Re: [PATCH v11 3/4] phy: Add Sparx5 ethernet serdes PHY driver

Add the Microchip Sparx5 ethernet serdes PHY driver for the 6G, 10G and 25G
interfaces available in the Sparx5 SoC.

Signed-off-by: Bjarni Jonasson <redacted>
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
 drivers/phy/Kconfig                        |    1 +
 drivers/phy/Makefile                       |    1 +
 drivers/phy/microchip/Kconfig              |   12 +
 drivers/phy/microchip/Makefile             |    6 +
 drivers/phy/microchip/sparx5_serdes.c      | 2443 ++++++++++++++++++
 drivers/phy/microchip/sparx5_serdes.h      |  129 +
 drivers/phy/microchip/sparx5_serdes_regs.h | 2695 ++++++++++++++++++++
 7 files changed, 5287 insertions(+)
 create mode 100644 drivers/phy/microchip/Kconfig
 create mode 100644 drivers/phy/microchip/Makefile
 create mode 100644 drivers/phy/microchip/sparx5_serdes.c
 create mode 100644 drivers/phy/microchip/sparx5_serdes.h
 create mode 100644 drivers/phy/microchip/sparx5_serdes_regs.h

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 00dabe5fab8a..df35c752f3aa 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig

@@ -70,6 +70,7 @@ source "drivers/phy/ingenic/Kconfig"
 source "drivers/phy/lantiq/Kconfig"
 source "drivers/phy/marvell/Kconfig"
 source "drivers/phy/mediatek/Kconfig"
+source "drivers/phy/microchip/Kconfig"
 source "drivers/phy/motorola/Kconfig"
 source "drivers/phy/mscc/Kconfig"
 source "drivers/phy/qualcomm/Kconfig"

diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 32261e164abd..adac1b1a39d1 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile

@@ -20,6 +20,7 @@ obj-y					+= allwinner/	\
 					   lantiq/	\
 					   marvell/	\
 					   mediatek/	\
+					   microchip/	\
 					   motorola/	\
 					   mscc/	\
 					   qualcomm/	\

diff --git a/drivers/phy/microchip/Kconfig b/drivers/phy/microchip/Kconfig
new file mode 100644
index 000000000000..0b1a818e01b8

+struct sparx5_sd10g28_args {
+	bool                 skip_cmu_cfg; /* Enable/disable CMU cfg */
+	bool                 no_pwrcycle;  /* Omit initial power-cycle */
+	bool                 txinvert;     /* Enable inversion of output data */
+	bool                 rxinvert;     /* Enable inversion of input data */
+	bool                 txmargin;     /* Set output level to  half/full */
+	u16                  txswing;      /* Set output level */
+	bool                 mute;         /* Mute Output Buffer */
+	bool                 is_6g;
+	bool                 reg_rst;
+};

+static inline void __iomem *sdx5_addr(void __iomem *base[],
+				      int id, int tinst, int tcnt,
+				      int gbase, int ginst,
+				      int gcnt, int gwidth,
+				      int raddr, int rinst,
+				      int rcnt, int rwidth)
+{
+#if defined(CONFIG_DEBUG_KERNEL)
+	WARN_ON((tinst) >= tcnt);
+	WARN_ON((ginst) >= gcnt);
+	WARN_ON((rinst) >= rcnt);
+#endif