On 13 October 2014 23:42, Simon Glass sjg@chromium.org wrote:
We want the SPI flash probing feature to operate as a standard driver. Add a driver for the basic probing feature used by most boards. This will be activated by device_probe() as with any other driver.
The 'sf probe' command currently keeps track of the SPI slave that it last used. This doesn't work with driver model, since some other driver or system may have probed the device and have access to it too. On the other hand, if we try to probe a device twice the second probe is a nop with driver model.
Fix this by searching for the matching device, removing it, and then probing it again. This should work as expected regardless of other device activity.
Signed-off-by: Simon Glass sjg@chromium.org Reviewed-by: Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com
Changes in v4: None Changes in v3:
- Add a debug() in the probe method
- Make sure the old device is both removed and unbound in 'sf probe'
Changes in v2: None
common/cmd_sf.c | 25 ++++++++++++++++++ drivers/mtd/spi/sf_probe.c | 66 ++++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 89 insertions(+), 2 deletions(-)
Applied to u-boot-dm/master.