On Thursday 04 August 2022 16:06:30 Tony Dinh wrote:
Hi Pali,
Follow up on the topic of slow/fast SPL SPI loading.
common/spl/spl_spi.c /* * Load U-Boot image from SPI flash into RAM * In DM mode: defaults speed and mode will be * taken from DT when available */ flash = spi_flash_probe(sf_bus, sf_cs, CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE); if (!flash) { puts("SPI probe failed.\n"); return -ENODEV; }
So that spi-max-frequency = <50000000> in the DTS is not used in the probe.
Based on that comment, spi_flash_probe() function should read spi-max-frequency from device tree when DM mode is enabled. And fallback to CONFIG_SF_DEFAULT_SPEED value.
Probably there is a bug in DM spi_flash_probe() function implementation...