From: Felix Lelchuk <felix.2.lelc...@aptiv.com>
BZX-1487: Pfe slave driver is integrated on the Windriver linux
-device tree adaptations
-#include "s32g-pfe-slave.dtsi"
-override pfe_slave properties for our use case:
-unset dma-coherent as was done by OBE (=Olaf?) for the master case
(why?)
-interrupts, interrupt-names: since we only use hif1 only connect
interrupts of HIF1
-limit nxp,pfeng-hif-channels to only hif1
-set nxp,pfeng-ihc-channel as hif1 (our HIF used for IHC)
-set nxp,pfeng-master-channel as hif0 (HIF assigned to the master = M7)
-disable predefined non-AUX interfaces pfesl_netif0..2:
-by setting status = "disabled"
-non-AUX interfaces are by design explicitly bonded to network-facing
ports (EMACx) - and in our use case we want rule-based routing
-enable the predefined AUX interface aux0sl:
-by setting status = "okay"
-assigning the desired MAC address as
-local-mac-address = [ e2 51 24 01 df 37 ]
-and assigning nxp,pfeng-hif-channels as hif1
Notes:
AUX interface shows as aux0sl under Linux (we want this one)
non-AUX interface shows as pfeNsl under Linux (should not show up as disabled
on device-tree level)
it was critical to add a master AUX interface on M7 side (hif0) for IHC and to
handle interrupts which drive RPC processing
Signed-off-by: Felix Lelchuk <felix.2.lelc...@aptiv.com>
[Quanyang:
1. This patch comes from
meta-aptiv/recipes-kernel/linux/files/recipes-kernel/linux/files/0001-Fix-DTS-for-Aptiv-PFE-Slave.patch
2. The commit message is from 1d1372b ("BZX-1487: Pfe slave driver is
integrated on the Windriver linux"
in meta-aptiv, and I only cut out the related part.
3. Original modifications are in s32g274a-aptiv.dts and I move them to
a new file s32g274a-aptiv-pfems.dts.]
Signed-off-by: Quanyang Wang <quanyang.w...@windriver.com>
---
.../dts/freescale/s32g274a-aptiv-pfems.dts | 22 ++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/s32g274a-aptiv-pfems.dts
b/arch/arm64/boot/dts/freescale/s32g274a-aptiv-pfems.dts
index 6c863a9a4d997..d87818f05240e 100644
--- a/arch/arm64/boot/dts/freescale/s32g274a-aptiv-pfems.dts
+++ b/arch/arm64/boot/dts/freescale/s32g274a-aptiv-pfems.dts
@@ -28,10 +28,30 @@ pfe_reserved_bmu2: pfebufs@83000000 {
};
};
-&pfe_aux0 {
+&pfe_slave {
status = "okay";
+ /delete-property/ dma-coherent; /* Disable for cut 1.1 compatibility
OBE */
+ interrupts = <GIC_SPI 191 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "hif1";
+ nxp,pfeng-hif-channels = <PFE_HIF_CHANNEL_1>;
+ nxp,pfeng-ihc-channel = <PFE_HIF_CHANNEL_1>;
+ nxp,pfeng-master-channel = <PFE_HIF_CHANNEL_0>;
};
&pfesl_aux0 {
status = "okay";
+ local-mac-address = [ e2 51 24 01 df 37 ];
+ nxp,pfeng-hif-channels = <PFE_HIF_CHANNEL_1>;
+};
+
+&pfesl_netif0 {
+ status = "disabled";
+};
+
+&pfesl_netif1 {
+ status = "disabled";
+};
+
+&pfesl_netif2 {
+ status = "disabled";
};
--
2.36.1
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