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/*-
* Copyright (c) 2003-2009 RMI Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of RMI Corporation, nor the names of its contributors,
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* RMI_BSD */
/* MDIO Low level Access routines */
/* All Phy's accessed from GMAC0 base */
#ifndef _XGMAC_MDIO_H_
#define _XGMAC_MDIO_H_
static inline int
xmdio_read(volatile unsigned int *_mmio,
uint32_t phy_addr, uint32_t address);
static inline void
xmdio_write(volatile unsigned int *_mmio,
uint32_t phy_addr, uint32_t address, uint32_t data);
static inline void
xmdio_address(volatile unsigned int *_mmio,
uint32_t phy_addr, uint32_t dev_ad, uint32_t address);
static inline void
xmdio_address(volatile unsigned int *_mmio,
uint32_t phy_addr, uint32_t dev_ad, uint32_t address)
{
uint32_t st_field = 0x0;
uint32_t op_type = 0x0; /* address operation */
uint32_t ta_field = 0x2;/* ta field */
_mmio[0x11] = ((st_field & 0x3) << 30) |
((op_type & 0x3) << 28) |
((phy_addr & 0x1F) << 23) |
((dev_ad & 0x1F) << 18) |
((ta_field & 0x3) << 16) |
((address & 0xffff) << 0);
_mmio[0x10] = (0x0 << 3) | 0x5;
_mmio[0x10] = (0x1 << 3) | 0x5;
_mmio[0x10] = (0x0 << 3) | 0x5;
/* wait for dev_ad cycle to complete */
while (_mmio[0x14] & 0x1) {
};
}
/* function prototypes */
static inline int
xmdio_read(volatile unsigned int *_mmio,
uint32_t phy_addr, uint32_t address)
{
uint32_t st_field = 0x0;
uint32_t op_type = 0x3; /* read operation */
uint32_t ta_field = 0x2;/* ta field */
uint32_t data = 0;
xmdio_address(_mmio, phy_addr, 5, address);
_mmio[0x11] = ((st_field & 0x3) << 30) |
((op_type & 0x3) << 28) |
((phy_addr & 0x1F) << 23) |
((5 & 0x1F) << 18) |
((ta_field & 0x3) << 16) |
((data & 0xffff) << 0);
_mmio[0x10] = (0x0 << 3) | 0x5;
_mmio[0x10] = (0x1 << 3) | 0x5;
_mmio[0x10] = (0x0 << 3) | 0x5;
/* wait for write cycle to complete */
while (_mmio[0x14] & 0x1) {
};
data = _mmio[0x11] & 0xffff;
return (data);
}
static inline void
xmdio_write(volatile unsigned int *_mmio,
uint32_t phy_addr, uint32_t address, uint32_t data)
{
uint32_t st_field = 0x0;
uint32_t op_type = 0x1; /* write operation */
uint32_t ta_field = 0x2;/* ta field */
xmdio_address(_mmio, phy_addr, 5, address);
_mmio[0x11] = ((st_field & 0x3) << 30) |
((op_type & 0x3) << 28) |
((phy_addr & 0x1F) << 23) |
((5 & 0x1F) << 18) |
((ta_field & 0x3) << 16) |
((data & 0xffff) << 0);
_mmio[0x10] = (0x0 << 3) | 0x5;
_mmio[0x10] = (0x1 << 3) | 0x5;
_mmio[0x10] = (0x0 << 3) | 0x5;
/* wait for write cycle to complete */
while (_mmio[0x14] & 0x1) {
};
}
#endif