Re: [PATCH 0/4] omap legacy full speed usb cleanup for v3.6
* Paul Walmsley [120524 23:05]: > On Mon, 21 May 2012, Tony Lindgren wrote: > > > This series removes the old legacy fulls speed support for > > omap2 as it's pretty much only used for omap1 only. > > > > For omap2, only n8x0 seems to have active development, and > > that has the external high speed tusb chip instead. > > Just FYI, full speed host USB exists on OMAP4. It's in section 23.13 of > the TRM and we have a hwmod for it. No idea if anyone is actually using > it. Interesting, so it's back on omap4 for some legacy compability reasons i guess. It's not mentioned for omap3 at all, but maybe it's lurking around there somewhere too. Looking at the omap4 TRM, looks like there are two instances of OHCI: The HS OHCI/EHCI controller, and the legacy FS OHCI only controller. The legacy one is using separate transceiver pins (usbc1_*) from the HS OHCI/EHCI controller pins (usbb[12]_*). As the OHCI registers are standard, I'd assume it would be possible to make the FS USB instance to work with the mach-omap2/usb-host.c and drivers/usb/host/ohci-omap3.c driver. So it should still be OK to remove the code in this series. I doubt that anybody would want to use the legacy FS OHCI controller instead of the HS OHCI/EHCI controller though.. If somebody is actually using the legacy controller at usbc1_* pins, please respond. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 0/4] omap legacy full speed usb cleanup for v3.6
On Mon, 21 May 2012, Tony Lindgren wrote: > This series removes the old legacy fulls speed support for > omap2 as it's pretty much only used for omap1 only. > > For omap2, only n8x0 seems to have active development, and > that has the external high speed tusb chip instead. Just FYI, full speed host USB exists on OMAP4. It's in section 23.13 of the TRM and we have a hwmod for it. No idea if anyone is actually using it. - Paul -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH 0/4] omap legacy full speed usb cleanup for v3.6
Hi all, This series removes the old legacy fulls speed support for omap2 as it's pretty much only used for omap1 only. For omap2, only n8x0 seems to have active development, and that has the external high speed tusb chip instead. This allows removes the last user of omap_read/write for omap2+, removes cpu_is_omapxxx usage under drivers/usb except for omap1, simplifies the plat/usb.h allowing further clean-up, simplifies the DMA engine conversion by one driver, and so on. The patches are against today's linux next branch. Regards, Tony --- Tony Lindgren (4): ARM: OMAP3: There is no FS USB controller on omap3 ARM: OMAP2: Remove legacy USB FS support ARM: OMAP: Make FS USB omap1 only USB: Remove omap2 support from omap_udc.c arch/arm/mach-omap1/board-ams-delta.c |2 arch/arm/mach-omap1/board-generic.c |4 arch/arm/mach-omap1/board-h2.c |2 arch/arm/mach-omap1/board-h3.c |2 arch/arm/mach-omap1/board-htcherald.c |2 arch/arm/mach-omap1/board-innovator.c |2 arch/arm/mach-omap1/board-nokia770.c|2 arch/arm/mach-omap1/board-osk.c |2 arch/arm/mach-omap1/board-palmte.c |2 arch/arm/mach-omap1/board-palmtt.c |2 arch/arm/mach-omap1/board-palmz71.c |2 arch/arm/mach-omap1/board-sx1.c |2 arch/arm/mach-omap1/board-voiceblue.c |3 arch/arm/mach-omap1/clock_data.c|3 arch/arm/mach-omap1/include/mach/usb.h | 165 ++ arch/arm/mach-omap1/usb.c | 116 ++ arch/arm/mach-omap2/Kconfig |3 arch/arm/mach-omap2/Makefile|3 arch/arm/mach-omap2/board-2430sdp.c | 11 - arch/arm/mach-omap2/board-apollon.c | 18 -- arch/arm/mach-omap2/board-h4.c | 13 - arch/arm/mach-omap2/usb-fs.c| 359 --- arch/arm/plat-omap/Makefile |2 arch/arm/plat-omap/include/plat/board.h | 38 --- arch/arm/plat-omap/include/plat/usb.h | 196 - arch/arm/plat-omap/usb.c| 145 - drivers/usb/gadget/Kconfig |2 drivers/usb/gadget/omap_udc.c | 116 ++ drivers/usb/host/Kconfig|2 drivers/usb/host/ohci-omap.c|7 - drivers/usb/otg/isp1301_omap.c |2 31 files changed, 333 insertions(+), 897 deletions(-) create mode 100644 arch/arm/mach-omap1/include/mach/usb.h delete mode 100644 arch/arm/mach-omap2/usb-fs.c delete mode 100644 arch/arm/plat-omap/usb.c -- Signature -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
