diff options
| author | Roger Quadros <rogerq@kernel.org> | 2022-11-04 15:23:08 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-11-07 12:20:03 +0000 |
| commit | eadb434374075d3a09bcd983d340dad8d6a5138a (patch) | |
| tree | 7069777141d57b2cf188665b571f022b5697ae35 | |
| parent | fd23df72f2be317d38d9fde0a8996b8e7454fd2a (diff) | |
net: ethernet: ti: cpsw_ale: Add cpsw_ale_restore() helper
This can be used by device driver to restore ALE context.
The data produced by cpsw_ale_dump() can be passed to
cpsw_ale_restore().
This is required as on certain platforms the ALE context
is lost on low power suspend/resume.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw_ale.c | 10 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw_ale.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c index 231370e9a801..0c5e783e574c 100644 --- a/drivers/net/ethernet/ti/cpsw_ale.c +++ b/drivers/net/ethernet/ti/cpsw_ale.c @@ -1452,6 +1452,16 @@ void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data) } } +void cpsw_ale_restore(struct cpsw_ale *ale, u32 *data) +{ + int i; + + for (i = 0; i < ale->params.ale_entries; i++) { + cpsw_ale_write(ale, i, data); + data += ALE_ENTRY_WORDS; + } +} + u32 cpsw_ale_get_num_entries(struct cpsw_ale *ale) { return ale ? ale->params.ale_entries : 0; diff --git a/drivers/net/ethernet/ti/cpsw_ale.h b/drivers/net/ethernet/ti/cpsw_ale.h index aba4572cfa3b..6779ee111d57 100644 --- a/drivers/net/ethernet/ti/cpsw_ale.h +++ b/drivers/net/ethernet/ti/cpsw_ale.h @@ -127,6 +127,7 @@ int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control); int cpsw_ale_control_set(struct cpsw_ale *ale, int port, int control, int value); void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data); +void cpsw_ale_restore(struct cpsw_ale *ale, u32 *data); u32 cpsw_ale_get_num_entries(struct cpsw_ale *ale); static inline int cpsw_ale_get_vlan_p0_untag(struct cpsw_ale *ale, u16 vid) |