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From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Jose Abreu <joabreu@synopsys.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
	bpf@vger.kernel.org, Daniel Borkmann <daniel@iogearbox.net>,
	"David S. Miller" <davem@davemloft.net>,
	Emil Renner Berthing <kernel@esmil.dk>,
	Eric Dumazet <edumazet@google.com>,
	Fabio Estevam <festevam@gmail.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Jesper Dangaard Brouer <hawk@kernel.org>,
	John Fastabend <john.fastabend@gmail.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-stm32@st-md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	netdev@vger.kernel.org, NXP Linux Team <linux-imx@nxp.com>,
	Paolo Abeni <pabeni@redhat.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Samin Guo <samin.guo@starfivetech.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>
Subject: [PATCH net-next 1/6] net: stmmac: add stmmac_set_tx_clk_gmii()
Date: Thu, 14 Sep 2023 14:51:20 +0100	[thread overview]
Message-ID: <E1qgmka-007Z4Z-1E@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <ZQMPnyutz6T23E8T@shell.armlinux.org.uk>

Add a helper function for setting the transmit clock for GMII
interfaces. This handles 1G, 100M and 10M using the standard clock
rates of 125MHz, 25MHz and 2.5MHz.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 .../ethernet/stmicro/stmmac/stmmac_platform.c | 25 +++++++++++++++++++
 .../ethernet/stmicro/stmmac/stmmac_platform.h |  1 +
 2 files changed, 26 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 0f28795e581c..f7635ed2b255 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -700,6 +700,31 @@ EXPORT_SYMBOL_GPL(stmmac_probe_config_dt);
 EXPORT_SYMBOL_GPL(devm_stmmac_probe_config_dt);
 EXPORT_SYMBOL_GPL(stmmac_remove_config_dt);
 
+int stmmac_set_tx_clk_gmii(struct clk *tx_clk, unsigned int speed)
+{
+	unsigned long rate;
+
+	switch (speed) {
+	case SPEED_1000:
+		rate = 125000000;
+		break;
+
+	case SPEED_100:
+		rate = 25000000;
+		break;
+
+	case SPEED_10:
+		rate = 2500000;
+		break;
+
+	default:
+		return -ENOTSUPP;
+	}
+
+	return clk_set_rate(tx_clk, rate);
+}
+EXPORT_SYMBOL_GPL(stmmac_set_tx_clk_gmii);
+
 int stmmac_get_platform_resources(struct platform_device *pdev,
 				  struct stmmac_resources *stmmac_res)
 {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
index c5565b2a70ac..8dc2287c6724 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
@@ -11,6 +11,7 @@
 
 #include "stmmac.h"
 
+int stmmac_set_tx_clk_gmii(struct clk *tx_clk, unsigned int speed);
 struct plat_stmmacenet_data *
 stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac);
 struct plat_stmmacenet_data *
-- 
2.30.2


WARNING: multiple messages have this Message-ID (diff)
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Jose Abreu <joabreu@synopsys.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
	bpf@vger.kernel.org, Daniel Borkmann <daniel@iogearbox.net>,
	"David S. Miller" <davem@davemloft.net>,
	Emil Renner Berthing <kernel@esmil.dk>,
	Eric Dumazet <edumazet@google.com>,
	Fabio Estevam <festevam@gmail.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Jesper Dangaard Brouer <hawk@kernel.org>,
	John Fastabend <john.fastabend@gmail.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-stm32@st-md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	netdev@vger.kernel.org, NXP Linux Team <linux-imx@nxp.com>,
	Paolo Abeni <pabeni@redhat.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Samin Guo <samin.guo@starfivetech.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>
Subject: [PATCH net-next 1/6] net: stmmac: add stmmac_set_tx_clk_gmii()
Date: Thu, 14 Sep 2023 14:51:20 +0100	[thread overview]
Message-ID: <E1qgmka-007Z4Z-1E@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <ZQMPnyutz6T23E8T@shell.armlinux.org.uk>

Add a helper function for setting the transmit clock for GMII
interfaces. This handles 1G, 100M and 10M using the standard clock
rates of 125MHz, 25MHz and 2.5MHz.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 .../ethernet/stmicro/stmmac/stmmac_platform.c | 25 +++++++++++++++++++
 .../ethernet/stmicro/stmmac/stmmac_platform.h |  1 +
 2 files changed, 26 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 0f28795e581c..f7635ed2b255 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -700,6 +700,31 @@ EXPORT_SYMBOL_GPL(stmmac_probe_config_dt);
 EXPORT_SYMBOL_GPL(devm_stmmac_probe_config_dt);
 EXPORT_SYMBOL_GPL(stmmac_remove_config_dt);
 
+int stmmac_set_tx_clk_gmii(struct clk *tx_clk, unsigned int speed)
+{
+	unsigned long rate;
+
+	switch (speed) {
+	case SPEED_1000:
+		rate = 125000000;
+		break;
+
+	case SPEED_100:
+		rate = 25000000;
+		break;
+
+	case SPEED_10:
+		rate = 2500000;
+		break;
+
+	default:
+		return -ENOTSUPP;
+	}
+
+	return clk_set_rate(tx_clk, rate);
+}
+EXPORT_SYMBOL_GPL(stmmac_set_tx_clk_gmii);
+
 int stmmac_get_platform_resources(struct platform_device *pdev,
 				  struct stmmac_resources *stmmac_res)
 {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
index c5565b2a70ac..8dc2287c6724 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
@@ -11,6 +11,7 @@
 
 #include "stmmac.h"
 
+int stmmac_set_tx_clk_gmii(struct clk *tx_clk, unsigned int speed);
 struct plat_stmmacenet_data *
 stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac);
 struct plat_stmmacenet_data *
-- 
2.30.2


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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2023-09-14 13:51 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-14 13:50 [PATCH net-next v2 0/6] net: stmmac: add and use library for setting clock Russell King (Oracle)
2023-09-14 13:50 ` Russell King (Oracle)
2023-09-14 13:51 ` Russell King (Oracle) [this message]
2023-09-14 13:51   ` [PATCH net-next 1/6] net: stmmac: add stmmac_set_tx_clk_gmii() Russell King (Oracle)
2023-09-14 14:54   ` Serge Semin
2023-09-14 14:54     ` Serge Semin
2023-09-14 15:12     ` Russell King (Oracle)
2023-09-14 15:12       ` Russell King (Oracle)
2023-09-14 16:06       ` Serge Semin
2023-09-14 16:06         ` Serge Semin
2023-09-14 13:51 ` [PATCH net-next 2/6] net: stmmac: imx: use stmmac_set_tx_clk_gmii() Russell King (Oracle)
2023-09-14 13:51   ` Russell King (Oracle)
2023-09-14 14:59   ` Serge Semin
2023-09-14 14:59     ` Serge Semin
2023-09-14 13:51 ` [PATCH net-next 3/6] net: stmmac: intel-plat: " Russell King (Oracle)
2023-09-14 13:51   ` Russell King (Oracle)
2023-09-14 15:00   ` Serge Semin
2023-09-14 15:00     ` Serge Semin
2023-09-14 13:51 ` [PATCH net-next 4/6] net: stmmac: rk: " Russell King (Oracle)
2023-09-14 13:51   ` Russell King (Oracle)
2023-09-14 14:37   ` Serge Semin
2023-09-14 14:37     ` Serge Semin
2023-09-14 15:03     ` Russell King (Oracle)
2023-09-14 15:03       ` Russell King (Oracle)
2023-09-14 15:22       ` Serge Semin
2023-09-14 15:22         ` Serge Semin
2023-09-14 15:27         ` Russell King (Oracle)
2023-09-14 15:27           ` Russell King (Oracle)
2023-09-14 15:30           ` Russell King (Oracle)
2023-09-14 15:30             ` Russell King (Oracle)
2023-09-14 16:01             ` Jose Abreu
2023-09-14 16:01               ` Jose Abreu
2023-09-14 17:05               ` Serge Semin
2023-09-14 17:05                 ` Serge Semin
2023-09-15  8:38                 ` Jose Abreu
2023-09-15  8:38                   ` Jose Abreu
2023-09-16 20:17                   ` Serge Semin
2023-09-16 20:17                     ` Serge Semin
2023-09-14 13:51 ` [PATCH net-next 5/6] net: stmmac: starfive: " Russell King (Oracle)
2023-09-14 13:51   ` Russell King (Oracle)
2023-09-14 15:04   ` Serge Semin
2023-09-14 15:04     ` Serge Semin
2023-09-14 13:51 ` [PATCH net-next 6/6] net: stmmac: qos-eth: " Russell King (Oracle)
2023-09-14 13:51   ` Russell King (Oracle)

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