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net: phy: mscc: add support for VSC8584 PHY
The VSC8584 PHY is a 4-ports PHY that is 10/100/1000BASE-T, 100BASE-FX, 1000BASE-X and triple-speed copper SFP capable, can communicate with the MAC via SGMII, QSGMII or 1000BASE-X, supports downshifting and can set the blinking pattern of each of its 4 LEDs, supports hardware offloading of MACsec and supports SyncE as well as HP Auto-MDIX detection. This adds support for 10/100/1000BASE-T, SGMII/QSGMII link with the MAC, downshifting, HP Auto-MDIX detection and blinking pattern for its 4 LEDs. The VSC8584 has also an internal Intel 8051 microcontroller whose firmware needs to be patched when the PHY is reset. If the 8051's firmware has the expected CRC, its patching can be skipped. The microcontroller can be accessed from any port of the PHY, though the CRC function can only be done through the PHY that is the base PHY of the package (internal address 0) due to a limitation of the firmware. The GPIO register bank is a set of registers that are common to all PHYs in the package. So any modification in any register of this bank affects all PHYs of the package. If the PHYs haven't been reset before booting the Linux kernel and were configured to use interrupts for e.g. link status updates, it is required to clear the interrupts mask register of all PHYs before being able to use interrupts with any PHY. The first PHY of the package that will be init will take care of clearing all PHYs interrupts mask registers. Thus, we need to keep track of the init sequence in the package, if it's already been done or if it's to be done. Most of the init sequence of a PHY of the package is common to all PHYs in the package, thus we use the SMI broadcast feature which enables us to propagate a write in one register of one PHY to all PHYs in the same package. The revA of the VSC8584 PHY (which is not and will not be publicly released) should NOT patch the firmware of the microcontroller or it'll make things worse, the easiest way is just to not support it. Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Quentin Schulz
David S. Miller
parent
9494a6c2e4
commit
a5afc16780
@ -6,6 +6,8 @@
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* Copyright (c) 2016 Microsemi Corporation
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*/
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#include <linux/firmware.h>
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#include <linux/jiffies.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mdio.h>
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@ -32,6 +34,10 @@ enum rgmii_rx_clock_delay {
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#define DISABLE_HP_AUTO_MDIX_MASK 0x0080
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#define DISABLE_PAIR_SWAP_CORR_MASK 0x0020
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#define DISABLE_POLARITY_CORR_MASK 0x0010
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#define PARALLEL_DET_IGNORE_ADVERTISED 0x0008
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#define MSCC_PHY_EXT_CNTL_STATUS 22
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#define SMI_BROADCAST_WR_EN 0x0001
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#define MSCC_PHY_ERR_RX_CNT 19
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#define MSCC_PHY_ERR_FALSE_CARRIER_CNT 20
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@ -44,7 +50,20 @@ enum rgmii_rx_clock_delay {
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#define MAC_IF_SELECTION_RMII 1
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#define MAC_IF_SELECTION_RGMII 2
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#define MAC_IF_SELECTION_POS 11
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#define VSC8584_MAC_IF_SELECTION_MASK 0x1000
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#define VSC8584_MAC_IF_SELECTION_SGMII 0
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#define VSC8584_MAC_IF_SELECTION_1000BASEX 1
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#define VSC8584_MAC_IF_SELECTION_POS 12
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#define FAR_END_LOOPBACK_MODE_MASK 0x0008
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#define MEDIA_OP_MODE_MASK 0x0700
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#define MEDIA_OP_MODE_COPPER 0
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#define MEDIA_OP_MODE_SERDES 1
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#define MEDIA_OP_MODE_1000BASEX 2
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#define MEDIA_OP_MODE_100BASEFX 3
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#define MEDIA_OP_MODE_AMS_COPPER_SERDES 5
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#define MEDIA_OP_MODE_AMS_COPPER_1000BASEX 6
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#define MEDIA_OP_MODE_AMS_COPPER_100BASEFX 7
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#define MEDIA_OP_MODE_POS 8
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#define MII_VSC85XX_INT_MASK 25
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#define MII_VSC85XX_INT_MASK_MASK 0xa000
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@ -67,6 +86,13 @@ enum rgmii_rx_clock_delay {
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#define MSCC_PHY_PAGE_STANDARD 0x0000 /* Standard registers */
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#define MSCC_PHY_PAGE_EXTENDED 0x0001 /* Extended registers */
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#define MSCC_PHY_PAGE_EXTENDED_2 0x0002 /* Extended reg - page 2 */
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#define MSCC_PHY_PAGE_EXTENDED_3 0x0003 /* Extended reg - page 3 */
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#define MSCC_PHY_PAGE_EXTENDED_4 0x0004 /* Extended reg - page 4 */
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/* Extended reg - GPIO; this is a bank of registers that are shared for all PHYs
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* in the same package.
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*/
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#define MSCC_PHY_PAGE_EXTENDED_GPIO 0x0010 /* Extended reg - GPIO */
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#define MSCC_PHY_PAGE_TEST 0x2a30 /* Test reg */
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#define MSCC_PHY_PAGE_TR 0x52b5 /* Token ring registers */
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/* Extended Page 1 Registers */
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@ -79,13 +105,21 @@ enum rgmii_rx_clock_delay {
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#define FORCE_MDI_CROSSOVER_MDI 0x0008
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#define MSCC_PHY_ACTIPHY_CNTL 20
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#define PHY_ADDR_REVERSED 0x0200
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#define DOWNSHIFT_CNTL_MASK 0x001C
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#define DOWNSHIFT_EN 0x0010
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#define DOWNSHIFT_CNTL_POS 2
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#define MSCC_PHY_EXT_PHY_CNTL_4 23
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#define PHY_CNTL_4_ADDR_POS 11
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#define MSCC_PHY_VERIPHY_CNTL_2 25
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#define MSCC_PHY_VERIPHY_CNTL_3 26
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/* Extended Page 2 Registers */
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#define MSCC_PHY_CU_PMD_TX_CNTL 16
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#define MSCC_PHY_RGMII_CNTL 20
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#define RGMII_RX_CLK_DELAY_MASK 0x0070
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#define RGMII_RX_CLK_DELAY_POS 4
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@ -101,6 +135,70 @@ enum rgmii_rx_clock_delay {
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#define SECURE_ON_ENABLE 0x8000
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#define SECURE_ON_PASSWD_LEN_4 0x4000
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/* Extended Page 3 Registers */
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#define MSCC_PHY_SERDES_TX_VALID_CNT 21
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#define MSCC_PHY_SERDES_TX_CRC_ERR_CNT 22
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#define MSCC_PHY_SERDES_RX_VALID_CNT 28
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#define MSCC_PHY_SERDES_RX_CRC_ERR_CNT 29
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/* Extended page GPIO Registers */
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#define MSCC_DW8051_CNTL_STATUS 0
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#define MICRO_NSOFT_RESET 0x8000
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#define RUN_FROM_INT_ROM 0x4000
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#define AUTOINC_ADDR 0x2000
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#define PATCH_RAM_CLK 0x1000
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#define MICRO_PATCH_EN 0x0080
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#define DW8051_CLK_EN 0x0010
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#define MICRO_CLK_EN 0x0008
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#define MICRO_CLK_DIVIDE(x) ((x) >> 1)
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/* x Address in range 1-4 */
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#define MSCC_TRAP_ROM_ADDR(x) ((x) * 2 + 1)
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#define MSCC_PATCH_RAM_ADDR(x) (((x) + 1) * 2)
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#define MSCC_INT_MEM_ADDR 11
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#define MSCC_INT_MEM_CNTL 12
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#define READ_SFR 0x6000
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#define READ_PRAM 0x4000
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#define READ_ROM 0x2000
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#define READ_RAM 0x0000
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#define INT_MEM_WRITE_EN 0x1000
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#define EN_PATCH_RAM_TRAP_ADDR(x) (0x0100 << ((x) - 1))
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#define INT_MEM_DATA_M 0x00ff
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#define INT_MEM_DATA(x) (INT_MEM_DATA_M & (x))
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#define MSCC_PHY_PROC_CMD 18
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#define PROC_CMD_NCOMPLETED 0x8000
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#define PROC_CMD_FAILED 0x4000
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#define PROC_CMD_SGMII_PORT(x) ((x) << 8)
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#define PROC_CMD_FIBER_PORT(x) (0x0100 << (x) % 4)
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#define PROC_CMD_QSGMII_PORT 0x0c00
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#define PROC_CMD_RST_CONF_PORT 0x0080
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#define PROC_CMD_RECONF_PORT 0x0000
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#define PROC_CMD_READ_MOD_WRITE_PORT 0x0040
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#define PROC_CMD_WRITE 0x0040
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#define PROC_CMD_READ 0x0000
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#define PROC_CMD_FIBER_DISABLE 0x0020
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#define PROC_CMD_FIBER_100BASE_FX 0x0010
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#define PROC_CMD_FIBER_1000BASE_X 0x0000
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#define PROC_CMD_SGMII_MAC 0x0030
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#define PROC_CMD_QSGMII_MAC 0x0020
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#define PROC_CMD_NO_MAC_CONF 0x0000
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#define PROC_CMD_NOP 0x000f
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#define PROC_CMD_CRC16 0x0008
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#define PROC_CMD_FIBER_MEDIA_CONF 0x0001
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#define PROC_CMD_MCB_ACCESS_MAC_CONF 0x0000
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#define PROC_CMD_NCOMPLETED_TIMEOUT_MS 500
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#define MSCC_PHY_MAC_CFG_FASTLINK 19
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#define MAC_CFG_MASK 0xc000
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#define MAC_CFG_SGMII 0x0000
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#define MAC_CFG_QSGMII 0x4000
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/* Test page Registers */
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#define MSCC_PHY_TEST_PAGE_5 5
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#define MSCC_PHY_TEST_PAGE_8 8
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/* Token ring page Registers */
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#define MSCC_PHY_TR_CNTL 16
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#define TR_WRITE 0x8000
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@ -113,6 +211,7 @@ enum rgmii_rx_clock_delay {
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#define PHY_ID_VSC8531 0x00070570
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#define PHY_ID_VSC8540 0x00070760
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#define PHY_ID_VSC8541 0x00070770
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#define PHY_ID_VSC8584 0x000707c0
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#define MSCC_VDDMAC_1500 1500
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#define MSCC_VDDMAC_1800 1800
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@ -122,6 +221,24 @@ enum rgmii_rx_clock_delay {
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#define DOWNSHIFT_COUNT_MAX 5
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#define MAX_LEDS 4
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#define VSC8584_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \
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BIT(VSC8531_LINK_1000_ACTIVITY) | \
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BIT(VSC8531_LINK_100_ACTIVITY) | \
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BIT(VSC8531_LINK_10_ACTIVITY) | \
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BIT(VSC8531_LINK_100_1000_ACTIVITY) | \
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BIT(VSC8531_LINK_10_1000_ACTIVITY) | \
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BIT(VSC8531_LINK_10_100_ACTIVITY) | \
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BIT(VSC8584_LINK_100FX_1000X_ACTIVITY) | \
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BIT(VSC8531_DUPLEX_COLLISION) | \
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BIT(VSC8531_COLLISION) | \
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BIT(VSC8531_ACTIVITY) | \
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BIT(VSC8584_100FX_1000X_ACTIVITY) | \
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BIT(VSC8531_AUTONEG_FAULT) | \
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BIT(VSC8531_SERIAL_MODE) | \
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BIT(VSC8531_FORCE_LED_OFF) | \
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BIT(VSC8531_FORCE_LED_ON))
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#define VSC85XX_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \
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BIT(VSC8531_LINK_1000_ACTIVITY) | \
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BIT(VSC8531_LINK_100_ACTIVITY) | \
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@ -137,6 +254,13 @@ enum rgmii_rx_clock_delay {
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BIT(VSC8531_FORCE_LED_OFF) | \
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BIT(VSC8531_FORCE_LED_ON))
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#define MSCC_VSC8584_REVB_INT8051_FW "mscc_vsc8584_revb_int8051_fb48.bin"
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#define MSCC_VSC8584_REVB_INT8051_FW_START_ADDR 0xe800
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#define MSCC_VSC8584_REVB_INT8051_FW_CRC 0xfb48
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#define VSC8584_REVB 0x0001
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#define MSCC_DEV_REV_MASK GENMASK(3, 0)
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struct reg_val {
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u16 reg;
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u32 val;
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@ -178,6 +302,55 @@ static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = {
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},
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};
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static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = {
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{
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.string = "phy_receive_errors",
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.reg = MSCC_PHY_ERR_RX_CNT,
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.page = MSCC_PHY_PAGE_STANDARD,
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.mask = ERR_CNT_MASK,
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}, {
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.string = "phy_false_carrier",
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.reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT,
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.page = MSCC_PHY_PAGE_STANDARD,
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.mask = ERR_CNT_MASK,
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}, {
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.string = "phy_cu_media_link_disconnect",
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.reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
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.page = MSCC_PHY_PAGE_STANDARD,
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.mask = ERR_CNT_MASK,
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}, {
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.string = "phy_cu_media_crc_good_count",
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.reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
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.page = MSCC_PHY_PAGE_EXTENDED,
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.mask = VALID_CRC_CNT_CRC_MASK,
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}, {
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.string = "phy_cu_media_crc_error_count",
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.reg = MSCC_PHY_EXT_PHY_CNTL_4,
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.page = MSCC_PHY_PAGE_EXTENDED,
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.mask = ERR_CNT_MASK,
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}, {
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.string = "phy_serdes_tx_good_pkt_count",
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.reg = MSCC_PHY_SERDES_TX_VALID_CNT,
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.page = MSCC_PHY_PAGE_EXTENDED_3,
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.mask = VALID_CRC_CNT_CRC_MASK,
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}, {
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.string = "phy_serdes_tx_bad_crc_count",
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.reg = MSCC_PHY_SERDES_TX_CRC_ERR_CNT,
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.page = MSCC_PHY_PAGE_EXTENDED_3,
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.mask = ERR_CNT_MASK,
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}, {
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.string = "phy_serdes_rx_good_pkt_count",
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.reg = MSCC_PHY_SERDES_RX_VALID_CNT,
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.page = MSCC_PHY_PAGE_EXTENDED_3,
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.mask = VALID_CRC_CNT_CRC_MASK,
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}, {
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.string = "phy_serdes_rx_bad_crc_count",
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.reg = MSCC_PHY_SERDES_RX_CRC_ERR_CNT,
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.page = MSCC_PHY_PAGE_EXTENDED_3,
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.mask = ERR_CNT_MASK,
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},
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};
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struct vsc8531_private {
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int rate_magic;
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u16 supp_led_modes;
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@ -186,6 +359,11 @@ struct vsc8531_private {
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const struct vsc85xx_hw_stat *hw_stats;
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u64 *stats;
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int nstats;
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bool pkg_init;
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/* For multiple port PHYs; the MDIO address of the base PHY in the
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* package.
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*/
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unsigned int base_addr;
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};
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#ifdef CONFIG_OF_MDIO
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@ -706,6 +884,509 @@ out_unlock:
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return oldpage;
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}
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/* phydev->bus->mdio_lock should be locked when using this function */
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static int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val)
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{
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struct vsc8531_private *priv = phydev->priv;
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if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
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dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
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dump_stack();
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}
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return __mdiobus_write(phydev->mdio.bus, priv->base_addr, regnum, val);
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}
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/* phydev->bus->mdio_lock should be locked when using this function */
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static int phy_base_read(struct phy_device *phydev, u32 regnum)
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{
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struct vsc8531_private *priv = phydev->priv;
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if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
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dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
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dump_stack();
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}
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return __mdiobus_read(phydev->mdio.bus, priv->base_addr, regnum);
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}
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/* bus->mdio_lock should be locked when using this function */
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static void vsc8584_csr_write(struct phy_device *phydev, u16 addr, u32 val)
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{
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phy_base_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
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phy_base_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
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phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
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}
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/* bus->mdio_lock should be locked when using this function */
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static int vsc8584_cmd(struct phy_device *phydev, u16 val)
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{
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unsigned long deadline;
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u16 reg_val;
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phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
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MSCC_PHY_PAGE_EXTENDED_GPIO);
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phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NCOMPLETED | val);
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deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
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do {
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reg_val = phy_base_read(phydev, MSCC_PHY_PROC_CMD);
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} while (time_before(jiffies, deadline) &&
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(reg_val & PROC_CMD_NCOMPLETED) &&
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!(reg_val & PROC_CMD_FAILED));
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phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
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if (reg_val & PROC_CMD_FAILED)
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return -EIO;
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if (reg_val & PROC_CMD_NCOMPLETED)
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return -ETIMEDOUT;
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return 0;
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}
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/* bus->mdio_lock should be locked when using this function */
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static int vsc8584_micro_deassert_reset(struct phy_device *phydev,
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bool patch_en)
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{
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u32 enable, release;
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phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
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MSCC_PHY_PAGE_EXTENDED_GPIO);
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enable = RUN_FROM_INT_ROM | MICRO_CLK_EN | DW8051_CLK_EN;
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release = MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
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MICRO_CLK_EN;
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if (patch_en) {
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enable |= MICRO_PATCH_EN;
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release |= MICRO_PATCH_EN;
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/* Clear all patches */
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phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
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}
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/* Enable 8051 Micro clock; CLEAR/SET patch present; disable PRAM clock
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* override and addr. auto-incr; operate at 125 MHz
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*/
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phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, enable);
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/* Release 8051 Micro SW reset */
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phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, release);
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phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
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return 0;
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}
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/* bus->mdio_lock should be locked when using this function */
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static int vsc8584_micro_assert_reset(struct phy_device *phydev)
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{
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int ret;
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u16 reg;
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ret = vsc8584_cmd(phydev, PROC_CMD_NOP);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
|
||||
MSCC_PHY_PAGE_EXTENDED_GPIO);
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
|
||||
reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
|
||||
phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
|
||||
|
||||
phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(4), 0x005b);
|
||||
phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(4), 0x005b);
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
|
||||
reg |= EN_PATCH_RAM_TRAP_ADDR(4);
|
||||
phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NOP);
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
|
||||
reg &= ~MICRO_NSOFT_RESET;
|
||||
phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, reg);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_MCB_ACCESS_MAC_CONF |
|
||||
PROC_CMD_SGMII_PORT(0) | PROC_CMD_NO_MAC_CONF |
|
||||
PROC_CMD_READ);
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
|
||||
reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
|
||||
phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* bus->mdio_lock should be locked when using this function */
|
||||
static int vsc8584_get_fw_crc(struct phy_device *phydev, u16 start, u16 size,
|
||||
u16 *crc)
|
||||
{
|
||||
int ret;
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_2, start);
|
||||
phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_3, size);
|
||||
|
||||
/* Start Micro command */
|
||||
ret = vsc8584_cmd(phydev, PROC_CMD_CRC16);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
|
||||
|
||||
*crc = phy_base_read(phydev, MSCC_PHY_VERIPHY_CNTL_2);
|
||||
|
||||
out:
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* bus->mdio_lock should be locked when using this function */
|
||||
static int vsc8584_patch_fw(struct phy_device *phydev,
|
||||
const struct firmware *fw)
|
||||
{
|
||||
int i, ret;
|
||||
|
||||
ret = vsc8584_micro_assert_reset(phydev);
|
||||
if (ret) {
|
||||
dev_err(&phydev->mdio.dev,
|
||||
"%s: failed to assert reset of micro\n", __func__);
|
||||
return ret;
|
||||
}
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
|
||||
MSCC_PHY_PAGE_EXTENDED_GPIO);
|
||||
|
||||
/* Hold 8051 Micro in SW Reset, Enable auto incr address and patch clock
|
||||
* Disable the 8051 Micro clock
|
||||
*/
|
||||
phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, RUN_FROM_INT_ROM |
|
||||
AUTOINC_ADDR | PATCH_RAM_CLK | MICRO_CLK_EN |
|
||||
MICRO_CLK_DIVIDE(2));
|
||||
phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM | INT_MEM_WRITE_EN |
|
||||
INT_MEM_DATA(2));
|
||||
phy_base_write(phydev, MSCC_INT_MEM_ADDR, 0x0000);
|
||||
|
||||
for (i = 0; i < fw->size; i++)
|
||||
phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM |
|
||||
INT_MEM_WRITE_EN | fw->data[i]);
|
||||
|
||||
/* Clear internal memory access */
|
||||
phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* bus->mdio_lock should be locked when using this function */
|
||||
static int vsc8584_config_pre_init(struct phy_device *phydev)
|
||||
{
|
||||
const struct reg_val pre_init1[] = {
|
||||
{0x07fa, 0x0050100f},
|
||||
{0x1688, 0x00049f81},
|
||||
{0x0f90, 0x00688980},
|
||||
{0x03a4, 0x0000d8f0},
|
||||
{0x0fc0, 0x00000400},
|
||||
{0x0f82, 0x0012b002},
|
||||
{0x1686, 0x00000004},
|
||||
{0x168c, 0x00d2c46f},
|
||||
{0x17a2, 0x00000620},
|
||||
{0x16a0, 0x00eeffdd},
|
||||
{0x16a6, 0x00071448},
|
||||
{0x16a4, 0x0013132f},
|
||||
{0x16a8, 0x00000000},
|
||||
{0x0ffc, 0x00c0a028},
|
||||
{0x0fe8, 0x0091b06c},
|
||||
{0x0fea, 0x00041600},
|
||||
{0x0f80, 0x00fffaff},
|
||||
{0x0fec, 0x00901809},
|
||||
{0x0ffe, 0x00b01007},
|
||||
{0x16b0, 0x00eeff00},
|
||||
{0x16b2, 0x00007000},
|
||||
{0x16b4, 0x00000814},
|
||||
};
|
||||
const struct reg_val pre_init2[] = {
|
||||
{0x0486, 0x0008a518},
|
||||
{0x0488, 0x006dc696},
|
||||
{0x048a, 0x00000912},
|
||||
};
|
||||
const struct firmware *fw;
|
||||
struct device *dev = &phydev->mdio.dev;
|
||||
unsigned int i;
|
||||
u16 crc, reg;
|
||||
int ret;
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
|
||||
|
||||
/* all writes below are broadcasted to all PHYs in the same package */
|
||||
reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
|
||||
reg |= SMI_BROADCAST_WR_EN;
|
||||
phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
|
||||
|
||||
phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_PHY_BYPASS_CONTROL);
|
||||
reg |= PARALLEL_DET_IGNORE_ADVERTISED;
|
||||
phy_base_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg);
|
||||
|
||||
/* The below register writes are tweaking analog and electrical
|
||||
* configuration that were determined through characterization by PHY
|
||||
* engineers. These don't mean anything more than "these are the best
|
||||
* values".
|
||||
*/
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_3);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_SERDES_TX_CRC_ERR_CNT, 0x2000);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1f20);
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
|
||||
reg |= 0x8000;
|
||||
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x2fa4));
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_PHY_TR_MSB);
|
||||
reg &= ~0x007f;
|
||||
reg |= 0x0019;
|
||||
phy_base_write(phydev, MSCC_PHY_TR_MSB, reg);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x0fa4));
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
|
||||
vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);
|
||||
|
||||
phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
|
||||
vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
|
||||
|
||||
reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
|
||||
reg &= ~0x8000;
|
||||
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
|
||||
|
||||
/* end of write broadcasting */
|
||||
reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
|
||||
reg &= ~SMI_BROADCAST_WR_EN;
|
||||
phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
|
||||
|
||||
ret = request_firmware(&fw, MSCC_VSC8584_REVB_INT8051_FW, dev);
|
||||
if (ret) {
|
||||
dev_err(dev, "failed to load firmware %s, ret: %d\n",
|
||||
MSCC_VSC8584_REVB_INT8051_FW, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Add one byte to size for the one added by the patch_fw function */
|
||||
ret = vsc8584_get_fw_crc(phydev,
|
||||
MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
|
||||
fw->size + 1, &crc);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC) {
|
||||
dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
|
||||
if (vsc8584_patch_fw(phydev, fw))
|
||||
dev_warn(dev,
|
||||
"failed to patch FW, expect non-optimal device\n");
|
||||
}
|
||||
|
||||
vsc8584_micro_deassert_reset(phydev, false);
|
||||
|
||||
/* Add one byte to size for the one added by the patch_fw function */
|
||||
ret = vsc8584_get_fw_crc(phydev,
|
||||
MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
|
||||
fw->size + 1, &crc);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC)
|
||||
dev_warn(dev,
|
||||
"FW CRC after patching is not the expected one, expect non-optimal device\n");
|
||||
|
||||
ret = vsc8584_micro_assert_reset(phydev);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
vsc8584_micro_deassert_reset(phydev, true);
|
||||
|
||||
out:
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
|
||||
|
||||
release_firmware(fw);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Check if one PHY has already done the init of the parts common to all PHYs
|
||||
* in the Quad PHY package.
|
||||
*/
|
||||
static bool vsc8584_is_pkg_init(struct phy_device *phydev, bool reversed)
|
||||
{
|
||||
struct mdio_device **map = phydev->mdio.bus->mdio_map;
|
||||
struct vsc8531_private *vsc8531;
|
||||
struct phy_device *phy;
|
||||
int i, addr;
|
||||
|
||||
/* VSC8584 is a Quad PHY */
|
||||
for (i = 0; i < 4; i++) {
|
||||
vsc8531 = phydev->priv;
|
||||
|
||||
if (reversed)
|
||||
addr = vsc8531->base_addr - i;
|
||||
else
|
||||
addr = vsc8531->base_addr + i;
|
||||
|
||||
phy = container_of(map[addr], struct phy_device, mdio);
|
||||
|
||||
if ((phy->phy_id & phydev->drv->phy_id_mask) !=
|
||||
(phydev->drv->phy_id & phydev->drv->phy_id_mask))
|
||||
continue;
|
||||
|
||||
vsc8531 = phy->priv;
|
||||
|
||||
if (vsc8531 && vsc8531->pkg_init)
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static int vsc8584_config_init(struct phy_device *phydev)
|
||||
{
|
||||
struct vsc8531_private *vsc8531 = phydev->priv;
|
||||
u16 addr, val;
|
||||
int ret, i;
|
||||
|
||||
phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
|
||||
|
||||
mutex_lock(&phydev->mdio.bus->mdio_lock);
|
||||
|
||||
__mdiobus_write(phydev->mdio.bus, phydev->mdio.addr,
|
||||
MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
|
||||
addr = __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
|
||||
MSCC_PHY_EXT_PHY_CNTL_4);
|
||||
addr >>= PHY_CNTL_4_ADDR_POS;
|
||||
|
||||
val = __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
|
||||
MSCC_PHY_ACTIPHY_CNTL);
|
||||
if (val & PHY_ADDR_REVERSED)
|
||||
vsc8531->base_addr = phydev->mdio.addr + addr;
|
||||
else
|
||||
vsc8531->base_addr = phydev->mdio.addr - addr;
|
||||
|
||||
/* Some parts of the init sequence are identical for every PHY in the
|
||||
* package. Some parts are modifying the GPIO register bank which is a
|
||||
* set of registers that are affecting all PHYs, a few resetting the
|
||||
* microprocessor common to all PHYs. The CRC check responsible of the
|
||||
* checking the firmware within the 8051 microprocessor can only be
|
||||
* accessed via the PHY whose internal address in the package is 0.
|
||||
* All PHYs' interrupts mask register has to be zeroed before enabling
|
||||
* any PHY's interrupt in this register.
|
||||
* For all these reasons, we need to do the init sequence once and only
|
||||
* once whatever is the first PHY in the package that is initialized and
|
||||
* do the correct init sequence for all PHYs that are package-critical
|
||||
* in this pre-init function.
|
||||
*/
|
||||
if (!vsc8584_is_pkg_init(phydev, val & PHY_ADDR_REVERSED ? 1 : 0)) {
|
||||
ret = vsc8584_config_pre_init(phydev);
|
||||
if (ret)
|
||||
goto err;
|
||||
}
|
||||
|
||||
vsc8531->pkg_init = true;
|
||||
|
||||
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
|
||||
MSCC_PHY_PAGE_EXTENDED_GPIO);
|
||||
|
||||
val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
|
||||
val &= ~MAC_CFG_MASK;
|
||||
if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
|
||||
val |= MAC_CFG_QSGMII;
|
||||
else
|
||||
val |= MAC_CFG_SGMII;
|
||||
|
||||
ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
val = PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT |
|
||||
PROC_CMD_READ_MOD_WRITE_PORT;
|
||||
if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
|
||||
val |= PROC_CMD_QSGMII_MAC;
|
||||
else
|
||||
val |= PROC_CMD_SGMII_MAC;
|
||||
|
||||
ret = vsc8584_cmd(phydev, val);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
usleep_range(10000, 20000);
|
||||
|
||||
/* Disable SerDes for 100Base-FX */
|
||||
ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
|
||||
PROC_CMD_FIBER_PORT(addr) | PROC_CMD_FIBER_DISABLE |
|
||||
PROC_CMD_READ_MOD_WRITE_PORT |
|
||||
PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
/* Disable SerDes for 1000Base-X */
|
||||
ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
|
||||
PROC_CMD_FIBER_PORT(addr) | PROC_CMD_FIBER_DISABLE |
|
||||
PROC_CMD_READ_MOD_WRITE_PORT |
|
||||
PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
mutex_unlock(&phydev->mdio.bus->mdio_lock);
|
||||
|
||||
phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
|
||||
|
||||
val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
|
||||
val &= ~(MEDIA_OP_MODE_MASK | VSC8584_MAC_IF_SELECTION_MASK);
|
||||
val |= MEDIA_OP_MODE_COPPER | (VSC8584_MAC_IF_SELECTION_SGMII <<
|
||||
VSC8584_MAC_IF_SELECTION_POS);
|
||||
ret = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, val);
|
||||
|
||||
ret = genphy_soft_reset(phydev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
for (i = 0; i < vsc8531->nleds; i++) {
|
||||
ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return genphy_config_init(phydev);
|
||||
|
||||
err:
|
||||
mutex_unlock(&phydev->mdio.bus->mdio_lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int vsc85xx_config_init(struct phy_device *phydev)
|
||||
{
|
||||
int rc, i;
|
||||
@ -736,6 +1417,16 @@ static int vsc85xx_config_init(struct phy_device *phydev)
|
||||
return genphy_config_init(phydev);
|
||||
}
|
||||
|
||||
static int vsc8584_did_interrupt(struct phy_device *phydev)
|
||||
{
|
||||
int rc = 0;
|
||||
|
||||
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
||||
rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
|
||||
|
||||
return (rc < 0) ? 0 : rc & MII_VSC85XX_INT_MASK_MASK;
|
||||
}
|
||||
|
||||
static int vsc85xx_ack_interrupt(struct phy_device *phydev)
|
||||
{
|
||||
int rc = 0;
|
||||
@ -785,6 +1476,36 @@ static int vsc85xx_read_status(struct phy_device *phydev)
|
||||
return genphy_read_status(phydev);
|
||||
}
|
||||
|
||||
static int vsc8584_probe(struct phy_device *phydev)
|
||||
{
|
||||
struct vsc8531_private *vsc8531;
|
||||
u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY,
|
||||
VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY,
|
||||
VSC8531_DUPLEX_COLLISION};
|
||||
|
||||
if ((phydev->phy_id & MSCC_DEV_REV_MASK) != VSC8584_REVB) {
|
||||
dev_err(&phydev->mdio.dev, "Only VSC8584 revB is supported.\n");
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
|
||||
vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
|
||||
if (!vsc8531)
|
||||
return -ENOMEM;
|
||||
|
||||
phydev->priv = vsc8531;
|
||||
|
||||
vsc8531->nleds = 4;
|
||||
vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES;
|
||||
vsc8531->hw_stats = vsc8584_hw_stats;
|
||||
vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats);
|
||||
vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
|
||||
sizeof(u64), GFP_KERNEL);
|
||||
if (!vsc8531->stats)
|
||||
return -ENOMEM;
|
||||
|
||||
return vsc85xx_dt_led_modes_get(phydev, default_mode);
|
||||
}
|
||||
|
||||
static int vsc85xx_probe(struct phy_device *phydev)
|
||||
{
|
||||
struct vsc8531_private *vsc8531;
|
||||
@ -920,6 +1641,31 @@ static struct phy_driver vsc85xx_driver[] = {
|
||||
.get_sset_count = &vsc85xx_get_sset_count,
|
||||
.get_strings = &vsc85xx_get_strings,
|
||||
.get_stats = &vsc85xx_get_stats,
|
||||
},
|
||||
{
|
||||
.phy_id = PHY_ID_VSC8584,
|
||||
.name = "Microsemi GE VSC8584 SyncE",
|
||||
.phy_id_mask = 0xfffffff0,
|
||||
.features = PHY_GBIT_FEATURES,
|
||||
.flags = PHY_HAS_INTERRUPT,
|
||||
.soft_reset = &genphy_soft_reset,
|
||||
.config_init = &vsc8584_config_init,
|
||||
.config_aneg = &vsc85xx_config_aneg,
|
||||
.aneg_done = &genphy_aneg_done,
|
||||
.read_status = &vsc85xx_read_status,
|
||||
.ack_interrupt = &vsc85xx_ack_interrupt,
|
||||
.config_intr = &vsc85xx_config_intr,
|
||||
.did_interrupt = &vsc8584_did_interrupt,
|
||||
.suspend = &genphy_suspend,
|
||||
.resume = &genphy_resume,
|
||||
.probe = &vsc8584_probe,
|
||||
.get_tunable = &vsc85xx_get_tunable,
|
||||
.set_tunable = &vsc85xx_set_tunable,
|
||||
.read_page = &vsc85xx_phy_read_page,
|
||||
.write_page = &vsc85xx_phy_write_page,
|
||||
.get_sset_count = &vsc85xx_get_sset_count,
|
||||
.get_strings = &vsc85xx_get_strings,
|
||||
.get_stats = &vsc85xx_get_stats,
|
||||
}
|
||||
|
||||
};
|
||||
@ -931,6 +1677,7 @@ static struct mdio_device_id __maybe_unused vsc85xx_tbl[] = {
|
||||
{ PHY_ID_VSC8531, 0xfffffff0, },
|
||||
{ PHY_ID_VSC8540, 0xfffffff0, },
|
||||
{ PHY_ID_VSC8541, 0xfffffff0, },
|
||||
{ PHY_ID_VSC8584, 0xfffffff0, },
|
||||
{ }
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user