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Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.50 All patches automatically rebased. Build system: x86/64 Build-tested: x86/64/AMD Cezanne, filogic/xiaomi_redmi-router-ax6000-ubootmod, ipq806x/R7800 Run-tested: x86/64/AMD Cezanne, filogic/xiaomi_redmi-router-ax6000-ubootmod, ipq806x/R7800 Signed-off-by: John Audia <therealgraysky@proton.me>
119 lines
3.9 KiB
Diff
119 lines
3.9 KiB
Diff
From eb1dd407b4be7ca38166a38c56c8edf52c6a399f Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Sun, 16 Apr 2023 13:08:14 +0100
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Subject: [PATCH 13/13] net: dsa: mt7530: fix support for MT7531BE
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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There are two variants of the MT7531 switch IC which got different
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features (and pins) regarding port 5:
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* MT7531AE: SGMII/1000Base-X/2500Base-X SerDes PCS
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* MT7531BE: RGMII
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Moving the creation of the SerDes PCS from mt753x_setup to mt7530_probe
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with commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation
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to mt7530_probe function") works fine for MT7531AE which got two
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instances of mtk-pcs-lynxi, however, MT7531BE requires mt7531_pll_setup
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to setup clocks before the single PCS on port 6 (usually used as CPU
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port) starts to work and hence the PCS creation failed on MT7531BE.
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Fix this by introducing a pointer to mt7531_create_sgmii function in
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struct mt7530_priv and call it again at the end of mt753x_setup like it
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was before commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS
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creation to mt7530_probe function").
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Fixes: 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation to mt7530_probe function")
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com>
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Link: https://lore.kernel.org/r/ZDvlLhhqheobUvOK@makrotopia.org
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/dsa/mt7530-mdio.c | 16 ++++++++--------
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drivers/net/dsa/mt7530.c | 6 ++++++
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drivers/net/dsa/mt7530.h | 4 ++--
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3 files changed, 16 insertions(+), 10 deletions(-)
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--- a/drivers/net/dsa/mt7530-mdio.c
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+++ b/drivers/net/dsa/mt7530-mdio.c
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@@ -81,14 +81,17 @@ static const struct regmap_bus mt7530_re
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};
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static int
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-mt7531_create_sgmii(struct mt7530_priv *priv)
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+mt7531_create_sgmii(struct mt7530_priv *priv, bool dual_sgmii)
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{
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- struct regmap_config *mt7531_pcs_config[2];
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+ struct regmap_config *mt7531_pcs_config[2] = {};
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struct phylink_pcs *pcs;
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struct regmap *regmap;
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int i, ret = 0;
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- for (i = 0; i < 2; i++) {
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+ /* MT7531AE has two SGMII units for port 5 and port 6
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+ * MT7531BE has only one SGMII unit for port 6
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+ */
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+ for (i = dual_sgmii ? 0 : 1; i < 2; i++) {
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mt7531_pcs_config[i] = devm_kzalloc(priv->dev,
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sizeof(struct regmap_config),
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GFP_KERNEL);
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@@ -208,11 +211,8 @@ mt7530_probe(struct mdio_device *mdiodev
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if (IS_ERR(priv->regmap))
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return PTR_ERR(priv->regmap);
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- if (priv->id == ID_MT7531) {
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- ret = mt7531_create_sgmii(priv);
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- if (ret)
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- return ret;
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- }
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+ if (priv->id == ID_MT7531)
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+ priv->create_sgmii = mt7531_create_sgmii;
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return dsa_register_switch(priv->ds);
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}
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--- a/drivers/net/dsa/mt7530.c
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+++ b/drivers/net/dsa/mt7530.c
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@@ -3048,6 +3048,12 @@ mt753x_setup(struct dsa_switch *ds)
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if (ret && priv->irq)
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mt7530_free_irq_common(priv);
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+ if (priv->create_sgmii) {
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+ ret = priv->create_sgmii(priv, mt7531_dual_sgmii_supported(priv));
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+ if (ret && priv->irq)
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+ mt7530_free_irq(priv);
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+ }
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+
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return ret;
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}
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--- a/drivers/net/dsa/mt7530.h
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+++ b/drivers/net/dsa/mt7530.h
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@@ -748,10 +748,10 @@ struct mt753x_info {
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* registers
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* @p6_interface Holding the current port 6 interface
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* @p5_intf_sel: Holding the current port 5 interface select
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- *
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* @irq: IRQ number of the switch
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* @irq_domain: IRQ domain of the switch irq_chip
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* @irq_enable: IRQ enable bits, synced to SYS_INT_EN
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+ * @create_sgmii: Pointer to function creating SGMII PCS instance(s)
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*/
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struct mt7530_priv {
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struct device *dev;
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@@ -770,7 +770,6 @@ struct mt7530_priv {
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unsigned int p5_intf_sel;
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u8 mirror_rx;
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u8 mirror_tx;
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-
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struct mt7530_port ports[MT7530_NUM_PORTS];
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struct mt753x_pcs pcs[MT7530_NUM_PORTS];
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/* protect among processes for registers access*/
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@@ -778,6 +777,7 @@ struct mt7530_priv {
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int irq;
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struct irq_domain *irq_domain;
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u32 irq_enable;
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+ int (*create_sgmii)(struct mt7530_priv *priv, bool dual_sgmii);
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};
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struct mt7530_hw_vlan_entry {
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