uboot-vybrid_public/board/atmel/at91sam9263ek/at91sam9263ek.c

/*
 * (C) Copyright 2007-2008
 * Stelian Pop <stelian.pop@leadtechdesign.com>
 * Lead Tech Design <www.leadtechdesign.com>
 *
 * 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 <asm/sizes.h>
#include <asm/arch/at91sam9263.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_matrix.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/clk.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
#include <lcd.h>
#include <atmel_lcdc.h>
#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
#include <net.h>
#endif
#include <netdev.h>

DECLARE_GLOBAL_DATA_PTR;

/* ------------------------------------------------------------------------- */
/*
 * Miscelaneous platform dependent initialisations
 */

#ifdef CONFIG_CMD_NAND
static void at91sam9263ek_nand_hw_init(void)
{
	unsigned long csa;
	at91_smc_t 	*smc 	= (at91_smc_t *) AT91_SMC0_BASE;
	at91_matrix_t 	*matrix = (at91_matrix_t *) AT91_MATRIX_BASE;
	at91_pmc_t	*pmc	= (at91_pmc_t *) AT91_PMC_BASE;

	/* Enable CS3 */
	csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
	writel(csa, &matrix->csa[0]);

	/* Enable CS3 */

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
		AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
		&smc->cs[3].setup);

	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
		AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
		&smc->cs[3].pulse);

	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
		&smc->cs[3].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
		AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
		       AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
		       AT91_SMC_MODE_DBW_8 |
#endif
		       AT91_SMC_MODE_TDF_CYCLE(2),
		&smc->cs[3].mode);

	writel(1 << AT91SAM9263_ID_PIOA | 1 << AT91SAM9263_ID_PIOCDE,
		&pmc->pcer);

	/* Configure RDY/BSY */
	at91_set_pio_input(CONFIG_SYS_NAND_READY_PIN, 1);

	/* Enable NandFlash */
	at91_set_pio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
#endif

#ifdef CONFIG_MACB
static void at91sam9263ek_macb_hw_init(void)
{
	unsigned long 	erstl;
	at91_pmc_t	*pmc	= (at91_pmc_t *) AT91_PMC_BASE;
	at91_pio_t	*pio	= (at91_pio_t *) AT91_PIO_BASE;
	at91_rstc_t	*rstc	= (at91_rstc_t *) AT91_RSTC_BASE;
	/* Enable clock */
	writel(1 << AT91SAM9263_ID_EMAC, &pmc->pcer);

	/*
	 * Disable pull-up on:
	 *	RXDV (PC25) => PHY normal mode (not Test mode)
	 * 	ERX0 (PE25) => PHY ADDR0
	 *	ERX1 (PE26) => PHY ADDR1 => PHYADDR = 0x0
	 *
	 * PHY has internal pull-down
	 */

	writel(1 << 25, &pio->pioc.pudr);
	writel((1 << 25) | (1 <<26), &pio->pioe.pudr);

	erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;

	/* Need to reset PHY -> 500ms reset */
	writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(0x0D) |
		AT91_RSTC_MR_URSTEN, &rstc->mr);

	writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
	/* Wait for end hardware reset */
	while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL))
		;

	/* Restore NRST value */
	writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN, &rstc->mr);

	/* Re-enable pull-up */
	writel(1 << 25, &pio->pioc.puer);
	writel((1 << 25) | (1 <<26), &pio->pioe.puer);

	at91_macb_hw_init();
}
#endif

#ifdef CONFIG_LCD
vidinfo_t panel_info = {
	vl_col:		240,
	vl_row:		320,
	vl_clk:		4965000,
	vl_sync:	ATMEL_LCDC_INVLINE_INVERTED |
			ATMEL_LCDC_INVFRAME_INVERTED,
	vl_bpix:	3,
	vl_tft:		1,
	vl_hsync_len:	5,
	vl_left_margin:	1,
	vl_right_margin:33,
	vl_vsync_len:	1,
	vl_upper_margin:1,
	vl_lower_margin:0,
	mmio:		AT91SAM9263_LCDC_BASE,
};

void lcd_enable(void)
{
	at91_set_pio_value(AT91_PIO_PORTA, 30, 1);  /* power up */
}

void lcd_disable(void)
{
	at91_set_pio_value(AT91_PIO_PORTA, 30, 0);  /* power down */
}

static void at91sam9263ek_lcd_hw_init(void)
{
	at91_pmc_t	*pmc	= (at91_pmc_t *) AT91_PMC_BASE;

	at91_set_a_periph(AT91_PIO_PORTC, 1, 0);	/* LCDHSYNC */
	at91_set_a_periph(AT91_PIO_PORTC, 2, 0);	/* LCDDOTCK */
	at91_set_a_periph(AT91_PIO_PORTC, 3, 0);	/* LCDDEN */
	at91_set_b_periph(AT91_PIO_PORTB, 9, 0);	/* LCDCC */
	at91_set_a_periph(AT91_PIO_PORTC, 6, 0);	/* LCDD2 */
	at91_set_a_periph(AT91_PIO_PORTC, 7, 0);	/* LCDD3 */
	at91_set_a_periph(AT91_PIO_PORTC, 8, 0);	/* LCDD4 */
	at91_set_a_periph(AT91_PIO_PORTC, 9, 0);	/* LCDD5 */
	at91_set_a_periph(AT91_PIO_PORTC, 10, 0);	/* LCDD6 */
	at91_set_a_periph(AT91_PIO_PORTC, 11, 0);	/* LCDD7 */
	at91_set_a_periph(AT91_PIO_PORTC, 14, 0);	/* LCDD10 */
	at91_set_a_periph(AT91_PIO_PORTC, 15, 0);	/* LCDD11 */
	at91_set_a_periph(AT91_PIO_PORTC, 16, 0);	/* LCDD12 */
	at91_set_b_periph(AT91_PIO_PORTC, 12, 0);	/* LCDD13 */
	at91_set_a_periph(AT91_PIO_PORTC, 18, 0);	/* LCDD14 */
	at91_set_a_periph(AT91_PIO_PORTC, 19, 0);	/* LCDD15 */
	at91_set_a_periph(AT91_PIO_PORTC, 22, 0);	/* LCDD18 */
	at91_set_a_periph(AT91_PIO_PORTC, 23, 0);	/* LCDD19 */
	at91_set_a_periph(AT91_PIO_PORTC, 24, 0);	/* LCDD20 */
	at91_set_b_periph(AT91_PIO_PORTC, 17, 0);	/* LCDD21 */
	at91_set_a_periph(AT91_PIO_PORTC, 26, 0);	/* LCDD22 */
	at91_set_a_periph(AT91_PIO_PORTC, 27, 0);	/* LCDD23 */

	writel(1 << AT91SAM9263_ID_LCDC, &pmc->pcer);
	gd->fb_base = AT91SAM9263_SRAM0_BASE;
}

#ifdef CONFIG_LCD_INFO
#include <nand.h>
#include <version.h>

#ifndef CONFIG_SYS_NO_FLASH
extern flash_info_t flash_info[];
#endif

void lcd_show_board_info(void)
{
	ulong dram_size, nand_size;
#ifndef CONFIG_SYS_NO_FLASH
	ulong flash_size;
#endif
	int i;
	char temp[32];

	lcd_printf ("%s\n", U_BOOT_VERSION);
	lcd_printf ("(C) 2008 ATMEL Corp\n");
	lcd_printf ("at91support@atmel.com\n");
	lcd_printf ("%s CPU at %s MHz\n",
		AT91_CPU_NAME,
		strmhz(temp, get_cpu_clk_rate()));

	dram_size = 0;
	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
		dram_size += gd->bd->bi_dram[i].size;
	nand_size = 0;
	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
		nand_size += nand_info[i].size;
#ifndef CONFIG_SYS_NO_FLASH
	flash_size = 0;
	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++)
		flash_size += flash_info[i].size;
#endif
	lcd_printf ("  %ld MB SDRAM, %ld MB NAND",
		dram_size >> 20,
		nand_size >> 20 );
#ifndef CONFIG_SYS_NO_FLASH
	lcd_printf (",\n  %ld MB NOR",
		flash_size >> 20);
#endif
	lcd_puts ("\n");
}
#endif /* CONFIG_LCD_INFO */
#endif

int board_init(void)
{
	/* Enable Ctrlc */
	console_init_f();

	/* arch number of AT91SAM9263EK-Board */
	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9263EK;
	/* adress of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

	at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
	at91sam9263ek_nand_hw_init();
#endif
#ifdef CONFIG_HAS_DATAFLASH
	at91_set_pio_output(AT91_PIO_PORTE, 20, 1);	/* select spi0 clock */
	at91_spi0_hw_init(1 << 0);
#endif
#ifdef CONFIG_MACB
	at91sam9263ek_macb_hw_init();
#endif
#ifdef CONFIG_USB_OHCI_NEW
	at91_uhp_hw_init();
#endif
#ifdef CONFIG_LCD
	at91sam9263ek_lcd_hw_init();
#endif
	return 0;
}

int dram_init(void)
{
	gd->bd->bi_dram[0].start = PHYS_SDRAM;
	gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
	return 0;
}

#ifdef CONFIG_RESET_PHY_R
void reset_phy(void)
{
#ifdef CONFIG_MACB
	/*
	 * Initialize ethernet HW addr prior to starting Linux,
	 * needed for nfsroot
	 */
	eth_init(gd->bd);
#endif
}
#endif

int board_eth_init(bd_t *bis)
{
	int rc = 0;
#ifdef CONFIG_MACB
	rc = macb_eth_initialize(0, (void *) AT91_EMAC_BASE, 0x00);
#endif
	return rc;
}