mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
192bc6948b
With format-security errors turned on, GCC picks up the use of sprintf with a format parameter not being a string literal. Simple uses of sprintf are also converted to use strcpy. Signed-off-by: Ben Whitten <ben.whitten@gmail.com> Acked-by: Wolfgang Denk <wd@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
/*
|
|
* (C) Copyright 2014
|
|
* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
#include <gdsys_fpga.h>
|
|
#include <miiphy.h>
|
|
|
|
#include "ihs_mdio.h"
|
|
|
|
static int ihs_mdio_idle(struct mii_dev *bus)
|
|
{
|
|
struct ihs_mdio_info *info = bus->priv;
|
|
u16 val;
|
|
unsigned int ctr = 0;
|
|
|
|
do {
|
|
FPGA_GET_REG(info->fpga, mdio.control, &val);
|
|
udelay(100);
|
|
if (ctr++ > 10)
|
|
return -1;
|
|
} while (!(val & (1 << 12)));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ihs_mdio_reset(struct mii_dev *bus)
|
|
{
|
|
ihs_mdio_idle(bus);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ihs_mdio_read(struct mii_dev *bus, int addr, int dev_addr,
|
|
int regnum)
|
|
{
|
|
struct ihs_mdio_info *info = bus->priv;
|
|
u16 val;
|
|
|
|
ihs_mdio_idle(bus);
|
|
|
|
FPGA_SET_REG(info->fpga, mdio.control,
|
|
((addr & 0x1f) << 5) | (regnum & 0x1f) | (2 << 10));
|
|
|
|
/* wait for rx data available */
|
|
udelay(100);
|
|
|
|
FPGA_GET_REG(info->fpga, mdio.rx_data, &val);
|
|
|
|
return val;
|
|
}
|
|
|
|
static int ihs_mdio_write(struct mii_dev *bus, int addr, int dev_addr,
|
|
int regnum, u16 value)
|
|
{
|
|
struct ihs_mdio_info *info = bus->priv;
|
|
|
|
ihs_mdio_idle(bus);
|
|
|
|
FPGA_SET_REG(info->fpga, mdio.address_data, value);
|
|
FPGA_SET_REG(info->fpga, mdio.control,
|
|
((addr & 0x1f) << 5) | (regnum & 0x1f) | (1 << 10));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ihs_mdio_init(struct ihs_mdio_info *info)
|
|
{
|
|
struct mii_dev *bus = mdio_alloc();
|
|
|
|
if (!bus) {
|
|
printf("Failed to allocate FSL MDIO bus\n");
|
|
return -1;
|
|
}
|
|
|
|
bus->read = ihs_mdio_read;
|
|
bus->write = ihs_mdio_write;
|
|
bus->reset = ihs_mdio_reset;
|
|
strcpy(bus->name, info->name);
|
|
|
|
bus->priv = info;
|
|
|
|
return mdio_register(bus);
|
|
}
|