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path: root/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c74
1 files changed, 64 insertions, 10 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 36942f5a6a53..433a84239a68 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -12,10 +12,6 @@
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
The full GNU General Public License is included in this distribution in
the file called "COPYING".
@@ -121,7 +117,6 @@ static struct stmmac_axi *stmmac_axi_setup(struct platform_device *pdev)
axi->axi_lpi_en = of_property_read_bool(np, "snps,lpi_en");
axi->axi_xit_frm = of_property_read_bool(np, "snps,xit_frm");
axi->axi_kbbe = of_property_read_bool(np, "snps,axi_kbbe");
- axi->axi_axi_all = of_property_read_bool(np, "snps,axi_all");
axi->axi_fb = of_property_read_bool(np, "snps,axi_fb");
axi->axi_mb = of_property_read_bool(np, "snps,axi_mb");
axi->axi_rb = of_property_read_bool(np, "snps,axi_rb");
@@ -181,10 +176,19 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
mdio = false;
}
- /* If snps,dwmac-mdio is passed from DT, always register the MDIO */
- for_each_child_of_node(np, plat->mdio_node) {
- if (of_device_is_compatible(plat->mdio_node, "snps,dwmac-mdio"))
- break;
+ /* exception for dwmac-dwc-qos-eth glue logic */
+ if (of_device_is_compatible(np, "snps,dwc-qos-ethernet-4.10")) {
+ plat->mdio_node = of_get_child_by_name(np, "mdio");
+ } else {
+ /**
+ * If snps,dwmac-mdio is passed from DT, always register
+ * the MDIO
+ */
+ for_each_child_of_node(np, plat->mdio_node) {
+ if (of_device_is_compatible(plat->mdio_node,
+ "snps,dwmac-mdio"))
+ break;
+ }
}
if (plat->mdio_node) {
@@ -249,6 +253,9 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
plat->force_sf_dma_mode =
of_property_read_bool(np, "snps,force_sf_dma_mode");
+ plat->en_tx_lpi_clockgating =
+ of_property_read_bool(np, "snps,en-tx-lpi-clockgating");
+
/* Set the maxmtu to a default of JUMBO_LEN in case the
* parameter is not present in the device tree.
*/
@@ -333,7 +340,54 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
plat->axi = stmmac_axi_setup(pdev);
+ /* clock setup */
+ plat->stmmac_clk = devm_clk_get(&pdev->dev,
+ STMMAC_RESOURCE_NAME);
+ if (IS_ERR(plat->stmmac_clk)) {
+ dev_warn(&pdev->dev, "Cannot get CSR clock\n");
+ plat->stmmac_clk = NULL;
+ }
+ clk_prepare_enable(plat->stmmac_clk);
+
+ plat->pclk = devm_clk_get(&pdev->dev, "pclk");
+ if (IS_ERR(plat->pclk)) {
+ if (PTR_ERR(plat->pclk) == -EPROBE_DEFER)
+ goto error_pclk_get;
+
+ plat->pclk = NULL;
+ }
+ clk_prepare_enable(plat->pclk);
+
+ /* Fall-back to main clock in case of no PTP ref is passed */
+ plat->clk_ptp_ref = devm_clk_get(&pdev->dev, "clk_ptp_ref");
+ if (IS_ERR(plat->clk_ptp_ref)) {
+ plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk);
+ plat->clk_ptp_ref = NULL;
+ dev_warn(&pdev->dev, "PTP uses main clock\n");
+ } else {
+ clk_prepare_enable(plat->clk_ptp_ref);
+ plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref);
+ dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate);
+ }
+
+ plat->stmmac_rst = devm_reset_control_get(&pdev->dev,
+ STMMAC_RESOURCE_NAME);
+ if (IS_ERR(plat->stmmac_rst)) {
+ if (PTR_ERR(plat->stmmac_rst) == -EPROBE_DEFER)
+ goto error_hw_init;
+
+ dev_info(&pdev->dev, "no reset control found\n");
+ plat->stmmac_rst = NULL;
+ }
+
return plat;
+
+error_hw_init:
+ clk_disable_unprepare(plat->pclk);
+error_pclk_get:
+ clk_disable_unprepare(plat->stmmac_clk);
+
+ return ERR_PTR(-EPROBE_DEFER);
}
/**
@@ -357,7 +411,7 @@ void stmmac_remove_config_dt(struct platform_device *pdev,
struct plat_stmmacenet_data *
stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
{
- return ERR_PTR(-ENOSYS);
+ return ERR_PTR(-EINVAL);
}
void stmmac_remove_config_dt(struct platform_device *pdev,