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usb: host: ehci-generic: add generic PHY support

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Extend ehci-generic driver with generic PHY framework

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Patrice Chotard 2017-07-18 11:57:11 +02:00 committed by Marek Vasut
parent a1cee8e808
commit 0d0ba1a73d
1 changed files with 30 additions and 1 deletions
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31
drivers/usb/host/ehci-generic.c
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@ -7,6 +7,7 @@
#include <common.h> #include <common.h>
#include <clk.h> #include <clk.h>
#include <dm/ofnode.h> #include <dm/ofnode.h>
#include <generic-phy.h>
#include <reset.h> #include <reset.h>
#include <asm/io.h> #include <asm/io.h>
#include <dm.h> #include <dm.h>
@ -21,6 +22,7 @@ struct generic_ehci {
struct ehci_ctrl ctrl; struct ehci_ctrl ctrl;
struct clk *clocks; struct clk *clocks;
struct reset_ctl *resets; struct reset_ctl *resets;
struct phy phy;
int clock_count; int clock_count;
int reset_count; int reset_count;
}; };
@ -91,16 +93,37 @@ static int ehci_usb_probe(struct udevice *dev)
} }
} }
err = generic_phy_get_by_index(dev, 0, &priv->phy);
if (err) {
if (err != -ENOENT) {
error("failed to get usb phy\n");
goto reset_err;
}
}
err = generic_phy_init(&priv->phy);
if (err) {
error("failed to init usb phy\n");
goto reset_err;
}
hccr = map_physmem(devfdt_get_addr(dev), 0x100, MAP_NOCACHE); hccr = map_physmem(devfdt_get_addr(dev), 0x100, MAP_NOCACHE);
hcor = (struct ehci_hcor *)((uintptr_t)hccr + hcor = (struct ehci_hcor *)((uintptr_t)hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase))); HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
err = ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST); err = ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
if (err) if (err)
goto reset_err; goto phy_err;
return 0; return 0;
phy_err:
if (generic_phy_valid(&priv->phy)) {
ret = generic_phy_exit(&priv->phy);
if (ret)
error("failed to release phy\n");
}
reset_err: reset_err:
ret = reset_release_all(priv->resets, priv->reset_count); ret = reset_release_all(priv->resets, priv->reset_count);
if (ret) if (ret)
@ -122,6 +145,12 @@ static int ehci_usb_remove(struct udevice *dev)
if (ret) if (ret)
return ret; return ret;
if (generic_phy_valid(&priv->phy)) {
ret = generic_phy_exit(&priv->phy);
if (ret)
return ret;
}
ret = reset_release_all(priv->resets, priv->reset_count); ret = reset_release_all(priv->resets, priv->reset_count);
if (ret) if (ret)
return ret; return ret;