From nobody Wed Oct 8 03:46:33 2025 Received: from azure-sdnproxy.icoremail.net (azure-sdnproxy.icoremail.net [13.75.44.102]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 51AA12AE99; Thu, 3 Jul 2025 09:20:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.75.44.102 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751534440; cv=none; b=HrwegPP8aa8e7D1rpBqt4SBl02BPp0QBwWL+AFFzBZhGEqLwHI0x3pE9gnQSiRD6MSzcFF7jUn7A0XhsICAohZwMhPkiCNIclOHXouz318qG6F1/j3cbrcjxXWkn23V2d/+uNnaQj/Ooj13eedJbqRoxOjXqLCh3RpPViXsLXYI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751534440; c=relaxed/simple; bh=yBbGiRxgQimXTNNjn7F2XsN6K4CH0wsGA5NaTmeL7Yw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=iXpYgPdyPZmbBtkA9FwkTY+lMhbSAvBMBV9tqmVZSinZL32IPkiVVIZmS/56bWgs9oJg062Bs0siCuEdjZPoYtI5KRy2YkGlY1tNhAEi+4vZxadJrDfpkOBI8rtNOgvIshNiMmdNJSRWIWU2rUE1839RpeXcyl7S4obVUCc0ZLc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com; spf=pass smtp.mailfrom=eswincomputing.com; arc=none smtp.client-ip=13.75.44.102 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=eswincomputing.com Received: from E0005182LT.eswin.cn (unknown [10.12.96.155]) by app2 (Coremail) with SMTP id TQJkCgDXaJJQS2Zocl+oAA--.41647S2; Thu, 03 Jul 2025 17:20:19 +0800 (CST) From: weishangjuan@eswincomputing.com To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, rmk+kernel@armlinux.org.uk, yong.liang.choong@linux.intel.com, vladimir.oltean@nxp.com, jszhang@kernel.org, jan.petrous@oss.nxp.com, prabhakar.mahadev-lad.rj@bp.renesas.com, inochiama@gmail.com, boon.khai.ng@altera.com, dfustini@tenstorrent.com, 0x1207@gmail.com, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Cc: ningyu@eswincomputing.com, linmin@eswincomputing.com, lizhi2@eswincomputing.com, Shangjuan Wei Subject: [PATCH v3 2/2] ethernet: eswin: Add eic7700 ethernet driver Date: Thu, 3 Jul 2025 17:20:15 +0800 Message-Id: <20250703092015.1200-1-weishangjuan@eswincomputing.com> X-Mailer: git-send-email 2.31.1.windows.1 In-Reply-To: <20250703091808.1092-1-weishangjuan@eswincomputing.com> References: <20250703091808.1092-1-weishangjuan@eswincomputing.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: TQJkCgDXaJJQS2Zocl+oAA--.41647S2 X-Coremail-Antispam: 1UD129KBjvJXoW3tF45CrWxKr1rZr1fGrWfXwb_yoWkWr4rpa y8Aa45trnrAr1xG3ykJF48Ga4F9w12ga1fuF93tFn3ZFWayrZ8W3s5tFyakFyDKr9xZr13 Gw4UAFyfuF1q9rDanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBl14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1lw4CEc2x0rVAKj4xxMxkF7I0En4kS14v26r4a6rW5MxkIecxEwVCm-wCF04 k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18 MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr4 1lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1U MIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I 8E87Iv6xkF7I0E14v26r4UJVWxJrUvcSsGvfC2KfnxnUUI43ZEXa7sRiWrW5UUUUU== X-CM-SenderInfo: pzhl2xxdqjy31dq6v25zlqu0xpsx3x1qjou0bp/ Content-Type: text/plain; charset="utf-8" From: Shangjuan Wei Add Ethernet controller support for Eswin's eic7700 SoC. The driver provides management and control of Ethernet signals for the eiC7700 series chips. Signed-off-by: Zhi Li Signed-off-by: Shangjuan Wei --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 + drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../ethernet/stmicro/stmmac/dwmac-eic7700.c | 257 ++++++++++++++++++ 3 files changed, 269 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethe= rnet/stmicro/stmmac/Kconfig index 67fa879b1e52..a13b15ce1abd 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -67,6 +67,17 @@ config DWMAC_ANARION This selects the Anarion SoC glue layer support for the stmmac driver. +config DWMAC_EIC7700 + tristate "Support for Eswin eic7700 ethernet driver" + select CRC32 + select MII + depends on OF && HAS_DMA && ARCH_ESWIN || COMPILE_TEST + help + This driver supports the Eswin EIC7700 Ethernet controller, + which integrates Synopsys DesignWare QoS features. It enables + high-speed networking with DMA acceleration and is optimized + for embedded systems. + config DWMAC_INGENIC tristate "Ingenic MAC support" default MACH_INGENIC diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/eth= ernet/stmicro/stmmac/Makefile index b591d93f8503..f4ec5fc16571 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -14,6 +14,7 @@ stmmac-$(CONFIG_STMMAC_SELFTESTS) +=3D stmmac_selftests.o # Ordering matters. Generic driver must be last. obj-$(CONFIG_STMMAC_PLATFORM) +=3D stmmac-platform.o obj-$(CONFIG_DWMAC_ANARION) +=3D dwmac-anarion.o +obj-$(CONFIG_DWMAC_EIC7700) +=3D dwmac-eic7700.o obj-$(CONFIG_DWMAC_INGENIC) +=3D dwmac-ingenic.o obj-$(CONFIG_DWMAC_IPQ806X) +=3D dwmac-ipq806x.o obj-$(CONFIG_DWMAC_LPC18XX) +=3D dwmac-lpc18xx.o diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c b/drivers/= net/ethernet/stmicro/stmmac/dwmac-eic7700.c new file mode 100644 index 000000000000..000362e9987d --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c @@ -0,0 +1,257 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Eswin DWC Ethernet linux driver + * + * Copyright 2025, Beijing ESWIN Computing Technology Co., Ltd. + * + * Authors: + * Shuang Liang + * Shangjuan Wei + */ + +#include +#include +#include +#include +#include + +#include "stmmac_platform.h" + +/* eth_phy_ctrl_offset eth0:0x100; eth1:0x200 */ +#define EIC7700_ETH_TX_CLK_SEL BIT(16) +#define EIC7700_ETH_PHY_INTF_SELI BIT(0) + +/* eth_axi_lp_ctrl_offset eth0:0x108; eth1:0x208 */ +#define EIC7700_ETH_CSYSREQ_VAL BIT(0) + +/* hsp_aclk_ctrl_offset (0x148) */ +#define EIC7700_HSP_ACLK_CLKEN BIT(31) +#define EIC7700_HSP_ACLK_DIVSOR (0x2 << 4) + +/* hsp_cfg_ctrl_offset (0x14c) */ +#define EIC7700_HSP_CFG_CLKEN BIT(31) +#define EIC7700_SCU_HSP_PCLK_EN BIT(30) +#define EIC7700_HSP_CFG_CTRL_REGSET (EIC7700_HSP_CFG_CLKEN | EIC7700_SCU_H= SP_PCLK_EN) + +/* TX/RX clock delay (unit: 0.1ns per bit) */ +#define EIC7700_ETH_TX_ADJ_DELAY GENMASK(14, 8) +#define EIC7700_ETH_RX_ADJ_DELAY GENMASK(30, 24) + +/* Default delay value*/ +#define EIC7700_DELAY_VALUE0 0x20202020 +#define EIC7700_DELAY_VALUE1 0x96205A20 + +struct eic7700_qos_priv { + struct device *dev; + struct regmap *crg_regmap; + struct regmap *hsp_regmap; + u32 tx_delay_ps; + u32 rx_delay_ps; + u32 dly_hsp_reg[3]; + u32 dly_param_1000m[3]; + u32 dly_param_100m[3]; + u32 dly_param_10m[3]; +}; + +static inline void eic7700_set_delay(u32 rx_ps, u32 tx_ps, u32 *reg) +{ + u32 rx_val =3D rx_ps / 100; + + if (rx_val > 0x7F) + rx_val =3D 0x7F; + + *reg &=3D ~EIC7700_ETH_RX_ADJ_DELAY; + *reg |=3D (rx_val << 24) & EIC7700_ETH_RX_ADJ_DELAY; + + u32 tx_val =3D tx_ps / 100; + + if (tx_val > 0x7F) + tx_val =3D 0x7F; + + *reg &=3D ~EIC7700_ETH_TX_ADJ_DELAY; + *reg |=3D (tx_val << 8) & EIC7700_ETH_TX_ADJ_DELAY; +} + +static void eic7700_qos_fix_speed(void *priv, int speed, u32 mode) +{ + struct eic7700_qos_priv *dwc_priv =3D priv; + int i; + + switch (speed) { + case SPEED_1000: + for (i =3D 0; i < 3; i++) + regmap_write(dwc_priv->hsp_regmap, + dwc_priv->dly_hsp_reg[i], + dwc_priv->dly_param_1000m[i]); + break; + case SPEED_100: + for (i =3D 0; i < 3; i++) { + regmap_write(dwc_priv->hsp_regmap, + dwc_priv->dly_hsp_reg[i], + dwc_priv->dly_param_100m[i]); + } + break; + case SPEED_10: + for (i =3D 0; i < 3; i++) { + regmap_write(dwc_priv->hsp_regmap, + dwc_priv->dly_hsp_reg[i], + dwc_priv->dly_param_10m[i]); + } + break; + default: + dev_err(dwc_priv->dev, "invalid speed %u\n", speed); + break; + } +} + +static int eic7700_dwmac_probe(struct platform_device *pdev) +{ + struct plat_stmmacenet_data *plat_dat; + struct stmmac_resources stmmac_res; + struct eic7700_qos_priv *dwc_priv; + u32 hsp_aclk_ctrl_offset; + u32 hsp_aclk_ctrl_regset; + u32 hsp_cfg_ctrl_offset; + u32 eth_axi_lp_ctrl_offset; + u32 eth_phy_ctrl_offset; + u32 eth_phy_ctrl_regset; + bool has_rx_dly =3D false; + bool has_tx_dly =3D false; + int ret; + + ret =3D stmmac_get_platform_resources(pdev, &stmmac_res); + if (ret) + return dev_err_probe(&pdev->dev, ret, + "failed to get resources\n"); + + plat_dat =3D devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return dev_err_probe(&pdev->dev, PTR_ERR(plat_dat), + "dt configuration failed\n"); + + dwc_priv =3D devm_kzalloc(&pdev->dev, sizeof(*dwc_priv), GFP_KERNEL); + if (!dwc_priv) + return -ENOMEM; + + dwc_priv->dev =3D &pdev->dev; + dwc_priv->dly_param_1000m[0] =3D EIC7700_DELAY_VALUE0; + dwc_priv->dly_param_1000m[1] =3D EIC7700_DELAY_VALUE1; + dwc_priv->dly_param_1000m[2] =3D EIC7700_DELAY_VALUE0; + dwc_priv->dly_param_100m[0] =3D EIC7700_DELAY_VALUE0; + dwc_priv->dly_param_100m[1] =3D EIC7700_DELAY_VALUE1; + dwc_priv->dly_param_100m[2] =3D EIC7700_DELAY_VALUE0; + dwc_priv->dly_param_10m[0] =3D 0x0; + dwc_priv->dly_param_10m[1] =3D 0x0; + dwc_priv->dly_param_10m[2] =3D 0x0; + + ret =3D of_property_read_u32(pdev->dev.of_node, "rx-internal-delay-ps", + &dwc_priv->rx_delay_ps); + if (ret) + dev_dbg(&pdev->dev, "can't get rx-internal-delay-ps, ret(%d).", ret); + else + has_rx_dly =3D true; + + ret =3D of_property_read_u32(pdev->dev.of_node, "tx-internal-delay-ps", + &dwc_priv->tx_delay_ps); + if (ret) + dev_dbg(&pdev->dev, "can't get tx-internal-delay-ps, ret(%d).", ret); + else + has_tx_dly =3D true; + if (has_rx_dly && has_tx_dly) { + eic7700_set_delay(dwc_priv->rx_delay_ps, dwc_priv->tx_delay_ps, + &dwc_priv->dly_param_1000m[1]); + eic7700_set_delay(dwc_priv->rx_delay_ps, dwc_priv->tx_delay_ps, + &dwc_priv->dly_param_100m[1]); + eic7700_set_delay(dwc_priv->rx_delay_ps, dwc_priv->tx_delay_ps, + &dwc_priv->dly_param_10m[1]); + } else { + dev_dbg(&pdev->dev, " use default dly\n"); + } + + ret =3D of_property_read_variable_u32_array(pdev->dev.of_node, "eswin,dly= _hsp_reg", + &dwc_priv->dly_hsp_reg[0], 3, 0); + if (ret !=3D 3) { + dev_err(&pdev->dev, "can't get delay hsp reg.ret(%d)\n", ret); + return ret; + } + + dwc_priv->crg_regmap =3D syscon_regmap_lookup_by_phandle(pdev->dev.of_nod= e, + "eswin,syscrg_csr"); + if (IS_ERR(dwc_priv->crg_regmap)) + return dev_err_probe(&pdev->dev, PTR_ERR(dwc_priv->crg_regmap), + "Failed to get syscrg_csr regmap\n"); + + ret =3D of_property_read_u32_index(pdev->dev.of_node, "eswin,syscrg_csr",= 1, + &hsp_aclk_ctrl_offset); + if (ret) + return dev_err_probe(&pdev->dev, ret, "can't get hsp_aclk_ctrl_offset\n"= ); + + regmap_read(dwc_priv->crg_regmap, hsp_aclk_ctrl_offset, &hsp_aclk_ctrl_re= gset); + hsp_aclk_ctrl_regset |=3D (EIC7700_HSP_ACLK_CLKEN | EIC7700_HSP_ACLK_DIVS= OR); + regmap_write(dwc_priv->crg_regmap, hsp_aclk_ctrl_offset, hsp_aclk_ctrl_re= gset); + + ret =3D of_property_read_u32_index(pdev->dev.of_node, "eswin,syscrg_csr",= 2, + &hsp_cfg_ctrl_offset); + if (ret) + return dev_err_probe(&pdev->dev, ret, "can't get hsp_cfg_ctrl_offset\n"); + + regmap_write(dwc_priv->crg_regmap, hsp_cfg_ctrl_offset, EIC7700_HSP_CFG_C= TRL_REGSET); + + dwc_priv->hsp_regmap =3D syscon_regmap_lookup_by_phandle(pdev->dev.of_nod= e, + "eswin,hsp_sp_csr"); + if (IS_ERR(dwc_priv->hsp_regmap)) + return dev_err_probe(&pdev->dev, PTR_ERR(dwc_priv->hsp_regmap), + "Failed to get hsp_sp_csr regmap\n"); + + ret =3D of_property_read_u32_index(pdev->dev.of_node, "eswin,hsp_sp_csr",= 2, + ð_phy_ctrl_offset); + if (ret) + return dev_err_probe(&pdev->dev, ret, "can't get eth_phy_ctrl_offset\n"); + + regmap_read(dwc_priv->hsp_regmap, eth_phy_ctrl_offset, ð_phy_ctrl_regs= et); + eth_phy_ctrl_regset |=3D (EIC7700_ETH_TX_CLK_SEL | EIC7700_ETH_PHY_INTF_S= ELI); + regmap_write(dwc_priv->hsp_regmap, eth_phy_ctrl_offset, eth_phy_ctrl_regs= et); + + ret =3D of_property_read_u32_index(pdev->dev.of_node, "eswin,hsp_sp_csr",= 3, + ð_axi_lp_ctrl_offset); + if (ret) + return dev_err_probe(&pdev->dev, ret, "can't get eth_axi_lp_ctrl_offset\= n"); + + regmap_write(dwc_priv->hsp_regmap, eth_axi_lp_ctrl_offset, EIC7700_ETH_CS= YSREQ_VAL); + + plat_dat->clk_tx_i =3D devm_clk_get_enabled(&pdev->dev, "tx"); + if (IS_ERR(plat_dat->clk_tx_i)) + return dev_err_probe(&pdev->dev, PTR_ERR(plat_dat->clk_tx_i), + "error getting tx clock\n"); + + plat_dat->fix_mac_speed =3D eic7700_qos_fix_speed; + plat_dat->set_clk_tx_rate =3D stmmac_set_clk_tx_rate; + plat_dat->bsp_priv =3D dwc_priv; + + ret =3D stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + if (ret) + return dev_err_probe(&pdev->dev, ret, "Failed to driver probe\n"); + + return ret; +} + +static const struct of_device_id eic7700_dwmac_match[] =3D { + { .compatible =3D "eswin,eic7700-qos-eth" }, + { } +}; +MODULE_DEVICE_TABLE(of, eic7700_dwmac_match); + +static struct platform_driver eic7700_dwmac_driver =3D { + .probe =3D eic7700_dwmac_probe, + .remove =3D stmmac_pltfr_remove, + .driver =3D { + .name =3D "eic7700-eth-dwmac", + .pm =3D &stmmac_pltfr_pm_ops, + .of_match_table =3D eic7700_dwmac_match, + }, +}; +module_platform_driver(eic7700_dwmac_driver); + +MODULE_AUTHOR("Eswin"); +MODULE_AUTHOR("Shuang Liang "); +MODULE_AUTHOR("Shangjuan Wei "); +MODULE_DESCRIPTION("Eswin eic7700 qos ethernet driver"); +MODULE_LICENSE("GPL"); -- 2.17.1