openwrtv4/target/linux/ipq40xx/files-4.14/arch/arm/boot/dts/qcom-ipq4018-fritz4040.dts
Sven Eckelmann 0d62432834 ipq40xx: Remove unused reserved-memory nodes
The reserved-memory regions are mostly undocumented by QCA and are named
very unspecific in the QSDK device trees. It was tried to clean them up by
commit 71ed9f10a3 ("ipq40xx: Use detailed reserved memory for A42") and
similar changes.

The features which require these regions were mostly unknown but
Senthilkumar N L <snlakshm@qti.qualcomm.com> and Sricharan Ramabadhran
<srichara@qti.qualcomm.com> provided some more insight in some of them:

* crash dump feature
  - a couple of regions used when 'qca,scm_restart_reason' dt node has the
    value 'dload_status' not set to 1
    + apps_bl <0x87000000 0x400000>
    + sbl <0x87400000 0x100000>
    + cnss_debug <0x87400000 0x100000>
    + cpu_context_dump <0x87b00000 0x080000>
  - required driver not available in Linux
  - safe to remove
* QSEE app execution
  - region tz_apps <0x87b80000 0x280000>
  - required driver not available in Linux
  - safe to remove
* communication with TZ/QSEE
  - region smem <0x87b80000 0x280000>
  - driver changes not yet upstreamed
  - must not be removed because any access can crash kernel/program
* trustzone (QSEE) private memory
  - region tz <0x87e80000 0x180000>
  - must not be removed because any access can crash kernel/program

Removing the unnecessary regions saves some kilobyte of reserved-memory and
cleans up the device tree:

* 2560 KiB
  - 8devices Jalapeno
  - AVM FRITZ!Box 4040
  - Compex WPJ428
  - Meraki MR33 Access Point
  - OpenMesh A42
* 14336 KiB
  - GL.iNet GL-B1300
  - Qualcomm Technologies, Inc. IPQ40xx/AP-DK01.1-C1

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
2018-04-20 20:58:52 +02:00

317 lines
5.8 KiB
Text

/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "qcom-ipq4019.dtsi"
#include "qcom-ipq4019-bus.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/soc/qcom,tcsr.h>
/ {
model = "AVM FRITZ!Box 4040";
compatible = "avm,fritzbox-4040", "qcom,ipq4019";
aliases {
led-boot = &power;
led-failsafe = &flash;
led-running = &power;
led-upgrade = &flash;
};
reserved-memory {
#address-cells = <0x1>;
#size-cells = <0x1>;
ranges;
smem@87e00000 {
reg = <0x87e00000 0x080000>;
no-map;
};
tz@87e80000 {
reg = <0x87e80000 0x180000>;
no-map;
};
};
soc {
mdio@90000 {
status = "okay";
};
ess-psgmii@98000 {
status = "okay";
};
tcsr@1949000 {
compatible = "qcom,tcsr";
reg = <0x1949000 0x100>;
qcom,wifi_glb_cfg = <TCSR_WIFI_GLB_CFG>;
};
tcsr@194b000 {
compatible = "qcom,tcsr";
reg = <0x194b000 0x100>;
qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
};
ess_tcsr@1953000 {
compatible = "qcom,tcsr";
reg = <0x1953000 0x1000>;
qcom,ess-interface-select = <TCSR_ESS_PSGMII>;
};
tcsr@1957000 {
compatible = "qcom,tcsr";
reg = <0x1957000 0x100>;
qcom,wifi_noc_memtype_m0_m2 = <TCSR_WIFI_NOC_MEMTYPE_M0_M2>;
};
usb2@60f8800 {
status = "okay";
};
serial@78af000 {
pinctrl-0 = <&serial_pins>;
pinctrl-names = "default";
status = "okay";
};
usb3@8af8800 {
status = "okay";
};
crypto@8e3a000 {
status = "okay";
};
wifi@a000000 {
status = "okay";
};
wifi@a800000 {
status = "okay";
};
watchdog@b017000 {
status = "okay";
};
qca8075: ess-switch@c000000 {
status = "okay";
#gpio-cells = <2>;
gpio-controller;
enable-usb-power {
gpio-hog;
line-name = "enable USB3 power";
gpios = <7 GPIO_ACTIVE_HIGH>;
output-high;
};
};
edma@c080000 {
status = "okay";
};
};
gpio-keys {
compatible = "gpio-keys";
wlan {
label = "wlan";
gpios = <&tlmm 58 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RFKILL>;
};
wps {
label = "wps";
gpios = <&tlmm 63 GPIO_ACTIVE_LOW>;
linux,code = <KEY_WPS_BUTTON>;
};
};
gpio-leds {
compatible = "gpio-leds";
wlan {
label = "fritz4040:green:wlan";
gpios = <&qca8075 1 GPIO_ACTIVE_HIGH>;
};
panic: info_red {
label = "fritz4040:red:info";
gpios = <&qca8075 3 GPIO_ACTIVE_HIGH>;
panic-indicator;
};
wan {
label = "fritz4040:green:wan";
gpios = <&qca8075 5 GPIO_ACTIVE_HIGH>;
};
power: power {
label = "fritz4040:green:power";
gpios = <&qca8075 11 GPIO_ACTIVE_HIGH>;
};
lan {
label = "fritz4040:green:lan";
gpios = <&qca8075 13 GPIO_ACTIVE_HIGH>;
};
flash: info_amber {
label = "fritz4040:amber:info";
gpios = <&qca8075 15 GPIO_ACTIVE_HIGH>;
};
};
};
&tlmm {
serial_pins: serial_pinmux {
mux {
pins = "gpio60", "gpio61";
function = "blsp_uart0";
bias-disable;
};
};
spi_0_pins: spi_0_pinmux {
mux {
function = "blsp_spi0";
pins = "gpio55", "gpio56", "gpio57";
drive-strength = <12>;
bias-disable;
};
mux_cs {
function = "gpio";
pins = "gpio54";
drive-strength = <2>;
bias-disable;
output-high;
};
};
};
&cryptobam {
status = "okay";
};
&blsp_dma {
status = "okay";
};
&spi_0 { /* BLSP1 QUP1 */
pinctrl-0 = <&spi_0_pins>;
pinctrl-names = "default";
status = "okay";
cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
mx25l25635f@0 {
compatible = "jedec,spi-nor";
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
spi-max-frequency = <24000000>;
status = "okay";
m25p,fast-read;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition0@0 {
label = "SBL1";
reg = <0x00000000 0x00040000>;
read-only;
};
partition1@40000 {
label = "MIBIB";
reg = <0x00040000 0x00020000>;
read-only;
};
partition2@60000 {
label = "QSEE";
reg = <0x00060000 0x00060000>;
read-only;
};
partition3@c0000 {
label = "CDT";
reg = <0x000c0000 0x00010000>;
read-only;
};
partition4@d0000 {
label = "DDRPARAMS";
reg = <0x000d0000 0x00010000>;
read-only;
};
partition5@e0000 {
label = "APPSBLENV"; /* uboot env - empty */
reg = <0x000e0000 0x00010000>;
read-only;
};
partition6@f0000 {
label = "urlader"; /* APPSBL */
reg = <0x000f0000 0x0002dc000>;
read-only;
};
partition7@11dc00 {
/* make a backup of this partition! */
label = "urlader_config";
reg = <0x0011dc00 0x00002400>;
read-only;
};
partition8@120000 {
label = "tffs1";
reg = <0x00120000 0x00080000>;
read-only;
};
partition9@1a0000 {
label = "tffs2";
reg = <0x001a0000 0x00080000>;
read-only;
};
partition10@220000 {
label = "uboot";
reg = <0x00220000 0x00080000>;
read-only;
};
partition11@2A0000 {
label = "firmware";
reg = <0x002a0000 0x01c60000>;
};
partition12@1f00000 {
label = "jffs2";
reg = <0x01f00000 0x00100000>;
};
};
};
};
&usb3_ss_phy {
status = "okay";
};
&usb3_hs_phy {
status = "okay";
};
&usb2_hs_phy {
status = "okay";
};