diff options
| author |   Christoph Niedermaier <cniedermaier@dh-electronics.com> | 2021-07-14 23:06:59 +0200 |
|---|---|---|
| committer |   Shawn Guo <shawnguo@kernel.org> | 2021-07-23 11:56:05 +0800 |
| commit | 2af8a617b14da9e95ffb3ec07b6b8c3a0a4fff6b (patch) | |
| tree | 8ed3faf7a8f57005f1fa6b1e375b8db155440e8f /arch/arm/boot/dts/imx6q-dhcom-som.dtsi | |
| parent | ARM: dts: imx7d-remarkable2: Add WiFi support (diff) | |
| download | linux-dev-2af8a617b14da9e95ffb3ec07b6b8c3a0a4fff6b.tar.xz linux-dev-2af8a617b14da9e95ffb3ec07b6b8c3a0a4fff6b.zip | |
ARM: dts: imx6q-dhcom: Add the parallel system bus
Add the parallel system bus provided by the i.MX6 WEIM interface via an
address latch. The OE pin of the latch is controlled by a fixed regulator.
The pin is low active. This is ensured by omitting the regulators property
enable-active-high. The flags value of the gpio property (3rd value), which
is also use to define active high/low, is set to 0 because it is ignored
by gpiolib-of.c.
Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: kernel@dh-electronics.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/imx6q-dhcom-som.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/imx6q-dhcom-som.dtsi | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi index 4bf51f3ce003..921a695b79fb 100644 --- a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi +++ b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi @@ -46,6 +46,14 @@ vin-supply = <&sw2_reg>; }; + /* OE pin of the latch is low active */ + reg_latch_oe_on: regulator-latch-oe-on { + compatible = "regulator-fixed"; + gpio = <&gpio3 22 0>; + regulator-always-on; + regulator-name = "latch_oe_on"; + }; + reg_usb_otg_vbus: regulator-usb-otg-vbus { compatible = "regulator-fixed"; regulator-name = "usb_otg_vbus"; @@ -455,6 +463,43 @@ MX6QDL_PAD_SD4_DAT7__SD4_DATA7 0x17059 >; }; + + pinctrl_weim: weim-grp { + fsl,pins = < + MX6QDL_PAD_EIM_OE__EIM_OE_B 0xb0a6 + MX6QDL_PAD_EIM_RW__EIM_RW 0xb0a6 /* WE */ + MX6QDL_PAD_EIM_LBA__EIM_LBA_B 0xb060 /* LE */ + MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x130b0 + MX6QDL_PAD_EIM_DA15__EIM_AD15 0xb0a6 + MX6QDL_PAD_EIM_DA14__EIM_AD14 0xb0a6 + MX6QDL_PAD_EIM_DA13__EIM_AD13 0xb0a6 + MX6QDL_PAD_EIM_DA12__EIM_AD12 0xb0a6 + MX6QDL_PAD_EIM_DA11__EIM_AD11 0xb0a6 + MX6QDL_PAD_EIM_DA10__EIM_AD10 0xb0a6 + MX6QDL_PAD_EIM_DA9__EIM_AD09 0xb0a6 + MX6QDL_PAD_EIM_DA8__EIM_AD08 0xb0a6 + MX6QDL_PAD_EIM_DA7__EIM_AD07 0xb0a6 + MX6QDL_PAD_EIM_DA6__EIM_AD06 0xb0a6 + MX6QDL_PAD_EIM_DA5__EIM_AD05 0xb0a6 + MX6QDL_PAD_EIM_DA4__EIM_AD04 0xb0a6 + MX6QDL_PAD_EIM_DA3__EIM_AD03 0xb0a6 + MX6QDL_PAD_EIM_DA2__EIM_AD02 0xb0a6 + MX6QDL_PAD_EIM_DA1__EIM_AD01 0xb0a6 + MX6QDL_PAD_EIM_DA0__EIM_AD00 0xb0a6 + >; + }; + + pinctrl_weim_cs0: weim-cs0-grp { + fsl,pins = < + MX6QDL_PAD_EIM_CS0__EIM_CS0_B 0xb0b1 + >; + }; + + pinctrl_weim_cs1: weim-cs1-grp { + fsl,pins = < + MX6QDL_PAD_EIM_CS1__EIM_CS1_B 0xb0b1 + >; + }; }; ®_arm { @@ -544,3 +589,15 @@ keep-power-in-suspend; status = "okay"; }; + +&weim { + #address-cells = <2>; + #size-cells = <1>; + fsl,weim-cs-gpr = <&gpr>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_weim &pinctrl_weim_cs0 &pinctrl_weim_cs1>; + /* It is necessary to setup 2x 64MB otherwise setting gpr fails */ + ranges = <0 0 0x08000000 0x04000000>, /* CS0 */ + <1 0 0x0c000000 0x04000000>; /* CS1 */ + status = "disabled"; +}; |