board_f.c

/*
 * Copyright (c) 2011 The Chromium OS Authors.
 * (C) Copyright 2002-2006
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * (C) Copyright 2002
 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Marius Groeger <mgroeger@sysgo.de>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <linux/compiler.h>
#include <version.h>
#include <environment.h>
#include <dm.h>
#include <fdtdec.h>
#include <fs.h>
#if defined(CONFIG_CMD_IDE)
#include <ide.h>
#endif
#include <i2c.h>
#include <initcall.h>
#include <logbuff.h>
#include <malloc.h>
#include <mapmem.h>

/* TODO: Can we move these into arch/ headers? */
#ifdef CONFIG_8xx
#include <mpc8xx.h>
#endif
#ifdef CONFIG_5xx
#include <mpc5xx.h>
#endif
#ifdef CONFIG_MPC5xxx
#include <mpc5xxx.h>
#endif
#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
#include <asm/mp.h>
#endif

#include <os.h>
#include <post.h>
#include <spi.h>
#include <status_led.h>
#include <trace.h>
#include <watchdog.h>
#include <asm/errno.h>
#include <asm/io.h>
#include <asm/sections.h>
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
#include <asm/init_helpers.h>
#include <asm/relocate.h>
#endif
#ifdef CONFIG_SANDBOX
#include <asm/state.h>
#endif
#include <dm/root.h>
#include <linux/compiler.h>

/*
 * Pointer to initial global data area
 *
 * Here we initialize it if needed.
 */
#ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
#undef	XTRN_DECLARE_GLOBAL_DATA_PTR
#define XTRN_DECLARE_GLOBAL_DATA_PTR	/* empty = allocate here */
DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
#else
DECLARE_GLOBAL_DATA_PTR;
#endif

/*
 * TODO(sjg@chromium.org): IMO this code should be
 * refactored to a single function, something like:
 *
 * void led_set_state(enum led_colour_t colour, int on);
 */
/************************************************************************
 * Coloured LED functionality
 ************************************************************************
 * May be supplied by boards if desired
 */
__weak void coloured_LED_init(void) {}
__weak void red_led_on(void) {}
__weak void red_led_off(void) {}
__weak void green_led_on(void) {}
__weak void green_led_off(void) {}
__weak void yellow_led_on(void) {}
__weak void yellow_led_off(void) {}
__weak void blue_led_on(void) {}
__weak void blue_led_off(void) {}

/*
 * Why is gd allocated a register? Prior to reloc it might be better to
 * just pass it around to each function in this file?
 *
 * After reloc one could argue that it is hardly used and doesn't need
 * to be in a register. Or if it is it should perhaps hold pointers to all
 * global data for all modules, so that post-reloc we can avoid the massive
 * literal pool we get on ARM. Or perhaps just encourage each module to use
 * a structure...
 */

/*
 * Could the CONFIG_SPL_BUILD infection become a flag in gd?
 */

#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
static int init_func_watchdog_init(void)
{
# if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
	defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
	defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
	defined(CONFIG_IMX_WATCHDOG))
	hw_watchdog_init();
# endif
	puts("       Watchdog enabled\n");
	WATCHDOG_RESET();

	return 0;
}

int init_func_watchdog_reset(void)
{
	WATCHDOG_RESET();

	return 0;
}
#endif /* CONFIG_WATCHDOG */

__weak void board_add_ram_info(int use_default)
{
	/* please define platform specific board_add_ram_info() */
}

static int init_baud_rate(void)
{
	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
	return 0;
}

static int display_text_info(void)
{
#ifndef CONFIG_SANDBOX
	ulong bss_start, bss_end, text_base;

	bss_start = (ulong)&__bss_start;
	bss_end = (ulong)&__bss_end;

#ifdef CONFIG_SYS_TEXT_BASE
	text_base = CONFIG_SYS_TEXT_BASE;
#else
	text_base = CONFIG_SYS_MONITOR_BASE;
#endif

	debug("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
		text_base, bss_start, bss_end);
#endif

#ifdef CONFIG_MODEM_SUPPORT
	debug("Modem Support enabled\n");
#endif
#ifdef CONFIG_USE_IRQ
	debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
	debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
#endif

	return 0;
}

static int announce_dram_init(void)
{
	puts("DRAM:  ");
	return 0;
}

#if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
static int init_func_ram(void)
{
#ifdef	CONFIG_BOARD_TYPES
	int board_type = gd->board_type;
#else
	int board_type = 0;	/* use dummy arg */
#endif

	gd->ram_size = initdram(board_type);

	if (gd->ram_size > 0)
		return 0;

	puts("*** failed ***\n");
	return 1;
}
#endif

static int show_dram_config(void)
{