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/*
* Copyright 2012 Freescale Semiconductor, Inc.
* Roy Zang <tie-fei.zang@freescale.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/* MAXFRM - maximum frame length */
#define MAXFRM_MASK 0x0000ffff
#include <common.h>
#include <phy.h>
#include <asm/types.h>
#include <asm/io.h>
#include <asm/fsl_enet.h>
#include <asm/fsl_memac.h>
#include "fm.h"
static void memac_init_mac(struct fsl_enet_mac *mac)
{
struct memac *regs = mac->base;
/* mask all interrupt */
out_be32(®s->imask, IMASK_MASK_ALL);
/* clear all events */
out_be32(®s->ievent, IEVENT_CLEAR_ALL);
/* set the max receive length */
out_be32(®s->maxfrm, mac->max_rx_len & MAXFRM_MASK);
/* multicast frame reception for the hash entry disable */
out_be32(®s->hashtable_ctrl, 0);
}
static void memac_enable_mac(struct fsl_enet_mac *mac)
{
struct memac *regs = mac->base;
setbits_be32(®s->command_config, MEMAC_CMD_CFG_RXTX_EN);
}
static void memac_disable_mac(struct fsl_enet_mac *mac)
{
struct memac *regs = mac->base;
clrbits_be32(®s->command_config, MEMAC_CMD_CFG_RXTX_EN);
}
static void memac_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr)
{
struct memac *regs = mac->base;
u32 mac_addr0, mac_addr1;
/*
* if a station address of 0x12345678ABCD, perform a write to
* MAC_ADDR0 of 0x78563412, MAC_ADDR1 of 0x0000CDAB
*/
mac_addr0 = (mac_addr[3] << 24) | (mac_addr[2] << 16) | \
(mac_addr[1] << 8) | (mac_addr[0]);
out_be32(®s->mac_addr_0, mac_addr0);
mac_addr1 = ((mac_addr[5] << 8) | mac_addr[4]) & 0x0000ffff;
out_be32(®s->mac_addr_1, mac_addr1);
}
static void memac_set_interface_mode(struct fsl_enet_mac *mac,
phy_interface_t type, int speed)
{
/* Roy need more work here */
struct memac *regs = mac->base;
u32 if_mode, if_status;
/* clear all bits relative with interface mode */
if_mode = in_be32(®s->if_mode);
if_status = in_be32(®s->if_status);
/* set interface mode */
switch (type) {
case PHY_INTERFACE_MODE_GMII:
if_mode &= ~IF_MODE_MASK;
if_mode |= IF_MODE_GMII;
break;
case PHY_INTERFACE_MODE_RGMII:
if_mode |= (IF_MODE_GMII | IF_MODE_RG);
break;
case PHY_INTERFACE_MODE_RMII:
if_mode |= (IF_MODE_GMII | IF_MODE_RM);
break;
case PHY_INTERFACE_MODE_SGMII:
if_mode &= ~IF_MODE_MASK;
if_mode |= (IF_MODE_GMII);
break;
default:
break;
}
/* Enable automatic speed selection */
if_mode |= IF_MODE_EN_AUTO;
debug(" %s, if_mode = %x\n", __func__, if_mode);
debug(" %s, if_status = %x\n", __func__, if_status);
out_be32(®s->if_mode, if_mode);
return;
}
void init_memac(struct fsl_enet_mac *mac, void *base,
void *phyregs, int max_rx_len)
{
mac->base = base;
mac->phyregs = phyregs;
mac->max_rx_len = max_rx_len;
mac->init_mac = memac_init_mac;
mac->enable_mac = memac_enable_mac;
mac->disable_mac = memac_disable_mac;
mac->set_mac_addr = memac_set_mac_addr;
mac->set_if_mode = memac_set_interface_mode;
}
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