[PATCH net 2/9] r8152: reset flow control patch when linking on for RTL8153B
From: Hayes Wang <hidden>
Date: 2020-01-21 12:43:36
Also in:
linux-usb, lkml
Subsystem:
networking drivers, the rest, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
When linking ON, the patch of flow control has to be reset. This makes sure the patch works normally. Signed-off-by: Hayes Wang <redacted> --- drivers/net/usb/r8152.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 115559707683..64efd58279b3 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c@@ -2857,6 +2857,7 @@ static void r8153_set_rx_early_size(struct r8152 *tp) static int rtl8153_enable(struct r8152 *tp) { + u32 ocp_data; if (test_bit(RTL8152_UNPLUG, &tp->flags)) return -ENODEV;
@@ -2865,6 +2866,15 @@ 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) { + 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); }
--
2.21.0