All CF platforms' mii.c are consolidated into one Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>master
TsiChung Liew
17 years ago
committed by
Ben Warren
parent
25a859066b
commit
54bdcc9fb6
@ -0,0 +1,321 @@ |
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/*
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* Copyright (C) 2004-2008 Freescale Semiconductor, Inc. |
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* TsiChung Liew (Tsi-Chung.Liew@freescale.com) |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#include <config.h> |
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#include <net.h> |
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#include <netdev.h> |
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#ifdef CONFIG_MCF547x_8x |
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#include <asm/fsl_mcdmafec.h> |
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#else |
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#include <asm/fec.h> |
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#endif |
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#include <asm/immap.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) |
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#undef MII_DEBUG |
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#undef ET_DEBUG |
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/*extern int fecpin_setclear(struct eth_device *dev, int setclear);*/ |
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#if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_CMD_MII) |
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#include <miiphy.h> |
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/* Make MII read/write commands for the FEC. */ |
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#define mk_mii_read(ADDR, REG) (0x60020000 | ((ADDR << 23) | \ |
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(REG & 0x1f) << 18)) |
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#define mk_mii_write(ADDR, REG, VAL) (0x50020000 | ((ADDR << 23) | \ |
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(REG & 0x1f) << 18) | (VAL & 0xffff)) |
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#ifndef CONFIG_SYS_UNSPEC_PHYID |
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# define CONFIG_SYS_UNSPEC_PHYID 0 |
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#endif |
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#ifndef CONFIG_SYS_UNSPEC_STRID |
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# define CONFIG_SYS_UNSPEC_STRID 0 |
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#endif |
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#ifdef CONFIG_MCF547x_8x |
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typedef struct fec_info_dma FEC_INFO_T; |
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#define FEC_T fecdma_t |
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#else |
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typedef struct fec_info_s FEC_INFO_T; |
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#define FEC_T fec_t |
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#endif |
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typedef struct phy_info_struct { |
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u32 phyid; |
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char *strid; |
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} phy_info_t; |
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phy_info_t phyinfo[] = { |
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{0x0022561B, "AMD79C784VC"}, /* AMD 79C784VC */ |
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{0x00406322, "BCM5222"}, /* Broadcom 5222 */ |
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{0x02a80150, "Intel82555"}, /* Intel 82555 */ |
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{0x0016f870, "LSI80225"}, /* LSI 80225 */ |
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{0x0016f880, "LSI80225/B"}, /* LSI 80225/B */ |
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{0x78100000, "LXT970"}, /* LXT970 */ |
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{0x001378e0, "LXT971"}, /* LXT971 and 972 */ |
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{0x00221619, "KS8721BL"}, /* Micrel KS8721BL/SL */ |
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{0x00221512, "KSZ8041NL"}, /* Micrel KSZ8041NL */ |
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{0x20005CE1, "N83640"}, /* National 83640 */ |
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{0x20005C90, "N83848"}, /* National 83848 */ |
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{0x20005CA2, "N83849"}, /* National 83849 */ |
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{0x01814400, "QS6612"}, /* QS6612 */ |
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#if defined(CONFIG_SYS_UNSPEC_PHYID) && defined(CONFIG_SYS_UNSPEC_STRID) |
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{CONFIG_SYS_UNSPEC_PHYID, CONFIG_SYS_UNSPEC_STRID}, |
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#endif |
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{0, 0} |
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}; |
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/*
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* mii_init -- Initialize the MII for MII command without ethernet |
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* This function is a subset of eth_init |
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*/ |
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void mii_reset(FEC_INFO_T *info) |
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{ |
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volatile FEC_T *fecp = (FEC_T *) (info->miibase); |
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int i; |
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fecp->ecr = FEC_ECR_RESET; |
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for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) { |
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udelay(1); |
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} |
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if (i == FEC_RESET_DELAY) |
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printf("FEC_RESET_DELAY timeout\n"); |
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} |
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/* send command to phy using mii, wait for result */ |
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uint mii_send(uint mii_cmd) |
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{ |
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FEC_INFO_T *info; |
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volatile FEC_T *ep; |
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struct eth_device *dev; |
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uint mii_reply; |
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int j = 0; |
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/* retrieve from register structure */ |
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dev = eth_get_dev(); |
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info = dev->priv; |
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ep = (FEC_T *) info->miibase; |
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ep->mmfr = mii_cmd; /* command to phy */ |
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/* wait for mii complete */ |
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while (!(ep->eir & FEC_EIR_MII) && (j < MCFFEC_TOUT_LOOP)) { |
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udelay(1); |
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j++; |
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} |
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if (j >= MCFFEC_TOUT_LOOP) { |
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printf("MII not complete\n"); |
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return -1; |
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} |
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mii_reply = ep->mmfr; /* result from phy */ |
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ep->eir = FEC_EIR_MII; /* clear MII complete */ |
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#ifdef ET_DEBUG |
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printf("%s[%d] %s: sent=0x%8.8x, reply=0x%8.8x\n", |
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__FILE__, __LINE__, __FUNCTION__, mii_cmd, mii_reply); |
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#endif |
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return (mii_reply & 0xffff); /* data read from phy */ |
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} |
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#endif /* CONFIG_SYS_DISCOVER_PHY || (CONFIG_MII) */ |
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#if defined(CONFIG_SYS_DISCOVER_PHY) |
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int mii_discover_phy(struct eth_device *dev) |
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{ |
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#define MAX_PHY_PASSES 11 |
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FEC_INFO_T *info = dev->priv; |
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int phyaddr, pass; |
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uint phyno, phytype; |
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int i, found = 0; |
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if (info->phyname_init) |
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return info->phy_addr; |
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phyaddr = -1; /* didn't find a PHY yet */ |
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for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) { |
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if (pass > 1) { |
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/* PHY may need more time to recover from reset.
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* The LXT970 needs 50ms typical, no maximum is |
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* specified, so wait 10ms before try again. |
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* With 11 passes this gives it 100ms to wake up. |
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*/ |
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udelay(10000); /* wait 10ms */ |
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} |
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for (phyno = 0; phyno < 32 && phyaddr < 0; ++phyno) { |
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phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR1)); |
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#ifdef ET_DEBUG |
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printf("PHY type 0x%x pass %d type\n", phytype, pass); |
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#endif |
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if (phytype != 0xffff) { |
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phyaddr = phyno; |
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phytype <<= 16; |
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phytype |= |
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mii_send(mk_mii_read(phyno, PHY_PHYIDR2)); |
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#ifdef ET_DEBUG |
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printf("PHY @ 0x%x pass %d\n", phyno, pass); |
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#endif |
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for (i = 0; i < (sizeof(phyinfo) / sizeof(phy_info_t)); i++) { |
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if (phyinfo[i].phyid == phytype) { |
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#ifdef ET_DEBUG |
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printf("phyid %x - %s\n", |
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phyinfo[i].phyid, |
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phyinfo[i].strid); |
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#endif |
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strcpy(info->phy_name, phyinfo[i].strid); |
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info->phyname_init = 1; |
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found = 1; |
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break; |
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} |
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} |
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if (!found) { |
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#ifdef ET_DEBUG |
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printf("0x%08x\n", phytype); |
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#endif |
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strcpy(info->phy_name, "unknown"); |
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info->phyname_init = 1; |
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break; |
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} |
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} |
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} |
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} |
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if (phyaddr < 0) |
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printf("No PHY device found.\n"); |
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return phyaddr; |
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} |
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#endif /* CONFIG_SYS_DISCOVER_PHY */ |
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void mii_init(void) __attribute__((weak,alias("__mii_init"))); |
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void __mii_init(void) |
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{ |
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FEC_INFO_T *info; |
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volatile FEC_T *fecp; |
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struct eth_device *dev; |
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int miispd = 0, i = 0; |
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u16 autoneg = 0; |
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/* retrieve from register structure */ |
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dev = eth_get_dev(); |
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info = dev->priv; |
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fecp = (FEC_T *) info->miibase; |
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fecpin_setclear(dev, 1); |
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mii_reset(info); |
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/* We use strictly polling mode only */ |
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fecp->eimr = 0; |
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/* Clear any pending interrupt */ |
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fecp->eir = 0xffffffff; |
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/* Set MII speed */ |
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miispd = (gd->bus_clk / 1000000) / 5; |
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fecp->mscr = miispd << 1; |
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info->phy_addr = mii_discover_phy(dev); |
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#define AUTONEGLINK (PHY_BMSR_AUTN_COMP | PHY_BMSR_LS) |
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while (i < MCFFEC_TOUT_LOOP) { |
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autoneg = 0; |
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miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &autoneg); |
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i++; |
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if ((autoneg & AUTONEGLINK) == AUTONEGLINK) |
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break; |
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udelay(500); |
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} |
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if (i >= MCFFEC_TOUT_LOOP) { |
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printf("Auto Negotiation not complete\n"); |
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} |
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/* adapt to the half/full speed settings */ |
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info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16; |
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info->dup_spd |= miiphy_speed(dev->name, info->phy_addr); |
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} |
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/*
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* Read and write a MII PHY register, routines used by MII Utilities |
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* |
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* FIXME: These routines are expected to return 0 on success, but mii_send |
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* does _not_ return an error code. Maybe 0xFFFF means error, i.e. |
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* no PHY connected... |
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* For now always return 0. |
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* FIXME: These routines only work after calling eth_init() at least once! |
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* Otherwise they hang in mii_send() !!! Sorry! |
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*/ |
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int mcffec_miiphy_read(char *devname, unsigned char addr, unsigned char reg, |
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unsigned short *value) |
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{ |
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short rdreg; /* register working value */ |
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#ifdef MII_DEBUG |
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printf("miiphy_read(0x%x) @ 0x%x = ", reg, addr); |
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#endif |
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rdreg = mii_send(mk_mii_read(addr, reg)); |
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*value = rdreg; |
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#ifdef MII_DEBUG |
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printf("0x%04x\n", *value); |
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#endif |
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return 0; |
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} |
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int mcffec_miiphy_write(char *devname, unsigned char addr, unsigned char reg, |
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unsigned short value) |
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{ |
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short rdreg; /* register working value */ |
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#ifdef MII_DEBUG |
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printf("miiphy_write(0x%x) @ 0x%x = ", reg, addr); |
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#endif |
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rdreg = mii_send(mk_mii_write(addr, reg, value)); |
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#ifdef MII_DEBUG |
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printf("0x%04x\n", value); |
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#endif |
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return 0; |
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} |
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#endif /* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */ |
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