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authorJohn Crispin <john@phrozen.org>2018-05-06 10:20:11 +0200
committerJohn Crispin <john@phrozen.org>2018-05-07 08:06:51 +0200
commit53c474abbdfef8eb3499e2d10c9ad491788b8a72 (patch)
treeacd19415420664f59bc63c1ceb4ad37bb7323027 /target/linux/ath79/patches-4.14/900-mdio_bitbang_ignore_ta_value.patch
parent3dc523f232ff01d31d59345f5fa6de508d5059ef (diff)
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ath79: add new OF only target for QCA MIPS silicon
This target aims to replace ar71xx mid-term. The big part that is still missing is making the MMIO/AHB wifi work using OF. NAND and mikrotik subtargets will follow. Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target/linux/ath79/patches-4.14/900-mdio_bitbang_ignore_ta_value.patch')
-rw-r--r--target/linux/ath79/patches-4.14/900-mdio_bitbang_ignore_ta_value.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-4.14/900-mdio_bitbang_ignore_ta_value.patch b/target/linux/ath79/patches-4.14/900-mdio_bitbang_ignore_ta_value.patch
new file mode 100644
index 0000000000..8f8f349a66
--- /dev/null
+++ b/target/linux/ath79/patches-4.14/900-mdio_bitbang_ignore_ta_value.patch
@@ -0,0 +1,32 @@
+--- 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
+ 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);
+@@ -165,19 +165,7 @@ static int mdiobb_read(struct mii_bus *b
+
+ ctrl->ops->set_mdio_dir(ctrl, 0);
+
+- /* check the turnaround bit: the PHY should be driving it to zero, if this
+- * PHY is listed in phy_ignore_ta_mask as having broken TA, skip that
+- */
+- if (mdiobb_get_bit(ctrl) != 0 &&
+- !(bus->phy_ignore_ta_mask & (1 << phy))) {
+- /* 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);