misc.c
2.98 KB
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/*
* Miscelaneous DaVinci functions.
*
* Copyright (C) 2009 Nick Thompson, GE Fanuc Ltd, <nick.thompson@gefanuc.com>
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
* Copyright (C) 2008 Lyrtech <www.lyrtech.com>
* Copyright (C) 2004 Texas Instruments.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
#include <net.h>
#include <asm/arch/hardware.h>
#include <asm/io.h>
#include <asm/arch/davinci_misc.h>
DECLARE_GLOBAL_DATA_PTR;
#ifndef CONFIG_SPL_BUILD
int dram_init(void)
{
/* dram_init must store complete ramsize in gd->ram_size */
gd->ram_size = get_ram_size(
(void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_MAX_RAM_BANK_SIZE);
return 0;
}
int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[0].size = gd->ram_size;
return 0;
}
#endif
#ifdef CONFIG_DRIVER_TI_EMAC
/*
* Read ethernet MAC address from EEPROM for DVEVM compatible boards.
* Returns 1 if found, 0 otherwise.
*/
int dvevm_read_mac_address(uint8_t *buf)
{
#ifdef CONFIG_SYS_I2C_EEPROM_ADDR
/* Read MAC address. */
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x7F00,
CONFIG_SYS_I2C_EEPROM_ADDR_LEN, (uint8_t *) &buf[0], 6))
goto i2cerr;
/* Check that MAC address is valid. */
if (!is_valid_ethaddr(buf))
goto err;
return 1; /* Found */
i2cerr:
printf("Read from EEPROM @ 0x%02x failed\n",
CONFIG_SYS_I2C_EEPROM_ADDR);
err:
#endif /* CONFIG_SYS_I2C_EEPROM_ADDR */
return 0;
}
/*
* Set the mii mode as MII or RMII
*/
#if defined(CONFIG_SOC_DA8XX)
void davinci_emac_mii_mode_sel(int mode_sel)
{
int val;
val = readl(&davinci_syscfg_regs->cfgchip3);
if (mode_sel == 0)
val &= ~(1 << 8);
else
val |= (1 << 8);
writel(val, &davinci_syscfg_regs->cfgchip3);
}
#endif
/*
* If there is no MAC address in the environment, then it will be initialized
* (silently) from the value in the EEPROM.
*/
void davinci_sync_env_enetaddr(uint8_t *rom_enetaddr)
{
uint8_t env_enetaddr[6];
int ret;
ret = eth_env_get_enetaddr_by_index("eth", 0, env_enetaddr);
if (!ret) {
/*
* There is no MAC address in the environment, so we
* initialize it from the value in the EEPROM.
*/
debug("### Setting environment from EEPROM MAC address = "
"\"%pM\"\n",
env_enetaddr);
ret = !eth_env_set_enetaddr("ethaddr", rom_enetaddr);
}
if (!ret)
printf("Failed to set mac address from EEPROM: %d\n", ret);
}
#endif /* CONFIG_DRIVER_TI_EMAC */
#if defined(CONFIG_SOC_DA8XX)
void irq_init(void)
{
/*
* Mask all IRQs by clearing the global enable and setting
* the enable clear for all the 90 interrupts.
*/
writel(0, &davinci_aintc_regs->ger);
writel(0, &davinci_aintc_regs->hier);
writel(0xffffffff, &davinci_aintc_regs->ecr1);
writel(0xffffffff, &davinci_aintc_regs->ecr2);
writel(0xffffffff, &davinci_aintc_regs->ecr3);
}
/*
* Enable PSC for various peripherals.
*/
int da8xx_configure_lpsc_items(const struct lpsc_resource *item,
const int n_items)
{
int i;
for (i = 0; i < n_items; i++)
lpsc_on(item[i].lpsc_no);
return 0;
}
#endif