u-boot/board/freescale/mpc8568mds/bcsr.c
Anton Vorontsov ad162249cb MPC8568E-MDS: reset UCCs to use them reliably
In order to use GETH1 and GETH2 on the MPC8568E-MDS, we should reset
UCCs.

p.s Similar code exists in the Linux kernel board file (for capability
reasons with older U-Boots), but should be removed some day.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
2008-01-09 16:25:03 -06:00

77 lines
2 KiB
C

/*
* Copyright 2007 Freescale Semiconductor.
*
* 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/io.h>
#include "bcsr.h"
void enable_8568mds_duart()
{
volatile uint* duart_mux = (uint *)(CFG_CCSRBAR + 0xe0060);
volatile uint* devices = (uint *)(CFG_CCSRBAR + 0xe0070);
volatile u8 *bcsr = (u8 *)(CFG_BCSR);
*duart_mux = 0x80000000; /* Set the mux to Duart on PMUXCR */
*devices = 0; /* Enable all peripheral devices */
bcsr[5] |= 0x01; /* Enable Duart in BCSR*/
}
void enable_8568mds_flash_write()
{
volatile u8 *bcsr = (u8 *)(CFG_BCSR);
bcsr[9] |= 0x01;
}
void disable_8568mds_flash_write()
{
volatile u8 *bcsr = (u8 *)(CFG_BCSR);
bcsr[9] &= ~(0x01);
}
void enable_8568mds_qe_mdio()
{
u8 *bcsr = (u8 *)(CFG_BCSR);
bcsr[7] |= 0x01;
}
#if defined(CONFIG_UEC_ETH1) || defined(CONFIG_UEC_ETH2)
void reset_8568mds_uccs(void)
{
volatile u8 *bcsr = (u8 *)(CFG_BCSR);
/* Turn off UCC1 & UCC2 */
out_8(&bcsr[8], in_8(&bcsr[8]) & ~BCSR_UCC1_GETH_EN);
out_8(&bcsr[9], in_8(&bcsr[9]) & ~BCSR_UCC2_GETH_EN);
/* Mode is RGMII, all bits clear */
out_8(&bcsr[11], in_8(&bcsr[11]) & ~(BCSR_UCC1_MODE_MSK |
BCSR_UCC2_MODE_MSK));
/* Turn UCC1 & UCC2 on */
out_8(&bcsr[8], in_8(&bcsr[8]) | BCSR_UCC1_GETH_EN);
out_8(&bcsr[9], in_8(&bcsr[9]) | BCSR_UCC2_GETH_EN);
}
#endif