| Message ID | 20210122162403.20700-1-a-govindraju@ti.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | mmc: J7200: Add support for higher speed modes in MMCSD subsystems | expand |
On 21:54-20210122, Aswath Govindraju wrote: > The following series of patches > - adds support for HS200 and HS400 speed modes in MMCSD0 subsystem > - adds support for UHS-I speed modes in MMCSD1 subsystem > > Aswath Govindraju (2): > arm64: dts: ti: k3-j7200-main: Add support for HS200 and HS400 modes > in MMCSD0 subsystem > arm64: dts: ti: k3-j7200-main: Add support for UHS-I modes in MMCSD1 > subsystem Just a curious couple of questions: Does squashing both the patches create a problem for understanding or a later bisect? I kind of thought these mostly go hand in hand between the instances, am I mistaken? Are there any otap delay params update needed or the defaults are good to go? Will also help to provide some verification log along with this.
Hi Nishanth, On 22/01/21 11:36 pm, Nishanth Menon wrote: > On 21:54-20210122, Aswath Govindraju wrote: >> The following series of patches >> - adds support for HS200 and HS400 speed modes in MMCSD0 subsystem >> - adds support for UHS-I speed modes in MMCSD1 subsystem >> >> Aswath Govindraju (2): >> arm64: dts: ti: k3-j7200-main: Add support for HS200 and HS400 modes >> in MMCSD0 subsystem >> arm64: dts: ti: k3-j7200-main: Add support for UHS-I modes in MMCSD1 >> subsystem > > > Just a curious couple of questions: > Does squashing both the patches create a problem for understanding or a > later bisect? I kind of thought these mostly go hand in hand between the > instances, am I mistaken? > Yes, they can be squashed. I post a respin doing this. > Are there any otap delay params update needed or the defaults are good > to go? > The otap values are already up-to-date with the data sheet and don't need updation. > Will also help to provide some verification log along with this. > May I know what sort of logs would be best to provide. Would enumeration logs during boot suffice ? Like this, https://pastebin.ubuntu.com/p/v9NRV7GwMw/ ? Thanks, Aswath
On 19:12-20210125, Aswath Govindraju wrote: > Hi Nishanth, > > On 22/01/21 11:36 pm, Nishanth Menon wrote: > > On 21:54-20210122, Aswath Govindraju wrote: > >> The following series of patches > >> - adds support for HS200 and HS400 speed modes in MMCSD0 subsystem > >> - adds support for UHS-I speed modes in MMCSD1 subsystem > >> > >> Aswath Govindraju (2): > >> arm64: dts: ti: k3-j7200-main: Add support for HS200 and HS400 modes > >> in MMCSD0 subsystem > >> arm64: dts: ti: k3-j7200-main: Add support for UHS-I modes in MMCSD1 > >> subsystem > > > > > > Just a curious couple of questions: > > Does squashing both the patches create a problem for understanding or a > > later bisect? I kind of thought these mostly go hand in hand between the > > instances, am I mistaken? > > > > Yes, they can be squashed. I post a respin doing this. Thanks. > > > Are there any otap delay params update needed or the defaults are good > > to go? > > > > The otap values are already up-to-date with the data sheet and don't > need updation. Thanks for the clarification. > > > Will also help to provide some verification log along with this. > > > > May I know what sort of logs would be best to provide. Would enumeration > logs during boot suffice ? > > Like this, > https://pastebin.ubuntu.com/p/v9NRV7GwMw/ ? That just says we detected the cards, no? I thought we had tests around this? Something including /sys/kernel/debug/mmc*/ios Something that demonstrates that this actually runs at the claimed speeds? That would be nice on linux-next, if possible as well..
Hi Nishanth, On 25/01/21 7:21 pm, Nishanth Menon wrote: > On 19:12-20210125, Aswath Govindraju wrote: >> Hi Nishanth, >> >> On 22/01/21 11:36 pm, Nishanth Menon wrote: >>> On 21:54-20210122, Aswath Govindraju wrote: >>>> The following series of patches >>>> - adds support for HS200 and HS400 speed modes in MMCSD0 subsystem >>>> - adds support for UHS-I speed modes in MMCSD1 subsystem >>>> >>>> Aswath Govindraju (2): >>>> arm64: dts: ti: k3-j7200-main: Add support for HS200 and HS400 modes >>>> in MMCSD0 subsystem >>>> arm64: dts: ti: k3-j7200-main: Add support for UHS-I modes in MMCSD1 >>>> subsystem >>> >>> >>> Just a curious couple of questions: >>> Does squashing both the patches create a problem for understanding or a >>> later bisect? I kind of thought these mostly go hand in hand between the >>> instances, am I mistaken? >>> >> >> Yes, they can be squashed. I post a respin doing this. > > Thanks. > >> >>> Are there any otap delay params update needed or the defaults are good >>> to go? >>> >> >> The otap values are already up-to-date with the data sheet and don't >> need updation. > > Thanks for the clarification. > >> >>> Will also help to provide some verification log along with this. >>> >> >> May I know what sort of logs would be best to provide. Would enumeration >> logs during boot suffice ? >> >> Like this, >> https://pastebin.ubuntu.com/p/v9NRV7GwMw/ ? > > That just says we detected the cards, no? > I thought we had tests around this? Something including /sys/kernel/debug/mmc*/ios > > Something that demonstrates that this actually runs at the claimed > speeds? That would be nice on linux-next, if possible as well.. > Yes there are tests which confirm that claimed speeds are functional. I will add them in the respin. Thanks, Aswath
On 19:43-20210125, Aswath Govindraju wrote: > >>> Will also help to provide some verification log along with this. > >>> > >> > >> May I know what sort of logs would be best to provide. Would enumeration > >> logs during boot suffice ? > >> > >> Like this, > >> https://pastebin.ubuntu.com/p/v9NRV7GwMw/ ? > > > > That just says we detected the cards, no? > > I thought we had tests around this? Something including /sys/kernel/debug/mmc*/ios > > > > Something that demonstrates that this actually runs at the claimed > > speeds? That would be nice on linux-next, if possible as well.. > > > > Yes there are tests which confirm that claimed speeds are functional. I > will add them in the respin. Awesome. much appreciated.
The following series of patches - adds support for HS200 and HS400 speed modes in MMCSD0 subsystem - adds support for UHS-I speed modes in MMCSD1 subsystem Aswath Govindraju (2): arm64: dts: ti: k3-j7200-main: Add support for HS200 and HS400 modes in MMCSD0 subsystem arm64: dts: ti: k3-j7200-main: Add support for UHS-I modes in MMCSD1 subsystem arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)