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r8152: reset flow control patch when linking on for RTL8153B

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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>
This commit is contained in:
Hayes Wang 2020-01-22 16:02:06 +08:00 committed by David S. Miller
parent a39142728d
commit f99cd20eda
1 changed files with 11 additions and 0 deletions
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11
drivers/net/usb/r8152.c
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@ -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);
}