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authorHayes Wang <hayeswang@realtek.com>2020-01-22 11:02:06 +0300
committerDavid S. Miller <davem@davemloft.net>2020-01-23 13:20:57 +0300
commitf99cd20eda12b1920ffc284a736437c016b3a5a2 (patch)
tree4cbb08abaa36130f12726f35843177bca65395ac /drivers/net/usb
parenta39142728d0e60a76b67db3cbc187d61fde7b46d (diff)
downloadlinux-f99cd20eda12b1920ffc284a736437c016b3a5a2.tar.xz
r8152: reset flow control patch when linking on for RTL8153B
When linking ON, the patch of flow control has to be reset. This makes sure the patch works normally. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
-rw-r--r--drivers/net/usb/r8152.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 115559707683..504db2348a3e 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -2865,6 +2865,17 @@ static int rtl8153_enable(struct r8152 *tp)
r8153_set_rx_early_timeout(tp);
r8153_set_rx_early_size(tp);
+ if (tp->version == RTL_VER_09) {
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_TASK);
+ ocp_data &= ~FC_PATCH_TASK;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
+ usleep_range(1000, 2000);
+ ocp_data |= FC_PATCH_TASK;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
+ }
+
return rtl_enable(tp);
}