mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
d7f9b503a8
board/davinci. Move the davinci common headers to the architecture specific include file path. Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
/*
|
|
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
|
|
*
|
|
* Copyright (C) 2008 Lyrtech <www.lyrtech.com>
|
|
* Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com>
|
|
*
|
|
* Parts are shamelessly stolen from various TI sources, original copyright
|
|
* follows:
|
|
*
|
|
* Copyright (C) 2004 Texas Instruments.
|
|
*
|
|
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <i2c.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/davinci_misc.h>
|
|
|
|
#define DAVINCI_A3CR (0x01E00014) /* EMIF-A CS3 config register. */
|
|
#define DAVINCI_A3CR_VAL (0x3FFFFFFD) /* EMIF-A CS3 value for FPGA. */
|
|
|
|
#define INTEGRITY_SYSCFG_OFFSET 0x7E8
|
|
#define INTEGRITY_CHECKWORD_OFFSET 0x7F8
|
|
#define INTEGRITY_CHECKWORD_VALUE 0x10ADBEEF
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int board_init(void)
|
|
{
|
|
/* arch number of the board */
|
|
gd->bd->bi_arch_number = MACH_TYPE_SFFSDR;
|
|
|
|
/* address of boot parameters */
|
|
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
|
|
|
|
davinci_errata_workarounds();
|
|
|
|
/* Power on required peripherals */
|
|
lpsc_on(DAVINCI_LPSC_GPIO);
|
|
|
|
#if !defined(CONFIG_SYS_USE_DSPLINK)
|
|
/* Powerup the DSP */
|
|
dsp_on();
|
|
#endif /* CONFIG_SYS_USE_DSPLINK */
|
|
|
|
davinci_enable_uart0();
|
|
davinci_enable_emac();
|
|
davinci_enable_i2c();
|
|
|
|
lpsc_on(DAVINCI_LPSC_TIMER1);
|
|
timer_init();
|
|
|
|
return(0);
|
|
}
|
|
|
|
/* Read ethernet MAC address from Integrity data structure inside EEPROM.
|
|
* Returns 1 if found, 0 otherwise.
|
|
*/
|
|
static int sffsdr_read_mac_address(uint8_t *buf)
|
|
{
|
|
u_int32_t value, mac[2], address;
|
|
|
|
/* Read Integrity data structure checkword. */
|
|
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, INTEGRITY_CHECKWORD_OFFSET,
|
|
CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4))
|
|
goto err;
|
|
if (value != INTEGRITY_CHECKWORD_VALUE)
|
|
return 0;
|
|
|
|
/* Read SYSCFG structure offset. */
|
|
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, INTEGRITY_SYSCFG_OFFSET,
|
|
CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4))
|
|
goto err;
|
|
address = 0x800 + (int) value; /* Address of SYSCFG structure. */
|
|
|
|
/* Read NET CONFIG structure offset. */
|
|
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, address,
|
|
CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4))
|
|
goto err;
|
|
address = 0x800 + (int) value; /* Address of NET CONFIG structure. */
|
|
address += 12; /* Address of NET INTERFACE CONFIG structure. */
|
|
|
|
/* Read NET INTERFACE CONFIG 2 structure offset. */
|
|
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, address,
|
|
CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4))
|
|
goto err;
|
|
address = 0x800 + 16 + (int) value; /* Address of NET INTERFACE
|
|
* CONFIG 2 structure. */
|
|
|
|
/* Read MAC address. */
|
|
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, address,
|
|
CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (uint8_t *) &mac[0], 8))
|
|
goto err;
|
|
|
|
buf[0] = mac[0] >> 24;
|
|
buf[1] = mac[0] >> 16;
|
|
buf[2] = mac[0] >> 8;
|
|
buf[3] = mac[0];
|
|
buf[4] = mac[1] >> 24;
|
|
buf[5] = mac[1] >> 16;
|
|
|
|
return 1; /* Found */
|
|
|
|
err:
|
|
printf("Read from EEPROM @ 0x%02x failed\n", CONFIG_SYS_I2C_EEPROM_ADDR);
|
|
return 0;
|
|
}
|
|
|
|
/* Platform dependent initialisation. */
|
|
int misc_init_r(void)
|
|
{
|
|
uint8_t i2cbuf;
|
|
uint8_t eeprom_enetaddr[6];
|
|
|
|
/* EMIF-A CS3 configuration for FPGA. */
|
|
REG(DAVINCI_A3CR) = DAVINCI_A3CR_VAL;
|
|
|
|
/* Configure I2C switch (PCA9543) to enable channel 0. */
|
|
i2cbuf = CONFIG_SYS_I2C_PCA9543_ENABLE_CH0;
|
|
if (i2c_write(CONFIG_SYS_I2C_PCA9543_ADDR, 0,
|
|
CONFIG_SYS_I2C_PCA9543_ADDR_LEN, &i2cbuf, 1)) {
|
|
printf("Write to MUX @ 0x%02x failed\n", CONFIG_SYS_I2C_PCA9543_ADDR);
|
|
return 1;
|
|
}
|
|
|
|
/* Read Ethernet MAC address from EEPROM if available. */
|
|
if (sffsdr_read_mac_address(eeprom_enetaddr))
|
|
davinci_sync_env_enetaddr(eeprom_enetaddr);
|
|
|
|
return(0);
|
|
}
|