From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from azure-sdnproxy.icoremail.net (azure-sdnproxy.icoremail.net [52.229.168.213]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 658FF1E9B2F; Wed, 28 May 2025 04:17:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=52.229.168.213 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748405841; cv=none; b=a0B+DCEMK0gyym4OVmmH0mM/489V6A8XC47Fjbt7UR8PIq3r8rQN3No1eS9XCxSux5xOh3+eG0ZPRC5CFvZJtKqOIjjUzX37S0SOwK+Apuo2fnU2b2iOQbctIv8iLhQSyomtmJ0Ryyq8ebA+7Bo1CBS70Qhp/ef8ZM3sDsebY0o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748405841; c=relaxed/simple; bh=U1JlldZryrvPUcxN5170halGtEX8F4MAhYEiywlgjq4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=srla7uESbDff7zzdSJrvy6tM7CfwIppOU1GUmRGaNSPRxJPjkVpzw7AsHdbQKprm52UlEtE7iE4KI+ukxWf/p8csv8ws1ClEvoZIU5PUttDK2fpPS6WZEzho88SbpEzjabjV8CRJFDjDEZ01o6xPP3veqj0hjoDB+j2xVQlJ7Fs= 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=52.229.168.213 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 E0005182DT.eswin.cn (unknown [10.12.97.162]) by app1 (Coremail) with SMTP id TAJkCgD3DQ8ljjZoLAyVAA--.6939S2; Wed, 28 May 2025 12:16:39 +0800 (CST) From: weishangjuan@eswincomputing.com To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, 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, vladimir.oltean@nxp.com, rmk+kernel@armlinux.org.uk, yong.liang.choong@linux.intel.com, prabhakar.mahadev-lad.rj@bp.renesas.com, inochiama@gmail.com, jan.petrous@oss.nxp.com, jszhang@kernel.org, p.zabel@pengutronix.de, 0x1207@gmail.com, boon.khai.ng@altera.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: =?UTF-8?q?=5BPATCH=20v2=202/2=5D=20ethernet=3A=C2=A0eswin=3A=C2=A0Add=C2=A0eic7700=C2=A0ethernet=C2=A0driver?= Date: Wed, 28 May 2025 12:16:25 +0800 Message-ID: <20250528041634.912-1-weishangjuan@eswincomputing.com> X-Mailer: git-send-email 2.49.0.windows.1 In-Reply-To: <20250528041455.878-1-weishangjuan@eswincomputing.com> References: <20250528041455.878-1-weishangjuan@eswincomputing.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-CM-TRANSID:TAJkCgD3DQ8ljjZoLAyVAA--.6939S2 X-Coremail-Antispam: 1UD129KBjvAXoW3tF45CrWxKr1rZr1fGrWfXwb_yoW8Xr1UGo WfGFnxXw10yr17CFs5tr1xGFnIga1DAws3W3y5uwn09as3Z3W5Xryqgw13X3WSkr4rtFWr Zr4kJr1fXF4SqrZ8n29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7v73VFW2AGmfu7bjvjm3 AaLaJ3UjIYCTnIWjp_UUUYN7AC8VAFwI0_Wr0E3s1l1xkIjI8I6I8E6xAIw20EY4v20xva j40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2 x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8 Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26r xl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj 6xIIjxv20xvE14v26r1Y6r17McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr 0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E 8cxan2IY04v7M4kE6xkIj40Ew7xC0wCY1x0262kKe7AKxVW8ZVWrXwCY02Avz4vE-syl42 xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWU GwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a6rW5MIIYrxkI7VAKI4 8JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4U JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcV C2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7sRiWrW5UUUUU== X-CM-SenderInfo: pzhl2xxdqjy31dq6v25zlqu0xpsx3x1qjou0bp/ 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 | 410 ++++++++++++++++++ 3 files changed, 422 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/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/ethernet/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-$(CONFIG_STMMAC_SELFTESTS) += stmmac_selftests.o # Ordering matters. Generic driver must be last. obj-$(CONFIG_STMMAC_PLATFORM) += stmmac-platform.o obj-$(CONFIG_DWMAC_ANARION) += dwmac-anarion.o +obj-$(CONFIG_DWMAC_EIC7700) += dwmac-eic7700.o obj-$(CONFIG_DWMAC_INGENIC) += dwmac-ingenic.o obj-$(CONFIG_DWMAC_IPQ806X) += dwmac-ipq806x.o obj-$(CONFIG_DWMAC_LPC18XX) += 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..98b1e63913be --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c @@ -0,0 +1,410 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Eswin DWC Ethernet linux driver + * + * Authors: Shuang Liang + * Shangjuan Wei + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "stmmac_platform.h" +#include "dwmac4.h" + +#include + +/* eth_phy_ctrl_offset eth0:0x100; eth1:0x200 */ +#define ETH_TX_CLK_SEL BIT(16) +#define ETH_PHY_INTF_SELI BIT(0) + +/* eth_axi_lp_ctrl_offset eth0:0x108; eth1:0x208 */ +#define ETH_CSYSREQ_VAL BIT(0) + +/* hsp_aclk_ctrl_offset (0x148) */ +#define HSP_ACLK_CLKEN BIT(31) +#define HSP_ACLK_DIVSOR (0x2 << 4) + +/* hsp_cfg_ctrl_offset (0x14c) */ +#define HSP_CFG_CLKEN BIT(31) +#define SCU_HSP_PCLK_EN BIT(30) +#define HSP_CFG_CTRL_REGSET (HSP_CFG_CLKEN | SCU_HSP_PCLK_EN) + +/* PHY default addr in mdio*/ +#define PHY_ADDR -1 + +struct eswin_qos_priv { + struct device *dev; + int dev_id; + struct regmap *crg_regmap; + struct regmap *hsp_regmap; + int phyaddr; + unsigned int dly_hsp_reg[3]; + unsigned int dly_param_1000m[3]; + unsigned int dly_param_100m[3]; + unsigned int dly_param_10m[3]; +}; + +static struct clk *dwc_eth_find_clk(struct plat_stmmacenet_data *plat_dat, + const char *name) +{ + for (int i = 0; i < plat_dat->num_clks; i++) + if (strcmp(plat_dat->clks[i].id, name) == 0) + return plat_dat->clks[i].clk; + + return NULL; +} + +static int dwc_eth_dwmac_config_dt(struct platform_device *pdev, + struct plat_stmmacenet_data *plat_dat) +{ + struct device *dev = &pdev->dev; + u32 burst_map = 0; + u32 bit_index = 0; + u32 a_index = 0; + + if (!plat_dat->axi) { + plat_dat->axi = devm_kzalloc(&pdev->dev, sizeof(struct stmmac_axi), GFP_KERNEL); + + if (!plat_dat->axi) + return -ENOMEM; + } + + plat_dat->axi->axi_lpi_en = device_property_read_bool(dev, + "snps,en-lpi"); + if (device_property_read_u32(dev, "snps,write-requests", + &plat_dat->axi->axi_wr_osr_lmt)) { + /** + * Since the register has a reset value of 1, if property + * is missing, default to 1. + */ + plat_dat->axi->axi_wr_osr_lmt = 1; + } else { + /** + * If property exists, to keep the behavior from dwc_eth_qos, + * subtract one after parsing. + */ + plat_dat->axi->axi_wr_osr_lmt--; + } + + if (device_property_read_u32(dev, "snps,read-requests", + &plat_dat->axi->axi_rd_osr_lmt)) { + /** + * Since the register has a reset value of 1, if property + * is missing, default to 1. + */ + plat_dat->axi->axi_rd_osr_lmt = 1; + } else { + /** + * If property exists, to keep the behavior from dwc_eth_qos, + * subtract one after parsing. + */ + plat_dat->axi->axi_rd_osr_lmt--; + } + device_property_read_u32(dev, "snps,burst-map", &burst_map); + + /* converts burst-map bitmask to burst array */ + for (bit_index = 0; bit_index < 7; bit_index++) { + if (burst_map & (1 << bit_index)) { + switch (bit_index) { + case 0: + plat_dat->axi->axi_blen[a_index] = 4; break; + case 1: + plat_dat->axi->axi_blen[a_index] = 8; break; + case 2: + plat_dat->axi->axi_blen[a_index] = 16; break; + case 3: + plat_dat->axi->axi_blen[a_index] = 32; break; + case 4: + plat_dat->axi->axi_blen[a_index] = 64; break; + case 5: + plat_dat->axi->axi_blen[a_index] = 128; break; + case 6: + plat_dat->axi->axi_blen[a_index] = 256; break; + default: + break; + } + a_index++; + } + } + + /* dwc-qos needs GMAC4, AAL, TSO and PMT */ + plat_dat->has_gmac4 = 1; + plat_dat->dma_cfg->aal = 1; + plat_dat->flags |= STMMAC_FLAG_TSO_EN; + plat_dat->pmt = 1; + + return 0; +} + +static int dwc_qos_probe(struct platform_device *pdev, + struct plat_stmmacenet_data *plat_dat, + struct stmmac_resources *stmmac_res) +{ + plat_dat->pclk = dwc_eth_find_clk(plat_dat, "phy_ref_clk"); + + return 0; +} + +static void eswin_qos_fix_speed(void *priv, int speed, unsigned int mode) +{ + struct eswin_qos_priv *dwc_priv = priv; + int i; + + switch (speed) { + case SPEED_1000: + for (i = 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 = 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 = 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 eswin_qos_probe(struct platform_device *pdev, + struct plat_stmmacenet_data *plat_dat, + struct stmmac_resources *stmmac_res) +{ + struct eswin_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; + struct clk *clk_app; + int ret; + int err; + + dwc_priv = devm_kzalloc(&pdev->dev, sizeof(*dwc_priv), GFP_KERNEL); + if (!dwc_priv) + return -ENOMEM; + + if (device_property_read_u32(&pdev->dev, "id", &dwc_priv->dev_id)) + return dev_err_probe(&pdev->dev, -EINVAL, + "Can not read device id!\n"); + + dwc_priv->dev = &pdev->dev; + + ret = of_property_read_u32_index(pdev->dev.of_node, "eswin,phyaddr", 0, + &dwc_priv->phyaddr); + if (ret) + dev_warn(&pdev->dev, "can't get phyaddr (%d)\n", ret); + + ret = of_property_read_variable_u32_array(pdev->dev.of_node, "eswin,dly_hsp_reg", + &dwc_priv->dly_hsp_reg[0], 3, 0); + if (ret != 3) { + dev_err(&pdev->dev, "can't get delay hsp reg.ret(%d)\n", ret); + return ret; + } + + ret = of_property_read_variable_u32_array(pdev->dev.of_node, "dly-param-1000m", + &dwc_priv->dly_param_1000m[0], 3, 0); + if (ret != 3) { + dev_err(&pdev->dev, "can't get delay param for 1Gbps mode (%d)\n", ret); + return ret; + } + + ret = of_property_read_variable_u32_array(pdev->dev.of_node, "dly-param-100m", + &dwc_priv->dly_param_100m[0], 3, 0); + if (ret != 3) { + dev_err(&pdev->dev, "can't get delay param for 100Mbps mode (%d)\n", ret); + return ret; + } + + ret = of_property_read_variable_u32_array(pdev->dev.of_node, "dly-param-10m", + &dwc_priv->dly_param_10m[0], 3, 0); + if (ret != 3) { + dev_err(&pdev->dev, "can't get delay param for 10Mbps mode (%d)\n", ret); + return ret; + } + + dwc_priv->crg_regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, + "eswin,syscrg_csr"); + if (IS_ERR(dwc_priv->crg_regmap)) { + dev_dbg(&pdev->dev, "No syscrg_csr phandle specified\n"); + return 0; + } + + ret = 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 syscrg_csr 1\n"); + + regmap_read(dwc_priv->crg_regmap, hsp_aclk_ctrl_offset, &hsp_aclk_ctrl_regset); + hsp_aclk_ctrl_regset |= (HSP_ACLK_CLKEN | HSP_ACLK_DIVSOR); + regmap_write(dwc_priv->crg_regmap, hsp_aclk_ctrl_offset, hsp_aclk_ctrl_regset); + + ret = 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 syscrg_csr 2\n"); + + regmap_write(dwc_priv->crg_regmap, hsp_cfg_ctrl_offset, HSP_CFG_CTRL_REGSET); + + dwc_priv->hsp_regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, + "eswin,hsp_sp_csr"); + if (IS_ERR(dwc_priv->hsp_regmap)) { + dev_dbg(&pdev->dev, "No hsp_sp_csr phandle specified\n"); + return 0; + } + + ret = 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 hsp_sp_csr 2\n"); + + regmap_read(dwc_priv->hsp_regmap, + eth_phy_ctrl_offset, + ð_phy_ctrl_regset); + eth_phy_ctrl_regset |= (ETH_TX_CLK_SEL | ETH_PHY_INTF_SELI); + regmap_write(dwc_priv->hsp_regmap, + eth_phy_ctrl_offset, + eth_phy_ctrl_regset); + + ret = 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 hsp_sp_csr 3\n"); + + regmap_write(dwc_priv->hsp_regmap, + eth_axi_lp_ctrl_offset, + ETH_CSYSREQ_VAL); + + clk_app = devm_clk_get_enabled(&pdev->dev, "app"); + if (IS_ERR(clk_app)) + return dev_err_probe(&pdev->dev, PTR_ERR(clk_app), + "error getting app clock\n"); + + plat_dat->clk_tx_i = 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 = eswin_qos_fix_speed; + plat_dat->set_clk_tx_rate = stmmac_set_clk_tx_rate; + plat_dat->bsp_priv = dwc_priv; + plat_dat->phy_addr = PHY_ADDR; + + return 0; +} + +struct dwc_eth_dwmac_data { + int (*probe)(struct platform_device *pdev, + struct plat_stmmacenet_data *plat_dat, + struct stmmac_resources *res); + const char *stmmac_clk_name; +}; + +static const struct dwc_eth_dwmac_data eswin_qos_data = { + .probe = eswin_qos_probe, + .stmmac_clk_name = "stmmaceth", +}; + +static int dwc_eth_dwmac_probe(struct platform_device *pdev) +{ + const struct dwc_eth_dwmac_data *data; + struct plat_stmmacenet_data *plat_dat; + struct stmmac_resources stmmac_res; + int ret; + + data = device_get_match_data(&pdev->dev); + + memset(&stmmac_res, 0, sizeof(struct stmmac_resources)); + + /** + * Since stmmac_platform supports name IRQ only, basic platform + * resource initialization is done in the glue logic. + */ + stmmac_res.irq = platform_get_irq(pdev, 0); + if (stmmac_res.irq < 0) + return stmmac_res.irq; + stmmac_res.wol_irq = stmmac_res.irq; + + stmmac_res.addr = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(stmmac_res.addr)) + return PTR_ERR(stmmac_res.addr); + + plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + + plat_dat->stmmac_clk = dwc_eth_find_clk(plat_dat, + data->stmmac_clk_name); + + if (data->probe) + ret = data->probe(pdev, plat_dat, &stmmac_res); + if (ret < 0) { + return dev_err_probe(&pdev->dev, ret, + "failed to probe subdriver\n"); + } + + ret = dwc_eth_dwmac_config_dt(pdev, plat_dat); + if (ret) + return dev_err_probe(&pdev->dev, ret, + "Failed to config dt\n"); + + ret = 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 dwc_eth_dwmac_match[] = { + { .compatible = "eswin,eic7700-qos-eth", .data = &eswin_qos_data }, + { } +}; +MODULE_DEVICE_TABLE(of, dwc_eth_dwmac_match); + +static struct platform_driver eic7700_eth_dwmac_driver = { + .probe = dwc_eth_dwmac_probe, + .remove = stmmac_pltfr_remove, + .driver = { + .name = "eic7700-eth-dwmac", + .pm = &stmmac_pltfr_pm_ops, + .of_match_table = dwc_eth_dwmac_match, + }, +}; +module_platform_driver(eic7700_eth_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