You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
2.2 KiB
Diff
77 lines
2.2 KiB
Diff
From c25b23b8a387e7d31f7a74af8e37b61e9e6ebb21 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
|
Date: Fri, 20 Mar 2015 23:14:31 +0100
|
|
Subject: [PATCH] bgmac: register fixed PHY for ARM BCM470X / BCM5301X chipsets
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
On ARM SoCs with bgmac Ethernet hardware we don't have any normal PHY.
|
|
There is always a switch attached but it's not even controlled over MDIO
|
|
like in case of MIPS devices.
|
|
We need a fixed PHY to be able to send/receive packets from the switch.
|
|
|
|
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
drivers/net/ethernet/broadcom/bgmac.c | 34 ++++++++++++++++++++++++++++++++++
|
|
1 file changed, 34 insertions(+)
|
|
|
|
--- a/drivers/net/ethernet/broadcom/bgmac.c
|
|
+++ b/drivers/net/ethernet/broadcom/bgmac.c
|
|
@@ -14,6 +14,7 @@
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/mii.h>
|
|
#include <linux/phy.h>
|
|
+#include <linux/phy_fixed.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <bcm47xx_nvram.h>
|
|
@@ -1330,13 +1331,46 @@ static void bgmac_adjust_link(struct net
|
|
}
|
|
}
|
|
|
|
+static int bgmac_fixed_phy_register(struct bgmac *bgmac)
|
|
+{
|
|
+ struct fixed_phy_status fphy_status = {
|
|
+ .link = 1,
|
|
+ .speed = SPEED_1000,
|
|
+ .duplex = DUPLEX_FULL,
|
|
+ };
|
|
+ struct phy_device *phy_dev;
|
|
+ int err;
|
|
+
|
|
+ phy_dev = fixed_phy_register(PHY_POLL, &fphy_status, NULL);
|
|
+ if (!phy_dev || IS_ERR(phy_dev)) {
|
|
+ bgmac_err(bgmac, "Failed to register fixed PHY device\n");
|
|
+ return -ENODEV;
|
|
+ }
|
|
+
|
|
+ err = phy_connect_direct(bgmac->net_dev, phy_dev, bgmac_adjust_link,
|
|
+ PHY_INTERFACE_MODE_MII);
|
|
+ if (err) {
|
|
+ bgmac_err(bgmac, "Connecting PHY failed\n");
|
|
+ return err;
|
|
+ }
|
|
+
|
|
+ bgmac->phy_dev = phy_dev;
|
|
+
|
|
+ return err;
|
|
+}
|
|
+
|
|
static int bgmac_mii_register(struct bgmac *bgmac)
|
|
{
|
|
+ struct bcma_chipinfo *ci = &bgmac->core->bus->chipinfo;
|
|
struct mii_bus *mii_bus;
|
|
struct phy_device *phy_dev;
|
|
char bus_id[MII_BUS_ID_SIZE + 3];
|
|
int i, err = 0;
|
|
|
|
+ if (ci->id == BCMA_CHIP_ID_BCM4707 ||
|
|
+ ci->id == BCMA_CHIP_ID_BCM53018)
|
|
+ return bgmac_fixed_phy_register(bgmac);
|
|
+
|
|
mii_bus = mdiobus_alloc();
|
|
if (!mii_bus)
|
|
return -ENOMEM;
|