Those operations can be used for peripheral operation as well as host operation.
Signed-off-by: Jean-Jacques Hiblot jjhiblot@ti.com ---
drivers/usb/dwc3/core.c | 88 ++++++++++++++++++++++++++++++++++++++++- drivers/usb/dwc3/ep0.c | 1 - drivers/usb/host/xhci-dwc3.c | 93 +++----------------------------------------- include/dwc3-uboot.h | 7 ++++ 4 files changed, 99 insertions(+), 90 deletions(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index d5ee6d9..538c603 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -19,7 +19,7 @@ #include <asm/dma-mapping.h> #include <linux/ioport.h> #include <dm.h> - +#include <generic-phy.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h>
@@ -789,8 +789,92 @@ MODULE_AUTHOR("Felipe Balbi balbi@ti.com"); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver");
-#ifdef CONFIG_DM_USB_DEV +#ifdef CONFIG_DM_USB +int dwc3_setup_phy(struct udevice *dev, struct phy **array, int *num_phys) +{ + int i, ret, count; + struct phy *usb_phys; + + /* Return if no phy declared */ + if (!dev_read_prop(dev, "phys", NULL)) + return 0; + + count = dev_count_phandle_with_args(dev, "phys", "#phy-cells"); + if (count <= 0) + return count; + + usb_phys = devm_kcalloc(dev, count, sizeof(struct phy), + GFP_KERNEL); + if (!usb_phys) + return -ENOMEM; + + for (i = 0; i < count; i++) { + ret = generic_phy_get_by_index(dev, i, &usb_phys[i]); + if (ret && ret != -ENOENT) { + pr_err("Failed to get USB PHY%d for %s\n", + i, dev->name); + return ret; + } + } + + for (i = 0; i < count; i++) { + ret = generic_phy_init(&usb_phys[i]); + if (ret) { + pr_err("Can't init USB PHY%d for %s\n", + i, dev->name); + goto phys_init_err; + } + } + + for (i = 0; i < count; i++) { + ret = generic_phy_power_on(&usb_phys[i]); + if (ret) { + pr_err("Can't power USB PHY%d for %s\n", + i, dev->name); + goto phys_poweron_err; + } + } + + *num_phys = count; + return 0;
+phys_poweron_err: + for (i = count - 1; i >= 0; i--) + generic_phy_power_off(&usb_phys[i]); + + for (i = 0; i < count; i++) + generic_phy_exit(&usb_phys[i]); + + return ret; + +phys_init_err: + for (; i >= 0; i--) + generic_phy_exit(&usb_phys[i]); + + return ret; +} + +int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys, int num_phys) +{ + int i, ret; + + for (i = 0; i < num_phys; i++) { + if (!generic_phy_valid(&usb_phys[i])) + continue; + + ret = generic_phy_power_off(&usb_phys[i]); + ret |= generic_phy_exit(&usb_phys[i]); + if (ret) { + pr_err("Can't shutdown USB PHY%d for %s\n", + i, dev->name); + } + } + + return 0; +} +#endif + +#ifdef CONFIG_DM_USB_DEV int dwc3_init(struct dwc3 *dwc) { int ret; diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 4f68887..433e5f6 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -19,7 +19,6 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/usb/composite.h> - #include "core.h" #include "gadget.h" #include "io.h" diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c index 80754d7..052e704 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -12,6 +12,7 @@ #include <fdtdec.h> #include <generic-phy.h> #include <usb.h> +#include <dwc3-uboot.h>
#include "xhci.h" #include <asm/io.h> @@ -110,104 +111,20 @@ void dwc3_set_fladj(struct dwc3 *dwc3_reg, u32 val) }
#ifdef CONFIG_DM_USB -static int xhci_dwc3_setup_phy(struct udevice *dev) -{ - struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); - int i, ret, count; - - /* Return if no phy declared */ - if (!dev_read_prop(dev, "phys", NULL)) - return 0; - - count = dev_count_phandle_with_args(dev, "phys", "#phy-cells"); - if (count <= 0) - return count; - - plat->usb_phys = devm_kcalloc(dev, count, sizeof(struct phy), - GFP_KERNEL); - if (!plat->usb_phys) - return -ENOMEM; - - for (i = 0; i < count; i++) { - ret = generic_phy_get_by_index(dev, i, &plat->usb_phys[i]); - if (ret && ret != -ENOENT) { - pr_err("Failed to get USB PHY%d for %s\n", - i, dev->name); - return ret; - } - - ++plat->num_phys; - } - - for (i = 0; i < plat->num_phys; i++) { - ret = generic_phy_init(&plat->usb_phys[i]); - if (ret) { - pr_err("Can't init USB PHY%d for %s\n", - i, dev->name); - goto phys_init_err; - } - } - - for (i = 0; i < plat->num_phys; i++) { - ret = generic_phy_power_on(&plat->usb_phys[i]); - if (ret) { - pr_err("Can't power USB PHY%d for %s\n", - i, dev->name); - goto phys_poweron_err; - } - } - - return 0; - -phys_poweron_err: - for (; i >= 0; i--) - generic_phy_power_off(&plat->usb_phys[i]); - - for (i = 0; i < plat->num_phys; i++) - generic_phy_exit(&plat->usb_phys[i]); - - return ret; - -phys_init_err: - for (; i >= 0; i--) - generic_phy_exit(&plat->usb_phys[i]); - - return ret; -} - -static int xhci_dwc3_shutdown_phy(struct udevice *dev) -{ - struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); - int i, ret; - - for (i = 0; i < plat->num_phys; i++) { - if (!generic_phy_valid(&plat->usb_phys[i])) - continue; - - ret = generic_phy_power_off(&plat->usb_phys[i]); - ret |= generic_phy_exit(&plat->usb_phys[i]); - if (ret) { - pr_err("Can't shutdown USB PHY%d for %s\n", - i, dev->name); - } - } - - return 0; -} - static int xhci_dwc3_probe(struct udevice *dev) { struct xhci_hcor *hcor; struct xhci_hccr *hccr; struct dwc3 *dwc3_reg; enum usb_dr_mode dr_mode; + struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); int ret;
hccr = (struct xhci_hccr *)((uintptr_t)dev_read_addr(dev)); hcor = (struct xhci_hcor *)((uintptr_t)hccr + HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
- ret = xhci_dwc3_setup_phy(dev); + ret = dwc3_setup_phy(dev, &plat->usb_phys, &plat->num_phys); if (ret) return ret;
@@ -227,7 +144,9 @@ static int xhci_dwc3_probe(struct udevice *dev)
static int xhci_dwc3_remove(struct udevice *dev) { - xhci_dwc3_shutdown_phy(dev); + struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); + + dwc3_shutdown_phy(dev, plat->usb_phys, plat->num_phys);
return xhci_deregister(dev); } diff --git a/include/dwc3-uboot.h b/include/dwc3-uboot.h index 228ab3b..a2da081 100644 --- a/include/dwc3-uboot.h +++ b/include/dwc3-uboot.h @@ -38,4 +38,11 @@ struct dwc3_device { int dwc3_uboot_init(struct dwc3_device *dev); void dwc3_uboot_exit(int index); void dwc3_uboot_handle_interrupt(int index); + +#ifdef CONFIG_DM_USB +struct phy; +int dwc3_setup_phy(struct udevice *dev, struct phy **array, int *num_phys); +int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys, int num_phys); +#endif + #endif /* __DWC3_UBOOT_H_ */