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usb: add clock support for generic EHCI 

This driver is designed in a generic manner, so clocks should be
handled genericly as well.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2016-01-25 15:00:36 +09:00 committed by Marek Vasut
parent 9dc8ba19c5
commit 4feefdcfe9
1 changed files with 14 additions and 0 deletions
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14
drivers/usb/host/ehci-generic.c
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@ -5,6 +5,7 @@
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include "ehci.h"
@ -21,6 +22,19 @@ static int ehci_usb_probe(struct udevice *dev)
{
struct ehci_hccr *hccr = (struct ehci_hccr *)dev_get_addr(dev);
struct ehci_hcor *hcor;
int i;
for (i = 0; ; i++) {
struct udevice *clk_dev;
int clk_id;
clk_id = clk_get_by_index(dev, i, &clk_dev);
if (clk_id < 0)
break;
if (clk_enable(clk_dev, clk_id))
printf("failed to enable clock (dev=%s, id=%d)\n",
clk_dev->name, clk_id);
}
hcor = (struct ehci_hcor *)((uintptr_t)hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));