* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-04-01 12:57 Hans J. Koch 2010-04-01 13:20 ` Daniel Mack 0 siblings, 1 reply; 18+ messages in thread From: Hans J. Koch @ 2010-04-01 12:57 UTC (permalink / raw) To: linux-arm-kernel I need to get the MMC interface of an i.MX35 to work in the near future. To avoid duplicate work, I'd like to know if anybody already started work on this. Any hints? Thanks, Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-01 12:57 Is anyone working on SD/MMC driver for i.MX35 ? Hans J. Koch @ 2010-04-01 13:20 ` Daniel Mack 2010-04-01 13:22 ` Hans J. Koch 0 siblings, 1 reply; 18+ messages in thread From: Daniel Mack @ 2010-04-01 13:20 UTC (permalink / raw) To: linux-arm-kernel On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > I need to get the MMC interface of an i.MX35 to work in the near future. > To avoid duplicate work, I'd like to know if anybody already started > work on this. Is the controller very different from the one which is already supported for MX31? Daniel ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-01 13:20 ` Daniel Mack @ 2010-04-01 13:22 ` Hans J. Koch 2010-04-02 1:29 ` Wolfram Sang 0 siblings, 1 reply; 18+ messages in thread From: Hans J. Koch @ 2010-04-01 13:22 UTC (permalink / raw) To: linux-arm-kernel On Thu, Apr 01, 2010 at 03:20:17PM +0200, Daniel Mack wrote: > On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > > I need to get the MMC interface of an i.MX35 to work in the near future. > > To avoid duplicate work, I'd like to know if anybody already started > > work on this. > > Is the controller very different from the one which is already supported > for MX31? Yep. Completely different beast. Unfortunately. Thanks, Hans > > Daniel ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-01 13:22 ` Hans J. Koch @ 2010-04-02 1:29 ` Wolfram Sang 0 siblings, 0 replies; 18+ messages in thread From: Wolfram Sang @ 2010-04-02 1:29 UTC (permalink / raw) To: Hans J. Koch; +Cc: Daniel Mack, linux-arm-kernel, John Ogness, linux-mmc [-- Attachment #1: Type: text/plain, Size: 1443 bytes --] On Thu, Apr 01, 2010 at 03:22:35PM +0200, Hans J. Koch wrote: > On Thu, Apr 01, 2010 at 03:20:17PM +0200, Daniel Mack wrote: > > On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > > > I need to get the MMC interface of an i.MX35 to work in the near future. > > > To avoid duplicate work, I'd like to know if anybody already started > > > work on this. > > > > Is the controller very different from the one which is already supported > > for MX31? > > Yep. Completely different beast. Unfortunately. (CCing linux-mmc) And it is a mess, really :( The kernel already has an esdhc-driver (and Anton already worked around a number of hardware-bugs), but is tied into an of-driver because the core was also used on PowerPC. There, it utilizes a 32-bit-byte-swaper which is not needed on ARM. So, one has to rip all that out, generalize the sdhc-platform support (possibly also abstract the quirk support) and make sure nothing breaks. I started and got MMC working, but it is by far not mainline quality (and maybe bitrotten by now). Check the sdhci-pltfm branch at http://git.pengutronix.de/?p=wsa/linux-2.6.git;a=summary You see, there is still some of_* left in the platform-part. Maybe you can push this a bit further, Wolfram -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 197 bytes --] ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-04-02 1:29 ` Wolfram Sang 0 siblings, 0 replies; 18+ messages in thread From: Wolfram Sang @ 2010-04-02 1:29 UTC (permalink / raw) To: linux-arm-kernel On Thu, Apr 01, 2010 at 03:22:35PM +0200, Hans J. Koch wrote: > On Thu, Apr 01, 2010 at 03:20:17PM +0200, Daniel Mack wrote: > > On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > > > I need to get the MMC interface of an i.MX35 to work in the near future. > > > To avoid duplicate work, I'd like to know if anybody already started > > > work on this. > > > > Is the controller very different from the one which is already supported > > for MX31? > > Yep. Completely different beast. Unfortunately. (CCing linux-mmc) And it is a mess, really :( The kernel already has an esdhc-driver (and Anton already worked around a number of hardware-bugs), but is tied into an of-driver because the core was also used on PowerPC. There, it utilizes a 32-bit-byte-swaper which is not needed on ARM. So, one has to rip all that out, generalize the sdhc-platform support (possibly also abstract the quirk support) and make sure nothing breaks. I started and got MMC working, but it is by far not mainline quality (and maybe bitrotten by now). Check the sdhci-pltfm branch at http://git.pengutronix.de/?p=wsa/linux-2.6.git;a=summary You see, there is still some of_* left in the platform-part. Maybe you can push this a bit further, Wolfram -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100402/af49aabd/attachment.sig> ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-02 1:29 ` Wolfram Sang @ 2010-04-05 18:21 ` Anton Vorontsov -1 siblings, 0 replies; 18+ messages in thread From: Anton Vorontsov @ 2010-04-05 18:21 UTC (permalink / raw) To: Wolfram Sang Cc: Hans J. Koch, linux-mmc, linux-arm-kernel, Daniel Mack, John Ogness On Fri, Apr 02, 2010 at 03:29:32AM +0200, Wolfram Sang wrote: > On Thu, Apr 01, 2010 at 03:22:35PM +0200, Hans J. Koch wrote: > > On Thu, Apr 01, 2010 at 03:20:17PM +0200, Daniel Mack wrote: > > > On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > > > > I need to get the MMC interface of an i.MX35 to work in the near future. > > > > To avoid duplicate work, I'd like to know if anybody already started > > > > work on this. > > > > > > Is the controller very different from the one which is already supported > > > for MX31? > > > > Yep. Completely different beast. Unfortunately. > > (CCing linux-mmc) > > And it is a mess, really :( > > The kernel already has an esdhc-driver (and Anton already worked around a > number of hardware-bugs), but is tied into an of-driver because the core was > also used on PowerPC. There, it utilizes a 32-bit-byte-swaper which is not > needed on ARM. So, one has to rip all that out, generalize the sdhc-platform > support (possibly also abstract the quirk support) and make sure nothing > breaks. FYI, there is sdhci-pltfm driver, + some patches to add quirks support: http://lkml.org/lkml/2010/3/16/337 These patches are already in the -mm tree. Thanks, -- Anton Vorontsov email: cbouatmailru@gmail.com irc://irc.freenode.net/bd2 ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-04-05 18:21 ` Anton Vorontsov 0 siblings, 0 replies; 18+ messages in thread From: Anton Vorontsov @ 2010-04-05 18:21 UTC (permalink / raw) To: linux-arm-kernel On Fri, Apr 02, 2010 at 03:29:32AM +0200, Wolfram Sang wrote: > On Thu, Apr 01, 2010 at 03:22:35PM +0200, Hans J. Koch wrote: > > On Thu, Apr 01, 2010 at 03:20:17PM +0200, Daniel Mack wrote: > > > On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > > > > I need to get the MMC interface of an i.MX35 to work in the near future. > > > > To avoid duplicate work, I'd like to know if anybody already started > > > > work on this. > > > > > > Is the controller very different from the one which is already supported > > > for MX31? > > > > Yep. Completely different beast. Unfortunately. > > (CCing linux-mmc) > > And it is a mess, really :( > > The kernel already has an esdhc-driver (and Anton already worked around a > number of hardware-bugs), but is tied into an of-driver because the core was > also used on PowerPC. There, it utilizes a 32-bit-byte-swaper which is not > needed on ARM. So, one has to rip all that out, generalize the sdhc-platform > support (possibly also abstract the quirk support) and make sure nothing > breaks. FYI, there is sdhci-pltfm driver, + some patches to add quirks support: http://lkml.org/lkml/2010/3/16/337 These patches are already in the -mm tree. Thanks, -- Anton Vorontsov email: cbouatmailru at gmail.com irc://irc.freenode.net/bd2 ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-05 18:21 ` Anton Vorontsov @ 2010-04-06 9:12 ` Hans J. Koch -1 siblings, 0 replies; 18+ messages in thread From: Hans J. Koch @ 2010-04-06 9:12 UTC (permalink / raw) To: Anton Vorontsov Cc: Wolfram Sang, Hans J. Koch, linux-mmc, linux-arm-kernel, Daniel Mack, John Ogness On Mon, Apr 05, 2010 at 10:21:03PM +0400, Anton Vorontsov wrote: > On Fri, Apr 02, 2010 at 03:29:32AM +0200, Wolfram Sang wrote: > > On Thu, Apr 01, 2010 at 03:22:35PM +0200, Hans J. Koch wrote: > > > On Thu, Apr 01, 2010 at 03:20:17PM +0200, Daniel Mack wrote: > > > > On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > > > > > I need to get the MMC interface of an i.MX35 to work in the near future. > > > > > To avoid duplicate work, I'd like to know if anybody already started > > > > > work on this. > > > > > > > > Is the controller very different from the one which is already supported > > > > for MX31? > > > > > > Yep. Completely different beast. Unfortunately. > > > > (CCing linux-mmc) > > > > And it is a mess, really :( > > > > The kernel already has an esdhc-driver (and Anton already worked around a > > number of hardware-bugs), but is tied into an of-driver because the core was > > also used on PowerPC. There, it utilizes a 32-bit-byte-swaper which is not > > needed on ARM. So, one has to rip all that out, generalize the sdhc-platform > > support (possibly also abstract the quirk support) and make sure nothing > > breaks. > > FYI, there is sdhci-pltfm driver, + some patches to add > quirks support: > > http://lkml.org/lkml/2010/3/16/337 > > These patches are already in the -mm tree. Thanks a lot for all your hints! Will have a deeper look at that. Thanks, Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-04-06 9:12 ` Hans J. Koch 0 siblings, 0 replies; 18+ messages in thread From: Hans J. Koch @ 2010-04-06 9:12 UTC (permalink / raw) To: linux-arm-kernel On Mon, Apr 05, 2010 at 10:21:03PM +0400, Anton Vorontsov wrote: > On Fri, Apr 02, 2010 at 03:29:32AM +0200, Wolfram Sang wrote: > > On Thu, Apr 01, 2010 at 03:22:35PM +0200, Hans J. Koch wrote: > > > On Thu, Apr 01, 2010 at 03:20:17PM +0200, Daniel Mack wrote: > > > > On Thu, Apr 01, 2010 at 02:57:40PM +0200, Hans J. Koch wrote: > > > > > I need to get the MMC interface of an i.MX35 to work in the near future. > > > > > To avoid duplicate work, I'd like to know if anybody already started > > > > > work on this. > > > > > > > > Is the controller very different from the one which is already supported > > > > for MX31? > > > > > > Yep. Completely different beast. Unfortunately. > > > > (CCing linux-mmc) > > > > And it is a mess, really :( > > > > The kernel already has an esdhc-driver (and Anton already worked around a > > number of hardware-bugs), but is tied into an of-driver because the core was > > also used on PowerPC. There, it utilizes a 32-bit-byte-swaper which is not > > needed on ARM. So, one has to rip all that out, generalize the sdhc-platform > > support (possibly also abstract the quirk support) and make sure nothing > > breaks. > > FYI, there is sdhci-pltfm driver, + some patches to add > quirks support: > > http://lkml.org/lkml/2010/3/16/337 > > These patches are already in the -mm tree. Thanks a lot for all your hints! Will have a deeper look at that. Thanks, Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-06 9:12 ` Hans J. Koch @ 2010-04-27 11:04 ` Wolfram Sang -1 siblings, 0 replies; 18+ messages in thread From: Wolfram Sang @ 2010-04-27 11:04 UTC (permalink / raw) To: Hans J. Koch Cc: Anton Vorontsov, linux-mmc, linux-arm-kernel, Daniel Mack, John Ogness [-- Attachment #1: Type: text/plain, Size: 244 bytes --] > Thanks a lot for all your hints! Will have a deeper look at that. Any success? -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 197 bytes --] ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-04-27 11:04 ` Wolfram Sang 0 siblings, 0 replies; 18+ messages in thread From: Wolfram Sang @ 2010-04-27 11:04 UTC (permalink / raw) To: linux-arm-kernel > Thanks a lot for all your hints! Will have a deeper look at that. Any success? -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100427/c6539877/attachment.sig> ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-27 11:04 ` Wolfram Sang @ 2010-04-28 13:15 ` Hans J. Koch -1 siblings, 0 replies; 18+ messages in thread From: Hans J. Koch @ 2010-04-28 13:15 UTC (permalink / raw) To: Wolfram Sang Cc: Hans J. Koch, John Ogness, linux-mmc, Daniel Mack, linux-arm-kernel, Anton Vorontsov On Tue, Apr 27, 2010 at 01:04:39PM +0200, Wolfram Sang wrote: > > Thanks a lot for all your hints! Will have a deeper look at that. > > Any success? I was delayed by some other project, don't know when I'll have something. Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-04-28 13:15 ` Hans J. Koch 0 siblings, 0 replies; 18+ messages in thread From: Hans J. Koch @ 2010-04-28 13:15 UTC (permalink / raw) To: linux-arm-kernel On Tue, Apr 27, 2010 at 01:04:39PM +0200, Wolfram Sang wrote: > > Thanks a lot for all your hints! Will have a deeper look at that. > > Any success? I was delayed by some other project, don't know when I'll have something. Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: Is anyone working on SD/MMC driver for i.MX35 ? 2010-04-28 13:15 ` Hans J. Koch @ 2010-08-03 14:31 ` Wolfram Sang -1 siblings, 0 replies; 18+ messages in thread From: Wolfram Sang @ 2010-08-03 14:31 UTC (permalink / raw) To: Hans J. Koch Cc: John Ogness, linux-mmc, Daniel Mack, linux-arm-kernel, Anton Vorontsov [-- Attachment #1: Type: text/plain, Size: 399 bytes --] > > > Thanks a lot for all your hints! Will have a deeper look at that. > > > > Any success? > > I was delayed by some other project, don't know when I'll have something. Meanwhile? I might need to touch it in the future again... -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-08-03 14:31 ` Wolfram Sang 0 siblings, 0 replies; 18+ messages in thread From: Wolfram Sang @ 2010-08-03 14:31 UTC (permalink / raw) To: linux-arm-kernel > > > Thanks a lot for all your hints! Will have a deeper look at that. > > > > Any success? > > I was delayed by some other project, don't know when I'll have something. Meanwhile? I might need to touch it in the future again... -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 198 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100803/23e49afd/attachment.sig> ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: Is anyone working on SD/MMC driver for i.MX35 ? 2010-08-03 14:31 ` Wolfram Sang @ 2010-08-05 9:44 ` Hans J. Koch -1 siblings, 0 replies; 18+ messages in thread From: Hans J. Koch @ 2010-08-05 9:44 UTC (permalink / raw) To: Wolfram Sang Cc: Hans J. Koch, Anton Vorontsov, linux-mmc, linux-arm-kernel, Daniel Mack, John Ogness On Tue, Aug 03, 2010 at 04:31:26PM +0200, Wolfram Sang wrote: > > > > Thanks a lot for all your hints! Will have a deeper look at that. > > > > > > Any success? > > > > I was delayed by some other project, don't know when I'll have something. > > Meanwhile? I might need to touch it in the future again... No, sorry. I probably won't work on that anymore. Thanks, Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-08-05 9:44 ` Hans J. Koch 0 siblings, 0 replies; 18+ messages in thread From: Hans J. Koch @ 2010-08-05 9:44 UTC (permalink / raw) To: linux-arm-kernel On Tue, Aug 03, 2010 at 04:31:26PM +0200, Wolfram Sang wrote: > > > > Thanks a lot for all your hints! Will have a deeper look at that. > > > > > > Any success? > > > > I was delayed by some other project, don't know when I'll have something. > > Meanwhile? I might need to touch it in the future again... No, sorry. I probably won't work on that anymore. Thanks, Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
* Is anyone working on SD/MMC driver for i.MX35 ? @ 2010-04-01 12:52 Hans J. Koch 0 siblings, 0 replies; 18+ messages in thread From: Hans J. Koch @ 2010-04-01 12:52 UTC (permalink / raw) To: linux-mmc; +Cc: arm-kernel, John Ogness I need to get the MMC interface of an i.MX35 to work in the near future. To avoid duplicate work, I'd like to know if anybody already started work on this. Any hints? Thanks, Hans ^ permalink raw reply [flat|nested] 18+ messages in thread
end of thread, other threads:[~2010-08-05 9:44 UTC | newest] Thread overview: 18+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2010-04-01 12:57 Is anyone working on SD/MMC driver for i.MX35 ? Hans J. Koch 2010-04-01 13:20 ` Daniel Mack 2010-04-01 13:22 ` Hans J. Koch 2010-04-02 1:29 ` Wolfram Sang 2010-04-02 1:29 ` Wolfram Sang 2010-04-05 18:21 ` Anton Vorontsov 2010-04-05 18:21 ` Anton Vorontsov 2010-04-06 9:12 ` Hans J. Koch 2010-04-06 9:12 ` Hans J. Koch 2010-04-27 11:04 ` Wolfram Sang 2010-04-27 11:04 ` Wolfram Sang 2010-04-28 13:15 ` Hans J. Koch 2010-04-28 13:15 ` Hans J. Koch 2010-08-03 14:31 ` Wolfram Sang 2010-08-03 14:31 ` Wolfram Sang 2010-08-05 9:44 ` Hans J. Koch 2010-08-05 9:44 ` Hans J. Koch -- strict thread matches above, loose matches on Subject: below -- 2010-04-01 12:52 Hans J. Koch
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