From b0cc1b846fcb310c0ac2f8cbeb4ed5947dc52912 Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Wed, 27 Feb 2019 15:36:44 +0100 Subject: dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay Acked-by: Jagan Teki --- common/spl/spl_spi.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'common/spl') diff --git a/common/spl/spl_spi.c b/common/spl/spl_spi.c index 8cd4830a39..9b74473377 100644 --- a/common/spl/spl_spi.c +++ b/common/spl/spl_spi.c @@ -77,6 +77,8 @@ static int spl_spi_load_image(struct spl_image_info *spl_image, /* * 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(CONFIG_SF_DEFAULT_BUS, -- cgit