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f7c1631155
Refreshing the patches forfff07085fbmoved the b53_adjust_63xx_rgmii() call from b53_phylink_mac_link_up() to b53_phylink_mac_link_down(). In order to properly configure the RGMII ports we need to restore it to its correct place. Fixes:fff07085fb("kernel: add pending bmips patches") Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
175 lines
6.9 KiB
Diff
175 lines
6.9 KiB
Diff
From patchwork Sun Mar 19 22:08:05 2023
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From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= <noltari@gmail.com>
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To: f.fainelli@gmail.com, jonas.gorski@gmail.com, andrew@lunn.ch,
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Cc: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= <noltari@gmail.com>
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Subject: [PATCH v2] net: dsa: b53: add support for BCM63xx RGMIIs
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Date: Sun, 19 Mar 2023 23:08:05 +0100
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Message-Id: <20230319220805.124024-1-noltari@gmail.com>
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BCM63xx RGMII ports require additional configuration in order to work.
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Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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---
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v2: add changes suggested by Andrew:
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- Use a switch statement.
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- Use dev_dbg() instead of dev_info().
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drivers/net/dsa/b53/b53_common.c | 46 ++++++++++++++++++++++++++++++++
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drivers/net/dsa/b53/b53_priv.h | 1 +
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2 files changed, 47 insertions(+)
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--- a/drivers/net/dsa/b53/b53_common.c
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+++ b/drivers/net/dsa/b53/b53_common.c
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@@ -1209,6 +1209,46 @@ static void b53_force_port_config(struct
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b53_write8(dev, B53_CTRL_PAGE, off, reg);
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}
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+static void b53_adjust_63xx_rgmii(struct dsa_switch *ds, int port,
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+ phy_interface_t interface)
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+{
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+ struct b53_device *dev = ds->priv;
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+ u8 rgmii_ctrl = 0, off;
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+
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+ if (port == dev->imp_port)
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+ off = B53_RGMII_CTRL_IMP;
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+ else
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+ off = B53_RGMII_CTRL_P(port);
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+
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+ b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
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+
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+ switch (interface) {
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+ case PHY_INTERFACE_MODE_RGMII_ID:
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+ rgmii_ctrl |= (RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
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+ break;
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+ case PHY_INTERFACE_MODE_RGMII_RXID:
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+ rgmii_ctrl &= ~(RGMII_CTRL_DLL_TXC);
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+ rgmii_ctrl |= RGMII_CTRL_DLL_RXC;
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+ break;
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+ case PHY_INTERFACE_MODE_RGMII_TXID:
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+ rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC);
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+ rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
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+ break;
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+ case PHY_INTERFACE_MODE_RGMII:
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+ default:
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+ rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
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+ break;
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+ }
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+
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+ if (port != dev->imp_port)
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+ rgmii_ctrl |= RGMII_CTRL_ENABLE_GMII;
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+
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+ b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
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+
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+ dev_dbg(ds->dev, "Configured port %d for %s\n", port,
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+ phy_modes(interface));
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+}
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+
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static void b53_adjust_link(struct dsa_switch *ds, int port,
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struct phy_device *phydev)
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{
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@@ -1235,6 +1275,9 @@ static void b53_adjust_link(struct dsa_s
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tx_pause, rx_pause);
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b53_force_link(dev, port, phydev->link);
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+ if (is63xx(dev) && port >= B53_63XX_RGMII0)
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+ b53_adjust_63xx_rgmii(ds, port, phydev->interface);
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+
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if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
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if (port == dev->imp_port)
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off = B53_RGMII_CTRL_IMP;
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@@ -1419,6 +1462,9 @@ void b53_phylink_mac_link_up(struct dsa_
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{
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struct b53_device *dev = ds->priv;
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+ if (is63xx(dev) && port >= B53_63XX_RGMII0)
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+ b53_adjust_63xx_rgmii(ds, port, interface);
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+
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if (mode == MLO_AN_PHY)
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return;
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--- a/drivers/net/dsa/b53/b53_priv.h
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+++ b/drivers/net/dsa/b53/b53_priv.h
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@@ -206,6 +206,7 @@ static inline int is58xx(struct b53_devi
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dev->chip_id == BCM7278_DEVICE_ID;
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}
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+#define B53_63XX_RGMII0 4
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#define B53_CPU_PORT_25 5
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#define B53_CPU_PORT 8
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