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/*
* (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
#include <asm/io.h>
#include "vct.h"
/*
* EBI initialization for SMC911x access
*/
int ebi_init_smc911x(void)
{
reg_write(EBI_DEV1_CONFIG1(EBI_BASE), 0x00003020);
reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F);
reg_write(EBI_DEV1_TIM1_RD1(EBI_BASE), 0x00501100);
reg_write(EBI_DEV1_TIM1_RD2(EBI_BASE), 0x0FF02111);
reg_write(EBI_DEV1_TIM_EXT(EBI_BASE), 0xFFF00000);
reg_write(EBI_DEV1_EXT_ACC(EBI_BASE), 0x0FFFFFFF);
reg_write(EBI_DEV1_TIM1_WR1(EBI_BASE), 0x05001100);
reg_write(EBI_DEV1_TIM1_WR2(EBI_BASE), 0x3FC21110);
return 0;
}
/*
* Accessor functions replacing the "weak" functions in
* drivers/net/smc911x.c
*/
u32 smc911x_reg_read(struct eth_device *dev, u32 addr)
{
volatile u32 data;
addr += dev->iobase;
reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F);
ebi_wait();
reg_write(EBI_CPU_IO_ACCS(EBI_BASE), (EXT_DEVICE_CHANNEL_1 | addr));
ebi_wait();
data = reg_read(EBI_IO_ACCS_DATA(EBI_BASE));
return (data);
}
void smc911x_reg_write(struct eth_device *dev, u32 addr, u32 data)
{
addr += dev->iobase;
reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F);
ebi_wait();
reg_write(EBI_IO_ACCS_DATA(EBI_BASE), data);
reg_write(EBI_CPU_IO_ACCS(EBI_BASE),
EXT_DEVICE_CHANNEL_1 | EBI_CPU_WRITE | addr);
ebi_wait();
}
void pkt_data_push(struct eth_device *dev, u32 addr, u32 data)
{
addr += dev->iobase;
reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004A);
ebi_wait();
reg_write(EBI_IO_ACCS_DATA(EBI_BASE), data);
reg_write(EBI_CPU_IO_ACCS(EBI_BASE),
EXT_DEVICE_CHANNEL_1 | EBI_CPU_WRITE | addr);
ebi_wait();
return;
}
u32 pkt_data_pull(struct eth_device *dev, u32 addr)
{
volatile u32 data;
addr += dev->iobase;
reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004A);
ebi_wait();
reg_write(EBI_CPU_IO_ACCS(EBI_BASE), (EXT_DEVICE_CHANNEL_1 | addr));
ebi_wait();
data = reg_read(EBI_IO_ACCS_DATA(EBI_BASE));
return data;
}
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CONFIG_DRIVER_SMC911X_BASE);
#endif
return rc;
}
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