phy: marvell: Support changing SERDES map in board file

This adds a weak definition of comphy_update_map to comphy_core,
which does nothing. If this function is defined elsewhere, for example
in board file, the board file can change some parameters of SERDES
configuration.

This is needed on Turris Mox, where the SERDES speed on lane 1 has to
be set differently when SFP module is connected and when Topaz Switch
module is connected.

This is a temporary solution. When the comphy driver for armada-3720
will be added to the kernel, the comphy driver in u-boot shall also be
updated and this should be done differently then.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>

MAINTAINERS

@@ -139,7 +139,7 @@ S:	Maintained
 F:	arch/arm/cpu/armv8/hisilicon
 F:	arch/arm/include/asm/arch-hi6220/
 
-ARM MARVELL KIRKWOOD ARMADA-XP ARMADA-38X
+ARM MARVELL KIRKWOOD ARMADA-XP ARMADA-38X ARMADA-37XX
 M:	Prafulla Wadaskar <prafulla@marvell.com>
 M:	Luka Perkov <luka.perkov@sartura.hr>
 M:	Stefan Roese <sr@denx.de>
@@ -148,6 +148,7 @@ T:	git git://git.denx.de/u-boot-marvell.git
 F:	arch/arm/mach-kirkwood/
 F:	arch/arm/mach-mvebu/
 F:	drivers/ata/ahci_mvebu.c
+F:	drivers/phy/marvell/
 
 ARM MARVELL PXA
 M:	Marek Vasut <marex@denx.de>

drivers/phy/marvell/comphy_a3700.h

@@ -6,7 +6,7 @@
 #ifndef _COMPHY_A3700_H_
 #define _COMPHY_A3700_H_
 
-#include "comphy.h"
+#include "comphy_core.h"
 #include "comphy_hpipe.h"
 
 #define MVEBU_REG(offs)			\

drivers/phy/marvell/comphy_core.c

@@ -11,7 +11,7 @@
 #include <linux/errno.h>
 #include <asm/io.h>
 
-#include "comphy.h"
+#include "comphy_core.h"
 
 #define COMPHY_MAX_CHIP 4
 
@@ -66,6 +66,11 @@ void comphy_print(struct chip_serdes_phy_config *chip_cfg,
 	}
 }
 
+__weak int comphy_update_map(struct comphy_map *serdes_map, int count)
+{
+	return 0;
+}
+
 static int comphy_probe(struct udevice *dev)
 {
 	const void *blob = gd->fdt_blob;
@@ -76,6 +81,7 @@ static int comphy_probe(struct udevice *dev)
 	int lane;
 	int last_idx = 0;
 	static int current_idx;
+	int res;
 
 	/* Save base addresses for later use */
 	chip_cfg->comphy_base_addr = (void *)devfdt_get_addr_index(dev, 0);
@@ -143,6 +149,10 @@ static int comphy_probe(struct udevice *dev)
 		lane++;
 	}
 
+	res = comphy_update_map(comphy_map_data, chip_cfg->comphy_lanes_count);
+	if (res < 0)
+		return res;
+
 	/* Save CP index for MultiCP devices (A8K) */
 	chip_cfg->cp_index = current_idx++;
 	/* PHY power UP sequence */

drivers/phy/marvell/comphy_core.h

@@ -3,11 +3,11 @@
  * Copyright (C) 2015-2016 Marvell International Ltd.
  */
 
-#ifndef _COMPHY_H_
-#define _COMPHY_H_
+#ifndef _COMPHY_CORE_H_
+#define _COMPHY_CORE_H_
 
-#include <dt-bindings/comphy/comphy_data.h>
 #include <fdtdec.h>
+#include <mvebu/comphy.h>
 
 #if defined(DEBUG)
 #define debug_enter()	printf("----> Enter %s\n", __func__);
@@ -80,14 +80,6 @@ struct comphy_mux_data {
 	struct comphy_mux_options mux_values[MAX_LANE_OPTIONS];
 };
 
-struct comphy_map {
-	u32 type;
-	u32 speed;
-	u32 invert;
-	bool clk_src;
-	bool end_point;
-};
-
 struct chip_serdes_phy_config {
 	struct comphy_mux_data *mux_data;
 	int (*ptr_comphy_chip_init)(struct chip_serdes_phy_config *,
@@ -183,5 +175,5 @@ void comphy_pcie_config_detect(u32 comphy_max_count,
 			       struct comphy_map *serdes_map);
 void comphy_pcie_unit_general_config(u32 pex_index);
 
-#endif /* _COMPHY_H_ */
+#endif /* _COMPHY_CORE_H_ */
 

drivers/phy/marvell/comphy_cp110.c

@@ -9,7 +9,7 @@
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
 
-#include "comphy.h"
+#include "comphy_core.h"
 #include "comphy_hpipe.h"
 #include "sata.h"
 #include "utmi_phy.h"

drivers/phy/marvell/comphy_mux.c

@@ -6,7 +6,7 @@
 #include <common.h>
 #include <asm/io.h>
 
-#include "comphy.h"
+#include "comphy_core.h"
 #include "comphy_hpipe.h"
 
 /*

include/mvebu/comphy.h

@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2015-2016 Marvell International Ltd.
+ */
+
+#ifndef _MVEBU_COMPHY_H_
+#define _MVEBU_COMPHY_H_
+
+#include <dt-bindings/comphy/comphy_data.h>
+
+struct comphy_map {
+	u32 type;
+	u32 speed;
+	u32 invert;
+	bool clk_src;
+	bool end_point;
+};
+
+int comphy_update_map(struct comphy_map *serdes_map, int count);
+
+#endif /* _MVEBU_COMPHY_H_ */
+