1 /* 2 * Copyright 2011 Freescale Semiconductor, Inc. 3 * Author: Mingkai Hu <Mingkai.hu@freescale.com> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 /* 25 * The RGMII PHYs are provided by the two on-board PHY. The SGMII PHYs 26 * are provided by the three on-board PHY or by the standard Freescale 27 * four-port SGMII riser card. We need to change the phy-handle in the 28 * kernel dts file to point to the correct PHY according to serdes mux 29 * and serdes protocol selection. 30 */ 31 32 #include <common.h> 33 #include <netdev.h> 34 #include <asm/fsl_serdes.h> 35 #include <fm_eth.h> 36 #include <fsl_mdio.h> 37 #include <malloc.h> 38 #include <asm/fsl_dtsec.h> 39 40 #include "cpld.h" 41 #include "../common/fman.h" 42 43 #ifdef CONFIG_FMAN_ENET 44 /* 45 * Mapping of all 18 SERDES lanes to board slots. A value of '0' here means 46 * that the mapping must be determined dynamically, or that the lane maps to 47 * something other than a board slot 48 */ 49 static u8 lane_to_slot[] = { 50 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0 51 }; 52 53 static int riser_phy_addr[] = { 54 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR, 55 CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR, 56 CONFIG_SYS_FM1_DTSEC3_RISER_PHY_ADDR, 57 CONFIG_SYS_FM1_DTSEC4_RISER_PHY_ADDR, 58 }; 59 60 /* 61 * Initialize the lane_to_slot[] array. 62 * 63 * On the P2040RDB board the mapping is controlled by CPLD register. 64 */ 65 static void initialize_lane_to_slot(void) 66 { 67 u8 mux = CPLD_READ(serdes_mux); 68 69 lane_to_slot[6] = (mux & SERDES_MUX_LANE_6_MASK) ? 0 : 1; 70 lane_to_slot[10] = (mux & SERDES_MUX_LANE_A_MASK) ? 0 : 2; 71 lane_to_slot[12] = (mux & SERDES_MUX_LANE_C_MASK) ? 0 : 2; 72 lane_to_slot[13] = (mux & SERDES_MUX_LANE_D_MASK) ? 0 : 2; 73 } 74 75 /* 76 * Given the following ... 77 * 78 * 1) A pointer to an Fman Ethernet node (as identified by the 'compat' 79 * compatible string and 'addr' physical address) 80 * 81 * 2) An Fman port 82 * 83 * ... update the phy-handle property of the Ethernet node to point to the 84 * right PHY. This assumes that we already know the PHY for each port. 85 * 86 * The offset of the Fman Ethernet node is also passed in for convenience, but 87 * it is not used, and we recalculate the offset anyway. 88 * 89 * Note that what we call "Fman ports" (enum fm_port) is really an Fman MAC. 90 * Inside the Fman, "ports" are things that connect to MACs. We only call them 91 * ports in U-Boot because on previous Ethernet devices (e.g. Gianfar), MACs 92 * and ports are the same thing. 93 * 94 */ 95 void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr, 96 enum fm_port port, int offset) 97 { 98 phy_interface_t intf = fm_info_get_enet_if(port); 99 char phy[16]; 100 101 /* The RGMII PHY is identified by the MAC connected to it */ 102 if (intf == PHY_INTERFACE_MODE_RGMII) { 103 sprintf(phy, "phy_rgmii_%u", port == FM1_DTSEC5 ? 0 : 1); 104 fdt_set_phy_handle(fdt, compat, addr, phy); 105 } 106 107 /* The SGMII PHY is identified by the MAC connected to it */ 108 if (intf == PHY_INTERFACE_MODE_SGMII) { 109 int lane = serdes_get_first_lane(SGMII_FM1_DTSEC1 + port); 110 u8 slot; 111 if (lane < 0) 112 return; 113 slot = lane_to_slot[lane]; 114 if (slot) { 115 sprintf(phy, "phy_sgmii_%x", 116 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR 117 + (port - FM1_DTSEC1)); 118 fdt_set_phy_handle(fdt, compat, addr, phy); 119 } else { 120 sprintf(phy, "phy_sgmii_%x", 121 CONFIG_SYS_FM1_DTSEC1_PHY_ADDR 122 + (port - FM1_DTSEC1)); 123 fdt_set_phy_handle(fdt, compat, addr, phy); 124 } 125 } 126 127 if (intf == PHY_INTERFACE_MODE_XGMII) { 128 /* XAUI */ 129 int lane = serdes_get_first_lane(XAUI_FM1); 130 if (lane >= 0) { 131 /* The XAUI PHY is identified by the slot */ 132 sprintf(phy, "phy_xgmii_%u", lane_to_slot[lane]); 133 fdt_set_phy_handle(fdt, compat, addr, phy); 134 } 135 } 136 } 137 #endif /* #ifdef CONFIG_FMAN_ENET */ 138 139 int board_eth_init(bd_t *bis) 140 { 141 #ifdef CONFIG_FMAN_ENET 142 struct fsl_pq_mdio_info dtsec_mdio_info; 143 struct tgec_mdio_info tgec_mdio_info; 144 unsigned int i, slot; 145 int lane; 146 147 printf("Initializing Fman\n"); 148 149 initialize_lane_to_slot(); 150 151 dtsec_mdio_info.regs = 152 (struct tsec_mii_mng *)CONFIG_SYS_FM1_DTSEC1_MDIO_ADDR; 153 dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME; 154 155 /* Register the real 1G MDIO bus */ 156 fsl_pq_mdio_init(bis, &dtsec_mdio_info); 157 158 tgec_mdio_info.regs = 159 (struct tgec_mdio_controller *)CONFIG_SYS_FM1_TGEC_MDIO_ADDR; 160 tgec_mdio_info.name = DEFAULT_FM_TGEC_MDIO_NAME; 161 162 /* Register the real 10G MDIO bus */ 163 fm_tgec_mdio_init(bis, &tgec_mdio_info); 164 165 /* 166 * Program the three on-board SGMII PHY addresses. If the SGMII Riser 167 * card used, we'll override the PHY address later. For any DTSEC that 168 * is RGMII, we'll also override its PHY address later. We assume that 169 * DTSEC4 and DTSEC5 are used for RGMII. 170 */ 171 fm_info_set_phy_address(FM1_DTSEC1, CONFIG_SYS_FM1_DTSEC1_PHY_ADDR); 172 fm_info_set_phy_address(FM1_DTSEC2, CONFIG_SYS_FM1_DTSEC2_PHY_ADDR); 173 fm_info_set_phy_address(FM1_DTSEC3, CONFIG_SYS_FM1_DTSEC3_PHY_ADDR); 174 175 for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) { 176 int idx = i - FM1_DTSEC1; 177 178 switch (fm_info_get_enet_if(i)) { 179 case PHY_INTERFACE_MODE_SGMII: 180 lane = serdes_get_first_lane(SGMII_FM1_DTSEC1 + idx); 181 if (lane < 0) 182 break; 183 slot = lane_to_slot[lane]; 184 if (slot) 185 fm_info_set_phy_address(i, riser_phy_addr[i]); 186 break; 187 case PHY_INTERFACE_MODE_RGMII: 188 /* Only DTSEC4 and DTSEC5 can be routed to RGMII */ 189 fm_info_set_phy_address(i, i == FM1_DTSEC5 ? 190 CONFIG_SYS_FM1_DTSEC5_PHY_ADDR : 191 CONFIG_SYS_FM1_DTSEC4_PHY_ADDR); 192 break; 193 default: 194 printf("Fman1: DTSEC%u set to unknown interface %i\n", 195 idx + 1, fm_info_get_enet_if(i)); 196 break; 197 } 198 199 fm_info_set_mdio(i, 200 miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME)); 201 } 202 203 lane = serdes_get_first_lane(XAUI_FM1); 204 if (lane >= 0) { 205 slot = lane_to_slot[lane]; 206 if (slot) 207 fm_info_set_phy_address(FM1_10GEC1, 208 CONFIG_SYS_FM1_10GEC1_PHY_ADDR); 209 } 210 211 fm_info_set_mdio(FM1_10GEC1, 212 miiphy_get_dev_by_name(DEFAULT_FM_TGEC_MDIO_NAME)); 213 cpu_eth_init(bis); 214 #endif 215 216 return pci_eth_init(bis); 217 } 218