98 lines
3.1 KiB
Diff
98 lines
3.1 KiB
Diff
From b04138b335203b79ffe1b14750fa245a4dab7191 Mon Sep 17 00:00:00 2001
|
|
From: Hauke Mehrtens <hauke@hauke-m.de>
|
|
Date: Fri, 20 Dec 2013 02:16:13 +0100
|
|
Subject: [PATCH 208/208] b44: use fixed PHY device if we do not find any
|
|
|
|
The ADM6996L switch and some Broadcom switches with two MII interfaces
|
|
like the BCM5325F connected to two MACs on the SoC, used on some
|
|
routers do not return a valid value when reading the PHY id register
|
|
and Linux thinks there is no PHY at all, but that is wrong.
|
|
This patch registers a fixed phy in the arch code and then searches it
|
|
when there is no other phy in the Ethernet driver code.
|
|
|
|
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
arch/mips/bcm47xx/setup.c | 10 ++++++++++
|
|
drivers/net/ethernet/broadcom/b44.c | 16 +++++++++++++++-
|
|
drivers/net/ethernet/broadcom/b44.h | 3 +++
|
|
3 files changed, 28 insertions(+), 1 deletion(-)
|
|
|
|
--- a/arch/mips/bcm47xx/setup.c
|
|
+++ b/arch/mips/bcm47xx/setup.c
|
|
@@ -30,6 +30,9 @@
|
|
|
|
#include <linux/export.h>
|
|
#include <linux/types.h>
|
|
+#include <linux/ethtool.h>
|
|
+#include <linux/phy.h>
|
|
+#include <linux/phy_fixed.h>
|
|
#include <linux/ssb/ssb.h>
|
|
#include <linux/ssb/ssb_embedded.h>
|
|
#include <linux/bcma/bcma_soc.h>
|
|
@@ -266,6 +269,12 @@ static int __init bcm47xx_cpu_fixes(void
|
|
}
|
|
arch_initcall(bcm47xx_cpu_fixes);
|
|
|
|
+static struct fixed_phy_status bcm47xx_fixed_phy_status __initdata = {
|
|
+ .link = 1,
|
|
+ .speed = SPEED_100,
|
|
+ .duplex = DUPLEX_FULL,
|
|
+};
|
|
+
|
|
static int __init bcm47xx_register_bus_complete(void)
|
|
{
|
|
switch (bcm47xx_bus_type) {
|
|
@@ -284,6 +293,7 @@ static int __init bcm47xx_register_bus_c
|
|
bcm47xx_buttons_register();
|
|
bcm47xx_leds_register();
|
|
bcm47xx_workarounds();
|
|
+ fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
|
|
|
|
return 0;
|
|
}
|
|
--- a/drivers/net/ethernet/broadcom/b44.c
|
|
+++ b/drivers/net/ethernet/broadcom/b44.c
|
|
@@ -2233,6 +2233,7 @@ static int b44_register_phy_one(struct b
|
|
struct ssb_device *sdev = bp->sdev;
|
|
struct phy_device *phydev;
|
|
char bus_id[MII_BUS_ID_SIZE + 3];
|
|
+ struct ssb_sprom *sprom = &sdev->bus->sprom;
|
|
int err;
|
|
|
|
mii_bus = mdiobus_alloc();
|
|
@@ -2266,7 +2267,20 @@ static int b44_register_phy_one(struct b
|
|
goto err_out_mdiobus_irq;
|
|
}
|
|
|
|
- snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, mii_bus->id, bp->phy_addr);
|
|
+ if (!bp->mii_bus->phy_map[bp->phy_addr] &&
|
|
+ (sprom->boardflags_lo & (B44_BOARDFLAG_ROBO | B44_BOARDFLAG_ADM))) {
|
|
+
|
|
+ dev_info(sdev->dev,
|
|
+ "could not find PHY at %i, use fixed one\n",
|
|
+ bp->phy_addr);
|
|
+
|
|
+ bp->phy_addr = 0;
|
|
+ snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, "fixed-0",
|
|
+ bp->phy_addr);
|
|
+ } else {
|
|
+ snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, mii_bus->id,
|
|
+ bp->phy_addr);
|
|
+ }
|
|
|
|
phydev = phy_connect(bp->dev, bus_id, &b44_adjust_link,
|
|
PHY_INTERFACE_MODE_MII);
|
|
--- a/drivers/net/ethernet/broadcom/b44.h
|
|
+++ b/drivers/net/ethernet/broadcom/b44.h
|
|
@@ -345,6 +345,9 @@ B44_STAT_REG_DECLARE
|
|
struct u64_stats_sync syncp;
|
|
};
|
|
|
|
+#define B44_BOARDFLAG_ROBO 0x0010 /* Board has robo switch */
|
|
+#define B44_BOARDFLAG_ADM 0x0080 /* Board has ADMtek switch */
|
|
+
|
|
struct ssb_device;
|
|
|
|
struct b44 {
|