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![Martin Schiller](/assets/img/avatar_default.png)
The Intel xway phys offer the possibility to deactivate the integrated LED function and to control the LEDs manually. If this was set by the bootloader, it must be ensured that the integrated LED function is enabled for all LEDs when loading the driver. Before commit6e2d85ec05
("net: phy: Stop with excessive soft reset") the LEDs were enabled by a soft-reset of the PHY (using genphy_soft_reset). Initialize the XWAY_MDIO_LED with it's default value (which is applied during a soft reset) instead of adding back the soft reset. This brings back the default LED configuration while still preventing an excessive amount of soft resets. Fixes:6e2d85ec05
("net: phy: Stop with excessive soft reset") Signed-off-by: Martin Schiller <ms@dev.tdt.de> Signed-off-by: David S. Miller <davem@davemloft.net>
399 lines
13 KiB
C
399 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2012 Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
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* Copyright (C) 2016 Hauke Mehrtens <hauke@hauke-m.de>
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*/
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#include <linux/mdio.h>
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#include <linux/module.h>
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#include <linux/phy.h>
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#include <linux/of.h>
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#define XWAY_MDIO_IMASK 0x19 /* interrupt mask */
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#define XWAY_MDIO_ISTAT 0x1A /* interrupt status */
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#define XWAY_MDIO_LED 0x1B /* led control */
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/* bit 15:12 are reserved */
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#define XWAY_MDIO_LED_LED3_EN BIT(11) /* Enable the integrated function of LED3 */
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#define XWAY_MDIO_LED_LED2_EN BIT(10) /* Enable the integrated function of LED2 */
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#define XWAY_MDIO_LED_LED1_EN BIT(9) /* Enable the integrated function of LED1 */
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#define XWAY_MDIO_LED_LED0_EN BIT(8) /* Enable the integrated function of LED0 */
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/* bit 7:4 are reserved */
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#define XWAY_MDIO_LED_LED3_DA BIT(3) /* Direct Access to LED3 */
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#define XWAY_MDIO_LED_LED2_DA BIT(2) /* Direct Access to LED2 */
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#define XWAY_MDIO_LED_LED1_DA BIT(1) /* Direct Access to LED1 */
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#define XWAY_MDIO_LED_LED0_DA BIT(0) /* Direct Access to LED0 */
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#define XWAY_MDIO_INIT_WOL BIT(15) /* Wake-On-LAN */
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#define XWAY_MDIO_INIT_MSRE BIT(14)
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#define XWAY_MDIO_INIT_NPRX BIT(13)
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#define XWAY_MDIO_INIT_NPTX BIT(12)
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#define XWAY_MDIO_INIT_ANE BIT(11) /* Auto-Neg error */
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#define XWAY_MDIO_INIT_ANC BIT(10) /* Auto-Neg complete */
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#define XWAY_MDIO_INIT_ADSC BIT(5) /* Link auto-downspeed detect */
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#define XWAY_MDIO_INIT_MPIPC BIT(4)
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#define XWAY_MDIO_INIT_MDIXC BIT(3)
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#define XWAY_MDIO_INIT_DXMC BIT(2) /* Duplex mode change */
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#define XWAY_MDIO_INIT_LSPC BIT(1) /* Link speed change */
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#define XWAY_MDIO_INIT_LSTC BIT(0) /* Link state change */
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#define XWAY_MDIO_INIT_MASK (XWAY_MDIO_INIT_LSTC | \
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XWAY_MDIO_INIT_ADSC)
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#define ADVERTISED_MPD BIT(10) /* Multi-port device */
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/* LED Configuration */
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#define XWAY_MMD_LEDCH 0x01E0
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/* Inverse of SCAN Function */
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#define XWAY_MMD_LEDCH_NACS_NONE 0x0000
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#define XWAY_MMD_LEDCH_NACS_LINK 0x0001
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#define XWAY_MMD_LEDCH_NACS_PDOWN 0x0002
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#define XWAY_MMD_LEDCH_NACS_EEE 0x0003
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#define XWAY_MMD_LEDCH_NACS_ANEG 0x0004
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#define XWAY_MMD_LEDCH_NACS_ABIST 0x0005
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#define XWAY_MMD_LEDCH_NACS_CDIAG 0x0006
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#define XWAY_MMD_LEDCH_NACS_TEST 0x0007
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/* Slow Blink Frequency */
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#define XWAY_MMD_LEDCH_SBF_F02HZ 0x0000
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#define XWAY_MMD_LEDCH_SBF_F04HZ 0x0010
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#define XWAY_MMD_LEDCH_SBF_F08HZ 0x0020
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#define XWAY_MMD_LEDCH_SBF_F16HZ 0x0030
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/* Fast Blink Frequency */
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#define XWAY_MMD_LEDCH_FBF_F02HZ 0x0000
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#define XWAY_MMD_LEDCH_FBF_F04HZ 0x0040
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#define XWAY_MMD_LEDCH_FBF_F08HZ 0x0080
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#define XWAY_MMD_LEDCH_FBF_F16HZ 0x00C0
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/* LED Configuration */
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#define XWAY_MMD_LEDCL 0x01E1
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/* Complex Blinking Configuration */
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#define XWAY_MMD_LEDCH_CBLINK_NONE 0x0000
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#define XWAY_MMD_LEDCH_CBLINK_LINK 0x0001
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#define XWAY_MMD_LEDCH_CBLINK_PDOWN 0x0002
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#define XWAY_MMD_LEDCH_CBLINK_EEE 0x0003
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#define XWAY_MMD_LEDCH_CBLINK_ANEG 0x0004
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#define XWAY_MMD_LEDCH_CBLINK_ABIST 0x0005
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#define XWAY_MMD_LEDCH_CBLINK_CDIAG 0x0006
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#define XWAY_MMD_LEDCH_CBLINK_TEST 0x0007
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/* Complex SCAN Configuration */
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#define XWAY_MMD_LEDCH_SCAN_NONE 0x0000
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#define XWAY_MMD_LEDCH_SCAN_LINK 0x0010
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#define XWAY_MMD_LEDCH_SCAN_PDOWN 0x0020
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#define XWAY_MMD_LEDCH_SCAN_EEE 0x0030
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#define XWAY_MMD_LEDCH_SCAN_ANEG 0x0040
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#define XWAY_MMD_LEDCH_SCAN_ABIST 0x0050
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#define XWAY_MMD_LEDCH_SCAN_CDIAG 0x0060
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#define XWAY_MMD_LEDCH_SCAN_TEST 0x0070
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/* Configuration for LED Pin x */
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#define XWAY_MMD_LED0H 0x01E2
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/* Fast Blinking Configuration */
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#define XWAY_MMD_LEDxH_BLINKF_MASK 0x000F
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#define XWAY_MMD_LEDxH_BLINKF_NONE 0x0000
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#define XWAY_MMD_LEDxH_BLINKF_LINK10 0x0001
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#define XWAY_MMD_LEDxH_BLINKF_LINK100 0x0002
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#define XWAY_MMD_LEDxH_BLINKF_LINK10X 0x0003
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#define XWAY_MMD_LEDxH_BLINKF_LINK1000 0x0004
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#define XWAY_MMD_LEDxH_BLINKF_LINK10_0 0x0005
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#define XWAY_MMD_LEDxH_BLINKF_LINK100X 0x0006
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#define XWAY_MMD_LEDxH_BLINKF_LINK10XX 0x0007
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#define XWAY_MMD_LEDxH_BLINKF_PDOWN 0x0008
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#define XWAY_MMD_LEDxH_BLINKF_EEE 0x0009
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#define XWAY_MMD_LEDxH_BLINKF_ANEG 0x000A
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#define XWAY_MMD_LEDxH_BLINKF_ABIST 0x000B
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#define XWAY_MMD_LEDxH_BLINKF_CDIAG 0x000C
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/* Constant On Configuration */
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#define XWAY_MMD_LEDxH_CON_MASK 0x00F0
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#define XWAY_MMD_LEDxH_CON_NONE 0x0000
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#define XWAY_MMD_LEDxH_CON_LINK10 0x0010
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#define XWAY_MMD_LEDxH_CON_LINK100 0x0020
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#define XWAY_MMD_LEDxH_CON_LINK10X 0x0030
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#define XWAY_MMD_LEDxH_CON_LINK1000 0x0040
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#define XWAY_MMD_LEDxH_CON_LINK10_0 0x0050
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#define XWAY_MMD_LEDxH_CON_LINK100X 0x0060
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#define XWAY_MMD_LEDxH_CON_LINK10XX 0x0070
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#define XWAY_MMD_LEDxH_CON_PDOWN 0x0080
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#define XWAY_MMD_LEDxH_CON_EEE 0x0090
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#define XWAY_MMD_LEDxH_CON_ANEG 0x00A0
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#define XWAY_MMD_LEDxH_CON_ABIST 0x00B0
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#define XWAY_MMD_LEDxH_CON_CDIAG 0x00C0
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#define XWAY_MMD_LEDxH_CON_COPPER 0x00D0
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#define XWAY_MMD_LEDxH_CON_FIBER 0x00E0
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/* Configuration for LED Pin x */
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#define XWAY_MMD_LED0L 0x01E3
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/* Pulsing Configuration */
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#define XWAY_MMD_LEDxL_PULSE_MASK 0x000F
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#define XWAY_MMD_LEDxL_PULSE_NONE 0x0000
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#define XWAY_MMD_LEDxL_PULSE_TXACT 0x0001
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#define XWAY_MMD_LEDxL_PULSE_RXACT 0x0002
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#define XWAY_MMD_LEDxL_PULSE_COL 0x0004
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/* Slow Blinking Configuration */
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#define XWAY_MMD_LEDxL_BLINKS_MASK 0x00F0
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#define XWAY_MMD_LEDxL_BLINKS_NONE 0x0000
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#define XWAY_MMD_LEDxL_BLINKS_LINK10 0x0010
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#define XWAY_MMD_LEDxL_BLINKS_LINK100 0x0020
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#define XWAY_MMD_LEDxL_BLINKS_LINK10X 0x0030
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#define XWAY_MMD_LEDxL_BLINKS_LINK1000 0x0040
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#define XWAY_MMD_LEDxL_BLINKS_LINK10_0 0x0050
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#define XWAY_MMD_LEDxL_BLINKS_LINK100X 0x0060
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#define XWAY_MMD_LEDxL_BLINKS_LINK10XX 0x0070
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#define XWAY_MMD_LEDxL_BLINKS_PDOWN 0x0080
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#define XWAY_MMD_LEDxL_BLINKS_EEE 0x0090
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#define XWAY_MMD_LEDxL_BLINKS_ANEG 0x00A0
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#define XWAY_MMD_LEDxL_BLINKS_ABIST 0x00B0
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#define XWAY_MMD_LEDxL_BLINKS_CDIAG 0x00C0
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#define XWAY_MMD_LED1H 0x01E4
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#define XWAY_MMD_LED1L 0x01E5
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#define XWAY_MMD_LED2H 0x01E6
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#define XWAY_MMD_LED2L 0x01E7
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#define XWAY_MMD_LED3H 0x01E8
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#define XWAY_MMD_LED3L 0x01E9
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#define PHY_ID_PHY11G_1_3 0x030260D1
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#define PHY_ID_PHY22F_1_3 0x030260E1
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#define PHY_ID_PHY11G_1_4 0xD565A400
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#define PHY_ID_PHY22F_1_4 0xD565A410
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#define PHY_ID_PHY11G_1_5 0xD565A401
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#define PHY_ID_PHY22F_1_5 0xD565A411
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#define PHY_ID_PHY11G_VR9_1_1 0xD565A408
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#define PHY_ID_PHY22F_VR9_1_1 0xD565A418
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#define PHY_ID_PHY11G_VR9_1_2 0xD565A409
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#define PHY_ID_PHY22F_VR9_1_2 0xD565A419
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static int xway_gphy_config_init(struct phy_device *phydev)
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{
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int err;
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u32 ledxh;
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u32 ledxl;
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/* Mask all interrupts */
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err = phy_write(phydev, XWAY_MDIO_IMASK, 0);
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if (err)
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return err;
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/* Clear all pending interrupts */
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phy_read(phydev, XWAY_MDIO_ISTAT);
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/* Ensure that integrated led function is enabled for all leds */
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err = phy_write(phydev, XWAY_MDIO_LED,
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XWAY_MDIO_LED_LED0_EN |
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XWAY_MDIO_LED_LED1_EN |
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XWAY_MDIO_LED_LED2_EN |
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XWAY_MDIO_LED_LED3_EN);
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if (err)
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return err;
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LEDCH,
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XWAY_MMD_LEDCH_NACS_NONE |
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XWAY_MMD_LEDCH_SBF_F02HZ |
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XWAY_MMD_LEDCH_FBF_F16HZ);
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LEDCL,
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XWAY_MMD_LEDCH_CBLINK_NONE |
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XWAY_MMD_LEDCH_SCAN_NONE);
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/**
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* In most cases only one LED is connected to this phy, so
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* configure them all to constant on and pulse mode. LED3 is
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* only available in some packages, leave it in its reset
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* configuration.
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*/
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ledxh = XWAY_MMD_LEDxH_BLINKF_NONE | XWAY_MMD_LEDxH_CON_LINK10XX;
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ledxl = XWAY_MMD_LEDxL_PULSE_TXACT | XWAY_MMD_LEDxL_PULSE_RXACT |
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XWAY_MMD_LEDxL_BLINKS_NONE;
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LED0H, ledxh);
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LED0L, ledxl);
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LED1H, ledxh);
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LED1L, ledxl);
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LED2H, ledxh);
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phy_write_mmd(phydev, MDIO_MMD_VEND2, XWAY_MMD_LED2L, ledxl);
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return 0;
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}
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static int xway_gphy14_config_aneg(struct phy_device *phydev)
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{
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int reg, err;
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/* Advertise as multi-port device, see IEEE802.3-2002 40.5.1.1 */
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/* This is a workaround for an errata in rev < 1.5 devices */
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reg = phy_read(phydev, MII_CTRL1000);
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reg |= ADVERTISED_MPD;
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err = phy_write(phydev, MII_CTRL1000, reg);
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if (err)
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return err;
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return genphy_config_aneg(phydev);
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}
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static int xway_gphy_ack_interrupt(struct phy_device *phydev)
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{
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int reg;
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reg = phy_read(phydev, XWAY_MDIO_ISTAT);
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return (reg < 0) ? reg : 0;
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}
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static int xway_gphy_config_intr(struct phy_device *phydev)
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{
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u16 mask = 0;
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int err;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
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err = xway_gphy_ack_interrupt(phydev);
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if (err)
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return err;
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mask = XWAY_MDIO_INIT_MASK;
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err = phy_write(phydev, XWAY_MDIO_IMASK, mask);
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} else {
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err = phy_write(phydev, XWAY_MDIO_IMASK, mask);
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if (err)
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return err;
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err = xway_gphy_ack_interrupt(phydev);
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}
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return err;
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}
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static irqreturn_t xway_gphy_handle_interrupt(struct phy_device *phydev)
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{
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int irq_status;
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irq_status = phy_read(phydev, XWAY_MDIO_ISTAT);
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if (irq_status < 0) {
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phy_error(phydev);
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return IRQ_NONE;
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}
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if (!(irq_status & XWAY_MDIO_INIT_MASK))
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return IRQ_NONE;
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phy_trigger_machine(phydev);
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return IRQ_HANDLED;
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}
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static struct phy_driver xway_gphy[] = {
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{
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.phy_id = PHY_ID_PHY11G_1_3,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.3",
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/* PHY_GBIT_FEATURES */
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.config_init = xway_gphy_config_init,
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.config_aneg = xway_gphy14_config_aneg,
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.handle_interrupt = xway_gphy_handle_interrupt,
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.config_intr = xway_gphy_config_intr,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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}, {
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.phy_id = PHY_ID_PHY22F_1_3,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY22F (PEF 7061) v1.3",
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/* PHY_BASIC_FEATURES */
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.config_init = xway_gphy_config_init,
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.config_aneg = xway_gphy14_config_aneg,
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.handle_interrupt = xway_gphy_handle_interrupt,
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.config_intr = xway_gphy_config_intr,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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}, {
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.phy_id = PHY_ID_PHY11G_1_4,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.4",
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/* PHY_GBIT_FEATURES */
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.config_init = xway_gphy_config_init,
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.config_aneg = xway_gphy14_config_aneg,
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.handle_interrupt = xway_gphy_handle_interrupt,
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.config_intr = xway_gphy_config_intr,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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}, {
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.phy_id = PHY_ID_PHY22F_1_4,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY22F (PEF 7061) v1.4",
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/* PHY_BASIC_FEATURES */
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.config_init = xway_gphy_config_init,
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.config_aneg = xway_gphy14_config_aneg,
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.handle_interrupt = xway_gphy_handle_interrupt,
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.config_intr = xway_gphy_config_intr,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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}, {
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.phy_id = PHY_ID_PHY11G_1_5,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.5 / v1.6",
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/* PHY_GBIT_FEATURES */
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.config_init = xway_gphy_config_init,
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.handle_interrupt = xway_gphy_handle_interrupt,
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.config_intr = xway_gphy_config_intr,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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}, {
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.phy_id = PHY_ID_PHY22F_1_5,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY22F (PEF 7061) v1.5 / v1.6",
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/* PHY_BASIC_FEATURES */
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.config_init = xway_gphy_config_init,
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.handle_interrupt = xway_gphy_handle_interrupt,
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.config_intr = xway_gphy_config_intr,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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}, {
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.phy_id = PHY_ID_PHY11G_VR9_1_1,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY11G (xRX v1.1 integrated)",
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/* PHY_GBIT_FEATURES */
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.config_init = xway_gphy_config_init,
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.handle_interrupt = xway_gphy_handle_interrupt,
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.config_intr = xway_gphy_config_intr,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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}, {
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.phy_id = PHY_ID_PHY22F_VR9_1_1,
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.phy_id_mask = 0xffffffff,
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.name = "Intel XWAY PHY22F (xRX v1.1 integrated)",
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/* PHY_BASIC_FEATURES */
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.config_init = xway_gphy_config_init,
|
|
.handle_interrupt = xway_gphy_handle_interrupt,
|
|
.config_intr = xway_gphy_config_intr,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
}, {
|
|
.phy_id = PHY_ID_PHY11G_VR9_1_2,
|
|
.phy_id_mask = 0xffffffff,
|
|
.name = "Intel XWAY PHY11G (xRX v1.2 integrated)",
|
|
/* PHY_GBIT_FEATURES */
|
|
.config_init = xway_gphy_config_init,
|
|
.handle_interrupt = xway_gphy_handle_interrupt,
|
|
.config_intr = xway_gphy_config_intr,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
}, {
|
|
.phy_id = PHY_ID_PHY22F_VR9_1_2,
|
|
.phy_id_mask = 0xffffffff,
|
|
.name = "Intel XWAY PHY22F (xRX v1.2 integrated)",
|
|
/* PHY_BASIC_FEATURES */
|
|
.config_init = xway_gphy_config_init,
|
|
.handle_interrupt = xway_gphy_handle_interrupt,
|
|
.config_intr = xway_gphy_config_intr,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
},
|
|
};
|
|
module_phy_driver(xway_gphy);
|
|
|
|
static struct mdio_device_id __maybe_unused xway_gphy_tbl[] = {
|
|
{ PHY_ID_PHY11G_1_3, 0xffffffff },
|
|
{ PHY_ID_PHY22F_1_3, 0xffffffff },
|
|
{ PHY_ID_PHY11G_1_4, 0xffffffff },
|
|
{ PHY_ID_PHY22F_1_4, 0xffffffff },
|
|
{ PHY_ID_PHY11G_1_5, 0xffffffff },
|
|
{ PHY_ID_PHY22F_1_5, 0xffffffff },
|
|
{ PHY_ID_PHY11G_VR9_1_1, 0xffffffff },
|
|
{ PHY_ID_PHY22F_VR9_1_1, 0xffffffff },
|
|
{ PHY_ID_PHY11G_VR9_1_2, 0xffffffff },
|
|
{ PHY_ID_PHY22F_VR9_1_2, 0xffffffff },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(mdio, xway_gphy_tbl);
|
|
|
|
MODULE_DESCRIPTION("Intel XWAY PHY driver");
|
|
MODULE_LICENSE("GPL");
|