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Message-Id: <20230524091722.522118-2-jiawenwu@trustnetic.com> Date: Wed, 24 May 2023 17:17:14 +0800 From: Jiawen Wu <jiawenwu@...stnetic.com> To: netdev@...r.kernel.org, jarkko.nikula@...ux.intel.com, andriy.shevchenko@...ux.intel.com, mika.westerberg@...ux.intel.com, jsd@...ihalf.com, Jose.Abreu@...opsys.com, andrew@...n.ch, hkallweit1@...il.com, linux@...linux.org.uk Cc: linux-i2c@...r.kernel.org, linux-gpio@...r.kernel.org, mengyuanlou@...-swift.com, Jiawen Wu <jiawenwu@...stnetic.com>, Piotr Raczynski <piotr.raczynski@...el.com> Subject: [PATCH net-next v9 1/9] net: txgbe: Add software nodes to support phylink Register software nodes for GPIO, I2C, SFP and PHYLINK. Define the device properties. Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com> Reviewed-by: Andrew Lunn <andrew@...n.ch> Reviewed-by: Piotr Raczynski <piotr.raczynski@...el.com> --- drivers/net/ethernet/wangxun/libwx/wx_type.h | 1 + drivers/net/ethernet/wangxun/txgbe/Makefile | 1 + .../net/ethernet/wangxun/txgbe/txgbe_main.c | 22 ++++- .../net/ethernet/wangxun/txgbe/txgbe_phy.c | 89 +++++++++++++++++++ .../net/ethernet/wangxun/txgbe/txgbe_phy.h | 10 +++ .../net/ethernet/wangxun/txgbe/txgbe_type.h | 49 ++++++++++ 6 files changed, 171 insertions(+), 1 deletion(-) create mode 100644 drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c create mode 100644 drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h diff --git a/drivers/net/ethernet/wangxun/libwx/wx_type.h b/drivers/net/ethernet/wangxun/libwx/wx_type.h index cbe7f184b50e..f59066d7375c 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_type.h +++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h @@ -611,6 +611,7 @@ enum wx_isb_idx { struct wx { u8 __iomem *hw_addr; + void *priv; struct pci_dev *pdev; struct net_device *netdev; struct wx_bus_info bus; diff --git a/drivers/net/ethernet/wangxun/txgbe/Makefile b/drivers/net/ethernet/wangxun/txgbe/Makefile index 6db14a2cb2d0..7507f762edfe 100644 --- a/drivers/net/ethernet/wangxun/txgbe/Makefile +++ b/drivers/net/ethernet/wangxun/txgbe/Makefile @@ -8,4 +8,5 @@ obj-$(CONFIG_TXGBE) += txgbe.o txgbe-objs := txgbe_main.o \ txgbe_hw.o \ + txgbe_phy.o \ txgbe_ethtool.o diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c index 5b8a121fb496..e10296abf5b4 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c @@ -15,6 +15,7 @@ #include "../libwx/wx_hw.h" #include "txgbe_type.h" #include "txgbe_hw.h" +#include "txgbe_phy.h" #include "txgbe_ethtool.h" char txgbe_driver_name[] = "txgbe"; @@ -513,6 +514,7 @@ static int txgbe_probe(struct pci_dev *pdev, struct net_device *netdev; int err, expected_gts; struct wx *wx = NULL; + struct txgbe *txgbe; u16 eeprom_verh = 0, eeprom_verl = 0, offset = 0; u16 eeprom_cfg_blkh = 0, eeprom_cfg_blkl = 0; @@ -663,10 +665,23 @@ static int txgbe_probe(struct pci_dev *pdev, "0x%08x", etrack_id); } - err = register_netdev(netdev); + txgbe = devm_kzalloc(&pdev->dev, sizeof(*txgbe), GFP_KERNEL); + if (!txgbe) { + err = -ENOMEM; + goto err_release_hw; + } + + txgbe->wx = wx; + wx->priv = txgbe; + + err = txgbe_init_phy(txgbe); if (err) goto err_release_hw; + err = register_netdev(netdev); + if (err) + goto err_remove_phy; + pci_set_drvdata(pdev, wx); netif_tx_stop_all_queues(netdev); @@ -694,6 +709,8 @@ static int txgbe_probe(struct pci_dev *pdev, return 0; +err_remove_phy: + txgbe_remove_phy(txgbe); err_release_hw: wx_clear_interrupt_scheme(wx); wx_control_hw(wx, false); @@ -719,11 +736,14 @@ static int txgbe_probe(struct pci_dev *pdev, static void txgbe_remove(struct pci_dev *pdev) { struct wx *wx = pci_get_drvdata(pdev); + struct txgbe *txgbe = wx->priv; struct net_device *netdev; netdev = wx->netdev; unregister_netdev(netdev); + txgbe_remove_phy(txgbe); + pci_release_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_MEM)); diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c new file mode 100644 index 000000000000..be4b5ad74a3c --- /dev/null +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */ + +#include <linux/gpio/property.h> +#include <linux/i2c.h> +#include <linux/pci.h> + +#include "../libwx/wx_type.h" +#include "txgbe_type.h" +#include "txgbe_phy.h" + +static int txgbe_swnodes_register(struct txgbe *txgbe) +{ + struct txgbe_nodes *nodes = &txgbe->nodes; + struct pci_dev *pdev = txgbe->wx->pdev; + struct software_node *swnodes; + u32 id; + + id = (pdev->bus->number << 8) | pdev->devfn; + + snprintf(nodes->gpio_name, sizeof(nodes->gpio_name), "txgbe_gpio-%x", id); + snprintf(nodes->i2c_name, sizeof(nodes->i2c_name), "txgbe_i2c-%x", id); + snprintf(nodes->sfp_name, sizeof(nodes->sfp_name), "txgbe_sfp-%x", id); + snprintf(nodes->phylink_name, sizeof(nodes->phylink_name), "txgbe_phylink-%x", id); + + swnodes = nodes->swnodes; + + /* GPIO 0: tx fault + * GPIO 1: tx disable + * GPIO 2: sfp module absent + * GPIO 3: rx signal lost + * GPIO 4: rate select, 1G(0) 10G(1) + * GPIO 5: rate select, 1G(0) 10G(1) + */ + nodes->gpio_props[0] = PROPERTY_ENTRY_STRING("pinctrl-names", "default"); + swnodes[SWNODE_GPIO] = NODE_PROP(nodes->gpio_name, nodes->gpio_props); + nodes->gpio0_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 0, GPIO_ACTIVE_HIGH); + nodes->gpio1_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 1, GPIO_ACTIVE_HIGH); + nodes->gpio2_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 2, GPIO_ACTIVE_LOW); + nodes->gpio3_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 3, GPIO_ACTIVE_HIGH); + nodes->gpio4_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 4, GPIO_ACTIVE_HIGH); + nodes->gpio5_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 5, GPIO_ACTIVE_HIGH); + + nodes->i2c_props[0] = PROPERTY_ENTRY_STRING("compatible", "snps,designware-i2c"); + nodes->i2c_props[1] = PROPERTY_ENTRY_BOOL("wx,i2c-snps-model"); + nodes->i2c_props[2] = PROPERTY_ENTRY_U32("clock-frequency", I2C_MAX_STANDARD_MODE_FREQ); + swnodes[SWNODE_I2C] = NODE_PROP(nodes->i2c_name, nodes->i2c_props); + nodes->i2c_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_I2C]); + + nodes->sfp_props[0] = PROPERTY_ENTRY_STRING("compatible", "sff,sfp"); + nodes->sfp_props[1] = PROPERTY_ENTRY_REF_ARRAY("i2c-bus", nodes->i2c_ref); + nodes->sfp_props[2] = PROPERTY_ENTRY_REF_ARRAY("tx-fault-gpios", nodes->gpio0_ref); + nodes->sfp_props[3] = PROPERTY_ENTRY_REF_ARRAY("tx-disable-gpios", nodes->gpio1_ref); + nodes->sfp_props[4] = PROPERTY_ENTRY_REF_ARRAY("mod-def0-gpios", nodes->gpio2_ref); + nodes->sfp_props[5] = PROPERTY_ENTRY_REF_ARRAY("los-gpios", nodes->gpio3_ref); + nodes->sfp_props[6] = PROPERTY_ENTRY_REF_ARRAY("rate-select1-gpios", nodes->gpio4_ref); + nodes->sfp_props[7] = PROPERTY_ENTRY_REF_ARRAY("rate-select0-gpios", nodes->gpio5_ref); + swnodes[SWNODE_SFP] = NODE_PROP(nodes->sfp_name, nodes->sfp_props); + nodes->sfp_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_SFP]); + + nodes->phylink_props[0] = PROPERTY_ENTRY_STRING("managed", "in-band-status"); + nodes->phylink_props[1] = PROPERTY_ENTRY_REF_ARRAY("sfp", nodes->sfp_ref); + swnodes[SWNODE_PHYLINK] = NODE_PROP(nodes->phylink_name, nodes->phylink_props); + + nodes->group[SWNODE_GPIO] = &swnodes[SWNODE_GPIO]; + nodes->group[SWNODE_I2C] = &swnodes[SWNODE_I2C]; + nodes->group[SWNODE_SFP] = &swnodes[SWNODE_SFP]; + nodes->group[SWNODE_PHYLINK] = &swnodes[SWNODE_PHYLINK]; + + return software_node_register_node_group(nodes->group); +} + +int txgbe_init_phy(struct txgbe *txgbe) +{ + int ret; + + ret = txgbe_swnodes_register(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to register software nodes\n"); + return ret; + } + + return 0; +} + +void txgbe_remove_phy(struct txgbe *txgbe) +{ + software_node_unregister_node_group(txgbe->nodes.group); +} diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h new file mode 100644 index 000000000000..1ab592124986 --- /dev/null +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */ + +#ifndef _TXGBE_PHY_H_ +#define _TXGBE_PHY_H_ + +int txgbe_init_phy(struct txgbe *txgbe); +void txgbe_remove_phy(struct txgbe *txgbe); + +#endif /* _TXGBE_NODE_H_ */ diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h index 63a1c733718d..5bef0f9df523 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h @@ -4,6 +4,8 @@ #ifndef _TXGBE_TYPE_H_ #define _TXGBE_TYPE_H_ +#include <linux/property.h> + /* Device IDs */ #define TXGBE_DEV_ID_SP1000 0x1001 #define TXGBE_DEV_ID_WX1820 0x2001 @@ -99,4 +101,51 @@ extern char txgbe_driver_name[]; +static inline struct txgbe *netdev_to_txgbe(struct net_device *netdev) +{ + struct wx *wx = netdev_priv(netdev); + + return wx->priv; +} + +#define NODE_PROP(_NAME, _PROP) \ + (const struct software_node) { \ + .name = _NAME, \ + .properties = _PROP, \ + } + +enum txgbe_swnodes { + SWNODE_GPIO = 0, + SWNODE_I2C, + SWNODE_SFP, + SWNODE_PHYLINK, + SWNODE_MAX +}; + +struct txgbe_nodes { + char gpio_name[32]; + char i2c_name[32]; + char sfp_name[32]; + char phylink_name[32]; + struct property_entry gpio_props[1]; + struct property_entry i2c_props[3]; + struct property_entry sfp_props[8]; + struct property_entry phylink_props[2]; + struct software_node_ref_args i2c_ref[1]; + struct software_node_ref_args gpio0_ref[1]; + struct software_node_ref_args gpio1_ref[1]; + struct software_node_ref_args gpio2_ref[1]; + struct software_node_ref_args gpio3_ref[1]; + struct software_node_ref_args gpio4_ref[1]; + struct software_node_ref_args gpio5_ref[1]; + struct software_node_ref_args sfp_ref[1]; + struct software_node swnodes[SWNODE_MAX]; + const struct software_node *group[SWNODE_MAX + 1]; +}; + +struct txgbe { + struct wx *wx; + struct txgbe_nodes nodes; +}; + #endif /* _TXGBE_TYPE_H_ */ -- 2.27.0
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