From 66458c49aa14ebc9ba2e4f9b6a323b8ff122807b Mon Sep 17 00:00:00 2001 From: John Crispin Date: Fri, 2 Aug 2019 10:33:28 +0200 Subject: mediatek: add v4.19 support Bump the target to v4.19. Add a patch with additional eth driver fixes/features that MTK provided aswell as the driver for the new mt7530 switch. Signed-off-by: John Crispin --- .../files-4.19/drivers/net/phy/mtk/mt753x/Kconfig | 4 + .../files-4.19/drivers/net/phy/mtk/mt753x/Makefile | 11 + .../files-4.19/drivers/net/phy/mtk/mt753x/mt7530.c | 602 +++++++++++++++ .../files-4.19/drivers/net/phy/mtk/mt753x/mt7530.h | 14 + .../files-4.19/drivers/net/phy/mtk/mt753x/mt7531.c | 851 +++++++++++++++++++++ .../files-4.19/drivers/net/phy/mtk/mt753x/mt7531.h | 14 + .../files-4.19/drivers/net/phy/mtk/mt753x/mt753x.h | 232 ++++++ .../drivers/net/phy/mtk/mt753x/mt753x_common.c | 94 +++ .../drivers/net/phy/mtk/mt753x/mt753x_mdio.c | 740 ++++++++++++++++++ .../drivers/net/phy/mtk/mt753x/mt753x_nl.c | 386 ++++++++++ .../drivers/net/phy/mtk/mt753x/mt753x_nl.h | 47 ++ .../drivers/net/phy/mtk/mt753x/mt753x_regs.h | 298 ++++++++ .../drivers/net/phy/mtk/mt753x/mt753x_swconfig.c | 695 +++++++++++++++++ .../drivers/net/phy/mtk/mt753x/mt753x_swconfig.h | 19 + 14 files changed, 4007 insertions(+) create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Kconfig create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Makefile create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.c create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.h create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.c create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.h create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x.h create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_common.c create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_mdio.c create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.c create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.h create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_regs.h create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c create mode 100644 target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.h (limited to 'target/linux/mediatek/files-4.19/drivers') diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Kconfig b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Kconfig new file mode 100644 index 0000000000..cf83c6a436 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Kconfig @@ -0,0 +1,4 @@ + +config MT753X_GSW + tristate "Driver for the MediaTek MT753x switch" + diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Makefile b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Makefile new file mode 100644 index 0000000000..3829bacfe9 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for MediaTek MT753x gigabit switch +# + +obj-$(CONFIG_MT753X_GSW) += mt753x.o + +mt753x-$(CONFIG_SWCONFIG) += mt753x_swconfig.o + +mt753x-y += mt753x_mdio.o mt7530.o mt7531.o \ + mt753x_common.o mt753x_nl.o + diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.c b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.c new file mode 100644 index 0000000000..45d4984c1a --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.c @@ -0,0 +1,602 @@ +/* + * Driver for MediaTek MT7530 gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +#include "mt753x.h" +#include "mt753x_regs.h" + +/* MT7530 registers */ + +/* Unique fields of PMCR for MT7530 */ +#define FORCE_MODE BIT(15) + +/* Unique fields of GMACCR for MT7530 */ +#define VLAN_SUPT_NO_S 14 +#define VLAN_SUPT_NO_M 0x1c000 +#define LATE_COL_DROP BIT(13) + +/* Unique fields of (M)HWSTRAP for MT7530 */ +#define BOND_OPTION BIT(24) +#define P5_PHY0_SEL BIT(20) +#define CHG_TRAP BIT(16) +#define LOOPDET_DIS BIT(14) +#define P5_INTF_SEL_GMAC5 BIT(13) +#define SMI_ADDR_S 11 +#define SMI_ADDR_M 0x1800 +#define XTAL_FSEL_S 9 +#define XTAL_FSEL_M 0x600 +#define P6_INTF_DIS BIT(8) +#define P5_INTF_MODE_RGMII BIT(7) +#define P5_INTF_DIS_S BIT(6) +#define C_MDIO_BPS_S BIT(5) +#define EEPROM_EN_S BIT(4) + +/* PHY EEE Register bitmap of define */ +#define PHY_DEV07 0x07 +#define PHY_DEV07_REG_03C 0x3c + +/* PHY Extend Register 0x14 bitmap of define */ +#define PHY_EXT_REG_14 0x14 + +/* Fields of PHY_EXT_REG_14 */ +#define PHY_EN_DOWN_SHFIT BIT(4) + +/* PHY Token Ring Register 0x10 bitmap of define */ +#define PHY_TR_REG_10 0x10 + +/* PHY Token Ring Register 0x12 bitmap of define */ +#define PHY_TR_REG_12 0x12 + +/* PHY LPI PCS/DSP Control Register bitmap of define */ +#define PHY_LPI_REG_11 0x11 + +/* PHY DEV 0x1e Register bitmap of define */ +#define PHY_DEV1E 0x1e +#define PHY_DEV1E_REG_123 0x123 +#define PHY_DEV1E_REG_A6 0xa6 + +/* Values of XTAL_FSEL */ +#define XTAL_20MHZ 1 +#define XTAL_40MHZ 2 +#define XTAL_25MHZ 3 + +#define P6ECR 0x7830 +#define P6_INTF_MODE_TRGMII BIT(0) + +#define TRGMII_TXCTRL 0x7a40 +#define TRAIN_TXEN BIT(31) +#define TXC_INV BIT(30) +#define TX_DOEO BIT(29) +#define TX_RST BIT(28) + +#define TRGMII_TD0_CTRL 0x7a50 +#define TRGMII_TD1_CTRL 0x7a58 +#define TRGMII_TD2_CTRL 0x7a60 +#define TRGMII_TD3_CTRL 0x7a68 +#define TRGMII_TXCTL_CTRL 0x7a70 +#define TRGMII_TCK_CTRL 0x7a78 +#define TRGMII_TD_CTRL(n) (0x7a50 + (n) * 8) +#define NUM_TRGMII_CTRL 6 +#define TX_DMPEDRV BIT(31) +#define TX_DM_SR BIT(15) +#define TX_DMERODT BIT(14) +#define TX_DMOECTL BIT(13) +#define TX_TAP_S 8 +#define TX_TAP_M 0xf00 +#define TX_TRAIN_WD_S 0 +#define TX_TRAIN_WD_M 0xff + +#define TRGMII_TD0_ODT 0x7a54 +#define TRGMII_TD1_ODT 0x7a5c +#define TRGMII_TD2_ODT 0x7a64 +#define TRGMII_TD3_ODT 0x7a6c +#define TRGMII_TXCTL_ODT 0x7574 +#define TRGMII_TCK_ODT 0x757c +#define TRGMII_TD_ODT(n) (0x7a54 + (n) * 8) +#define NUM_TRGMII_ODT 6 +#define TX_DM_DRVN_PRE_S 30 +#define TX_DM_DRVN_PRE_M 0xc0000000 +#define TX_DM_DRVP_PRE_S 28 +#define TX_DM_DRVP_PRE_M 0x30000000 +#define TX_DM_TDSEL_S 24 +#define TX_DM_TDSEL_M 0xf000000 +#define TX_ODTEN BIT(23) +#define TX_DME_PRE BIT(20) +#define TX_DM_DRVNT0 BIT(19) +#define TX_DM_DRVPT0 BIT(18) +#define TX_DM_DRVNTE BIT(17) +#define TX_DM_DRVPTE BIT(16) +#define TX_DM_ODTN_S 12 +#define TX_DM_ODTN_M 0x7000 +#define TX_DM_ODTP_S 8 +#define TX_DM_ODTP_M 0x700 +#define TX_DM_DRVN_S 4 +#define TX_DM_DRVN_M 0xf0 +#define TX_DM_DRVP_S 0 +#define TX_DM_DRVP_M 0x0f + +#define P5RGMIIRXCR 0x7b00 +#define CSR_RGMII_RCTL_CFG_S 24 +#define CSR_RGMII_RCTL_CFG_M 0x7000000 +#define CSR_RGMII_RXD_CFG_S 16 +#define CSR_RGMII_RXD_CFG_M 0x70000 +#define CSR_RGMII_EDGE_ALIGN BIT(8) +#define CSR_RGMII_RXC_90DEG_CFG_S 4 +#define CSR_RGMII_RXC_90DEG_CFG_M 0xf0 +#define CSR_RGMII_RXC_0DEG_CFG_S 0 +#define CSR_RGMII_RXC_0DEG_CFG_M 0x0f + +#define P5RGMIITXCR 0x7b04 +#define CSR_RGMII_TXEN_CFG_S 16 +#define CSR_RGMII_TXEN_CFG_M 0x70000 +#define CSR_RGMII_TXD_CFG_S 8 +#define CSR_RGMII_TXD_CFG_M 0x700 +#define CSR_RGMII_TXC_CFG_S 0 +#define CSR_RGMII_TXC_CFG_M 0x1f + +#define CHIP_REV 0x7ffc +#define CHIP_NAME_S 16 +#define CHIP_NAME_M 0xffff0000 +#define CHIP_REV_S 0 +#define CHIP_REV_M 0x0f + +/* MMD registers */ +#define CORE_PLL_GROUP2 0x401 +#define RG_SYSPLL_EN_NORMAL BIT(15) +#define RG_SYSPLL_VODEN BIT(14) +#define RG_SYSPLL_POSDIV_S 5 +#define RG_SYSPLL_POSDIV_M 0x60 + +#define CORE_PLL_GROUP4 0x403 +#define RG_SYSPLL_DDSFBK_EN BIT(12) +#define RG_SYSPLL_BIAS_EN BIT(11) +#define RG_SYSPLL_BIAS_LPF_EN BIT(10) + +#define CORE_PLL_GROUP5 0x404 +#define RG_LCDDS_PCW_NCPO1_S 0 +#define RG_LCDDS_PCW_NCPO1_M 0xffff + +#define CORE_PLL_GROUP6 0x405 +#define RG_LCDDS_PCW_NCPO0_S 0 +#define RG_LCDDS_PCW_NCPO0_M 0xffff + +#define CORE_PLL_GROUP7 0x406 +#define RG_LCDDS_PWDB BIT(15) +#define RG_LCDDS_ISO_EN BIT(13) +#define RG_LCCDS_C_S 4 +#define RG_LCCDS_C_M 0x70 +#define RG_LCDDS_PCW_NCPO_CHG BIT(3) + +#define CORE_PLL_GROUP10 0x409 +#define RG_LCDDS_SSC_DELTA_S 0 +#define RG_LCDDS_SSC_DELTA_M 0xfff + +#define CORE_PLL_GROUP11 0x40a +#define RG_LCDDS_SSC_DELTA1_S 0 +#define RG_LCDDS_SSC_DELTA1_M 0xfff + +#define CORE_GSWPLL_GCR_1 0x040d +#define GSWPLL_PREDIV_S 14 +#define GSWPLL_PREDIV_M 0xc000 +#define GSWPLL_POSTDIV_200M_S 12 +#define GSWPLL_POSTDIV_200M_M 0x3000 +#define GSWPLL_EN_PRE BIT(11) +#define GSWPLL_FBKSEL BIT(10) +#define GSWPLL_BP BIT(9) +#define GSWPLL_BR BIT(8) +#define GSWPLL_FBKDIV_200M_S 0 +#define GSWPLL_FBKDIV_200M_M 0xff + +#define CORE_GSWPLL_GCR_2 0x040e +#define GSWPLL_POSTDIV_500M_S 8 +#define GSWPLL_POSTDIV_500M_M 0x300 +#define GSWPLL_FBKDIV_500M_S 0 +#define GSWPLL_FBKDIV_500M_M 0xff + +#define TRGMII_GSW_CLK_CG 0x0410 +#define TRGMIICK_EN BIT(1) +#define GSWCK_EN BIT(0) + +static int mt7530_mii_read(struct gsw_mt753x *gsw, int phy, int reg) +{ + if (phy < MT753X_NUM_PHYS) + phy = (gsw->phy_base + phy) & MT753X_SMI_ADDR_MASK; + + return mdiobus_read(gsw->host_bus, phy, reg); +} + +static void mt7530_mii_write(struct gsw_mt753x *gsw, int phy, int reg, u16 val) +{ + if (phy < MT753X_NUM_PHYS) + phy = (gsw->phy_base + phy) & MT753X_SMI_ADDR_MASK; + + mdiobus_write(gsw->host_bus, phy, reg, val); +} + +static int mt7530_mmd_read(struct gsw_mt753x *gsw, int addr, int devad, u16 reg) +{ + u16 val; + + if (addr < MT753X_NUM_PHYS) + addr = (gsw->phy_base + addr) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->host_bus->mdio_lock); + + gsw->host_bus->write(gsw->host_bus, addr, MII_MMD_ACC_CTL_REG, + (MMD_ADDR << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M)); + + gsw->host_bus->write(gsw->host_bus, addr, MII_MMD_ADDR_DATA_REG, reg); + + gsw->host_bus->write(gsw->host_bus, addr, MII_MMD_ACC_CTL_REG, + (MMD_DATA << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M)); + + val = gsw->host_bus->read(gsw->host_bus, addr, MII_MMD_ADDR_DATA_REG); + + mutex_unlock(&gsw->host_bus->mdio_lock); + + return val; +} + +static void mt7530_mmd_write(struct gsw_mt753x *gsw, int addr, int devad, + u16 reg, u16 val) +{ + if (addr < MT753X_NUM_PHYS) + addr = (gsw->phy_base + addr) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->host_bus->mdio_lock); + + gsw->host_bus->write(gsw->host_bus, addr, MII_MMD_ACC_CTL_REG, + (MMD_ADDR << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M)); + + gsw->host_bus->write(gsw->host_bus, addr, MII_MMD_ADDR_DATA_REG, reg); + + gsw->host_bus->write(gsw->host_bus, addr, MII_MMD_ACC_CTL_REG, + (MMD_DATA << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M)); + + gsw->host_bus->write(gsw->host_bus, addr, MII_MMD_ADDR_DATA_REG, val); + + mutex_unlock(&gsw->host_bus->mdio_lock); +} + +static void mt7530_core_reg_write(struct gsw_mt753x *gsw, u32 reg, u32 val) +{ + gsw->mmd_write(gsw, 0, 0x1f, reg, val); +} + +static int mt7530_mac_port_setup(struct gsw_mt753x *gsw) +{ + u32 hwstrap, p6ecr = 0, p5mcr, p6mcr, phyad; + + hwstrap = mt753x_reg_read(gsw, HWSTRAP); + hwstrap &= ~(P6_INTF_DIS | P5_INTF_MODE_RGMII | P5_INTF_DIS_S); + hwstrap |= CHG_TRAP | P5_INTF_SEL_GMAC5; + + if (gsw->direct_phy_access) + hwstrap &= ~C_MDIO_BPS_S; + else + hwstrap |= C_MDIO_BPS_S; + + if (!gsw->port5_cfg.enabled) { + p5mcr = FORCE_MODE; + hwstrap |= P5_INTF_DIS_S; + } else { + p5mcr = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) | + MAC_MODE | MAC_TX_EN | MAC_RX_EN | + BKOFF_EN | BACKPR_EN; + + if (gsw->port5_cfg.force_link) { + p5mcr |= FORCE_MODE | FORCE_LINK | FORCE_RX_FC | + FORCE_TX_FC; + p5mcr |= gsw->port5_cfg.speed << FORCE_SPD_S; + + if (gsw->port5_cfg.duplex) + p5mcr |= FORCE_DPX; + } + + switch (gsw->port5_cfg.phy_mode) { + case PHY_INTERFACE_MODE_MII: + case PHY_INTERFACE_MODE_GMII: + break; + case PHY_INTERFACE_MODE_RGMII: + hwstrap |= P5_INTF_MODE_RGMII; + break; + default: + dev_info(gsw->dev, "%s is not supported by port5\n", + phy_modes(gsw->port5_cfg.phy_mode)); + p5mcr = FORCE_MODE; + hwstrap |= P5_INTF_DIS_S; + } + + /* Port5 to PHY direct mode */ + if (of_property_read_u32(gsw->port5_cfg.np, "phy-address", + &phyad)) + goto parse_p6; + + if (phyad != 0 && phyad != 4) { + dev_info(gsw->dev, + "Only PHY 0/4 can be connected to Port 5\n"); + goto parse_p6; + } + + hwstrap &= ~P5_INTF_SEL_GMAC5; + if (phyad == 0) + hwstrap |= P5_PHY0_SEL; + else + hwstrap &= ~P5_PHY0_SEL; + } + +parse_p6: + if (!gsw->port6_cfg.enabled) { + p6mcr = FORCE_MODE; + hwstrap |= P6_INTF_DIS; + } else { + p6mcr = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) | + MAC_MODE | MAC_TX_EN | MAC_RX_EN | + BKOFF_EN | BACKPR_EN; + + if (gsw->port6_cfg.force_link) { + p6mcr |= FORCE_MODE | FORCE_LINK | FORCE_RX_FC | + FORCE_TX_FC; + p6mcr |= gsw->port6_cfg.speed << FORCE_SPD_S; + + if (gsw->port6_cfg.duplex) + p6mcr |= FORCE_DPX; + } + + switch (gsw->port6_cfg.phy_mode) { + case PHY_INTERFACE_MODE_RGMII: + break; + case PHY_INTERFACE_MODE_TRGMII: + /* set MT7530 central align */ + p6ecr = BIT(1); /* TODO: confirm this */ + break; + default: + dev_info(gsw->dev, "%s is not supported by port6\n", + phy_modes(gsw->port6_cfg.phy_mode)); + p6mcr = FORCE_MODE; + hwstrap |= P6_INTF_DIS; + } + } + + mt753x_reg_write(gsw, MHWSTRAP, hwstrap); + mt753x_reg_write(gsw, P6ECR, p6ecr); + + mt753x_reg_write(gsw, PMCR(5), p5mcr); + mt753x_reg_write(gsw, PMCR(6), p6mcr); + + return 0; +} + +static void mt7530_core_pll_setup(struct gsw_mt753x *gsw) +{ + u32 hwstrap, val, ncpo1, ssc_delta; + int i; + + hwstrap = mt753x_reg_read(gsw, HWSTRAP); + + switch ((hwstrap & XTAL_FSEL_M) >> XTAL_FSEL_S) { + case XTAL_40MHZ: + /* Disable MT7530 core clock */ + mt7530_core_reg_write(gsw, TRGMII_GSW_CLK_CG, 0); + + /* disable MT7530 PLL */ + mt7530_core_reg_write(gsw, CORE_GSWPLL_GCR_1, + (2 << GSWPLL_POSTDIV_200M_S) | + (32 << GSWPLL_FBKDIV_200M_S)); + + /* For MT7530 core clock = 500Mhz */ + mt7530_core_reg_write(gsw, CORE_GSWPLL_GCR_2, + (1 << GSWPLL_POSTDIV_500M_S) | + (25 << GSWPLL_FBKDIV_500M_S)); + + /* Enable MT7530 PLL */ + mt7530_core_reg_write(gsw, CORE_GSWPLL_GCR_1, + (2 << GSWPLL_POSTDIV_200M_S) | + (32 << GSWPLL_FBKDIV_200M_S) | + GSWPLL_EN_PRE); + + usleep_range(20, 40); + + /* Enable MT7530 core clock */ + mt7530_core_reg_write(gsw, TRGMII_GSW_CLK_CG, GSWCK_EN); + break; + default: + /* TODO: PLL settings for 20/25MHz */ + break; + } + + if (gsw->port6_cfg.enabled && + gsw->port6_cfg.phy_mode == PHY_INTERFACE_MODE_TRGMII) { + ncpo1 = 0x1400; + ssc_delta = 0x57; + } else { + /* RGMII */ + ncpo1 = 0x0c80; + ssc_delta = 0x87; + } + + /* Setup the MT7530 TRGMII Tx Clock */ + mt7530_core_reg_write(gsw, CORE_PLL_GROUP5, ncpo1); + mt7530_core_reg_write(gsw, CORE_PLL_GROUP6, 0); + mt7530_core_reg_write(gsw, CORE_PLL_GROUP10, ssc_delta); + mt7530_core_reg_write(gsw, CORE_PLL_GROUP11, ssc_delta); + mt7530_core_reg_write(gsw, CORE_PLL_GROUP4, + RG_SYSPLL_DDSFBK_EN | + RG_SYSPLL_BIAS_EN | RG_SYSPLL_BIAS_LPF_EN); + + mt7530_core_reg_write(gsw, CORE_PLL_GROUP2, + RG_SYSPLL_EN_NORMAL | RG_SYSPLL_VODEN | + (1 << RG_SYSPLL_POSDIV_S)); + + mt7530_core_reg_write(gsw, CORE_PLL_GROUP7, + RG_LCDDS_PCW_NCPO_CHG | (3 << RG_LCCDS_C_S) | + RG_LCDDS_PWDB | RG_LCDDS_ISO_EN); + + /* Enable MT7530 TRGMII clock */ + mt7530_core_reg_write(gsw, TRGMII_GSW_CLK_CG, GSWCK_EN | TRGMIICK_EN); + + val = mt753x_reg_read(gsw, TRGMII_TXCTRL); + val &= ~TXC_INV; + mt753x_reg_write(gsw, TRGMII_TXCTRL, val); + + /* lower Tx Driving */ + for (i = 0 ; i < NUM_TRGMII_ODT; i++) + mt753x_reg_write(gsw, TRGMII_TD_ODT(i), + (8 << TX_DM_DRVP_S) | (8 << TX_DM_DRVN_S)); + + mt753x_reg_write(gsw, TRGMII_TCK_CTRL, + (8 << TX_TAP_S) | (0x55 << TX_TRAIN_WD_S)); + + /* delay setting for 10/1000M */ + mt753x_reg_write(gsw, P5RGMIIRXCR, + CSR_RGMII_EDGE_ALIGN | + (2 << CSR_RGMII_RXC_0DEG_CFG_S)); + mt753x_reg_write(gsw, P5RGMIITXCR, 0x14 << CSR_RGMII_TXC_CFG_S); +} + +static int mt7530_sw_detect(struct gsw_mt753x *gsw, struct chip_rev *crev) +{ + u32 rev; + + rev = mt753x_reg_read(gsw, CHIP_REV); + + if (((rev & CHIP_NAME_M) >> CHIP_NAME_S) == MT7530) { + if (crev) { + crev->rev = rev & CHIP_REV_M; + crev->name = "MT7530"; + } + + return 0; + } + + return -ENODEV; +} + +static void mt7530_phy_setting(struct gsw_mt753x *gsw) +{ + int i; + u32 val; + + for (i = 0; i < MT753X_NUM_PHYS; i++) { + /* Disable EEE */ + gsw->mmd_write(gsw, i, PHY_DEV07, PHY_DEV07_REG_03C, 0); + + /* Enable HW auto downshift */ + gsw->mii_write(gsw, i, 0x1f, 0x1); + val = gsw->mii_read(gsw, i, PHY_EXT_REG_14); + val |= PHY_EN_DOWN_SHFIT; + gsw->mii_write(gsw, i, PHY_EXT_REG_14, val); + + /* Increase SlvDPSready time */ + gsw->mii_write(gsw, i, 0x1f, 0x52b5); + gsw->mii_write(gsw, i, PHY_TR_REG_10, 0xafae); + gsw->mii_write(gsw, i, PHY_TR_REG_12, 0x2f); + gsw->mii_write(gsw, i, PHY_TR_REG_10, 0x8fae); + + /* Increase post_update_timer */ + gsw->mii_write(gsw, i, 0x1f, 0x3); + gsw->mii_write(gsw, i, PHY_LPI_REG_11, 0x4b); + gsw->mii_write(gsw, i, 0x1f, 0); + + /* Adjust 100_mse_threshold */ + gsw->mmd_write(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_123, 0xffff); + + /* Disable mcc */ + gsw->mmd_write(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_A6, 0x300); + } +} + +static int mt7530_sw_init(struct gsw_mt753x *gsw) +{ + int i; + u32 val; + + gsw->direct_phy_access = of_property_read_bool(gsw->dev->of_node, + "mt7530,direct-phy-access"); + + /* Force MT7530 to use (in)direct PHY access */ + val = mt753x_reg_read(gsw, HWSTRAP); + val |= CHG_TRAP; + if (gsw->direct_phy_access) + val &= ~C_MDIO_BPS_S; + else + val |= C_MDIO_BPS_S; + mt753x_reg_write(gsw, MHWSTRAP, val); + + /* Read PHY address base from HWSTRAP */ + gsw->phy_base = (((val & SMI_ADDR_M) >> SMI_ADDR_S) << 3) + 8; + gsw->phy_base &= MT753X_SMI_ADDR_MASK; + + if (gsw->direct_phy_access) { + gsw->mii_read = mt7530_mii_read; + gsw->mii_write = mt7530_mii_write; + gsw->mmd_read = mt7530_mmd_read; + gsw->mmd_write = mt7530_mmd_write; + } else { + gsw->mii_read = mt753x_mii_read; + gsw->mii_write = mt753x_mii_write; + gsw->mmd_read = mt753x_mmd_ind_read; + gsw->mmd_write = mt753x_mmd_ind_write; + } + + for (i = 0; i < MT753X_NUM_PHYS; i++) { + val = gsw->mii_read(gsw, i, MII_BMCR); + val |= BMCR_PDOWN; + gsw->mii_write(gsw, i, MII_BMCR, val); + } + + /* Force MAC link down before reset */ + mt753x_reg_write(gsw, PMCR(5), FORCE_MODE); + mt753x_reg_write(gsw, PMCR(6), FORCE_MODE); + + /* Switch soft reset */ + /* BUG: sw reset causes gsw int flooding */ + mt753x_reg_write(gsw, SYS_CTRL, SW_PHY_RST | SW_SYS_RST | SW_REG_RST); + usleep_range(10, 20); + + /* global mac control settings configuration */ + mt753x_reg_write(gsw, GMACCR, + LATE_COL_DROP | (15 << MTCC_LMT_S) | + (2 << MAX_RX_JUMBO_S) | RX_PKT_LEN_MAX_JUMBO); + + mt7530_core_pll_setup(gsw); + mt7530_mac_port_setup(gsw); + + return 0; +} + +static int mt7530_sw_post_init(struct gsw_mt753x *gsw) +{ + int i; + u32 val; + + mt7530_phy_setting(gsw); + + for (i = 0; i < MT753X_NUM_PHYS; i++) { + val = gsw->mii_read(gsw, i, MII_BMCR); + val &= ~BMCR_PDOWN; + gsw->mii_write(gsw, i, MII_BMCR, val); + } + + return 0; +} + +struct mt753x_sw_id mt7530_id = { + .model = MT7530, + .detect = mt7530_sw_detect, + .init = mt7530_sw_init, + .post_init = mt7530_sw_post_init +}; diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.h b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.h new file mode 100644 index 0000000000..b4c8a02861 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7530.h @@ -0,0 +1,14 @@ +/* + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _MT7530_H_ +#define _MT7530_H_ + +#include "mt753x.h" + +extern struct mt753x_sw_id mt7530_id; + +#endif /* _MT7530_H_ */ diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.c b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.c new file mode 100644 index 0000000000..4d44141a61 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.c @@ -0,0 +1,851 @@ +/* + * Driver for MediaTek MT7531 gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Zhanguo Ju + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +#include "mt753x.h" +#include "mt753x_regs.h" + +/* MT7531 registers */ +#define SGMII_REG_BASE 0x5000 +#define SGMII_REG_PORT_BASE 0x1000 +#define SGMII_REG(p, r) (SGMII_REG_BASE + \ + (p) * SGMII_REG_PORT_BASE + (r)) +#define PCS_CONTROL_1(p) SGMII_REG(p, 0x00) +#define SGMII_MODE(p) SGMII_REG(p, 0x20) +#define QPHY_PWR_STATE_CTRL(p) SGMII_REG(p, 0xe8) +#define PHYA_CTRL_SIGNAL3(p) SGMII_REG(p, 0x128) + +/* Fields of PCS_CONTROL_1 */ +#define SGMII_LINK_STATUS BIT(18) +#define SGMII_AN_ENABLE BIT(12) +#define SGMII_AN_RESTART BIT(9) + +/* Fields of SGMII_MODE */ +#define SGMII_REMOTE_FAULT_DIS BIT(8) +#define SGMII_IF_MODE_FORCE_DUPLEX BIT(4) +#define SGMII_IF_MODE_FORCE_SPEED_S 0x2 +#define SGMII_IF_MODE_FORCE_SPEED_M 0x0c +#define SGMII_IF_MODE_ADVERT_AN BIT(1) + +/* Values of SGMII_IF_MODE_FORCE_SPEED */ +#define SGMII_IF_MODE_FORCE_SPEED_10 0 +#define SGMII_IF_MODE_FORCE_SPEED_100 1 +#define SGMII_IF_MODE_FORCE_SPEED_1000 2 + +/* Fields of QPHY_PWR_STATE_CTRL */ +#define PHYA_PWD BIT(4) + +/* Fields of PHYA_CTRL_SIGNAL3 */ +#define RG_TPHY_SPEED_S 2 +#define RG_TPHY_SPEED_M 0x0c + +/* Values of RG_TPHY_SPEED */ +#define RG_TPHY_SPEED_1000 0 +#define RG_TPHY_SPEED_2500 1 + +/* Unique fields of (M)HWSTRAP for MT7531 */ +#define XTAL_FSEL_S 7 +#define XTAL_FSEL_M BIT(7) +#define PHY_EN BIT(6) +#define CHG_STRAP BIT(8) + +/* Efuse Register Define */ +#define GBE_EFUSE 0x7bc8 +#define GBE_SEL_EFUSE_EN BIT(0) + +/* PHY ENABLE Register bitmap define */ +#define PHY_DEV1F 0x1f +#define PHY_DEV1F_REG_44 0x44 +#define PHY_DEV1F_REG_268 0x268 +#define PHY_DEV1F_REG_269 0x269 +#define PHY_DEV1F_REG_403 0x403 + +/* Fields of PHY_DEV1F_REG_403 */ +#define GBE_EFUSE_SETTING BIT(3) +#define PHY_EN_BYPASS_MODE BIT(4) +#define POWER_ON_OFF BIT(5) + +/* PHY EEE Register bitmap of define */ +#define PHY_DEV07 0x07 +#define PHY_DEV07_REG_03C 0x3c + +/* PHY Extend Register 0x14 bitmap of define */ +#define PHY_EXT_REG_14 0x14 + +/* Fields of PHY_EXT_REG_14 */ +#define PHY_EN_DOWN_SHFIT BIT(4) + +/* PHY Extend Register 0x17 bitmap of define */ +#define PHY_EXT_REG_17 0x17 + +/* Fields of PHY_EXT_REG_17 */ +#define PHY_LINKDOWN_POWER_SAVING_EN BIT(4) + +/* PHY Token Ring Register 0x10 bitmap of define */ +#define PHY_TR_REG_10 0x10 + +/* PHY Token Ring Register 0x12 bitmap of define */ +#define PHY_TR_REG_12 0x12 + +/* PHY DEV 0x1e Register bitmap of define */ +#define PHY_DEV1E 0x1e +#define PHY_DEV1E_REG_13 0x13 +#define PHY_DEV1E_REG_14 0x14 +#define PHY_DEV1E_REG_41 0x41 +#define PHY_DEV1E_REG_A6 0xa6 +#define PHY_DEV1E_REG_0C6 0x0c6 +#define PHY_DEV1E_REG_0FE 0x0fe +#define PHY_DEV1E_REG_123 0x123 +#define PHY_DEV1E_REG_189 0x189 + +/* Fields of PHY_DEV1E_REG_0C6 */ +#define PHY_POWER_SAVING_S 8 +#define PHY_POWER_SAVING_M 0x300 +#define PHY_POWER_SAVING_TX 0x0 + +/* Fields of PHY_DEV1E_REG_189 */ +#define DESCRAMBLER_CLEAR_EN 0x1 + +/* Values of XTAL_FSEL_S */ +#define XTAL_40MHZ 0 +#define XTAL_25MHZ 1 + +#define PLLGP_EN 0x7820 +#define EN_COREPLL BIT(2) +#define SW_CLKSW BIT(1) +#define SW_PLLGP BIT(0) + +#define PLLGP_CR0 0x78a8 +#define RG_COREPLL_EN BIT(22) +#define RG_COREPLL_POSDIV_S 23 +#define RG_COREPLL_POSDIV_M 0x3800000 +#define RG_COREPLL_SDM_PCW_S 1 +#define RG_COREPLL_SDM_PCW_M 0x3ffffe +#define RG_COREPLL_SDM_PCW_CHG BIT(0) + +/* TOP Signals Status Register */ +#define TOP_SIG_SR 0x780c +#define PAD_DUAL_SGMII_EN BIT(1) + +/* RGMII and SGMII PLL clock */ +#define ANA_PLLGP_CR2 0x78b0 +#define ANA_PLLGP_CR5 0x78bc + +/* GPIO mode define */ +#define GPIO_MODE_REGS(x) (0x7c0c + ((x / 8) * 4)) +#define GPIO_MODE_S 4 + +/* GPIO GROUP IOLB SMT0 Control */ +#define SMT0_IOLB 0x7f04 +#define SMT_IOLB_5_SMI_MDC_EN BIT(5) + +/* Unique fields of PMCR for MT7531 */ +#define FORCE_MODE_EEE1G BIT(25) +#define FORCE_MODE_EEE100 BIT(26) +#define FORCE_MODE_TX_FC BIT(27) +#define FORCE_MODE_RX_FC BIT(28) +#define FORCE_MODE_DPX BIT(29) +#define FORCE_MODE_SPD BIT(30) +#define FORCE_MODE_LNK BIT(31) +#define FORCE_MODE BIT(15) + +#define CHIP_REV 0x781C +#define CHIP_NAME_S 16 +#define CHIP_NAME_M 0xffff0000 +#define CHIP_REV_S 0 +#define CHIP_REV_M 0x0f +#define CHIP_REV_E1 0x0 + +#define CLKGEN_CTRL 0x7500 +#define CLK_SKEW_OUT_S 8 +#define CLK_SKEW_OUT_M 0x300 +#define CLK_SKEW_IN_S 6 +#define CLK_SKEW_IN_M 0xc0 +#define RXCLK_NO_DELAY BIT(5) +#define TXCLK_NO_REVERSE BIT(4) +#define GP_MODE_S 1 +#define GP_MODE_M 0x06 +#define GP_CLK_EN BIT(0) + +/* Values of GP_MODE */ +#define GP_MODE_RGMII 0 +#define GP_MODE_MII 1 +#define GP_MODE_REV_MII 2 + +/* Values of CLK_SKEW_IN */ +#define CLK_SKEW_IN_NO_CHANGE 0 +#define CLK_SKEW_IN_DELAY_100PPS 1 +#define CLK_SKEW_IN_DELAY_200PPS 2 +#define CLK_SKEW_IN_REVERSE 3 + +/* Values of CLK_SKEW_OUT */ +#define CLK_SKEW_OUT_NO_CHANGE 0 +#define CLK_SKEW_OUT_DELAY_100PPS 1 +#define CLK_SKEW_OUT_DELAY_200PPS 2 +#define CLK_SKEW_OUT_REVERSE 3 + +/* Proprietory Control Register of Internal Phy device 0x1e */ +#define RXADC_CONTROL_3 0xc2 +#define RXADC_LDO_CONTROL_2 0xd3 + +/* Proprietory Control Register of Internal Phy device 0x1f */ +#define TXVLD_DA_271 0x271 +#define TXVLD_DA_272 0x272 +#define TXVLD_DA_273 0x273 + +/* DSP Channel and NOD_ADDR*/ +#define DSP_CH 0x2 +#define DSP_NOD_ADDR 0xD + +/* gpio pinmux pins and functions define */ +static int gpio_int_pins[] = {0}; +static int gpio_int_funcs[] = {1}; +static int gpio_mdc_pins[] = {11, 20}; +static int gpio_mdc_funcs[] = {2, 2}; +static int gpio_mdio_pins[] = {12, 21}; +static int gpio_mdio_funcs[] = {2, 2}; + +static int mt7531_set_port_sgmii_force_mode(struct gsw_mt753x *gsw, u32 port, + struct mt753x_port_cfg *port_cfg) +{ + u32 speed, port_base, val; + ktime_t timeout; + u32 timeout_us; + + if (port < 5 || port >= MT753X_NUM_PORTS) { + dev_info(gsw->dev, "port %d is not a SGMII port\n", port); + return -EINVAL; + } + + port_base = port - 5; + + switch (port_cfg->speed) { + case MAC_SPD_1000: + speed = RG_TPHY_SPEED_1000; + break; + case MAC_SPD_2500: + speed = RG_TPHY_SPEED_2500; + break; + default: + dev_info(gsw->dev, "invalid SGMII speed idx %d for port %d\n", + port_cfg->speed, port); + + speed = RG_TPHY_SPEED_1000; + } + + /* Step 1: Speed select register setting */ + val = mt753x_reg_read(gsw, PHYA_CTRL_SIGNAL3(port_base)); + val &= ~RG_TPHY_SPEED_M; + val |= speed << RG_TPHY_SPEED_S; + mt753x_reg_write(gsw, PHYA_CTRL_SIGNAL3(port_base), val); + + /* Step 2 : Disable AN */ + val = mt753x_reg_read(gsw, PCS_CONTROL_1(port_base)); + val &= ~SGMII_AN_ENABLE; + mt753x_reg_write(gsw, PCS_CONTROL_1(port_base), val); + + /* Step 3: SGMII force mode setting */ + val = mt753x_reg_read(gsw, SGMII_MODE(port_base)); + val &= ~SGMII_IF_MODE_ADVERT_AN; + val &= ~SGMII_IF_MODE_FORCE_SPEED_M; + val |= SGMII_IF_MODE_FORCE_SPEED_1000 << SGMII_IF_MODE_FORCE_SPEED_S; + val |= SGMII_IF_MODE_FORCE_DUPLEX; + /* For sgmii force mode, 0 is full duplex and 1 is half duplex */ + if (port_cfg->duplex) + val &= ~SGMII_IF_MODE_FORCE_DUPLEX; + + mt753x_reg_write(gsw, SGMII_MODE(port_base), val); + + /* Step 4: XXX: Disable Link partner's AN and set force mode */ + + /* Step 5: XXX: Special setting for PHYA ==> reserved for flexible */ + + /* Step 6 : Release PHYA power down state */ + val = mt753x_reg_read(gsw, QPHY_PWR_STATE_CTRL(port_base)); + val &= ~PHYA_PWD; + mt753x_reg_write(gsw, QPHY_PWR_STATE_CTRL(port_base), val); + + /* Step 7 : Polling SGMII_LINK_STATUS */ + timeout_us = 2000000; + timeout = ktime_add_us(ktime_get(), timeout_us); + while (1) { + val = mt753x_reg_read(gsw, PCS_CONTROL_1(port_base)); + val &= SGMII_LINK_STATUS; + + if (val) + break; + + if (ktime_compare(ktime_get(), timeout) > 0) + return -ETIMEDOUT; + } + + return 0; +} + +static int mt7531_set_port_sgmii_an_mode(struct gsw_mt753x *gsw, u32 port, + struct mt753x_port_cfg *port_cfg) +{ + u32 speed, port_base, val; + ktime_t timeout; + u32 timeout_us; + + if (port < 5 || port >= MT753X_NUM_PORTS) { + dev_info(gsw->dev, "port %d is not a SGMII port\n", port); + return -EINVAL; + } + + port_base = port - 5; + + switch (port_cfg->speed) { + case MAC_SPD_1000: + speed = RG_TPHY_SPEED_1000; + break; + case MAC_SPD_2500: + speed = RG_TPHY_SPEED_2500; + break; + default: + dev_info(gsw->dev, "invalid SGMII speed idx %d for port %d\n", + port_cfg->speed, port); + + speed = RG_TPHY_SPEED_1000; + } + + /* Step 1: Speed select register setting */ + val = mt753x_reg_read(gsw, PHYA_CTRL_SIGNAL3(port_base)); + val &= ~RG_TPHY_SPEED_M; + val |= speed << RG_TPHY_SPEED_S; + mt753x_reg_write(gsw, PHYA_CTRL_SIGNAL3(port_base), val); + + /* Step 2: Remote fault disable */ + val = mt753x_reg_read(gsw, SGMII_MODE(port)); + val |= SGMII_REMOTE_FAULT_DIS; + mt753x_reg_write(gsw, SGMII_MODE(port), val); + + /* Step 3: Setting Link partner's AN enable = 1 */ + + /* Step 4: Setting Link partner's device ability for speed/duplex */ + + /* Step 5: AN re-start */ + val = mt753x_reg_read(gsw, PCS_CONTROL_1(port)); + val |= SGMII_AN_RESTART; + mt753x_reg_write(gsw, PCS_CONTROL_1(port), val); + + /* Step 6: Special setting for PHYA ==> reserved for flexible */ + + /* Step 7 : Polling SGMII_LINK_STATUS */ + timeout_us = 2000000; + timeout = ktime_add_us(ktime_get(), timeout_us); + while (1) { + val = mt753x_reg_read(gsw, PCS_CONTROL_1(port_base)); + val &= SGMII_LINK_STATUS; + + if (val) + break; + + if (ktime_compare(ktime_get(), timeout) > 0) + return -ETIMEDOUT; + } + + return 0; +} + +static int mt7531_set_port_rgmii(struct gsw_mt753x *gsw, u32 port) +{ + u32 val; + + if (port != 5) { + dev_info(gsw->dev, "RGMII mode is not available for port %d\n", + port); + return -EINVAL; + } + + val = mt753x_reg_read(gsw, CLKGEN_CTRL); + val |= GP_CLK_EN; + val &= ~GP_MODE_M; + val |= GP_MODE_RGMII << GP_MODE_S; + val |= TXCLK_NO_REVERSE; + val |= RXCLK_NO_DELAY; + val &= ~CLK_SKEW_IN_M; + val |= CLK_SKEW_IN_NO_CHANGE << CLK_SKEW_IN_S; + val &= ~CLK_SKEW_OUT_M; + val |= CLK_SKEW_OUT_NO_CHANGE << CLK_SKEW_OUT_S; + mt753x_reg_write(gsw, CLKGEN_CTRL, val); + + return 0; +} + +static int mt7531_mac_port_setup(struct gsw_mt753x *gsw, u32 port, + struct mt753x_port_cfg *port_cfg) +{ + u32 pmcr; + u32 speed; + + if (port < 5 || port >= MT753X_NUM_PORTS) { + dev_info(gsw->dev, "port %d is not a MAC port\n", port); + return -EINVAL; + } + + if (port_cfg->enabled) { + pmcr = (IPG_96BIT_WITH_SHORT_IPG << IPG_CFG_S) | + MAC_MODE | MAC_TX_EN | MAC_RX_EN | + BKOFF_EN | BACKPR_EN; + + if (port_cfg->force_link) { + /* PMCR's speed field 0x11 is reserved, + * sw should set 0x10 + */ + speed = port_cfg->speed; + if (port_cfg->speed == MAC_SPD_2500) + speed = MAC_SPD_1000; + + pmcr |= FORCE_MODE_LNK | FORCE_LINK | + FORCE_MODE_SPD | FORCE_MODE_DPX | + FORCE_MODE_RX_FC | FORCE_MODE_TX_FC | + FORCE_RX_FC | FORCE_TX_FC | + (speed << FORCE_SPD_S); + + if (port_cfg->duplex) + pmcr |= FORCE_DPX; + } + } else { + pmcr = FORCE_MODE_LNK; + } + + switch (port_cfg->phy_mode) { + case PHY_INTERFACE_MODE_RGMII: + mt7531_set_port_rgmii(gsw, port); + break; + case PHY_INTERFACE_MODE_SGMII: + if (port_cfg->force_link) + mt7531_set_port_sgmii_force_mode(gsw, port, port_cfg); + else + mt7531_set_port_sgmii_an_mode(gsw, port, port_cfg); + break; + default: + if (port_cfg->enabled) + dev_info(gsw->dev, "%s is not supported by port %d\n", + phy_modes(port_cfg->phy_mode), port); + + pmcr = FORCE_MODE_LNK; + } + + mt753x_reg_write(gsw, PMCR(port), pmcr); + + return 0; +} + +static void mt7531_core_pll_setup(struct gsw_mt753x *gsw) +{ + u32 hwstrap; + u32 val; + + val = mt753x_reg_read(gsw, TOP_SIG_SR); + if (val & PAD_DUAL_SGMII_EN) + return; + + hwstrap = mt753x_reg_read(gsw, HWSTRAP); + + switch ((hwstrap & XTAL_FSEL_M) >> XTAL_FSEL_S) { + case XTAL_25MHZ: + /* Step 1 : Disable MT7531 COREPLL */ + val = mt753x_reg_read(gsw, PLLGP_EN); + val &= ~EN_COREPLL; + mt753x_reg_write(gsw, PLLGP_EN, val); + + /* Step 2: switch to XTAL output */ + val = mt753x_reg_read(gsw, PLLGP_EN); + val |= SW_CLKSW; + mt753x_reg_write(gsw, PLLGP_EN, val); + + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_EN; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + /* Step 3: disable PLLGP and enable program PLLGP */ + val = mt753x_reg_read(gsw, PLLGP_EN); + val |= SW_PLLGP; + mt753x_reg_write(gsw, PLLGP_EN, val); + + /* Step 4: program COREPLL output frequency to 500MHz */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_POSDIV_M; + val |= 2 << RG_COREPLL_POSDIV_S; + mt753x_reg_write(gsw, PLLGP_CR0, val); + usleep_range(25, 35); + + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_SDM_PCW_M; + val |= 0x140000 << RG_COREPLL_SDM_PCW_S; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + /* Set feedback divide ratio update signal to high */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val |= RG_COREPLL_SDM_PCW_CHG; + mt753x_reg_write(gsw, PLLGP_CR0, val); + /* Wait for at least 16 XTAL clocks */ + usleep_range(10, 20); + + /* Step 5: set feedback divide ratio update signal to low */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_SDM_PCW_CHG; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + /* Enable 325M clock for SGMII */ + mt753x_reg_write(gsw, ANA_PLLGP_CR5, 0xad0000); + + /* Enable 250SSC clock for RGMII */ + mt753x_reg_write(gsw, ANA_PLLGP_CR2, 0x4f40000); + + /* Step 6: Enable MT7531 PLL */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val |= RG_COREPLL_EN; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + val = mt753x_reg_read(gsw, PLLGP_EN); + val |= EN_COREPLL; + mt753x_reg_write(gsw, PLLGP_EN, val); + usleep_range(25, 35); + + break; + case XTAL_40MHZ: + /* Step 1 : Disable MT7531 COREPLL */ + val = mt753x_reg_read(gsw, PLLGP_EN); + val &= ~EN_COREPLL; + mt753x_reg_write(gsw, PLLGP_EN, val); + + /* Step 2: switch to XTAL output */ + val = mt753x_reg_read(gsw, PLLGP_EN); + val |= SW_CLKSW; + mt753x_reg_write(gsw, PLLGP_EN, val); + + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_EN; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + /* Step 3: disable PLLGP and enable program PLLGP */ + val = mt753x_reg_read(gsw, PLLGP_EN); + val |= SW_PLLGP; + mt753x_reg_write(gsw, PLLGP_EN, val); + + /* Step 4: program COREPLL output frequency to 500MHz */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_POSDIV_M; + val |= 2 << RG_COREPLL_POSDIV_S; + mt753x_reg_write(gsw, PLLGP_CR0, val); + usleep_range(25, 35); + + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_SDM_PCW_M; + val |= 0x190000 << RG_COREPLL_SDM_PCW_S; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + /* Set feedback divide ratio update signal to high */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val |= RG_COREPLL_SDM_PCW_CHG; + mt753x_reg_write(gsw, PLLGP_CR0, val); + /* Wait for at least 16 XTAL clocks */ + usleep_range(10, 20); + + /* Step 5: set feedback divide ratio update signal to low */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val &= ~RG_COREPLL_SDM_PCW_CHG; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + /* Enable 325M clock for SGMII */ + mt753x_reg_write(gsw, ANA_PLLGP_CR5, 0xad0000); + + /* Enable 250SSC clock for RGMII */ + mt753x_reg_write(gsw, ANA_PLLGP_CR2, 0x4f40000); + + /* Step 6: Enable MT7531 PLL */ + val = mt753x_reg_read(gsw, PLLGP_CR0); + val |= RG_COREPLL_EN; + mt753x_reg_write(gsw, PLLGP_CR0, val); + + val = mt753x_reg_read(gsw, PLLGP_EN); + val |= EN_COREPLL; + mt753x_reg_write(gsw, PLLGP_EN, val); + usleep_range(25, 35); + break; + } +} + +static int mt7531_internal_phy_calibration(struct gsw_mt753x *gsw) +{ + return 0; +} + +static int mt7531_sw_detect(struct gsw_mt753x *gsw, struct chip_rev *crev) +{ + u32 rev, topsig; + + rev = mt753x_reg_read(gsw, CHIP_REV); + + if (((rev & CHIP_NAME_M) >> CHIP_NAME_S) == MT7531) { + if (crev) { + topsig = mt753x_reg_read(gsw, TOP_SIG_SR); + + crev->rev = rev & CHIP_REV_M; + crev->name = topsig & PAD_DUAL_SGMII_EN ? + "MT7531AE" : "MT7531BE"; + } + + return 0; + } + + return -ENODEV; +} + +static void pinmux_set_mux_7531(struct gsw_mt753x *gsw, u32 pin, u32 mode) +{ + u32 val; + + val = mt753x_reg_read(gsw, GPIO_MODE_REGS(pin)); + val &= ~(0xf << (pin & 7) * GPIO_MODE_S); + val |= mode << (pin & 7) * GPIO_MODE_S; + mt753x_reg_write(gsw, GPIO_MODE_REGS(pin), val); +} + +static int mt7531_set_gpio_pinmux(struct gsw_mt753x *gsw) +{ + u32 group = 0; + struct device_node *np = gsw->dev->of_node; + + /* Set GPIO 0 interrupt mode */ + pinmux_set_mux_7531(gsw, gpio_int_pins[0], gpio_int_funcs[0]); + + of_property_read_u32(np, "mediatek,mdio_master_pinmux", &group); + + /* group = 0: do nothing, 1: 1st group (AE), 2: 2nd group (BE) */ + if (group > 0 && group <= 2) { + group--; + pinmux_set_mux_7531(gsw, gpio_mdc_pins[group], + gpio_mdc_funcs[group]); + pinmux_set_mux_7531(gsw, gpio_mdio_pins[group], + gpio_mdio_funcs[group]); + } + + return 0; +} + +static void mt7531_phy_setting(struct gsw_mt753x *gsw) +{ + int i; + u32 val; + + /* Adjust DAC TX Delay */ + gsw->mmd_write(gsw, 0, PHY_DEV1F, PHY_DEV1F_REG_44, 0xc0); + + for (i = 0; i < MT753X_NUM_PHYS; i++) { + /* Disable EEE */ + gsw->mmd_write(gsw, i, PHY_DEV07, PHY_DEV07_REG_03C, 0); + + /* Enable HW auto downshift */ + gsw->mii_write(gsw, i, 0x1f, 0x1); + val = gsw->mii_read(gsw, i, PHY_EXT_REG_14); + val |= PHY_EN_DOWN_SHFIT; + gsw->mii_write(gsw, i, PHY_EXT_REG_14, val); + + /* Increase SlvDPSready time */ + gsw->mii_write(gsw, i, 0x1f, 0x52b5); + gsw->mii_write(gsw, i, PHY_TR_REG_10, 0xafae); + gsw->mii_write(gsw, i, PHY_TR_REG_12, 0x2f); + gsw->mii_write(gsw, i, PHY_TR_REG_10, 0x8fae); + gsw->mii_write(gsw, i, 0x1f, 0); + + /* Adjust 100_mse_threshold */ + gsw->mmd_write(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_123, 0xffff); + + /* Disable mcc */ + gsw->mmd_write(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_A6, 0x300); + + /* PHY link down power saving enable */ + val = gsw->mii_read(gsw, i, PHY_EXT_REG_17); + val |= PHY_LINKDOWN_POWER_SAVING_EN; + gsw->mii_write(gsw, i, PHY_EXT_REG_17, val); + + val = gsw->mmd_read(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_0C6); + val &= ~PHY_POWER_SAVING_M; + val |= PHY_POWER_SAVING_TX << PHY_POWER_SAVING_S; + gsw->mmd_write(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_0C6, val); + + /* Set TX Pair delay selection */ + gsw->mmd_write(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_13, 0x404); + gsw->mmd_write(gsw, i, PHY_DEV1E, PHY_DEV1E_REG_14, 0x404); + } +} + +static void mt7531_adjust_line_driving(struct gsw_mt753x *gsw, u32 port) +{ + /* For ADC timing margin window for LDO calibration */ + gsw->mmd_write(gsw, port, PHY_DEV1E, RXADC_LDO_CONTROL_2, 0x2222); + + /* Adjust AD sample timing */ + gsw->mmd_write(gsw, port, PHY_DEV1E, RXADC_CONTROL_3, 0x4444); + + /* Adjust Line driver current for different mode */ + gsw->mmd_write(gsw, port, PHY_DEV1F, TXVLD_DA_271, 0x2c63); + + /* Adjust Line driver current for different mode */ + gsw->mmd_write(gsw, port, PHY_DEV1F, TXVLD_DA_272, 0xc6b); + + /* Adjust Line driver amplitude for 10BT */ + gsw->mmd_write(gsw, port, PHY_DEV1F, TXVLD_DA_273, 0x3000); + + /* Adjust RX Echo path filter */ + gsw->mmd_write(gsw, port, PHY_DEV1E, PHY_DEV1E_REG_0FE, 0x2); + + /* Adjust RX HVGA bias current */ + gsw->mmd_write(gsw, port, PHY_DEV1E, PHY_DEV1E_REG_41, 0x3333); + + /* Adjust TX class AB driver 1 */ + gsw->mmd_write(gsw, port, PHY_DEV1F, PHY_DEV1F_REG_268, 0x3aa); + + /* Adjust TX class AB driver 2 */ + gsw->mmd_write(gsw, port, PHY_DEV1F, PHY_DEV1F_REG_269, 0xaaaa); +} + +static void mt7531_eee_setting(struct gsw_mt753x *gsw, u32 port) +{ + u32 tr_reg_control; + u32 val; + + /* Disable generate signal to clear the scramble_lock when lpi mode */ + val = gsw->mmd_read(gsw, port, PHY_DEV1E, PHY_DEV1E_REG_189); + val &= ~DESCRAMBLER_CLEAR_EN; + gsw->mmd_write(gsw, port, PHY_DEV1E, PHY_DEV1E_REG_189, val); + + /* roll back CR*/ + gsw->mii_write(gsw, port, 0x1f, 0x52b5); + gsw->mmd_write(gsw, port, 0x1e, 0x2d1, 0); + tr_reg_control = (1 << 15) | (0 << 13) | (DSP_CH << 11) | + (DSP_NOD_ADDR << 7) | (0x8 << 1); + gsw->mii_write(gsw, port, 17, 0x1b); + gsw->mii_write(gsw, port, 18, 0); + gsw->mii_write(gsw, port, 16, tr_reg_control); + tr_reg_control = (1 << 15) | (0 << 13) | (DSP_CH << 11) | + (DSP_NOD_ADDR << 7) | (0xf << 1); + gsw->mii_write(gsw, port, 17, 0); + gsw->mii_write(gsw, port, 18, 0); + gsw->mii_write(gsw, port, 16, tr_reg_control); + + tr_reg_control = (1 << 15) | (0 << 13) | (DSP_CH << 11) | + (DSP_NOD_ADDR << 7) | (0x10 << 1); + gsw->mii_write(gsw, port, 17, 0x500); + gsw->mii_write(gsw, port, 18, 0); + gsw->mii_write(gsw, port, 16, tr_reg_control); + gsw->mii_write(gsw, port, 0x1f, 0); +} + +static int mt7531_sw_init(struct gsw_mt753x *gsw) +{ + int i; + u32 val; + + gsw->phy_base = (gsw->smi_addr + 1) & MT753X_SMI_ADDR_MASK; + + gsw->mii_read = mt753x_mii_read; + gsw->mii_write = mt753x_mii_write; + gsw->mmd_read = mt753x_mmd_read; + gsw->mmd_write = mt753x_mmd_write; + + for (i = 0; i < MT753X_NUM_PHYS; i++) { + val = gsw->mii_read(gsw, i, MII_BMCR); + val |= BMCR_ISOLATE; + gsw->mii_write(gsw, i, MII_BMCR, val); + } + + /* Force MAC link down before reset */ + mt753x_reg_write(gsw, PMCR(5), FORCE_MODE_LNK); + mt753x_reg_write(gsw, PMCR(6), FORCE_MODE_LNK); + + /* Switch soft reset */ + mt753x_reg_write(gsw, SYS_CTRL, SW_SYS_RST | SW_REG_RST); + usleep_range(10, 20); + + /* Enable MDC input Schmitt Trigger */ + val = mt753x_reg_read(gsw, SMT0_IOLB); + mt753x_reg_write(gsw, SMT0_IOLB, val | SMT_IOLB_5_SMI_MDC_EN); + + /* Set 7531 gpio pinmux */ + mt7531_set_gpio_pinmux(gsw); + + /* Global mac control settings */ + mt753x_reg_write(gsw, GMACCR, + (15 << MTCC_LMT_S) | (11 << MAX_RX_JUMBO_S) | + RX_PKT_LEN_MAX_JUMBO); + + mt7531_core_pll_setup(gsw); + mt7531_mac_port_setup(gsw, 5, &gsw->port5_cfg); + mt7531_mac_port_setup(gsw, 6, &gsw->port6_cfg); + + return 0; +} + +static int mt7531_sw_post_init(struct gsw_mt753x *gsw) +{ + int i; + u32 val; + + /* Internal PHYs are disabled by default. SW should enable them. + * Note that this may already be enabled in bootloader stage. + */ + val = gsw->mmd_read(gsw, 0, PHY_DEV1F, PHY_DEV1F_REG_403); + val |= PHY_EN_BYPASS_MODE; + val &= ~POWER_ON_OFF; + gsw->mmd_write(gsw, 0, PHY_DEV1F, PHY_DEV1F_REG_403, val); + + mt7531_phy_setting(gsw); + + for (i = 0; i < MT753X_NUM_PHYS; i++) { + val = gsw->mii_read(gsw, i, MII_BMCR); + val &= ~BMCR_ISOLATE; + gsw->mii_write(gsw, i, MII_BMCR, val); + } + + for (i = 0; i < MT753X_NUM_PHYS; i++) + mt7531_adjust_line_driving(gsw, i); + + for (i = 0; i < MT753X_NUM_PHYS; i++) + mt7531_eee_setting(gsw, i); + + val = mt753x_reg_read(gsw, CHIP_REV); + val &= CHIP_REV_M; + if (val == CHIP_REV_E1) { + mt7531_internal_phy_calibration(gsw); + } else { + val = mt753x_reg_read(gsw, GBE_EFUSE); + if (val & GBE_SEL_EFUSE_EN) { + val = gsw->mmd_read(gsw, 0, PHY_DEV1F, + PHY_DEV1F_REG_403); + val &= ~GBE_EFUSE_SETTING; + gsw->mmd_write(gsw, 0, PHY_DEV1F, PHY_DEV1F_REG_403, + val); + } else { + mt7531_internal_phy_calibration(gsw); + } + } + + return 0; +} + +struct mt753x_sw_id mt7531_id = { + .model = MT7531, + .detect = mt7531_sw_detect, + .init = mt7531_sw_init, + .post_init = mt7531_sw_post_init +}; + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Zhanguo Ju "); +MODULE_DESCRIPTION("Driver for MediaTek MT753x Gigabit Switch"); diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.h b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.h new file mode 100644 index 0000000000..736cb0c349 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt7531.h @@ -0,0 +1,14 @@ +/* + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _MT7531_H_ +#define _MT7531_H_ + +#include "mt753x.h" + +extern struct mt753x_sw_id mt7531_id; + +#endif /* _MT7531_H_ */ diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x.h b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x.h new file mode 100644 index 0000000000..b9bca5416f --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x.h @@ -0,0 +1,232 @@ +/* + * Driver for MediaTek MT753x gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _MT753X_H_ +#define _MT753X_H_ + +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_SWCONFIG +#include +#endif + +#define MT753X_DFL_CPU_PORT 6 +#define MT753X_NUM_PORTS 7 +#define MT753X_NUM_PHYS 5 +#define MT753X_NUM_VLANS 4095 + +#define MT753X_MAX_VID 4095 +#define MT753X_MIN_VID 0 + +#define MT753X_DFL_SMI_ADDR 0x1f +#define MT753X_SMI_ADDR_MASK 0x1f + +struct gsw_mt753x; + +enum mt753x_model { + MT7530 = 0x7530, + MT7531 = 0x7531 +}; + +struct mt753x_port_entry { + u16 pvid; +}; + +struct mt753x_vlan_entry { + u16 vid; + u8 member; + u8 etags; +}; + +struct mt753x_port_cfg { + struct device_node *np; + int phy_mode; + u32 enabled: 1; + u32 force_link: 1; + u32 speed: 2; + u32 duplex: 1; +}; + +struct mt753x_phy { + struct gsw_mt753x *gsw; + struct net_device netdev; + struct phy_device *phydev; +}; + +struct gsw_mt753x { + u32 id; + + struct device *dev; + struct mii_bus *host_bus; + struct mii_bus *gphy_bus; + struct mutex mii_lock; /* MII access lock */ + u32 smi_addr; + u32 phy_base; + int direct_phy_access; + + enum mt753x_model model; + const char *name; + + struct mt753x_port_cfg port5_cfg; + struct mt753x_port_cfg port6_cfg; + + bool phy_status_poll; + struct mt753x_phy phys[MT753X_NUM_PHYS]; + + int phy_link_sts; + + int irq; + int reset_pin; + struct work_struct irq_worker; + +#ifdef CONFIG_SWCONFIG + struct switch_dev swdev; + + struct mt753x_vlan_entry vlan_entries[MT753X_NUM_VLANS]; + struct mt753x_port_entry port_entries[MT753X_NUM_PORTS]; + + int global_vlan_enable; + u32 cpu_port; +#endif + + int (*mii_read)(struct gsw_mt753x *gsw, int phy, int reg); + void (*mii_write)(struct gsw_mt753x *gsw, int phy, int reg, u16 val); + + int (*mmd_read)(struct gsw_mt753x *gsw, int addr, int devad, u16 reg); + void (*mmd_write)(struct gsw_mt753x *gsw, int addr, int devad, u16 reg, + u16 val); + + struct list_head list; +}; + +struct chip_rev { + const char *name; + u32 rev; +}; + +struct mt753x_sw_id { + enum mt753x_model model; + int (*detect)(struct gsw_mt753x *gsw, struct chip_rev *crev); + int (*init)(struct gsw_mt753x *gsw); + int (*post_init)(struct gsw_mt753x *gsw); +}; + +extern struct list_head mt753x_devs; + +struct gsw_mt753x *mt753x_get_gsw(u32 id); +struct gsw_mt753x *mt753x_get_first_gsw(void); +void mt753x_put_gsw(void); +void mt753x_lock_gsw(void); + +u32 mt753x_reg_read(struct gsw_mt753x *gsw, u32 reg); +void mt753x_reg_write(struct gsw_mt753x *gsw, u32 reg, u32 val); + +int mt753x_mii_read(struct gsw_mt753x *gsw, int phy, int reg); +void mt753x_mii_write(struct gsw_mt753x *gsw, int phy, int reg, u16 val); + +int mt753x_mmd_read(struct gsw_mt753x *gsw, int addr, int devad, u16 reg); +void mt753x_mmd_write(struct gsw_mt753x *gsw, int addr, int devad, u16 reg, + u16 val); + +int mt753x_mmd_ind_read(struct gsw_mt753x *gsw, int addr, int devad, u16 reg); +void mt753x_mmd_ind_write(struct gsw_mt753x *gsw, int addr, int devad, u16 reg, + u16 val); + +void mt753x_irq_worker(struct work_struct *work); +void mt753x_irq_enable(struct gsw_mt753x *gsw); + +/* MDIO Indirect Access Registers */ +#define MII_MMD_ACC_CTL_REG 0x0d +#define MMD_CMD_S 14 +#define MMD_CMD_M 0xc000 +#define MMD_DEVAD_S 0 +#define MMD_DEVAD_M 0x1f + +/* MMD_CMD: MMD commands */ +#define MMD_ADDR 0 +#define MMD_DATA 1 + +#define MII_MMD_ADDR_DATA_REG 0x0e + +/* Procedure of MT753x Internal Register Access + * + * 1. Internal Register Address + * + * The MT753x has a 16-bit register address and each register is 32-bit. + * This means the lowest two bits are not used as the register address is + * 4-byte aligned. + * + * Rest of the valid bits are divided into two parts: + * Bit 15..6 is the Page address + * Bit 5..2 is the low address + * + * ------------------------------------------------------------------- + * | 15 14 13 12 11 10 9 8 7 6 | 5 4 3 2 | 1 0 | + * |----------------------------------------|---------------|--------| + * | Page Address | Address | Unused | + * ------------------------------------------------------------------- + * + * 2. MDIO access timing + * + * The MT753x uses the following MDIO timing for a single register read + * + * Phase 1: Write Page Address + * ------------------------------------------------------------------- + * | ST | OP | PHY_ADDR | TYPE | RSVD | TA | RSVD | PAGE_ADDR | + * ------------------------------------------------------------------- + * | 01 | 01 | 11111 | 1 | 1111 | xx | 00000 | REG_ADDR[15..6] | + * ------------------------------------------------------------------- + * + * Phase 2: Write low Address & Read low word + * ------------------------------------------------------------------- + * | ST | OP | PHY_ADDR | TYPE | LOW_ADDR | TA | DATA | + * ------------------------------------------------------------------- + * | 01 | 10 | 11111 | 0 | REG_ADDR[5..2] | xx | DATA[15..0] | + * ------------------------------------------------------------------- + * + * Phase 3: Read high word + * ------------------------------------------------------------------- + * | ST | OP | PHY_ADDR | TYPE | RSVD | TA | DATA | + * ------------------------------------------------------------------- + * | 01 | 10 | 11111 | 1 | 0000 | xx | DATA[31..16] | + * ------------------------------------------------------------------- + * + * The MT753x uses the following MDIO timing for a single register write + * + * Phase 1: Write Page Address (The same as read) + * + * Phase 2: Write low Address and low word + * ------------------------------------------------------------------- + * | ST | OP | PHY_ADDR | TYPE | LOW_ADDR | TA | DATA | + * ------------------------------------------------------------------- + * | 01 | 01 | 11111 | 0 | REG_ADDR[5..2] | xx | DATA[15..0] | + * ------------------------------------------------------------------- + * + * Phase 3: write high word + * ------------------------------------------------------------------- + * | ST | OP | PHY_ADDR | TYPE | RSVD | TA | DATA | + * ------------------------------------------------------------------- + * | 01 | 01 | 11111 | 1 | 0000 | xx | DATA[31..16] | + * ------------------------------------------------------------------- + * + */ + +/* Internal Register Address fields */ +#define MT753X_REG_PAGE_ADDR_S 6 +#define MT753X_REG_PAGE_ADDR_M 0xffc0 +#define MT753X_REG_ADDR_S 2 +#define MT753X_REG_ADDR_M 0x3c + +#endif /* _MT753X_H_ */ diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_common.c b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_common.c new file mode 100644 index 0000000000..c836a63607 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_common.c @@ -0,0 +1,94 @@ +/* + * Common part for MediaTek MT753x gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +#include "mt753x.h" +#include "mt753x_regs.h" + +void mt753x_irq_enable(struct gsw_mt753x *gsw) +{ + u32 val; + int i; + + /* Record initial PHY link status */ + for (i = 0; i < MT753X_NUM_PHYS; i++) { + val = gsw->mii_read(gsw, i, MII_BMSR); + if (val & BMSR_LSTATUS) + gsw->phy_link_sts |= BIT(i); + } + + val = BIT(MT753X_NUM_PHYS) - 1; + + mt753x_reg_write(gsw, SYS_INT_EN, val); +} + +static void display_port_link_status(struct gsw_mt753x *gsw, u32 port) +{ + u32 pmsr, speed_bits; + const char *speed; + + pmsr = mt753x_reg_read(gsw, PMSR(port)); + + speed_bits = (pmsr & MAC_SPD_STS_M) >> MAC_SPD_STS_S; + + switch (speed_bits) { + case MAC_SPD_10: + speed = "10Mbps"; + break; + case MAC_SPD_100: + speed = "100Mbps"; + break; + case MAC_SPD_1000: + speed = "1Gbps"; + break; + case MAC_SPD_2500: + speed = "2.5Gbps"; + break; + } + + if (pmsr & MAC_LNK_STS) { + dev_info(gsw->dev, "Port %d Link is Up - %s/%s\n", + port, speed, (pmsr & MAC_DPX_STS) ? "Full" : "Half"); + } else { + dev_info(gsw->dev, "Port %d Link is Down\n", port); + } +} + +void mt753x_irq_worker(struct work_struct *work) +{ + struct gsw_mt753x *gsw; + u32 sts, physts, laststs; + int i; + + gsw = container_of(work, struct gsw_mt753x, irq_worker); + + sts = mt753x_reg_read(gsw, SYS_INT_STS); + + /* Check for changed PHY link status */ + for (i = 0; i < MT753X_NUM_PHYS; i++) { + if (!(sts & PHY_LC_INT(i))) + continue; + + laststs = gsw->phy_link_sts & BIT(i); + physts = !!(gsw->mii_read(gsw, i, MII_BMSR) & BMSR_LSTATUS); + physts <<= i; + + if (physts ^ laststs) { + gsw->phy_link_sts ^= BIT(i); + display_port_link_status(gsw, i); + } + } + + mt753x_reg_write(gsw, SYS_INT_STS, sts); + + enable_irq(gsw->irq); +} diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_mdio.c b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_mdio.c new file mode 100644 index 0000000000..695713eed4 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_mdio.c @@ -0,0 +1,740 @@ +/* + * Driver for MediaTek MT753x gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mt753x.h" +#include "mt753x_swconfig.h" +#include "mt753x_regs.h" +#include "mt753x_nl.h" +#include "mt7530.h" +#include "mt7531.h" + +static u32 mt753x_id; +struct list_head mt753x_devs; +static DEFINE_MUTEX(mt753x_devs_lock); + +static struct mt753x_sw_id *mt753x_sw_ids[] = { + &mt7530_id, + &mt7531_id, +}; + +u32 mt753x_reg_read(struct gsw_mt753x *gsw, u32 reg) +{ + u32 high, low; + + mutex_lock(&gsw->host_bus->mdio_lock); + + gsw->host_bus->write(gsw->host_bus, gsw->smi_addr, 0x1f, + (reg & MT753X_REG_PAGE_ADDR_M) >> MT753X_REG_PAGE_ADDR_S); + + low = gsw->host_bus->read(gsw->host_bus, gsw->smi_addr, + (reg & MT753X_REG_ADDR_M) >> MT753X_REG_ADDR_S); + + high = gsw->host_bus->read(gsw->host_bus, gsw->smi_addr, 0x10); + + mutex_unlock(&gsw->host_bus->mdio_lock); + + return (high << 16) | (low & 0xffff); +} + +void mt753x_reg_write(struct gsw_mt753x *gsw, u32 reg, u32 val) +{ + mutex_lock(&gsw->host_bus->mdio_lock); + + gsw->host_bus->write(gsw->host_bus, gsw->smi_addr, 0x1f, + (reg & MT753X_REG_PAGE_ADDR_M) >> MT753X_REG_PAGE_ADDR_S); + + gsw->host_bus->write(gsw->host_bus, gsw->smi_addr, + (reg & MT753X_REG_ADDR_M) >> MT753X_REG_ADDR_S, val & 0xffff); + + gsw->host_bus->write(gsw->host_bus, gsw->smi_addr, 0x10, val >> 16); + + mutex_unlock(&gsw->host_bus->mdio_lock); +} + +/* Indirect MDIO clause 22/45 access */ +static int mt753x_mii_rw(struct gsw_mt753x *gsw, int phy, int reg, u16 data, + u32 cmd, u32 st) +{ + ktime_t timeout; + u32 val, timeout_us; + int ret = 0; + + timeout_us = 100000; + timeout = ktime_add_us(ktime_get(), timeout_us); + while (1) { + val = mt753x_reg_read(gsw, PHY_IAC); + + if ((val & PHY_ACS_ST) == 0) + break; + + if (ktime_compare(ktime_get(), timeout) > 0) + return -ETIMEDOUT; + } + + val = (st << MDIO_ST_S) | + ((cmd << MDIO_CMD_S) & MDIO_CMD_M) | + ((phy << MDIO_PHY_ADDR_S) & MDIO_PHY_ADDR_M) | + ((reg << MDIO_REG_ADDR_S) & MDIO_REG_ADDR_M); + + if (cmd == MDIO_CMD_WRITE || cmd == MDIO_CMD_ADDR) + val |= data & MDIO_RW_DATA_M; + + mt753x_reg_write(gsw, PHY_IAC, val | PHY_ACS_ST); + + timeout_us = 100000; + timeout = ktime_add_us(ktime_get(), timeout_us); + while (1) { + val = mt753x_reg_read(gsw, PHY_IAC); + + if ((val & PHY_ACS_ST) == 0) + break; + + if (ktime_compare(ktime_get(), timeout) > 0) + return -ETIMEDOUT; + } + + if (cmd == MDIO_CMD_READ || cmd == MDIO_CMD_READ_C45) { + val = mt753x_reg_read(gsw, PHY_IAC); + ret = val & MDIO_RW_DATA_M; + } + + return ret; +} + +int mt753x_mii_read(struct gsw_mt753x *gsw, int phy, int reg) +{ + int val; + + if (phy < MT753X_NUM_PHYS) + phy = (gsw->phy_base + phy) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->mii_lock); + val = mt753x_mii_rw(gsw, phy, reg, 0, MDIO_CMD_READ, MDIO_ST_C22); + mutex_unlock(&gsw->mii_lock); + + return val; +} + +void mt753x_mii_write(struct gsw_mt753x *gsw, int phy, int reg, u16 val) +{ + if (phy < MT753X_NUM_PHYS) + phy = (gsw->phy_base + phy) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->mii_lock); + mt753x_mii_rw(gsw, phy, reg, val, MDIO_CMD_WRITE, MDIO_ST_C22); + mutex_unlock(&gsw->mii_lock); +} + +int mt753x_mmd_read(struct gsw_mt753x *gsw, int addr, int devad, u16 reg) +{ + int val; + + if (addr < MT753X_NUM_PHYS) + addr = (gsw->phy_base + addr) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->mii_lock); + mt753x_mii_rw(gsw, addr, devad, reg, MDIO_CMD_ADDR, MDIO_ST_C45); + val = mt753x_mii_rw(gsw, addr, devad, 0, MDIO_CMD_READ_C45, + MDIO_ST_C45); + mutex_unlock(&gsw->mii_lock); + + return val; +} + +void mt753x_mmd_write(struct gsw_mt753x *gsw, int addr, int devad, u16 reg, + u16 val) +{ + if (addr < MT753X_NUM_PHYS) + addr = (gsw->phy_base + addr) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->mii_lock); + mt753x_mii_rw(gsw, addr, devad, reg, MDIO_CMD_ADDR, MDIO_ST_C45); + mt753x_mii_rw(gsw, addr, devad, val, MDIO_CMD_WRITE, MDIO_ST_C45); + mutex_unlock(&gsw->mii_lock); +} + +int mt753x_mmd_ind_read(struct gsw_mt753x *gsw, int addr, int devad, u16 reg) +{ + u16 val; + + if (addr < MT753X_NUM_PHYS) + addr = (gsw->phy_base + addr) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->mii_lock); + + mt753x_mii_rw(gsw, addr, MII_MMD_ACC_CTL_REG, + (MMD_ADDR << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M), + MDIO_CMD_WRITE, MDIO_ST_C22); + + mt753x_mii_rw(gsw, addr, MII_MMD_ADDR_DATA_REG, reg, + MDIO_CMD_WRITE, MDIO_ST_C22); + + mt753x_mii_rw(gsw, addr, MII_MMD_ACC_CTL_REG, + (MMD_DATA << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M), + MDIO_CMD_WRITE, MDIO_ST_C22); + + val = mt753x_mii_rw(gsw, addr, MII_MMD_ADDR_DATA_REG, 0, + MDIO_CMD_READ, MDIO_ST_C22); + + mutex_unlock(&gsw->mii_lock); + + return val; +} + +void mt753x_mmd_ind_write(struct gsw_mt753x *gsw, int addr, int devad, u16 reg, + u16 val) +{ + if (addr < MT753X_NUM_PHYS) + addr = (gsw->phy_base + addr) & MT753X_SMI_ADDR_MASK; + + mutex_lock(&gsw->mii_lock); + + mt753x_mii_rw(gsw, addr, MII_MMD_ACC_CTL_REG, + (MMD_ADDR << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M), + MDIO_CMD_WRITE, MDIO_ST_C22); + + mt753x_mii_rw(gsw, addr, MII_MMD_ADDR_DATA_REG, reg, + MDIO_CMD_WRITE, MDIO_ST_C22); + + mt753x_mii_rw(gsw, addr, MII_MMD_ACC_CTL_REG, + (MMD_DATA << MMD_CMD_S) | + ((devad << MMD_DEVAD_S) & MMD_DEVAD_M), + MDIO_CMD_WRITE, MDIO_ST_C22); + + mt753x_mii_rw(gsw, addr, MII_MMD_ADDR_DATA_REG, val, + MDIO_CMD_WRITE, MDIO_ST_C22); + + mutex_unlock(&gsw->mii_lock); +} + +static void mt753x_load_port_cfg(struct gsw_mt753x *gsw) +{ + struct device_node *port_np; + struct device_node *fixed_link_node; + struct mt753x_port_cfg *port_cfg; + u32 port; + + for_each_child_of_node(gsw->dev->of_node, port_np) { + if (!of_device_is_compatible(port_np, "mediatek,mt753x-port")) + continue; + + if (!of_device_is_available(port_np)) + continue; + + if (of_property_read_u32(port_np, "reg", &port)) + continue; + + switch (port) { + case 5: + port_cfg = &gsw->port5_cfg; + break; + case 6: + port_cfg = &gsw->port6_cfg; + break; + default: + continue; + } + + if (port_cfg->enabled) { + dev_info(gsw->dev, "duplicated node for port%d\n", + port_cfg->phy_mode); + continue; + } + + port_cfg->np = port_np; + + port_cfg->phy_mode = of_get_phy_mode(port_np); + if (port_cfg->phy_mode < 0) { + dev_info(gsw->dev, "incorrect phy-mode %d\n", port); + continue; + } + + fixed_link_node = of_get_child_by_name(port_np, "fixed-link"); + if (fixed_link_node) { + u32 speed; + + port_cfg->force_link = 1; + port_cfg->duplex = of_property_read_bool( + fixed_link_node, + "full-duplex"); + + if (of_property_read_u32(fixed_link_node, "speed", + &speed)) { + speed = 0; + continue; + } + + of_node_put(fixed_link_node); + + switch (speed) { + case 10: + port_cfg->speed = MAC_SPD_10; + break; + case 100: + port_cfg->speed = MAC_SPD_100; + break; + case 1000: + port_cfg->speed = MAC_SPD_1000; + break; + case 2500: + port_cfg->speed = MAC_SPD_2500; + break; + default: + dev_info(gsw->dev, "incorrect speed %d\n", + speed); + continue; + } + } + + port_cfg->enabled = 1; + } +} + +static void mt753x_add_gsw(struct gsw_mt753x *gsw) +{ + mutex_lock(&mt753x_devs_lock); + gsw->id = mt753x_id++; + INIT_LIST_HEAD(&gsw->list); + list_add_tail(&gsw->list, &mt753x_devs); + mutex_unlock(&mt753x_devs_lock); +} + +static void mt753x_remove_gsw(struct gsw_mt753x *gsw) +{ + mutex_lock(&mt753x_devs_lock); + list_del(&gsw->list); + mutex_unlock(&mt753x_devs_lock); +} + +struct gsw_mt753x *mt753x_get_gsw(u32 id) +{ + struct gsw_mt753x *dev; + + mutex_lock(&mt753x_devs_lock); + + list_for_each_entry(dev, &mt753x_devs, list) { + if (dev->id == id) + return dev; + } + + mutex_unlock(&mt753x_devs_lock); + + return NULL; +} + +struct gsw_mt753x *mt753x_get_first_gsw(void) +{ + struct gsw_mt753x *dev; + + mutex_lock(&mt753x_devs_lock); + + list_for_each_entry(dev, &mt753x_devs, list) + return dev; + + mutex_unlock(&mt753x_devs_lock); + + return NULL; +} + +void mt753x_put_gsw(void) +{ + mutex_unlock(&mt753x_devs_lock); +} + +void mt753x_lock_gsw(void) +{ + mutex_lock(&mt753x_devs_lock); +} + +static int mt753x_hw_reset(struct gsw_mt753x *gsw) +{ + struct device_node *np = gsw->dev->of_node; + struct reset_control *rstc; + int mcm; + int ret = -EINVAL; + + mcm = of_property_read_bool(np, "mediatek,mcm"); + if (mcm) { + rstc = devm_reset_control_get(gsw->dev, "mcm"); + ret = IS_ERR(rstc); + if (IS_ERR(rstc)) { + dev_err(gsw->dev, "Missing reset ctrl of switch\n"); + return ret; + } + + reset_control_assert(rstc); + msleep(30); + reset_control_deassert(rstc); + + gsw->reset_pin = -1; + return 0; + } + + gsw->reset_pin = of_get_named_gpio(np, "reset-gpios", 0); + if (gsw->reset_pin < 0) { + dev_err(gsw->dev, "Missing reset pin of switch\n"); + return ret; + } + + ret = devm_gpio_request(gsw->dev, gsw->reset_pin, "mt753x-reset"); + if (ret) { + dev_info(gsw->dev, "Failed to request gpio %d\n", + gsw->reset_pin); + return ret; + } + + gpio_direction_output(gsw->reset_pin, 0); + msleep(30); + gpio_set_value(gsw->reset_pin, 1); + msleep(500); + + return 0; +} + +static int mt753x_mdio_read(struct mii_bus *bus, int addr, int reg) +{ + struct gsw_mt753x *gsw = bus->priv; + + return gsw->mii_read(gsw, addr, reg); +} + +static int mt753x_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val) +{ + struct gsw_mt753x *gsw = bus->priv; + + gsw->mii_write(gsw, addr, reg, val); + + return 0; +} + +static const struct net_device_ops mt753x_dummy_netdev_ops = { +}; + +static void mt753x_phy_link_handler(struct net_device *dev) +{ + struct mt753x_phy *phy = container_of(dev, struct mt753x_phy, netdev); + struct phy_device *phydev = phy->phydev; + struct gsw_mt753x *gsw = phy->gsw; + u32 port = phy - gsw->phys; + + if (phydev->link) { + dev_info(gsw->dev, + "Port %d Link is Up - %s/%s - flow control %s\n", + port, phy_speed_to_str(phydev->speed), + (phydev->duplex == DUPLEX_FULL) ? "Full" : "Half", + phydev->pause ? "rx/tx" : "off"); + } else { + dev_info(gsw->dev, "Port %d Link is Down\n", port); + } +} + +static void mt753x_connect_internal_phys(struct gsw_mt753x *gsw, + struct device_node *mii_np) +{ + struct device_node *phy_np; + struct mt753x_phy *phy; + int phy_mode; + u32 phyad; + + if (!mii_np) + return; + + for_each_child_of_node(mii_np, phy_np) { + if (of_property_read_u32(phy_np, "reg", &phyad)) + continue; + + if (phyad >= MT753X_NUM_PHYS) + continue; + + phy_mode = of_get_phy_mode(phy_np); + if (phy_mode < 0) { + dev_info(gsw->dev, "incorrect phy-mode %d for PHY %d\n", + phy_mode, phyad); + continue; + } + + phy = &gsw->phys[phyad]; + phy->gsw = gsw; + + init_dummy_netdev(&phy->netdev); + phy->netdev.netdev_ops = &mt753x_dummy_netdev_ops; + + phy->phydev = of_phy_connect(&phy->netdev, phy_np, + mt753x_phy_link_handler, 0, phy_mode); + if (!phy->phydev) { + dev_info(gsw->dev, "could not connect to PHY %d\n", + phyad); + continue; + } + + phy_start(phy->phydev); + } +} + +static void mt753x_disconnect_internal_phys(struct gsw_mt753x *gsw) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(gsw->phys); i++) { + if (gsw->phys[i].phydev) { + phy_stop(gsw->phys[i].phydev); + phy_disconnect(gsw->phys[i].phydev); + gsw->phys[i].phydev = NULL; + } + } +} + +static int mt753x_mdio_register(struct gsw_mt753x *gsw) +{ + struct device_node *mii_np; + int i, ret; + + mii_np = of_get_child_by_name(gsw->dev->of_node, "mdio-bus"); + if (mii_np && !of_device_is_available(mii_np)) { + ret = -ENODEV; + goto err_put_node; + } + + gsw->gphy_bus = devm_mdiobus_alloc(gsw->dev); + if (!gsw->gphy_bus) { + ret = -ENOMEM; + goto err_put_node; + } + + gsw->gphy_bus->name = "mt753x_mdio"; + gsw->gphy_bus->read = mt753x_mdio_read; + gsw->gphy_bus->write = mt753x_mdio_write; + gsw->gphy_bus->priv = gsw; + gsw->gphy_bus->parent = gsw->dev; + gsw->gphy_bus->phy_mask = BIT(MT753X_NUM_PHYS) - 1; + + for (i = 0; i < PHY_MAX_ADDR; i++) + gsw->gphy_bus->irq[i] = PHY_POLL; + + if (mii_np) + snprintf(gsw->gphy_bus->id, MII_BUS_ID_SIZE, "%s@%s", + mii_np->name, gsw->dev->of_node->name); + else + snprintf(gsw->gphy_bus->id, MII_BUS_ID_SIZE, "mdio@%s", + gsw->dev->of_node->name); + + ret = of_mdiobus_register(gsw->gphy_bus, mii_np); + + if (ret) { + devm_mdiobus_free(gsw->dev, gsw->gphy_bus); + gsw->gphy_bus = NULL; + } else { + if (gsw->phy_status_poll) + mt753x_connect_internal_phys(gsw, mii_np); + } + +err_put_node: + if (mii_np) + of_node_put(mii_np); + + return ret; +} + +static irqreturn_t mt753x_irq_handler(int irq, void *dev) +{ + struct gsw_mt753x *gsw = dev; + + disable_irq_nosync(gsw->irq); + + schedule_work(&gsw->irq_worker); + + return IRQ_HANDLED; +} + +static int mt753x_probe(struct platform_device *pdev) +{ + struct gsw_mt753x *gsw; + struct mt753x_sw_id *sw; + struct device_node *np = pdev->dev.of_node; + struct device_node *mdio; + struct mii_bus *mdio_bus; + int ret = -EINVAL; + struct chip_rev rev; + int i; + + mdio = of_parse_phandle(np, "mediatek,mdio", 0); + if (!mdio) + return -EINVAL; + + mdio_bus = of_mdio_find_bus(mdio); + if (!mdio_bus) + return -EPROBE_DEFER; + + gsw = devm_kzalloc(&pdev->dev, sizeof(struct gsw_mt753x), GFP_KERNEL); + if (!gsw) + return -ENOMEM; + + gsw->host_bus = mdio_bus; + gsw->dev = &pdev->dev; + mutex_init(&gsw->mii_lock); + + /* Switch hard reset */ + mt753x_hw_reset(gsw); + + /* Fetch the SMI address dirst */ + if (of_property_read_u32(np, "mediatek,smi-addr", &gsw->smi_addr)) + gsw->smi_addr = MT753X_DFL_SMI_ADDR; + + /* Load MAC port configurations */ + mt753x_load_port_cfg(gsw); + + /* Check for valid switch and then initialize */ + for (i = 0; i < ARRAY_SIZE(mt753x_sw_ids); i++) { + if (!mt753x_sw_ids[i]->detect(gsw, &rev)) { + sw = mt753x_sw_ids[i]; + + gsw->name = rev.name; + gsw->model = sw->model; + + dev_info(gsw->dev, "Switch is MediaTek %s rev %d", + gsw->name, rev.rev); + + /* Initialize the switch */ + ret = sw->init(gsw); + if (ret) + goto fail; + + break; + } + } + + if (i >= ARRAY_SIZE(mt753x_sw_ids)) { + dev_err(gsw->dev, "No mt753x switch found\n"); + goto fail; + } + + gsw->irq = platform_get_irq(pdev, 0); + if (gsw->irq >= 0) { + ret = devm_request_irq(gsw->dev, gsw->irq, mt753x_irq_handler, + 0, dev_name(gsw->dev), gsw); + if (ret) { + dev_err(gsw->dev, "Failed to request irq %d\n", + gsw->irq); + goto fail; + } + + INIT_WORK(&gsw->irq_worker, mt753x_irq_worker); + } + + platform_set_drvdata(pdev, gsw); + + gsw->phy_status_poll = of_property_read_bool(gsw->dev->of_node, + "mediatek,phy-poll"); + + mt753x_add_gsw(gsw); + + mt753x_mdio_register(gsw); + +#ifdef CONFIG_SWCONFIG + mt753x_swconfig_init(gsw); +#endif + + if (sw->post_init) + sw->post_init(gsw); + + if (gsw->irq >= 0) + mt753x_irq_enable(gsw); + + return 0; + +fail: + devm_kfree(&pdev->dev, gsw); + + return ret; +} + +static int mt753x_remove(struct platform_device *pdev) +{ + struct gsw_mt753x *gsw = platform_get_drvdata(pdev); + + if (gsw->irq >= 0) + cancel_work_sync(&gsw->irq_worker); + + if (gsw->reset_pin >= 0) + devm_gpio_free(&pdev->dev, gsw->reset_pin); + +#ifdef CONFIG_SWCONFIG + mt753x_swconfig_destroy(gsw); +#endif + + mt753x_disconnect_internal_phys(gsw); + + mdiobus_unregister(gsw->gphy_bus); + + mt753x_remove_gsw(gsw); + + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static const struct of_device_id mt753x_ids[] = { + { .compatible = "mediatek,mt753x" }, + { }, +}; + +MODULE_DEVICE_TABLE(of, mt753x_ids); + +static struct platform_driver mt753x_driver = { + .probe = mt753x_probe, + .remove = mt753x_remove, + .driver = { + .name = "mt753x", + .of_match_table = mt753x_ids, + }, +}; + +static int __init mt753x_init(void) +{ + int ret; + + INIT_LIST_HEAD(&mt753x_devs); + ret = platform_driver_register(&mt753x_driver); + + mt753x_nl_init(); + + return ret; +} +module_init(mt753x_init); + +static void __exit mt753x_exit(void) +{ + mt753x_nl_exit(); + + platform_driver_unregister(&mt753x_driver); +} +module_exit(mt753x_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Weijie Gao "); +MODULE_DESCRIPTION("Driver for MediaTek MT753x Gigabit Switch"); diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.c b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.c new file mode 100644 index 0000000000..756df4e21f --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.c @@ -0,0 +1,386 @@ +/* + * Configuration layer for MediaTek MT753x gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Sirui Zhao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include + +#include "mt753x.h" +#include "mt753x_nl.h" + +#define MT753X_NL_CMD_REQ_ATTRS(attr) \ + .required_attrs = attr, \ + .nr_required_attrs = ARRAY_SIZE(attr), + +struct mt753x_nl_cmd_item { + enum mt753x_cmd cmd; + bool require_dev; + int (*process)(struct genl_info *info, struct gsw_mt753x *gsw); + u32 nr_required_attrs; + const enum mt753x_attr *required_attrs; +}; + +static int mt753x_nl_response(struct sk_buff *skb, struct genl_info *info); + +static const struct nla_policy mt753x_nl_cmd_policy[] = { + [MT753X_ATTR_TYPE_MESG] = { .type = NLA_STRING }, + [MT753X_ATTR_TYPE_PHY] = { .type = NLA_S32 }, + [MT753X_ATTR_TYPE_REG] = { .type = NLA_S32 }, + [MT753X_ATTR_TYPE_VAL] = { .type = NLA_S32 }, + [MT753X_ATTR_TYPE_DEV_NAME] = { .type = NLA_S32 }, + [MT753X_ATTR_TYPE_DEV_ID] = { .type = NLA_S32 }, + [MT753X_ATTR_TYPE_DEVAD] = { .type = NLA_S32 }, +}; + +static const struct genl_ops mt753x_nl_ops[] = { + { + .cmd = MT753X_CMD_REQUEST, + .doit = mt753x_nl_response, + .policy = mt753x_nl_cmd_policy, + .flags = GENL_ADMIN_PERM, + }, { + .cmd = MT753X_CMD_READ, + .doit = mt753x_nl_response, + .policy = mt753x_nl_cmd_policy, + .flags = GENL_ADMIN_PERM, + }, { + .cmd = MT753X_CMD_WRITE, + .doit = mt753x_nl_response, + .policy = mt753x_nl_cmd_policy, + .flags = GENL_ADMIN_PERM, + }, +}; + +static struct genl_family mt753x_nl_family = { +// .id = GENL_ID_GENERATE, + .name = MT753X_GENL_NAME, + .version = MT753X_GENL_VERSION, + .maxattr = MT753X_NR_ATTR_TYPE, + .ops = mt753x_nl_ops, + .n_ops = ARRAY_SIZE(mt753x_nl_ops), +}; + +static int mt753x_nl_list_devs(char *buff, int size) +{ + struct gsw_mt753x *gsw; + int len, total = 0; + char buf[80]; + + memset(buff, 0, size); + + mt753x_lock_gsw(); + + list_for_each_entry(gsw, &mt753x_devs, list) { + len = snprintf(buf, sizeof(buf), + "id: %d, model: %s, node: %s\n", + gsw->id, gsw->name, gsw->dev->of_node->name); + strncat(buff, buf, size - total); + total += len; + } + + mt753x_put_gsw(); + + return total; +} + +static int mt753x_nl_prepare_reply(struct genl_info *info, u8 cmd, + struct sk_buff **skbp) +{ + struct sk_buff *msg; + void *reply; + + if (!info) + return -EINVAL; + + msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + /* Construct send-back message header */ + reply = genlmsg_put(msg, info->snd_portid, info->snd_seq, + &mt753x_nl_family, 0, cmd); + if (!reply) { + nlmsg_free(msg); + return -EINVAL; + } + + *skbp = msg; + return 0; +} + +static int mt753x_nl_send_reply(struct sk_buff *skb, struct genl_info *info) +{ + struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb)); + void *reply = genlmsg_data(genlhdr); + + /* Finalize a generic netlink message (update message header) */ + genlmsg_end(skb, reply); + + /* reply to a request */ + return genlmsg_reply(skb, info); +} + +static s32 mt753x_nl_get_s32(struct genl_info *info, enum mt753x_attr attr, + s32 defval) +{ + struct nlattr *na; + + na = info->attrs[attr]; + if (na) + return nla_get_s32(na); + + return defval; +} + +static int mt753x_nl_get_u32(struct genl_info *info, enum mt753x_attr attr, + u32 *val) +{ + struct nlattr *na; + + na = info->attrs[attr]; + if (na) { + *val = nla_get_u32(na); + return 0; + } + + return -1; +} + +static struct gsw_mt753x *mt753x_nl_parse_find_gsw(struct genl_info *info) +{ + struct gsw_mt753x *gsw; + struct nlattr *na; + int gsw_id; + + na = info->attrs[MT753X_ATTR_TYPE_DEV_ID]; + if (na) { + gsw_id = nla_get_s32(na); + if (gsw_id >= 0) + gsw = mt753x_get_gsw(gsw_id); + else + gsw = mt753x_get_first_gsw(); + } else { + gsw = mt753x_get_first_gsw(); + } + + return gsw; +} + +static int mt753x_nl_get_swdevs(struct genl_info *info, struct gsw_mt753x *gsw) +{ + struct sk_buff *rep_skb = NULL; + char dev_info[512]; + int ret; + + ret = mt753x_nl_list_devs(dev_info, sizeof(dev_info)); + if (!ret) { + pr_info("No switch registered\n"); + return -EINVAL; + } + + ret = mt753x_nl_prepare_reply(info, MT753X_CMD_REPLY, &rep_skb); + if (ret < 0) + goto err; + + ret = nla_put_string(rep_skb, MT753X_ATTR_TYPE_MESG, dev_info); + if (ret < 0) + goto err; + + return mt753x_nl_send_reply(rep_skb, info); + +err: + if (rep_skb) + nlmsg_free(rep_skb); + + return ret; +} + +static int mt753x_nl_reply_read(struct genl_info *info, struct gsw_mt753x *gsw) +{ + struct sk_buff *rep_skb = NULL; + s32 phy, devad, reg; + int ret, value; + + phy = mt753x_nl_get_s32(info, MT753X_ATTR_TYPE_PHY, -1); + devad = mt753x_nl_get_s32(info, MT753X_ATTR_TYPE_DEVAD, -1); + reg = mt753x_nl_get_s32(info, MT753X_ATTR_TYPE_REG, -1); + + if (reg < 0) + goto err; + + ret = mt753x_nl_prepare_reply(info, MT753X_CMD_READ, &rep_skb); + if (ret < 0) + goto err; + + if (phy >= 0) { + if (devad < 0) + value = gsw->mii_read(gsw, phy, reg); + else + value = gsw->mmd_read(gsw, phy, devad, reg); + } else { + value = mt753x_reg_read(gsw, reg); + } + + ret = nla_put_s32(rep_skb, MT753X_ATTR_TYPE_REG, reg); + if (ret < 0) + goto err; + + ret = nla_put_s32(rep_skb, MT753X_ATTR_TYPE_VAL, value); + if (ret < 0) + goto err; + + return mt753x_nl_send_reply(rep_skb, info); + +err: + if (rep_skb) + nlmsg_free(rep_skb); + + return ret; +} + +static int mt753x_nl_reply_write(struct genl_info *info, struct gsw_mt753x *gsw) +{ + struct sk_buff *rep_skb = NULL; + s32 phy, devad, reg; + u32 value; + int ret; + + phy = mt753x_nl_get_s32(info, MT753X_ATTR_TYPE_PHY, -1); + devad = mt753x_nl_get_s32(info, MT753X_ATTR_TYPE_DEVAD, -1); + reg = mt753x_nl_get_s32(info, MT753X_ATTR_TYPE_REG, -1); + + if (mt753x_nl_get_u32(info, MT753X_ATTR_TYPE_VAL, &value)) + goto err; + + if (reg < 0) + goto err; + + ret = mt753x_nl_prepare_reply(info, MT753X_CMD_WRITE, &rep_skb); + if (ret < 0) + goto err; + + if (phy >= 0) { + if (devad < 0) + gsw->mii_write(gsw, phy, reg, value); + else + gsw->mmd_write(gsw, phy, devad, reg, value); + } else { + mt753x_reg_write(gsw, reg, value); + } + + ret = nla_put_s32(rep_skb, MT753X_ATTR_TYPE_REG, reg); + if (ret < 0) + goto err; + + ret = nla_put_s32(rep_skb, MT753X_ATTR_TYPE_VAL, value); + if (ret < 0) + goto err; + + return mt753x_nl_send_reply(rep_skb, info); + +err: + if (rep_skb) + nlmsg_free(rep_skb); + + return ret; +} + +static const enum mt753x_attr mt753x_nl_cmd_read_attrs[] = { + MT753X_ATTR_TYPE_REG +}; + +static const enum mt753x_attr mt753x_nl_cmd_write_attrs[] = { + MT753X_ATTR_TYPE_REG, + MT753X_ATTR_TYPE_VAL +}; + +static const struct mt753x_nl_cmd_item mt753x_nl_cmds[] = { + { + .cmd = MT753X_CMD_REQUEST, + .require_dev = false, + .process = mt753x_nl_get_swdevs + }, { + .cmd = MT753X_CMD_READ, + .require_dev = true, + .process = mt753x_nl_reply_read, + MT753X_NL_CMD_REQ_ATTRS(mt753x_nl_cmd_read_attrs) + }, { + .cmd = MT753X_CMD_WRITE, + .require_dev = true, + .process = mt753x_nl_reply_write, + MT753X_NL_CMD_REQ_ATTRS(mt753x_nl_cmd_write_attrs) + } +}; + +static int mt753x_nl_response(struct sk_buff *skb, struct genl_info *info) +{ + struct genlmsghdr *hdr = nlmsg_data(info->nlhdr); + const struct mt753x_nl_cmd_item *cmditem = NULL; + struct gsw_mt753x *gsw = NULL; + u32 sat_req_attrs = 0; + int i, ret; + + for (i = 0; i < ARRAY_SIZE(mt753x_nl_cmds); i++) { + if (hdr->cmd == mt753x_nl_cmds[i].cmd) { + cmditem = &mt753x_nl_cmds[i]; + break; + } + } + + if (!cmditem) { + pr_info("mt753x-nl: unknown cmd %u\n", hdr->cmd); + return -EINVAL; + } + + for (i = 0; i < cmditem->nr_required_attrs; i++) { + if (info->attrs[cmditem->required_attrs[i]]) + sat_req_attrs++; + } + + if (sat_req_attrs != cmditem->nr_required_attrs) { + pr_info("mt753x-nl: missing required attr(s) for cmd %u\n", + hdr->cmd); + return -EINVAL; + } + + if (cmditem->require_dev) { + gsw = mt753x_nl_parse_find_gsw(info); + if (!gsw) { + pr_info("mt753x-nl: failed to find switch dev\n"); + return -EINVAL; + } + } + + ret = cmditem->process(info, gsw); + + mt753x_put_gsw(); + + return ret; +} + +int __init mt753x_nl_init(void) +{ + int ret; + + ret = genl_register_family(&mt753x_nl_family); + if (ret) { + pr_info("mt753x-nl: genl_register_family_with_ops failed\n"); + return ret; + } + + return 0; +} + +void __exit mt753x_nl_exit(void) +{ + genl_unregister_family(&mt753x_nl_family); +} diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.h b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.h new file mode 100644 index 0000000000..f6a1df34e6 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_nl.h @@ -0,0 +1,47 @@ +/* + * Driver for MediaTek MT753x gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Sirui Zhao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _MT753X_NL_H_ +#define _MT753X_NL_H_ + +#define MT753X_GENL_NAME "mt753x" +#define MT753X_GENL_VERSION 0x1 + +enum mt753x_cmd { + MT753X_CMD_UNSPEC = 0, + MT753X_CMD_REQUEST, + MT753X_CMD_REPLY, + MT753X_CMD_READ, + MT753X_CMD_WRITE, + + __MT753X_CMD_MAX, +}; + +enum mt753x_attr { + MT753X_ATTR_TYPE_UNSPEC = 0, + MT753X_ATTR_TYPE_MESG, + MT753X_ATTR_TYPE_PHY, + MT753X_ATTR_TYPE_DEVAD, + MT753X_ATTR_TYPE_REG, + MT753X_ATTR_TYPE_VAL, + MT753X_ATTR_TYPE_DEV_NAME, + MT753X_ATTR_TYPE_DEV_ID, + + __MT753X_ATTR_TYPE_MAX, +}; + +#define MT753X_NR_ATTR_TYPE (__MT753X_ATTR_TYPE_MAX - 1) + +#ifdef __KERNEL__ +int __init mt753x_nl_init(void); +void __exit mt753x_nl_exit(void); +#endif /* __KERNEL__ */ + +#endif /* _MT753X_NL_H_ */ diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_regs.h b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_regs.h new file mode 100644 index 0000000000..15255277ab --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_regs.h @@ -0,0 +1,298 @@ +/* + * Register definitions for MediaTek MT753x Gigabit switches + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _MT753X_REGS_H_ +#define _MT753X_REGS_H_ + +#include + +/* Values of Egress TAG Control */ +#define ETAG_CTRL_UNTAG 0 +#define ETAG_CTRL_TAG 2 +#define ETAG_CTRL_SWAP 1 +#define ETAG_CTRL_STACK 3 + +#define VTCR 0x90 +#define VAWD1 0x94 +#define VAWD2 0x98 + +/* Fields of VTCR */ +#define VTCR_BUSY BIT(31) +#define IDX_INVLD BIT(16) +#define VTCR_FUNC_S 12 +#define VTCR_FUNC_M 0xf000 +#define VTCR_VID_S 0 +#define VTCR_VID_M 0xfff + +/* Values of VTCR_FUNC */ +#define VTCR_READ_VLAN_ENTRY 0 +#define VTCR_WRITE_VLAN_ENTRY 1 +#define VTCR_INVD_VLAN_ENTRY 2 +#define VTCR_ENABLE_VLAN_ENTRY 3 +#define VTCR_READ_ACL_ENTRY 4 +#define VTCR_WRITE_ACL_ENTRY 5 +#define VTCR_READ_TRTCM_TABLE 6 +#define VTCR_WRITE_TRTCM_TABLE 7 +#define VTCR_READ_ACL_MASK_ENTRY 8 +#define VTCR_WRITE_ACL_MASK_ENTRY 9 +#define VTCR_READ_ACL_RULE_ENTRY 10 +#define VTCR_WRITE_ACL_RULE_ENTRY 11 +#define VTCR_READ_ACL_RATE_ENTRY 12 +#define VTCR_WRITE_ACL_RATE_ENTRY 13 + +/* VLAN entry fields */ +/* VAWD1 */ +#define PORT_STAG BIT(31) +#define IVL_MAC BIT(30) +#define EG_CON BIT(29) +#define VTAG_EN BIT(28) +#define COPY_PRI BIT(27) +#define USER_PRI_S 24 +#define USER_PRI_M 0x7000000 +#define PORT_MEM_S 16 +#define PORT_MEM_M 0xff0000 +#define S_TAG1_S 4 +#define S_TAG1_M 0xfff0 +#define FID_S 1 +#define FID_M 0x0e +#define VENTRY_VALID BIT(0) + +/* VAWD2 */ +#define S_TAG2_S 16 +#define S_TAG2_M 0xffff0000 +#define PORT_ETAG_S(p) ((p) * 2) +#define PORT_ETAG_M 0x03 + +#define PORT_CTRL_BASE 0x2000 +#define PORT_CTRL_PORT_OFFSET 0x100 +#define PORT_CTRL_REG(p, r) (PORT_CTRL_BASE + \ + (p) * PORT_CTRL_PORT_OFFSET + (r)) +#define CKGCR(p) PORT_CTRL_REG(p, 0x00) +#define PCR(p) PORT_CTRL_REG(p, 0x04) +#define PIC(p) PORT_CTRL_REG(p, 0x08) +#define PSC(p) PORT_CTRL_REG(p, 0x0c) +#define PVC(p) PORT_CTRL_REG(p, 0x10) +#define PPBV1(p) PORT_CTRL_REG(p, 0x14) +#define PPBV2(p) PORT_CTRL_REG(p, 0x18) +#define BSR(p) PORT_CTRL_REG(p, 0x1c) +#define STAG01 PORT_CTRL_REG(p, 0x20) +#define STAG23 PORT_CTRL_REG(p, 0x24) +#define STAG45 PORT_CTRL_REG(p, 0x28) +#define STAG67 PORT_CTRL_REG(p, 0x2c) + +#define PPBV(p, g) (PPBV1(p) + ((g) / 2) * 4) + +/* Fields of PCR */ +#define MLDV2_EN BIT(30) +#define EG_TAG_S 28 +#define EG_TAG_M 0x30000000 +#define PORT_PRI_S 24 +#define PORT_PRI_M 0x7000000 +#define PORT_MATRIX_S 16 +#define PORT_MATRIX_M 0xff0000 +#define UP2DSCP_EN BIT(12) +#define UP2TAG_EN BIT(11) +#define ACL_EN BIT(10) +#define PORT_TX_MIR BIT(9) +#define PORT_RX_MIR BIT(8) +#define ACL_MIR BIT(7) +#define MIS_PORT_FW_S 4 +#define MIS_PORT_FW_M 0x70 +#define VLAN_MIS BIT(2) +#define PORT_VLAN_S 0 +#define PORT_VLAN_M 0x03 + +/* Values of PORT_VLAN */ +#define PORT_MATRIX_MODE 0 +#define FALLBACK_MODE 1 +#define CHECK_MODE 2 +#define SECURITY_MODE 3 + +/* Fields of PVC */ +#define STAG_VPID_S 16 +#define STAG_VPID_M 0xffff0000 +#define DIS_PVID BIT(15) +#define FORCE_PVID BIT(14) +#define PT_VPM BIT(12) +#define PT_OPTION BIT(11) +#define PVC_EG_TAG_S 8 +#define PVC_EG_TAG_M 0x700 +#define VLAN_ATTR_S 6 +#define VLAN_ATTR_M 0xc0 +#define PVC_PORT_STAG BIT(5) +#define BC_LKYV_EN BIT(4) +#define MC_LKYV_EN BIT(3) +#define UC_LKYV_EN BIT(2) +#define ACC_FRM_S 0 +#define ACC_FRM_M 0x03 + +/* Values of VLAN_ATTR */ +#define VA_USER_PORT 0 +#define VA_STACK_PORT 1 +#define VA_TRANSLATION_PORT 2 +#define VA_TRANSPARENT_PORT 3 + +/* Fields of PPBV */ +#define GRP_PORT_PRI_S(g) (((g) % 2) * 16 + 13) +#define GRP_PORT_PRI_M 0x07 +#define GRP_PORT_VID_S(g) (((g) % 2) * 16) +#define GRP_PORT_VID_M 0xfff + +#define PORT_MAC_CTRL_BASE 0x3000 +#define PORT_MAC_CTRL_PORT_OFFSET 0x100 +#define PORT_MAC_CTRL_REG(p, r) (PORT_MAC_CTRL_BASE + \ + (p) * PORT_MAC_CTRL_PORT_OFFSET + (r)) +#define PMCR(p) PORT_MAC_CTRL_REG(p, 0x00) +#define PMEEECR(p) PORT_MAC_CTRL_REG(p, 0x04) +#define PMSR(p) PORT_MAC_CTRL_REG(p, 0x08) +#define PINT_EN(p) PORT_MAC_CTRL_REG(p, 0x10) +#define PINT_STS(p) PORT_MAC_CTRL_REG(p, 0x14) + +#define GMACCR (PORT_MAC_CTRL_BASE + 0xe0) +#define TXCRC_EN BIT(19) +#define RXCRC_EN BIT(18) +#define PRMBL_LMT_EN BIT(17) +#define MTCC_LMT_S 9 +#define MTCC_LMT_M 0x1e00 +#define MAX_RX_JUMBO_S 2 +#define MAX_RX_JUMBO_M 0x3c +#define MAX_RX_PKT_LEN_S 0 +#define MAX_RX_PKT_LEN_M 0x3 + +/* Values of MAX_RX_PKT_LEN */ +#define RX_PKT_LEN_1518 0 +#define RX_PKT_LEN_1536 1 +#define RX_PKT_LEN_1522 2 +#define RX_PKT_LEN_MAX_JUMBO 3 + +/* Fields of PMCR */ +#define IPG_CFG_S 18 +#define IPG_CFG_M 0xc0000 +#define EXT_PHY BIT(17) +#define MAC_MODE BIT(16) +#define MAC_TX_EN BIT(14) +#define MAC_RX_EN BIT(13) +#define MAC_PRE BIT(11) +#define BKOFF_EN BIT(9) +#define BACKPR_EN BIT(8) +#define FORCE_EEE1G BIT(7) +#define FORCE_EEE1000 BIT(6) +#define FORCE_RX_FC BIT(5) +#define FORCE_TX_FC BIT(4) +#define FORCE_SPD_S 2 +#define FORCE_SPD_M 0x0c +#define FORCE_DPX BIT(1) +#define FORCE_LINK BIT(0) + +/* Fields of PMSR */ +#define EEE1G_STS BIT(7) +#define EEE100_STS BIT(6) +#define RX_FC_STS BIT(5) +#define TX_FC_STS BIT(4) +#define MAC_SPD_STS_S 2 +#define MAC_SPD_STS_M 0x0c +#define MAC_DPX_STS BIT(1) +#define MAC_LNK_STS BIT(0) + +/* Values of MAC_SPD_STS */ +#define MAC_SPD_10 0 +#define MAC_SPD_100 1 +#define MAC_SPD_1000 2 +#define MAC_SPD_2500 3 + +/* Values of IPG_CFG */ +#define IPG_96BIT 0 +#define IPG_96BIT_WITH_SHORT_IPG 1 +#define IPG_64BIT 2 + +#define MIB_COUNTER_BASE 0x4000 +#define MIB_COUNTER_PORT_OFFSET 0x100 +#define MIB_COUNTER_REG(p, r) (MIB_COUNTER_BASE + \ + (p) * MIB_COUNTER_PORT_OFFSET + (r)) +#define STATS_TDPC 0x00 +#define STATS_TCRC 0x04 +#define STATS_TUPC 0x08 +#define STATS_TMPC 0x0C +#define STATS_TBPC 0x10 +#define STATS_TCEC 0x14 +#define STATS_TSCEC 0x18 +#define STATS_TMCEC 0x1C +#define STATS_TDEC 0x20 +#define STATS_TLCEC 0x24 +#define STATS_TXCEC 0x28 +#define STATS_TPPC 0x2C +#define STATS_TL64PC 0x30 +#define STATS_TL65PC 0x34 +#define STATS_TL128PC 0x38 +#define STATS_TL256PC 0x3C +#define STATS_TL512PC 0x40 +#define STATS_TL1024PC 0x44 +#define STATS_TOC 0x48 +#define STATS_RDPC 0x60 +#define STATS_RFPC 0x64 +#define STATS_RUPC 0x68 +#define STATS_RMPC 0x6C +#define STATS_RBPC 0x70 +#define STATS_RAEPC 0x74 +#define STATS_RCEPC 0x78 +#define STATS_RUSPC 0x7C +#define STATS_RFEPC 0x80 +#define STATS_ROSPC 0x84 +#define STATS_RJEPC 0x88 +#define STATS_RPPC 0x8C +#define STATS_RL64PC 0x90 +#define STATS_RL65PC 0x94 +#define STATS_RL128PC 0x98 +#define STATS_RL256PC 0x9C +#define STATS_RL512PC 0xA0 +#define STATS_RL1024PC 0xA4 +#define STATS_ROC 0xA8 +#define STATS_RDPC_CTRL 0xB0 +#define STATS_RDPC_ING 0xB4 +#define STATS_RDPC_ARL 0xB8 + +#define SYS_CTRL 0x7000 +#define SW_PHY_RST BIT(2) +#define SW_SYS_RST BIT(1) +#define SW_REG_RST BIT(0) + +#define SYS_INT_EN 0x7008 +#define SYS_INT_STS 0x700c +#define MAC_PC_INT BIT(16) +#define PHY_INT(p) BIT((p) + 8) +#define PHY_LC_INT(p) BIT(p) + +#define PHY_IAC 0x701c +#define PHY_ACS_ST BIT(31) +#define MDIO_REG_ADDR_S 25 +#define MDIO_REG_ADDR_M 0x3e000000 +#define MDIO_PHY_ADDR_S 20 +#define MDIO_PHY_ADDR_M 0x1f00000 +#define MDIO_CMD_S 18 +#define MDIO_CMD_M 0xc0000 +#define MDIO_ST_S 16 +#define MDIO_ST_M 0x30000 +#define MDIO_RW_DATA_S 0 +#define MDIO_RW_DATA_M 0xffff + +/* MDIO_CMD: MDIO commands */ +#define MDIO_CMD_ADDR 0 +#define MDIO_CMD_WRITE 1 +#define MDIO_CMD_READ 2 +#define MDIO_CMD_READ_C45 3 + +/* MDIO_ST: MDIO start field */ +#define MDIO_ST_C45 0 +#define MDIO_ST_C22 1 + +#define HWSTRAP 0x7800 +#define MHWSTRAP 0x7804 + +#endif /* _MT753X_REGS_H_ */ diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c new file mode 100644 index 0000000000..fb2ee1c1b7 --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c @@ -0,0 +1,695 @@ +/* + * OpenWrt swconfig support for MediaTek MT753x Gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mt753x.h" +#include "mt753x_swconfig.h" +#include "mt753x_regs.h" + +#define MT753X_PORT_MIB_TXB_ID 18 /* TxByte */ +#define MT753X_PORT_MIB_RXB_ID 37 /* RxByte */ + +#define MIB_DESC(_s, _o, _n) \ + { \ + .size = (_s), \ + .offset = (_o), \ + .name = (_n), \ + } + +struct mt753x_mib_desc { + unsigned int size; + unsigned int offset; + const char *name; +}; + +static const struct mt753x_mib_desc mt753x_mibs[] = { + MIB_DESC(1, STATS_TDPC, "TxDrop"), + MIB_DESC(1, STATS_TCRC, "TxCRC"), + MIB_DESC(1, STATS_TUPC, "TxUni"), + MIB_DESC(1, STATS_TMPC, "TxMulti"), + MIB_DESC(1, STATS_TBPC, "TxBroad"), + MIB_DESC(1, STATS_TCEC, "TxCollision"), + MIB_DESC(1, STATS_TSCEC, "TxSingleCol"), + MIB_DESC(1, STATS_TMCEC, "TxMultiCol"), + MIB_DESC(1, STATS_TDEC, "TxDefer"), + MIB_DESC(1, STATS_TLCEC, "TxLateCol"), + MIB_DESC(1, STATS_TXCEC, "TxExcCol"), + MIB_DESC(1, STATS_TPPC, "TxPause"), + MIB_DESC(1, STATS_TL64PC, "Tx64Byte"), + MIB_DESC(1, STATS_TL65PC, "Tx65Byte"), + MIB_DESC(1, STATS_TL128PC, "Tx128Byte"), + MIB_DESC(1, STATS_TL256PC, "Tx256Byte"), + MIB_DESC(1, STATS_TL512PC, "Tx512Byte"), + MIB_DESC(1, STATS_TL1024PC, "Tx1024Byte"), + MIB_DESC(2, STATS_TOC, "TxByte"), + MIB_DESC(1, STATS_RDPC, "RxDrop"), + MIB_DESC(1, STATS_RFPC, "RxFiltered"), + MIB_DESC(1, STATS_RUPC, "RxUni"), + MIB_DESC(1, STATS_RMPC, "RxMulti"), + MIB_DESC(1, STATS_RBPC, "RxBroad"), + MIB_DESC(1, STATS_RAEPC, "RxAlignErr"), + MIB_DESC(1, STATS_RCEPC, "RxCRC"), + MIB_DESC(1, STATS_RUSPC, "RxUnderSize"), + MIB_DESC(1, STATS_RFEPC, "RxFragment"), + MIB_DESC(1, STATS_ROSPC, "RxOverSize"), + MIB_DESC(1, STATS_RJEPC, "RxJabber"), + MIB_DESC(1, STATS_RPPC, "RxPause"), + MIB_DESC(1, STATS_RL64PC, "Rx64Byte"), + MIB_DESC(1, STATS_RL65PC, "Rx65Byte"), + MIB_DESC(1, STATS_RL128PC, "Rx128Byte"), + MIB_DESC(1, STATS_RL256PC, "Rx256Byte"), + MIB_DESC(1, STATS_RL512PC, "Rx512Byte"), + MIB_DESC(1, STATS_RL1024PC, "Rx1024Byte"), + MIB_DESC(2, STATS_ROC, "RxByte"), + MIB_DESC(1, STATS_RDPC_CTRL, "RxCtrlDrop"), + MIB_DESC(1, STATS_RDPC_ING, "RxIngDrop"), + MIB_DESC(1, STATS_RDPC_ARL, "RxARLDrop") +}; + +enum { + /* Global attributes. */ + MT753X_ATTR_ENABLE_VLAN, +}; + +struct mt753x_mapping { + char *name; + u16 pvids[MT753X_NUM_PORTS]; + u8 members[MT753X_NUM_VLANS]; + u8 etags[MT753X_NUM_VLANS]; + u16 vids[MT753X_NUM_VLANS]; +} mt753x_defaults[] = { + { + .name = "llllw", + .pvids = { 1, 1, 1, 1, 2, 2, 1 }, + .members = { 0, 0x4f, 0x30 }, + .etags = { 0, 0, 0 }, + .vids = { 0, 1, 2 }, + }, { + .name = "wllll", + .pvids = { 2, 1, 1, 1, 1, 2, 1 }, + .members = { 0, 0x5e, 0x21 }, + .etags = { 0, 0, 0 }, + .vids = { 0, 1, 2 }, + }, { + .name = "lwlll", + .pvids = { 1, 2, 1, 1, 1, 2, 1 }, + .members = { 0, 0x5d, 0x22 }, + .etags = { 0, 0, 0 }, + .vids = { 0, 1, 2 }, + }, +}; + +struct mt753x_mapping *mt753x_find_mapping(struct device_node *np) +{ + const char *map; + int i; + + if (of_property_read_string(np, "mediatek,portmap", &map)) + return NULL; + + for (i = 0; i < ARRAY_SIZE(mt753x_defaults); i++) + if (!strcmp(map, mt753x_defaults[i].name)) + return &mt753x_defaults[i]; + + return NULL; +} + +static void mt753x_apply_mapping(struct gsw_mt753x *gsw, + struct mt753x_mapping *map) +{ + int i = 0; + + for (i = 0; i < MT753X_NUM_PORTS; i++) + gsw->port_entries[i].pvid = map->pvids[i]; + + for (i = 0; i < MT753X_NUM_VLANS; i++) { + gsw->vlan_entries[i].member = map->members[i]; + gsw->vlan_entries[i].etags = map->etags[i]; + gsw->vlan_entries[i].vid = map->vids[i]; + } +} + +static int mt753x_get_vlan_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + val->value.i = gsw->global_vlan_enable; + + return 0; +} + +static int mt753x_set_vlan_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + gsw->global_vlan_enable = val->value.i != 0; + + return 0; +} + +static int mt753x_get_port_pvid(struct switch_dev *dev, int port, int *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + if (port >= MT753X_NUM_PORTS) + return -EINVAL; + + *val = mt753x_reg_read(gsw, PPBV1(port)); + *val &= GRP_PORT_VID_M; + + return 0; +} + +static int mt753x_set_port_pvid(struct switch_dev *dev, int port, int pvid) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + if (port >= MT753X_NUM_PORTS) + return -EINVAL; + + if (pvid < MT753X_MIN_VID || pvid > MT753X_MAX_VID) + return -EINVAL; + + gsw->port_entries[port].pvid = pvid; + + return 0; +} + +static void mt753x_vlan_ctrl(struct gsw_mt753x *gsw, u32 cmd, u32 val) +{ + int i; + + mt753x_reg_write(gsw, VTCR, + VTCR_BUSY | ((cmd << VTCR_FUNC_S) & VTCR_FUNC_M) | + (val & VTCR_VID_M)); + + for (i = 0; i < 300; i++) { + u32 val = mt753x_reg_read(gsw, VTCR); + + if ((val & VTCR_BUSY) == 0) + break; + + usleep_range(1000, 1100); + } + + if (i == 300) + dev_info(gsw->dev, "vtcr timeout\n"); +} + +static int mt753x_get_vlan_ports(struct switch_dev *dev, struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + u32 member; + u32 etags; + int i; + + val->len = 0; + + if (val->port_vlan < 0 || val->port_vlan >= MT753X_NUM_VLANS) + return -EINVAL; + + mt753x_vlan_ctrl(gsw, VTCR_READ_VLAN_ENTRY, val->port_vlan); + + member = mt753x_reg_read(gsw, VAWD1); + member &= PORT_MEM_M; + member >>= PORT_MEM_S; + + etags = mt753x_reg_read(gsw, VAWD2); + + for (i = 0; i < MT753X_NUM_PORTS; i++) { + struct switch_port *p; + int etag; + + if (!(member & BIT(i))) + continue; + + p = &val->value.ports[val->len++]; + p->id = i; + + etag = (etags >> PORT_ETAG_S(i)) & PORT_ETAG_M; + + if (etag == ETAG_CTRL_TAG) + p->flags |= BIT(SWITCH_PORT_FLAG_TAGGED); + else if (etag != ETAG_CTRL_UNTAG) + dev_info(gsw->dev, + "vlan egress tag control neither untag nor tag.\n"); + } + + return 0; +} + +static int mt753x_set_vlan_ports(struct switch_dev *dev, struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + u8 member = 0; + u8 etags = 0; + int i; + + if (val->port_vlan < 0 || val->port_vlan >= MT753X_NUM_VLANS || + val->len > MT753X_NUM_PORTS) + return -EINVAL; + + for (i = 0; i < val->len; i++) { + struct switch_port *p = &val->value.ports[i]; + + if (p->id >= MT753X_NUM_PORTS) + return -EINVAL; + + member |= BIT(p->id); + + if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED)) + etags |= BIT(p->id); + } + + gsw->vlan_entries[val->port_vlan].member = member; + gsw->vlan_entries[val->port_vlan].etags = etags; + + return 0; +} + +static int mt753x_set_vid(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + int vlan; + u16 vid; + + vlan = val->port_vlan; + vid = (u16)val->value.i; + + if (vlan < 0 || vlan >= MT753X_NUM_VLANS) + return -EINVAL; + + if (vid < MT753X_MIN_VID || vid > MT753X_MAX_VID) + return -EINVAL; + + gsw->vlan_entries[vlan].vid = vid; + return 0; +} + +static int mt753x_get_vid(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + val->value.i = val->port_vlan; + return 0; +} + +static int mt753x_get_port_link(struct switch_dev *dev, int port, + struct switch_port_link *link) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + u32 speed, pmsr; + + if (port < 0 || port >= MT753X_NUM_PORTS) + return -EINVAL; + + pmsr = mt753x_reg_read(gsw, PMSR(port)); + + link->link = pmsr & MAC_LNK_STS; + link->duplex = pmsr & MAC_DPX_STS; + speed = (pmsr & MAC_SPD_STS_M) >> MAC_SPD_STS_S; + + switch (speed) { + case MAC_SPD_10: + link->speed = SWITCH_PORT_SPEED_10; + break; + case MAC_SPD_100: + link->speed = SWITCH_PORT_SPEED_100; + break; + case MAC_SPD_1000: + link->speed = SWITCH_PORT_SPEED_1000; + break; + case MAC_SPD_2500: + /* TODO: swconfig has no support for 2500 now */ + link->speed = SWITCH_PORT_SPEED_UNKNOWN; + break; + } + + return 0; +} + +static int mt753x_set_port_link(struct switch_dev *dev, int port, + struct switch_port_link *link) +{ +#ifndef MODULE + if (port >= MT753X_NUM_PHYS) + return -EINVAL; + + return switch_generic_set_link(dev, port, link); +#else + return -ENOTSUPP; +#endif +} + +static u64 get_mib_counter(struct gsw_mt753x *gsw, int i, int port) +{ + unsigned int offset; + u64 lo, hi, hi2; + + offset = mt753x_mibs[i].offset; + + if (mt753x_mibs[i].size == 1) + return mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset)); + + do { + hi = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset + 4)); + lo = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset)); + hi2 = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset + 4)); + } while (hi2 != hi); + + return (hi << 32) | lo; +} + +static int mt753x_get_port_mib(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + static char buf[4096]; + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + int i, len = 0; + + if (val->port_vlan >= MT753X_NUM_PORTS) + return -EINVAL; + + len += snprintf(buf + len, sizeof(buf) - len, + "Port %d MIB counters\n", val->port_vlan); + + for (i = 0; i < ARRAY_SIZE(mt753x_mibs); ++i) { + u64 counter; + + len += snprintf(buf + len, sizeof(buf) - len, + "%-11s: ", mt753x_mibs[i].name); + counter = get_mib_counter(gsw, i, val->port_vlan); + len += snprintf(buf + len, sizeof(buf) - len, "%llu\n", + counter); + } + + val->value.s = buf; + val->len = len; + return 0; +} + +static int mt753x_get_port_stats(struct switch_dev *dev, int port, + struct switch_port_stats *stats) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + if (port < 0 || port >= MT753X_NUM_PORTS) + return -EINVAL; + + stats->tx_bytes = get_mib_counter(gsw, MT753X_PORT_MIB_TXB_ID, port); + stats->rx_bytes = get_mib_counter(gsw, MT753X_PORT_MIB_RXB_ID, port); + + return 0; +} + +static void mt753x_port_isolation(struct gsw_mt753x *gsw) +{ + int i; + + for (i = 0; i < MT753X_NUM_PORTS; i++) + mt753x_reg_write(gsw, PCR(i), + BIT(gsw->cpu_port) << PORT_MATRIX_S); + + mt753x_reg_write(gsw, PCR(gsw->cpu_port), PORT_MATRIX_M); + + for (i = 0; i < MT753X_NUM_PORTS; i++) + mt753x_reg_write(gsw, PVC(i), + (0x8100 << STAG_VPID_S) | + (VA_TRANSPARENT_PORT << VLAN_ATTR_S)); +} + +static void mt753x_write_vlan_entry(struct gsw_mt753x *gsw, int vlan, u16 vid, + u8 ports, u8 etags) +{ + int port; + u32 val; + + /* vlan port membership */ + if (ports) + mt753x_reg_write(gsw, VAWD1, + IVL_MAC | VTAG_EN | VENTRY_VALID | + ((ports << PORT_MEM_S) & PORT_MEM_M)); + else + mt753x_reg_write(gsw, VAWD1, 0); + + /* egress mode */ + val = 0; + for (port = 0; port < MT753X_NUM_PORTS; port++) { + if (etags & BIT(port)) + val |= ETAG_CTRL_TAG << PORT_ETAG_S(port); + else + val |= ETAG_CTRL_UNTAG << PORT_ETAG_S(port); + } + mt753x_reg_write(gsw, VAWD2, val); + + /* write to vlan table */ + mt753x_vlan_ctrl(gsw, VTCR_WRITE_VLAN_ENTRY, vid); +} + +static int mt753x_apply_config(struct switch_dev *dev) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + int i, j; + u8 tag_ports; + u8 untag_ports; + + if (!gsw->global_vlan_enable) { + mt753x_port_isolation(gsw); + return 0; + } + + /* set all ports as security mode */ + for (i = 0; i < MT753X_NUM_PORTS; i++) + mt753x_reg_write(gsw, PCR(i), + PORT_MATRIX_M | SECURITY_MODE); + + /* check if a port is used in tag/untag vlan egress mode */ + tag_ports = 0; + untag_ports = 0; + + for (i = 0; i < MT753X_NUM_VLANS; i++) { + u8 member = gsw->vlan_entries[i].member; + u8 etags = gsw->vlan_entries[i].etags; + + if (!member) + continue; + + for (j = 0; j < MT753X_NUM_PORTS; j++) { + if (!(member & BIT(j))) + continue; + + if (etags & BIT(j)) + tag_ports |= 1u << j; + else + untag_ports |= 1u << j; + } + } + + /* set all untag-only ports as transparent and the rest as user port */ + for (i = 0; i < MT753X_NUM_PORTS; i++) { + u32 pvc_mode = 0x8100 << STAG_VPID_S; + + if (untag_ports & BIT(i) && !(tag_ports & BIT(i))) + pvc_mode = (0x8100 << STAG_VPID_S) | + (VA_TRANSPARENT_PORT << VLAN_ATTR_S); + + mt753x_reg_write(gsw, PVC(i), pvc_mode); + } + + /* first clear the swtich vlan table */ + for (i = 0; i < MT753X_NUM_VLANS; i++) + mt753x_write_vlan_entry(gsw, i, i, 0, 0); + + /* now program only vlans with members to avoid + * clobbering remapped entries in later iterations + */ + for (i = 0; i < MT753X_NUM_VLANS; i++) { + u16 vid = gsw->vlan_entries[i].vid; + u8 member = gsw->vlan_entries[i].member; + u8 etags = gsw->vlan_entries[i].etags; + + if (member) + mt753x_write_vlan_entry(gsw, i, vid, member, etags); + } + + /* Port Default PVID */ + for (i = 0; i < MT753X_NUM_PORTS; i++) { + int vlan = gsw->port_entries[i].pvid; + u16 pvid = 0; + u32 val; + + if (vlan < MT753X_NUM_VLANS && gsw->vlan_entries[vlan].member) + pvid = gsw->vlan_entries[vlan].vid; + + val = mt753x_reg_read(gsw, PPBV1(i)); + val &= ~GRP_PORT_VID_M; + val |= pvid; + mt753x_reg_write(gsw, PPBV1(i), val); + } + + return 0; +} + +static int mt753x_reset_switch(struct switch_dev *dev) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + int i; + + memset(gsw->port_entries, 0, sizeof(gsw->port_entries)); + memset(gsw->vlan_entries, 0, sizeof(gsw->vlan_entries)); + + /* set default vid of each vlan to the same number of vlan, so the vid + * won't need be set explicitly. + */ + for (i = 0; i < MT753X_NUM_VLANS; i++) + gsw->vlan_entries[i].vid = i; + + return 0; +} + +static int mt753x_phy_read16(struct switch_dev *dev, int addr, u8 reg, + u16 *value) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + *value = gsw->mii_read(gsw, addr, reg); + + return 0; +} + +static int mt753x_phy_write16(struct switch_dev *dev, int addr, u8 reg, + u16 value) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + gsw->mii_write(gsw, addr, reg, value); + + return 0; +} + +static const struct switch_attr mt753x_global[] = { + { + .type = SWITCH_TYPE_INT, + .name = "enable_vlan", + .description = "VLAN mode (1:enabled)", + .max = 1, + .id = MT753X_ATTR_ENABLE_VLAN, + .get = mt753x_get_vlan_enable, + .set = mt753x_set_vlan_enable, + } +}; + +static const struct switch_attr mt753x_port[] = { + { + .type = SWITCH_TYPE_STRING, + .name = "mib", + .description = "Get MIB counters for port", + .get = mt753x_get_port_mib, + .set = NULL, + }, +}; + +static const struct switch_attr mt753x_vlan[] = { + { + .type = SWITCH_TYPE_INT, + .name = "vid", + .description = "VLAN ID (0-4094)", + .set = mt753x_set_vid, + .get = mt753x_get_vid, + .max = 4094, + }, +}; + +static const struct switch_dev_ops mt753x_swdev_ops = { + .attr_global = { + .attr = mt753x_global, + .n_attr = ARRAY_SIZE(mt753x_global), + }, + .attr_port = { + .attr = mt753x_port, + .n_attr = ARRAY_SIZE(mt753x_port), + }, + .attr_vlan = { + .attr = mt753x_vlan, + .n_attr = ARRAY_SIZE(mt753x_vlan), + }, + .get_vlan_ports = mt753x_get_vlan_ports, + .set_vlan_ports = mt753x_set_vlan_ports, + .get_port_pvid = mt753x_get_port_pvid, + .set_port_pvid = mt753x_set_port_pvid, + .get_port_link = mt753x_get_port_link, + .set_port_link = mt753x_set_port_link, + .get_port_stats = mt753x_get_port_stats, + .apply_config = mt753x_apply_config, + .reset_switch = mt753x_reset_switch, + .phy_read16 = mt753x_phy_read16, + .phy_write16 = mt753x_phy_write16, +}; + +int mt753x_swconfig_init(struct gsw_mt753x *gsw) +{ + struct device_node *np = gsw->dev->of_node; + struct switch_dev *swdev; + struct mt753x_mapping *map; + int ret; + + if (of_property_read_u32(np, "mediatek,cpuport", &gsw->cpu_port)) + gsw->cpu_port = MT753X_DFL_CPU_PORT; + + swdev = &gsw->swdev; + + swdev->name = gsw->name; + swdev->alias = gsw->name; + swdev->cpu_port = gsw->cpu_port; + swdev->ports = MT753X_NUM_PORTS; + swdev->vlans = MT753X_NUM_VLANS; + swdev->ops = &mt753x_swdev_ops; + + ret = register_switch(swdev, NULL); + if (ret) { + dev_err(gsw->dev, "Failed to register switch %s\n", + swdev->name); + return ret; + } + + map = mt753x_find_mapping(gsw->dev->of_node); + if (map) + mt753x_apply_mapping(gsw, map); + mt753x_apply_config(swdev); + + return 0; +} + +void mt753x_swconfig_destroy(struct gsw_mt753x *gsw) +{ + unregister_switch(&gsw->swdev); +} diff --git a/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.h b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.h new file mode 100644 index 0000000000..971a2cc90a --- /dev/null +++ b/target/linux/mediatek/files-4.19/drivers/net/phy/mtk/mt753x/mt753x_swconfig.h @@ -0,0 +1,19 @@ +/* + * OpenWrt swconfig support for MediaTek MT753x Gigabit switch + * + * Copyright (C) 2018 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _MT753X_SWCONFIG_H_ +#define _MT753X_SWCONFIG_H_ + +#include + +int mt753x_swconfig_init(struct gsw_mt753x *gsw); +void mt753x_swconfig_destroy(struct gsw_mt753x *gsw); + +#endif /* _MT753X_SWCONFIG_H_ */ -- cgit v1.2.3