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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
This commit is contained in:
Aswath Govindraju 2021-03-26 12:11:20 +05:30 committed by Nishanth Menon
parent f4cc7daf46
commit 9437499086
2 changed files with 90 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
View File

@ -16,6 +16,65 @@
stdout-path = "serial2:115200n8";
bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
};
evm_12v0: fixedregulator-evm12v0 {
/* main supply */
compatible = "regulator-fixed";
regulator-name = "evm_12v0";
regulator-min-microvolt = <12000000>;
regulator-max-microvolt = <12000000>;
regulator-always-on;
regulator-boot-on;
};
vsys_3v3: fixedregulator-vsys3v3 {
/* Output of LM5140 */
compatible = "regulator-fixed";
regulator-name = "vsys_3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&evm_12v0>;
regulator-always-on;
regulator-boot-on;
};
vsys_5v0: fixedregulator-vsys5v0 {
/* Output of LM5140 */
compatible = "regulator-fixed";
regulator-name = "vsys_5v0";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
vin-supply = <&evm_12v0>;
regulator-always-on;
regulator-boot-on;
};
vdd_mmc1: fixedregulator-sd {
/* Output of TPS22918 */
compatible = "regulator-fixed";
regulator-name = "vdd_mmc1";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
enable-active-high;
vin-supply = <&vsys_3v3>;
gpio = <&exp2 2 GPIO_ACTIVE_HIGH>;
};
vdd_sd_dv: gpio-regulator-TLV71033 {
/* Output of TLV71033 */
compatible = "regulator-gpio";
regulator-name = "tlv71033";
pinctrl-names = "default";
pinctrl-0 = <&vdd_sd_dv_pins_default>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
vin-supply = <&vsys_5v0>;
gpios = <&main_gpio0 55 GPIO_ACTIVE_HIGH>;
states = <1800000 0x0>,
<3300000 0x1>;
};
};
&wkup_pmx0 {
@ -45,6 +104,13 @@
};
&main_pmx0 {
main_i2c0_pins_default: main-i2c0-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL */
J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA */
>;
};
main_i2c1_pins_default: main-i2c1-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xdc, PIN_INPUT_PULLUP, 3) /* (U3) ECAP0_IN_APWM_OUT.I2C1_SCL */
@ -70,6 +136,12 @@
J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS */
>;
};
vdd_sd_dv_pins_default: vdd-sd-dv-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xd0, PIN_OUTPUT, 7) /* (T5) SPI0_D1.GPIO0_55 */
>;
};
};
&wkup_uart0 {
@ -157,6 +229,10 @@
};
&main_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c0_pins_default>;
clock-frequency = <400000>;
exp1: gpio@20 {
compatible = "ti,tca6416";
reg = <0x20>;
@ -206,6 +282,8 @@
/* SD card */
pinctrl-0 = <&main_mmc1_pins_default>;
pinctrl-names = "default";
vmmc-supply = <&vdd_mmc1>;
vqmmc-supply = <&vdd_sd_dv>;
ti,driver-strength-ohm = <50>;
disable-wp;
};

14
arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
View File

@ -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;
};