u-boot/board/freescale/p1_p2_rdb_pc/spl.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2013 Freescale Semiconductor, Inc.
 */

#include <common.h>
#include <clock_legacy.h>
#include <console.h>
#include <env.h>
#include <env_internal.h>
#include <init.h>
#include <ns16550.h>
#include <malloc.h>
#include <mmc.h>
#include <nand.h>
#include <i2c.h>
#include <fsl_esdhc.h>
#include <spi_flash.h>
#include <asm/global_data.h>
#include "../common/spl.h"

DECLARE_GLOBAL_DATA_PTR;

phys_size_t get_effective_memsize(void)
{
	return CONFIG_SYS_L2_SIZE;
}

void board_init_f(ulong bootflag)
{
	u32 plat_ratio, bus_clk;
	ccsr_gur_t *gur = (void *)CFG_SYS_MPC85xx_GUTS_ADDR;

	/*
	 * Call board_early_init_f() as early as possible as it workarounds
	 * reboot loop due to broken CPLD state machine for reset line.
	 */
	board_early_init_f();

	console_init_f();

	/* Set pmuxcr to allow both i2c1 and i2c2 */
	setbits_be32(&gur->pmuxcr, in_be32(&gur->pmuxcr) | 0x1000);
	setbits_be32(&gur->pmuxcr,
		     in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA);

	/* Read back the register to synchronize the write. */
	in_be32(&gur->pmuxcr);

#ifdef CONFIG_SPL_SPI_BOOT
	clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SD_DATA);
#endif

	/* initialize selected port with appropriate baud rate */
	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
	plat_ratio >>= 1;
	bus_clk = get_board_sys_clk() * plat_ratio;
	gd->bus_clk = bus_clk;

	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
		     bus_clk / 16 / CONFIG_BAUDRATE);
#ifdef CONFIG_SPL_MMC_BOOT
	puts("\nSD boot...\n");
#elif defined(CONFIG_SPL_SPI_BOOT)
	puts("\nSPI Flash boot...\n");
#endif

	/* copy code to RAM and jump to it - this should not return */
	/* NOTE - code has to be copied out of NAND buffer before
	 * other blocks can be read.
	 */
	relocate_code(CONFIG_VAL(RELOC_STACK), 0, CONFIG_SPL_RELOC_TEXT_BASE);
}

void board_init_r(gd_t *gd, ulong dest_addr)
{
	/* Pointer is writable since we allocated a register for it */
	gd = (gd_t *)CONFIG_VAL(GD_ADDR);
	struct bd_info *bd;

	memset(gd, 0, sizeof(gd_t));
	bd = (struct bd_info *)(CONFIG_VAL(GD_ADDR) + sizeof(gd_t));
	memset(bd, 0, sizeof(struct bd_info));
	gd->bd = bd;

	arch_cpu_init();
	get_clocks();
	mem_malloc_init(CONFIG_VAL(RELOC_MALLOC_ADDR),
			CONFIG_VAL(RELOC_MALLOC_SIZE));
	gd->flags |= GD_FLG_FULL_MALLOC_INIT;

#ifdef CONFIG_SPL_ENV_SUPPORT
#ifndef CONFIG_SPL_NAND_BOOT
	env_init();
#endif
#endif
#ifdef CONFIG_SPL_MMC_BOOT
	mmc_initialize(bd);
#endif
#ifdef CONFIG_SPL_ENV_SUPPORT
	/* relocate environment function pointers etc. */
#ifdef CONFIG_SPL_NAND_BOOT
	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
			    (uchar *)SPL_ENV_ADDR);
	gd->env_addr  = (ulong)(SPL_ENV_ADDR);
	gd->env_valid = ENV_VALID;
#else
	env_relocate();
#endif
#endif

#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
	i2c_init_all();
#else
	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
#endif

	dram_init();
#ifdef CONFIG_SPL_NAND_BOOT
	puts("Tertiary program loader running in sram...");
#else
	puts("Second program loader running in sram...\n");
#endif

#ifdef CONFIG_SPL_MMC_BOOT
	mmc_boot();
#elif defined(CONFIG_SPL_SPI_BOOT)
	fsl_spi_boot();
#elif defined(CONFIG_SPL_NAND_BOOT)
	nand_boot();
#endif
}