mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-10 18:53:38 +00:00
803d3a1870
Add Support for J721E Common Processor board support.
The EVM architecture is as follows:
+------------------------------------------------------+
| +-------------------------------------------+ |
| | | |
| | Add-on Card 1 Options | |
| | | |
| +-------------------------------------------+ |
| |
| |
| +-------------------+ |
| | | |
| | SOM | |
| +--------------+ | | |
| | | | | |
| | Add-on | +-------------------+ |
| | Card 2 | | Power Supply
| | Options | | |
| | | | |
| +--------------+ | <---
+------------------------------------------------------+
Common Processor Board
Common Processor board is the baseboard that has most of the actual
connectors, power supply etc. A SOM (System on Module) is plugged on
to the common processor board and this contains the SoC, PMIC, DDR and
basic high speed components necessary for functionality. Add-n card
options add further functionality (such as additional Audio, Display,
networking options).
Note:
A) The minimum configuration required to boot up the board is System On
Module(SOM) + Common Processor Board.
B) Since there is just a single SOM and Common Processor Board, we are
maintaining common processor board as the base dts and SOM as the dtsi
that we include. In the future as more SOM's appear, we should move
common processor board as a dtsi and include configurations as dts.
C) All daughter cards beyond the basic boards shall be maintained as
overlays.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
29 lines
549 B
Text
29 lines
549 B
Text
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
|
|
*/
|
|
|
|
/dts-v1/;
|
|
|
|
#include "k3-j721e.dtsi"
|
|
|
|
/ {
|
|
memory@80000000 {
|
|
device_type = "memory";
|
|
/* 4G RAM */
|
|
reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
|
|
<0x00000008 0x80000000 0x00000000 0x80000000>;
|
|
};
|
|
|
|
reserved_memory: reserved-memory {
|
|
#address-cells = <2>;
|
|
#size-cells = <2>;
|
|
ranges;
|
|
|
|
secure_ddr: optee@9e800000 {
|
|
reg = <0x00 0x9e800000 0x00 0x01800000>;
|
|
alignment = <0x1000>;
|
|
no-map;
|
|
};
|
|
};
|
|
};
|