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-rw-r--r--drivers/net/ethernet/stmicro/stmmac/Makefile1
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c183
2 files changed, 0 insertions, 184 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
index 73df8b6c6fb4..ecadecea79b2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Makefile
+++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
@@ -1,5 +1,4 @@
1obj-$(CONFIG_STMMAC_ETH) += stmmac.o 1obj-$(CONFIG_STMMAC_ETH) += stmmac.o
2stmmac-$(CONFIG_ARCH_SOCFPGA) += dwmac-socfpga.o
3stmmac-$(CONFIG_STMMAC_PLATFORM) += stmmac_platform.o 2stmmac-$(CONFIG_STMMAC_PLATFORM) += stmmac_platform.o
4stmmac-$(CONFIG_STMMAC_PCI) += stmmac_pci.o 3stmmac-$(CONFIG_STMMAC_PCI) += stmmac_pci.o
5stmmac-$(CONFIG_DWMAC_SUNXI) += dwmac-sunxi.o 4stmmac-$(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 c7f034b9583c..000000000000
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ /dev/null
@@ -1,183 +0,0 @@
1/* Copyright (C) 2014 Altera Corporation
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 *
16 * Adopted from dwmac-sti.c
17 */
18
19#include <linux/clk.h>
20#include <linux/module.h>
21#include <linux/kernel.h>
22#include <linux/mfd/syscon.h>
23#include <linux/of.h>
24#include <linux/of_address.h>
25#include <linux/of_net.h>
26#include <linux/of_platform.h>
27#include <linux/phy.h>
28#include <linux/platform_device.h>
29#include <linux/regmap.h>
30#include <linux/stmmac.h>
31
32#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII 0x0
33#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII 0x1
34#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII 0x2
35#define SYSMGR_EMACGRP_CTRL_PHYSEL_WIDTH 2
36#define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK 0x00000003
37
38struct socfpga_dwmac {
39 int interface;
40 u32 reg_offset;
41 struct device *dev;
42 struct regmap *sys_mgr_base_addr;
43 struct device_node *dwmac_np;
44};
45
46static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *dev)
47{
48 struct device_node *np = dev->of_node;
49 struct device_node *stmmac_np;
50 struct regmap *sys_mgr_base_addr;
51 u32 reg_offset;
52 int ret;
53
54 stmmac_np = of_get_next_available_child(np, NULL);
55 if (!stmmac_np) {
56 dev_info(dev, "No dwmac node found\n");
57 return -EINVAL;
58 }
59
60 if (!of_device_is_compatible(stmmac_np, "snps,dwmac")) {
61 dev_info(dev, "dwmac node isn't compatible with snps,dwmac\n");
62 return -EINVAL;
63 }
64
65 dwmac->interface = of_get_phy_mode(stmmac_np);
66 of_node_put(stmmac_np);
67
68 sys_mgr_base_addr = syscon_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon");
69 if (IS_ERR(sys_mgr_base_addr)) {
70 dev_info(dev, "No sysmgr-syscon node found\n");
71 return PTR_ERR(sys_mgr_base_addr);
72 }
73
74 ret = of_property_read_u32_index(np, "altr,sysmgr-syscon", 1, &reg_offset);
75 if (ret) {
76 dev_info(dev, "Could not reg_offset into sysmgr-syscon!\n");
77 return -EINVAL;
78 }
79
80 dwmac->reg_offset = reg_offset;
81 dwmac->sys_mgr_base_addr = sys_mgr_base_addr;
82 dwmac->dwmac_np = stmmac_np;
83 dwmac->dev = dev;
84
85 return 0;
86}
87
88static int socfpga_dwmac_setup(struct socfpga_dwmac *dwmac)
89{
90 struct regmap *sys_mgr_base_addr = dwmac->sys_mgr_base_addr;
91 int phymode = dwmac->interface;
92 u32 reg_offset = dwmac->reg_offset;
93 u32 ctrl, val, shift = 0;
94
95 if (of_machine_is_compatible("altr,socfpga-vt"))
96 return 0;
97
98 switch (phymode) {
99 case PHY_INTERFACE_MODE_RGMII:
100 val = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII;
101 break;
102 case PHY_INTERFACE_MODE_MII:
103 case PHY_INTERFACE_MODE_GMII:
104 val = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII;
105 break;
106 default:
107 dev_err(dwmac->dev, "bad phy mode %d\n", phymode);
108 return -EINVAL;
109 }
110
111 regmap_read(sys_mgr_base_addr, reg_offset, &ctrl);
112 ctrl &= ~(SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << shift);
113 ctrl |= val << shift;
114
115 regmap_write(sys_mgr_base_addr, reg_offset, ctrl);
116 return 0;
117}
118
119static int socfpga_dwmac_probe(struct platform_device *pdev)
120{
121 struct device *dev = &pdev->dev;
122 struct device_node *node = dev->of_node;
123 int ret = -ENOMEM;
124 struct socfpga_dwmac *dwmac;
125
126 dwmac = devm_kzalloc(dev, sizeof(*dwmac), GFP_KERNEL);
127 if (!dwmac)
128 return -ENOMEM;
129
130 ret = socfpga_dwmac_parse_data(dwmac, dev);
131 if (ret) {
132 dev_err(dev, "Unable to parse OF data\n");
133 return ret;
134 }
135
136 ret = socfpga_dwmac_setup(dwmac);
137 if (ret) {
138 dev_err(dev, "couldn't setup SoC glue (%d)\n", ret);
139 return ret;
140 }
141
142 if (node) {
143 ret = of_platform_populate(node, NULL, NULL, dev);
144 if (ret) {
145 dev_err(dev, "failed to add dwmac core\n");
146 return ret;
147 }
148 } else {
149 dev_err(dev, "no device node, failed to add dwmac core\n");
150 return -ENODEV;
151 }
152
153 platform_set_drvdata(pdev, dwmac);
154
155 return 0;
156}
157
158static int socfpga_dwmac_remove(struct platform_device *pdev)
159{
160 return 0;
161}
162
163static const struct of_device_id socfpga_dwmac_match[] = {
164 { .compatible = "altr,socfpga-stmmac" },
165 {},
166};
167MODULE_DEVICE_TABLE(of, socfpga_dwmac_match);
168
169static struct platform_driver socfpga_dwmac_driver = {
170 .probe = socfpga_dwmac_probe,
171 .remove = socfpga_dwmac_remove,
172 .driver = {
173 .name = "socfpga-dwmac",
174 .of_match_table = of_match_ptr(socfpga_dwmac_match),
175 },
176};
177
178module_platform_driver(socfpga_dwmac_driver);
179
180MODULE_ALIAS("platform:socfpga-dwmac");
181MODULE_AUTHOR("Dinh Nguyen <dinguyen@altera.com>");
182MODULE_LICENSE("GPL v2");
183MODULE_DESCRIPTION("Altera SOCFPGA DWMAC Glue Layer");
generated by cgit v1.2.2 (git 2.25.0) at 2025-05-27 20:00:53 -0400