Merge branch 'altera-tse-phylink'

Maxime Chevallier says:

====================
net: altera: tse: phylink conversion

This is V4 of a series converting the Altera TSE driver to phylink,
introducing a new PCS driver along the way.

The Altera TSE can be built with a SGMII/1000BaseX PCS, allowing to use
SFP ports with this MAC, which is the end goal of adding phylink support
and a proper PCS driver.

The PCS itself can either be mapped in the MAC's register space, in that
case, it's accessed through 32 bits registers, with the higher 16 bits
always 0. Alternatively, it can sit on its own register space, exposing
16 bits registers, some of which ressemble the standard PHY registers.

To tackle that rework, several things needs updating, starting by the DT
binding, since we add support for a new register range for the PCS.

Hence, the first patch of the series is a conversion to YAML of the
existing binding.

Then, patch 2 does a bit of simple cleanup to the TSE driver, using nice
reverse xmas tree definitions.

Patch 3 adds the actual PCS driver, as a standalone driver. Some future
series will then reuse that PCS driver from the dwmac-socfpga driver,
which implements support for this exact PCS too, allowing to share the
code nicely.

Patch 4 is then a phylink conversion of the altera_tse driver, to use
this new PCS driver.

Finally, patch 5 updates the newly converted DT binding to support the
pcs register range.

This series contains bits and pieces for this conversion, please tell me if
you want me to send it as individual patches.

V4 Changes:
 - Add missing MODULE_* macros to the TSE PCS driver

V3 Changes:
 - YAML binding conversion changes and PCS addition changes thanks to
   Krzysztof's reviews

V2 Changes :
 - Fixed the binding after the YAML conversion
 - Added a pcs_validate() callback
 - Introduced a comment to justify a soft reset for the PCS
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 11 deletions

diff --git a/drivers/net/ethernet/altera/altera_tse.h b/drivers/net/ethernet/altera/altera_tse.h
index f17acfb579a0..db5eed06e92d 100644
--- a/drivers/net/ethernet/altera/altera_tse.h
+++ b/drivers/net/ethernet/altera/altera_tse.h
@@ -27,6 +27,7 @@
 #include <linux/list.h>
 #include <linux/netdevice.h>
 #include <linux/phy.h>
+#include <linux/phylink.h>
 
 #define ALTERA_TSE_SW_RESET_WATCHDOG_CNTR	10000
 #define ALTERA_TSE_MAC_FIFO_WIDTH		4	/* TX/RX FIFO width in
@@ -109,17 +110,6 @@
 #define MAC_CMDCFG_DISABLE_READ_TIMEOUT_GET(v)	GET_BIT_VALUE(v, 27)
 #define MAC_CMDCFG_CNT_RESET_GET(v)		GET_BIT_VALUE(v, 31)
 
-/* SGMII PCS register addresses
- */
-#define SGMII_PCS_SCRATCH	0x10
-#define SGMII_PCS_REV		0x11
-#define SGMII_PCS_LINK_TIMER_0	0x12
-#define SGMII_PCS_LINK_TIMER_1	0x13
-#define SGMII_PCS_IF_MODE	0x14
-#define SGMII_PCS_DIS_READ_TO	0x15
-#define SGMII_PCS_READ_TO	0x16
-#define SGMII_PCS_SW_RESET_TIMEOUT 100 /* usecs */
-
 /* MDIO registers within MAC register Space
  */
 struct altera_tse_mdio {
@@ -423,6 +413,9 @@ struct altera_tse_private {
 	void __iomem *tx_dma_csr;
 	void __iomem *tx_dma_desc;
 
+	/* SGMII PCS address space */
+	void __iomem *pcs_base;
+
 	/* Rx buffers queue */
 	struct tse_buffer *rx_ring;
 	u32 rx_cons;
@@ -480,6 +473,10 @@ struct altera_tse_private {
 	u32 msg_enable;
 
 	struct altera_dmaops *dmaops;
+
+	struct phylink *phylink;
+	struct phylink_config phylink_config;
+	struct phylink_pcs *pcs;
 };
 
 /* Function prototypes