LXR uboot/drivers/net/fm/tgec.c

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