1 /* 2 * Copyright 2009-2011 Freescale Semiconductor, Inc. 3 * Dave Liu <daveliu@freescale.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 /* MAXFRM - maximum frame length */ 9 #define MAXFRM_MASK 0x0000ffff 10 11 #include <common.h> 12 #include <phy.h> 13 #include <asm/types.h> 14 #include <asm/io.h> 15 #include <asm/fsl_enet.h> 16 #include <asm/fsl_tgec.h> 17 18 #include "fm.h" 19 20 #define TGEC_CMD_CFG_INIT (TGEC_CMD_CFG_NO_LEN_CHK | \ 21 TGEC_CMD_CFG_RX_ER_DISC | \ 22 TGEC_CMD_CFG_STAT_CLR | \ 23 TGEC_CMD_CFG_PAUSE_IGNORE | \ 24 TGEC_CMD_CFG_CRC_FWD) 25 #define TGEC_CMD_CFG_FINAL (TGEC_CMD_CFG_NO_LEN_CHK | \ 26 TGEC_CMD_CFG_RX_ER_DISC | \ 27 TGEC_CMD_CFG_PAUSE_IGNORE | \ 28 TGEC_CMD_CFG_CRC_FWD) 29 30 static void tgec_init_mac(struct fsl_enet_mac *mac) 31 { 32 struct tgec *regs = mac->base; 33 34 /* mask all interrupt */ 35 out_be32(®s->imask, IMASK_MASK_ALL); 36 37 /* clear all events */ 38 out_be32(®s->ievent, IEVENT_CLEAR_ALL); 39 40 /* set the max receive length */ 41 out_be32(®s->maxfrm, mac->max_rx_len & MAXFRM_MASK); 42 43 /* 44 * 1588 disable, insert second mac disable payload length check 45 * disable, normal operation, any rx error frame is discarded, clear 46 * counters, pause frame ignore, no promiscuous, LAN mode Rx CRC no 47 * strip, Tx CRC append, Rx disable and Tx disable 48 */ 49 out_be32(®s->command_config, TGEC_CMD_CFG_INIT); 50 udelay(1000); 51 out_be32(®s->command_config, TGEC_CMD_CFG_FINAL); 52 53 /* multicast frame reception for the hash entry disable */ 54 out_be32(®s->hashtable_ctrl, 0); 55 } 56 57 static void tgec_enable_mac(struct fsl_enet_mac *mac) 58 { 59 struct tgec *regs = mac->base; 60 61 setbits_be32(®s->command_config, TGEC_CMD_CFG_RXTX_EN); 62 } 63 64 static void tgec_disable_mac(struct fsl_enet_mac *mac) 65 { 66 struct tgec *regs = mac->base; 67 68 clrbits_be32(®s->command_config, TGEC_CMD_CFG_RXTX_EN); 69 } 70 71 static void tgec_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr) 72 { 73 struct tgec *regs = mac->base; 74 u32 mac_addr0, mac_addr1; 75 76 /* 77 * if a station address of 0x12345678ABCD, perform a write to 78 * MAC_ADDR0 of 0x78563412, MAC_ADDR1 of 0x0000CDAB 79 */ 80 mac_addr0 = (mac_addr[3] << 24) | (mac_addr[2] << 16) | \ 81 (mac_addr[1] << 8) | (mac_addr[0]); 82 out_be32(®s->mac_addr_0, mac_addr0); 83 84 mac_addr1 = ((mac_addr[5] << 8) | mac_addr[4]) & 0x0000ffff; 85 out_be32(®s->mac_addr_1, mac_addr1); 86 } 87 88 static void tgec_set_interface_mode(struct fsl_enet_mac *mac, 89 phy_interface_t type, int speed) 90 { 91 /* nothing right now */ 92 return; 93 } 94 95 void init_tgec(struct fsl_enet_mac *mac, void *base, 96 void *phyregs, int max_rx_len) 97 { 98 mac->base = base; 99 mac->phyregs = phyregs; 100 mac->max_rx_len = max_rx_len; 101 mac->init_mac = tgec_init_mac; 102 mac->enable_mac = tgec_enable_mac; 103 mac->disable_mac = tgec_disable_mac; 104 mac->set_mac_addr = tgec_set_mac_addr; 105 mac->set_if_mode = tgec_set_interface_mode; 106 } 107