diff options
Diffstat (limited to 'bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree')
3 files changed, 75 insertions, 0 deletions
diff --git a/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/files/xen-juno.dtsi b/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/files/xen-juno.dtsi new file mode 100644 index 00000000..0f9af21f --- /dev/null +++ b/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/files/xen-juno.dtsi @@ -0,0 +1,11 @@ +/* + * Disable IOMMU on juno board when Xen is used + */ + +/ { + + /* turn off iommu */ + iommu@2b600000 { + status = "disabled"; + }; +}; diff --git a/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/files/xen-n1sdp.dtsi b/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/files/xen-n1sdp.dtsi new file mode 100644 index 00000000..01ec14a8 --- /dev/null +++ b/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/files/xen-n1sdp.dtsi @@ -0,0 +1,39 @@ +/* + * Modify N1SDP DTB to work properly when Xen is used + */ + +/ { + + /* + * pmu is using PPI interrupts which are reserved by xen + * remove pm nodes + */ + /delete-node/ pmu; + /delete-node/ spe-pmu; + + /* + * disable IOMMU until we have a proper support in xen + */ + /delete-node/ iommu@4f000000; + /delete-node/ iommu@4f400000; + + /* + * Set extra registers required for PCI quirks to communicate with SCP + * and remove invalid properties due to removal + */ + pcie@68000000 { + reg = <0 0x68000000 0 0x1200000>, + <0 0x06000000 0 0x80000>, + <0 0x62000000 0 0x80000>; + /delete-property/ msi-map; + /delete-property/ iommu-map; + }; + + pcie@70000000 { + reg = <0 0x70000000 0 0x1200000>, + <0 0x06000000 0 0x80000>, + <0 0x60000000 0 0x80000>; + /delete-property/ msi-map; + /delete-property/ iommu-map; + }; +}; diff --git a/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/xen-devicetree.bbappend b/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/xen-devicetree.bbappend new file mode 100644 index 00000000..006d0b78 --- /dev/null +++ b/bsp/meta-arm/meta-arm-autonomy/dynamic-layers/meta-arm-bsp/recipes-extended/xen-devicetree/xen-devicetree.bbappend @@ -0,0 +1,25 @@ +# Platform dependent parameters + +FILESEXTRAPATHS_prepend := "${THISDIR}/files:" + +# Add a dtb snippet to turn off iommu in dom0 on Juno board +SRC_URI_append_juno = " file://xen-juno.dtsi" +XEN_DEVICETREE_DTSI_MERGE_append_juno = " xen-juno.dtsi" + +# Add a dtb snippet to remove pmu and iommu in dom0 on N1SDP +SRC_URI_append_n1sdp = " file://xen-n1sdp.dtsi" +XEN_DEVICETREE_DTSI_MERGE_append_n1sdp = " xen-n1sdp.dtsi" + +# Board specific configs +XEN_DEVICETREE_DOM0_BOOTARGS_append_juno = " root=/dev/sda1 rootwait" +XEN_DEVICETREE_XEN_BOOTARGS_append_juno = " console=dtuart dtuart=serial0 bootscrub=0 iommu=no" + +XEN_DEVICETREE_DOM0_BOOTARGS_append_n1sdp = " root=/dev/sda1 rootwait" +XEN_DEVICETREE_XEN_BOOTARGS_append_n1sdp = " console=dtuart dtuart=serial0 bootscrub=0 iommu=no" + +XEN_DEVICETREE_DOM0_BOOTARGS_append_fvp-base = " root=/dev/vda2" +XEN_DEVICETREE_XEN_BOOTARGS_append_fvp-base = " console=dtuart dtuart=serial0 bootscrub=0" + +XEN_DEVICETREE_DOM0_BOOTARGS_append_foundation-armv8 = " root=/dev/vda2" +XEN_DEVICETREE_XEN_BOOTARGS_append_foundation-armv8 = " console=dtuart dtuart=serial0 bootscrub=0" + |