diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index 92d7d5a00b84c..adc632948c362 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -121,6 +121,15 @@ config DWMAC_MESON the stmmac device driver. This driver is used for Meson6, Meson8, Meson8b and GXBB SoCs. +config DWMAC_PHYTIUM + tristate "Phytium dwmac support" + depends on (OF || ACPI) + help + Support for GMAC controller on Phytium SoCs. + + This selects the Phytium GMAC glue layer support for the + stmmac device driver. + config DWMAC_QCOM_ETHQOS tristate "Qualcomm ETHQOS support" default ARCH_QCOM diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile index 5b57aee19267f..d6160c8dff18e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -33,6 +33,7 @@ obj-$(CONFIG_DWMAC_GENERIC) += dwmac-generic.o obj-$(CONFIG_DWMAC_IMX8) += dwmac-imx.o obj-$(CONFIG_DWMAC_TEGRA) += dwmac-tegra.o obj-$(CONFIG_DWMAC_VISCONTI) += dwmac-visconti.o +obj-$(CONFIG_DWMAC_PHYTIUM) += dwmac-phytium.o stmmac-platform-objs:= stmmac_platform.o dwmac-altr-socfpga-objs := dwmac-socfpga.o diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 4dbc076f72d65..5a950cf077740 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -50,10 +50,10 @@ */ #define DMA_MIN_TX_SIZE 64 #define DMA_MAX_TX_SIZE 1024 -#define DMA_DEFAULT_TX_SIZE 512 +#define DMA_DEFAULT_TX_SIZE 1024 #define DMA_MIN_RX_SIZE 64 #define DMA_MAX_RX_SIZE 1024 -#define DMA_DEFAULT_RX_SIZE 512 +#define DMA_DEFAULT_RX_SIZE 1024 #define STMMAC_GET_ENTRY(x, size) ((x + 1) & (size - 1)) #undef FRAME_FILTER_DEBUG diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-phytium.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-phytium.c new file mode 100644 index 0000000000000..23f0e4a47be20 --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-phytium.c @@ -0,0 +1,217 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Phytium SWMAC specific glue layer + * + * Copyright (C) 2022, Phytium Technology Co., Ltd. + * + * Chen Baozi + */ + +#include +#include +#include +#include +#include +#include + +#include "stmmac.h" +#include "stmmac_platform.h" + +static int phytium_get_mac_mode(struct fwnode_handle *fwnode) +{ + const char *pm; + int err, i; + + err = fwnode_property_read_string(fwnode, "mac-mode", &pm); + if (err < 0) + return err; + + for (i = 0; i < PHY_INTERFACE_MODE_MAX; i++) { + if (!strcasecmp(pm, phy_modes(i))) + return i; + } + + return -ENODEV; +} + +static int phytium_dwmac_acpi_phy(struct plat_stmmacenet_data *plat, + struct fwnode_handle *np, struct device *dev) +{ + plat->mdio_bus_data = devm_kzalloc(dev, sizeof(struct stmmac_mdio_bus_data), GFP_KERNEL); + + return 0; +} + +static int phytium_dwmac_probe(struct platform_device *pdev) +{ + struct fwnode_handle *fwnode = dev_fwnode(&pdev->dev); + struct plat_stmmacenet_data *plat; + struct stmmac_resources stmmac_res; + struct device_node *np = pdev->dev.of_node; + u64 clk_freq; + char clk_name[20]; + int ret; + + plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL); + if (!plat) + return -ENOMEM; + + plat->dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->dma_cfg), GFP_KERNEL); + if (!plat->dma_cfg) + return -ENOMEM; + + plat->axi = devm_kzalloc(&pdev->dev, sizeof(*plat->axi), GFP_KERNEL); + if (!plat->axi) + return -ENOMEM; + + plat->phy_interface = device_get_phy_mode(&pdev->dev); + if (plat->phy_interface < 0) + return plat->phy_interface; + + plat->mac_interface = phytium_get_mac_mode(fwnode); + if (plat->mac_interface < 0) + plat->mac_interface = plat->phy_interface; + + /* Configure PHY if using device-tree */ + if (pdev->dev.of_node) { + plat->phy_node = of_parse_phandle(np, "phy-handle", 0); + plat->phy_node = np; + } + + if (pdev->dev.of_node) { + plat->bus_id = of_alias_get_id(np, "ethernet"); + if (plat->bus_id < 0) + plat->bus_id = 0; + } else if (fwnode_property_read_u32(fwnode, "bus_id", &plat->bus_id)) { + plat->bus_id = 2; + } + + plat->phy_addr = -1; + plat->clk_csr = -1; + plat->has_gmac = 1; + plat->enh_desc = 1; + plat->bugged_jumbo = 1; + plat->pmt = 1; + plat->force_sf_dma_mode = 1; + + if (fwnode_property_read_u32(fwnode, "max-speed", &plat->max_speed)) + plat->max_speed = -1; + + if (fwnode_property_read_u32(fwnode, "max-frame-size", &plat->maxmtu)) + plat->maxmtu = JUMBO_LEN; + + if (fwnode_property_read_u32(fwnode, "snps,multicast-filter-bins", + &plat->multicast_filter_bins)) + plat->multicast_filter_bins = HASH_TABLE_SIZE; + + if (fwnode_property_read_u32(fwnode, "snps,perfect-filter-entries", + &plat->unicast_filter_entries)) + plat->unicast_filter_entries = 1; + + if (fwnode_property_read_u32(fwnode, "tx-fifo-depth", &plat->tx_fifo_size)) + plat->tx_fifo_size = 0x1000; + + if (fwnode_property_read_u32(fwnode, "rx-fifo-depth", &plat->rx_fifo_size)) + plat->rx_fifo_size = 0x1000; + + if (phytium_dwmac_acpi_phy(plat, fwnode, &pdev->dev)) + return -ENODEV; + + plat->rx_queues_to_use = 1; + plat->tx_queues_to_use = 1; + plat->rx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB; + plat->tx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB; + + if (fwnode_property_read_u64(fwnode, "clock-frequency", &clk_freq)) + clk_freq = 125000000; + + /* Set system clock */ + snprintf(clk_name, sizeof(clk_name), "%s-%d", "stmmaceth", plat->bus_id); + + plat->stmmac_clk = clk_register_fixed_rate(&pdev->dev, clk_name, NULL, 0, clk_freq); + if (IS_ERR(plat->stmmac_clk)) { + dev_warn(&pdev->dev, "Fail to register stmmac-clk\n"); + plat->stmmac_clk = NULL; + } + + ret = clk_prepare_enable(plat->stmmac_clk); + if (ret) { + clk_unregister_fixed_rate(plat->stmmac_clk); + return ret; + } + + plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk); + plat->clk_ptp_ref = NULL; + + if (fwnode_property_read_u32(fwnode, "snps,pbl", &plat->dma_cfg->pbl)) + plat->dma_cfg->pbl = 16; + + fwnode_property_read_u32(fwnode, "snps,txpbl", &plat->dma_cfg->txpbl); + fwnode_property_read_u32(fwnode, "snps,rxpbl", &plat->dma_cfg->rxpbl); + + plat->dma_cfg->pblx8 = !fwnode_property_read_bool(fwnode, "snps,no-pbl-x8"); + plat->dma_cfg->aal = fwnode_property_read_bool(fwnode, "snps,aal"); + plat->dma_cfg->fixed_burst = fwnode_property_read_bool(fwnode, "snps,fixed-burst"); + plat->dma_cfg->mixed_burst = fwnode_property_read_bool(fwnode, "snps,mixed-burst"); + + plat->axi->axi_lpi_en = false; + plat->axi->axi_xit_frm = false; + plat->axi->axi_wr_osr_lmt = 7; + plat->axi->axi_rd_osr_lmt = 7; + plat->axi->axi_blen[0] = 16; + + memset(&stmmac_res, 0, sizeof(stmmac_res)); + stmmac_res.addr = devm_platform_ioremap_resource(pdev, 0); + stmmac_res.irq = platform_get_irq(pdev, 0); + if (stmmac_res.irq < 0) { + dev_err(&pdev->dev, "IRQ not found.\n"); + return -ENXIO; + } + stmmac_res.wol_irq = stmmac_res.irq; + stmmac_res.lpi_irq = -1; + + return stmmac_dvr_probe(&pdev->dev, plat, &stmmac_res); +} + +int phytium_dwmac_remove(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct stmmac_priv *priv = netdev_priv(ndev); + struct plat_stmmacenet_data *plat = priv->plat; + + stmmac_pltfr_remove(pdev); + clk_unregister_fixed_rate(plat->stmmac_clk); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id phytium_dwmac_of_match[] = { + { .compatible = "phytium,gmac" }, + { } +}; +MODULE_DEVICE_TABLE(of, phytium_dwmac_of_match); +#endif + +#ifdef CONFIG_ACPI +static const struct acpi_device_id phytium_dwmac_acpi_ids[] = { + { .id = "PHYT0004" }, + { } +}; +MODULE_DEVICE_TABLE(acpi, phytium_dwmac_acpi_ids); +#endif + +static struct platform_driver phytium_dwmac_driver = { + .probe = phytium_dwmac_probe, + .remove = phytium_dwmac_remove, + .driver = { + .name = "phytium-dwmac", + .of_match_table = of_match_ptr(phytium_dwmac_of_match), + .acpi_match_table = ACPI_PTR(phytium_dwmac_acpi_ids), + }, +}; +module_platform_driver(phytium_dwmac_driver); + +MODULE_AUTHOR("Chen Baozi "); +MODULE_DESCRIPTION("Phytium DWMAC specific glue layer"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c index 68a7cfcb1d8f3..40088a390f7b3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c +++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c @@ -200,6 +200,10 @@ static void ndesc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len, else norm_set_tx_desc_len_on_ring(p, len); + /* The own bit must be the latest setting done when prepare the + * descriptor and then barrier is needed to make sure that all is coherent. + */ + wmb(); if (tx_own) p->des0 |= cpu_to_le32(TDES0_OWN); }