diff options
| author | Joao Paulo Goncalves <joao.goncalves@toradex.com> | 2023-11-20 14:38:44 -0300 |
|---|---|---|
| committer | Joao Paulo Goncalves <joao.goncalves@toradex.com> | 2023-11-23 09:18:51 -0300 |
| commit | 2f7563dc09664a51954aa33a4bb82d20098c0009 (patch) | |
| tree | 1b9cc4f0d186e134fc66a283118374fe9886e609 /arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | |
| parent | 61b5a1ae2fb4376e5168f0152ca54c9e44f84de7 (diff) | |
arm64: dts: ti: verdin-am62: improve spi1 chip-select pinctrl
Verdin SPI_1 interface has a dedicated hardware controlled chip select
that is currently configured in the same pinctrl group as MISO/MOSI/CLK,
however it is possible that it can be used only as a standard GPIO be it
a chip select or not.
To maximize flexibility and avoid duplication in the carrier board dts
files move the SPI_1 CS in a dedicated pinctrl and also adds an
additional pinctrl to simplify using SPI_1 CS as a GPIO.
Upstream-Status: Submitted [https://lore.kernel.org/all/20231123112826.16549-1-francesco@dolcini.it/]
Signed-off-by: Joao Paulo Goncalves <joao.goncalves@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Diffstat (limited to 'arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi index 0f62d9cea1f8..d8e0cd781bb2 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -256,6 +256,13 @@ >; }; + /* Verdin SPI_1 CS as GPIO */ + pinctrl_qspi1_io4_gpio: main-gpio0-7-default-pins { + pinctrl-single,pins = < + AM62X_IOPAD(0x001c, PIN_INPUT, 7) /* (J23) OSPI0_D4.GPIO0_7 */ /* SODIMM 202 */ + >; + }; + /* Verdin QSPI_1_CS# as GPIO (conflict with Verdin QSPI_1 interface) */ pinctrl_qspi1_cs_gpio: main-gpio0-11-pins-default { pinctrl-single,pins = < @@ -622,12 +629,18 @@ pinctrl_spi1: main-spi1-pins-default { pinctrl-single,pins = < AM62X_IOPAD(0x0020, PIN_INPUT, 1) /* (J25) OSPI0_D5.SPI1_CLK */ /* SODIMM 196 */ - AM62X_IOPAD(0x001c, PIN_INPUT, 1) /* (J23) OSPI0_D4.SPI1_CS0 */ /* SODIMM 202 */ AM62X_IOPAD(0x0024, PIN_INPUT, 1) /* (H25) OSPI0_D6.SPI1_D0 */ /* SODIMM 200 */ AM62X_IOPAD(0x0028, PIN_INPUT, 1) /* (J22) OSPI0_D7.SPI1_D1 */ /* SODIMM 198 */ >; }; + /* Verdin SPI_1 CS */ + pinctrl_spi1_cs0: main-spi1-cs0-default-pins { + pinctrl-single,pins = < + AM62X_IOPAD(0x001c, PIN_INPUT, 1) /* (J23) OSPI0_D4.SPI1_CS0 */ /* SODIMM 202 */ + >; + }; + /* ETH_25MHz_CLK */ pinctrl_eth_clock: main-system-clkout0-pins-default { pinctrl-single,pins = < @@ -1305,7 +1318,7 @@ /* Verdin SPI_1 */ &main_spi1 { pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_spi1>; + pinctrl-0 = <&pinctrl_spi1>, <&pinctrl_spi1_cs0>; ti,pindir-d0-out-d1-in; status = "disabled"; }; |