Certain platform wants specific GbE controller instance to be in PHY-less
mode, i.e. to be used for 1000BASE-X connection for network switch.
Tested-by: Emilio Riva <[email protected]>
Signed-off-by: Ong Boon Leong <[email protected]>
---
.../net/ethernet/stmicro/stmmac/dwmac-intel.c | 64 +++++++++++++++++++
1 file changed, 64 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 265d39acdd0..9c9577fc15d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -24,6 +24,8 @@ struct intel_priv_data {
struct stmmac_pci_func_data {
unsigned int func;
int phy_addr;
+ phy_interface_t phy_interface;
+ unsigned int phyless;
};
struct stmmac_pci_dmi_data {
@@ -439,10 +441,65 @@ static void common_default_data(struct plat_stmmacenet_data *plat)
plat->rx_queues_cfg[0].pkt_route = 0x0;
}
+static const struct stmmac_pci_func_data ericsson_phyless_func_data[] = {
+ {
+ .func = 2,
+ .phy_interface = PHY_INTERFACE_MODE_1000BASEX,
+ .phyless = true,
+ },
+};
+
+static const struct stmmac_pci_dmi_data ericsson_phyless_dmi_data = {
+ .func = ericsson_phyless_func_data,
+ .nfuncs = ARRAY_SIZE(ericsson_phyless_func_data),
+};
+
+static const struct dmi_system_id intel_mgbe_pci_dmi[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Ericsson"),
+ DMI_MATCH(DMI_BOARD_NAME, "SMARC-SXEL"),
+ },
+ .driver_data = (void *)&ericsson_phyless_dmi_data,
+ },
+ {}
+};
+
+static bool stmmac_pci_find_phyless(struct pci_dev *pdev,
+ const struct dmi_system_id *dmi_list,
+ phy_interface_t *phy_interface,
+ unsigned int *phyless)
+{
+ const struct stmmac_pci_func_data *func_data;
+ const struct stmmac_pci_dmi_data *dmi_data;
+ const struct dmi_system_id *dmi_id;
+ int func = PCI_FUNC(pdev->devfn);
+ size_t n;
+
+ dmi_id = dmi_first_match(dmi_list);
+ if (!dmi_id)
+ return false;
+
+ dmi_data = dmi_id->driver_data;
+ func_data = dmi_data->func;
+
+ for (n = 0; n < dmi_data->nfuncs; n++, func_data++)
+ if (func_data->func == func) {
+ *phy_interface = func_data->phy_interface;
+ *phyless = func_data->phyless;
+ return true;
+ }
+
+ return false;
+}
+
static int intel_mgbe_common_data(struct pci_dev *pdev,
struct plat_stmmacenet_data *plat)
{
+ phy_interface_t phy_interface;
+ unsigned int phyless;
char clk_name[20];
+ bool found;
int ret;
int i;
@@ -559,6 +616,13 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
/* Use the last Rx queue */
plat->vlan_fail_q = plat->rx_queues_to_use - 1;
+ found = stmmac_pci_find_phyless(pdev, intel_mgbe_pci_dmi,
+ &phy_interface, &phyless);
+ if (found) {
+ plat->mdio_bus_data->phyless = phyless;
+ plat->phy_interface = phy_interface;
+ }
+
/* Intel mgbe SGMII interface uses pcs-xcps */
if (plat->phy_interface == PHY_INTERFACE_MODE_SGMII ||
plat->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
--
2.25.1