csu3_am335x/board-support/u-boot-2017.01+gitAUTOINC+340fb36f04-g340fb36f04/board/xes/xpedite517x/xpedite517x.c

/*
 * Copyright 2009 Extreme Engineering Solutions, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <asm/processor.h>
#include <fsl_ddr_sdram.h>
#include <asm/mmu.h>
#include <asm/io.h>
#include <fdt_support.h>
#include <pca953x.h>
#include "../common/fsl_8xxx_misc.h"

#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_PCI)
extern void ft_board_pci_setup(void *blob, bd_t *bd);
#endif

/*
 * Print out which flash was booted from and if booting from the 2nd flash,
 * swap flash chip selects to maintain consistent flash numbering/addresses.
 */
static void flash_cs_fixup(void)
{
	int flash_sel;

	/*
	 * Print boot dev and swap flash flash chip selects if booted from 2nd
	 * flash.  Swapping chip selects presents user with a common memory
	 * map regardless of which flash was booted from.
	 */
	flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) &
			CONFIG_SYS_PCA953X_C0_FLASH_PASS_CS));
	printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1);

	if (flash_sel) {
		set_lbc_br(0, CONFIG_SYS_BR1_PRELIM);
		set_lbc_or(0, CONFIG_SYS_OR1_PRELIM);

		set_lbc_br(1, CONFIG_SYS_BR0_PRELIM);
		set_lbc_or(1, CONFIG_SYS_OR0_PRELIM);
	}
}

int board_early_init_r(void)
{
	/* Initialize PCA9557 devices */
	pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0);
	pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0);
	pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0);
	pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0);

	flash_cs_fixup();

	return 0;
}

phys_size_t initdram(int board_type)
{
	phys_size_t dram_size = fsl_ddr_sdram();

#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	/* Initialize and enable DDR ECC */
	ddr_enable_ecc(dram_size);
#endif

	return dram_size;
}

#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
#ifdef CONFIG_PCI
	ft_board_pci_setup(blob, bd);
#endif
	ft_cpu_setup(blob, bd);

	return 0;
}
#endif