[PATCH v2 1/3] spi: airoha-snfi: en7523: workaround flash damaging if UART_TXD was short to GND
Mark Brown
broonie at kernel.org
Sun Nov 16 13:47:53 PST 2025
On Sun, Nov 16, 2025 at 03:00:36PM +0300, Mikhail Kshevetskiy wrote:
> + "==================================================================\n"
> + "Detected booting in RESERVED mode (UART_TXD was short to GND).\n"
> + "This mode is known for incorrect DMA reading of some flashes.\n"
> + "Usage of DMA for flash operations will be disabled to prevent data\n"
> + "damage. Unplug your serial console and power cycle the board\n"
> + "to boot with full performance.\n"
> + "==================================================================\n");
Multi-line prints aren't idiomatic for the kernel, we usually have just
one line per print. If you want multiple lines use multiple prints
(like the trace_printk() warning).
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