From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Vinod Koul <vkoul@kernel.org>,
Bhupesh Sharma <bhupesh.sharma@linaro.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Jose Abreu <joabreu@synopsys.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Andrew Halaney <ahalaney@redhat.com>
Cc: netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: [RESEND PATCH v2 08/14] net: stmmac: dwmac-qcom-ethqos: add support for the optional serdes phy
Date: Mon, 19 Jun 2023 11:23:56 +0200 [thread overview]
Message-ID: <20230619092402.195578-9-brgl@bgdev.pl> (raw)
In-Reply-To: <20230619092402.195578-1-brgl@bgdev.pl>
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
On sa8775p platforms, there's a SGMII SerDes PHY between the MAC and
external PHY that we need to enable and configure.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
.../stmicro/stmmac/dwmac-qcom-ethqos.c | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index ec3bbd199501..042733b5e80b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -6,6 +6,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/phy.h>
+#include <linux/phy/phy.h>
#include <linux/property.h>
#include "stmmac.h"
@@ -93,6 +94,7 @@ struct qcom_ethqos {
unsigned int rgmii_clk_rate;
struct clk *rgmii_clk;
+ struct phy *serdes_phy;
unsigned int speed;
const struct ethqos_emac_por *por;
@@ -565,6 +567,30 @@ static void ethqos_fix_mac_speed(void *priv, unsigned int speed)
ethqos_configure(ethqos);
}
+static int qcom_ethqos_serdes_powerup(struct net_device *ndev, void *priv)
+{
+ struct qcom_ethqos *ethqos = priv;
+ int ret;
+
+ ret = phy_init(ethqos->serdes_phy);
+ if (ret)
+ return ret;
+
+ ret = phy_power_on(ethqos->serdes_phy);
+ if (ret)
+ return ret;
+
+ return phy_set_speed(ethqos->serdes_phy, ethqos->speed);
+}
+
+static void qcom_ethqos_serdes_powerdown(struct net_device *ndev, void *priv)
+{
+ struct qcom_ethqos *ethqos = priv;
+
+ phy_power_off(ethqos->serdes_phy);
+ phy_exit(ethqos->serdes_phy);
+}
+
static int ethqos_clks_config(void *priv, bool enabled)
{
struct qcom_ethqos *ethqos = priv;
@@ -650,6 +676,12 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
if (ret)
goto out_config_dt;
+ ethqos->serdes_phy = devm_phy_optional_get(dev, "serdes");
+ if (IS_ERR(ethqos->serdes_phy)) {
+ ret = PTR_ERR(ethqos->serdes_phy);
+ goto out_config_dt;
+ }
+
ethqos->speed = SPEED_1000;
ethqos_update_rgmii_clk(ethqos, SPEED_1000);
ethqos_set_func_clk_en(ethqos);
@@ -665,6 +697,11 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
if (of_device_is_compatible(np, "qcom,qcs404-ethqos"))
plat_dat->rx_clk_runs_in_lpi = 1;
+ if (ethqos->serdes_phy) {
+ plat_dat->serdes_powerup = qcom_ethqos_serdes_powerup;
+ plat_dat->serdes_powerdown = qcom_ethqos_serdes_powerdown;
+ }
+
ret = stmmac_dvr_probe(dev, plat_dat, &stmmac_res);
if (ret)
goto out_config_dt;
--
2.39.2
next prev parent reply other threads:[~2023-06-19 9:25 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-19 9:23 [RESEND PATCH net-next v2 00/14] net: stmmac: dwmac-qcom-ethqos: add support for EMAC4 Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 01/14] net: stmmac: dwmac-qcom-ethqos: shrink clock code with devres Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 02/14] net: stmmac: dwmac-qcom-ethqos: rename a label in probe() Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 03/14] net: stmmac: dwmac-qcom-ethqos: tweak the order of local variables Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 04/14] net: stmmac: dwmac-qcom-ethqos: use a helper variable for &pdev->dev Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 05/14] net: stmmac: dwmac-qcom-ethqos: add missing include Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 06/14] net: stmmac: dwmac-qcom-ethqos: add a newline between headers Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 07/14] net: stmmac: dwmac-qcom-ethqos: remove stray space Bartosz Golaszewski
2023-06-19 9:23 ` Bartosz Golaszewski [this message]
2023-06-19 9:23 ` [RESEND PATCH v2 09/14] net: stmmac: dwmac-qcom-ethqos: add support for the phyaux clock Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 10/14] net: stmmac: dwmac-qcom-ethqos: prepare the driver for more PHY modes Bartosz Golaszewski
2023-06-19 9:23 ` [RESEND PATCH v2 11/14] net: stmmac: dwmac-qcom-ethqos: add support for SGMII Bartosz Golaszewski
2023-06-19 9:24 ` [RESEND PATCH v2 12/14] net: stmmac: add new switch to struct plat_stmmacenet_data Bartosz Golaszewski
2023-06-19 9:24 ` [RESEND PATCH v2 13/14] dt-bindings: net: qcom,ethqos: add description for sa8775p Bartosz Golaszewski
2023-06-19 9:24 ` [RESEND PATCH v2 14/14] net: stmmac: dwmac-qcom-ethqos: add support for emac4 on sa8775p platforms Bartosz Golaszewski
2023-06-21 3:50 ` [RESEND PATCH net-next v2 00/14] net: stmmac: dwmac-qcom-ethqos: add support for EMAC4 patchwork-bot+netdevbpf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230619092402.195578-9-brgl@bgdev.pl \
--to=brgl@bgdev.pl \
--cc=agross@kernel.org \
--cc=ahalaney@redhat.com \
--cc=alexandre.torgue@foss.st.com \
--cc=andersson@kernel.org \
--cc=bartosz.golaszewski@linaro.org \
--cc=bhupesh.sharma@linaro.org \
--cc=conor+dt@kernel.org \
--cc=davem@davemloft.net \
--cc=devicetree@vger.kernel.org \
--cc=edumazet@google.com \
--cc=joabreu@synopsys.com \
--cc=konrad.dybcio@linaro.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=kuba@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-stm32@st-md-mailman.stormreply.com \
--cc=mcoquelin.stm32@gmail.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=peppe.cavallaro@st.com \
--cc=robh+dt@kernel.org \
--cc=vkoul@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).