// 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 #include "mscc_serdes.h" #include "mscc.h" 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, }, }; #if IS_ENABLED(CONFIG_OF_MDIO) 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 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++) strscpy(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) { const u8 *mac_addr = phydev->attached_dev->dev_addr; int rc; u16 reg_val; u8 i; u16 pwd[3] = {0, 0, 0}; struct ethtool_wolinfo *wol_conf = wol; rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2); if (rc < 0) return phy_restore_page(phydev, rc, rc); 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) return rc; 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) return rc; } 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) return rc; } /* Clear WOL iterrupt status */ reg_val = phy_read(phydev, MII_VSC85XX_INT_STATUS); return 0; } 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; rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2); if (rc < 0) goto out_restore_page; 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_restore_page: phy_restore_page(phydev, rc, rc > 0 ? 0 : rc); } #if IS_ENABLED(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_TXID: case PHY_INTERFACE_MODE_RGMII_RXID: case PHY_INTERFACE_MODE_RGMII_ID: 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; } /* Set the RGMII RX and TX clock skews individually, according to the PHY * interface type, to: * * 0.2 ns (their default, and lowest, hardware value) if delays should * not be enabled * * 2.0 ns (which causes the data to be sampled at exactly half way between * clock transitions at 1000 Mbps) if delays should be enabled */ static int vsc85xx_update_rgmii_cntl(struct phy_device *phydev, u32 rgmii_cntl, u16 rgmii_rx_delay_mask, u16 rgmii_tx_delay_mask) { u16 rgmii_rx_delay_pos = ffs(rgmii_rx_delay_mask) - 1; u16 rgmii_tx_delay_pos = ffs(rgmii_tx_delay_mask) - 1; u16 reg_val = 0; u16 mask = 0; int rc = 0; /* For traffic to pass, the VSC8502 family needs the RX_CLK disable bit * to be unset for all PHY modes, so do that as part of the paged * register modification. * For some family members (like VSC8530/31/40/41) this bit is reserved * and read-only, and the RX clock is enabled by default. */ if (rgmii_cntl == VSC8502_RGMII_CNTL) mask |= VSC8502_RGMII_RX_CLK_DISABLE; if (phy_interface_is_rgmii(phydev)) mask |= rgmii_rx_delay_mask | rgmii_tx_delay_mask; mutex_lock(&phydev->lock); if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID || phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) reg_val |= RGMII_CLK_DELAY_2_0_NS << rgmii_rx_delay_pos; if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID || phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) reg_val |= RGMII_CLK_DELAY_2_0_NS << rgmii_tx_delay_pos; if (mask) rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2, rgmii_cntl, mask, reg_val); mutex_unlock(&phydev->lock); return rc; } static int vsc85xx_default_config(struct phy_device *phydev) { phydev->mdix_ctrl = ETH_TP_MDI_AUTO; return vsc85xx_update_rgmii_cntl(phydev, VSC8502_RGMII_CNTL, VSC8502_RGMII_RX_DELAY_MASK, VSC8502_RGMII_TX_DELAY_MASK); } 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; static 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, TR_CLK_DISABLE, TR_CLK_DISABLE); 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) { static 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 */ int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val) { if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) { dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n"); dump_stack(); } return __phy_package_write(phydev, regnum, val); } /* phydev->bus->mdio_lock should be locked when using this function */ int phy_base_read(struct phy_device *phydev, u32 regnum) { if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) { dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n"); dump_stack(); } return __phy_package_read(phydev, regnum); } u32 vsc85xx_csr_read(struct phy_device *phydev, enum csr_target 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)); if ((target >> 2 == 0x1) || (target >> 2 == 0x3)) /* non-MACsec access */ target &= 0x3; else target = 0; /* 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)); /* 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; } int vsc85xx_csr_write(struct phy_device *phydev, enum csr_target 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)); if ((target >> 2 == 0x1) || (target >> 2 == 0x3)) /* non-MACsec access */ target &= 0x3; else target = 0; /* 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)); /* 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; } /* 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 */ 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) { static 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}, }; static 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 |= TR_CLK_DISABLE; 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 &= ~TR_CLK_DISABLE; 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; } /* Access LCPLL Cfg_2 */ static void vsc8584_pll5g_cfg2_wr(struct phy_device *phydev, bool disable_fsm) { u32 rd_dat; rd_dat = vsc85xx_csr_read(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2); rd_dat &= ~BIT(PHY_S6G_CFG2_FSM_DIS); rd_dat |= (disable_fsm << PHY_S6G_CFG2_FSM_DIS); vsc85xx_csr_write(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2, rd_dat); } /* trigger a read to the spcified MCB */ static int vsc8584_mcb_rd_trig(struct phy_device *phydev, u32 mcb_reg_addr, u8 mcb_slave_num) { u32 rd_dat = 0; /* read MCB */ vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr, (0x40000000 | (1L << mcb_slave_num))); return read_poll_timeout(vsc85xx_csr_read, rd_dat, !(rd_dat & 0x40000000), 4000, 200000, 0, phydev, MACRO_CTRL, mcb_reg_addr); } /* trigger a write to the spcified MCB */ static int vsc8584_mcb_wr_trig(struct phy_device *phydev, u32 mcb_reg_addr, u8 mcb_slave_num) { u32 rd_dat = 0; /* write back MCB */ vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr, (0x80000000 | (1L << mcb_slave_num))); return read_poll_timeout(vsc85xx_csr_read, rd_dat, !(rd_dat & 0x80000000), 4000, 200000, 0, phydev, MACRO_CTRL, mcb_reg_addr); } /* Sequence to Reset LCPLL for the VIPER and ELISE PHY */ static int vsc8584_pll5g_reset(struct phy_device *phydev) { bool dis_fsm; int ret = 0; ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0); if (ret < 0) goto done; dis_fsm = 1; /* Reset LCPLL */ vsc8584_pll5g_cfg2_wr(phydev, dis_fsm); /* write back LCPLL MCB */ ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0); if (ret < 0) goto done; /* 10 mSec sleep while LCPLL is hold in reset */ usleep_range(10000, 20000); /* read LCPLL MCB into CSRs */ ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0); if (ret < 0) goto done; dis_fsm = 0; /* Release the Reset of LCPLL */ vsc8584_pll5g_cfg2_wr(phydev, dis_fsm); /* write back LCPLL MCB */ ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0); if (ret < 0) goto done; usleep_range(110000, 200000); done: return ret; } /* bus->mdio_lock should be locked when using this function */ static int vsc8584_config_pre_init(struct phy_device *phydev) { static 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}, }; static 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; ret = vsc8584_pll5g_reset(phydev); if (ret < 0) { dev_err(dev, "failed LCPLL reset, ret: %d\n", ret); return 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 |= TR_CLK_DISABLE; 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 &= ~TR_CLK_DISABLE; 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; /* Write patch vector 0, to skip IB cal polling */ phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); reg = MSCC_ROM_TRAP_SERDES_6G_CFG; /* ROM address to trap, for patch vector 0 */ ret = phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), reg); if (ret) goto out; reg = MSCC_RAM_TRAP_SERDES_6G_CFG; /* RAM address to jump to, when patch vector 0 enabled */ ret = phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), reg); if (ret) goto out; reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); reg |= PATCH_VEC_ZERO_EN; /* bit 8, enable patch vector 0 */ ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg); 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; } static void vsc8584_get_base_addr(struct phy_device *phydev) { struct vsc8531_private *vsc8531 = phydev->priv; u16 val, addr; phy_lock_mdio_bus(phydev); __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); __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); phy_unlock_mdio_bus(phydev); /* In the package, there are two pairs of PHYs (PHY0 + PHY2 and * PHY1 + PHY3). The first PHY of each pair (PHY0 and PHY1) is * the base PHY for timestamping operations. */ vsc8531->ts_base_addr = phydev->mdio.addr; vsc8531->ts_base_phy = addr; if (val & PHY_ADDR_REVERSED) { vsc8531->base_addr = phydev->mdio.addr + addr; if (addr > 1) { vsc8531->ts_base_addr += 2; vsc8531->ts_base_phy += 2; } } else { vsc8531->base_addr = phydev->mdio.addr - addr; if (addr > 1) { vsc8531->ts_base_addr -= 2; vsc8531->ts_base_phy -= 2; } } vsc8531->addr = addr; } static void vsc85xx_coma_mode_release(struct phy_device *phydev) { /* The coma mode (pin or reg) provides an optional feature that * may be used to control when the PHYs become active. * Alternatively the COMA_MODE pin may be connected low * so that the PHYs are fully active once out of reset. */ /* Enable output (mode=0) and write zero to it */ vsc85xx_phy_write_page(phydev, MSCC_PHY_PAGE_EXTENDED_GPIO); __phy_modify(phydev, MSCC_PHY_GPIO_CONTROL_2, MSCC_PHY_COMA_MODE | MSCC_PHY_COMA_OUTPUT, 0); vsc85xx_phy_write_page(phydev, MSCC_PHY_PAGE_STANDARD); } static int vsc8584_config_host_serdes(struct phy_device *phydev) { struct vsc8531_private *vsc8531 = phydev->priv; int ret; u16 val; ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); if (ret) return ret; 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 if (phydev->interface == PHY_INTERFACE_MODE_SGMII) { val |= MAC_CFG_SGMII; } else { ret = -EINVAL; return ret; } ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val); if (ret) return ret; ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); if (ret) return ret; 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) return ret; usleep_range(10000, 20000); /* Disable SerDes for 100Base-FX */ ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | PROC_CMD_FIBER_PORT(vsc8531->addr) | PROC_CMD_FIBER_DISABLE | PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX); if (ret) return ret; /* Disable SerDes for 1000Base-X */ ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | PROC_CMD_FIBER_PORT(vsc8531->addr) | PROC_CMD_FIBER_DISABLE | PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X); if (ret) return ret; return vsc85xx_sd6g_config_v2(phydev); } static int vsc8574_config_host_serdes(struct phy_device *phydev) { struct vsc8531_private *vsc8531 = phydev->priv; int ret; u16 val; ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); if (ret) return ret; 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 if (phydev->interface == PHY_INTERFACE_MODE_SGMII) { val |= MAC_CFG_SGMII; } else if (phy_interface_is_rgmii(phydev)) { val |= MAC_CFG_RGMII; } else { ret = -EINVAL; return ret; } ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val); if (ret) return ret; ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); if (ret) return ret; if (!phy_interface_is_rgmii(phydev)) { 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) return ret; usleep_range(10000, 20000); } /* Disable SerDes for 100Base-FX */ ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | PROC_CMD_FIBER_PORT(vsc8531->addr) | PROC_CMD_FIBER_DISABLE | PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX); if (ret) return ret; /* Disable SerDes for 1000Base-X */ return vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | PROC_CMD_FIBER_PORT(vsc8531->addr) | PROC_CMD_FIBER_DISABLE | PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X); } static int vsc8584_config_init(struct phy_device *phydev) { struct vsc8531_private *vsc8531 = phydev->priv; int ret, i; u16 val; phydev->mdix_ctrl = ETH_TP_MDI_AUTO; phy_lock_mdio_bus(phydev); /* 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 (phy_package_init_once(phydev)) { /* The following switch statement assumes that the lowest * nibble of the phy_id_mask is always 0. This works because * the lowest nibble of the PHY_ID's below are also 0. */ WARN_ON(phydev->drv->phy_id_mask & 0xf); switch (phydev->phy_id & phydev->drv->phy_id_mask) { case PHY_ID_VSC8504: case PHY_ID_VSC8552: case PHY_ID_VSC8572: case PHY_ID_VSC8574: ret = vsc8574_config_pre_init(phydev); if (ret) goto err; ret = vsc8574_config_host_serdes(phydev); if (ret) goto err; break; case PHY_ID_VSC856X: case PHY_ID_VSC8575: case PHY_ID_VSC8582: case PHY_ID_VSC8584: ret = vsc8584_config_pre_init(phydev); if (ret) goto err; ret = vsc8584_config_host_serdes(phydev); if (ret) goto err; vsc85xx_coma_mode_release(phydev); break; default: ret = -EINVAL; break; } if (ret) goto err; } phy_unlock_mdio_bus(phydev); ret = vsc8584_macsec_init(phydev); if (ret) return ret; ret = vsc8584_ptp_init(phydev); if (ret) return ret; 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 << MEDIA_OP_MODE_POS) | (VSC8584_MAC_IF_SELECTION_SGMII << VSC8584_MAC_IF_SELECTION_POS); ret = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, val); if (ret) return ret; ret = vsc85xx_update_rgmii_cntl(phydev, VSC8572_RGMII_CNTL, VSC8572_RGMII_RX_DELAY_MASK, VSC8572_RGMII_TX_DELAY_MASK); 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 0; err: phy_unlock_mdio_bus(phydev); return ret; } static irqreturn_t vsc8584_handle_interrupt(struct phy_device *phydev) { irqreturn_t ret; int irq_status; irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS); if (irq_status < 0) return IRQ_NONE; /* Timestamping IRQ does not set a bit in the global INT_STATUS, so * irq_status would be 0. */ ret = vsc8584_handle_ts_interrupt(phydev); if (!(irq_status & MII_VSC85XX_INT_MASK_MASK)) return ret; if (irq_status & MII_VSC85XX_INT_MASK_EXT) vsc8584_handle_macsec_interrupt(phydev); if (irq_status & MII_VSC85XX_INT_MASK_LINK_CHG) phy_trigger_machine(phydev); return IRQ_HANDLED; } 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 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_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_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 specified MCB */ 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 specified MCB */ 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_host_serdes(struct phy_device *phydev) { int ret; u16 val; ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); if (ret) return ret; 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) return ret; ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); if (ret) return ret; ret = vsc8584_cmd(phydev, PROC_CMD_NOP); if (ret) return ret; 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) { dev_err(&phydev->mdio.dev, "%s: QSGMII error: %d\n", __func__, ret); return ret; } /* Apply 6G SerDes FOJI Algorithm * Initial condition requirement: * 1. hold 8051 in reset * 2. disable patch vector 0, in order to allow IB cal poll during FoJi * 3. deassert 8051 reset after change patch vector status * 4. proceed with FoJi (vsc85xx_sd6g_config_v2) */ vsc8584_micro_assert_reset(phydev); val = phy_base_read(phydev, MSCC_INT_MEM_CNTL); /* clear bit 8, to disable patch vector 0 */ val &= ~PATCH_VEC_ZERO_EN; ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, val); /* Enable 8051 clock, don't set patch present, disable PRAM clock override */ vsc8584_micro_deassert_reset(phydev, false); return vsc85xx_sd6g_config_v2(phydev); } 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. */ static 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}, }; struct device *dev = &phydev->mdio.dev; unsigned int i; u16 reg; int ret; ret = vsc8584_pll5g_reset(phydev); if (ret < 0) { dev_err(dev, "failed LCPLL reset, ret: %d\n", ret); return 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, 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); /* Add pre-patching commands to: * 1. enable 8051 clock, operate 8051 clock at 125 MHz * instead of HW default 62.5MHz * 2. write patch vector 0, to skip IB cal polling executed * as part of the 0x80E0 ROM command */ vsc8584_micro_deassert_reset(phydev, false); vsc8584_micro_assert_reset(phydev); phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); /* ROM address to trap, for patch vector 0 */ reg = MSCC_ROM_TRAP_SERDES_6G_CFG; ret = phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), reg); if (ret) goto err; /* RAM address to jump to, when patch vector 0 enabled */ reg = MSCC_RAM_TRAP_SERDES_6G_CFG; ret = phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), reg); if (ret) goto err; reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); reg |= PATCH_VEC_ZERO_EN; /* bit 8, enable patch vector 0 */ ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg); if (ret) goto err; /* Enable 8051 clock, don't set patch present * yet, disable PRAM clock override */ vsc8584_micro_deassert_reset(phydev, false); return ret; err: /* restore 8051 and bail w error */ vsc8584_micro_deassert_reset(phydev, false); return ret; } static int vsc8514_config_init(struct phy_device *phydev) { struct vsc8531_private *vsc8531 = phydev->priv; int ret, i; phydev->mdix_ctrl = ETH_TP_MDI_AUTO; phy_lock_mdio_bus(phydev); /* 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 (phy_package_init_once(phydev)) { ret = vsc8514_config_pre_init(phydev); if (ret) goto err; ret = vsc8514_config_host_serdes(phydev); if (ret) goto err; vsc85xx_coma_mode_release(phydev); } phy_unlock_mdio_bus(phydev); ret = phy_modify(phydev, MSCC_PHY_EXT_PHY_CNTL_1, MEDIA_OP_MODE_MASK, MEDIA_OP_MODE_COPPER << MEDIA_OP_MODE_POS); 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: phy_unlock_mdio_bus(phydev); 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 = vsc85xx_ack_interrupt(phydev); if (rc) return rc; vsc8584_config_macsec_intr(phydev); vsc8584_config_ts_intr(phydev); 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); if (rc < 0) return rc; rc = vsc85xx_ack_interrupt(phydev); } return rc; } static irqreturn_t vsc85xx_handle_interrupt(struct phy_device *phydev) { int irq_status; irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS); if (irq_status < 0) { phy_error(phydev); return IRQ_NONE; } if (!(irq_status & MII_VSC85XX_INT_MASK_MASK)) return IRQ_NONE; phy_trigger_machine(phydev); return IRQ_HANDLED; } 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; vsc8584_get_base_addr(phydev); devm_phy_package_join(&phydev->mdio.dev, phydev, vsc8531->base_addr, 0); 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_kcalloc(&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; vsc8584_get_base_addr(phydev); devm_phy_package_join(&phydev->mdio.dev, phydev, vsc8531->base_addr, 0); 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_kcalloc(&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}; int ret; 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; vsc8584_get_base_addr(phydev); devm_phy_package_join(&phydev->mdio.dev, phydev, vsc8531->base_addr, sizeof(struct vsc85xx_shared_private)); 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_kcalloc(&phydev->mdio.dev, vsc8531->nstats, sizeof(u64), GFP_KERNEL); if (!vsc8531->stats) return -ENOMEM; if (phy_package_probe_once(phydev)) { ret = vsc8584_ptp_probe_once(phydev); if (ret) return ret; } ret = vsc8584_ptp_probe(phydev); if (ret) return ret; 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_kcalloc(&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_VSC8502, .name = "Microsemi GE VSC8502 SyncE", .phy_id_mask = 0xfffffff0, /* PHY_BASIC_FEATURES */ .soft_reset = &genphy_soft_reset, .config_init = &vsc85xx_config_init, .config_aneg = &vsc85xx_config_aneg, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_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_VSC8504, .name = "Microsemi GE VSC8504 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, .handle_interrupt = vsc85xx_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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_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, .handle_interrupt = vsc85xx_handle_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, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_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, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_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, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_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, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_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_VSC8552, .name = "Microsemi GE VSC8552 SyncE", .phy_id_mask = 0xfffffff0, /* PHY_GBIT_FEATURES */ .soft_reset = &genphy_soft_reset, .config_init = &vsc8584_config_init, .config_aneg = &vsc85xx_config_aneg, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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_VSC856X, .name = "Microsemi GE VSC856X SyncE", .phy_id_mask = 0xfffffff0, /* PHY_GBIT_FEATURES */ .soft_reset = &genphy_soft_reset, .config_init = &vsc8584_config_init, .config_aneg = &vsc85xx_config_aneg, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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, }, { .phy_id = PHY_ID_VSC8572, .name = "Microsemi GE VSC8572 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, .handle_interrupt = &vsc8584_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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_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, .handle_interrupt = vsc85xx_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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_VSC8575, .name = "Microsemi GE VSC8575 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, .handle_interrupt = &vsc8584_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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, }, { .phy_id = PHY_ID_VSC8582, .name = "Microsemi GE VSC8582 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, .handle_interrupt = &vsc8584_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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, }, { .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, .handle_interrupt = &vsc8584_handle_interrupt, .config_intr = &vsc85xx_config_intr, .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, .link_change_notify = &vsc85xx_link_change_notify, } }; module_phy_driver(vsc85xx_driver); static struct mdio_device_id __maybe_unused vsc85xx_tbl[] = { { PHY_ID_VSC8502, 0xfffffff0, }, { PHY_ID_VSC8504, 0xfffffff0, }, { PHY_ID_VSC8514, 0xfffffff0, }, { PHY_ID_VSC8530, 0xfffffff0, }, { PHY_ID_VSC8531, 0xfffffff0, }, { PHY_ID_VSC8540, 0xfffffff0, }, { PHY_ID_VSC8541, 0xfffffff0, }, { PHY_ID_VSC8552, 0xfffffff0, }, { PHY_ID_VSC856X, 0xfffffff0, }, { PHY_ID_VSC8572, 0xfffffff0, }, { PHY_ID_VSC8574, 0xfffffff0, }, { PHY_ID_VSC8575, 0xfffffff0, }, { PHY_ID_VSC8582, 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"); MODULE_FIRMWARE(MSCC_VSC8584_REVB_INT8051_FW); MODULE_FIRMWARE(MSCC_VSC8574_REVB_INT8051_FW);