r8152: Disable PLA MCU clock speed down (08997b5e) · Commits · 戴 / test

drivers/net/usb/r8152.c

+17 −0

Original line number	Diff line number	Diff line
		@@ -324,6 +324,7 @@
		#define MAC_CLK_SPDWN_EN BIT(15)

		/* PLA_MAC_PWR_CTRL3 */
		#define PLA_MCU_SPDWN_EN BIT(14)
		#define PKT_AVAIL_SPDWN_EN 0x0100
		#define SUSPEND_SPDWN_EN 0x0004
		#define U1U2_SPDWN_EN 0x0002
		@@ -5005,6 +5006,8 @@ static void rtl8153_down(struct r8152 *tp)

		static void rtl8153b_up(struct r8152 *tp)
		{
		u32 ocp_data;

		if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

		@@ -5015,17 +5018,27 @@ static void rtl8153b_up(struct r8152 *tp)
		r8153_first_init(tp);
		ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_B);

		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
		ocp_data &= ~PLA_MCU_SPDWN_EN;
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);

		r8153_aldps_en(tp, true);
		r8153b_u1u2en(tp, true);
		}

		static void rtl8153b_down(struct r8152 *tp)
		{
		u32 ocp_data;

		if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
		rtl_drop_queued_tx(tp);
		return;
		}

		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
		ocp_data \|= PLA_MCU_SPDWN_EN;
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);

		r8153b_u1u2en(tp, false);
		r8153_u2p3en(tp, false);
		r8153b_power_cut_en(tp, false);
		@@ -5521,6 +5534,10 @@ static void r8153b_init(struct r8152 *tp)
		ocp_data \|= MAC_CLK_SPDWN_EN;
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, ocp_data);

		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
		ocp_data &= ~PLA_MCU_SPDWN_EN;
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);

		set_bit(GREEN_ETHERNET, &tp->flags);

		/* rx aggregation */