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Message-Id: <20251017-an7583-eth-support-v3-13-f28319666667@kernel.org>
Date: Fri, 17 Oct 2025 11:06:22 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>,
Lorenzo Bianconi <lorenzo@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
devicetree@...r.kernel.org, Simon Horman <horms@...nel.org>
Subject: [PATCH net-next v3 13/13] net: airoha: Add AN7583 SoC support
Introduce support for AN7583 ethernet controller to airoha-eth dirver.
Reviewed-by: Simon Horman <horms@...nel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
drivers/net/ethernet/airoha/airoha_eth.c | 68 +++++++++++++++++++++++++++++---
drivers/net/ethernet/airoha/airoha_eth.h | 11 ++++++
drivers/net/ethernet/airoha/airoha_ppe.c | 3 ++
3 files changed, 77 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 4671f906a68c794d2ad05fbf5777fe22405c3d8f..8483ea02603e24de5eb37654452f8c2b21b9bff4 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -1684,10 +1684,8 @@ static int airoha_dev_set_macaddr(struct net_device *dev, void *p)
static int airhoha_set_gdm2_loopback(struct airoha_gdm_port *port)
{
- u32 val, pse_port, chan = port->id == AIROHA_GDM3_IDX ? 4 : 0;
struct airoha_eth *eth = port->qdma->eth;
- /* XXX: handle XSI_USB_PORT and XSI_PCE1_PORT */
- u32 nbq = port->id == AIROHA_GDM3_IDX ? 4 : 0;
+ u32 val, pse_port, chan, nbq;
int src_port;
/* Forward the traffic to the proper GDM port */
@@ -1699,6 +1697,8 @@ static int airhoha_set_gdm2_loopback(struct airoha_gdm_port *port)
/* Enable GDM2 loopback */
airoha_fe_wr(eth, REG_GDM_TXCHN_EN(2), 0xffffffff);
airoha_fe_wr(eth, REG_GDM_RXCHN_EN(2), 0xffff);
+
+ chan = port->id == AIROHA_GDM3_IDX ? airoha_is_7581(eth) ? 4 : 3 : 0;
airoha_fe_rmw(eth, REG_GDM_LPBK_CFG(2),
LPBK_CHAN_MASK | LPBK_MODE_MASK | LPBK_EN_MASK,
FIELD_PREP(LPBK_CHAN_MASK, chan) |
@@ -1713,6 +1713,8 @@ static int airhoha_set_gdm2_loopback(struct airoha_gdm_port *port)
airoha_fe_clear(eth, REG_FE_VIP_PORT_EN, BIT(2));
airoha_fe_clear(eth, REG_FE_IFC_PORT_EN, BIT(2));
+ /* XXX: handle XSI_USB_PORT and XSI_PCE1_PORT */
+ nbq = port->id == AIROHA_GDM3_IDX && airoha_is_7581(eth) ? 4 : 0;
src_port = eth->soc->ops.get_src_port_id(port, nbq);
if (src_port < 0)
return src_port;
@@ -1726,7 +1728,7 @@ static int airhoha_set_gdm2_loopback(struct airoha_gdm_port *port)
SP_CPORT_MASK(val),
FE_PSE_PORT_CDM2 << __ffs(SP_CPORT_MASK(val)));
- if (port->id != AIROHA_GDM3_IDX)
+ if (port->id != AIROHA_GDM3_IDX && airoha_is_7581(eth))
airoha_fe_rmw(eth, REG_SRC_PORT_FC_MAP6,
FC_ID_OF_SRC_PORT24_MASK,
FIELD_PREP(FC_ID_OF_SRC_PORT24_MASK, 2));
@@ -1895,6 +1897,22 @@ static bool airoha_dev_tx_queue_busy(struct airoha_queue *q, u32 nr_frags)
return index >= tail;
}
+static int airoha_get_fe_port(struct airoha_gdm_port *port)
+{
+ struct airoha_qdma *qdma = port->qdma;
+ struct airoha_eth *eth = qdma->eth;
+
+ switch (eth->soc->version) {
+ case 0x7583:
+ return port->id == AIROHA_GDM3_IDX ? FE_PSE_PORT_GDM3
+ : port->id;
+ case 0x7581:
+ default:
+ return port->id == AIROHA_GDM4_IDX ? FE_PSE_PORT_GDM4
+ : port->id;
+ }
+}
+
static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb,
struct net_device *dev)
{
@@ -1935,7 +1953,7 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb,
}
}
- fport = port->id == 4 ? FE_PSE_PORT_GDM4 : port->id;
+ fport = airoha_get_fe_port(port);
msg1 = FIELD_PREP(QDMA_ETH_TXMSG_FPORT_MASK, fport) |
FIELD_PREP(QDMA_ETH_TXMSG_METER_MASK, 0x7f);
@@ -3098,6 +3116,35 @@ static int airoha_en7581_get_src_port_id(struct airoha_gdm_port *port, int nbq)
return -EINVAL;
}
+static const char * const an7583_xsi_rsts_names[] = {
+ "xsi-mac",
+ "hsi0-mac",
+ "hsi1-mac",
+ "xfp-mac",
+};
+
+static int airoha_an7583_get_src_port_id(struct airoha_gdm_port *port, int nbq)
+{
+ switch (port->id) {
+ case 3:
+ /* 7583 SoC supports eth serdes on GDM3 port */
+ if (!nbq)
+ return HSGMII_LAN_7583_ETH_SRCPORT;
+ break;
+ case 4:
+ /* 7583 SoC supports PCIe and USB serdes on GDM4 port */
+ if (!nbq)
+ return HSGMII_LAN_7583_PCIE_SRCPORT;
+ if (nbq == 1)
+ return HSGMII_LAN_7583_USB_SRCPORT;
+ break;
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
static const struct airoha_eth_soc_data en7581_soc_data = {
.version = 0x7581,
.xsi_rsts_names = en7581_xsi_rsts_names,
@@ -3108,8 +3155,19 @@ static const struct airoha_eth_soc_data en7581_soc_data = {
},
};
+static const struct airoha_eth_soc_data an7583_soc_data = {
+ .version = 0x7583,
+ .xsi_rsts_names = an7583_xsi_rsts_names,
+ .num_xsi_rsts = ARRAY_SIZE(an7583_xsi_rsts_names),
+ .num_ppe = 1,
+ .ops = {
+ .get_src_port_id = airoha_an7583_get_src_port_id,
+ },
+};
+
static const struct of_device_id of_airoha_match[] = {
{ .compatible = "airoha,en7581-eth", .data = &en7581_soc_data },
+ { .compatible = "airoha,an7583-eth", .data = &an7583_soc_data },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, of_airoha_match);
diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h
index e09579da8c78a99ef07ee7eef7be3cd6c1b5be76..eb27a4ff51984ef376c6e94607ee2dc1a806488b 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.h
+++ b/drivers/net/ethernet/airoha/airoha_eth.h
@@ -73,6 +73,12 @@ enum {
HSGMII_LAN_7581_USB_SRCPORT,
};
+enum {
+ HSGMII_LAN_7583_ETH_SRCPORT = 0x16,
+ HSGMII_LAN_7583_PCIE_SRCPORT = 0x18,
+ HSGMII_LAN_7583_USB_SRCPORT,
+};
+
enum {
XSI_PCIE0_VIP_PORT_MASK = BIT(22),
XSI_PCIE1_VIP_PORT_MASK = BIT(23),
@@ -629,6 +635,11 @@ static inline bool airoha_is_7581(struct airoha_eth *eth)
return eth->soc->version == 0x7581;
}
+static inline bool airoha_is_7583(struct airoha_eth *eth)
+{
+ return eth->soc->version == 0x7583;
+}
+
bool airoha_is_valid_gdm_port(struct airoha_eth *eth,
struct airoha_gdm_port *port);
diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index eda95107cd1daf6ff00a85abc72313a509ed67e9..c373f21d95f5a610deae365c64bc589c21f5e1a0 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -37,6 +37,9 @@ static int airoha_ppe_get_num_stats_entries(struct airoha_ppe *ppe)
if (!IS_ENABLED(CONFIG_NET_AIROHA_FLOW_STATS))
return -EOPNOTSUPP;
+ if (airoha_is_7583(ppe->eth))
+ return -EOPNOTSUPP;
+
return PPE_STATS_NUM_ENTRIES;
}
--
2.51.0
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