* socfpga: mmc problems
@ 2013-07-03 15:01 Jack Mitchell
2013-07-03 15:09 ` Dinh Nguyen
0 siblings, 1 reply; 5+ messages in thread
From: Jack Mitchell @ 2013-07-03 15:01 UTC (permalink / raw)
To: linux-arm-kernel
Having received one of the new Arrow SoCkit boards at a recent training
day I set about seeing how far mainline was in successfully booting this
board.
As I wanted to boot from mmc, I first checked out linux-next [1] in
order to get the newly merged mmc driver, I then applied the device-tree
enablement series [2] on top before finally attempting to boot. I then
found that the standard socfpga_defconfig didn't enable the MMC drivers,
which I also did (should this be part of the socfpga_defconfig...?).
However, the boot hangs at:
Synopsys Designware Multimedia Card Interface Driver
dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller.
dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host
data width, 1024 deep fifo
To fix this I checked out the diff between the Altera vendor mmc driver
and the mainline driver and found that if I added this small change:
if (of_property_read_u32(dev->of_node, "pwr-en", &pwr_en)) {
dev_info(dev, "couldn't determine pwr-en, assuming pwr-en = 0\n");
pwr_en = 0;
}
/* Set PWREN bit */
mci_writel(host, PWREN, pwr_en);
In the dw_mci_socfpga_priv_init function, the board would boot.
Synopsys Designware Multimedia Card Interface Driver
dwmmc_socfpga ff704000.dwmmc0: couldn't determine pwr-en, assuming
pwr-en = 0
dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller.
dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host
data width, 1024 deep fifo
mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 400000Hz,
actual 400000HZ div = 125)
dwmmc_socfpga ff704000.dwmmc0: 1 slots initialized
dwmmc_socfpga ff704000.dwmmc0: Version ID is 240a
.....
.....
.....
Has this been overlooked, or are there some other changes elsewhere that
I haven't yet come across which addresses this?
Cheers,
[1] fa1383200d289afdff2f5678eb89483daa537465
[2] http://comments.gmane.org/gmane.linux.ports.arm.kernel/243529
--
Jack Mitchell (jack at embed.me.uk)
Embedded Systems Engineer
http://www.embed.me.uk
--
^ permalink raw reply [flat|nested] 5+ messages in thread* socfpga: mmc problems 2013-07-03 15:01 socfpga: mmc problems Jack Mitchell @ 2013-07-03 15:09 ` Dinh Nguyen 2013-07-04 8:31 ` Jack Mitchell 0 siblings, 1 reply; 5+ messages in thread From: Dinh Nguyen @ 2013-07-03 15:09 UTC (permalink / raw) To: linux-arm-kernel Hi Jack, On Wed, 2013-07-03 at 16:01 +0100, Jack Mitchell wrote: > Having received one of the new Arrow SoCkit boards at a recent training > day I set about seeing how far mainline was in successfully booting this > board. > > As I wanted to boot from mmc, I first checked out linux-next [1] in > order to get the newly merged mmc driver, I then applied the device-tree > enablement series [2] on top before finally attempting to boot. I then > found that the standard socfpga_defconfig didn't enable the MMC drivers, > which I also did (should this be part of the socfpga_defconfig...?). I was going to update this when I enable ethernet as well to avoid less churn on the defconfig. > > However, the boot hangs at: > > Synopsys Designware Multimedia Card Interface Driver > dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. > dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host > data width, 1024 deep fifo > > To fix this I checked out the diff between the Altera vendor mmc driver > and the mainline driver and found that if I added this small change: > > > if (of_property_read_u32(dev->of_node, "pwr-en", &pwr_en)) { > dev_info(dev, "couldn't determine pwr-en, assuming pwr-en = 0\n"); > pwr_en = 0; > } > > /* Set PWREN bit */ > mci_writel(host, PWREN, pwr_en); I tested this on my devkit, which was not made by Arrow, but is _almost_ the same. I'll try to see if I can get my hands on an Arrow board to reproduce. > > In the dw_mci_socfpga_priv_init function, the board would boot. > > Synopsys Designware Multimedia Card Interface Driver > dwmmc_socfpga ff704000.dwmmc0: couldn't determine pwr-en, assuming > pwr-en = 0 > dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. > dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host > data width, 1024 deep fifo > mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 400000Hz, > actual 400000HZ div = 125) > dwmmc_socfpga ff704000.dwmmc0: 1 slots initialized > dwmmc_socfpga ff704000.dwmmc0: Version ID is 240a > ..... > ..... > ..... > > > Has this been overlooked, or are there some other changes elsewhere that > I haven't yet come across which addresses this? I'm not aware of any other changes. Dinh > > Cheers, > > [1] fa1383200d289afdff2f5678eb89483daa537465 > [2] http://comments.gmane.org/gmane.linux.ports.arm.kernel/243529 > ^ permalink raw reply [flat|nested] 5+ messages in thread
* socfpga: mmc problems 2013-07-03 15:09 ` Dinh Nguyen @ 2013-07-04 8:31 ` Jack Mitchell 2013-07-08 15:22 ` Dinh Nguyen 0 siblings, 1 reply; 5+ messages in thread From: Jack Mitchell @ 2013-07-04 8:31 UTC (permalink / raw) To: linux-arm-kernel Morning Dinh, On 03/07/13 16:09, Dinh Nguyen wrote: > Hi Jack, > > On Wed, 2013-07-03 at 16:01 +0100, Jack Mitchell wrote: >> Having received one of the new Arrow SoCkit boards at a recent training >> day I set about seeing how far mainline was in successfully booting this >> board. >> >> As I wanted to boot from mmc, I first checked out linux-next [1] in >> order to get the newly merged mmc driver, I then applied the device-tree >> enablement series [2] on top before finally attempting to boot. I then >> found that the standard socfpga_defconfig didn't enable the MMC drivers, >> which I also did (should this be part of the socfpga_defconfig...?). > > I was going to update this when I enable ethernet as well to avoid less > churn on the defconfig. That's great! > >> >> However, the boot hangs at: >> >> Synopsys Designware Multimedia Card Interface Driver >> dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. >> dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host >> data width, 1024 deep fifo >> >> To fix this I checked out the diff between the Altera vendor mmc driver >> and the mainline driver and found that if I added this small change: >> >> >> if (of_property_read_u32(dev->of_node, "pwr-en", &pwr_en)) { >> dev_info(dev, "couldn't determine pwr-en, assuming pwr-en = 0\n"); >> pwr_en = 0; >> } >> >> /* Set PWREN bit */ >> mci_writel(host, PWREN, pwr_en); > > I tested this on my devkit, which was not made by Arrow, but is _almost_ > the same. I'll try to see if I can get my hands on an Arrow board to > reproduce. Now, I think I made a _slight_ mistake, in that I accidentally copied the Altera vendor kernel onto the sdcard instead of the linux-next kernel. Re-testing this morning with a fresh mind, I checked the config again and now I find the Arrow board still won't boot from MMC, even with the above change, with the code hanging at the same place. I know you don't have an Arrow board, but if you have a tree which I could pull from with your amalgamated changes; that would rule out me missing any patches and it actually being a board problem. I can't seem to see if the V8 device tree patches were pulled into anyones tree, otherwise I would just wait till they appeared in 3.11-rc1...? Sorry for the confusion! > >> >> In the dw_mci_socfpga_priv_init function, the board would boot. >> >> Synopsys Designware Multimedia Card Interface Driver >> dwmmc_socfpga ff704000.dwmmc0: couldn't determine pwr-en, assuming >> pwr-en = 0 >> dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. >> dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host >> data width, 1024 deep fifo >> mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 400000Hz, >> actual 400000HZ div = 125) >> dwmmc_socfpga ff704000.dwmmc0: 1 slots initialized >> dwmmc_socfpga ff704000.dwmmc0: Version ID is 240a >> ..... >> ..... >> ..... >> >> >> Has this been overlooked, or are there some other changes elsewhere that >> I haven't yet come across which addresses this? > > I'm not aware of any other changes. > > Dinh >> >> Cheers, >> >> [1] fa1383200d289afdff2f5678eb89483daa537465 >> [2] http://comments.gmane.org/gmane.linux.ports.arm.kernel/243529 >> > > > -- Jack Mitchell (jack at embed.me.uk) Embedded Systems Engineer http://www.embed.me.uk -- ^ permalink raw reply [flat|nested] 5+ messages in thread
* socfpga: mmc problems 2013-07-04 8:31 ` Jack Mitchell @ 2013-07-08 15:22 ` Dinh Nguyen 2013-07-08 16:00 ` Jack Mitchell 0 siblings, 1 reply; 5+ messages in thread From: Dinh Nguyen @ 2013-07-08 15:22 UTC (permalink / raw) To: linux-arm-kernel Hi Jack, On Thu, 2013-07-04 at 09:31 +0100, Jack Mitchell wrote: > Morning Dinh, > > On 03/07/13 16:09, Dinh Nguyen wrote: > > Hi Jack, > > > > On Wed, 2013-07-03 at 16:01 +0100, Jack Mitchell wrote: > >> Having received one of the new Arrow SoCkit boards at a recent training > >> day I set about seeing how far mainline was in successfully booting this > >> board. > >> > >> As I wanted to boot from mmc, I first checked out linux-next [1] in > >> order to get the newly merged mmc driver, I then applied the device-tree > >> enablement series [2] on top before finally attempting to boot. I then > >> found that the standard socfpga_defconfig didn't enable the MMC drivers, > >> which I also did (should this be part of the socfpga_defconfig...?). > > > > I was going to update this when I enable ethernet as well to avoid less > > churn on the defconfig. > > That's great! > > > > >> > >> However, the boot hangs at: > >> > >> Synopsys Designware Multimedia Card Interface Driver > >> dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. > >> dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host > >> data width, 1024 deep fifo > >> > >> To fix this I checked out the diff between the Altera vendor mmc driver > >> and the mainline driver and found that if I added this small change: > >> > >> > >> if (of_property_read_u32(dev->of_node, "pwr-en", &pwr_en)) { > >> dev_info(dev, "couldn't determine pwr-en, assuming pwr-en = 0\n"); > >> pwr_en = 0; > >> } > >> > >> /* Set PWREN bit */ > >> mci_writel(host, PWREN, pwr_en); > > > > I tested this on my devkit, which was not made by Arrow, but is _almost_ > > the same. I'll try to see if I can get my hands on an Arrow board to > > reproduce. > > Now, I think I made a _slight_ mistake, in that I accidentally copied > the Altera vendor kernel onto the sdcard instead of the linux-next > kernel. Re-testing this morning with a fresh mind, I checked the config > again and now I find the Arrow board still won't boot from MMC, even > with the above change, with the code hanging at the same place. > > I know you don't have an Arrow board, but if you have a tree which I > could pull from with your amalgamated changes; that would rule out me > missing any patches and it actually being a board problem. I can't seem > to see if the V8 device tree patches were pulled into anyones tree, > otherwise I would just wait till they appeared in 3.11-rc1...? Unfortunately, the device tree bindings for the SD/MMC did not make it into the arm-soc tree for 3.11, only the sd/mmc platform driver. Will try for 3.12. I'm sure you have seen git.rocketboards.org? Dinh > > Sorry for the confusion! > > > > >> > >> In the dw_mci_socfpga_priv_init function, the board would boot. > >> > >> Synopsys Designware Multimedia Card Interface Driver > >> dwmmc_socfpga ff704000.dwmmc0: couldn't determine pwr-en, assuming > >> pwr-en = 0 > >> dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. > >> dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host > >> data width, 1024 deep fifo > >> mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 400000Hz, > >> actual 400000HZ div = 125) > >> dwmmc_socfpga ff704000.dwmmc0: 1 slots initialized > >> dwmmc_socfpga ff704000.dwmmc0: Version ID is 240a > >> ..... > >> ..... > >> ..... > >> > >> > >> Has this been overlooked, or are there some other changes elsewhere that > >> I haven't yet come across which addresses this? > > > > I'm not aware of any other changes. > > > > Dinh > >> > >> Cheers, > >> > >> [1] fa1383200d289afdff2f5678eb89483daa537465 > >> [2] http://comments.gmane.org/gmane.linux.ports.arm.kernel/243529 > >> > > > > > > > > ^ permalink raw reply [flat|nested] 5+ messages in thread
* socfpga: mmc problems 2013-07-08 15:22 ` Dinh Nguyen @ 2013-07-08 16:00 ` Jack Mitchell 0 siblings, 0 replies; 5+ messages in thread From: Jack Mitchell @ 2013-07-08 16:00 UTC (permalink / raw) To: linux-arm-kernel Hi Dinh, On 08/07/13 16:22, Dinh Nguyen wrote: > Hi Jack, > > On Thu, 2013-07-04 at 09:31 +0100, Jack Mitchell wrote: >> Morning Dinh, >> >> On 03/07/13 16:09, Dinh Nguyen wrote: >>> Hi Jack, >>> >>> On Wed, 2013-07-03 at 16:01 +0100, Jack Mitchell wrote: >>>> Having received one of the new Arrow SoCkit boards at a recent training >>>> day I set about seeing how far mainline was in successfully booting this >>>> board. >>>> >>>> As I wanted to boot from mmc, I first checked out linux-next [1] in >>>> order to get the newly merged mmc driver, I then applied the device-tree >>>> enablement series [2] on top before finally attempting to boot. I then >>>> found that the standard socfpga_defconfig didn't enable the MMC drivers, >>>> which I also did (should this be part of the socfpga_defconfig...?). >>> >>> I was going to update this when I enable ethernet as well to avoid less >>> churn on the defconfig. >> >> That's great! >> >>> >>>> >>>> However, the boot hangs at: >>>> >>>> Synopsys Designware Multimedia Card Interface Driver >>>> dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. >>>> dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host >>>> data width, 1024 deep fifo >>>> >>>> To fix this I checked out the diff between the Altera vendor mmc driver >>>> and the mainline driver and found that if I added this small change: >>>> >>>> >>>> if (of_property_read_u32(dev->of_node, "pwr-en", &pwr_en)) { >>>> dev_info(dev, "couldn't determine pwr-en, assuming pwr-en = 0\n"); >>>> pwr_en = 0; >>>> } >>>> >>>> /* Set PWREN bit */ >>>> mci_writel(host, PWREN, pwr_en); >>> >>> I tested this on my devkit, which was not made by Arrow, but is _almost_ >>> the same. I'll try to see if I can get my hands on an Arrow board to >>> reproduce. >> >> Now, I think I made a _slight_ mistake, in that I accidentally copied >> the Altera vendor kernel onto the sdcard instead of the linux-next >> kernel. Re-testing this morning with a fresh mind, I checked the config >> again and now I find the Arrow board still won't boot from MMC, even >> with the above change, with the code hanging at the same place. >> >> I know you don't have an Arrow board, but if you have a tree which I >> could pull from with your amalgamated changes; that would rule out me >> missing any patches and it actually being a board problem. I can't seem >> to see if the V8 device tree patches were pulled into anyones tree, >> otherwise I would just wait till they appeared in 3.11-rc1...? > > Unfortunately, the device tree bindings for the SD/MMC did not make it > into the arm-soc tree for 3.11, only the sd/mmc platform driver. Will > try for 3.12. > > I'm sure you have seen git.rocketboards.org? Yes, I have the 3.9 rocketboards kernel compiling and working so I'm not stuck; just interested in keeping up to date with how mainline is progressing and helping with testing (and nit picking!). Cheers, Jack. > > Dinh >> >> Sorry for the confusion! >> >>> >>>> >>>> In the dw_mci_socfpga_priv_init function, the board would boot. >>>> >>>> Synopsys Designware Multimedia Card Interface Driver >>>> dwmmc_socfpga ff704000.dwmmc0: couldn't determine pwr-en, assuming >>>> pwr-en = 0 >>>> dwmmc_socfpga ff704000.dwmmc0: Using internal DMA controller. >>>> dwmmc_socfpga ff704000.dwmmc0: DW MMC controller at irq 171, 32 bit host >>>> data width, 1024 deep fifo >>>> mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 400000Hz, >>>> actual 400000HZ div = 125) >>>> dwmmc_socfpga ff704000.dwmmc0: 1 slots initialized >>>> dwmmc_socfpga ff704000.dwmmc0: Version ID is 240a >>>> ..... >>>> ..... >>>> ..... >>>> >>>> >>>> Has this been overlooked, or are there some other changes elsewhere that >>>> I haven't yet come across which addresses this? >>> >>> I'm not aware of any other changes. >>> >>> Dinh >>>> >>>> Cheers, >>>> >>>> [1] fa1383200d289afdff2f5678eb89483daa537465 >>>> [2] http://comments.gmane.org/gmane.linux.ports.arm.kernel/243529 >>>> >>> >>> >>> >> >> > > > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- Jack Mitchell (jack at embed.me.uk) Embedded Systems Engineer http://www.embed.me.uk -- ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-07-08 16:00 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-07-03 15:01 socfpga: mmc problems Jack Mitchell 2013-07-03 15:09 ` Dinh Nguyen 2013-07-04 8:31 ` Jack Mitchell 2013-07-08 15:22 ` Dinh Nguyen 2013-07-08 16:00 ` Jack Mitchell
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