motorola-rtwo: strip .dts to the minimum for early-panic bisection
Full .dts + fixed 7.2 kernel still resets in <2s with no output. Cut the .dts to SoC + regulators + debug UART + HS-peripheral USB only - no reserved-memory, no simple-framebuffer, no touch/SD/UFS/keys. If this reaches the initramfs the fault was in a removed node; if it also resets the problem is the kernel/config/boot image. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QF5HebjUsRaxbW4cBX6HJP
This commit is contained in:
Claude Sonnet 5
@@ -2,7 +2,7 @@
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maintainer="snlavaise <snlavaise@gmail.com>"
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pkgname=device-motorola-rtwo
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pkgver=1
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pkgrel=3
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pkgrel=4
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pkgdesc="Motorola Moto Edge 40 Pro"
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url="https://postmarketos.org"
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arch="aarch64"
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@@ -36,6 +36,6 @@ package() {
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}
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sha512sums="
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785cb3c8c9e56d78c63b6e0cce5c4eee429160220358cf76379dfde2badecedbb4d5d88472ded57852fc5dd8fa0dd827f6f4f9d88fd26fba956e2dd945a1260a deviceinfo
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beca2835f2ea99426eed39607259aab0b4ef119bd9855a961476b6fbca6e55a4d7985407d46067df760919814b8b97dd1f6a350c1f6f1a7ebdc0fb839e6cc0e7 deviceinfo
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c572e21cb0624b554a22a218b0c4faab9b6412654bed6bfef530f3068d076b21c573bd7f4b3ca65f510f8756f636a861191cce925ef49587db7d68d09558826c modules-initfs
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"
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@@ -23,7 +23,7 @@ deviceinfo_getty="ttyMSM0;115200"
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# splash buffer, so there should be an early console on the panel. If the
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# screen stays black, set this to "true" (and fix the framebuffer@ node).
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# There is no DRM/mdss yet, so no mode setting / backlight control.
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deviceinfo_no_framebuffer="false"
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deviceinfo_no_framebuffer="true"
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# Split the initramfs: a small base archive (fits in init_boot, 8 MB) plus a
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# separate initramfs-extra loaded from the rootfs later.
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@@ -5,7 +5,7 @@ maintainer="snlavaise <snlavaise@gmail.com>"
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_flavor="postmarketos-qcom-sm8550"
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pkgname=linux-$_flavor
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pkgver=7.2
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pkgrel=0
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pkgrel=1
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pkgdesc="Mainline kernel for Qualcomm SM8550 (Snapdragon 8 Gen 2) + Motorola rtwo"
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arch="aarch64"
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_carch="arm64"
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@@ -99,5 +99,5 @@ sha512sums="
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52d5aa7f94f6aa6141debf4ceb4fc7a2e75505a7cd38b8854e501be83c2b57863020f463f2fdb2fc93667e6cfe13274d077e5207a611e4797bd9404ee0e64c58 linux-postmarketos-qcom-sm8550-7.2.tar.gz
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f9ae52489f6b9e6fef64952943cd09732a5bef90a0e8765db03c256483028368687d6d5a1d80dd813a513e7e80d91f8b47f49b91cff67266b76f1d6275a7fea0 config-motorola-rtwo.aarch64
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ca36b981736b94d93120bea60d84614a5f943b0577a87ce0c650a7c065dc8b8b889eeee766b8fb941e15af4db5d426583d2d85e3e243faf89aa9cac472f78388 rtwo.config
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d3b10b54539c85eab2f200544710a63771518a1fb6aa9fed0d453a69f85de03c36d6da392e0671d6bbe0b79443169042779897b1c00c771a89a19d1540473693 sm8550-motorola-rtwo.dts
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0781703a9d4da45854c1472802753dca9baf3a44541f4cee19ee95d34b857b8fce329fbb3fa0871f19f19b86877ba7299361218b41e000fe82bd9219374b69bd sm8550-motorola-rtwo.dts
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"
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@@ -2,34 +2,17 @@
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/*
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* Motorola Moto Edge 40 Pro (codename "rtwo"), SM8550 / Snapdragon 8 Gen 2
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*
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* WIP mainline bring-up device tree for postmarketOS.
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* MINIMAL bring-up device tree: SoC + PMIC regulators + debug UART + USB
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* (high-speed peripheral). No reserved-memory, no framebuffer, no touch,
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* no SD/UFS, no keys - everything that could fault early is stripped.
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*
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* Hardware facts gathered from the stock LineageOS 23.2 sources and the live
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* DTB dumped from the device:
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* - board-id / model "rtwo", XT2301-x, PVT, UFS (KIOXIA 256 GB) at 1d84000
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* - debug UART: GENI SE7 @ac0000/a9c000 -> mainline &uart7 (qupv3_id_0)
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* - touchscreen: Goodix GT9916 on SPI SE4 (spi@a90000 -> &spi4),
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* reset TLMM24, irq TLMM25, avdd = pm8550 L9B, iovdd = pm8550 L10B
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* - keys: volume-up on pm8550 GPIO6, volume-down = PMIC resin, power = pwrkey
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* - SD card: sdhc_2, CD on pm8550 GPIO12, vmmc L9B, vqmmc L8B
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* - panel: CSOT/Tianma Novatek NT37705 / NT37701A, 1080x2400 DSC cmd-mode,
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* reset TLMM133, vdd L11B (1.23-1.28 V), vci L13B (3.0 V), vddio 1.8 V
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* - cont_splash framebuffer at 0xb8000000
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* - haptics: pm8550b (SoundWire), speakers: 2x WSA883x, WiFi/BT: WCN7850 "kiwi"
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*
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* Still TODO before this is a real port: DSI panel driver + &mdss, GPU zap
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* shader, modem/remoteprocs, WiFi/BT (PCIe), charger (pmic-glink battmgr),
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* NFC, fingerprint, camera (external wl2868c LDO on the i2c hub).
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*
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* Immediate goal: initramfs debug shell over USB (+ UART if wired), pstore
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* console via ramoops, and ideally the bootloader framebuffer.
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* If this reaches the initramfs (USB net / telnet works), the problem was
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* in the removed nodes; add them back one at a time. If this also resets
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* in <2s, the problem is the kernel/config/boot image, not the .dts.
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*/
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/dts-v1/;
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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/interrupt-controller/irq.h>
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#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
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#include "sm8550.dtsi"
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@@ -50,63 +33,7 @@
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};
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chosen {
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#address-cells = <2>;
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#size-cells = <2>;
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ranges;
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stdout-path = "serial0:115200n8";
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/*
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* Bootloader continuous-splash framebuffer, reused as an early
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* console (CONFIG_FB_SIMPLE). Needs no panel driver.
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*
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* Panel is 1080x2400 (NT37705). Format/base are a best guess
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* from the stock cont_splash / disp_rdump regions. If the screen
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* is garbled: try format "x8r8g8b8" -> "r5g6b5" (and stride
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* 1080*2) -> drop the node. If it is offset/torn, the stride is
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* wrong. If it shows briefly then freezes, the display clocks
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* got gated - add "clk_ignore_unused" to the kernel cmdline.
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*/
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framebuffer0: framebuffer@b8000000 {
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compatible = "simple-framebuffer";
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reg = <0x0 0xb8000000 0x0 (1080 * 2400 * 4)>;
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width = <1080>;
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height = <2400>;
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stride = <(1080 * 4)>;
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format = "x8r8g8b8";
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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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pinctrl-0 = <&vol_up_n>;
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pinctrl-names = "default";
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key-volume-up {
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label = "Volume Up";
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gpios = <&pm8550_gpios 6 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_VOLUMEUP>;
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debounce-interval = <15>;
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linux,can-disable;
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wakeup-source;
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};
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};
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reserved-memory {
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/* Bootloader crash/console log ring, kept across reboots */
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ramoops@ae000000 {
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compatible = "ramoops";
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reg = <0x0 0xae000000 0x0 0x60000>;
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console-size = <0x40000>;
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record-size = <0x20000>;
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no-map;
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};
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cont_splash_mem: cont-splash@b8000000 {
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reg = <0x0 0xb8000000 0x0 0x2b00000>;
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no-map;
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};
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};
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vph_pwr: vph-pwr-regulator {
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@@ -458,65 +385,16 @@
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};
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};
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&pm8550_gpios {
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vol_up_n: volume-up-n-state {
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pins = "gpio6";
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function = "normal";
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bias-pull-up;
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input-enable;
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power-source = <1>;
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};
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};
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&pm8550b_eusb2_repeater {
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vdd18-supply = <&vreg_l15b_1p8>;
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vdd3-supply = <&vreg_l5b_3p1>;
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};
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&pon_pwrkey {
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status = "okay";
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};
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&pon_resin {
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linux,code = <KEY_VOLUMEDOWN>;
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status = "okay";
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};
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/* GENI QUP0 wrapper: hosts the debug UART (SE7) and the touch SPI (SE4) */
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/* GENI QUP0 wrapper: hosts the debug UART (SE7) */
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&qupv3_id_0 {
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status = "okay";
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};
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&spi4 {
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status = "okay";
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touchscreen@0 {
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compatible = "goodix,gt9916";
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reg = <0>;
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spi-max-frequency = <15000000>;
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interrupt-parent = <&tlmm>;
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interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
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reset-gpios = <&tlmm 24 GPIO_ACTIVE_LOW>;
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avdd-supply = <&vreg_l9b_2p9>;
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vddio-supply = <&vreg_l10b_1p8>;
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touchscreen-size-x = <1080>;
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touchscreen-size-y = <2400>;
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};
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};
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&sdhc_2 {
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cd-gpios = <&pm8550_gpios 12 GPIO_ACTIVE_LOW>;
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vmmc-supply = <&vreg_l9b_2p9>;
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vqmmc-supply = <&vreg_l8b_1p8>;
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bus-width = <4>;
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no-sdio;
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no-mmc;
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status = "okay";
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};
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&sleep_clk {
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clock-frequency = <32000>;
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};
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@@ -525,29 +403,8 @@
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status = "okay";
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};
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&ufs_mem_hc {
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reset-gpios = <&tlmm 210 GPIO_ACTIVE_LOW>;
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vcc-supply = <&vreg_l17b_2p5>;
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vcc-max-microamp = <1300000>;
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vccq-supply = <&vreg_l1g_1p2>;
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vccq-max-microamp = <1200000>;
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vdd-hba-supply = <&vreg_l3g_1p2>;
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status = "okay";
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};
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&ufs_mem_phy {
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vdda-phy-supply = <&vreg_l1d_0p88>;
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vdda-pll-supply = <&vreg_l3e_1p2>;
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status = "okay";
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};
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&usb_1 {
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/*
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* High-speed peripheral only for bring-up (USB networking in the
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* initramfs). Drop the SuperSpeed PHY + the type-C role switch so dwc3
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* comes up without pmic-glink / a connector. Restore usb-role-switch,
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* the usb3-phy and &usb_dp_qmpphy once type-C is described.
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*/
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/* high-speed peripheral only, no type-C / SuperSpeed */
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dr_mode = "peripheral";
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maximum-speed = "high-speed";
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/delete-property/ usb-role-switch;
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