diff options
| author | Stefan Roese <sr@denx.de> | 2017-04-24 09:48:02 +0200 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2017-05-17 17:13:06 +0800 |
| commit | 426f99fa98c3725fe0ca1eb8438d1215a2c6bd6b (patch) | |
| tree | 6efd5bcaf65a045220083f6c6ff96fb79f10adaa /include/dm | |
| parent | e98856fcff5adc64689c3d5597b0a36d867eec8f (diff) | |
dm: core: Add DM_FLAG_OS_PREPARE flag
This new flag can be added to DM device drivers, which need to do some
final configuration before U-Boot exits and the OS (e.g. Linux) is
started. The remove functions of those drivers will get called at
this stage to do these last-stage configuration steps.
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/device.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/dm/device.h b/include/dm/device.h index 079ec57003..df02e41df3 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -55,6 +55,12 @@ struct driver_info; #define DM_FLAG_ACTIVE_DMA (1 << 9) /* + * Call driver remove function to do some final configuration, before + * U-Boot exits and the OS is started + */ +#define DM_FLAG_OS_PREPARE (1 << 10) + +/* * One or multiple of these flags are passed to device_remove() so that * a selective device removal as specified by the remove-stage and the * driver flags can be done. @@ -66,10 +72,13 @@ enum { /* Remove devices with active DMA */ DM_REMOVE_ACTIVE_DMA = DM_FLAG_ACTIVE_DMA, + /* Remove devices which need some final OS preparation steps */ + DM_REMOVE_OS_PREPARE = DM_FLAG_OS_PREPARE, + /* Add more use cases here */ /* Remove devices with any active flag */ - DM_REMOVE_ACTIVE_ALL = DM_REMOVE_ACTIVE_DMA, + DM_REMOVE_ACTIVE_ALL = DM_REMOVE_ACTIVE_DMA | DM_REMOVE_OS_PREPARE, }; /** |