2 * Copyright (C) 1999 - 2010 Intel Corporation.
3 * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
5 * This code was derived from the Intel e1000e Linux driver.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #include "pch_gbe_phy.h"
21 #include "pch_gbe_api.h"
24 #define pch_gbe_bus_type_unknown 0
25 #define pch_gbe_bus_type_pci 1
26 #define pch_gbe_bus_type_pcix 2
27 #define pch_gbe_bus_type_pci_express 3
28 #define pch_gbe_bus_type_reserved 4
30 /* bus speed values */
31 #define pch_gbe_bus_speed_unknown 0
32 #define pch_gbe_bus_speed_33 1
33 #define pch_gbe_bus_speed_66 2
34 #define pch_gbe_bus_speed_100 3
35 #define pch_gbe_bus_speed_120 4
36 #define pch_gbe_bus_speed_133 5
37 #define pch_gbe_bus_speed_2500 6
38 #define pch_gbe_bus_speed_reserved 7
40 /* bus width values */
41 #define pch_gbe_bus_width_unknown 0
42 #define pch_gbe_bus_width_pcie_x1 1
43 #define pch_gbe_bus_width_pcie_x2 2
44 #define pch_gbe_bus_width_pcie_x4 4
45 #define pch_gbe_bus_width_32 5
46 #define pch_gbe_bus_width_64 6
47 #define pch_gbe_bus_width_reserved 7
50 * pch_gbe_plat_get_bus_info - Obtain bus information for adapter
51 * @hw: Pointer to the HW structure
53 static void pch_gbe_plat_get_bus_info(struct pch_gbe_hw *hw)
55 hw->bus.type = pch_gbe_bus_type_pci_express;
56 hw->bus.speed = pch_gbe_bus_speed_2500;
57 hw->bus.width = pch_gbe_bus_width_pcie_x1;
61 * pch_gbe_plat_init_hw - Initialize hardware
62 * @hw: Pointer to the HW structure
65 * Negative value: Failed-EBUSY
67 static s32 pch_gbe_plat_init_hw(struct pch_gbe_hw *hw)
71 ret_val = pch_gbe_phy_get_id(hw);
73 struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
75 netdev_err(adapter->netdev, "pch_gbe_phy_get_id error\n");
78 pch_gbe_phy_init_setting(hw);
79 /* Setup Mac interface option RGMII */
80 #ifdef PCH_GBE_MAC_IFOP_RGMII
81 pch_gbe_phy_set_rgmii(hw);
86 static const struct pch_gbe_functions pch_gbe_ops = {
87 .get_bus_info = pch_gbe_plat_get_bus_info,
88 .init_hw = pch_gbe_plat_init_hw,
89 .read_phy_reg = pch_gbe_phy_read_reg_miic,
90 .write_phy_reg = pch_gbe_phy_write_reg_miic,
91 .reset_phy = pch_gbe_phy_hw_reset,
92 .sw_reset_phy = pch_gbe_phy_sw_reset,
93 .power_up_phy = pch_gbe_phy_power_up,
94 .power_down_phy = pch_gbe_phy_power_down,
95 .read_mac_addr = pch_gbe_mac_read_mac_addr
99 * pch_gbe_plat_init_function_pointers - Init func ptrs
100 * @hw: Pointer to the HW structure
102 static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
104 /* Set PHY parameter */
105 hw->phy.reset_delay_us = PCH_GBE_PHY_RESET_DELAY_US;
106 /* Set function pointers */
107 hw->func = &pch_gbe_ops;
111 * pch_gbe_hal_setup_init_funcs - Initializes function pointers
112 * @hw: Pointer to the HW structure
115 * ENOSYS: Function is not registered
117 s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
120 struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
122 netdev_err(adapter->netdev, "ERROR: Registers not mapped\n");
125 pch_gbe_plat_init_function_pointers(hw);
130 * pch_gbe_hal_get_bus_info - Obtain bus information for adapter
131 * @hw: Pointer to the HW structure
133 void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
135 if (!hw->func->get_bus_info) {
136 struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
138 netdev_err(adapter->netdev, "ERROR: configuration\n");
141 hw->func->get_bus_info(hw);
145 * pch_gbe_hal_init_hw - Initialize hardware
146 * @hw: Pointer to the HW structure
149 * ENOSYS: Function is not registered
151 s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
153 if (!hw->func->init_hw) {
154 struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
156 netdev_err(adapter->netdev, "ERROR: configuration\n");
159 return hw->func->init_hw(hw);
163 * pch_gbe_hal_read_phy_reg - Reads PHY register
164 * @hw: Pointer to the HW structure
165 * @offset: The register to read
166 * @data: The buffer to store the 16-bit read.
169 * Negative value: Failed
171 s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
174 if (!hw->func->read_phy_reg)
176 return hw->func->read_phy_reg(hw, offset, data);
180 * pch_gbe_hal_write_phy_reg - Writes PHY register
181 * @hw: Pointer to the HW structure
182 * @offset: The register to read
183 * @data: The value to write.
186 * Negative value: Failed
188 s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
191 if (!hw->func->write_phy_reg)
193 return hw->func->write_phy_reg(hw, offset, data);
197 * pch_gbe_hal_phy_hw_reset - Hard PHY reset
198 * @hw: Pointer to the HW structure
200 void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
202 if (!hw->func->reset_phy) {
203 struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
205 netdev_err(adapter->netdev, "ERROR: configuration\n");
208 hw->func->reset_phy(hw);
212 * pch_gbe_hal_phy_sw_reset - Soft PHY reset
213 * @hw: Pointer to the HW structure
215 void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
217 if (!hw->func->sw_reset_phy) {
218 struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
220 netdev_err(adapter->netdev, "ERROR: configuration\n");
223 hw->func->sw_reset_phy(hw);
227 * pch_gbe_hal_read_mac_addr - Reads MAC address
228 * @hw: Pointer to the HW structure
231 * ENOSYS: Function is not registered
233 s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
235 if (!hw->func->read_mac_addr) {
236 struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
238 netdev_err(adapter->netdev, "ERROR: configuration\n");
241 return hw->func->read_mac_addr(hw);
245 * pch_gbe_hal_power_up_phy - Power up PHY
246 * @hw: Pointer to the HW structure
248 void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
250 if (hw->func->power_up_phy)
251 hw->func->power_up_phy(hw);
255 * pch_gbe_hal_power_down_phy - Power down PHY
256 * @hw: Pointer to the HW structure
258 void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw)
260 if (hw->func->power_down_phy)
261 hw->func->power_down_phy(hw);