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arm64: dts: ti: k3-am625-verdin: add PCIe reset gpio hog

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Add a GPIO hog to release PCIe reset on the carrier board, this is
required to use M.2 or mPCIe cards.

Verdin AM62 does not have any PCIe interface, however the Verdin family
has PCIe and normally an M.2 or mPCIe slot is available in the carrier
board that can be used with cards that use only the USB interface toward
the host CPU, for example cellular network modem.

Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240327182801.5997-3-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Francesco Dolcini
2024-03-27 19:28:01 +01:00
committed by Nishanth Menon
parent 3358aedf89
commit 69ef7d9c29
5 changed files with 37 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi
View File

@@ -160,7 +160,8 @@ &mcu_gpio0 {
pinctrl-0 = <&pinctrl_gpio_1>,
<&pinctrl_gpio_2>,
<&pinctrl_gpio_3>,
<&pinctrl_gpio_4>;
<&pinctrl_gpio_4>,
<&pinctrl_pcie_1_reset>;
};
/* Verdin I2C_3_HDMI */
@@ -211,6 +212,11 @@ &verdin_gpio_keys {
status = "okay";
};
/* Verdin PCIE_1_RESET# */
&verdin_pcie_1_reset_hog {
status = "okay";
};
/* Verdin UART_2 */
&wkup_uart0 {
status = "okay";

8
arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi
View File

@@ -181,7 +181,8 @@ &mcu_gpio0 {
pinctrl-0 = <&pinctrl_gpio_1>,
<&pinctrl_gpio_2>,
<&pinctrl_gpio_3>,
<&pinctrl_gpio_4>;
<&pinctrl_gpio_4>,
<&pinctrl_pcie_1_reset>;
};
/* Verdin I2C_3_HDMI */
@@ -232,6 +233,11 @@ &verdin_gpio_keys {
status = "okay";
};
/* Verdin PCIE_1_RESET# */
&verdin_pcie_1_reset_hog {
status = "okay";
};
/* Verdin UART_2 */
&wkup_uart0 {
status = "okay";

8
arch/arm64/boot/dts/ti/k3-am62-verdin-mallow.dtsi
View File

@@ -154,7 +154,8 @@ &mcu_gpio0 {
pinctrl-0 = <&pinctrl_gpio_1>,
<&pinctrl_gpio_2>,
<&pinctrl_gpio_3>,
<&pinctrl_gpio_4>;
<&pinctrl_gpio_4>,
<&pinctrl_pcie_1_reset>;
};
/* Verdin I2C_3_HDMI */
@@ -200,6 +201,11 @@ &verdin_gpio_keys {
status = "okay";
};
/* Verdin PCIE_1_RESET# */
&verdin_pcie_1_reset_hog {
status = "okay";
};
/* Verdin UART_2 */
&wkup_uart0 {
status = "okay";

8
arch/arm64/boot/dts/ti/k3-am62-verdin-yavia.dtsi
View File

@@ -159,7 +159,8 @@ &mcu_gpio0 {
pinctrl-0 = <&pinctrl_gpio_1>,
<&pinctrl_gpio_2>,
<&pinctrl_gpio_3>,
<&pinctrl_gpio_4>;
<&pinctrl_gpio_4>,
<&pinctrl_pcie_1_reset>;
};
/* Verdin I2C_3_HDMI */
@@ -205,6 +206,11 @@ &verdin_gpio_keys {
status = "okay";
};
/* Verdin PCIE_1_RESET# */
&verdin_pcie_1_reset_hog {
status = "okay";
};
/* Verdin UART_2 */
&wkup_uart0 {
status = "okay";

9
arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
View File

@@ -1413,6 +1413,15 @@ &mcu_gpio0 {
"",
"",
"";
verdin_pcie_1_reset_hog: pcie-1-reset-hog {
gpio-hog;
/* Verdin PCIE_1_RESET# (SODIMM 244) */
gpios = <0 GPIO_ACTIVE_LOW>;
line-name = "PCIE_1_RESET#";
output-low;
status = "disabled";
};
};
/* Verdin CAN_2 */