int	status = otg_set_host(ohci->transceiver,
						&ohci_to_hcd(ohci)->self);
			dev_dbg(hcd->self.controller, "init %s transceiver, status %d\n",
					ohci->transceiver->label, status);
			if (status) {
				if (ohci->transceiver)
					put_device(ohci->transceiver->dev);
				return status;
			}
		} else {
			dev_err(hcd->self.controller, "can't find transceiver\n");
			return -ENODEV;
		}
	}
#endif

	omap_ohci_clock_power(1);

	if (cpu_is_omap1510()) {
		omap_1510_local_bus_power(1);
		omap_1510_local_bus_init();
	}

	if ((ret = ohci_init(ohci)) < 0)
		return ret;

	/* board-specific power switching and overcurrent support */
	if (machine_is_omap_osk() || machine_is_omap_innovator()) {
		u32	rh = roothub_a (ohci);

		/* power switching (ganged by default) */
		rh &= ~RH_A_NPS;

		/* TPS2045 switch for internal transceiver (port 1) */
		if (machine_is_omap_osk()) {
			ohci_to_hcd(ohci)->power_budget = 250;

			rh &= ~RH_A_NOCP;

			/* gpio9 for overcurrent detction */
			omap_cfg_reg(W8_1610_GPIO9);
			omap_request_gpio(9);
			omap_set_gpio_direction(9, 1 /* IN */);

			/* for paranoia's sake:  disable USB.PUEN */
			omap_cfg_reg(W4_USB_HIGHZ);
		}
		ohci_writel(ohci, rh, &ohci->regs->roothub.a);
		distrust_firmware = 0;
	} else if (machine_is_nokia770()) {
		/* We require a self-powered hub, which should have
		 * plenty of power. */
		ohci_to_hcd(ohci)->power_budget = 0;
	}

	/* FIXME khubd hub requests should manage power switching */
	omap_ohci_transceiver_power(1);

	/* board init will have already handled HMC and mux setup.
	 * any external transceiver should already be initialized
	 * too, so all configured ports use the right signaling now.
	 */

	return 0;
}
示例#21
0
文件: ohci-omap.c 项目: 7799/linux
static int ohci_omap_reset(struct usb_hcd *hcd)
{
	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
	struct omap_usb_config	*config = dev_get_platdata(hcd->self.controller);
	int			need_transceiver = (config->otg != 0);
	int			ret;

	dev_dbg(hcd->self.controller, "starting USB Controller\n");

	if (config->otg) {
		hcd->self.otg_port = config->otg;
		/* default/minimum OTG power budget:  8 mA */
		hcd->power_budget = 8;
	}

	/* boards can use OTG transceivers in non-OTG modes */
	need_transceiver = need_transceiver
			|| machine_is_omap_h2() || machine_is_omap_h3();

	/* XXX OMAP16xx only */
	if (config->ocpi_enable)
		config->ocpi_enable();

#ifdef	CONFIG_USB_OTG
	if (need_transceiver) {
		hcd->phy = usb_get_phy(USB_PHY_TYPE_USB2);
		if (!IS_ERR_OR_NULL(hcd->phy)) {
			int	status = otg_set_host(hcd->phy->otg,
						&ohci_to_hcd(ohci)->self);
			dev_dbg(hcd->self.controller, "init %s phy, status %d\n",
					hcd->phy->label, status);
			if (status) {
				usb_put_phy(hcd->phy);
				return status;
			}
		} else {
			dev_err(hcd->self.controller, "can't find phy\n");
			return -ENODEV;
		}
		ohci->start_hnp = start_hnp;
	}
#endif

	omap_ohci_clock_power(1);

	if (cpu_is_omap15xx()) {
		omap_1510_local_bus_power(1);
		omap_1510_local_bus_init();
	}

	ret = ohci_setup(hcd);
	if (ret < 0)
		return ret;

	if (config->otg || config->rwc) {
		ohci->hc_control = OHCI_CTRL_RWC;
		writel(OHCI_CTRL_RWC, &ohci->regs->control);
	}

	/* board-specific power switching and overcurrent support */
	if (machine_is_omap_osk() || machine_is_omap_innovator()) {
		u32	rh = roothub_a (ohci);

		/* power switching (ganged by default) */
		rh &= ~RH_A_NPS;

		/* TPS2045 switch for internal transceiver (port 1) */
		if (machine_is_omap_osk()) {
			ohci_to_hcd(ohci)->power_budget = 250;

			rh &= ~RH_A_NOCP;

			/* gpio9 for overcurrent detction */
			omap_cfg_reg(W8_1610_GPIO9);
			gpio_request(9, "OHCI overcurrent");
			gpio_direction_input(9);

			/* for paranoia's sake:  disable USB.PUEN */
			omap_cfg_reg(W4_USB_HIGHZ);
		}
		ohci_writel(ohci, rh, &ohci->regs->roothub.a);
		ohci->flags &= ~OHCI_QUIRK_HUB_POWER;
	} else if (machine_is_nokia770()) {
		/* We require a self-powered hub, which should have
		 * plenty of power. */
		ohci_to_hcd(ohci)->power_budget = 0;
	}

	/* FIXME khubd hub requests should manage power switching */
	omap_ohci_transceiver_power(1);

	/* board init will have already handled HMC and mux setup.
	 * any external transceiver should already be initialized
	 * too, so all configured ports use the right signaling now.
	 */

	return 0;
}