[PATCH v7 2/3] net: dsa: mv88e6xxx: add support for MV88E6020 switch

Lukasz Majewski
2023-05-23T14:30:15Z

From: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>

A mv88e6250 family (i.e. "LinkStreet") switch with 2 PHY and RMII
ports and no PTP support.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Lukasz Majewski <lukma@denx.de>
---
Changes for v2:
- Add S-o-B
- Update commit message
- Add information about max packet size (2048 B)

Changes for v3:
- None

Changes for v4:
- Update the num_ports and num_internal_phys to be in sync with
88e6020 documentation

Changes for v5:
- None

Changes for v6:
- Reorder patches for better readiness

Changes for v7:
- Provide just support for this IC (remove the part with setting
max frame info as it is not needed anymore)
---
drivers/net/dsa/mv88e6xxx/chip.c | 20 ++++++++++++++++++++
drivers/net/dsa/mv88e6xxx/chip.h | 1 +
drivers/net/dsa/mv88e6xxx/port.h | 1 +
3 files changed, 22 insertions(+)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index b5e43dd40431..9cb76a5b8ff5 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -5643,6 +5643,26 @@ static const struct mv88e6xxx_ops mv88e6393x_ops = {
};

static const struct mv88e6xxx_info mv88e6xxx_table[] = {
+ [MV88E6020] = {
+ .prod_num = MV88E6XXX_PORT_SWITCH_ID_PROD_6020,
+ .family = MV88E6XXX_FAMILY_6250,
+ .name = "Marvell 88E6020",
+ .num_databases = 64,
+ .num_ports = 4,
+ .num_internal_phys = 2,
+ .max_vid = 4095,
+ .port_base_addr = 0x8,
+ .phy_base_addr = 0x0,
+ .global1_addr = 0xf,
+ .global2_addr = 0x7,
+ .age_time_coeff = 15000,
+ .g1_irqs = 9,
+ .g2_irqs = 5,
+ .atu_move_port_mask = 0xf,
+ .dual_chip = true,
+ .ops = &mv88e6250_ops,
+ },
+
[MV88E6085] = {
.prod_num = MV88E6XXX_PORT_SWITCH_ID_PROD_6085,
.family = MV88E6XXX_FAMILY_6097,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index da6e1339f809..4cfb16375deb 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -54,6 +54,7 @@ enum mv88e6xxx_frame_mode {

/* List of supported models */
enum mv88e6xxx_model {
+ MV88E6020,
MV88E6085,
MV88E6095,
MV88E6097,
diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index d19b6303b91f..56efba08abdc 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -111,6 +111,7 @@
/* Offset 0x03: Switch Identifier Register */
#define MV88E6XXX_PORT_SWITCH_ID 0x03
#define MV88E6XXX_PORT_SWITCH_ID_PROD_MASK 0xfff0
+#define MV88E6XXX_PORT_SWITCH_ID_PROD_6020 0x0200
#define MV88E6XXX_PORT_SWITCH_ID_PROD_6085 0x04a0
#define MV88E6XXX_PORT_SWITCH_ID_PROD_6095 0x0950
#define MV88E6XXX_PORT_SWITCH_ID_PROD_6097 0x0990
--
2.20.1