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/*
* Copyright (C) 2006 Atmel Corporation
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <netdev.h>
#include <asm/io.h>
#include <asm/sdram.h>
#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/hmatrix.h>
#include <asm/arch/portmux.h>
#include <lcd.h>
DECLARE_GLOBAL_DATA_PTR;
static const struct sdram_config sdram_config = {
.data_bits = SDRAM_DATA_16BIT,
.row_bits = 13,
.col_bits = 9,
.bank_bits = 2,
.cas = 3,
.twr = 2,
.trc = 6,
.trp = 2,
.trcd = 2,
.tras = 6,
.txsr = 6,
/* 15.6 us */
.refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
};
int board_early_init_f(void)
{
/* Enable SDRAM in the EBI mux */
hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
/* Enable 26 address bits and NCS2 */
portmux_enable_ebi(16, 26, PORTMUX_EBI_CS(2), PORTMUX_DRIVE_HIGH);
portmux_enable_usart1(PORTMUX_DRIVE_MIN);
/* de-assert "force sys reset" pin */
portmux_select_gpio(PORTMUX_PORT_D, 1 << 15,
PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
/* init custom i/o */
/* cpu type inputs */
portmux_select_gpio(PORTMUX_PORT_E, (1 << 19) | (1 << 20) | (1 << 23),
PORTMUX_DIR_INPUT);
/* main board type inputs */
portmux_select_gpio(PORTMUX_PORT_B, (1 << 19) | (1 << 29),
PORTMUX_DIR_INPUT);
/* DEBUG input (use weak pullup) */
portmux_select_gpio(PORTMUX_PORT_E, 1 << 21,
PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
/* are we suppressing the console ? */
if (gpio_get_value(GPIO_PIN_PE(21)) == 1)
gd->flags |= (GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE);
/* reset phys */
portmux_select_gpio(PORTMUX_PORT_E, 1 << 24, PORTMUX_DIR_INPUT);
portmux_select_gpio(PORTMUX_PORT_C, 1 << 18,
PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
udelay(5000);
/* release phys reset */
gpio_set_value(GPIO_PIN_PC(18), 0); /* PHY RESET (Release) */
#if defined(CONFIG_MACB)
/* init macb0 pins */
portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
#endif
#if defined(CONFIG_MMC)
portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
#endif
return 0;
}
phys_size_t initdram(int board_type)
{
unsigned long expected_size;
unsigned long actual_size;
void *sdram_base;
sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
expected_size = sdram_init(sdram_base, &sdram_config);
actual_size = get_ram_size(sdram_base, expected_size);
unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
if (expected_size != actual_size)
printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
actual_size >> 20, expected_size >> 20);
return actual_size;
}
int board_early_init_r(void)
{
gd->bd->bi_phy_id[0] = 0x01;
gd->bd->bi_phy_id[1] = 0x03;
return 0;
}
int board_postclk_init(void)
{
/* Use GCLK0 as 10MHz output */
gclk_enable_output(0, PORTMUX_DRIVE_LOW);
gclk_set_rate(0, GCLK_PARENT_OSC0, 10000000);
return 0;
}
/* SPI chip select control */
#ifdef CONFIG_ATMEL_SPI
#include <spi.h>
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
return (bus == 0) && (cs == 0);
}
void spi_cs_activate(struct spi_slave *slave)
{
}
void spi_cs_deactivate(struct spi_slave *slave)
{
}
#endif /* CONFIG_ATMEL_SPI */
#ifdef CONFIG_CMD_NET
int board_eth_init(bd_t *bi)
{
macb_eth_initialize(0, (void *)MACB0_BASE, bi->bi_phy_id[0]);
macb_eth_initialize(1, (void *)MACB1_BASE, bi->bi_phy_id[1]);
return 0;
}
#endif
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