6794d3771c
A CMA memory pool reserved memory node is added, and is attached to the DSP node through the 'memory-region' property on the K2G ICE board. This area will be used for allocating virtio rings and buffers. This node allows the DSP Memory Protection and Address Extension (MPAX) module to be configured properly for the DSP processor, and matches the values used on the other Keystone 2 boards for software compatibility. The reserved memory node and the user DSP node are also marked okay to enable the DSP on the K2G ICE board. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
54 lines
1.1 KiB
Plaintext
54 lines
1.1 KiB
Plaintext
/*
|
|
* Device Tree Source for K2G Industrial Communication Engine EVM
|
|
*
|
|
* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0
|
|
*/
|
|
/dts-v1/;
|
|
|
|
#include "keystone-k2g.dtsi"
|
|
|
|
/ {
|
|
compatible = "ti,k2g-ice", "ti,k2g", "ti,keystone";
|
|
model = "Texas Instruments K2G Industrial Communication EVM";
|
|
|
|
memory@800000000 {
|
|
device_type = "memory";
|
|
reg = <0x00000008 0x00000000 0x00000000 0x20000000>;
|
|
};
|
|
|
|
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;
|
|
status = "okay";
|
|
};
|
|
};
|
|
};
|
|
|
|
&k2g_pinctrl {
|
|
uart0_pins: pinmux_uart0_pins {
|
|
pinctrl-single,pins = <
|
|
K2G_CORE_IOPAD(0x11cc) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* uart0_rxd.uart0_rxd */
|
|
K2G_CORE_IOPAD(0x11d0) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */
|
|
>;
|
|
};
|
|
};
|
|
|
|
&uart0 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&uart0_pins>;
|
|
status = "okay";
|
|
};
|
|
|
|
&dsp0 {
|
|
memory-region = <&dsp_common_memory>;
|
|
status = "okay";
|
|
};
|