| Message ID | 20250222-fml13v01_emmc_speed-v2-1-3ffc5b1f5663@hotmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | riscv: dts: starfive: jh7110: increase eMMC bus speed | expand |
| Context | Check | Description |
|---|---|---|
| bjorn/pre-ci_am | fail | Failed to apply series |
Hi, Let's continue our discussion here. Will EMMC speed increase if we only apply patch 1? Also, about your clock-rates modification in patch 2, I CCed William Qiu so that we might get some more information about this. Besides I've done a speed test with unlimitied clock-rates and an early state of SOC clock driver on visionfive 2 when I was working on AXP15060 driver before: http://forum.rvspace.org/t/question-about-sd-card-speed/1741/21 Best regards, Shengyu 在 2025/2/22 21:34, Maud Spierings via B4 Relay 写道: > From: Maud Spierings <maud_spierings@hotmail.com> > > This sdio interface is capable of more than 100 MHz as already indicated > by the cap_hs200-1_8v attribute. Increase the max-frequency to 200 MHz > so users of this dtsi can increase their SDIO bus speed. > > Signed-off-by: Maud Spierings <maud_spierings@hotmail.com> > --- > arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi > index dd2eefc295e5c8b568a02104ec2189e66b378904..19ca8dc24617c2ad565a4a9b2d9af9bd9491f22e 100644 > --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi > +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi > @@ -258,7 +258,7 @@ &i2c6 { > }; > > &mmc0 { > - max-frequency = <100000000>; > + max-frequency = <200000000>; > assigned-clocks = <&syscrg JH7110_SYSCLK_SDIO0_SDCARD>; > assigned-clock-rates = <50000000>; > bus-width = <8>; >
Sry I forgot to cc actually. 在 2025/2/22 22:17, Shengyu Qu 写道: > Hi, > > Let's continue our discussion here. > > Will EMMC speed increase if we only apply patch 1? > > Also, about your clock-rates modification in patch 2, I CCed William Qiu > so that we might get some more information about this. > > Besides I've done a speed test with unlimitied clock-rates and an early > state of SOC clock driver on visionfive 2 when I was working on AXP15060 > driver before: http://forum.rvspace.org/t/question-about-sd-card- > speed/1741/21 > > Best regards, > Shengyu > > 在 2025/2/22 21:34, Maud Spierings via B4 Relay 写道: >> From: Maud Spierings <maud_spierings@hotmail.com> >> >> This sdio interface is capable of more than 100 MHz as already indicated >> by the cap_hs200-1_8v attribute. Increase the max-frequency to 200 MHz >> so users of this dtsi can increase their SDIO bus speed. >> >> Signed-off-by: Maud Spierings <maud_spierings@hotmail.com> >> --- >> arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/ >> riscv/boot/dts/starfive/jh7110-common.dtsi >> index >> dd2eefc295e5c8b568a02104ec2189e66b378904..19ca8dc24617c2ad565a4a9b2d9af9bd9491f22e 100644 >> --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi >> +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi >> @@ -258,7 +258,7 @@ &i2c6 { >> }; >> &mmc0 { >> - max-frequency = <100000000>; >> + max-frequency = <200000000>; >> assigned-clocks = <&syscrg JH7110_SYSCLK_SDIO0_SDCARD>; >> assigned-clock-rates = <50000000>; >> bus-width = <8>; >> >
On 2/22/25 3:19 PM, Shengyu Qu wrote: > Sry I forgot to cc actually. > > 在 2025/2/22 22:17, Shengyu Qu 写道: >> Hi, >> >> Let's continue our discussion here. >> >> Will EMMC speed increase if we only apply patch 1? no the speed is further limited by the assigned-clock-rates. >> >> Also, about your clock-rates modification in patch 2, I CCed William Qiu >> so that we might get some more information about this. thanks! >> >> Besides I've done a speed test with unlimitied clock-rates and an early >> state of SOC clock driver on visionfive 2 when I was working on AXP15060 >> driver before: http://forum.rvspace.org/t/question-about-sd-card- >> speed/1741/21 I believe that looks close to the speeds I was getting when testing, been while >> >> Best regards, >> Shengyu >> >> 在 2025/2/22 21:34, Maud Spierings via B4 Relay 写道: >>> From: Maud Spierings <maud_spierings@hotmail.com> >>> >>> This sdio interface is capable of more than 100 MHz as already >>> indicated >>> by the cap_hs200-1_8v attribute. Increase the max-frequency to 200 MHz >>> so users of this dtsi can increase their SDIO bus speed. >>> >>> Signed-off-by: Maud Spierings <maud_spierings@hotmail.com> >>> --- >>> arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/ >>> riscv/boot/dts/starfive/jh7110-common.dtsi >>> index >>> dd2eefc295e5c8b568a02104ec2189e66b378904..19ca8dc24617c2ad565a4a9b2d9af9bd9491f22e >>> 100644 >>> --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi >>> +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi >>> @@ -258,7 +258,7 @@ &i2c6 { >>> }; >>> &mmc0 { >>> - max-frequency = <100000000>; >>> + max-frequency = <200000000>; >>> assigned-clocks = <&syscrg JH7110_SYSCLK_SDIO0_SDCARD>; >>> assigned-clock-rates = <50000000>; >>> bus-width = <8>; >>> >> >
diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi index dd2eefc295e5c8b568a02104ec2189e66b378904..19ca8dc24617c2ad565a4a9b2d9af9bd9491f22e 100644 --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi @@ -258,7 +258,7 @@ &i2c6 { }; &mmc0 { - max-frequency = <100000000>; + max-frequency = <200000000>; assigned-clocks = <&syscrg JH7110_SYSCLK_SDIO0_SDCARD>; assigned-clock-rates = <50000000>; bus-width = <8>;