diff options
| author | Peng Fan <peng.fan@nxp.com> | 2018-09-14 21:36:01 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:34:14 +0800 |
| commit | 47e828d2913fb07ca17269fe2ce6a523a4b27f57 (patch) | |
| tree | 4c4bc2e8d92cb337d9577ef9eb1b87af7b4fd7ac /arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-dom0.dts | |
| parent | 21bc8ccb1652bb89ed6e0ae2d1ba3d885661d608 (diff) | |
MLK-19664-2 ARM64: dts: imx8qm domu: enable gpio controller
Enable the gpio controller, but remove the power-domain property.
Currently we are using mmio trap in XEN to handle GPIO.
For Dom0, it has the highest priviledge to read/write any gpio registers
and the interrupts are also forwarded to Dom0.
For DomU, a new property as following is added to doma node in dom0 dts.
gpios = <&gpio1 13 GPIO_ACTIVE_LOW>, <&gpio4 9 GPIO_ACTIVE_LOW>;
xen will parse it and restrict domu read/write behavior.
xen,shared means mmio trap is used.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-dom0.dts')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-dom0.dts | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-dom0.dts b/arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-dom0.dts index db9f3f97384c..06c9acb18afb 100644 --- a/arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-dom0.dts +++ b/arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-dom0.dts @@ -407,6 +407,14 @@ xen,passthrough; }; +&gpio1 { + xen,shared; +}; + +&gpio4 { + xen,shared; +}; + &dsp { xen,passthrough; }; |