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Diffstat (limited to 'arch/arm/mach-mx5/usb_dr.c')
-rw-r--r--arch/arm/mach-mx5/usb_dr.c169
1 files changed, 17 insertions, 152 deletions
diff --git a/arch/arm/mach-mx5/usb_dr.c b/arch/arm/mach-mx5/usb_dr.c
index 4f36379b8d64..0878fd6e0d38 100644
--- a/arch/arm/mach-mx5/usb_dr.c
+++ b/arch/arm/mach-mx5/usb_dr.c
@@ -18,12 +18,12 @@
#include <linux/fsl_devices.h>
#include <mach/arc_otg.h>
#include <mach/hardware.h>
-#include <asm/delay.h>
#include "usb.h"
#if defined(CONFIG_USB_OTG) || defined(CONFIG_USB_EHCI_ARC_OTG) || defined(CONFIG_USB_GADGET_ARC)
static int usbotg_init_ext(struct platform_device *pdev);
static void usbotg_uninit_ext(struct fsl_usb2_platform_data *pdata);
+static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable);
static void usbotg_clock_gate(bool on);
/*
@@ -40,6 +40,7 @@ static struct fsl_usb2_platform_data dr_utmi_config = {
.gpio_usb_active = gpio_usbotg_hs_active,
.gpio_usb_inactive = gpio_usbotg_hs_inactive,
.usb_clock_for_pm = usbotg_clock_gate,
+ .wake_up_enable = _wake_up_enable,
.transceiver = "utmi",
};
@@ -47,13 +48,6 @@ static struct fsl_usb2_platform_data dr_utmi_config = {
static int usbotg_init_ext(struct platform_device *pdev)
{
struct clk *usb_clk;
- if (cpu_is_mx50()) {
- usb_clk = clk_get(&pdev->dev, "usb_phy1_clk");
- clk_enable(usb_clk);
- clk_put(usb_clk);
-
- return usbotg_init(pdev);
- }
usb_clk = clk_get(NULL, "usboh3_clk");
clk_enable(usb_clk);
@@ -75,15 +69,6 @@ static void usbotg_uninit_ext(struct fsl_usb2_platform_data *pdata)
{
struct clk *usb_clk;
- if (cpu_is_mx50()) {
- usb_clk = clk_get(&pdata->pdev->dev, "usb_phy1_clk");
- clk_disable(usb_clk);
- clk_put(usb_clk);
-
- usbotg_uninit(pdata);
- return;
- }
-
usb_clk = clk_get(NULL, "usboh3_clk");
clk_disable(usb_clk);
clk_put(usb_clk);
@@ -95,149 +80,33 @@ static void usbotg_uninit_ext(struct fsl_usb2_platform_data *pdata)
usbotg_uninit(pdata);
}
-#define ENABLED_BY_HOST (0x1 << 0)
-#define ENABLED_BY_DEVICE (0x1 << 1)
-#if defined(CONFIG_USB_EHCI_ARC_OTG) && defined(CONFIG_USB_GADGET_ARC)
-/* Below two macros are used at otg mode to indicate usb mode*/
-static u32 wakeup_irq_enable_src = 0;
-static void __wakeup_irq_enable(bool on, int source)
+static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable)
{
- /* otg host and device share the OWIE bit, only when host and device
- * all enable the wakeup irq, we can enable the OWIE bit
- */
- if (on) {
- wakeup_irq_enable_src |= source;
- if (wakeup_irq_enable_src == (ENABLED_BY_HOST | ENABLED_BY_DEVICE)) {
+ if (get_usb_mode(pdata) == FSL_USB_DR_DEVICE) {
+ if (enable) {
USBCTRL |= UCTRL_OWIE;
+ USBCTRL_HOST2 |= UCTRL_H2OVBWK_EN;
USB_PHY_CTR_FUNC |= USB_UTMI_PHYCTRL_CONF2;
- printk("OTG wakeup irq is enabled\n");
+ } else {
+ USBCTRL &= ~UCTRL_OWIE;
+ USBCTRL_HOST2 &= ~UCTRL_H2OVBWK_EN;
+ USB_PHY_CTR_FUNC &= ~USB_UTMI_PHYCTRL_CONF2;
}
- }else {
- printk("OTG wakeup irq disable\n");
- USB_PHY_CTR_FUNC &= ~USB_UTMI_PHYCTRL_CONF2;
- USBCTRL &= ~UCTRL_OWIE;
- wakeup_irq_enable_src &= ~source;
- /* The interrupt must be disabled for at least 3 clock
- * cycles of the standby clock(32k Hz) , that is 0.094 ms*/
- udelay(100);
- }
-}
-#else
-static void __wakeup_irq_enable(bool on, int source)
-{
- if (on) {
- USBCTRL |= UCTRL_OWIE;
- USB_PHY_CTR_FUNC |= USB_UTMI_PHYCTRL_CONF2;
- }else {
- USBCTRL &= ~UCTRL_OWIE;
- USB_PHY_CTR_FUNC &= ~USB_UTMI_PHYCTRL_CONF2;
- /* The interrupt must be disabled for at least 3 clock
- * cycles of the standby clock(32k Hz) , that is 0.094 ms*/
- udelay(100);
- }
-}
-#endif
-
-#ifdef CONFIG_USB_EHCI_ARC_OTG
-static void _host_wakeup_enable(struct fsl_usb2_platform_data *pdata, bool enable)
-{
- __wakeup_irq_enable(enable, ENABLED_BY_HOST);
- /* host only care the ID change wakeup event */
- if (enable) {
- USBCTRL_HOST2 |= UCTRL_H2OIDWK_EN;
- }else {
- USBCTRL_HOST2 &= ~UCTRL_H2OIDWK_EN;
- /* The interrupt must be disabled for at least 2 clock
- * cycles of the standby clock(32k Hz) , that is 0.0625 ms*/
- udelay(100);
- }
-}
-#endif
-
-#ifdef CONFIG_USB_GADGET_ARC
-static void _device_wakeup_enable(struct fsl_usb2_platform_data *pdata, bool enable)
-{
- __wakeup_irq_enable(enable, ENABLED_BY_DEVICE);
- /* if udc is not used by any gadget, we can not enable the vbus wakeup */
- if (!pdata->port_enables)
- {
- USBCTRL_HOST2 &= ~UCTRL_H2OVBWK_EN;
- return;
- }
- if (enable) {
- USBCTRL_HOST2 |= UCTRL_H2OVBWK_EN;
- }else {
- USBCTRL_HOST2 &= ~UCTRL_H2OVBWK_EN;
- }
-}
-#endif
-
-#if defined(CONFIG_USB_EHCI_ARC_OTG) && defined(CONFIG_USB_GADGET_ARC)
-static u32 low_power_enable_src = 0;
-static void __phy_lowpower_suspend(bool enable, int source)
-{
- if (enable) {
- low_power_enable_src |= source;
- if (low_power_enable_src == (ENABLED_BY_HOST | ENABLED_BY_DEVICE)) {
- UOG_PORTSC1 |= PORTSC_PHCD;
- printk("OTG phy lowpower enable\n");
+ } else {
+ if (enable) {
+ USBCTRL |= UCTRL_OWIE;
+ USBCTRL_HOST2 |= (1 << 5);
+ } else {
+ USBCTRL &= ~UCTRL_OWIE;
+ USBCTRL_HOST2 &= ~(1 << 5);
}
- }else {
- printk("OTG phy lowpower disable\n");
- UOG_PORTSC1 &= ~PORTSC_PHCD;
- low_power_enable_src &= ~source;
- }
-}
-#else
-static void __phy_lowpower_suspend(bool enable, int source)
-{
- if (enable) {
- UOG_PORTSC1 |= PORTSC_PHCD;
- }else {
- UOG_PORTSC1 &= ~PORTSC_PHCD;
}
}
-#endif
-
-#ifdef CONFIG_USB_EHCI_ARC_OTG
-static void _host_phy_lowpower_suspend(bool enable)
-{
- __phy_lowpower_suspend(enable, ENABLED_BY_HOST);
-}
-#endif
-
-#ifdef CONFIG_USB_GADGET_ARC
-static void _device_phy_lowpower_suspend(bool enable)
-{
- __phy_lowpower_suspend(enable, ENABLED_BY_DEVICE);
-}
-#endif
static void usbotg_clock_gate(bool on)
{
struct clk *usb_clk;
- if (cpu_is_mx50()) {
- if (on) {
- usb_clk = clk_get(NULL, "usb_ahb_clk");
- clk_enable(usb_clk);
- clk_put(usb_clk);
-
- usb_clk = clk_get(NULL, "usb_phy1_clk");
- clk_enable(usb_clk);
- clk_put(usb_clk);
- } else {
- usb_clk = clk_get(NULL, "usb_phy1_clk");
- clk_disable(usb_clk);
- clk_put(usb_clk);
-
- usb_clk = clk_get(NULL, "usb_ahb_clk");
- clk_disable(usb_clk);
- clk_put(usb_clk);
- }
- return;
- }
-
if (on) {
usb_clk = clk_get(NULL, "usb_ahb_clk");
clk_enable(usb_clk);
@@ -287,15 +156,11 @@ void __init mx5_usb_dr_init(void)
#endif
#ifdef CONFIG_USB_EHCI_ARC_OTG
dr_utmi_config.operating_mode = DR_HOST_MODE;
- dr_utmi_config.wake_up_enable = _host_wakeup_enable;
- dr_utmi_config.phy_lowpower_suspend = _host_phy_lowpower_suspend;
platform_device_add_data(&mxc_usbdr_host_device, &dr_utmi_config, sizeof(dr_utmi_config));
platform_device_register(&mxc_usbdr_host_device);
#endif
#ifdef CONFIG_USB_GADGET_ARC
dr_utmi_config.operating_mode = DR_UDC_MODE;
- dr_utmi_config.wake_up_enable = _device_wakeup_enable;
- dr_utmi_config.phy_lowpower_suspend = _device_phy_lowpower_suspend;
platform_device_add_data(&mxc_usbdr_udc_device, &dr_utmi_config, sizeof(dr_utmi_config));
platform_device_register(&mxc_usbdr_udc_device);
#endif
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-27 10:57:35 +0000