USB: ehci-atmel: use pcr to enable or disable clock
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>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
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 @@
}
/* 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 @@
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 */