summaryrefslogtreecommitdiff
path: root/board/freescale/m54451evb/mii.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/freescale/m54451evb/mii.c')
-rw-r--r--board/freescale/m54451evb/mii.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/board/freescale/m54451evb/mii.c b/board/freescale/m54451evb/mii.c
deleted file mode 100644
index 6e24736..0000000
--- a/board/freescale/m54451evb/mii.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/*
- * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
- * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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
- */
-
-#include <common.h>
-#include <asm/fec.h>
-#include <asm/immap.h>
-
-#include <config.h>
-#include <net.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
-#undef MII_DEBUG
-#undef ET_DEBUG
-
-int fecpin_setclear(struct eth_device *dev, int setclear)
-{
- volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
- struct fec_info_s *info = (struct fec_info_s *)dev->priv;
-
- if (setclear) {
- gpio->par_feci2c |=
- (GPIO_PAR_FECI2C_MDC0_MDC0 | GPIO_PAR_FECI2C_MDIO0_MDIO0);
-
- if (info->iobase == CONFIG_SYS_FEC0_IOBASE)
- gpio->par_fec |= GPIO_PAR_FEC_FEC0_RMII_GPIO;
- else
- gpio->par_fec |= GPIO_PAR_FEC_FEC1_RMII_ATA;
- } else {
- gpio->par_feci2c &=
- ~(GPIO_PAR_FECI2C_MDC0_MDC0 | GPIO_PAR_FECI2C_MDIO0_MDIO0);
-
- if (info->iobase == CONFIG_SYS_FEC0_IOBASE)
- gpio->par_fec &= GPIO_PAR_FEC_FEC0_MASK;
- else
- gpio->par_fec &= GPIO_PAR_FEC_FEC1_MASK;
- }
- return 0;
-}
-
-#if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_CMD_MII)
-#include <miiphy.h>
-
-/* Make MII read/write commands for the FEC. */
-#define mk_mii_read(ADDR, REG) (0x60020000 | ((ADDR << 23) | (REG & 0x1f) << 18))
-
-#define mk_mii_write(ADDR, REG, VAL) (0x50020000 | ((ADDR << 23) | (REG & 0x1f) << 18) | (VAL & 0xffff))
-
-/* PHY identification */
-#define PHY_ID_KSZ8041NL 0x00221512
-#define STR_ID_KSZ8041NL "KSZ8041NL"
-
-/****************************************************************************
- * mii_init -- Initialize the MII for MII command without ethernet
- * This function is a subset of eth_init
- ****************************************************************************
- */
-void mii_reset(struct fec_info_s *info)
-{
- volatile fec_t *fecp = (fec_t *) (info->miibase);
- struct eth_device *dev;
- int i, miispd;
- u16 rst = 0;
-
- dev = eth_get_dev();
-
- miispd = (gd->bus_clk / 1000000) / 5;
- fecp->mscr = miispd << 1;
-
- miiphy_write(dev->name, info->phy_addr, PHY_BMCR, PHY_BMCR_RESET);
- for (i = 0; i < FEC_RESET_DELAY; ++i) {
- udelay(500);
- miiphy_read(dev->name, info->phy_addr, PHY_BMCR, &rst);
- if ((rst & PHY_BMCR_RESET) == 0)
- break;
- }
- if (i == FEC_RESET_DELAY)
- printf("Mii reset timeout %d\n", i);
-}
-
-/* send command to phy using mii, wait for result */
-uint mii_send(uint mii_cmd)
-{
- struct fec_info_s *info;
- struct eth_device *dev;
- volatile fec_t *ep;
- uint mii_reply;
- int j = 0;
-
- /* retrieve from register structure */
- dev = eth_get_dev();
- info = dev->priv;
-
- ep = (fec_t *) info->miibase;
-
- ep->mmfr = mii_cmd; /* command to phy */
-
- /* wait for mii complete */
- while (!(ep->eir & FEC_EIR_MII) && (j < MCFFEC_TOUT_LOOP)) {
- udelay(1);
- j++;
- }
- if (j >= MCFFEC_TOUT_LOOP) {
- printf("MII not complete\n");
- return -1;
- }
-
- mii_reply = ep->mmfr; /* result from phy */
- ep->eir = FEC_EIR_MII; /* clear MII complete */
-#ifdef ET_DEBUG
- printf("%s[%d] %s: sent=0x%8.8x, reply=0x%8.8x\n",
- __FILE__, __LINE__, __FUNCTION__, mii_cmd, mii_reply);
-#endif
-
- return (mii_reply & 0xffff); /* data read from phy */
-}
-#endif /* CONFIG_SYS_DISCOVER_PHY || (CONFIG_MII) */
-
-#if defined(CONFIG_SYS_DISCOVER_PHY)
-int mii_discover_phy(struct eth_device *dev)
-{
-#define MAX_PHY_PASSES 11
- struct fec_info_s *info = dev->priv;
- int phyaddr, pass;
- uint phyno, phytype;
-
- if (info->phyname_init)
- return info->phy_addr;
-
- phyaddr = -1; /* didn't find a PHY yet */
- for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) {
- if (pass > 1) {
- /* PHY may need more time to recover from reset.
- * The LXT970 needs 50ms typical, no maximum is
- * specified, so wait 10ms before try again.
- * With 11 passes this gives it 100ms to wake up.
- */
- udelay(10000); /* wait 10ms */
- }
-
- for (phyno = 0; phyno < 32 && phyaddr < 0; ++phyno) {
-
- phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR1));
-#ifdef ET_DEBUG
- printf("PHY type 0x%x pass %d type\n", phytype, pass);
-#endif
- if (phytype != 0xffff) {
- phyaddr = phyno;
- phytype <<= 16;
- phytype |=
- mii_send(mk_mii_read(phyno, PHY_PHYIDR2));
-
- switch (phytype & 0xffffffff) {
- case PHY_ID_KSZ8041NL:
- strcpy(info->phy_name,
- STR_ID_KSZ8041NL);
- info->phyname_init = 1;
- break;
- default:
- strcpy(info->phy_name, "unknown");
- info->phyname_init = 1;
- break;
- }
-
-#ifdef ET_DEBUG
- printf("PHY @ 0x%x pass %d type ", phyno, pass);
- switch (phytype & 0xffffffff) {
- case PHY_ID_KSZ8041NL:
- printf(STR_ID_KSZ8041NL);
- break;
- default:
- printf("0x%08x\n", phytype);
- break;
- }
-#endif
- }
- }
- }
- if (phyaddr < 0)
- printf("No PHY device found.\n");
-
- return phyaddr;
-}
-#endif /* CONFIG_SYS_DISCOVER_PHY */
-
-void mii_init(void) __attribute__ ((weak, alias("__mii_init")));
-
-void __mii_init(void)
-{
- volatile fec_t *fecp;
- struct fec_info_s *info;
- struct eth_device *dev;
- int miispd = 0, i = 0;
- u16 autoneg = 0;
-
- /* retrieve from register structure */
- dev = eth_get_dev();
- info = dev->priv;
-
- fecp = (fec_t *) info->miibase;
-
- /* We use strictly polling mode only */
- fecp->eimr = 0;
-
- /* Clear any pending interrupt */
- fecp->eir = 0xffffffff;
-
- /* Set MII speed */
- miispd = (gd->bus_clk / 1000000) / 5;
- fecp->mscr = miispd << 1;
-
- info->phy_addr = mii_discover_phy(dev);
-
-#define AUTONEGLINK (PHY_BMSR_AUTN_COMP | PHY_BMSR_LS)
- while (i < MCFFEC_TOUT_LOOP) {
- autoneg = 0;
- miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &autoneg);
- i++;
-
- if ((autoneg & AUTONEGLINK) == AUTONEGLINK)
- break;
-
- udelay(500);
- }
- if (i >= MCFFEC_TOUT_LOOP) {
- printf("Auto Negotiation not complete\n");
- }
-
- /* adapt to the half/full speed settings */
- info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16;
- info->dup_spd |= miiphy_speed(dev->name, info->phy_addr);
-}
-
-/*****************************************************************************
- * Read and write a MII PHY register, routines used by MII Utilities
- *
- * FIXME: These routines are expected to return 0 on success, but mii_send
- * does _not_ return an error code. Maybe 0xFFFF means error, i.e.
- * no PHY connected...
- * For now always return 0.
- * FIXME: These routines only work after calling eth_init() at least once!
- * Otherwise they hang in mii_send() !!! Sorry!
- *****************************************************************************/
-
-int mcffec_miiphy_read(char *devname, unsigned char addr, unsigned char reg,
- unsigned short *value)
-{
- short rdreg; /* register working value */
-
-#ifdef MII_DEBUG
- printf("miiphy_read(0x%x) @ 0x%x = ", reg, addr);
-#endif
- rdreg = mii_send(mk_mii_read(addr, reg));
-
- *value = rdreg;
-
-#ifdef MII_DEBUG
- printf("0x%04x\n", *value);
-#endif
-
- return 0;
-}
-
-int mcffec_miiphy_write(char *devname, unsigned char addr, unsigned char reg,
- unsigned short value)
-{
- short rdreg; /* register working value */
-
-#ifdef MII_DEBUG
- printf("miiphy_write(0x%x) @ 0x%x = ", reg, addr);
-#endif
-
- rdreg = mii_send(mk_mii_write(addr, reg, value));
-
-#ifdef MII_DEBUG
- printf("0x%04x\n", value);
-#endif
-
- return 0;
-}
-
-#endif /* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */
generated by cgit v1.1 at 2024-11-18 20:52:25 +0000