Merged 405gp_enet.c and 440gx_enet.c to generic 4xx_enet.c
now handling all 4xx cpu's.
Patch by Stefan Roese, 16 Aug 2005
diff --git a/cpu/ppc4xx/miiphy.c b/cpu/ppc4xx/miiphy.c
index cb9dccd..24f9154 100644
--- a/cpu/ppc4xx/miiphy.c
+++ b/cpu/ppc4xx/miiphy.c
@@ -1,42 +1,44 @@
/*-----------------------------------------------------------------------------+
|
- | This source code has been made available to you by IBM on an AS-IS
- | basis. Anyone receiving this source is licensed under IBM
- | copyrights to use it in any way he or she deems fit, including
- | copying it, modifying it, compiling it, and redistributing it either
- | with or without modifications. No license under IBM patents or
- | patent applications is to be implied by the copyright license.
+ | This source code has been made available to you by IBM on an AS-IS
+ | basis. Anyone receiving this source is licensed under IBM
+ | copyrights to use it in any way he or she deems fit, including
+ | copying it, modifying it, compiling it, and redistributing it either
+ | with or without modifications. No license under IBM patents or
+ | patent applications is to be implied by the copyright license.
|
- | Any user of this software should understand that IBM cannot provide
- | technical support for this software and will not be responsible for
- | any consequences resulting from the use of this software.
+ | Any user of this software should understand that IBM cannot provide
+ | technical support for this software and will not be responsible for
+ | any consequences resulting from the use of this software.
|
- | Any person who transfers this source code or any derivative work
- | must include the IBM copyright notice, this paragraph, and the
- | preceding two paragraphs in the transferred software.
+ | Any person who transfers this source code or any derivative work
+ | must include the IBM copyright notice, this paragraph, and the
+ | preceding two paragraphs in the transferred software.
|
- | COPYRIGHT I B M CORPORATION 1995
- | LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+ | COPYRIGHT I B M CORPORATION 1995
+ | LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+-----------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------+
|
- | File Name: miiphy.c
+ | File Name: miiphy.c
|
- | Function: This module has utilities for accessing the MII PHY through
+ | Function: This module has utilities for accessing the MII PHY through
| the EMAC3 macro.
|
- | Author: Mark Wisner
+ | Author: Mark Wisner
|
| Change Activity-
|
- | Date Description of Change BY
- | --------- --------------------- ---
- | 05-May-99 Created MKW
- | 01-Jul-99 Changed clock setting of sta_reg from 66Mhz to 50Mhz to
- | better match OPB speed. Also modified delay times. JWB
- | 29-Jul-99 Added Full duplex support MKW
- | 24-Aug-99 Removed printf from dp83843_duplex() JWB
- | 19-Jul-00 Ported to esd cpci405 sr
+ | Date Description of Change BY
+ | --------- --------------------- ---
+ | 05-May-99 Created MKW
+ | 01-Jul-99 Changed clock setting of sta_reg from 66Mhz to 50Mhz to
+ | better match OPB speed. Also modified delay times. JWB
+ | 29-Jul-99 Added Full duplex support MKW
+ | 24-Aug-99 Removed printf from dp83843_duplex() JWB
+ | 19-Jul-00 Ported to esd cpci405 sr
+ | 23-Dec-03 Ported from miiphy.c to 440GX Travis Sawyer TBS
+ | <travis.sawyer@sandburst.com>
|
+-----------------------------------------------------------------------------*/
@@ -44,15 +46,13 @@
#include <asm/processor.h>
#include <ppc_asm.tmpl>
#include <commproc.h>
-#include <405gp_enet.h>
+#include <ppc4xx_enet.h>
#include <405_mal.h>
#include <miiphy.h>
-#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
- (defined(CONFIG_440) && !defined(CONFIG_NET_MULTI))
/***********************************************************/
-/* Dump out to the screen PHY regs */
+/* Dump out to the screen PHY regs */
/***********************************************************/
void miiphy_dump (unsigned char addr)
@@ -72,75 +72,127 @@
if (i == 0x07)
i = 0x0f;
- } /* end for loop */
-} /* end dump */
+ } /* end for loop */
+} /* end dump */
/***********************************************************/
-/* read a phy reg and return the value with a rc */
-/* Note: We are referencing to EMAC_STACR register */
-/* @(EMAC_BASE + 92) because of: */
-/* - 405EP has only STACR for EMAC0 pinned out */
-/* - 405GP has onle one EMAC0 */
-/* - For 440 this module gets compiled only for */
-/* !CONFIG_NET_MULTI, i.e. only EMAC0 is supported. */
+/* (Re)start autonegotiation */
/***********************************************************/
-
-int miiphy_read (unsigned char addr, unsigned char reg,
- unsigned short *value)
+int phy_setup_aneg (unsigned char addr)
{
- unsigned long sta_reg; /* STA scratch area */
- unsigned long i;
+ unsigned short ctl, adv;
+ /* Setup standard advertise */
+ miiphy_read (addr, PHY_ANAR, &adv);
+ adv |= (PHY_ANLPAR_ACK | PHY_ANLPAR_RF | PHY_ANLPAR_T4 |
+ PHY_ANLPAR_TXFD | PHY_ANLPAR_TX | PHY_ANLPAR_10FD |
+ PHY_ANLPAR_10);
+ miiphy_write (addr, PHY_ANAR, adv);
+
+ /* Start/Restart aneg */
+ miiphy_read (addr, PHY_BMCR, &ctl);
+ ctl |= (PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
+ miiphy_write (addr, PHY_BMCR, ctl);
+
+ return 0;
+}
+
+
+/***********************************************************/
+/* read a phy reg and return the value with a rc */
+/***********************************************************/
+unsigned int miiphy_getemac_offset (void)
+{
+#if defined(CONFIG_440) && defined(CONFIG_NET_MULTI)
+ unsigned long zmii;
+ unsigned long eoffset;
+
+ /* Need to find out which mdi port we're using */
+ zmii = in32 (ZMII_FER);
+
+ if (zmii & (ZMII_FER_MDI << ZMII_FER_V (0))) {
+ /* using port 0 */
+ eoffset = 0;
+ } else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (1))) {
+ /* using port 1 */
+ eoffset = 0x100;
+ } else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (2))) {
+ /* using port 2 */
+ eoffset = 0x400;
+ } else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (3))) {
+ /* using port 3 */
+ eoffset = 0x600;
+ } else {
+ /* None of the mdi ports are enabled! */
+ /* enable port 0 */
+ zmii |= ZMII_FER_MDI << ZMII_FER_V (0);
+ out32 (ZMII_FER, zmii);
+ eoffset = 0;
+ /* need to soft reset port 0 */
+ zmii = in32 (EMAC_M0);
+ zmii |= EMAC_M0_SRST;
+ out32 (EMAC_M0, zmii);
+ }
+
+ return (eoffset);
+#else
+ return 0;
+#endif
+}
+
+
+int miiphy_read (unsigned char addr, unsigned char reg, unsigned short *value)
+{
+ unsigned long sta_reg; /* STA scratch area */
+ unsigned long i;
+ unsigned long emac_reg;
+
+
+ emac_reg = miiphy_getemac_offset ();
/* see if it is ready for 1000 nsec */
i = 0;
/* see if it is ready for sec */
- while ((in32 (EMAC_STACR) & EMAC_STACR_OC) == 0) {
+ while ((in32 (EMAC_STACR + emac_reg) & EMAC_STACR_OC) == 0) {
udelay (7);
if (i > 5) {
-#if 0 /* test-only */
+#if 0
printf ("read err 1\n");
#endif
return -1;
}
i++;
}
- sta_reg = reg; /* reg address */
+ sta_reg = reg; /* reg address */
/* set clock (50Mhz) and read flags */
+#if defined(CONFIG_440GX)
+ sta_reg |= EMAC_STACR_READ;
+#else
sta_reg = (sta_reg | EMAC_STACR_READ) & ~EMAC_STACR_CLK_100MHZ;
-#ifdef CONFIG_PHY_CLK_FREQ
+#endif
+
+#if defined(CONFIG_PHY_CLK_FREQ) && !defined(CONFIG_440GX)
sta_reg = sta_reg | CONFIG_PHY_CLK_FREQ;
#endif
sta_reg = sta_reg | (addr << 5); /* Phy address */
- out32 (EMAC_STACR, sta_reg);
-#if 0 /* test-only */
+ out32 (EMAC_STACR + emac_reg, sta_reg);
+#if 0 /* test-only */
printf ("a2: write: EMAC_STACR=0x%0x\n", sta_reg); /* test-only */
#endif
-#ifdef CONFIG_PHY_CMD_DELAY
- udelay (CONFIG_PHY_CMD_DELAY); /* Intel LXT971A needs this */
-#endif
- sta_reg = in32 (EMAC_STACR);
+ sta_reg = in32 (EMAC_STACR + emac_reg);
i = 0;
while ((sta_reg & EMAC_STACR_OC) == 0) {
udelay (7);
if (i > 5) {
-#if 0 /* test-only */
- printf ("read err 2\n");
-#endif
return -1;
}
i++;
- sta_reg = in32 (EMAC_STACR);
+ sta_reg = in32 (EMAC_STACR + emac_reg);
}
if ((sta_reg & EMAC_STACR_PHYE) != 0) {
-#if 0 /* test-only */
- printf ("read err 3\n");
- printf ("a2: read: EMAC_STACR=0x%0lx, i=%d\n",
- sta_reg, (int) i); /* test-only */
-#endif
return -1;
}
@@ -148,58 +200,59 @@
return 0;
-} /* phy_read */
+} /* phy_read */
/***********************************************************/
-/* write a phy reg and return the value with a rc */
+/* write a phy reg and return the value with a rc */
/***********************************************************/
-int miiphy_write (unsigned char addr, unsigned char reg,
- unsigned short value)
+int miiphy_write (unsigned char addr, unsigned char reg, unsigned short value)
{
- unsigned long sta_reg; /* STA scratch area */
+ unsigned long sta_reg; /* STA scratch area */
unsigned long i;
+ unsigned long emac_reg;
+ emac_reg = miiphy_getemac_offset ();
/* see if it is ready for 1000 nsec */
i = 0;
- while ((in32 (EMAC_STACR) & EMAC_STACR_OC) == 0) {
+ while ((in32 (EMAC_STACR + emac_reg) & EMAC_STACR_OC) == 0) {
if (i > 5)
return -1;
udelay (7);
i++;
}
sta_reg = 0;
- sta_reg = reg; /* reg address */
+ sta_reg = reg; /* reg address */
/* set clock (50Mhz) and read flags */
+#if defined(CONFIG_440GX)
+ sta_reg |= EMAC_STACR_WRITE;
+#else
sta_reg = (sta_reg | EMAC_STACR_WRITE) & ~EMAC_STACR_CLK_100MHZ;
-#ifdef CONFIG_PHY_CLK_FREQ
- sta_reg = sta_reg | CONFIG_PHY_CLK_FREQ; /* Set clock frequency (PLB freq. dependend) */
+#endif
+
+#if defined(CONFIG_PHY_CLK_FREQ) && !defined(CONFIG_440GX)
+ sta_reg = sta_reg | CONFIG_PHY_CLK_FREQ; /* Set clock frequency (PLB freq. dependend) */
#endif
sta_reg = sta_reg | ((unsigned long) addr << 5); /* Phy address */
memcpy (&sta_reg, &value, 2); /* put in data */
- out32 (EMAC_STACR, sta_reg);
+ out32 (EMAC_STACR + emac_reg, sta_reg);
-#ifdef CONFIG_PHY_CMD_DELAY
- udelay (CONFIG_PHY_CMD_DELAY); /* Intel LXT971A needs this */
-#endif
/* wait for completion */
i = 0;
- sta_reg = in32 (EMAC_STACR);
+ sta_reg = in32 (EMAC_STACR + emac_reg);
while ((sta_reg & EMAC_STACR_OC) == 0) {
udelay (7);
if (i > 5)
return -1;
i++;
- sta_reg = in32 (EMAC_STACR);
+ sta_reg = in32 (EMAC_STACR + emac_reg);
}
if ((sta_reg & EMAC_STACR_PHYE) != 0)
return -1;
return 0;
-} /* phy_read */
-
-#endif /* CONFIG_405GP */
+} /* phy_write */