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-rw-r--r--Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt73
1 files changed, 64 insertions, 9 deletions
diff --git a/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt b/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt
index 2aac1aa4123d..1eb72874130b 100644
--- a/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt
+++ b/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt
@@ -26,6 +26,7 @@ The following are the mandatory properties:
"ti,k2hk-dsp" for DSPs on Keystone 2 66AK2H/K SoCs
"ti,k2l-dsp" for DSPs on Keystone 2 66AK2L SoCs
"ti,k2e-dsp" for DSPs on Keystone 2 66AK2E SoCs
+ "ti,k2g-dsp" for DSPs on Keystone 2 66AK2G SoCs
- reg: Should contain an entry for each value in 'reg-names'.
Each entry should have the memory region's start address
@@ -37,20 +38,18 @@ The following are the mandatory properties:
should be defined in this order,
"l2sram", "l1pram", "l1dram"
-- clocks: Should contain the device's input clock, and should be
- defined as per the bindings in,
- Documentation/devicetree/bindings/clock/keystone-gate.txt
-
- ti,syscon-dev: Should be a pair of the phandle to the Keystone Device
State Control node, and the register offset of the DSP
boot address register within that node's address space.
- resets: Should contain the phandle to the reset controller node
managing the resets for this device, and a reset
- specifier. Please refer to the following reset bindings
- for the reset argument specifier as per SoC,
+ specifier. Please refer to either of the following reset
+ bindings for the reset argument specifier as per SoC,
Documentation/devicetree/bindings/reset/ti-syscon-reset.txt
- for 66AK2HK/66AK2L/66AK2E SoCs
+ for 66AK2HK/66AK2L/66AK2E SoCs or,
+ Documentation/devicetree/bindings/reset/ti,sci-reset.txt
+ for 66AK2G SoCs
- interrupt-parent: Should contain a phandle to the Keystone 2 IRQ controller
IP node that is used by the ARM CorePac processor to
@@ -75,6 +74,22 @@ The following are the mandatory properties:
The gpio device to be used is as per the bindings in,
Documentation/devicetree/bindings/gpio/gpio-dsp-keystone.txt
+SoC-specific Required properties:
+---------------------------------
+The following are mandatory properties for Keystone 2 66AK2HK, 66AK2L and 66AK2E
+SoCs only:
+
+- clocks: Should contain the device's input clock, and should be
+ defined as per the bindings in,
+ Documentation/devicetree/bindings/clock/keystone-gate.txt
+
+The following are mandatory properties for Keystone 2 66AK2G SoCs only:
+
+- power-domains: Should contain a phandle to a PM domain provider node
+ and an args specifier containing the DSP device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+
Optional properties:
--------------------
@@ -85,8 +100,10 @@ Optional properties:
Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
-Example:
---------
+Examples:
+---------
+
+1.
/* 66AK2H/K DSP aliases */
aliases {
rproc0 = &dsp0;
@@ -131,3 +148,41 @@ Example:
};
};
+
+2.
+ /* 66AK2G DSP alias */
+ aliases {
+ rproc0 = &dsp0;
+ };
+
+ /* 66AK2G DSP memory node */
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ };
+ };
+
+ /* 66AK2G DSP node */
+ soc {
+ dsp0: dsp@10800000 {
+ compatible = "ti,k2g-dsp";
+ reg = <0x10800000 0x00100000>,
+ <0x10e00000 0x00008000>,
+ <0x10f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ power-domains = <&k2g_pds 0x0046>;
+ ti,syscon-dev = <&devctrl 0x40>;
+ resets = <&k2g_reset 0x0046 0x1>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <0 8>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio0 27 0>;
+ memory-region = <&dsp_common_memory>;
+ };
+ };

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