Adding the Sparx5 Serdes driver
This series of patches provides the serdes driver for the Microchip Sparx5
ethernet switch.
The serdes driver supports the 10G and 25G serdes instances available in the
Sparx5.
The Sparx5 serdes support several interface modes with several speeds and also
allows the client to change the mode and the speed according to changing in the
environment such as changing cables from DAC to fiber.
The serdes driver is to be used by the Sparx5 switchdev driver that
will follow in subsequent series.
History:
--------
v4 -> v5:
- Bindings:
- Removed .yaml from compatible string
- reg prop: removed description and added minItems
- reg-names prop: removed description and added const name list and minItems
- #phy-cells prop: removed description and added maxItems
- Configuration interface
- Removed include of linux/phy.h
- Added include of linux/types.h
- Driver
- Added include of linux/phy.h
v3 -> v4:
- Add a reg-names item to the binding description
- Add a clocks item to the binding description
- Removed the clock parameter from the configuration interface
- Use the clock dt node to get the coreclock, and using that when
doing the actual serdes configuration
- Added a clocks entry with a system clock reference to the serdes node in
the device tree
v2 -> v3:
- Sorted the Kconfig sourced folders
- Sorted the Makefile included folders
- Changed the configuration interface documentation to use kernel style
v1 -> v2: Fixed kernel test robot warnings
- Made these structures static:
- media_presets_25g
- mode_presets_25g
- media_presets_10g
- mode_presets_10g
- Removed these duplicate initializations:
- sparx5_sd25g28_params.cfg_rx_reserve_15_8
- sparx5_sd25g28_params.cfg_pi_en
- sparx5_sd25g28_params.cfg_cdrck_en
- sparx5_sd10g28_params.cfg_cdrck_en
Lars Povlsen (2):
dt-bindings: phy: Add sparx5-serdes bindings
arm64: dts: sparx5: Add Sparx5 serdes driver node
Steen Hegelund (2):
phy: Add ethernet serdes configuration option
phy: Add Sparx5 ethernet serdes PHY driver
.../bindings/phy/microchip,sparx5-serdes.yaml | 387 +++
arch/arm64/boot/dts/microchip/sparx5.dtsi | 196 ++
drivers/phy/Kconfig | 3 +-
drivers/phy/Makefile | 1 +
drivers/phy/microchip/Kconfig | 12 +
drivers/phy/microchip/Makefile | 6 +
drivers/phy/microchip/sparx5_serdes.c | 2480 +++++++++++++++
drivers/phy/microchip/sparx5_serdes_regs.h | 2773 +++++++++++++++++
include/linux/phy/phy-ethernet-serdes.h | 30 +
include/linux/phy/phy.h | 4 +
10 files changed, 5891 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/phy/microchip,sparx5-serdes.yaml
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_regs.h
create mode 100644 include/linux/phy/phy-ethernet-serdes.h
base-commit: 3cea11cd5e3b00d91caf0b4730194039b45c5891
prerequisite-patch-id: b155844f6a5e402ba62a39b1a2b276c8378eeb49
prerequisite-patch-id: 1605ab05e4212d0bba88a858c6dd16df64194282
prerequisite-patch-id: 8d9741ec8a716b179e39d640b3aab8f934c2573d
--
2.29.2
Provide a new ethernet phy configuration structure, that
allow PHYs used for ethernet to be configured with
speed, media type and clock information.
Signed-off-by: Lars Povlsen <[email protected]>
Signed-off-by: Steen Hegelund <[email protected]>
---
include/linux/phy/phy-ethernet-serdes.h | 30 +++++++++++++++++++++++++
include/linux/phy/phy.h | 4 ++++
2 files changed, 34 insertions(+)
create mode 100644 include/linux/phy/phy-ethernet-serdes.h
diff --git a/include/linux/phy/phy-ethernet-serdes.h b/include/linux/phy/phy-ethernet-serdes.h
new file mode 100644
index 000000000000..d2462fadf179
--- /dev/null
+++ b/include/linux/phy/phy-ethernet-serdes.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Microchip Sparx5 Ethernet SerDes driver
+ *
+ * Copyright (c) 2020 Microschip Inc
+ */
+#ifndef __PHY_ETHERNET_SERDES_H_
+#define __PHY_ETHERNET_SERDES_H_
+
+#include <linux/types.h>
+
+enum ethernet_media_type {
+ ETH_MEDIA_DEFAULT,
+ ETH_MEDIA_SR,
+ ETH_MEDIA_DAC,
+};
+
+/**
+ * struct phy_configure_opts_eth_serdes - Ethernet SerDes This structure is used
+ * to represent the configuration state of a Ethernet Serdes PHY.
+ * @speed: Speed of the serdes interface in Mbps
+ * @media_type: Specifies which media the serdes will be using
+ */
+struct phy_configure_opts_eth_serdes {
+ u32 speed;
+ enum ethernet_media_type media_type;
+};
+
+#endif
+
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index e435bdb0bab3..78ecb375cede 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -18,6 +18,7 @@
#include <linux/phy/phy-dp.h>
#include <linux/phy/phy-mipi-dphy.h>
+#include <linux/phy/phy-ethernet-serdes.h>
struct phy;
@@ -49,11 +50,14 @@ enum phy_mode {
*
* @mipi_dphy: Configuration set applicable for phys supporting
* the MIPI_DPHY phy mode.
+ * @eth_serdes: Configuration set applicable for phys supporting
+ * the ethernet serdes.
* @dp: Configuration set applicable for phys supporting
* the DisplayPort protocol.
*/
union phy_configure_opts {
struct phy_configure_opts_mipi_dphy mipi_dphy;
+ struct phy_configure_opts_eth_serdes eth_serdes;
struct phy_configure_opts_dp dp;
};
--
2.29.2