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usb: host: xhci-dwc3: Add generic PHY support

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Add support of generic PHY framework support

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Patrice Chotard 2017-07-18 11:38:44 +02:00 committed by Marek Vasut
parent b94888b4c0
commit f56db163ad
1 changed files with 32 additions and 0 deletions
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32
drivers/usb/host/xhci-dwc3.c
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@ -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,
@ -112,11 +118,26 @@ static int xhci_dwc3_probe(struct udevice *dev)
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 +154,17 @@ 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);
}