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pmaports-rtwo/device/testing/linux-postmarketos-qcom-sm8550/sm8550-motorola-rtwo.dts
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snlavaiseandClaude Sonnet 5 988dd10251 motorola-rtwo: no earlycon, clean /chosen, framebuffer at root 
New hypotheses from re-comparing with the stock boot:
- 'earlycon' (bare) brings up uart7 in setup_arch(), before the clock
  framework. Stock uses console=null and almost certainly leaves the
  QUP0 clock gated -> touching uart7 MMIO faults before any console.
  Drop earlycon + the serial console; keep console=tty0 only.
- Also drop clk_ignore_unused / pd_ignore_unused (can break qcom power
  domain init) and ignore_loglevel stays for the fb console.
- Move the simple-framebuffer out of /chosen and drop the
  #address-cells override there, so the bootloader's /memory + initrd
  patching into /chosen is not disturbed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QF5HebjUsRaxbW4cBX6HJP
2026-09-09 00:10:58 -03:00

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// SPDX-License-Identifier: BSD-3-Clause
/*
* Motorola Moto Edge 40 Pro (codename "rtwo"), SM8550 / Snapdragon 8 Gen 2
*
* MINIMAL bring-up device tree: SoC + PMIC regulators + debug UART + USB
* (high-speed peripheral). No reserved-memory, no framebuffer, no touch,
* no SD/UFS, no keys - everything that could fault early is stripped.
*
* If this reaches the initramfs (USB net / telnet works), the problem was
* in the removed nodes; add them back one at a time. If this also resets
* in <2s, the problem is the kernel/config/boot image, not the .dts.
*/
/dts-v1/;
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
#include "sm8550.dtsi"
#include "pm8550.dtsi"
#include "pm8550b.dtsi"
#define PMK8550VE_SID 5
#include "pm8550ve.dtsi"
#include "pm8550vs.dtsi"
#include "pmk8550.dtsi"
/ {
model = "Motorola Moto Edge 40 Pro";
compatible = "motorola,rtwo", "qcom,sm8550";
chassis-type = "handset";
/*
* The Motorola bootloader (Qualcomm LK/ABL) selects the DTB by matching
* qcom,msm-id / qcom,board-id against the detected SoC + board. Without a
* match it passes no DTB and the kernel panics instantly with no console.
* Values from the DT the stock firmware hands to its own kernel; ignored
* by mainline.
*/
qcom,msm-id = <0x218 0x20000>, <0x207 0x20000>,
<0x207 0x10000>, <0x218 0x10000>;
qcom,board-id = <0x241 0xb1b0>;
aliases {
serial0 = &uart7;
};
/*
* The mainline kernel needs a /memory node. Android normally has the
* bootloader inject one; if the Motorola ABL does not do that for our
* DTB, the kernel panics before the console comes up (black screen,
* <2s reset). Bank layout copied verbatim from the DT the stock
* firmware runs (a zero-size bank was dropped).
*/
memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x00e00000>,
<0x0 0x811d0000 0x0 0x56e30000>,
<0x0 0xd8140000 0x0 0x00020000>,
<0x0 0xe1bb0000 0x0 0x1e450000>,
<0x8 0x80000000 0x0 0x39d00000>,
<0x8 0xb9f00000 0x0 0x01e00000>,
<0x8 0xc0000000 0x0 0xc0000000>,
<0x9 0x80000000 0x1 0x80000000>;
};
chosen {
/* Keep this minimal - the Motorola bootloader patches
* /memory, bootargs and initrd pointers in here. */
};
/*
* Bootloader continuous-splash framebuffer, reused as a console
* (CONFIG_FB_SIMPLE). No panel driver needed. Geometry is a guess
* (1080x2400, 32bpp) from the stock cont_splash region: garbled =
* wrong format/stride, black = the kernel dies before this probes.
*/
framebuffer0: framebuffer@b8000000 {
compatible = "simple-framebuffer";
reg = <0x0 0xb8000000 0x0 (1080 * 2400 * 4)>;
width = <1080>;
height = <2400>;
stride = <(1080 * 4)>;
format = "a8r8g8b8";
};
reserved-memory {
/*
* Match the stock ramoops layout exactly so a pmOS panic can be
* read back from stock Android via /sys/fs/pstore/console-ramoops-0.
*/
ramoops@ae000000 {
compatible = "ramoops";
reg = <0x0 0xae000000 0x0 0x60000>;
console-size = <0x40000>;
record-size = <0x20000>;
no-map;
};
cont_splash_mem: cont-splash@b8000000 {
reg = <0x0 0xb8000000 0x0 0x2b00000>;
no-map;
};
};
vph_pwr: vph-pwr-regulator {
compatible = "regulator-fixed";
regulator-name = "vph_pwr";
regulator-min-microvolt = <3700000>;
regulator-max-microvolt = <3700000>;
regulator-always-on;
regulator-boot-on;
};
};
&apps_rsc {
/*
* PM8550-family RPMh regulators. Rail voltage ranges are the SM8550
* reference-design values, which the rtwo downstream DT shares; the
* few board-specific ranges (L11B panel, L1E, L1G) and the consumer
* wiring (touch, SD, panel, UFS) come from the Motorola downstream DT
* and the DTB dumped from the device.
*/
regulators-0 {
compatible = "qcom,pm8550-rpmh-regulators";
qcom,pmic-id = "b";
vdd-bob1-supply = <&vph_pwr>;
vdd-bob2-supply = <&vph_pwr>;
vdd-l1-l4-l10-supply = <&vreg_s6g_1p8>;
vdd-l2-l13-l14-supply = <&vreg_bob1>;
vdd-l3-supply = <&vreg_s4g_1p3>;
vdd-l5-l16-supply = <&vreg_bob1>;
vdd-l6-l7-supply = <&vreg_bob1>;
vdd-l8-l9-supply = <&vreg_bob1>;
vdd-l11-supply = <&vreg_s4g_1p3>;
vdd-l12-supply = <&vreg_s6g_1p8>;
vdd-l15-supply = <&vreg_s6g_1p8>;
vdd-l17-supply = <&vreg_bob2>;
vreg_bob1: bob1 {
regulator-name = "vreg_bob1";
regulator-min-microvolt = <3296000>;
regulator-max-microvolt = <3960000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_bob2: bob2 {
regulator-name = "vreg_bob2";
regulator-min-microvolt = <2720000>;
regulator-max-microvolt = <3960000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l1b_1p8: ldo1 {
regulator-name = "vreg_l1b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l2b_3p0: ldo2 {
regulator-name = "vreg_l2b_3p0";
regulator-min-microvolt = <3008000>;
regulator-max-microvolt = <3008000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l5b_3p1: ldo5 {
regulator-name = "vreg_l5b_3p1";
regulator-min-microvolt = <3104000>;
regulator-max-microvolt = <3104000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l6b_1p8: ldo6 {
regulator-name = "vreg_l6b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3008000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l7b_1p8: ldo7 {
regulator-name = "vreg_l7b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3008000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l8b_1p8: ldo8 {
regulator-name = "vreg_l8b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3008000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l9b_2p9: ldo9 {
regulator-name = "vreg_l9b_2p9";
regulator-min-microvolt = <2960000>;
regulator-max-microvolt = <3008000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l10b_1p8: ldo10 {
regulator-name = "vreg_l10b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
/* panel VDD (Novatek NT37705) - board-specific range from downstream */
vreg_l11b_1p2: ldo11 {
regulator-name = "vreg_l11b_1p2";
regulator-min-microvolt = <1230000>;
regulator-max-microvolt = <1280000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l12b_1p8: ldo12 {
regulator-name = "vreg_l12b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l13b_3p0: ldo13 {
regulator-name = "vreg_l13b_3p0";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l14b_3p2: ldo14 {
regulator-name = "vreg_l14b_3p2";
regulator-min-microvolt = <3200000>;
regulator-max-microvolt = <3200000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l15b_1p8: ldo15 {
regulator-name = "vreg_l15b_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l16b_2p8: ldo16 {
regulator-name = "vreg_l16b_2p8";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l17b_2p5: ldo17 {
regulator-name = "vreg_l17b_2p5";
regulator-min-microvolt = <2504000>;
regulator-max-microvolt = <2504000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
};
regulators-1 {
compatible = "qcom,pm8550vs-rpmh-regulators";
qcom,pmic-id = "c";
vdd-l3-supply = <&vreg_s4e_0p9>;
vreg_l3c_0p91: ldo3 {
regulator-name = "vreg_l3c_0p9";
regulator-min-microvolt = <880000>;
regulator-max-microvolt = <912000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
};
regulators-2 {
compatible = "qcom,pm8550vs-rpmh-regulators";
qcom,pmic-id = "d";
vdd-l1-supply = <&vreg_s4e_0p9>;
vreg_l1d_0p88: ldo1 {
regulator-name = "vreg_l1d_0p88";
regulator-min-microvolt = <880000>;
regulator-max-microvolt = <920000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
};
regulators-3 {
compatible = "qcom,pm8550vs-rpmh-regulators";
qcom,pmic-id = "e";
vdd-l1-supply = <&vreg_s4e_0p9>;
vdd-l2-supply = <&vreg_s4e_0p9>;
vdd-l3-supply = <&vreg_s4g_1p3>;
vdd-s4-supply = <&vph_pwr>;
vdd-s5-supply = <&vph_pwr>;
vreg_s4e_0p9: smps4 {
regulator-name = "vreg_s4e_0p9";
regulator-min-microvolt = <904000>;
regulator-max-microvolt = <984000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_s5e_1p1: smps5 {
regulator-name = "vreg_s5e_1p1";
regulator-min-microvolt = <1080000>;
regulator-max-microvolt = <1120000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l1e_0p88: ldo1 {
regulator-name = "vreg_l1e_0p88";
regulator-min-microvolt = <880000>;
regulator-max-microvolt = <912000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l2e_0p9: ldo2 {
regulator-name = "vreg_l2e_0p9";
regulator-min-microvolt = <904000>;
regulator-max-microvolt = <970000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l3e_1p2: ldo3 {
regulator-name = "vreg_l3e_1p2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
};
regulators-4 {
compatible = "qcom,pm8550ve-rpmh-regulators";
qcom,pmic-id = "f";
vdd-l1-supply = <&vreg_s4e_0p9>;
vdd-l2-supply = <&vreg_s4e_0p9>;
vdd-l3-supply = <&vreg_s4e_0p9>;
vdd-s4-supply = <&vph_pwr>;
vreg_s4f_0p5: smps4 {
regulator-name = "vreg_s4f_0p5";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <700000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l1f_0p9: ldo1 {
regulator-name = "vreg_l1f_0p9";
regulator-min-microvolt = <912000>;
regulator-max-microvolt = <912000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l2f_0p88: ldo2 {
regulator-name = "vreg_l2f_0p88";
regulator-min-microvolt = <880000>;
regulator-max-microvolt = <912000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l3f_0p91: ldo3 {
regulator-name = "vreg_l3f_0p91";
regulator-min-microvolt = <880000>;
regulator-max-microvolt = <912000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
};
regulators-5 {
compatible = "qcom,pm8550vs-rpmh-regulators";
qcom,pmic-id = "g";
vdd-l1-supply = <&vreg_s4g_1p3>;
vdd-l2-supply = <&vreg_s4g_1p3>;
vdd-l3-supply = <&vreg_s4g_1p3>;
vdd-s1-supply = <&vph_pwr>;
vdd-s2-supply = <&vph_pwr>;
vdd-s3-supply = <&vph_pwr>;
vdd-s4-supply = <&vph_pwr>;
vdd-s5-supply = <&vph_pwr>;
vdd-s6-supply = <&vph_pwr>;
vreg_s1g_1p2: smps1 {
regulator-name = "vreg_s1g_1p2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1300000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_s2g_0p8: smps2 {
regulator-name = "vreg_s2g_0p8";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1000000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_s3g_0p7: smps3 {
regulator-name = "vreg_s3g_0p7";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <1004000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_s4g_1p3: smps4 {
regulator-name = "vreg_s4g_1p3";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1352000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_s5g_0p8: smps5 {
regulator-name = "vreg_s5g_0p8";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1004000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_s6g_1p8: smps6 {
regulator-name = "vreg_s6g_1p8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2000000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
/* UFS VCCQ - board-specific range from downstream */
vreg_l1g_1p2: ldo1 {
regulator-name = "vreg_l1g_1p2";
regulator-min-microvolt = <1144000>;
regulator-max-microvolt = <1256000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l2g_1p2: ldo2 {
regulator-name = "vreg_l2g_1p2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_l3g_1p2: ldo3 {
regulator-name = "vreg_l3g_1p2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
};
};
&pm8550b_eusb2_repeater {
vdd18-supply = <&vreg_l15b_1p8>;
vdd3-supply = <&vreg_l5b_3p1>;
};
/* GENI QUP0 wrapper: hosts the debug UART (SE7) */
&qupv3_id_0 {
status = "okay";
};
&sleep_clk {
clock-frequency = <32000>;
};
&uart7 {
status = "okay";
};
&usb_1 {
/* high-speed peripheral only, no type-C / SuperSpeed */
dr_mode = "peripheral";
maximum-speed = "high-speed";
/delete-property/ usb-role-switch;
/delete-property/ phys;
/delete-property/ phy-names;
phys = <&usb_1_hsphy>;
phy-names = "usb2-phy";
status = "okay";
};
&usb_1_hsphy {
vdd-supply = <&vreg_l1e_0p88>;
vdda12-supply = <&vreg_l3e_1p2>;
phys = <&pm8550b_eusb2_repeater>;
status = "okay";
};
&xo_board {
clock-frequency = <76800000>;
};
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