x600.c
3.76 KB
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/*
* (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 <micrel.h>
#include <nand.h>
#include <netdev.h>
#include <phy.h>
#include <rtc.h>
#include <asm/io.h>
#include <asm/mach-types.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)
{
unsigned short id1, id2;
/* check whether KSZ9031 or AR8035 has to be configured */
id1 = phy_read(phydev, MDIO_DEVAD_NONE, 2);
id2 = phy_read(phydev, MDIO_DEVAD_NONE, 3);
if ((id1 == 0x22) && ((id2 & 0xFFF0) == 0x1620)) {
/* PHY configuration for Micrel KSZ9031 */
printf("PHY KSZ9031 detected - ");
phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, 0x1c00);
/* control data pad skew - devaddr = 0x02, register = 0x04 */
ksz9031_phy_extended_write(phydev, 0x02,
MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
MII_KSZ9031_MOD_DATA_NO_POST_INC,
0x0000);
/* rx data pad skew - devaddr = 0x02, register = 0x05 */
ksz9031_phy_extended_write(phydev, 0x02,
MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
MII_KSZ9031_MOD_DATA_NO_POST_INC,
0x0000);
/* tx data pad skew - devaddr = 0x02, register = 0x05 */
ksz9031_phy_extended_write(phydev, 0x02,
MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
MII_KSZ9031_MOD_DATA_NO_POST_INC,
0x0000);
/* gtx and rx clock pad skew - devaddr = 0x02, reg = 0x08 */
ksz9031_phy_extended_write(phydev, 0x02,
MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
MII_KSZ9031_MOD_DATA_NO_POST_INC,
0x03FF);
} else {
/* PHY configuration for Vitesse VSC8641 */
printf("PHY VSC8641 detected - ");
/* 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;
}