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| author |   Rasmus Villemoes <rasmus.villemoes@prevas.dk> | 2019-06-04 07:34:24 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-04 20:07:56 -0700 |
| commit | f30a19b828c645cdde1e7a7733dce1cab8bcb25a (patch) | |
| tree | b08ef587db6259666dbb41c55e3ae0f598668851 /tools/perf/scripts/python | |
| parent | net: dsa: mv88e6xxx: add mv88e6250_g1_ieee_pri_map (diff) | |
| download | linux-dev-f30a19b828c645cdde1e7a7733dce1cab8bcb25a.tar.xz linux-dev-f30a19b828c645cdde1e7a7733dce1cab8bcb25a.zip | |
net: dsa: mv88e6xxx: introduce support for two chips using direct smi addressing
The 88e6250 (as well as 6220, 6071, 6070, 6020) do not support
multi-chip (indirect) addressing. However, one can still have two of
them on the same mdio bus, since the device only uses 16 of the 32
possible addresses, either addresses 0x00-0x0F or 0x10-0x1F depending
on the ADDR4 pin at reset [since ADDR4 is internally pulled high, the
latter is the default].
In order to prepare for supporting the 88e6250 and friends, introduce
mv88e6xxx_info::dual_chip to allow having a non-zero sw_addr while
still using direct addressing.
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions