71ed9f10a3
The APPSBL and anything after that it not allowed to touch some of the memory regions which are used by other components. Still trying to write to the memory can lead to sudden device restarts (IPQ40xx) # mw 87e80000 0 data abort pc : [<873149f8>] lr : [<87308578>] sp : 86edfc28 ip : 86ef4412 fp : 00000000 r10: 00000000 r9 : 00000000 r8 : 86edff68 r7 : 00000003 r6 : 8737e624 r5 : 86ef4420 r4 : 8736c154 r3 : 00000000 r2 : 00000010 r1 : 00000000 r0 : 00000000 Flags: nZCv IRQs off FIQs off Mode SVC_32 Resetting CPU ... The device manufacturer only provided a very rough list of regions: * rsvd1: 0x87000000 0x500000 * wifi_dump: 0x87500000 0x600000 * rsvd2: 0x87b00000 0x500000 A more detailed list for devices using the AP.DK reference design memory maps was provided by Roman Yeryomin <roman@advem.lv> in commit 56f2df879fd ("ipq806x: ipq4019: add ap-dk01.1-c1 board support"): * apps_bl: 0x87000000 0x400000 * sbl: 0x87400000 0x100000 * cnss_debug: 0x87500000 0x600000 * cpu_context_dump: 0x87b00000 0x080000 * tz_apps: 0x87b80000 0x280000 * smem: 0x87e00000 0x080000 * tz: 0x87e80000 0x180000 The u-boot function ipq_fdt_mem_rsvd_fixup seems to suggest that only the rsvd2 (tz_apps, smem, tz) should be protected. All other regions would have been removed by it when CONFIG_QCA_APPSBL_DLOAD is not enabled. This allows to reduce the 16MB reserved memory region to only 4.5MB. Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
237 lines
4.5 KiB
Text
237 lines
4.5 KiB
Text
/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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* Copyright (c) 2017, Sven Eckelmann <sven.eckelmann@openmesh.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#include "qcom-ipq4019.dtsi"
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#include "qcom-ipq4019-bus.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/soc/qcom,tcsr.h>
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/ {
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model = "OpenMesh A42";
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compatible = "openmesh,a42", "qcom,ipq4019";
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reserved-memory {
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#address-cells = <0x1>;
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#size-cells = <0x1>;
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ranges;
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tz_apps@87b80000 {
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reg = <0x87b80000 0x280000>;
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no-map;
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};
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smem@87e00000 {
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reg = <0x87e00000 0x080000>;
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no-map;
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};
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tz@87e80000 {
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reg = <0x87e80000 0x180000>;
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no-map;
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};
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};
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soc {
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mdio@90000 {
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status = "okay";
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};
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ess-psgmii@98000 {
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status = "okay";
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};
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tcsr@194b000 {
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/* select hostmode */
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compatible = "qcom,tcsr";
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reg = <0x194b000 0x100>;
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qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
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status = "okay";
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};
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tcsr@1949000 {
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compatible = "qcom,tcsr";
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reg = <0x1949000 0x100>;
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qcom,wifi_glb_cfg = <TCSR_WIFI_GLB_CFG>;
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};
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ess_tcsr@1953000 {
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compatible = "qcom,tcsr";
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reg = <0x1953000 0x1000>;
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qcom,ess-interface-select = <TCSR_ESS_PSGMII>;
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};
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tcsr@1957000 {
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compatible = "qcom,tcsr";
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reg = <0x1957000 0x100>;
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qcom,wifi_noc_memtype_m0_m2 = <TCSR_WIFI_NOC_MEMTYPE_M0_M2>;
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};
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usb2: usb2@60f8800 {
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status = "okay";
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};
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serial@78af000 {
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pinctrl-0 = <&serial_pins>;
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pinctrl-names = "default";
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status = "okay";
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};
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crypto@8e3a000 {
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status = "okay";
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};
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watchdog@b017000 {
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status = "okay";
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};
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ess-switch@c000000 {
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status = "okay";
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};
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edma@c080000 {
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status = "okay";
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};
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};
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gpio-keys {
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compatible = "gpio-keys";
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reset {
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label = "reset";
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gpios = <&tlmm 59 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_RESTART>;
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};
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};
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aliases {
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led-boot = &power;
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led-failsafe = &power;
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led-running = &power;
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led-upgrade = &power;
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};
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gpio-leds {
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compatible = "gpio-leds";
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red {
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label = "a42:red:status";
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gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "default-off";
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};
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power: green {
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label = "a42:green:status";
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gpios = <&tlmm 1 GPIO_ACTIVE_HIGH>;
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};
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blue {
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label = "a42:blue:status";
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gpios = <&tlmm 2 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "default-off";
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};
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};
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watchdog {
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compatible = "linux,wdt-gpio";
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gpios = <&tlmm 5 GPIO_ACTIVE_LOW>;
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hw_algo = "toggle";
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/* hw_margin_ms is actually 300s but driver limits it to 60s */
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hw_margin_ms = <60000>;
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always-running;
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};
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};
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&tlmm {
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serial_pins: serial_pinmux {
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mux {
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pins = "gpio60", "gpio61";
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function = "blsp_uart0";
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bias-disable;
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};
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};
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spi_0_pins: spi_0_pinmux {
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pin {
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function = "blsp_spi0";
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pins = "gpio55", "gpio56", "gpio57";
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drive-strength = <12>;
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bias-disable;
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};
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pin_cs {
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function = "gpio";
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pins = "gpio54";
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drive-strength = <2>;
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bias-disable;
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output-high;
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};
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};
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};
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&blsp_dma {
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status = "okay";
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};
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&spi_0 {
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pinctrl-0 = <&spi_0_pins>;
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pinctrl-names = "default";
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status = "okay";
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cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
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m25p80@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <24000000>;
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/* partitions are passed via bootloader */
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};
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};
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&cryptobam {
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status = "okay";
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};
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&gmac0 {
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qcom,phy_mdio_addr = <4>;
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qcom,poll_required = <1>;
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qcom,forced_speed = <1000>;
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qcom,forced_duplex = <1>;
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vlan_tag = <2 0x20>;
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};
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&gmac1 {
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qcom,phy_mdio_addr = <3>;
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qcom,poll_required = <1>;
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qcom,forced_speed = <1000>;
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qcom,forced_duplex = <1>;
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vlan_tag = <1 0x10>;
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};
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&usb2_hs_phy {
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status = "okay";
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};
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&wifi0 {
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status = "okay";
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qcom,ath10k-calibration-variant = "OM-A42";
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};
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&wifi1 {
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status = "okay";
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qcom,ath10k-calibration-variant = "OM-A42";
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};
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