net: ti: icssg-prueth: am65x SR2.0 add 10M full duplex support

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For AM65x SR2.0 it's required to enable IEP1 in raw 64bit mode which is
used by PRU FW to monitor the link and apply w/a for 10M link issue.
Note. No public errata available yet.

Without this w/a the PRU FW will stuck if link state changes under TX
traffic pressure.

Hence, add support for 10M full duplex for AM65x SR2.0:
 - add new IEP API to enable IEP, but without PTP support
 - add pdata quirk_10m_link_issue to enable 10M link issue w/a.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Grygorii Strashko 2023-08-24 17:16:18 +05:30 • committed by David S. Miller

parent 186734c158

commit 443a2367ba

5 changed files with 62 additions and 2 deletions

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26

drivers/net/ethernet/ti/icssg/icss_iep.c

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2

drivers/net/ethernet/ti/icssg/icss_iep.h

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7

drivers/net/ethernet/ti/icssg/icssg_config.c

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27

drivers/net/ethernet/ti/icssg/icssg_prueth.c

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2

drivers/net/ethernet/ti/icssg/icssg_prueth.h

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