// SPDX-License-Identifier: (GPL-2.0 OR MIT) /* * Driver for Microsemi VSC85xx PHYs * * Author: Nagaraju Lakkaraju * License: Dual MIT/GPL * Copyright (c) 2016 Microsemi Corporation */ #include #include #include #include #include #include #include #include #include #include enum rgmii_rx_clock_delay { RGMII_RX_CLK_DELAY_0_2_NS = 0, RGMII_RX_CLK_DELAY_0_8_NS = 1, RGMII_RX_CLK_DELAY_1_1_NS = 2, RGMII_RX_CLK_DELAY_1_7_NS = 3, RGMII_RX_CLK_DELAY_2_0_NS = 4, RGMII_RX_CLK_DELAY_2_3_NS = 5, RGMII_RX_CLK_DELAY_2_6_NS = 6, RGMII_RX_CLK_DELAY_3_4_NS = 7 }; /* Microsemi VSC85xx PHY registers */ /* IEEE 802. Std Registers */ #define MSCC_PHY_BYPASS_CONTROL 18 #define DISABLE_HP_AUTO_MDIX_MASK 0x0080 #define DISABLE_PAIR_SWAP_CORR_MASK 0x0020 #define DISABLE_POLARITY_CORR_MASK 0x0010 #define PARALLEL_DET_IGNORE_ADVERTISED 0x0008 #define MSCC_PHY_EXT_CNTL_STATUS 22 #define SMI_BROADCAST_WR_EN 0x0001 #define MSCC_PHY_ERR_RX_CNT 19 #define MSCC_PHY_ERR_FALSE_CARRIER_CNT 20 #define MSCC_PHY_ERR_LINK_DISCONNECT_CNT 21 #define ERR_CNT_MASK GENMASK(7, 0) #define MSCC_PHY_EXT_PHY_CNTL_1 23 #define MAC_IF_SELECTION_MASK 0x1800 #define MAC_IF_SELECTION_GMII 0 #define MAC_IF_SELECTION_RMII 1 #define MAC_IF_SELECTION_RGMII 2 #define MAC_IF_SELECTION_POS 11 #define VSC8584_MAC_IF_SELECTION_MASK 0x1000 #define VSC8584_MAC_IF_SELECTION_SGMII 0 #define VSC8584_MAC_IF_SELECTION_1000BASEX 1 #define VSC8584_MAC_IF_SELECTION_POS 12 #define FAR_END_LOOPBACK_MODE_MASK 0x0008 #define MEDIA_OP_MODE_MASK 0x0700 #define MEDIA_OP_MODE_COPPER 0 #define MEDIA_OP_MODE_SERDES 1 #define MEDIA_OP_MODE_1000BASEX 2 #define MEDIA_OP_MODE_100BASEFX 3 #define MEDIA_OP_MODE_AMS_COPPER_SERDES 5 #define MEDIA_OP_MODE_AMS_COPPER_1000BASEX 6 #define MEDIA_OP_MODE_AMS_COPPER_100BASEFX 7 #define MEDIA_OP_MODE_POS 8 #define MSCC_PHY_EXT_PHY_CNTL_2 24 #define MII_VSC85XX_INT_MASK 25 #define MII_VSC85XX_INT_MASK_MASK 0xa000 #define MII_VSC85XX_INT_MASK_WOL 0x0040 #define MII_VSC85XX_INT_STATUS 26 #define MSCC_PHY_WOL_MAC_CONTROL 27 #define EDGE_RATE_CNTL_POS 5 #define EDGE_RATE_CNTL_MASK 0x00E0 #define MSCC_PHY_DEV_AUX_CNTL 28 #define HP_AUTO_MDIX_X_OVER_IND_MASK 0x2000 #define MSCC_PHY_LED_MODE_SEL 29 #define LED_MODE_SEL_POS(x) ((x) * 4) #define LED_MODE_SEL_MASK(x) (GENMASK(3, 0) << LED_MODE_SEL_POS(x)) #define LED_MODE_SEL(x, mode) (((mode) << LED_MODE_SEL_POS(x)) & LED_MODE_SEL_MASK(x)) #define MSCC_EXT_PAGE_CSR_CNTL_17 17 #define MSCC_EXT_PAGE_CSR_CNTL_18 18 #define MSCC_EXT_PAGE_CSR_CNTL_19 19 #define MSCC_PHY_CSR_CNTL_19_REG_ADDR(x) (x) #define MSCC_PHY_CSR_CNTL_19_TARGET(x) ((x) << 12) #define MSCC_PHY_CSR_CNTL_19_READ BIT(14) #define MSCC_PHY_CSR_CNTL_19_CMD BIT(15) #define MSCC_EXT_PAGE_CSR_CNTL_20 20 #define MSCC_PHY_CSR_CNTL_20_TARGET(x) (x) #define PHY_MCB_TARGET 0x07 #define PHY_MCB_S6G_WRITE BIT(31) #define PHY_MCB_S6G_READ BIT(30) #define PHY_S6G_PLL5G_CFG0 0x06 #define PHY_S6G_LCPLL_CFG 0x11 #define PHY_S6G_PLL_CFG 0x2b #define PHY_S6G_COMMON_CFG 0x2c #define PHY_S6G_GPC_CFG 0x2e #define PHY_S6G_MISC_CFG 0x3b #define PHY_MCB_S6G_CFG 0x3f #define PHY_S6G_DFT_CFG2 0x3e #define PHY_S6G_PLL_STATUS 0x31 #define PHY_S6G_IB_STATUS0 0x2f #define PHY_S6G_SYS_RST_POS 31 #define PHY_S6G_ENA_LANE_POS 18 #define PHY_S6G_ENA_LOOP_POS 8 #define PHY_S6G_QRATE_POS 6 #define PHY_S6G_IF_MODE_POS 4 #define PHY_S6G_PLL_ENA_OFFS_POS 21 #define PHY_S6G_PLL_FSM_CTRL_DATA_POS 8 #define PHY_S6G_PLL_FSM_ENA_POS 7 #define MSCC_EXT_PAGE_ACCESS 31 #define MSCC_PHY_PAGE_STANDARD 0x0000 /* Standard registers */ #define MSCC_PHY_PAGE_EXTENDED 0x0001 /* Extended registers */ #define MSCC_PHY_PAGE_EXTENDED_2 0x0002 /* Extended reg - page 2 */ #define MSCC_PHY_PAGE_EXTENDED_3 0x0003 /* Extended reg - page 3 */ #define MSCC_PHY_PAGE_EXTENDED_4 0x0004 /* Extended reg - page 4 */ #define MSCC_PHY_PAGE_CSR_CNTL MSCC_PHY_PAGE_EXTENDED_4 /* Extended reg - GPIO; this is a bank of registers that are shared for all PHYs * in the same package. */ #define MSCC_PHY_PAGE_EXTENDED_GPIO 0x0010 /* Extended reg - GPIO */ #define MSCC_PHY_PAGE_TEST 0x2a30 /* Test reg */ #define MSCC_PHY_PAGE_TR 0x52b5 /* Token ring registers */ /* Extended Page 1 Registers */ #define MSCC_PHY_CU_MEDIA_CRC_VALID_CNT 18 #define VALID_CRC_CNT_CRC_MASK GENMASK(13, 0) #define MSCC_PHY_EXT_MODE_CNTL 19 #define FORCE_MDI_CROSSOVER_MASK 0x000C #define FORCE_MDI_CROSSOVER_MDIX 0x000C #define FORCE_MDI_CROSSOVER_MDI 0x0008 #define MSCC_PHY_ACTIPHY_CNTL 20 #define PHY_ADDR_REVERSED 0x0200 #define DOWNSHIFT_CNTL_MASK 0x001C #define DOWNSHIFT_EN 0x0010 #define DOWNSHIFT_CNTL_POS 2 #define MSCC_PHY_EXT_PHY_CNTL_4 23 #define PHY_CNTL_4_ADDR_POS 11 #define MSCC_PHY_VERIPHY_CNTL_2 25 #define MSCC_PHY_VERIPHY_CNTL_3 26 /* Extended Page 2 Registers */ #define MSCC_PHY_CU_PMD_TX_CNTL 16 #define MSCC_PHY_RGMII_CNTL 20 #define RGMII_RX_CLK_DELAY_MASK 0x0070 #define RGMII_RX_CLK_DELAY_POS 4 #define MSCC_PHY_WOL_LOWER_MAC_ADDR 21 #define MSCC_PHY_WOL_MID_MAC_ADDR 22 #define MSCC_PHY_WOL_UPPER_MAC_ADDR 23 #define MSCC_PHY_WOL_LOWER_PASSWD 24 #define MSCC_PHY_WOL_MID_PASSWD 25 #define MSCC_PHY_WOL_UPPER_PASSWD 26 #define MSCC_PHY_WOL_MAC_CONTROL 27 #define SECURE_ON_ENABLE 0x8000 #define SECURE_ON_PASSWD_LEN_4 0x4000 /* Extended Page 3 Registers */ #define MSCC_PHY_SERDES_TX_VALID_CNT 21 #define MSCC_PHY_SERDES_TX_CRC_ERR_CNT 22 #define MSCC_PHY_SERDES_RX_VALID_CNT 28 #define MSCC_PHY_SERDES_RX_CRC_ERR_CNT 29 /* Extended page GPIO Registers */ #define MSCC_DW8051_CNTL_STATUS 0 #define MICRO_NSOFT_RESET 0x8000 #define RUN_FROM_INT_ROM 0x4000 #define AUTOINC_ADDR 0x2000 #define PATCH_RAM_CLK 0x1000 #define MICRO_PATCH_EN 0x0080 #define DW8051_CLK_EN 0x0010 #define MICRO_CLK_EN 0x0008 #define MICRO_CLK_DIVIDE(x) ((x) >> 1) #define MSCC_DW8051_VLD_MASK 0xf1ff /* x Address in range 1-4 */ #define MSCC_TRAP_ROM_ADDR(x) ((x) * 2 + 1) #define MSCC_PATCH_RAM_ADDR(x) (((x) + 1) * 2) #define MSCC_INT_MEM_ADDR 11 #define MSCC_INT_MEM_CNTL 12 #define READ_SFR 0x6000 #define READ_PRAM 0x4000 #define READ_ROM 0x2000 #define READ_RAM 0x0000 #define INT_MEM_WRITE_EN 0x1000 #define EN_PATCH_RAM_TRAP_ADDR(x) (0x0100 << ((x) - 1)) #define INT_MEM_DATA_M 0x00ff #define INT_MEM_DATA(x) (INT_MEM_DATA_M & (x)) #define MSCC_PHY_PROC_CMD 18 #define PROC_CMD_NCOMPLETED 0x8000 #define PROC_CMD_FAILED 0x4000 #define PROC_CMD_SGMII_PORT(x) ((x) << 8) #define PROC_CMD_FIBER_PORT(x) (0x0100 << (x) % 4) #define PROC_CMD_QSGMII_PORT 0x0c00 #define PROC_CMD_RST_CONF_PORT 0x0080 #define PROC_CMD_RECONF_PORT 0x0000 #define PROC_CMD_READ_MOD_WRITE_PORT 0x0040 #define PROC_CMD_WRITE 0x0040 #define PROC_CMD_READ 0x0000 #define PROC_CMD_FIBER_DISABLE 0x0020 #define PROC_CMD_FIBER_100BASE_FX 0x0010 #define PROC_CMD_FIBER_1000BASE_X 0x0000 #define PROC_CMD_SGMII_MAC 0x0030 #define PROC_CMD_QSGMII_MAC 0x0020 #define PROC_CMD_NO_MAC_CONF 0x0000 #define PROC_CMD_1588_DEFAULT_INIT 0x0010 #define PROC_CMD_NOP 0x000f #define PROC_CMD_PHY_INIT 0x000a #define PROC_CMD_CRC16 0x0008 #define PROC_CMD_FIBER_MEDIA_CONF 0x0001 #define PROC_CMD_MCB_ACCESS_MAC_CONF 0x0000 #define PROC_CMD_NCOMPLETED_TIMEOUT_MS 500 #define MSCC_PHY_MAC_CFG_FASTLINK 19 #define MAC_CFG_MASK 0xc000 #define MAC_CFG_SGMII 0x0000 #define MAC_CFG_QSGMII 0x4000 /* Test page Registers */ #define MSCC_PHY_TEST_PAGE_5 5 #define MSCC_PHY_TEST_PAGE_8 8 #define MSCC_PHY_TEST_PAGE_9 9 #define MSCC_PHY_TEST_PAGE_20 20 #define MSCC_PHY_TEST_PAGE_24 24 /* Token ring page Registers */ #define MSCC_PHY_TR_CNTL 16 #define TR_WRITE 0x8000 #define TR_ADDR(x) (0x7fff & (x)) #define MSCC_PHY_TR_LSB 17 #define MSCC_PHY_TR_MSB 18 /* Microsemi PHY ID's */ #define PHY_ID_VSC8514 0x00070670 #define PHY_ID_VSC8530 0x00070560 #define PHY_ID_VSC8531 0x00070570 #define PHY_ID_VSC8540 0x00070760 #define PHY_ID_VSC8541 0x00070770 #define PHY_ID_VSC8574 0x000704a0 #define PHY_ID_VSC8584 0x000707c0 #define MSCC_VDDMAC_1500 1500 #define MSCC_VDDMAC_1800 1800 #define MSCC_VDDMAC_2500 2500 #define MSCC_VDDMAC_3300 3300 #define DOWNSHIFT_COUNT_MAX 5 #define MAX_LEDS 4 #define VSC8584_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \ BIT(VSC8531_LINK_1000_ACTIVITY) | \ BIT(VSC8531_LINK_100_ACTIVITY) | \ BIT(VSC8531_LINK_10_ACTIVITY) | \ BIT(VSC8531_LINK_100_1000_ACTIVITY) | \ BIT(VSC8531_LINK_10_1000_ACTIVITY) | \ BIT(VSC8531_LINK_10_100_ACTIVITY) | \ BIT(VSC8584_LINK_100FX_1000X_ACTIVITY) | \ BIT(VSC8531_DUPLEX_COLLISION) | \ BIT(VSC8531_COLLISION) | \ BIT(VSC8531_ACTIVITY) | \ BIT(VSC8584_100FX_1000X_ACTIVITY) | \ BIT(VSC8531_AUTONEG_FAULT) | \ BIT(VSC8531_SERIAL_MODE) | \ BIT(VSC8531_FORCE_LED_OFF) | \ BIT(VSC8531_FORCE_LED_ON)) #define VSC85XX_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \ BIT(VSC8531_LINK_1000_ACTIVITY) | \ BIT(VSC8531_LINK_100_ACTIVITY) | \ BIT(VSC8531_LINK_10_ACTIVITY) | \ BIT(VSC8531_LINK_100_1000_ACTIVITY) | \ BIT(VSC8531_LINK_10_1000_ACTIVITY) | \ BIT(VSC8531_LINK_10_100_ACTIVITY) | \ BIT(VSC8531_DUPLEX_COLLISION) | \ BIT(VSC8531_COLLISION) | \ BIT(VSC8531_ACTIVITY) | \ BIT(VSC8531_AUTONEG_FAULT) | \ BIT(VSC8531_SERIAL_MODE) | \ BIT(VSC8531_FORCE_LED_OFF) | \ BIT(VSC8531_FORCE_LED_ON)) #define MSCC_VSC8584_REVB_INT8051_FW "mscc_vsc8584_revb_int8051_fb48.bin" #define MSCC_VSC8584_REVB_INT8051_FW_START_ADDR 0xe800 #define MSCC_VSC8584_REVB_INT8051_FW_CRC 0xfb48 #define MSCC_VSC8574_REVB_INT8051_FW "mscc_vsc8574_revb_int8051_29e8.bin" #define MSCC_VSC8574_REVB_INT8051_FW_START_ADDR 0x4000 #define MSCC_VSC8574_REVB_INT8051_FW_CRC 0x29e8 #define VSC8584_REVB 0x0001 #define MSCC_DEV_REV_MASK GENMASK(3, 0) struct reg_val { u16 reg; u32 val; }; struct vsc85xx_hw_stat { const char *string; u8 reg; u16 page; u16 mask; }; static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = { { .string = "phy_receive_errors", .reg = MSCC_PHY_ERR_RX_CNT, .page = MSCC_PHY_PAGE_STANDARD, .mask = ERR_CNT_MASK, }, { .string = "phy_false_carrier", .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT, .page = MSCC_PHY_PAGE_STANDARD, .mask = ERR_CNT_MASK, }, { .string = "phy_cu_media_link_disconnect", .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT, .page = MSCC_PHY_PAGE_STANDARD, .mask = ERR_CNT_MASK, }, { .string = "phy_cu_media_crc_good_count", .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT, .page = MSCC_PHY_PAGE_EXTENDED, .mask = VALID_CRC_CNT_CRC_MASK, }, { .string = "phy_cu_media_crc_error_count", .reg = MSCC_PHY_EXT_PHY_CNTL_4, .page = MSCC_PHY_PAGE_EXTENDED, .mask = ERR_CNT_MASK, }, }; static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = { { .string = "phy_receive_errors", .reg = MSCC_PHY_ERR_RX_CNT, .page = MSCC_PHY_PAGE_STANDARD, .mask = ERR_CNT_MASK, }, { .string = "phy_false_carrier", .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT, .page = MSCC_PHY_PAGE_STANDARD, .mask = ERR_CNT_MASK, }, { .string = "phy_cu_media_link_disconnect", .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT, .page = MSCC_PHY_PAGE_STANDARD, .mask = ERR_CNT_MASK, }, { .string = "phy_cu_media_crc_good_count", .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT, .page = MSCC_PHY_PAGE_EXTENDED, .mask = VALID_CRC_CNT_CRC_MASK, }, { .string = "phy_cu_media_crc_error_count", .reg = MSCC_PHY_EXT_PHY_CNTL_4, .page = MSCC_PHY_PAGE_EXTENDED, .mask = ERR_CNT_MASK, }, { .string = "phy_serdes_tx_good_pkt_count", .reg = MSCC_PHY_SERDES_TX_VALID_CNT, .page = MSCC_PHY_PAGE_EXTENDED_3, .mask = VALID_CRC_CNT_CRC_MASK, }, { .string = "phy_serdes_tx_bad_crc_count", .reg = MSCC_PHY_SERDES_TX_CRC_ERR_CNT, .page = MSCC_PHY_PAGE_EXTENDED_3, .mask = ERR_CNT_MASK, }, { .string = "phy_serdes_rx_good_pkt_count", .reg = MSCC_PHY_SERDES_RX_VALID_CNT, .page = MSCC_PHY_PAGE_EXTENDED_3, .mask = VALID_CRC_CNT_CRC_MASK, }, { .string = "phy_serdes_rx_bad_crc_count", .reg = MSCC_PHY_SERDES_RX_CRC_ERR_CNT, .page = MSCC_PHY_PAGE_EXTENDED_3, .mask = ERR_CNT_MASK, }, }; struct vsc8531_private { int rate_magic; u16 supp_led_modes; u32 leds_mode[MAX_LEDS]; u8 nleds; const struct vsc85xx_hw_stat *hw_stats; u64 *stats; int nstats; bool pkg_init; /* For multiple port PHYs; the MDIO address of the base PHY in the * package. */ unsigned int base_addr; }; #ifdef CONFIG_OF_MDIO struct vsc8531_edge_rate_table { u32 vddmac; u32 slowdown[8]; }; static const struct vsc8531_edge_rate_table edge_table[] = { {MSCC_VDDMAC_3300, { 0, 2, 4, 7, 10, 17, 29, 53} }, {MSCC_VDDMAC_2500, { 0, 3, 6, 10, 14, 23, 37, 63} }, {MSCC_VDDMAC_1800, { 0, 5, 9, 16, 23, 35, 52, 76} }, {MSCC_VDDMAC_1500, { 0, 6, 14, 21, 29, 42, 58, 77} }, }; #endif /* CONFIG_OF_MDIO */ static int vsc85xx_phy_read_page(struct phy_device *phydev) { return __phy_read(phydev, MSCC_EXT_PAGE_ACCESS); } static int vsc85xx_phy_write_page(struct phy_device *phydev, int page) { return __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, page); } static int vsc85xx_get_sset_count(struct phy_device *phydev) { struct vsc8531_private *priv = phydev->priv; if (!priv) return 0; return priv->nstats; } static void vsc85xx_get_strings(struct phy_device *phydev, u8 *data) { struct vsc8531_private *priv = phydev->priv; int i; if (!priv) return; for (i = 0; i < priv->nstats; i++) strlcpy(data + i * ETH_GSTRING_LEN, priv->hw_stats[i].string, ETH_GSTRING_LEN); } static u64 vsc85xx_get_stat(struct phy_device *phydev, int i) { struct vsc8531_private *priv = phydev->priv; int val; val = phy_read_paged(phydev, priv->hw_stats[i].page, priv->hw_stats[i].reg); if (val < 0) return U64_MAX; val = val & priv->hw_stats[i].mask; priv->stats[i] += val; return priv->stats[i]; } static void vsc85xx_get_stats(struct phy_device *phydev, struct ethtool_stats *stats, u64 *data) { struct vsc8531_private *priv = phydev->priv; int i; if (!priv) return; for (i = 0; i < priv->nstats; i++) data[i] = vsc85xx_get_stat(phydev, i); } static int vsc85xx_led_cntl_set(struct phy_device *phydev, u8 led_num, u8 mode) { int rc; u16 reg_val; mutex_lock(&phydev->lock); reg_val = phy_read(phydev, MSCC_PHY_LED_MODE_SEL); reg_val &= ~LED_MODE_SEL_MASK(led_num); reg_val |= LED_MODE_SEL(led_num, (u16)mode); rc = phy_write(phydev, MSCC_PHY_LED_MODE_SEL, reg_val); mutex_unlock(&phydev->lock); return rc; } static int vsc85xx_mdix_get(struct phy_device *phydev, u8 *mdix) { u16 reg_val; reg_val = phy_read(phydev, MSCC_PHY_DEV_AUX_CNTL); if (reg_val & HP_AUTO_MDIX_X_OVER_IND_MASK) *mdix = ETH_TP_MDI_X; else *mdix = ETH_TP_MDI; return 0; } static int vsc85xx_mdix_set(struct phy_device *phydev, u8 mdix) { int rc; u16 reg_val; reg_val = phy_read(phydev, MSCC_PHY_BYPASS_CONTROL); if (mdix == ETH_TP_MDI || mdix == ETH_TP_MDI_X) { reg_val |= (DISABLE_PAIR_SWAP_CORR_MASK | DISABLE_POLARITY_CORR_MASK | DISABLE_HP_AUTO_MDIX_MASK); } else { reg_val &= ~(DISABLE_PAIR_SWAP_CORR_MASK | DISABLE_POLARITY_CORR_MASK | DISABLE_HP_AUTO_MDIX_MASK); } rc = phy_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg_val); if (rc) return rc; reg_val = 0; if (mdix == ETH_TP_MDI) reg_val = FORCE_MDI_CROSSOVER_MDI; else if (mdix == ETH_TP_MDI_X) reg_val = FORCE_MDI_CROSSOVER_MDIX; rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED, MSCC_PHY_EXT_MODE_CNTL, FORCE_MDI_CROSSOVER_MASK, reg_val); if (rc < 0) return rc; return genphy_restart_aneg(phydev); } static int vsc85xx_downshift_get(struct phy_device *phydev, u8 *count) { int reg_val; reg_val = phy_read_paged(phydev, MSCC_PHY_PAGE_EXTENDED, MSCC_PHY_ACTIPHY_CNTL); if (reg_val < 0) return reg_val; reg_val &= DOWNSHIFT_CNTL_MASK; if (!(reg_val & DOWNSHIFT_EN)) *count = DOWNSHIFT_DEV_DISABLE; else *count = ((reg_val & ~DOWNSHIFT_EN) >> DOWNSHIFT_CNTL_POS) + 2; return 0; } static int vsc85xx_downshift_set(struct phy_device *phydev, u8 count) { if (count == DOWNSHIFT_DEV_DEFAULT_COUNT) { /* Default downshift count 3 (i.e. Bit3:2 = 0b01) */ count = ((1 << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN); } else if (count > DOWNSHIFT_COUNT_MAX || count == 1) { phydev_err(phydev, "Downshift count should be 2,3,4 or 5\n"); return -ERANGE; } else if (count) { /* Downshift count is either 2,3,4 or 5 */ count = (((count - 2) << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN); } return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED, MSCC_PHY_ACTIPHY_CNTL, DOWNSHIFT_CNTL_MASK, count); } static int vsc85xx_wol_set(struct phy_device *phydev, struct ethtool_wolinfo *wol) { int rc; u16 reg_val; u8 i; u16 pwd[3] = {0, 0, 0}; struct ethtool_wolinfo *wol_conf = wol; u8 *mac_addr = phydev->attached_dev->dev_addr; mutex_lock(&phydev->lock); rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2); if (rc < 0) { rc = phy_restore_page(phydev, rc, rc); goto out_unlock; } if (wol->wolopts & WAKE_MAGIC) { /* Store the device address for the magic packet */ for (i = 0; i < ARRAY_SIZE(pwd); i++) pwd[i] = mac_addr[5 - (i * 2 + 1)] << 8 | mac_addr[5 - i * 2]; __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, pwd[0]); __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, pwd[1]); __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, pwd[2]); } else { __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, 0); __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, 0); __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, 0); } if (wol_conf->wolopts & WAKE_MAGICSECURE) { for (i = 0; i < ARRAY_SIZE(pwd); i++) pwd[i] = wol_conf->sopass[5 - (i * 2 + 1)] << 8 | wol_conf->sopass[5 - i * 2]; __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, pwd[0]); __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, pwd[1]); __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, pwd[2]); } else { __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, 0); __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, 0); __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, 0); } reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL); if (wol_conf->wolopts & WAKE_MAGICSECURE) reg_val |= SECURE_ON_ENABLE; else reg_val &= ~SECURE_ON_ENABLE; __phy_write(phydev, MSCC_PHY_WOL_MAC_CONTROL, reg_val); rc = phy_restore_page(phydev, rc, rc > 0 ? 0 : rc); if (rc < 0) goto out_unlock; if (wol->wolopts & WAKE_MAGIC) { /* Enable the WOL interrupt */ reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK); reg_val |= MII_VSC85XX_INT_MASK_WOL; rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val); if (rc) goto out_unlock; } else { /* Disable the WOL interrupt */ reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK); reg_val &= (~MII_VSC85XX_INT_MASK_WOL); rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val); if (rc) goto out_unlock; } /* Clear WOL iterrupt status */ reg_val = phy_read(phydev, MII_VSC85XX_INT_STATUS); out_unlock: mutex_unlock(&phydev->lock); return rc; } static void vsc85xx_wol_get(struct phy_device *phydev, struct ethtool_wolinfo *wol) { int rc; u16 reg_val; u8 i; u16 pwd[3] = {0, 0, 0}; struct ethtool_wolinfo *wol_conf = wol; mutex_lock(&phydev->lock); rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2); if (rc < 0) goto out_unlock; reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL); if (reg_val & SECURE_ON_ENABLE) wol_conf->wolopts |= WAKE_MAGICSECURE; if (wol_conf->wolopts & WAKE_MAGICSECURE) { pwd[0] = __phy_read(phydev, MSCC_PHY_WOL_LOWER_PASSWD); pwd[1] = __phy_read(phydev, MSCC_PHY_WOL_MID_PASSWD); pwd[2] = __phy_read(phydev, MSCC_PHY_WOL_UPPER_PASSWD); for (i = 0; i < ARRAY_SIZE(pwd); i++) { wol_conf->sopass[5 - i * 2] = pwd[i] & 0x00ff; wol_conf->sopass[5 - (i * 2 + 1)] = (pwd[i] & 0xff00) >> 8; } } out_unlock: phy_restore_page(phydev, rc, rc > 0 ? 0 : rc); mutex_unlock(&phydev->lock); } #ifdef CONFIG_OF_MDIO static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev) { u32 vdd, sd; int i, j; struct device *dev = &phydev->mdio.dev; struct device_node *of_node = dev->of_node; u8 sd_array_size = ARRAY_SIZE(edge_table[0].slowdown); if (!of_node) return -ENODEV; if (of_property_read_u32(of_node, "vsc8531,vddmac", &vdd)) vdd = MSCC_VDDMAC_3300; if (of_property_read_u32(of_node, "vsc8531,edge-slowdown", &sd)) sd = 0; for (i = 0; i < ARRAY_SIZE(edge_table); i++) if (edge_table[i].vddmac == vdd) for (j = 0; j < sd_array_size; j++) if (edge_table[i].slowdown[j] == sd) return (sd_array_size - j - 1); return -EINVAL; } static int vsc85xx_dt_led_mode_get(struct phy_device *phydev, char *led, u32 default_mode) { struct vsc8531_private *priv = phydev->priv; struct device *dev = &phydev->mdio.dev; struct device_node *of_node = dev->of_node; u32 led_mode; int err; if (!of_node) return -ENODEV; led_mode = default_mode; err = of_property_read_u32(of_node, led, &led_mode); if (!err && !(BIT(led_mode) & priv->supp_led_modes)) { phydev_err(phydev, "DT %s invalid\n", led); return -EINVAL; } return led_mode; } #else static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev) { return 0; } static int vsc85xx_dt_led_mode_get(struct phy_device *phydev, char *led, u8 default_mode) { return default_mode; } #endif /* CONFIG_OF_MDIO */ static int vsc85xx_dt_led_modes_get(struct phy_device *phydev, u32 *default_mode) { struct vsc8531_private *priv = phydev->priv; char led_dt_prop[28]; int i, ret; for (i = 0; i < priv->nleds; i++) { ret = sprintf(led_dt_prop, "vsc8531,led-%d-mode", i); if (ret < 0) return ret; ret = vsc85xx_dt_led_mode_get(phydev, led_dt_prop, default_mode[i]); if (ret < 0) return ret; priv->leds_mode[i] = ret; } return 0; } static int vsc85xx_edge_rate_cntl_set(struct phy_device *phydev, u8 edge_rate) { int rc; mutex_lock(&phydev->lock); rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2, MSCC_PHY_WOL_MAC_CONTROL, EDGE_RATE_CNTL_MASK, edge_rate << EDGE_RATE_CNTL_POS); mutex_unlock(&phydev->lock); return rc; } static int vsc85xx_mac_if_set(struct phy_device *phydev, phy_interface_t interface) { int rc; u16 reg_val; mutex_lock(&phydev->lock); reg_val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1); reg_val &= ~(MAC_IF_SELECTION_MASK); switch (interface) { case PHY_INTERFACE_MODE_RGMII: reg_val |= (MAC_IF_SELECTION_RGMII << MAC_IF_SELECTION_POS); break; case PHY_INTERFACE_MODE_RMII: reg_val |= (MAC_IF_SELECTION_RMII << MAC_IF_SELECTION_POS); break; case PHY_INTERFACE_MODE_MII: case PHY_INTERFACE_MODE_GMII: reg_val |= (MAC_IF_SELECTION_GMII << MAC_IF_SELECTION_POS); break; default: rc = -EINVAL; goto out_unlock; } rc = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, reg_val); if (rc) goto out_unlock; rc = genphy_soft_reset(phydev); out_unlock: mutex_unlock(&phydev->lock); return rc; } static int vsc85xx_default_config(struct phy_device *phydev) { int rc; u16 reg_val; phydev->mdix_ctrl = ETH_TP_MDI_AUTO; mutex_lock(&phydev->lock); reg_val = RGMII_RX_CLK_DELAY_1_1_NS << RGMII_RX_CLK_DELAY_POS; rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2, MSCC_PHY_RGMII_CNTL, RGMII_RX_CLK_DELAY_MASK, reg_val); mutex_unlock(&phydev->lock); return rc; } static int vsc85xx_get_tunable(struct phy_device *phydev, struct ethtool_tunable *tuna, void *data) { switch (tuna->id) { case ETHTOOL_PHY_DOWNSHIFT: return vsc85xx_downshift_get(phydev, (u8 *)data); default: return -EINVAL; } } static int vsc85xx_set_tunable(struct phy_device *phydev, struct ethtool_tunable *tuna, const void *data) { switch (tuna->id) { case ETHTOOL_PHY_DOWNSHIFT: return vsc85xx_downshift_set(phydev, *(u8 *)data); default: return -EINVAL; } } /* mdiobus lock should be locked when using this function */ static void vsc85xx_tr_write(struct phy_device *phydev, u16 addr, u32 val) { __phy_write(phydev, MSCC_PHY_TR_MSB, val >> 16); __phy_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0)); __phy_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr)); } static int vsc8531_pre_init_seq_set(struct phy_device *phydev) { int rc; const struct reg_val init_seq[] = { {0x0f90, 0x00688980}, {0x0696, 0x00000003}, {0x07fa, 0x0050100f}, {0x1686, 0x00000004}, }; unsigned int i; int oldpage; rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_STANDARD, MSCC_PHY_EXT_CNTL_STATUS, SMI_BROADCAST_WR_EN, SMI_BROADCAST_WR_EN); if (rc < 0) return rc; rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST, MSCC_PHY_TEST_PAGE_24, 0, 0x0400); if (rc < 0) return rc; rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST, MSCC_PHY_TEST_PAGE_5, 0x0a00, 0x0e00); if (rc < 0) return rc; rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST, MSCC_PHY_TEST_PAGE_8, 0x8000, 0x8000); if (rc < 0) return rc; mutex_lock(&phydev->lock); oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR); if (oldpage < 0) goto out_unlock; for (i = 0; i < ARRAY_SIZE(init_seq); i++) vsc85xx_tr_write(phydev, init_seq[i].reg, init_seq[i].val); out_unlock: oldpage = phy_restore_page(phydev, oldpage, oldpage); mutex_unlock(&phydev->lock); return oldpage; } static int vsc85xx_eee_init_seq_set(struct phy_device *phydev) { const struct reg_val init_eee[] = { {0x0f82, 0x0012b00a}, {0x1686, 0x00000004}, {0x168c, 0x00d2c46f}, {0x17a2, 0x00000620}, {0x16a0, 0x00eeffdd}, {0x16a6, 0x00071448}, {0x16a4, 0x0013132f}, {0x16a8, 0x00000000}, {0x0ffc, 0x00c0a028}, {0x0fe8, 0x0091b06c}, {0x0fea, 0x00041600}, {0x0f80, 0x00000af4}, {0x0fec, 0x00901809}, {0x0fee, 0x0000a6a1}, {0x0ffe, 0x00b01007}, {0x16b0, 0x00eeff00}, {0x16b2, 0x00007000}, {0x16b4, 0x00000814}, }; unsigned int i; int oldpage; mutex_lock(&phydev->lock); oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR); if (oldpage < 0) goto out_unlock; for (i = 0; i < ARRAY_SIZE(init_eee); i++) vsc85xx_tr_write(phydev, init_eee[i].reg, init_eee[i].val); out_unlock: oldpage = phy_restore_page(phydev, oldpage, oldpage); mutex_unlock(&phydev->lock); return oldpage; } /* phydev->bus->mdio_lock should be locked when using this function */ static int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val) { struct vsc8531_private *priv = phydev->priv; if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) { dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n"); dump_stack(); } return __mdiobus_write(phydev->mdio.bus, priv->base_addr, regnum, val); } /* phydev->bus->mdio_lock should be locked when using this function */ static int phy_base_read(struct phy_device *phydev, u32 regnum) { struct vsc8531_private *priv = phydev->priv; if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) { dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n"); dump_stack(); } return __mdiobus_read(phydev->mdio.bus, priv->base_addr, regnum); } /* bus->mdio_lock should be locked when using this function */ static void vsc8584_csr_write(struct phy_device *phydev, u16 addr, u32 val) { phy_base_write(phydev, MSCC_PHY_TR_MSB, val >> 16); phy_base_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0)); phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr)); } /* bus->mdio_lock should be locked when using this function */ static int vsc8584_cmd(struct phy_device *phydev, u16 val) { unsigned long deadline; u16 reg_val; phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NCOMPLETED | val); deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); do { reg_val = phy_base_read(phydev, MSCC_PHY_PROC_CMD); } while (time_before(jiffies, deadline) && (reg_val & PROC_CMD_NCOMPLETED) && !(reg_val & PROC_CMD_FAILED)); phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); if (reg_val & PROC_CMD_FAILED) return -EIO; if (reg_val & PROC_CMD_NCOMPLETED) return -ETIMEDOUT; return 0; } /* bus->mdio_lock should be locked when using this function */ static int vsc8584_micro_deassert_reset(struct phy_device *phydev, bool patch_en) { u32 enable, release; phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); enable = RUN_FROM_INT_ROM | MICRO_CLK_EN | DW8051_CLK_EN; release = MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN | MICRO_CLK_EN; if (patch_en) { enable |= MICRO_PATCH_EN; release |= MICRO_PATCH_EN; /* Clear all patches */ phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM); } /* Enable 8051 Micro clock; CLEAR/SET patch present; disable PRAM clock * override and addr. auto-incr; operate at 125 MHz */ phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, enable); /* Release 8051 Micro SW reset */ phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, release); 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_micro_assert_reset(struct phy_device *phydev) { int ret; u16 reg; 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 bool vsc8574_is_serdes_init(struct phy_device *phydev) { u16 reg; bool ret; phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); reg = phy_base_read(phydev, MSCC_TRAP_ROM_ADDR(1)); if (reg != 0x3eb7) { ret = false; goto out; } reg = phy_base_read(phydev, MSCC_PATCH_RAM_ADDR(1)); if (reg != 0x4012) { ret = false; goto out; } reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); if (reg != EN_PATCH_RAM_TRAP_ADDR(1)) { ret = false; goto out; } reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS); if ((MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN | MICRO_CLK_EN) != (reg & MSCC_DW8051_VLD_MASK)) { ret = false; goto out; } ret = true; 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 vsc8574_config_pre_init(struct phy_device *phydev) { const struct reg_val pre_init1[] = { {0x0fae, 0x000401bd}, {0x0fac, 0x000f000f}, {0x17a0, 0x00a0f147}, {0x0fe4, 0x00052f54}, {0x1792, 0x0027303d}, {0x07fe, 0x00000704}, {0x0fe0, 0x00060150}, {0x0f82, 0x0012b00a}, {0x0f80, 0x00000d74}, {0x02e0, 0x00000012}, {0x03a2, 0x00050208}, {0x03b2, 0x00009186}, {0x0fb0, 0x000e3700}, {0x1688, 0x00049f81}, {0x0fd2, 0x0000ffff}, {0x168a, 0x00039fa2}, {0x1690, 0x0020640b}, {0x0258, 0x00002220}, {0x025a, 0x00002a20}, {0x025c, 0x00003060}, {0x025e, 0x00003fa0}, {0x03a6, 0x0000e0f0}, {0x0f92, 0x00001489}, {0x16a2, 0x00007000}, {0x16a6, 0x00071448}, {0x16a0, 0x00eeffdd}, {0x0fe8, 0x0091b06c}, {0x0fea, 0x00041600}, {0x16b0, 0x00eeff00}, {0x16b2, 0x00007000}, {0x16b4, 0x00000814}, {0x0f90, 0x00688980}, {0x03a4, 0x0000d8f0}, {0x0fc0, 0x00000400}, {0x07fa, 0x0050100f}, {0x0796, 0x00000003}, {0x07f8, 0x00c3ff98}, {0x0fa4, 0x0018292a}, {0x168c, 0x00d2c46f}, {0x17a2, 0x00000620}, {0x16a4, 0x0013132f}, {0x16a8, 0x00000000}, {0x0ffc, 0x00c0a028}, {0x0fec, 0x00901c09}, {0x0fee, 0x0004a6a1}, {0x0ffe, 0x00b01807}, }; const struct reg_val pre_init2[] = { {0x0486, 0x0008a518}, {0x0488, 0x006dc696}, {0x048a, 0x00000912}, {0x048e, 0x00000db6}, {0x049c, 0x00596596}, {0x049e, 0x00000514}, {0x04a2, 0x00410280}, {0x04a4, 0x00000000}, {0x04a6, 0x00000000}, {0x04a8, 0x00000000}, {0x04aa, 0x00000000}, {0x04ae, 0x007df7dd}, {0x04b0, 0x006d95d4}, {0x04b2, 0x00492410}, }; struct device *dev = &phydev->mdio.dev; const struct firmware *fw; unsigned int i; u16 crc, reg; bool serdes_init; 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); /* 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_PHY_EXT_PHY_CNTL_2, 0x0040); phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); phy_base_write(phydev, MSCC_PHY_TEST_PAGE_20, 0x4320); phy_base_write(phydev, MSCC_PHY_TEST_PAGE_24, 0x0c00); phy_base_write(phydev, MSCC_PHY_TEST_PAGE_9, 0x18ca); phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1b20); 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); 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_VSC8574_REVB_INT8051_FW, dev); if (ret) { dev_err(dev, "failed to load firmware %s, ret: %d\n", MSCC_VSC8574_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_VSC8574_REVB_INT8051_FW_START_ADDR, fw->size + 1, &crc); if (ret) goto out; if (crc == MSCC_VSC8574_REVB_INT8051_FW_CRC) { serdes_init = vsc8574_is_serdes_init(phydev); if (!serdes_init) { ret = vsc8584_micro_assert_reset(phydev); if (ret) { dev_err(dev, "%s: failed to assert reset of micro\n", __func__); goto out; } } } else { dev_dbg(dev, "FW CRC is not the expected one, patching FW\n"); serdes_init = false; if (vsc8584_patch_fw(phydev, fw)) dev_warn(dev, "failed to patch FW, expect non-optimal device\n"); } if (!serdes_init) { phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), 0x3eb7); phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), 0x4012); phy_base_write(phydev, MSCC_INT_MEM_CNTL, EN_PATCH_RAM_TRAP_ADDR(1)); 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_VSC8574_REVB_INT8051_FW_START_ADDR, fw->size + 1, &crc); if (ret) goto out; if (crc != MSCC_VSC8574_REVB_INT8051_FW_CRC) dev_warn(dev, "FW CRC after patching is not the expected one, expect non-optimal device\n"); } phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); ret = vsc8584_cmd(phydev, PROC_CMD_1588_DEFAULT_INIT | PROC_CMD_PHY_INIT); out: phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); release_firmware(fw); return ret; } /* 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)) { if ((phydev->phy_id & phydev->drv->phy_id_mask) == (PHY_ID_VSC8574 & phydev->drv->phy_id_mask)) ret = vsc8574_config_pre_init(phydev); else if ((phydev->phy_id & phydev->drv->phy_id_mask) == (PHY_ID_VSC8584 & phydev->drv->phy_id_mask)) ret = vsc8584_config_pre_init(phydev); else ret = -EINVAL; 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, phy_id; struct vsc8531_private *vsc8531 = phydev->priv; rc = vsc85xx_default_config(phydev); if (rc) return rc; rc = vsc85xx_mac_if_set(phydev, phydev->interface); if (rc) return rc; rc = vsc85xx_edge_rate_cntl_set(phydev, vsc8531->rate_magic); if (rc) return rc; phy_id = phydev->drv->phy_id & phydev->drv->phy_id_mask; if (PHY_ID_VSC8531 == phy_id || PHY_ID_VSC8541 == phy_id || PHY_ID_VSC8530 == phy_id || PHY_ID_VSC8540 == phy_id) { rc = vsc8531_pre_init_seq_set(phydev); if (rc) return rc; } rc = vsc85xx_eee_init_seq_set(phydev); if (rc) return rc; for (i = 0; i < vsc8531->nleds; i++) { rc = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]); if (rc) return rc; } 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 vsc8514_config_pre_init(struct phy_device *phydev) { /* These are the settings to override the silicon default * values to handle hardware performance of PHY. They * are set at Power-On state and remain until PHY Reset. */ const struct reg_val pre_init1[] = { {0x0f90, 0x00688980}, {0x0786, 0x00000003}, {0x07fa, 0x0050100f}, {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}, }; unsigned int i; u16 reg; 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, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); reg |= BIT(15); phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR); 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_TEST); reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); reg &= ~BIT(15); phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 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); return 0; } static u32 vsc85xx_csr_ctrl_phy_read(struct phy_device *phydev, u32 target, u32 reg) { unsigned long deadline; u32 val, val_l, val_h; phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL); /* CSR registers are grouped under different Target IDs. * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and * MSCC_EXT_PAGE_CSR_CNTL_19 registers. * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19. */ /* Setup the Target ID */ phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20, MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2)); /* Trigger CSR Action - Read into the CSR's */ phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19, MSCC_PHY_CSR_CNTL_19_CMD | MSCC_PHY_CSR_CNTL_19_READ | MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) | MSCC_PHY_CSR_CNTL_19_TARGET(target & 0x3)); /* Wait for register access*/ deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); do { usleep_range(500, 1000); val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19); } while (time_before(jiffies, deadline) && !(val & MSCC_PHY_CSR_CNTL_19_CMD)); if (!(val & MSCC_PHY_CSR_CNTL_19_CMD)) return 0xffffffff; /* Read the Least Significant Word (LSW) (17) */ val_l = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_17); /* Read the Most Significant Word (MSW) (18) */ val_h = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_18); phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); return (val_h << 16) | val_l; } static int vsc85xx_csr_ctrl_phy_write(struct phy_device *phydev, u32 target, u32 reg, u32 val) { unsigned long deadline; phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL); /* CSR registers are grouped under different Target IDs. * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and * MSCC_EXT_PAGE_CSR_CNTL_19 registers. * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19. */ /* Setup the Target ID */ phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20, MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2)); /* Write the Least Significant Word (LSW) (17) */ phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_17, (u16)val); /* Write the Most Significant Word (MSW) (18) */ phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_18, (u16)(val >> 16)); /* Trigger CSR Action - Write into the CSR's */ phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19, MSCC_PHY_CSR_CNTL_19_CMD | MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) | MSCC_PHY_CSR_CNTL_19_TARGET(target & 0x3)); /* Wait for register access */ deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); do { usleep_range(500, 1000); val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19); } while (time_before(jiffies, deadline) && !(val & MSCC_PHY_CSR_CNTL_19_CMD)); if (!(val & MSCC_PHY_CSR_CNTL_19_CMD)) return -ETIMEDOUT; phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); return 0; } static int __phy_write_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb, u32 op) { unsigned long deadline; u32 val; int ret; ret = vsc85xx_csr_ctrl_phy_write(phydev, PHY_MCB_TARGET, reg, op | (1 << mcb)); if (ret) return -EINVAL; deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); do { usleep_range(500, 1000); val = vsc85xx_csr_ctrl_phy_read(phydev, PHY_MCB_TARGET, reg); if (val == 0xffffffff) return -EIO; } while (time_before(jiffies, deadline) && (val & op)); if (val & op) return -ETIMEDOUT; return 0; } /* Trigger a read to the spcified MCB */ static int phy_update_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb) { return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_READ); } /* Trigger a write to the spcified MCB */ static int phy_commit_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb) { return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_WRITE); } static int vsc8514_config_init(struct phy_device *phydev) { struct vsc8531_private *vsc8531 = phydev->priv; unsigned long deadline; u16 val, addr; int ret, i; u32 reg; phydev->mdix_ctrl = ETH_TP_MDI_AUTO; mutex_lock(&phydev->mdio.bus->mdio_lock); __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED); addr = __phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_4); addr >>= PHY_CNTL_4_ADDR_POS; val = __phy_read(phydev, 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. * 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)) vsc8514_config_pre_init(phydev); 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; val |= MAC_CFG_QSGMII; ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val); if (ret) goto err; ret = vsc8584_cmd(phydev, PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT | PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_QSGMII_MAC); if (ret) goto err; /* 6g mcb */ phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0); /* lcpll mcb */ phy_update_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0); /* pll5gcfg0 */ ret = vsc85xx_csr_ctrl_phy_write(phydev, PHY_MCB_TARGET, PHY_S6G_PLL5G_CFG0, 0x7036f145); if (ret) goto err; phy_commit_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0); /* pllcfg */ ret = vsc85xx_csr_ctrl_phy_write(phydev, PHY_MCB_TARGET, PHY_S6G_PLL_CFG, (3 << PHY_S6G_PLL_ENA_OFFS_POS) | (120 << PHY_S6G_PLL_FSM_CTRL_DATA_POS) | (0 << PHY_S6G_PLL_FSM_ENA_POS)); if (ret) goto err; /* commoncfg */ ret = vsc85xx_csr_ctrl_phy_write(phydev, PHY_MCB_TARGET, PHY_S6G_COMMON_CFG, (0 << PHY_S6G_SYS_RST_POS) | (0 << PHY_S6G_ENA_LANE_POS) | (0 << PHY_S6G_ENA_LOOP_POS) | (0 << PHY_S6G_QRATE_POS) | (3 << PHY_S6G_IF_MODE_POS)); if (ret) goto err; /* misccfg */ ret = vsc85xx_csr_ctrl_phy_write(phydev, PHY_MCB_TARGET, PHY_S6G_MISC_CFG, 1); if (ret) goto err; /* gpcfg */ ret = vsc85xx_csr_ctrl_phy_write(phydev, PHY_MCB_TARGET, PHY_S6G_GPC_CFG, 768); if (ret) goto err; phy_commit_mcb_s6g(phydev, PHY_S6G_DFT_CFG2, 0); deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); do { usleep_range(500, 1000); phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0); /* read 6G MCB into CSRs */ reg = vsc85xx_csr_ctrl_phy_read(phydev, PHY_MCB_TARGET, PHY_S6G_PLL_STATUS); if (reg == 0xffffffff) { mutex_unlock(&phydev->mdio.bus->mdio_lock); return -EIO; } } while (time_before(jiffies, deadline) && (reg & BIT(12))); if (reg & BIT(12)) { mutex_unlock(&phydev->mdio.bus->mdio_lock); return -ETIMEDOUT; } /* misccfg */ ret = vsc85xx_csr_ctrl_phy_write(phydev, PHY_MCB_TARGET, PHY_S6G_MISC_CFG, 0); if (ret) goto err; phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0); deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); do { usleep_range(500, 1000); phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0); /* read 6G MCB into CSRs */ reg = vsc85xx_csr_ctrl_phy_read(phydev, PHY_MCB_TARGET, PHY_S6G_IB_STATUS0); if (reg == 0xffffffff) { mutex_unlock(&phydev->mdio.bus->mdio_lock); return -EIO; } } while (time_before(jiffies, deadline) && !(reg & BIT(8))); if (!(reg & BIT(8))) { mutex_unlock(&phydev->mdio.bus->mdio_lock); return -ETIMEDOUT; } mutex_unlock(&phydev->mdio.bus->mdio_lock); ret = phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); if (ret) return ret; ret = phy_modify(phydev, MSCC_PHY_EXT_PHY_CNTL_1, MEDIA_OP_MODE_MASK, MEDIA_OP_MODE_COPPER); if (ret) return ret; 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 ret; err: mutex_unlock(&phydev->mdio.bus->mdio_lock); return ret; } static int vsc85xx_ack_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) ? rc : 0; } static int vsc85xx_config_intr(struct phy_device *phydev) { int rc; if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { rc = phy_write(phydev, MII_VSC85XX_INT_MASK, MII_VSC85XX_INT_MASK_MASK); } else { rc = phy_write(phydev, MII_VSC85XX_INT_MASK, 0); if (rc < 0) return rc; rc = phy_read(phydev, MII_VSC85XX_INT_STATUS); } return rc; } static int vsc85xx_config_aneg(struct phy_device *phydev) { int rc; rc = vsc85xx_mdix_set(phydev, phydev->mdix_ctrl); if (rc < 0) return rc; return genphy_config_aneg(phydev); } static int vsc85xx_read_status(struct phy_device *phydev) { int rc; rc = vsc85xx_mdix_get(phydev, &phydev->mdix); if (rc < 0) return rc; return genphy_read_status(phydev); } static int vsc8514_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}; vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL); if (!vsc8531) return -ENOMEM; phydev->priv = vsc8531; vsc8531->nleds = 4; vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES; vsc8531->hw_stats = vsc85xx_hw_stats; vsc8531->nstats = ARRAY_SIZE(vsc85xx_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 vsc8574_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}; 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 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; int rate_magic; u32 default_mode[2] = {VSC8531_LINK_1000_ACTIVITY, VSC8531_LINK_100_ACTIVITY}; rate_magic = vsc85xx_edge_rate_magic_get(phydev); if (rate_magic < 0) return rate_magic; vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL); if (!vsc8531) return -ENOMEM; phydev->priv = vsc8531; vsc8531->rate_magic = rate_magic; vsc8531->nleds = 2; vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES; vsc8531->hw_stats = vsc85xx_hw_stats; vsc8531->nstats = ARRAY_SIZE(vsc85xx_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); } /* Microsemi VSC85xx PHYs */ static struct phy_driver vsc85xx_driver[] = { { .phy_id = PHY_ID_VSC8514, .name = "Microsemi GE VSC8514 SyncE", .phy_id_mask = 0xfffffff0, .soft_reset = &genphy_soft_reset, .config_init = &vsc8514_config_init, .config_aneg = &vsc85xx_config_aneg, .read_status = &vsc85xx_read_status, .ack_interrupt = &vsc85xx_ack_interrupt, .config_intr = &vsc85xx_config_intr, .suspend = &genphy_suspend, .resume = &genphy_resume, .probe = &vsc8514_probe, .set_wol = &vsc85xx_wol_set, .get_wol = &vsc85xx_wol_get, .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, }, { .phy_id = PHY_ID_VSC8530, .name = "Microsemi FE VSC8530", .phy_id_mask = 0xfffffff0, /* PHY_BASIC_FEATURES */ .soft_reset = &genphy_soft_reset, .config_init = &vsc85xx_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, .suspend = &genphy_suspend, .resume = &genphy_resume, .probe = &vsc85xx_probe, .set_wol = &vsc85xx_wol_set, .get_wol = &vsc85xx_wol_get, .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, }, { .phy_id = PHY_ID_VSC8531, .name = "Microsemi VSC8531", .phy_id_mask = 0xfffffff0, /* PHY_GBIT_FEATURES */ .soft_reset = &genphy_soft_reset, .config_init = &vsc85xx_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, .suspend = &genphy_suspend, .resume = &genphy_resume, .probe = &vsc85xx_probe, .set_wol = &vsc85xx_wol_set, .get_wol = &vsc85xx_wol_get, .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, }, { .phy_id = PHY_ID_VSC8540, .name = "Microsemi FE VSC8540 SyncE", .phy_id_mask = 0xfffffff0, /* PHY_BASIC_FEATURES */ .soft_reset = &genphy_soft_reset, .config_init = &vsc85xx_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, .suspend = &genphy_suspend, .resume = &genphy_resume, .probe = &vsc85xx_probe, .set_wol = &vsc85xx_wol_set, .get_wol = &vsc85xx_wol_get, .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, }, { .phy_id = PHY_ID_VSC8541, .name = "Microsemi VSC8541 SyncE", .phy_id_mask = 0xfffffff0, /* PHY_GBIT_FEATURES */ .soft_reset = &genphy_soft_reset, .config_init = &vsc85xx_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, .suspend = &genphy_suspend, .resume = &genphy_resume, .probe = &vsc85xx_probe, .set_wol = &vsc85xx_wol_set, .get_wol = &vsc85xx_wol_get, .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, }, { .phy_id = PHY_ID_VSC8574, .name = "Microsemi GE VSC8574 SyncE", .phy_id_mask = 0xfffffff0, /* PHY_GBIT_FEATURES */ .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 = &vsc8574_probe, .set_wol = &vsc85xx_wol_set, .get_wol = &vsc85xx_wol_get, .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, }, { .phy_id = PHY_ID_VSC8584, .name = "Microsemi GE VSC8584 SyncE", .phy_id_mask = 0xfffffff0, /* PHY_GBIT_FEATURES */ .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, } }; module_phy_driver(vsc85xx_driver); static struct mdio_device_id __maybe_unused vsc85xx_tbl[] = { { PHY_ID_VSC8514, 0xfffffff0, }, { PHY_ID_VSC8530, 0xfffffff0, }, { PHY_ID_VSC8531, 0xfffffff0, }, { PHY_ID_VSC8540, 0xfffffff0, }, { PHY_ID_VSC8541, 0xfffffff0, }, { PHY_ID_VSC8574, 0xfffffff0, }, { PHY_ID_VSC8584, 0xfffffff0, }, { } }; MODULE_DEVICE_TABLE(mdio, vsc85xx_tbl); MODULE_DESCRIPTION("Microsemi VSC85xx PHY driver"); MODULE_AUTHOR("Nagaraju Lakkaraju"); MODULE_LICENSE("Dual MIT/GPL");