lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-ID: <5319CCF2.8090902@ti.com> Date: Fri, 7 Mar 2014 15:43:14 +0200 From: Tero Kristo <t-kristo@...com> To: Roger Quadros <rogerq@...com>, <balbi@...com>, <tony@...mide.com> CC: <kishon@...com>, <george.cherian@...com>, <linux-omap@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>, <linux-usb@...r.kernel.org>, Mike Turquette <mturquette@...aro.org> Subject: Re: [PATCH 1/8] CLK: ti: dra7: Initialize USB_DPLL On 03/07/2014 03:09 PM, Roger Quadros wrote: > USB_DPLL must be initialized and locked at boot so that > USB modules can work. > > Also program USB_DLL_M2 output to half rate. > > CC: Mike Turquette <mturquette@...aro.org> > CC: Tero Kristo <t-kristo@...com> > Signed-off-by: Roger Quadros <rogerq@...com> > --- > drivers/clk/ti/clk-7xx.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c > index 9977653..f89f3c2 100644 > --- a/drivers/clk/ti/clk-7xx.c > +++ b/drivers/clk/ti/clk-7xx.c > @@ -18,6 +18,7 @@ > > #define DRA7_DPLL_ABE_DEFFREQ 361267200 > #define DRA7_DPLL_GMAC_DEFFREQ 1000000000 > +#define DRA7_DPLL_USB_DEFFREQ 960000000 > > > static struct ti_dt_clk dra7xx_clks[] = { > @@ -328,5 +329,15 @@ int __init dra7xx_dt_clk_init(void) > if (rc) > pr_err("%s: failed to configure GMAC DPLL!\n", __func__); > > + dpll_ck = clk_get_sys(NULL, "dpll_usb_ck"); > + rc = clk_set_rate(dpll_ck, DRA7_DPLL_USB_DEFFREQ); > + if (rc) > + pr_err("%s: failed to configure USB DPLL!\n", __func__); > + > + dpll_ck = clk_get_sys(NULL, "dpll_usb_m2_ck"); > + rc = clk_set_rate(dpll_ck, DRA7_DPLL_USB_DEFFREQ/2); > + if (rc) > + pr_err("%s: failed to set USB_DPLL M2 OUT\n", __func__); > + I would rather see this done using the default-rate mechanism provided here: https://www.mail-archive.com/linux-omap@vger.kernel.org/msg101300.html However, this remains to be commented by Mike whether the patch is okay or not. -Tero > return rc; > } > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists