netdev - [PATCH net-next 8/8] ARM: orion: Register DSA switch as a MDIO device

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Date:   Tue, 10 Jan 2017 12:12:35 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Jason Cooper <jason@...edaemon.net>,
        Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory Clement <gregory.clement@...e-electrons.com>,
        Russell King <linux@...linux.org.uk>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        "David S. Miller" <davem@...emloft.net>,
        Philippe Reynes <tremyfr@...il.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Stuart Yoder <stuart.yoder@....com>,
        Ingo Tuchscherer <ingo.tuchscherer@...ux.vnet.ibm.com>,
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Marvell
        Dove/MV78xx0/Orion SOC support),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net-next 8/8] ARM: orion: Register DSA switch as a MDIO device

Utilize the ability to pass board specific MDIO bus information towards a
particular MDIO device thus allowing us to provide the per-port switch layout
to the Marvell 88E6XXX switch driver.

Since we would end-up with conflicting registration paths, do not register the
"dsa" platform device anymore.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 arch/arm/plat-orion/common.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index 272f49b2c68f..1d8f4ad1ac9a 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -22,6 +22,7 @@
 #include <linux/platform_data/dma-mv_xor.h>
 #include <linux/platform_data/usb-ehci-orion.h>
 #include <plat/common.h>
+#include <linux/phy.h>
 
 /* Create a clkdev entry for a given device/clk */
 void __init orion_clkdev_add(const char *con_id, const char *dev_id,
@@ -470,15 +471,27 @@ void __init orion_ge11_init(struct mv643xx_eth_platform_data *eth_data,
 /*****************************************************************************
  * Ethernet switch
  ****************************************************************************/
+static __initdata const char *orion_ge00_mvmdio_bus_name = "orion-mii";
+static __initdata struct mdio_board_info
+		  orion_ge00_switch_board_info[DSA_MAX_SWITCHES];
+
 void __init orion_ge00_switch_init(struct dsa_platform_data *d)
 {
+	struct mdio_board_info *bd;
 	int i;
 
 	d->netdev = &orion_ge00.dev;
-	for (i = 0; i < d->nr_chips; i++)
-		d->chip[i].host_dev = &orion_ge_mvmdio.dev;
+	for (i = 0; i < d->nr_chips; i++) {
+		bd = &orion_ge00_switch_board_info[i];
+		bd->bus_id = orion_ge00_mvmdio_bus_name;
+		bd->mdio_addr = d->chip[i].sw_addr;
+		strcpy(bd->modalias, "mv88e6085");
+		bd->platform_data = d;
+	}
+
+	mdiobus_register_board_info(orion_ge00_switch_board_info,
+				    ARRAY_SIZE(orion_ge00_switch_board_info));
 
-	platform_device_register_data(NULL, "dsa", 0, d, sizeof(d));
 }
 
 /*****************************************************************************
-- 
2.9.3