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authorBo Shen <voice.shen@atmel.com>2014-08-06 17:24:57 +0800
committerAndreas Bießmann <andreas.devel@googlemail.com>2014-09-19 00:11:21 +0200
commit97b2043da6d4e4cc65df90f405583c020429d798 (patch)
treef71052767ca79b14a2b69b03e8ed419c1eaaecb6 /drivers/usb/host
parent01c8bf5a6faf3173f130ca58ecc8656bc71adc5a (diff)
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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>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/ehci-atmel.c8
1 files changed, 8 insertions, 0 deletions
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 */