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net: introduce MDIO DM class for MDIO devices

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Adds UCLASS_MDIO DM class supporting MDIO buses that are probed as
stand-alone devices.  Useful in particular for systems that support
DM_ETH and have a stand-alone MDIO hardware block shared by multiple
Ethernet interfaces.

Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Alex Marginean
2019-06-03 19:10:30 +03:00
committed by Joe Hershberger
parent 149468699e
commit c3452b50c3
6 changed files with 184 additions and 0 deletions
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include/dm/uclass-id.h
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@@ -58,6 +58,7 @@ enum uclass_id {
UCLASS_LPC, /* x86 'low pin count' interface */
UCLASS_MAILBOX, /* Mailbox controller */
UCLASS_MASS_STORAGE, /* Mass storage device */
UCLASS_MDIO, /* MDIO bus */
UCLASS_MISC, /* Miscellaneous device */
UCLASS_MMC, /* SD / MMC card or chip */
UCLASS_MOD_EXP, /* RSA Mod Exp device */