From: Patrice Chotard patrice.chotard@st.com
Add support of generic PHY framework support
Signed-off-by: Patrice Chotard patrice.chotard@st.com ---
v8: _ fix bisection issue with patch 1 reported by Łukasz Majewski, move struct xhci_dwc3_platdata in this patch to fix it. v7: _ none v6: _ none v5: _ none v4: _ none v3: _ use generic_phy_valid() method v2: _ none
drivers/usb/host/xhci-dwc3.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+)
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c index cab0c2a..4b2fe71 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -10,6 +10,8 @@
#include <common.h> #include <dm.h> +#include <fdtdec.h> +#include <generic-phy.h> #include <usb.h>
#include "xhci.h" @@ -19,6 +21,10 @@
DECLARE_GLOBAL_DATA_PTR;
+struct xhci_dwc3_platdata { + struct phy usb_phy; +}; + void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode) { clrsetbits_le32(&dwc3_reg->g_ctl, @@ -108,15 +114,31 @@ void dwc3_set_fladj(struct dwc3 *dwc3_reg, u32 val) #ifdef CONFIG_DM_USB static int xhci_dwc3_probe(struct udevice *dev) { + struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); struct xhci_hcor *hcor; struct xhci_hccr *hccr; struct dwc3 *dwc3_reg; enum usb_dr_mode dr_mode; + int ret;
hccr = (struct xhci_hccr *)devfdt_get_addr(dev); hcor = (struct xhci_hcor *)((phys_addr_t)hccr + HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
+ ret = generic_phy_get_by_index(dev, 0, &plat->usb_phy); + if (ret) { + if (ret != -ENOENT) { + error("Failed to get USB PHY for %s\n", dev->name); + return ret; + } + } else { + ret = generic_phy_init(&plat->usb_phy); + if (ret) { + error("Can't init USB PHY for %s\n", dev->name); + return ret; + } + } + dwc3_reg = (struct dwc3 *)((char *)(hccr) + DWC3_REG_OFFSET);
dwc3_core_init(dwc3_reg); @@ -133,6 +155,17 @@ static int xhci_dwc3_probe(struct udevice *dev)
static int xhci_dwc3_remove(struct udevice *dev) { + struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); + int ret; + + if (generic_phy_valid(&plat->usb_phy)) { + ret = generic_phy_exit(&plat->usb_phy); + if (ret) { + error("Can't deinit USB PHY for %s\n", dev->name); + return ret; + } + } + return xhci_deregister(dev); }
@@ -149,6 +182,7 @@ U_BOOT_DRIVER(xhci_dwc3) = { .remove = xhci_dwc3_remove, .ops = &xhci_usb_ops, .priv_auto_alloc_size = sizeof(struct xhci_ctrl), + .platdata_auto_alloc_size = sizeof(struct xhci_dwc3_platdata), .flags = DM_FLAG_ALLOC_PRIV_DMA, }; #endif