diff options
| author | Aswath Govindraju <a-govindraju@ti.com> | 2021-03-26 09:41:20 +0300 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2021-03-27 02:10:35 +0300 |
| commit | 9437499086c24abf298bc3c3a053faedfc19bab1 (patch) | |
| tree | dffddd89f12fa32d776bc0af911881a2a87628b7 /arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | |
| parent | f4cc7daf460b285d3b318496654dab01472df8e4 (diff) | |
| download | linux-9437499086c24abf298bc3c3a053faedfc19bab1.tar.xz | |
arm64: dts: ti: k3-j7200: Add support for higher speed modes and update delay select values for MMCSD subsystems
The following speed modes are now supported in J7200 SoC,
- HS200 and HS400 modes at 1.8 V card voltage, in MMCSD0 subsystem [1].
- UHS-I speed modes in MMCSD1 subsystem [1].
Add support for UHS-I modes by adding voltage regulator device tree nodes
and corresponding pinmux details, to power cycle and voltage switch cards.
Set respective tags in sdhci0 and remove no-1-8-v tag from sdhci1
device tree nodes.
Also update the delay values for various speed modes supported, based on
the revised january 2021 J7200 datasheet[2].
[1] - section 12.3.6.1.1 MMCSD Features, in
https://www.ti.com/lit/ug/spruiu1a/spruiu1a.pdf,
(SPRUIU1A – JULY 2020 – REVISED JANUARY 2021)
[2] - https://www.ti.com/lit/ds/symlink/dra821u.pdf,
(SPRSP57B – APRIL 2020 – REVISED JANUARY 2021)
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20210326064120.31919-4-a-govindraju@ti.com
Diffstat (limited to 'arch/arm64/boot/dts/ti/k3-j7200-main.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi index e60650a62b14..f86c493a44f1 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi @@ -512,11 +512,16 @@ ti,otap-del-sel-mmc-hs = <0x0>; ti,otap-del-sel-ddr52 = <0x6>; ti,otap-del-sel-hs200 = <0x8>; - ti,otap-del-sel-hs400 = <0x0>; + ti,otap-del-sel-hs400 = <0x5>; + ti,itap-del-sel-legacy = <0x10>; + ti,itap-del-sel-mmc-hs = <0xa>; ti,strobe-sel = <0x77>; + ti,clkbuf-sel = <0x7>; ti,trm-icp = <0x8>; bus-width = <8>; mmc-ddr-1_8v; + mmc-hs200-1_8v; + mmc-hs400-1_8v; dma-coherent; }; @@ -534,7 +539,12 @@ ti,otap-del-sel-sdr50 = <0xc>; ti,otap-del-sel-sdr104 = <0x5>; ti,otap-del-sel-ddr50 = <0xc>; - no-1-8-v; + ti,itap-del-sel-legacy = <0x0>; + ti,itap-del-sel-sd-hs = <0x0>; + ti,itap-del-sel-sdr12 = <0x0>; + ti,itap-del-sel-sdr25 = <0x0>; + ti,clkbuf-sel = <0x7>; + ti,trm-icp = <0x8>; dma-coherent; }; |