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Commit 3a128650 authored by Hayes Wang's avatar Hayes Wang Committed by Greg Kroah-Hartman
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r8152: disable test IO for RTL8153B 



[ Upstream commit d7f1b59655efb5a285d227c8f9853a98eab5c2fd ]

For RTL8153B with QFN32, disable test IO. Otherwise, it may cause
abnormal behavior for the device randomly.

Signed-off-by: default avatarHayes Wang <hayeswang@realtek.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent bc2ef2e9

drivers/net/usb/r8152.c

+10 −0
Original line number Diff line number Diff line
@@ -298,6 +298,7 @@ 
/* PLA_PHY_PWR */

#define TX_10M_IDLE_EN		0x0080

#define PFM_PWM_SWITCH		0x0040

#define TEST_IO_OFF		BIT(4)



/* PLA_MAC_PWR_CTRL */

#define D3_CLK_GATED_EN		0x00004000
@@ -4540,6 +4541,15 @@ static void r8153b_init(struct r8152 *tp) 
	ocp_data &= ~PLA_MCU_SPDWN_EN;

	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);



	if (tp->version == RTL_VER_09) {

		/* Disable Test IO for 32QFN */

		if (ocp_read_byte(tp, MCU_TYPE_PLA, 0xdc00) & BIT(5)) {

			ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);

			ocp_data |= TEST_IO_OFF;

			ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);

		}

	}



	set_bit(GREEN_ETHERNET, &tp->flags);



	/* rx aggregation */