diff options
Diffstat (limited to 'drivers/net/fm/tgec.c')
| -rw-r--r-- | drivers/net/fm/tgec.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/net/fm/tgec.c b/drivers/net/fm/tgec.c new file mode 100644 index 0000000..6c1d471 --- /dev/null +++ b/drivers/net/fm/tgec.c @@ -0,0 +1,119 @@ +/* + * Copyright 2009-2011 Freescale Semiconductor, Inc. + * Dave Liu <daveliu@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_tgec.h> + +#include "fm.h" + +#define TGEC_CMD_CFG_INIT (TGEC_CMD_CFG_NO_LEN_CHK | \ + TGEC_CMD_CFG_RX_ER_DISC | \ + TGEC_CMD_CFG_STAT_CLR | \ + TGEC_CMD_CFG_PAUSE_IGNORE | \ + TGEC_CMD_CFG_CRC_FWD) +#define TGEC_CMD_CFG_FINAL (TGEC_CMD_CFG_NO_LEN_CHK | \ + TGEC_CMD_CFG_RX_ER_DISC | \ + TGEC_CMD_CFG_PAUSE_IGNORE | \ + TGEC_CMD_CFG_CRC_FWD) + +static void tgec_init_mac(struct fsl_enet_mac *mac) +{ + struct tgec *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); + + /* + * 1588 disable, insert second mac disable payload length check + * disable, normal operation, any rx error frame is discarded, clear + * counters, pause frame ignore, no promiscuous, LAN mode Rx CRC no + * strip, Tx CRC append, Rx disable and Tx disable + */ + out_be32(®s->command_config, TGEC_CMD_CFG_INIT); + udelay(1000); + out_be32(®s->command_config, TGEC_CMD_CFG_FINAL); + + /* multicast frame reception for the hash entry disable */ + out_be32(®s->hashtable_ctrl, 0); +} + +static void tgec_enable_mac(struct fsl_enet_mac *mac) +{ + struct tgec *regs = mac->base; + + setbits_be32(®s->command_config, TGEC_CMD_CFG_RXTX_EN); +} + +static void tgec_disable_mac(struct fsl_enet_mac *mac) +{ + struct tgec *regs = mac->base; + + clrbits_be32(®s->command_config, TGEC_CMD_CFG_RXTX_EN); +} + +static void tgec_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr) +{ + struct tgec *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 tgec_set_interface_mode(struct fsl_enet_mac *mac, + phy_interface_t type, int speed) +{ + /* nothing right now */ + return; +} + +void init_tgec(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 = tgec_init_mac; + mac->enable_mac = tgec_enable_mac; + mac->disable_mac = tgec_disable_mac; + mac->set_mac_addr = tgec_set_mac_addr; + mac->set_if_mode = tgec_set_interface_mode; +} |