snlavaiseandClaude Sonnet 5
2b3bae0a49
The device resets right after 'fastboot boot' with no output. Add tools to see why: - rtwo.config kernel fragment: PSTORE_RAM=y + PSTORE_CONSOLE=y (capture the kernel log in ramoops at 0xae000000, readable afterwards from stock Android or a later pmOS boot), QCOM_WDT=y (pet the APSS watchdog early in case the bootloader armed it), FB_SIMPLE/FRAMEBUFFER_CONSOLE on. - .dts: simple-framebuffer at 0xb8000000 reworked (x8r8g8b8, 1080x2400) - reuses the bootloader framebuffer, no panel driver needed. - deviceinfo cmdline: console=tty0 (framebuffer console), ignore_loglevel, clk_ignore_unused + pd_ignore_unused (keep the bootloader display path powered so the framebuffer does not freeze). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QF5HebjUsRaxbW4cBX6HJP
32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
# Extra kernel config for the Motorola rtwo bring-up.
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# Merged on top of defconfig + pmos.config + devices.config.
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# Purpose: get diagnostic output on a device with no working display/UART yet.
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# --- pstore / ramoops -------------------------------------------------------
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# Capture the kernel console into the reserved ramoops region (0xae000000,
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# same address the stock firmware uses) so that after a failed boot the log
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# can be read back - from a later pmOS boot, or from stock Android
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# (/sys/fs/pstore/console-ramoops-0).
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CONFIG_PSTORE=y
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CONFIG_PSTORE_RAM=y
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CONFIG_PSTORE_CONSOLE=y
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CONFIG_PSTORE_PMSG=y
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CONFIG_PSTORE_COMPRESS=y
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# --- watchdog -------------------------------------------------------------
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# The bootloader may hand off with the APSS watchdog armed; build the driver
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# in so the kernel starts petting it early instead of getting reset.
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CONFIG_QCOM_WDT=y
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# --- framebuffer console -------------------------------------------------
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# Show the boot log on the panel by reusing the bootloader's framebuffer
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# (simple-framebuffer node in the .dts). No panel driver required.
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CONFIG_FB=y
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CONFIG_FB_SIMPLE=y
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CONFIG_FRAMEBUFFER_CONSOLE=y
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CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
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# --- misc bring-up aids -------------------------------------------------
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CONFIG_MAGIC_SYSRQ=y
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CONFIG_LOG_BUF_SHIFT=18
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