diff mbox

[U-Boot,4/4] USB: ehci-atmel: use pcr to enable or disable clock

Message ID 1407317097-22731-5-git-send-email-voice.shen@atmel.com
State Accepted, archived
Delegated to: Andreas Bießmann
Headers show

Commit Message

Bo Shen Aug. 6, 2014, 9:24 a.m. UTC 
If the SoC has pcr, we use pcr (peripheral control register)
to enable or disable clock.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
---

 drivers/usb/host/ehci-atmel.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Comments

Andreas Bießmann Sept. 19, 2014, 6:32 a.m. UTC | #1 
Dear Bo Shen,

Bo Shen <voice.shen@atmel.com> writes:
>If the SoC has pcr, we use pcr (peripheral control register)
>to enable or disable clock.
>
>Signed-off-by: Bo Shen <voice.shen@atmel.com>
>---
>
> drivers/usb/host/ehci-atmel.c | 8 ++++++++
> 1 file changed, 8 insertions(+)

applied to u-boot-atmel/master, thanks!

Best regards,
Andreas Bießmann
diff mbox

Patch

diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 9ffe501..9a8f004 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -40,7 +40,11 @@  int ehci_hcd_init(int index, enum usb_init_type init,
 	}
 
 	/* Enable USB Host clock */
+#ifdef CPU_HAS_PCR
+	at91_periph_clk_enable(ATMEL_ID_UHPHS);
+#else
 	writel(1 << ATMEL_ID_UHPHS, &pmc->pcer);
+#endif
 
 	*hccr = (struct ehci_hccr *)ATMEL_BASE_EHCI;
 	*hcor = (struct ehci_hcor *)((uint32_t)*hccr +
@@ -55,7 +59,11 @@  int ehci_hcd_stop(int index)
 	ulong start_time, tmp_time;
 
 	/* Disable USB Host Clock */
+#ifdef CPU_HAS_PCR
+	at91_periph_clk_disable(ATMEL_ID_UHPHS);
+#else
 	writel(1 << ATMEL_ID_UHPHS, &pmc->pcdr);
+#endif
 
 	start_time = get_timer(0);
 	/* Disable UTMI PLL */