From 97b2043da6d4e4cc65df90f405583c020429d798 Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Wed, 6 Aug 2014 17:24:57 +0800 Subject: [PATCH] USB: ehci-atmel: use pcr to enable or disable clock MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit If the SoC has pcr, we use pcr (peripheral control register) to enable or disable clock. Signed-off-by: Bo Shen Signed-off-by: Andreas Bießmann --- drivers/usb/host/ehci-atmel.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 9ffe5010be..9a8f004ece 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 */ -- 2.30.2