On Mon, 31 Aug 2020, Tomas Evensen via System-dt wrote:
> Stefano to send out examples and slides
I am attaching the slides and examples, where:
- input.txt is the system device tree snippet, input to lopper
- output.txt is the traditional device tree snipper, output from lopper
tcm_0a@ffe00000 {
compatible = "xilinx,tcm-v1.0";
reg = <0x0 0xffe00000 0x0 0x10000>;
pnode-id = <0xf>;
status = "okay";
};
tcm_1a@ffe20000 {
compatible = "xilinx,tcm-v1.0";
reg = <0x0 0xffe20000 0x0 0x10000>;
pnode-id = <0x10>;
status = "okay";
};
zynqmp_ipi@0 {
compatible = "xlnx,zynqmp-ipi-mailbox";
interrupt-parent = <&gic>;
interrupts = <0 29 4>;
xlnx,ipi-id = <7>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
/* APU<->RPU0 IPI mailbox controller */
ipi_mailbox_rpu0: mailbox@ff90000 {
reg = <0xff990600 0x20>,
<0xff990620 0x20>,
<0xff9900c0 0x20>,
<0xff9900e0 0x20>;
reg-names = "local_request_region",
"local_response_region",
"remote_request_region",
"remote_response_region";
#mbox-cells = <1>;
xlnx,ipi-id = <1>;
};
};
domains {
#address-cells = <0x2>;
#size-cells = <0x2>;
resource_group: resource_group@0 {
compatible = "openamp,remoteproc-v1",
"openamp,group-v1";
memory = <0x0 0x3ed40000 0x0 0x4000
0x0 0x3ed44000 0x0 0x4000
0x0 0x3ed48000 0x0 0x100000
0x0 0x3ed00000 0x0 0x40000>;
access = <&tcm_0_a 0x0>, <&tcm_0_b 0x0>,;
};
openamp_a53 {
compatible = "openamp,domain-v1";
#address-cells = <0x2>;
#size-cells = <0x2>;
memory = <0x0 0x80000000 0x0 0x78000000
0x8 0x0 0x0 0x80000000>;
/*
* Cluster | cpus-mask | execution-mode
*
* execution mode for ARM-A CPUs:
* 0x0: EL0
* 0x1: EL1
* 0x2: EL2
* 0x3: EL3
* bit 31: secure mode / normal mode (secure mode == 1)
*/
cpus = <&cpus_a53 0xf 0x2>;
/*
* Flags field, mapping specific
*
* memory and reserved-memory:
* bit 0: 0/1: RO/RW
*
* xlnx,zynqmp-ipi-mailbox:
* 4 bits for each IPI channel to pass special flags
* 0-3 bits: channel 0
* 4-7 bits: channel 1
* 8-11 bits: channel 2
* 12-15 bits: channel 3
* each 4 bits:
* bit 0: enable/disable (enable==1)
* bit 1: TX/RX (TX==1)
* bit 2-3: unused
*
* Other cases: unused
*
*/
access = <&ipi_mailbox_rpu0 0x13>;
/* 0x1: master */
include = <&resource_group 0x1>;
};
openamp_r5 {
compatible = "openamp,domain-v1";
#address-cells = <0x2>;
#size-cells = <0x2>;
memory = <0x0 0x0 0x0 0x20000000>;
/*
* Cluster | cpus-mask | execution-mode
*
* execution mode ARM-R CPUs:
* bit 30: lockstep (lockstep enabled == 1)
* bit 31: secure mode / normal mode (secure mode == 1)
*/
cpus = <&cpus_r5 0x2 0x80000000>;
/* 0x0: slave */
include = <&resource_group 0x0>;
};
};
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
ranges;
rpu0vdev0vring0: rpu0vdev0vring0@3ed40000 {
compatible = "xilinx,openamp-ipc-1.0";
no-map;
reg = <0x3ed40000 0x4000>;
};
rpu0vdev0vring1: rpu0vdev0vring1@3ed44000 {
compatible = "xilinx,openamp-ipc-1.0";
no-map;
reg = <0x3ed44000 0x4000>;
};
rpu0vdev0buffer: rpu0vdev0buffer@3ed48000 {
compatible = "xilinx,openamp-ipc-1.0";
no-map;
reg = <0x3ed48000 0x100000>;
};
rproc_0_reserved: rproc@3ed000000 {
compatible = "xilinx,openamp-ipc-1.0";
no-map;
reg = <0x3ed00000 0x40000>;
};
};
rpu {
compatible = "xlnx,zynqmp-r5-remoteproc-1.0";
#address-cells = <1>;
#size-cells = <1>;
ranges;
lockstep-mode = <0>;
r5_0 {
ranges;
#address-cells = <1>;
#size-cells = <1>;
memory-region = <&rproc_0_reserved>,
<&rpu0vdev0buffer>, <&rpu0vdev0vring0>, <&rpu0vdev0vring1>;
pnode-id = <0x7>;
mboxes = <&ipi_mailbox_rpu0 0>, <&ipi_mailbox_rpu0 1>;
mbox-names = "tx", "rx";
/* TCM nodes were originally here */
};
};
tcm_0a@ffe00000 {
compatible = "xilinx,tcm-v1.0";
reg = <0x0 0xffe00000 0x0 0x10000>;
pnode-id = <0xf>;
};
tcm_1a@ffe20000 {
compatible = "xilinx,tcm-v1.0";
reg = <0x0 0xffe20000 0x0 0x10000>;
pnode-id = <0x10>;
};
zynqmp_ipi@0 {
compatible = "xlnx,zynqmp-ipi-mailbox";
interrupt-parent = <&gic>;
interrupts = <0 29 4>;
xlnx,ipi-id = <7>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
/* APU<->RPU0 IPI mailbox controller */
ipi_mailbox_rpu0: mailbox@ff90000 {
reg = <0xff990600 0x20>,
<0xff990620 0x20>,
<0xff9900c0 0x20>,
<0xff9900e0 0x20>;
reg-names = "local_request_region",
"local_response_region",
"remote_request_region",
"remote_response_region";
#mbox-cells = <1>;
xlnx,ipi-id = <1>;
};
};
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