diff options
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 183 |
2 files changed, 0 insertions, 184 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile index 73df8b6c6fb..ecadecea79b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -1,5 +1,4 @@ obj-$(CONFIG_STMMAC_ETH) += stmmac.o -stmmac-$(CONFIG_ARCH_SOCFPGA) += dwmac-socfpga.o stmmac-$(CONFIG_STMMAC_PLATFORM) += stmmac_platform.o stmmac-$(CONFIG_STMMAC_PCI) += stmmac_pci.o stmmac-$(CONFIG_DWMAC_SUNXI) += dwmac-sunxi.o diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c deleted file mode 100644 index c7f034b9583..00000000000 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ /dev/null @@ -1,183 +0,0 @@ -/* Copyright (C) 2014 Altera Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * Adopted from dwmac-sti.c - */ - -#include <linux/clk.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/mfd/syscon.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/of_net.h> -#include <linux/of_platform.h> -#include <linux/phy.h> -#include <linux/platform_device.h> -#include <linux/regmap.h> -#include <linux/stmmac.h> - -#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII 0x0 -#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII 0x1 -#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII 0x2 -#define SYSMGR_EMACGRP_CTRL_PHYSEL_WIDTH 2 -#define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK 0x00000003 - -struct socfpga_dwmac { - int interface; - u32 reg_offset; - struct device *dev; - struct regmap *sys_mgr_base_addr; - struct device_node *dwmac_np; -}; - -static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *dev) -{ - struct device_node *np = dev->of_node; - struct device_node *stmmac_np; - struct regmap *sys_mgr_base_addr; - u32 reg_offset; - int ret; - - stmmac_np = of_get_next_available_child(np, NULL); - if (!stmmac_np) { - dev_info(dev, "No dwmac node found\n"); - return -EINVAL; - } - - if (!of_device_is_compatible(stmmac_np, "snps,dwmac")) { - dev_info(dev, "dwmac node isn't compatible with snps,dwmac\n"); - return -EINVAL; - } - - dwmac->interface = of_get_phy_mode(stmmac_np); - of_node_put(stmmac_np); - - sys_mgr_base_addr = syscon_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon"); - if (IS_ERR(sys_mgr_base_addr)) { - dev_info(dev, "No sysmgr-syscon node found\n"); - return PTR_ERR(sys_mgr_base_addr); - } - - ret = of_property_read_u32_index(np, "altr,sysmgr-syscon", 1, ®_offset); - if (ret) { - dev_info(dev, "Could not reg_offset into sysmgr-syscon!\n"); - return -EINVAL; - } - - dwmac->reg_offset = reg_offset; - dwmac->sys_mgr_base_addr = sys_mgr_base_addr; - dwmac->dwmac_np = stmmac_np; - dwmac->dev = dev; - - return 0; -} - -static int socfpga_dwmac_setup(struct socfpga_dwmac *dwmac) -{ - struct regmap *sys_mgr_base_addr = dwmac->sys_mgr_base_addr; - int phymode = dwmac->interface; - u32 reg_offset = dwmac->reg_offset; - u32 ctrl, val, shift = 0; - - if (of_machine_is_compatible("altr,socfpga-vt")) - return 0; - - switch (phymode) { - case PHY_INTERFACE_MODE_RGMII: - val = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII; - break; - case PHY_INTERFACE_MODE_MII: - case PHY_INTERFACE_MODE_GMII: - val = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII; - break; - default: - dev_err(dwmac->dev, "bad phy mode %d\n", phymode); - return -EINVAL; - } - - regmap_read(sys_mgr_base_addr, reg_offset, &ctrl); - ctrl &= ~(SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << shift); - ctrl |= val << shift; - - regmap_write(sys_mgr_base_addr, reg_offset, ctrl); - return 0; -} - -static int socfpga_dwmac_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node; - int ret = -ENOMEM; - struct socfpga_dwmac *dwmac; - - dwmac = devm_kzalloc(dev, sizeof(*dwmac), GFP_KERNEL); - if (!dwmac) - return -ENOMEM; - - ret = socfpga_dwmac_parse_data(dwmac, dev); - if (ret) { - dev_err(dev, "Unable to parse OF data\n"); - return ret; - } - - ret = socfpga_dwmac_setup(dwmac); - if (ret) { - dev_err(dev, "couldn't setup SoC glue (%d)\n", ret); - return ret; - } - - if (node) { - ret = of_platform_populate(node, NULL, NULL, dev); - if (ret) { - dev_err(dev, "failed to add dwmac core\n"); - return ret; - } - } else { - dev_err(dev, "no device node, failed to add dwmac core\n"); - return -ENODEV; - } - - platform_set_drvdata(pdev, dwmac); - - return 0; -} - -static int socfpga_dwmac_remove(struct platform_device *pdev) -{ - return 0; -} - -static const struct of_device_id socfpga_dwmac_match[] = { - { .compatible = "altr,socfpga-stmmac" }, - {}, -}; -MODULE_DEVICE_TABLE(of, socfpga_dwmac_match); - -static struct platform_driver socfpga_dwmac_driver = { - .probe = socfpga_dwmac_probe, - .remove = socfpga_dwmac_remove, - .driver = { - .name = "socfpga-dwmac", - .of_match_table = of_match_ptr(socfpga_dwmac_match), - }, -}; - -module_platform_driver(socfpga_dwmac_driver); - -MODULE_ALIAS("platform:socfpga-dwmac"); -MODULE_AUTHOR("Dinh Nguyen <dinguyen@altera.com>"); -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("Altera SOCFPGA DWMAC Glue Layer"); |