diff mbox series

[v2] net: dsa: b53: add support for BCM63xx RGMIIs

Message ID 20230319220805.124024-1-noltari@gmail.com (mailing list archive)
State Accepted
Commit ce3bf94871f7aeb0167370206699872472f30220
Delegated to: Netdev Maintainers
Headers show
Series [v2] net: dsa: b53: add support for BCM63xx RGMIIs | expand

Checks

Context Check Description
netdev/series_format warning Single patches do not need cover letters; Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 18 this patch: 18
netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/build_clang success Errors and warnings before: 18 this patch: 18
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 18 this patch: 18
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 71 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Álvaro Fernández Rojas March 19, 2023, 10:08 p.m. UTC 
BCM63xx RGMII ports require additional configuration in order to work.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 v2: add changes suggested by Andrew:
  - Use a switch statement.
  - Use dev_dbg() instead of dev_info().

 drivers/net/dsa/b53/b53_common.c | 46 ++++++++++++++++++++++++++++++++
 drivers/net/dsa/b53/b53_priv.h   |  1 +
 2 files changed, 47 insertions(+)

Comments

Andrew Lunn March 20, 2023, 12:19 p.m. UTC | #1 
On Sun, Mar 19, 2023 at 11:08:05PM +0100, Álvaro Fernández Rojas wrote:
> BCM63xx RGMII ports require additional configuration in order to work.
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
patchwork-bot+netdevbpf@kernel.org March 21, 2023, 12:30 p.m. UTC | #2 
Hello:

This patch was applied to netdev/net-next.git (main)
by Paolo Abeni <pabeni@redhat.com>:

On Sun, 19 Mar 2023 23:08:05 +0100 you wrote:
> BCM63xx RGMII ports require additional configuration in order to work.
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  v2: add changes suggested by Andrew:
>   - Use a switch statement.
>   - Use dev_dbg() instead of dev_info().
> 
> [...]

Here is the summary with links:
  - [v2] net: dsa: b53: add support for BCM63xx RGMIIs
    https://git.kernel.org/netdev/net-next/c/ce3bf94871f7

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 59cdfc51ce06..6e212f6f1cb9 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1209,6 +1209,46 @@  static void b53_force_port_config(struct b53_device *dev, int port,
 	b53_write8(dev, B53_CTRL_PAGE, off, reg);
 }
 
+static void b53_adjust_63xx_rgmii(struct dsa_switch *ds, int port,
+				  phy_interface_t interface)
+{
+	struct b53_device *dev = ds->priv;
+	u8 rgmii_ctrl = 0, off;
+
+	if (port == dev->imp_port)
+		off = B53_RGMII_CTRL_IMP;
+	else
+		off = B53_RGMII_CTRL_P(port);
+
+	b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
+
+	switch (interface) {
+	case PHY_INTERFACE_MODE_RGMII_ID:
+		rgmii_ctrl |= (RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
+		break;
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+		rgmii_ctrl &= ~(RGMII_CTRL_DLL_TXC);
+		rgmii_ctrl |= RGMII_CTRL_DLL_RXC;
+		break;
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC);
+		rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
+		break;
+	case PHY_INTERFACE_MODE_RGMII:
+	default:
+		rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
+		break;
+	}
+
+	if (port != dev->imp_port)
+		rgmii_ctrl |= RGMII_CTRL_ENABLE_GMII;
+
+	b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
+
+	dev_dbg(ds->dev, "Configured port %d for %s\n", port,
+		phy_modes(interface));
+}
+
 static void b53_adjust_link(struct dsa_switch *ds, int port,
 			    struct phy_device *phydev)
 {
@@ -1235,6 +1275,9 @@  static void b53_adjust_link(struct dsa_switch *ds, int port,
 			      tx_pause, rx_pause);
 	b53_force_link(dev, port, phydev->link);
 
+	if (is63xx(dev) && port >= B53_63XX_RGMII0)
+		b53_adjust_63xx_rgmii(ds, port, phydev->interface);
+
 	if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
 		if (port == dev->imp_port)
 			off = B53_RGMII_CTRL_IMP;
@@ -1402,6 +1445,9 @@  void b53_phylink_mac_link_up(struct dsa_switch *ds, int port,
 {
 	struct b53_device *dev = ds->priv;
 
+	if (is63xx(dev) && port >= B53_63XX_RGMII0)
+		b53_adjust_63xx_rgmii(ds, port, interface);
+
 	if (mode == MLO_AN_PHY)
 		return;
 
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h
index 795cbffd5c2b..4cf9f540696e 100644
--- a/drivers/net/dsa/b53/b53_priv.h
+++ b/drivers/net/dsa/b53/b53_priv.h
@@ -211,6 +211,7 @@  static inline int is58xx(struct b53_device *dev)
 		dev->chip_id == BCM7278_DEVICE_ID;
 }
 
+#define B53_63XX_RGMII0	4
 #define B53_CPU_PORT_25	5
 #define B53_CPU_PORT	8