105bef466a
Sanitized research log, build/reproducibility docs, DTS, kernel configs, patches, initramfs sources, bootchain migration plans and test logs. B5 direct boot PASS; B6 modem lifecycle in progress. No dumps, NV/EFS, vendor firmware or device identifiers included.
84 lines
2.7 KiB
Diff
84 lines
2.7 KiB
Diff
--- dts/msm8916-jz08-aurora-emmc1.dts 2026-09-30 03:49:29.083717184 +0600
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+++ dts/msm8916-jz08-aurora-modem1.dts 2026-09-30 04:08:54.921612695 +0600
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@@ -1,7 +1,7 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Project Aurora — JZ08AU-XPA-7J-R3 (MSM8916, 512 MB, ST7735S SPI panel).
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- * RAM-BOOT EMMC1: USB1 + internal eMMC (sdhc_1) for READ-ONLY verification. Everything that could touch
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+ * RAM-BOOT MODEM1: EMMC1 + MPSS remoteproc (native Aurora firmware, rmtfs -r). No BAM-DMUX/WWAN/WCNSS. Everything that could touch
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* storage, radios or power management is explicitly disabled.
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*
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* Hardware facts from stock Aurora dtb_01 (see NOTES.md S2.1/S12):
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@@ -14,7 +14,7 @@
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#include "msm8916-pm8916.dtsi" /* + RPM regulators (USB PHY L7/L13) */
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/ {
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- model = "JZ08AU Aurora (RAM boot EMMC1)";
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+ model = "JZ08AU Aurora (RAM boot MODEM1)";
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compatible = "jz08au,aurora", "qcom,msm8916";
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chassis-type = "embedded";
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@@ -35,11 +35,11 @@
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status = "okay";
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};
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-/* --- RAM boot EMMC1 safety: no SD slot, no radios --- */
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+/* --- RAM boot MODEM1 safety: no SD slot, no Wi-Fi, no modem data plane --- */
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/* sdhc_1 (eMMC): enabled below, READ-ONLY enforced by initramfs (blockdev --setro) */
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&sdhc_2 { status = "disabled"; };
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/* usb: see peripheral block below */
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-&mpss { status = "disabled"; };
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+/* mpss: enabled below */
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&bam_dmux { status = "disabled"; };
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&bam_dmux_dma { status = "disabled"; };
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&wcnss { status = "disabled"; }; /* WCNSS/pronto remoteproc */
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@@ -72,3 +72,49 @@
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&sdhc_1 {
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status = "okay";
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};
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+
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+/*
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+ * MPSS (modem) remoteproc, native Aurora firmware from the RO-mounted modem FAT.
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+ * mpss_mem: stock Aurora "modem_adsp_region" base 0x86800000 size 78 MiB (0x4e00000);
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+ * Aurora modem.mdt load span 0x86800000..0x8b300000 (75 MiB), same as stock PIL log.
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+ * mba_mem: upstream dynamic 1 MiB. pll-supply (pm8916_l7), cx/mx rpmpd from msm8916(-pm8916).dtsi.
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+ * Driver has auto_boot = false: MSS starts only when rmtfs (-s) requests it.
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+ * BAM-DMUX stays disabled (no data plane at this stage).
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+ */
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+&mba_mem {
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+ status = "okay";
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+};
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+
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+&mpss_mem {
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+ reg = <0x0 0x86800000 0x0 0x4e00000>;
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+ status = "okay";
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+};
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+
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+&mpss {
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+ pinctrl-0 = <&sim_ctrl_default>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+};
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+
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+/*
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+ * SIM routing as found on stock Aurora (dtb_01 gpio-leds default-state and live
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+ * Android /sys/kernel/debug/gpio): gpio1 (sim3_switch) high, gpio20 (sim_hotdet),
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+ * gpio22 (sim1_switch), gpio23 (sim2_switch) low. Passive routing only.
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+ */
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+&tlmm {
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+ sim_ctrl_default: sim-ctrl-default-state {
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+ sim-low-pins {
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+ pins = "gpio20", "gpio22", "gpio23";
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+ function = "gpio";
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+ bias-disable;
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+ output-low;
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+ };
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+
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+ sim-high-pins {
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+ pins = "gpio1";
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+ function = "gpio";
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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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