All the currently supported chips have .num_databases either 256 or
4096, so this patch does not change behaviour for any of those. The
mv88e6250, however, has .num_databases == 64, and it does not put the
upper two bits in ATU control 13:12, but rather in ATU Operation
9:8. So change the logic to prepare for supporting mv88e6250.
Reviewed-by: Andrew Lunn <and...@lunn.ch>
Signed-off-by: Rasmus Villemoes <rasmus.villem...@prevas.dk>
---
drivers/net/dsa/mv88e6xxx/global1_atu.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/dsa/mv88e6xxx/global1_atu.c
b/drivers/net/dsa/mv88e6xxx/global1_atu.c
index ea243840ee0f..1ae680bc0eff 100644
--- a/drivers/net/dsa/mv88e6xxx/global1_atu.c
+++ b/drivers/net/dsa/mv88e6xxx/global1_atu.c
@@ -94,7 +94,7 @@ static int mv88e6xxx_g1_atu_op(struct mv88e6xxx_chip *chip,
u16 fid, u16 op)
if (err)
return err;
} else {
- if (mv88e6xxx_num_databases(chip) > 16) {
+ if (mv88e6xxx_num_databases(chip) > 64) {
/* ATU DBNum[7:4] are located in ATU Control 15:12 */
err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_CTL,
&val);
@@ -106,6 +106,9 @@ static int mv88e6xxx_g1_atu_op(struct mv88e6xxx_chip *chip,
u16 fid, u16 op)
val);
if (err)
return err;
+ } else if (mv88e6xxx_num_databases(chip) > 16) {
+ /* ATU DBNum[5:4] are located in ATU Operation 9:8 */
+ op |= (fid & 0x30) << 4;
}
/* ATU DBNum[3:0] are located in ATU Operation 3:0 */
--
2.20.1
