u-boot/board/atmel/at91sam9263ek/at91sam9263ek.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2007-2008
 * Stelian Pop <stelian@popies.net>
 * Lead Tech Design <www.leadtechdesign.com>
 */

#include <common.h>
#include <debug_uart.h>
#include <init.h>
#include <net.h>
#include <vsprintf.h>
#include <asm/global_data.h>
#include <linux/sizes.h>
#include <asm/arch/at91sam9263.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_matrix.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/clk.h>
#include <asm/io.h>
#include <asm/arch/gpio.h>
#include <asm/arch/hardware.h>
#include <atmel_lcdc.h>
#include <asm/mach-types.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 *) ATMEL_BASE_SMC0;
	at91_matrix_t *matrix = (at91_matrix_t *) ATMEL_BASE_MATRIX;

	/* 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);

	at91_periph_clk_enable(ATMEL_ID_PIOA);
	at91_periph_clk_enable(ATMEL_ID_PIOCDE);

	/* Configure RDY/BSY */
	at91_set_gpio_input(CFG_SYS_NAND_READY_PIN, 1);

	/* Enable NandFlash */
	at91_set_gpio_output(CFG_SYS_NAND_ENABLE_PIN, 1);
}
#endif

#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
	at91_seriald_hw_init();
}
#endif

#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
	return 0;
}
#endif

int board_init(void)
{
	/* arch number of AT91SAM9263EK-Board */
	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9263EK;
	/* adress of boot parameters */
	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;

#ifdef CONFIG_CMD_NAND
	at91sam9263ek_nand_hw_init();
#endif
#ifdef CONFIG_USB_OHCI_NEW
	at91_uhp_hw_init();
#endif
	return 0;
}

int dram_init(void)
{
	gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE,
		CFG_SYS_SDRAM_SIZE);

	return 0;
}

#ifdef CONFIG_RESET_PHY_R
void reset_phy(void)
{
}
#endif