diff options
Diffstat (limited to 'target/mips/mikrotik-rb4xx/patches/3.14.43/0016-phy-mdio-bitbang-ignore-TA-value.patch')
| -rw-r--r-- | target/mips/mikrotik-rb4xx/patches/3.14.43/0016-phy-mdio-bitbang-ignore-TA-value.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/target/mips/mikrotik-rb4xx/patches/3.14.43/0016-phy-mdio-bitbang-ignore-TA-value.patch b/target/mips/mikrotik-rb4xx/patches/3.14.43/0016-phy-mdio-bitbang-ignore-TA-value.patch new file mode 100644 index 000000000..fe23f4912 --- /dev/null +++ b/target/mips/mikrotik-rb4xx/patches/3.14.43/0016-phy-mdio-bitbang-ignore-TA-value.patch @@ -0,0 +1,44 @@ +From e73f7d9a658c7fc693a9b9c45a1f65c014dd6e40 Mon Sep 17 00:00:00 2001 +From: Phil Sutter <phil@nwl.cc> +Date: Tue, 13 May 2014 01:17:38 +0200 +Subject: [PATCH] phy: mdio-bitbang: ignore TA value + +This is necessary on rb493g to make the kernel detect the second switch. +--- + drivers/net/phy/mdio-bitbang.c | 13 ++----------- + 1 file changed, 2 insertions(+), 11 deletions(-) + +diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c +index daec9b0..4fa2be0 100644 +--- a/drivers/net/phy/mdio-bitbang.c ++++ b/drivers/net/phy/mdio-bitbang.c +@@ -155,7 +155,7 @@ static int mdiobb_cmd_addr(struct mdiobb_ctrl *ctrl, int phy, u32 addr) + static int mdiobb_read(struct mii_bus *bus, int phy, int reg) + { + struct mdiobb_ctrl *ctrl = bus->priv; +- int ret, i; ++ int ret; + + if (reg & MII_ADDR_C45) { + reg = mdiobb_cmd_addr(ctrl, phy, reg); +@@ -165,16 +165,7 @@ static int mdiobb_read(struct mii_bus *bus, int phy, int reg) + + ctrl->ops->set_mdio_dir(ctrl, 0); + +- /* check the turnaround bit: the PHY should be driving it to zero */ +- if (mdiobb_get_bit(ctrl) != 0) { +- /* PHY didn't drive TA low -- flush any bits it +- * may be trying to send. +- */ +- for (i = 0; i < 32; i++) +- mdiobb_get_bit(ctrl); +- +- return 0xffff; +- } ++ mdiobb_get_bit(ctrl); + + ret = mdiobb_get_num(ctrl, 16); + mdiobb_get_bit(ctrl); +-- +1.8.5.3 + |