On Tue, Nov 16, 2021 at 7:53 AM Ramon Fried rfried.dev@gmail.com wrote:
On Sat, Nov 13, 2021 at 4:23 AM Marek Vasut marex@denx.de wrote:
Enable DWC IP clock in driver probe, so the MII access is possible even outside of active network transfers. This is particularly useful when using 'mii' or 'mdio' commands to explore PHY state, neither of which works with DWMAC currently due to the disabled clock.
Signed-off-by: Marek Vasut marex@denx.de Cc: Joe Hershberger joe.hershberger@ni.com Cc: Patrice Chotard patrice.chotard@foss.st.com Cc: Patrick Delaunay patrick.delaunay@foss.st.com Cc: Ramon Fried rfried.dev@gmail.com Cc: Stephen Warren swarren@nvidia.com
drivers/net/dwc_eth_qos.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c index 585101804d3..22dad5b2030 100644 --- a/drivers/net/dwc_eth_qos.c +++ b/drivers/net/dwc_eth_qos.c @@ -1045,16 +1045,10 @@ static int eqos_start(struct udevice *dev) eqos->tx_desc_idx = 0; eqos->rx_desc_idx = 0;
ret = eqos->config->ops->eqos_start_clks(dev);if (ret < 0) {pr_err("eqos_start_clks() failed: %d", ret);goto err;}ret = eqos->config->ops->eqos_start_resets(dev); if (ret < 0) { pr_err("eqos_start_resets() failed: %d", ret);goto err_stop_clks;
goto err; } udelay(10);@@ -1360,8 +1354,6 @@ err_shutdown_phy: phy_shutdown(eqos->phy); err_stop_resets: eqos->config->ops->eqos_stop_resets(dev); -err_stop_clks:
eqos->config->ops->eqos_stop_clks(dev);err: pr_err("FAILED: %d", ret); return ret; @@ -1416,7 +1408,6 @@ static void eqos_stop(struct udevice *dev) phy_shutdown(eqos->phy); } eqos->config->ops->eqos_stop_resets(dev);
eqos->config->ops->eqos_stop_clks(dev); debug("%s: OK\n", __func__);} @@ -1862,6 +1853,12 @@ static int eqos_probe(struct udevice *dev) goto err_remove_resources_core; }
ret = eqos->config->ops->eqos_start_clks(dev);if (ret < 0) {pr_err("eqos_start_clks() failed: %d", ret);goto err_remove_resources_tegra;}#ifdef CONFIG_DM_ETH_PHY eqos->mii = eth_phy_get_mdio_bus(dev); #endif @@ -1870,7 +1867,7 @@ static int eqos_probe(struct udevice *dev) if (!eqos->mii) { pr_err("mdio_alloc() failed"); ret = -ENOMEM;
goto err_remove_resources_tegra;
goto err_stop_clks; } eqos->mii->read = eqos_mdio_read; eqos->mii->write = eqos_mdio_write;@@ -1893,6 +1890,8 @@ static int eqos_probe(struct udevice *dev)
err_free_mdio: mdio_free(eqos->mii); +err_stop_clks:
eqos->config->ops->eqos_stop_clks(dev);err_remove_resources_tegra: eqos->config->ops->eqos_remove_resources(dev); err_remove_resources_core: @@ -1910,6 +1909,7 @@ static int eqos_remove(struct udevice *dev)
mdio_unregister(eqos->mii); mdio_free(eqos->mii);
eqos->config->ops->eqos_stop_clks(dev); eqos->config->ops->eqos_remove_resources(dev); eqos_probe_resources_core(dev);-- 2.33.0
Reviewed-by: Ramon Fried rfried.dev@gmail.com
Applied to u-boot-net/next, Thanks.