u-boot/board/spear/x600/x600.c
Alexey Brodkin 92a190aaab net/designware - switch driver to phylib usage
With this change driver will benefit from existing phylib and thus
custom phy functionality implemented in the driver will go away:
 * Instantiation of the driver is now much shorter - 2 parameters
instead of 4.
 * Simplified phy management/functoinality in driver is replaced with
rich functionality of phylib.
 * Support of custom phy initialization is now done with existing
"board_phy_config".

Note that after this change some previously used config options
(driver-specific PHY configuration) will be obsolete and they are simply
substituted with similar options of phylib.

For example:
 * CONFIG_DW_AUTONEG - no need in this one. Autonegotiation is enabled
by default.
 * CONFIG_DW_SEARCH_PHY - if one wants to specify attached phy
explicitly CONFIG_PHY_ADDR board config option has to be used, otherwise
automatically the first discovered on MDIO bus phy will be used

I believe there's no need now in "doc/README.designware_eth" because
user only needs to instantiate the driver with "designware_initialize"
whose prototype exists in "include/netdev.h".

Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Vipin Kumar <vipin.kumar@st.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Mischa Jonker <mjonker@synopsys.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Amit Virdi <amit.virdi@st.com>
Cc: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2014-02-07 09:16:46 -05:00

109 lines
2.4 KiB
C

/*
* (C) Copyright 2009
* Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
*
* Copyright (C) 2012 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <nand.h>
#include <netdev.h>
#include <phy.h>
#include <rtc.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/spr_defs.h>
#include <asm/arch/spr_misc.h>
#include <linux/mtd/fsmc_nand.h>
#include "fpga.h"
static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
int board_init(void)
{
/*
* X600 is equipped with an M41T82 RTC. This RTC has the
* HT bit (Halt Update), which needs to be cleared upon
* power-up. Otherwise the RTC is halted.
*/
rtc_reset();
return spear_board_init(MACH_TYPE_SPEAR600);
}
int board_late_init(void)
{
/*
* Monitor and env protection on by default
*/
flash_protect(FLAG_PROTECT_SET,
CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE +
CONFIG_SYS_SPL_LEN + CONFIG_SYS_MONITOR_LEN +
2 * CONFIG_ENV_SECT_SIZE - 1,
&flash_info[0]);
/* Init FPGA subsystem */
x600_init_fpga();
return 0;
}
/*
* board_nand_init - Board specific NAND initialization
* @nand: mtd private chip structure
*
* Called by nand_init_chip to initialize the board specific functions
*/
void board_nand_init(void)
{
struct misc_regs *const misc_regs_p =
(struct misc_regs *)CONFIG_SPEAR_MISCBASE;
struct nand_chip *nand = &nand_chip[0];
if (!(readl(&misc_regs_p->auto_cfg_reg) & MISC_NANDDIS))
fsmc_nand_init(nand);
}
int board_phy_config(struct phy_device *phydev)
{
/* Extended PHY control 1, select GMII */
phy_write(phydev, MDIO_DEVAD_NONE, 23, 0x0020);
/* Software reset necessary after GMII mode selction */
phy_reset(phydev);
/* Enable extended page register access */
phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0001);
/* 17e: Enhanced LED behavior, needs to be written twice */
phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x09ff);
phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x09ff);
/* 16e: Enhanced LED method select */
phy_write(phydev, MDIO_DEVAD_NONE, 16, 0xe0ea);
/* Disable extended page register access */
phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0000);
/* Enable clock output pin */
phy_write(phydev, MDIO_DEVAD_NONE, 18, 0x0049);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
int board_eth_init(bd_t *bis)
{
int ret = 0;
if (designware_initialize(CONFIG_SPEAR_ETHBASE,
PHY_INTERFACE_MODE_GMII) >= 0)
ret++;
return ret;
}