Hi Jackey, no, the cw1200 chip is a SDIO < 2.0 device.
Kind regards, Johan 2012/12/14 Shen, Jackey <[email protected]>: > Hi Johan, > > Is the SDIO WLAN chip (cw1200), you mentioned, SDIO 3.0 device with SDIO > interface? > > Thanks, > Jackey > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Johan Rudholm > Sent: Saturday, December 08, 2012 12:20 AM > To: [email protected]; Chris Ball > Cc: Per Forlin; Ulf Hansson; Fredrik Soderstedt; Kevin Liu; Philip Rakity; > Daniel Drake; Aaron; Subhash Jadavani; Johan Rudholm > Subject: [PATCH 0/3] Signal voltage switch procedure for UHS mode > > This patch series attempts to make the 1.8V signal voltage switch required > for UHS mode work according to the SD specification. > > These patches have been tested with a couple of UHS SD cards, one of which > sometimes requires up to five power cycles before it accepts the signal > voltage switch. The patches have also been tested with various other SD > cards, as well as one SDIO WLAN chip (cw1200) to check for regressions. The > patches have also been tested with CONFIG_MMC_CLKGATE. > > As usual, I'd be very grateful if someone could help me test this patch with > an UHS SDIO card and perhaps also a combo card (which does seem to be rare > these days?)? > > This patch series is based on previous RFC/patch: > > [RFC/PATCH v2] mmc: core: Fixup signal voltage switch > > Changelog: > v2 -> This patch series > - Removed the extra argument to the card_busy host_ops function > - Added mmc_power_cycle > - Some clarifying comments > v1 -> v2 > - Removed reset of signal voltage in mmc_sd_get_cid, since > "mmc: core: reset signal voltage on power up" > previous two patches -> v1: > - Keep calls to mmc_host_clk_hold / mmc_host_clk_release > - Add retry-loop / power cycle in sdio.c > - Fall back to 3.3 V if the switch repeatedly fails > - Add an extra argument to the card_busy host_ops function, > which can be used to signal polling use of the function > > Johan Rudholm (3): > mmc: core: Add mmc_power_cycle > mmc: core: Add card_busy to host_ops > mmc: core: Fixup signal voltage switch > > drivers/mmc/core/core.c | 43 +++++++++++++++++++++++++++++++++++++++++++ > drivers/mmc/core/core.h | 1 + > drivers/mmc/core/sd.c | 26 +++++++++++++++++++++----- > drivers/mmc/core/sdio.c | 25 +++++++++++++++++++++++-- > include/linux/mmc/host.h | 3 +++ > 5 files changed, 91 insertions(+), 7 deletions(-) > > -- > 1.7.10 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the > body of a message to [email protected] More majordomo info at > http://vger.kernel.org/majordomo-info.html > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
