diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch b/target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch new file mode 100644 index 0000000000..972cd07966 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch @@ -0,0 +1,97 @@ +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 +@@ -28,6 +28,9 @@ + + #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> +@@ -239,6 +242,12 @@ void __init plat_mem_setup(void) + mips_set_machine_name(bcm47xx_board_get_name()); + } + ++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) { +@@ -253,6 +262,7 @@ static int __init bcm47xx_register_bus_c + break; + #endif + } ++ fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status); + return 0; + } + device_initcall(bcm47xx_register_bus_complete); +--- 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 { |