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usb: host: ehci: samsung: Move hcor initialization after usb phy setup

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With the old order of initialization the hcor pointer has been setup to
the same address as Exynos EHCI base address (0x12110000 instead of
0x12110010).
Such behaviour was caused by reading value of 0 instead of 0x10 from EHCI
HCCPBASE register without doing proper clock initialization before.

To fix this problem hcor initialization has been moved after USB PHY setup.
Now ehci_readl(&ctx->hcd->cr_capbase) returns correct value.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Lukasz Majewski 2015-12-10 16:32:25 +01:00 • committed by Marek Vasut
parent 5d5716eebc
commit 70cc443d58
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/ehci-exynos.c
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@ -219,14 +219,14 @@ static int ehci_usb_probe(struct udevice *dev)
ctx->hcd = (struct ehci_hccr *)plat->hcd_base;
ctx->usb = (struct exynos_usb_phy *)plat->phy_base;
hcor = (struct ehci_hcor *)((uint32_t)ctx->hcd +
HC_LENGTH(ehci_readl(&ctx->hcd->cr_capbase)));
/* setup the Vbus gpio here */
if (dm_gpio_is_valid(&plat->vbus_gpio))
dm_gpio_set_value(&plat->vbus_gpio, 1);
setup_usb_phy(ctx->usb);
hcor = (struct ehci_hcor *)((uint32_t)ctx->hcd +
HC_LENGTH(ehci_readl(&ctx->hcd->cr_capbase)));
return ehci_register(dev, ctx->hcd, hcor, NULL, 0, USB_INIT_HOST);
}