xref: /openbmc/u-boot/board/atmel/sama5d3_xplained/sama5d3_xplained.c (revision 7ca6f363)

/*
 * Copyright (C) 2014 Atmel Corporation
 *		      Bo Shen <voice.shen@atmel.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <mmc.h>
#include <asm/io.h>
#include <asm/arch/sama5d3_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/clk.h>
#include <atmel_mci.h>
#include <net.h>
#include <netdev.h>

DECLARE_GLOBAL_DATA_PTR;

#ifdef CONFIG_NAND_ATMEL
void sama5d3_xplained_nand_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;

	at91_periph_clk_enable(ATMEL_ID_SMC);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
	       &smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
	       AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
	       &smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
	       &smc->cs[3].cycle);
	writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
	       AT91_SMC_TIMINGS_TAR(3)  | AT91_SMC_TIMINGS_TRR(4)   |
	       AT91_SMC_TIMINGS_TWB(5)  | AT91_SMC_TIMINGS_RBNSEL(3)|
	       AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
	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(3),
	       &smc->cs[3].mode);
}
#endif

#ifdef CONFIG_CMD_USB
static void sama5d3_xplained_usb_hw_init(void)
{
	at91_set_pio_output(AT91_PIO_PORTE, 3, 0);
	at91_set_pio_output(AT91_PIO_PORTE, 4, 0);
}
#endif

#ifdef CONFIG_GENERIC_ATMEL_MCI
static void sama5d3_xplained_mci0_hw_init(void)
{
	at91_mci_hw_init();

	at91_set_pio_output(AT91_PIO_PORTE, 2, 0);	/* MCI0 Power */
}
#endif

int board_early_init_f(void)
{
	at91_periph_clk_enable(ATMEL_ID_PIOA);
	at91_periph_clk_enable(ATMEL_ID_PIOB);
	at91_periph_clk_enable(ATMEL_ID_PIOC);
	at91_periph_clk_enable(ATMEL_ID_PIOD);
	at91_periph_clk_enable(ATMEL_ID_PIOE);

	at91_seriald_hw_init();

	return 0;
}

int board_init(void)
{
	/* adress of boot parameters */
	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;

#ifdef CONFIG_NAND_ATMEL
	sama5d3_xplained_nand_hw_init();
#endif
#ifdef CONFIG_CMD_USB
	sama5d3_xplained_usb_hw_init();
#endif
#ifdef CONFIG_GENERIC_ATMEL_MCI
	sama5d3_xplained_mci0_hw_init();
#endif
#ifdef CONFIG_MACB
	at91_gmac_hw_init();
	at91_macb_hw_init();
#endif
	return 0;
}

int dram_init(void)
{
	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
				    CONFIG_SYS_SDRAM_SIZE);

	return 0;
}

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

#ifdef CONFIG_GENERIC_ATMEL_MCI
int board_mmc_init(bd_t *bis)
{
	atmel_mci_init((void *)ATMEL_BASE_MCI0);

	return 0;
}
#endif