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arm64: dts: ti: verdin-am62: use SD1 CD as GPIO

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TI SDHCI instance has a hardware debounce timer of 1 second as described
in commit 7ca0f166f5 ("mmc: sdhci_am654: Add workaround for card detect
debounce timer"), because of this the boot time increases of up to 1
second.

Workaround the issue the same way that is done on
arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts, using the SD1 CD as
GPIO.

Suggested-by: Nishanth Menon <nm@ti.com>
Reported-by: João Paulo Silva Gonçalves <joao.goncalves@toradex.com>
Closes: https://lore.kernel.org/all/0e81af80de3d55e72f79af83fa5db87f5c9938f8.camel@toradex.com/
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240325083340.89568-1-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Francesco Dolcini 2024-03-25 09:33:40 +01:00 committed by Nishanth Menon
parent f70a888297
commit ef00a95def
1 changed files with 10 additions and 2 deletions
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12
arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
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@ -457,6 +457,13 @@ AM62X_IOPAD(0x01c4, PIN_INPUT, 7) /* (B14) SPI0_D1.GPIO1_19 */ /* SODIMM 161 */
>;
};
/* Verdin SD_1_CD# as GPIO */
pinctrl_sd1_cd_gpio: main-gpio1-48-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x240, PIN_INPUT_PULLUP, 7) /* (D17) MMC1_SDCD.GPIO1_48 */ /* SODIMM 84 */
>;
};
/* Verdin DSI_1_INT# (pulled-up as active-low) */
pinctrl_dsi1_int: main-gpio1-49-default-pins {
pinctrl-single,pins = <
@ -571,7 +578,6 @@ AM62X_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */ /* SODIMM 80 */
AM62X_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */ /* SODIMM 82 */
AM62X_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */ /* SODIMM 70 */
AM62X_IOPAD(0x224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */ /* SODIMM 72 */
AM62X_IOPAD(0x240, PIN_INPUT_PULLUP, 0) /* (D17) MMC1_SDCD */ /* SODIMM 84 */
>;
};
@ -1441,10 +1447,12 @@ &sdhci0 {
/* Verdin SD_1 */
&sdhci1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdhci1>;
pinctrl-0 = <&pinctrl_sdhci1>, <&pinctrl_sd1_cd_gpio>;
cd-gpios = <&main_gpio1 48 GPIO_ACTIVE_LOW>;
disable-wp;
vmmc-supply = <&reg_sdhc1_vmmc>;
vqmmc-supply = <&reg_sdhc1_vqmmc>;
ti,fails-without-test-cd;
status = "disabled";
};