u-boot-brain/arch/arm/mach-uniphier/spl_board_init.c

/*
 * Copyright (C) 2015-2016 Socionext Inc.
 *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <debug_uart.h>
#include <spl.h>

#include "init.h"
#include "micro-support-card.h"
#include "soc-info.h"

struct uniphier_spl_initdata {
	unsigned int soc_id;
	void (*bcu_init)(const struct uniphier_board_data *bd);
	void (*early_clk_init)(void);
	int (*dpll_init)(const struct uniphier_board_data *bd);
	int (*memconf_init)(const struct uniphier_board_data *bd);
	void (*dram_clk_init)(void);
	int (*umc_init)(const struct uniphier_board_data *bd);
};

static const struct uniphier_spl_initdata uniphier_spl_initdata[] = {
#if defined(CONFIG_ARCH_UNIPHIER_SLD3)
	{
		.soc_id = UNIPHIER_SLD3_ID,
		.bcu_init = uniphier_sld3_bcu_init,
		.early_clk_init = uniphier_sld3_early_clk_init,
		.dpll_init = uniphier_sld3_dpll_init,
		.memconf_init = uniphier_memconf_3ch_no_disbit_init,
		.dram_clk_init = uniphier_sld3_dram_clk_init,
		.umc_init = uniphier_sld3_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD4)
	{
		.soc_id = UNIPHIER_LD4_ID,
		.bcu_init = uniphier_ld4_bcu_init,
		.early_clk_init = uniphier_sld3_early_clk_init,
		.dpll_init = uniphier_ld4_dpll_init,
		.memconf_init = uniphier_memconf_2ch_init,
		.dram_clk_init = uniphier_sld3_dram_clk_init,
		.umc_init = uniphier_ld4_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PRO4)
	{
		.soc_id = UNIPHIER_PRO4_ID,
		.early_clk_init = uniphier_sld3_early_clk_init,
		.dpll_init = uniphier_pro4_dpll_init,
		.memconf_init = uniphier_memconf_2ch_init,
		.dram_clk_init = uniphier_sld3_dram_clk_init,
		.umc_init = uniphier_pro4_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_SLD8)
	{
		.soc_id = UNIPHIER_SLD8_ID,
		.bcu_init = uniphier_ld4_bcu_init,
		.early_clk_init = uniphier_sld3_early_clk_init,
		.dpll_init = uniphier_sld8_dpll_init,
		.memconf_init = uniphier_memconf_2ch_init,
		.dram_clk_init = uniphier_sld3_dram_clk_init,
		.umc_init = uniphier_sld8_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PRO5)
	{
		.soc_id = UNIPHIER_PRO5_ID,
		.early_clk_init = uniphier_sld3_early_clk_init,
		.dpll_init = uniphier_pro5_dpll_init,
		.memconf_init = uniphier_memconf_2ch_init,
		.dram_clk_init = uniphier_pro5_dram_clk_init,
		.umc_init = uniphier_pro5_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PXS2)
	{
		.soc_id = UNIPHIER_PXS2_ID,
		.early_clk_init = uniphier_sld3_early_clk_init,
		.dpll_init = uniphier_pxs2_dpll_init,
		.memconf_init = uniphier_memconf_3ch_init,
		.dram_clk_init = uniphier_pxs2_dram_clk_init,
		.umc_init = uniphier_pxs2_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD6B)
	{
		.soc_id = UNIPHIER_LD6B_ID,
		.early_clk_init = uniphier_sld3_early_clk_init,
		.dpll_init = uniphier_pxs2_dpll_init,
		.memconf_init = uniphier_memconf_3ch_init,
		.dram_clk_init = uniphier_pxs2_dram_clk_init,
		.umc_init = uniphier_pxs2_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD11)
	{
		.soc_id = UNIPHIER_LD11_ID,
		.early_clk_init = uniphier_ld11_early_clk_init,
		.dpll_init = uniphier_ld11_dpll_init,
		.memconf_init = uniphier_memconf_2ch_init,
		.dram_clk_init = uniphier_ld11_dram_clk_init,
		.umc_init = uniphier_ld11_umc_init,
	},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD20)
	{
		.soc_id = UNIPHIER_LD20_ID,
		.early_clk_init = uniphier_ld11_early_clk_init,
		.dpll_init = uniphier_ld20_dpll_init,
		.memconf_init = uniphier_memconf_3ch_init,
		.dram_clk_init = uniphier_ld20_dram_clk_init,
		.umc_init = uniphier_ld20_umc_init,
	},
#endif
};

static const struct uniphier_spl_initdata *uniphier_get_spl_initdata(
							unsigned int soc_id)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(uniphier_spl_initdata); i++) {
		if (uniphier_spl_initdata[i].soc_id == soc_id)
			return &uniphier_spl_initdata[i];
	}

	return NULL;
}

void spl_board_init(void)
{
	const struct uniphier_board_data *bd;
	const struct uniphier_spl_initdata *initdata;
	unsigned int soc_id;
	int ret;

#ifdef CONFIG_DEBUG_UART
	debug_uart_init();
#endif

	bd = uniphier_get_board_param();
	if (!bd)
		hang();

	soc_id = uniphier_get_soc_id();
	initdata = uniphier_get_spl_initdata(soc_id);
	if (!initdata)
		hang();

	if (initdata->bcu_init)
		initdata->bcu_init(bd);


	initdata->early_clk_init();


#ifdef CONFIG_SPL_SERIAL_SUPPORT
	preloader_console_init();
#endif

	ret = initdata->dpll_init(bd);
	if (ret) {
		pr_err("failed to init DPLL\n");
		hang();
	}

	ret = initdata->memconf_init(bd);
	if (ret) {
		pr_err("failed to init MEMCONF\n");
		hang();
	}

	initdata->dram_clk_init();

	ret = initdata->umc_init(bd);
	if (ret) {
		pr_err("failed to init DRAM\n");
		hang();
	}
}