* [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time
@ 2011-01-19 15:32 Fabio Estevam
2011-01-19 15:36 ` Eric Bénard
0 siblings, 1 reply; 6+ messages in thread
From: Fabio Estevam @ 2011-01-19 15:32 UTC (permalink / raw)
To: linux-arm-kernel
Instead of checking the CPU type in build-time, do it in run-time.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
drivers/usb/gadget/fsl_mxc_udc.c | 23 ++++++++++++-----------
1 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
index 77b1eb5..167abe0 100644
--- a/drivers/usb/gadget/fsl_mxc_udc.c
+++ b/drivers/usb/gadget/fsl_mxc_udc.c
@@ -88,17 +88,18 @@ eenahb:
void fsl_udc_clk_finalize(struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
-#if defined(CONFIG_ARCH_MX35)
- unsigned int v;
-
- /* workaround ENGcm09152 for i.MX35 */
- if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {
- v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
- USBPHYCTRL_OTGBASE_OFFSET));
- writel(v | USBPHYCTRL_EVDO, MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
- USBPHYCTRL_OTGBASE_OFFSET));
- }
-#endif
+ if (cpu_is_mx35()) {
+ unsigned int v;
+
+ /* workaround ENGcm09152 for i.MX35 */
+ if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {
+ v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
+ USBPHYCTRL_OTGBASE_OFFSET));
+ writel(v | USBPHYCTRL_EVDO,
+ MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
+ USBPHYCTRL_OTGBASE_OFFSET));
+ }
+ }
/* ULPI transceivers don't need usbpll */
if (pdata->phy_mode == FSL_USB2_PHY_ULPI) {
--
1.6.0.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time
2011-01-19 15:32 [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time Fabio Estevam
@ 2011-01-19 15:36 ` Eric Bénard
2011-01-19 16:08 ` Fabio Estevam
2011-01-19 17:09 ` Fabio Estevam
0 siblings, 2 replies; 6+ messages in thread
From: Eric Bénard @ 2011-01-19 15:36 UTC (permalink / raw)
To: linux-arm-kernel
Hi Fabio,
On 19/01/2011 16:32, Fabio Estevam wrote:
> Instead of checking the CPU type in build-time, do it in run-time.
>
> Signed-off-by: Fabio Estevam<fabio.estevam@freescale.com>
> ---
> drivers/usb/gadget/fsl_mxc_udc.c | 23 ++++++++++++-----------
> 1 files changed, 12 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
> index 77b1eb5..167abe0 100644
> --- a/drivers/usb/gadget/fsl_mxc_udc.c
> +++ b/drivers/usb/gadget/fsl_mxc_udc.c
> @@ -88,17 +88,18 @@ eenahb:
> void fsl_udc_clk_finalize(struct platform_device *pdev)
> {
> struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
> -#if defined(CONFIG_ARCH_MX35)
> - unsigned int v;
> -
> - /* workaround ENGcm09152 for i.MX35 */
> - if (pdata->workaround& FLS_USB2_WORKAROUND_ENGCM09152) {
> - v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> - USBPHYCTRL_OTGBASE_OFFSET));
> - writel(v | USBPHYCTRL_EVDO, MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> - USBPHYCTRL_OTGBASE_OFFSET));
> - }
> -#endif
> + if (cpu_is_mx35()) {
> + unsigned int v;
> +
> + /* workaround ENGcm09152 for i.MX35 */
> + if (pdata->workaround& FLS_USB2_WORKAROUND_ENGCM09152) {
> + v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> + USBPHYCTRL_OTGBASE_OFFSET));
> + writel(v | USBPHYCTRL_EVDO,
> + MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> + USBPHYCTRL_OTGBASE_OFFSET));
> + }
> + }
>
are you sure this compiles when MX35 is not selected ?
Eric
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time
2011-01-19 15:36 ` Eric Bénard
@ 2011-01-19 16:08 ` Fabio Estevam
2011-01-19 17:09 ` Fabio Estevam
1 sibling, 0 replies; 6+ messages in thread
From: Fabio Estevam @ 2011-01-19 16:08 UTC (permalink / raw)
To: linux-arm-kernel
On 1/19/2011 1:36 PM, Eric B?nard wrote:
...
> are you sure this compiles when MX35 is not selected ?
You?re right. Doesn?t build when I tried a mx5 kernel.
We can?t use this approach then.
Thanks,
Fabio Estevam
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time
2011-01-19 15:36 ` Eric Bénard
2011-01-19 16:08 ` Fabio Estevam
@ 2011-01-19 17:09 ` Fabio Estevam
2011-01-19 18:54 ` Uwe Kleine-König
1 sibling, 1 reply; 6+ messages in thread
From: Fabio Estevam @ 2011-01-19 17:09 UTC (permalink / raw)
To: linux-arm-kernel
On 1/19/2011 1:36 PM, Eric B?nard wrote:
> Hi Fabio,
>
> On 19/01/2011 16:32, Fabio Estevam wrote:
>> Instead of checking the CPU type in build-time, do it in run-time.
>>
>> Signed-off-by: Fabio Estevam<fabio.estevam@freescale.com>
>> ---
>> drivers/usb/gadget/fsl_mxc_udc.c | 23 ++++++++++++-----------
>> 1 files changed, 12 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
>> index 77b1eb5..167abe0 100644
>> --- a/drivers/usb/gadget/fsl_mxc_udc.c
>> +++ b/drivers/usb/gadget/fsl_mxc_udc.c
>> @@ -88,17 +88,18 @@ eenahb:
>> void fsl_udc_clk_finalize(struct platform_device *pdev)
>> {
>> struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
>> -#if defined(CONFIG_ARCH_MX35)
>> - unsigned int v;
>> -
>> - /* workaround ENGcm09152 for i.MX35 */
>> - if (pdata->workaround& FLS_USB2_WORKAROUND_ENGCM09152) {
>> - v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
>> - USBPHYCTRL_OTGBASE_OFFSET));
>> - writel(v | USBPHYCTRL_EVDO, MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
>> - USBPHYCTRL_OTGBASE_OFFSET));
>> - }
>> -#endif
>> + if (cpu_is_mx35()) {
>> + unsigned int v;
>> +
>> + /* workaround ENGcm09152 for i.MX35 */
>> + if (pdata->workaround& FLS_USB2_WORKAROUND_ENGCM09152) {
>> + v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
>> + USBPHYCTRL_OTGBASE_OFFSET));
>> + writel(v | USBPHYCTRL_EVDO,
>> + MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
>> + USBPHYCTRL_OTGBASE_OFFSET));
>> + }
>> + }
>>
> are you sure this compiles when MX35 is not selected ?
Including #include <mach/mx35.h> fixes the build for a non- mx35 kernel.
Would this be acceptable? If so, I can send v2.
Regards,
Fabio Estevam
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time
2011-01-19 17:09 ` Fabio Estevam
@ 2011-01-19 18:54 ` Uwe Kleine-König
2011-01-19 20:07 ` Fabio Estevam
0 siblings, 1 reply; 6+ messages in thread
From: Uwe Kleine-König @ 2011-01-19 18:54 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Jan 19, 2011 at 03:09:15PM -0200, Fabio Estevam wrote:
> On 1/19/2011 1:36 PM, Eric B?nard wrote:
> > Hi Fabio,
> >
> > On 19/01/2011 16:32, Fabio Estevam wrote:
> >> Instead of checking the CPU type in build-time, do it in run-time.
> >>
> >> Signed-off-by: Fabio Estevam<fabio.estevam@freescale.com>
> >> ---
> >> drivers/usb/gadget/fsl_mxc_udc.c | 23 ++++++++++++-----------
> >> 1 files changed, 12 insertions(+), 11 deletions(-)
> >>
> >> diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
> >> index 77b1eb5..167abe0 100644
> >> --- a/drivers/usb/gadget/fsl_mxc_udc.c
> >> +++ b/drivers/usb/gadget/fsl_mxc_udc.c
> >> @@ -88,17 +88,18 @@ eenahb:
> >> void fsl_udc_clk_finalize(struct platform_device *pdev)
> >> {
> >> struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
> >> -#if defined(CONFIG_ARCH_MX35)
> >> - unsigned int v;
> >> -
> >> - /* workaround ENGcm09152 for i.MX35 */
> >> - if (pdata->workaround& FLS_USB2_WORKAROUND_ENGCM09152) {
> >> - v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> >> - USBPHYCTRL_OTGBASE_OFFSET));
> >> - writel(v | USBPHYCTRL_EVDO, MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> >> - USBPHYCTRL_OTGBASE_OFFSET));
> >> - }
> >> -#endif
> >> + if (cpu_is_mx35()) {
> >> + unsigned int v;
> >> +
> >> + /* workaround ENGcm09152 for i.MX35 */
> >> + if (pdata->workaround& FLS_USB2_WORKAROUND_ENGCM09152) {
can you please fix up the position of the '&'?
> >> + v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> >> + USBPHYCTRL_OTGBASE_OFFSET));
> >> + writel(v | USBPHYCTRL_EVDO,
> >> + MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
> >> + USBPHYCTRL_OTGBASE_OFFSET));
I wonder if the address isn't mapped via ioremap in the driver and the
cookie saved somewhere? (And no, I don't ask you to change that in this
patch.) (If so, it this already problematic aliasing?)
> >> + }
> >> + }
> >>
> > are you sure this compiles when MX35 is not selected ?
>
> Including #include <mach/mx35.h> fixes the build for a non- mx35 kernel.
>
> Would this be acceptable? If so, I can send v2.
If you keep the #if defined(CONFIG_ARCH_MX35) and only add the if
(cpu_is_mx35()) it should work without a new #include.
Doing that seems a tad cleaner to me.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-K?nig |
Industrial Linux Solutions | http://www.pengutronix.de/ |
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time
2011-01-19 18:54 ` Uwe Kleine-König
@ 2011-01-19 20:07 ` Fabio Estevam
0 siblings, 0 replies; 6+ messages in thread
From: Fabio Estevam @ 2011-01-19 20:07 UTC (permalink / raw)
To: linux-arm-kernel
Hi Uwe,
On Wed, Jan 19, 2011 at 4:54 PM, Uwe Kleine-K?nig
<u.kleine-koenig@pengutronix.de> wrote:
...
> can you please fix up the position of the '&'?
The original patch had the '&' in the correct position. Looks like it
got shifted on some of the replies.
>
>> >> + ? ? ? ? ? ?v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
>> >> + ? ? ? ? ? ? ? ? ? ?USBPHYCTRL_OTGBASE_OFFSET));
>> >> + ? ? ? ? ? ?writel(v | USBPHYCTRL_EVDO,
>> >> + ? ? ? ? ? ? ? ?MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
>> >> + ? ? ? ? ? ? ? ? ? ?USBPHYCTRL_OTGBASE_OFFSET));
> I wonder if the address isn't mapped via ioremap in the driver and the
> cookie saved somewhere? ?(And no, I don't ask you to change that in this
> patch.) ?(If so, it this already problematic aliasing?)
This address is only used once here and it is related to the MX35 USB erratum.
>
>> >> + ? ? ? ?}
>> >> + ? ?}
>> >>
>> > are you sure this compiles when MX35 is not selected ?
>>
>> Including #include <mach/mx35.h> fixes the build for a non- mx35 kernel.
>>
>> Would this be acceptable? If so, I can send v2.
> If you keep the #if defined(CONFIG_ARCH_MX35) and only add the if
> (cpu_is_mx35()) it should work without a new #include.
> Doing that seems a tad cleaner to me.
Ok, will do as suggested in v2.
Thanks,
Fabio Estevam
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-01-19 20:07 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-01-19 15:32 [PATCH] usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time Fabio Estevam
2011-01-19 15:36 ` Eric Bénard
2011-01-19 16:08 ` Fabio Estevam
2011-01-19 17:09 ` Fabio Estevam
2011-01-19 18:54 ` Uwe Kleine-König
2011-01-19 20:07 ` Fabio Estevam
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