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| author |   Hari Nagalla <hnagalla@ti.com> | 2024-10-03 12:01:15 -0500 |
|---|---|---|
| committer |   Vignesh Raghavendra <vigneshr@ti.com> | 2024-10-20 22:02:07 +0530 |
| commit | 23a6aba92e53883bccbbb27933aad6dd09992e6f (patch) | |
| tree | a11fab2b661a5a5f9092275429cfa7df4f8042c1 | |
| parent | arm64: dts: ti: k3-am62: Add M4F remoteproc node (diff) | |
| download | wireguard-linux-23a6aba92e53883bccbbb27933aad6dd09992e6f.tar.xz wireguard-linux-23a6aba92e53883bccbbb27933aad6dd09992e6f.zip | |
arm64: dts: ti: k3-am625-sk: Add M4F remoteproc node
The AM62x SoCs of the TI K3 family have a Cortex M4F core in the MCU
domain. This core can be used by non safety applications as a remote
processor. When used as a remote processor with virtio/rpmessage IPC,
two carveout reserved memory nodes are needed. The first region is used
as a DMA pool for the rproc device, and the second region will furnish
the static carveout regions for the firmware memory.
The current carveout addresses and sizes are defined statically for
each rproc device. The M4F processor does not have an MMU, and as such
requires the exact memory used by the firmware to be set-aside.
Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Signed-off-by: Andrew Davis <afd@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
Link: https://lore.kernel.org/r/20241003170118.24932-3-afd@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi index 44ff67b6bf1e..6957b3e44c82 100644 --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi @@ -56,6 +56,18 @@ linux,cma-default; }; + mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9cb00000 0x00 0x100000>; + no-map; + }; + + mcu_m4fss_memory_region: m4f-memory@9cc00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9cc00000 0x00 0xe00000>; + no-map; + }; + secure_tfa_ddr: tfa@9e780000 { reg = <0x00 0x9e780000 0x00 0x80000>; alignment = <0x1000>; @@ -464,6 +476,13 @@ }; }; +&mcu_m4fss { + mboxes = <&mailbox0_cluster0 &mbox_m4_0>; + memory-region = <&mcu_m4fss_dma_memory_region>, + <&mcu_m4fss_memory_region>; + status = "okay"; +}; + &usbss0 { bootph-all; status = "okay"; |