Align with cmd_sf, and try to rely on DT for spi speed and mode, and still fallback on spi_flash_probe() if it fails.
With the current scheme, spi_flash_probe() will be called with CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE with are set to 0 by default on DT platforms using DM_SPI_FLASH.
Like cmd_sf, keep the option to specify the speed and mode from the dfu_alt_mode string, but rely on DT properties if not specified.
Using CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE makes the SPIFC controller on Amlogic Meson G12B & SM1 hardware fail and is unable to recover until a system reboot.
Signed-off-by: Neil Armstrong neil.armstrong@linaro.org --- drivers/dfu/dfu_sf.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c index 7c1c0f9e2dc..8f7296adec6 100644 --- a/drivers/dfu/dfu_sf.c +++ b/drivers/dfu/dfu_sf.c @@ -123,6 +123,7 @@ static struct spi_flash *parse_dev(char *devstr) unsigned int mode = CONFIG_SF_DEFAULT_MODE; char *s, *endp; struct spi_flash *dev; + bool use_dt = true;
s = strsep(&devstr, ":"); if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) { @@ -143,6 +144,8 @@ static struct spi_flash *parse_dev(char *devstr) printf("Invalid SPI speed %s\n", s); return NULL; } + if (IS_ENABLED(CONFIG_DM_SPI_FLASH)) + use_dt = false; }
s = strsep(&devstr, ":"); @@ -152,9 +155,20 @@ static struct spi_flash *parse_dev(char *devstr) printf("Invalid SPI mode %s\n", s); return NULL; } + if (IS_ENABLED(CONFIG_DM_SPI_FLASH)) + use_dt = false; }
- dev = spi_flash_probe(bus, cs, speed, mode); + if (IS_ENABLED(CONFIG_DM_SPI_FLASH) && use_dt) { + struct udevice *new; + + if (!spi_flash_probe_bus_cs(bus, cs, &new)) + dev = dev_get_uclass_priv(new); + else + dev = NULL; + } else { + dev = spi_flash_probe(bus, cs, speed, mode); + } if (!dev) { printf("Failed to create SPI flash at %u:%u:%u:%u\n", bus, cs, speed, mode);