* [PATCH v4 net-next 1/2] net: stmmac: add new mode parameter for fix_mac_speed
2023-08-04 14:46 [PATCH v4 net-next 0/2] update stmmac fix_mac_speed Shenwei Wang
@ 2023-08-04 14:46 ` Shenwei Wang
2023-08-06 2:48 ` kernel test robot
2023-08-04 14:46 ` [PATCH v4 net-next 2/2] net: stmmac: dwmac-imx: pause the TXC clock in fixed-link Shenwei Wang
1 sibling, 1 reply; 6+ messages in thread
From: Shenwei Wang @ 2023-08-04 14:46 UTC (permalink / raw)
To: Marc Kleine-Budde, Russell King, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Maxime Coquelin, Shawn Guo,
Sascha Hauer, Neil Armstrong, Kevin Hilman, Vinod Koul,
Chen-Yu Tsai, Jernej Skrabec, Samuel Holland
Cc: Giuseppe Cavallaro, Alexandre Torgue, Jose Abreu,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Jerome Brunet, Martin Blumenstingl, Bhupesh Sharma,
Nobuhiro Iwamatsu, Simon Horman, Andrew Halaney,
Bartosz Golaszewski, Shenwei Wang, Wong Vee Khee,
Revanth Kumar Uppala, Jochen Henneberg, netdev, linux-stm32,
linux-arm-kernel, linux-kernel, linux-amlogic, imx
A mode parameter has been added to the callback function of fix_mac_speed
to indicate the physical layer type.
The mode can be one the following:
MLO_AN_PHY - Conventional PHY
MLO_AN_FIXED - Fixed-link mode
MLO_AN_INBAND - In-band protocol
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c | 4 ++--
drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
include/linux/stmmac.h | 2 +-
13 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
index b5efd9c2eac7..55162d798319 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
@@ -178,7 +178,7 @@ static void dwc_qos_remove(struct platform_device *pdev)
#define AUTO_CAL_STATUS 0x880c
#define AUTO_CAL_STATUS_ACTIVE BIT(31)
-static void tegra_eqos_fix_speed(void *priv, unsigned int speed)
+static void tegra_eqos_fix_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct tegra_eqos *eqos = priv;
unsigned long rate = 125000000;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index b9378a63f0e8..3eb6b4457494 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -178,7 +178,7 @@ static void imx_dwmac_exit(struct platform_device *pdev, void *priv)
/* nothing to do now */
}
-static void imx_dwmac_fix_speed(void *priv, unsigned int speed)
+static void imx_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct plat_stmmacenet_data *plat_dat;
struct imx_priv_data *dwmac = priv;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c
index a5e639ab0b9e..d352a14f9d48 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c
@@ -22,13 +22,13 @@ struct intel_dwmac {
};
struct intel_dwmac_data {
- void (*fix_mac_speed)(void *priv, unsigned int speed);
+ void (*fix_mac_speed)(void *priv, unsigned int speed, unsigned int mode);
unsigned long ptp_ref_clk_rate;
unsigned long tx_clk_rate;
bool tx_clk_en;
};
-static void kmb_eth_fix_mac_speed(void *priv, unsigned int speed)
+static void kmb_eth_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct intel_dwmac *dwmac = priv;
unsigned long rate;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
index e39406df8516..9b0200749109 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
@@ -257,7 +257,7 @@ static int ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
return PTR_ERR_OR_ZERO(gmac->qsgmii_csr);
}
-static void ipq806x_gmac_fix_mac_speed(void *priv, unsigned int speed)
+static void ipq806x_gmac_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct ipq806x_gmac *gmac = priv;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c
index 7aa5e6bc04eb..959f88c6da16 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c
@@ -22,7 +22,7 @@ struct meson_dwmac {
void __iomem *reg;
};
-static void meson6_dwmac_fix_mac_speed(void *priv, unsigned int speed)
+static void meson6_dwmac_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct meson_dwmac *dwmac = priv;
unsigned int val;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 735525ba8b93..405ab645f1cb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -631,7 +631,7 @@ static int ethqos_configure(struct qcom_ethqos *ethqos)
return ethqos->configure_func(ethqos);
}
-static void ethqos_fix_mac_speed(void *priv, unsigned int speed)
+static void ethqos_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct qcom_ethqos *ethqos = priv;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index d81591b470a2..91553475c38b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1785,7 +1785,7 @@ static void rk_gmac_powerdown(struct rk_priv_data *gmac)
gmac_clk_enable(gmac, false);
}
-static void rk_fix_speed(void *priv, unsigned int speed)
+static void rk_fix_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct rk_priv_data *bsp_priv = priv;
struct device *dev = &bsp_priv->pdev->dev;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 6267bcb60206..7db176e8691f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -61,7 +61,7 @@ struct socfpga_dwmac {
struct mdio_device *pcs_mdiodev;
};
-static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed)
+static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct socfpga_dwmac *dwmac = (struct socfpga_dwmac *)priv;
void __iomem *splitter_base = dwmac->splitter_base;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
index d3a39d2fb3a9..9c700590bf25 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
@@ -22,7 +22,7 @@ struct starfive_dwmac {
struct clk *clk_tx;
};
-static void starfive_dwmac_fix_mac_speed(void *priv, unsigned int speed)
+static void starfive_dwmac_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct starfive_dwmac *dwmac = priv;
unsigned long rate;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
index 50963e91c347..beceeae579bf 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
@@ -72,7 +72,7 @@ static void sun7i_gmac_exit(struct platform_device *pdev, void *priv)
regulator_disable(gmac->regulator);
}
-static void sun7i_fix_speed(void *priv, unsigned int speed)
+static void sun7i_fix_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct sunxi_priv_data *gmac = priv;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
index acbb284be174..ae2a0ff664c1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
@@ -53,7 +53,7 @@ struct visconti_eth {
spinlock_t lock; /* lock to protect register update */
};
-static void visconti_eth_fix_mac_speed(void *priv, unsigned int speed)
+static void visconti_eth_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode)
{
struct visconti_eth *dwmac = priv;
struct net_device *netdev = dev_get_drvdata(dwmac->dev);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index e1f1c034d325..1c26d60886be 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1060,7 +1060,7 @@ static void stmmac_mac_link_up(struct phylink_config *config,
priv->speed = speed;
if (priv->plat->fix_mac_speed)
- priv->plat->fix_mac_speed(priv->plat->bsp_priv, speed);
+ priv->plat->fix_mac_speed(priv->plat->bsp_priv, speed, mode);
if (!duplex)
ctrl &= ~priv->hw->link.duplex;
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index ef67dba775d0..4876735ebe41 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -253,7 +253,7 @@ struct plat_stmmacenet_data {
u8 tx_sched_algorithm;
struct stmmac_rxq_cfg rx_queues_cfg[MTL_MAX_RX_QUEUES];
struct stmmac_txq_cfg tx_queues_cfg[MTL_MAX_TX_QUEUES];
- void (*fix_mac_speed)(void *priv, unsigned int speed);
+ void (*fix_mac_speed)(void *priv, unsigned int speed, unsigned int mode);
int (*fix_soc_reset)(void *priv, void __iomem *ioaddr);
int (*serdes_powerup)(struct net_device *ndev, void *priv);
void (*serdes_powerdown)(struct net_device *ndev, void *priv);
--
2.34.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH v4 net-next 2/2] net: stmmac: dwmac-imx: pause the TXC clock in fixed-link
2023-08-04 14:46 [PATCH v4 net-next 0/2] update stmmac fix_mac_speed Shenwei Wang
2023-08-04 14:46 ` [PATCH v4 net-next 1/2] net: stmmac: add new mode parameter for fix_mac_speed Shenwei Wang
@ 2023-08-04 14:46 ` Shenwei Wang
2023-08-04 14:56 ` Russell King (Oracle)
1 sibling, 1 reply; 6+ messages in thread
From: Shenwei Wang @ 2023-08-04 14:46 UTC (permalink / raw)
To: Marc Kleine-Budde, Russell King, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Maxime Coquelin, Shawn Guo,
Sascha Hauer, Neil Armstrong, Kevin Hilman, Vinod Koul,
Chen-Yu Tsai, Jernej Skrabec, Samuel Holland
Cc: Giuseppe Cavallaro, Alexandre Torgue, Jose Abreu,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Jerome Brunet, Martin Blumenstingl, Bhupesh Sharma,
Nobuhiro Iwamatsu, Simon Horman, Andrew Halaney,
Bartosz Golaszewski, Shenwei Wang, Wong Vee Khee,
Revanth Kumar Uppala, Jochen Henneberg, netdev, linux-stm32,
linux-arm-kernel, linux-kernel, linux-amlogic, imx, Frank Li
When using a fixed-link setup, certain devices like the SJA1105 require a
small pause in the TXC clock line to enable their internal tunable
delay line (TDL).
To satisfy this requirement, this patch temporarily disables the TX clock,
and restarts it after a required period. This provides the required
silent interval on the clock line for SJA1105 to complete the frequency
transition and enable the internal TDLs. This action occurs before the link
is built up, so it does not impact a normal device too. There is no
need to identify if the connected device is an SJA1105 alike or not during
the implementation.
So far we have only enabled this feature on the i.MX93 platform.
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Reviewed-by: Frank Li <frank.li@nxp.com>
---
.../net/ethernet/stmicro/stmmac/dwmac-imx.c | 43 +++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index 3eb6b4457494..0aca089ef510 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -32,6 +32,7 @@
#define GPR_ENET_QOS_RGMII_EN (0x1 << 21)
#define MX93_GPR_ENET_QOS_INTF_MODE_MASK GENMASK(3, 0)
+#define MX93_GPR_ENET_QOS_INTF_MASK GENMASK(3, 1)
#define MX93_GPR_ENET_QOS_INTF_SEL_MII (0x0 << 1)
#define MX93_GPR_ENET_QOS_INTF_SEL_RMII (0x4 << 1)
#define MX93_GPR_ENET_QOS_INTF_SEL_RGMII (0x1 << 1)
@@ -40,6 +41,7 @@
#define DMA_BUS_MODE 0x00001000
#define DMA_BUS_MODE_SFT_RESET (0x1 << 0)
#define RMII_RESET_SPEED (0x3 << 14)
+#define CTRL_SPEED_MASK GENMASK(15, 14)
struct imx_dwmac_ops {
u32 addr_width;
@@ -47,6 +49,7 @@ struct imx_dwmac_ops {
int (*fix_soc_reset)(void *priv, void __iomem *ioaddr);
int (*set_intf_mode)(struct plat_stmmacenet_data *plat_dat);
+ void (*fix_mac_speed)(void *priv, unsigned int speed, unsigned int mode);
};
struct imx_priv_data {
@@ -56,6 +59,7 @@ struct imx_priv_data {
struct regmap *intf_regmap;
u32 intf_reg_off;
bool rmii_refclk_ext;
+ void __iomem *base_addr;
const struct imx_dwmac_ops *ops;
struct plat_stmmacenet_data *plat_dat;
@@ -212,6 +216,41 @@ static void imx_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mod
dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
}
+static void imx93_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mode)
+{
+ struct imx_priv_data *dwmac = priv;
+ unsigned int iface;
+ int ctrl, old_ctrl;
+
+ imx_dwmac_fix_speed(priv, speed, mode);
+
+ if (!dwmac || mode != MLO_AN_FIXED)
+ return;
+
+ if (regmap_read(dwmac->intf_regmap, dwmac->intf_reg_off, &iface))
+ return;
+
+ iface &= MX93_GPR_ENET_QOS_INTF_MASK;
+ if (iface != MX93_GPR_ENET_QOS_INTF_SEL_RGMII)
+ return;
+
+ old_ctrl = readl(dwmac->base_addr + MAC_CTRL_REG);
+ ctrl = old_ctrl & ~CTRL_SPEED_MASK;
+ regmap_update_bits(dwmac->intf_regmap, dwmac->intf_reg_off,
+ MX93_GPR_ENET_QOS_INTF_MODE_MASK, 0);
+ writel(ctrl, dwmac->base_addr + MAC_CTRL_REG);
+
+ /* Ensure the settings for CTRL are applied. */
+ readl(dwmac->base_addr + MAC_CTRL_REG);
+
+ usleep_range(10, 20);
+ iface |= MX93_GPR_ENET_QOS_CLK_GEN_EN;
+ regmap_update_bits(dwmac->intf_regmap, dwmac->intf_reg_off,
+ MX93_GPR_ENET_QOS_INTF_MODE_MASK, iface);
+
+ writel(old_ctrl, dwmac->base_addr + MAC_CTRL_REG);
+}
+
static int imx_dwmac_mx93_reset(void *priv, void __iomem *ioaddr)
{
struct plat_stmmacenet_data *plat_dat = priv;
@@ -319,6 +358,7 @@ static int imx_dwmac_probe(struct platform_device *pdev)
plat_dat->fix_mac_speed = imx_dwmac_fix_speed;
plat_dat->bsp_priv = dwmac;
dwmac->plat_dat = plat_dat;
+ dwmac->base_addr = stmmac_res.addr;
ret = imx_dwmac_clks_config(dwmac, true);
if (ret)
@@ -328,6 +368,8 @@ static int imx_dwmac_probe(struct platform_device *pdev)
if (ret)
goto err_dwmac_init;
+ if (dwmac->ops->fix_soc_reset)
+ plat_dat->fix_mac_speed = dwmac->ops->fix_mac_speed;
dwmac->plat_dat->fix_soc_reset = dwmac->ops->fix_soc_reset;
ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
@@ -364,6 +406,7 @@ static struct imx_dwmac_ops imx93_dwmac_data = {
.mac_rgmii_txclk_auto_adj = true,
.set_intf_mode = imx93_set_intf_mode,
.fix_soc_reset = imx_dwmac_mx93_reset,
+ .fix_mac_speed = imx93_dwmac_fix_speed,
};
static const struct of_device_id imx_dwmac_match[] = {
--
2.34.1
^ permalink raw reply related [flat|nested] 6+ messages in thread