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      1 // SPDX-License-Identifier: GPL-2.0+
      2 /*
      3  * Copyright (C) 2012-2015 Panasonic Corporation
      4  * Copyright (C) 2015-2016 Socionext Inc.
      5  *   Author: Masahiro Yamada <yamada.masahiro (at) socionext.com>
      6  */
      7 
      8 #include <linux/errno.h>
      9 #include <linux/io.h>
     10 #include <linux/printk.h>
     11 
     12 #include "init.h"
     13 #include "micro-support-card.h"
     14 #include "soc-info.h"
     15 
     16 #ifdef CONFIG_ARCH_UNIPHIER_LD20
     17 static void uniphier_ld20_misc_init(void)
     18 {
     19 	/* ES1 errata: increase VDD09 supply to suppress VBO noise */
     20 	if (uniphier_get_soc_revision() == 1) {
     21 		writel(0x00000003, 0x6184e004);
     22 		writel(0x00000100, 0x6184e040);
     23 		writel(0x0000b500, 0x6184e024);
     24 		writel(0x00000001, 0x6184e000);
     25 	}
     26 }
     27 #endif
     28 
     29 struct uniphier_initdata {
     30 	unsigned int soc_id;
     31 	void (*sbc_init)(void);
     32 	void (*pll_init)(void);
     33 	void (*clk_init)(void);
     34 	void (*misc_init)(void);
     35 };
     36 
     37 static const struct uniphier_initdata uniphier_initdata[] = {
     38 #if defined(CONFIG_ARCH_UNIPHIER_LD4)
     39 	{
     40 		.soc_id = UNIPHIER_LD4_ID,
     41 		.sbc_init = uniphier_ld4_sbc_init,
     42 		.pll_init = uniphier_ld4_pll_init,
     43 		.clk_init = uniphier_ld4_clk_init,
     44 	},
     45 #endif
     46 #if defined(CONFIG_ARCH_UNIPHIER_PRO4)
     47 	{
     48 		.soc_id = UNIPHIER_PRO4_ID,
     49 		.sbc_init = uniphier_sbc_init_savepin,
     50 		.pll_init = uniphier_pro4_pll_init,
     51 		.clk_init = uniphier_pro4_clk_init,
     52 	},
     53 #endif
     54 #if defined(CONFIG_ARCH_UNIPHIER_SLD8)
     55 	{
     56 		.soc_id = UNIPHIER_SLD8_ID,
     57 		.sbc_init = uniphier_ld4_sbc_init,
     58 		.pll_init = uniphier_ld4_pll_init,
     59 		.clk_init = uniphier_ld4_clk_init,
     60 	},
     61 #endif
     62 #if defined(CONFIG_ARCH_UNIPHIER_PRO5)
     63 	{
     64 		.soc_id = UNIPHIER_PRO5_ID,
     65 		.sbc_init = uniphier_sbc_init_savepin,
     66 		.clk_init = uniphier_pro5_clk_init,
     67 	},
     68 #endif
     69 #if defined(CONFIG_ARCH_UNIPHIER_PXS2)
     70 	{
     71 		.soc_id = UNIPHIER_PXS2_ID,
     72 		.sbc_init = uniphier_pxs2_sbc_init,
     73 		.clk_init = uniphier_pxs2_clk_init,
     74 	},
     75 #endif
     76 #if defined(CONFIG_ARCH_UNIPHIER_LD6B)
     77 	{
     78 		.soc_id = UNIPHIER_LD6B_ID,
     79 		.sbc_init = uniphier_pxs2_sbc_init,
     80 		.clk_init = uniphier_pxs2_clk_init,
     81 	},
     82 #endif
     83 #if defined(CONFIG_ARCH_UNIPHIER_LD11)
     84 	{
     85 		.soc_id = UNIPHIER_LD11_ID,
     86 		.sbc_init = uniphier_ld11_sbc_init,
     87 		.pll_init = uniphier_ld11_pll_init,
     88 		.clk_init = uniphier_ld11_clk_init,
     89 	},
     90 #endif
     91 #if defined(CONFIG_ARCH_UNIPHIER_LD20)
     92 	{
     93 		.soc_id = UNIPHIER_LD20_ID,
     94 		.sbc_init = uniphier_ld11_sbc_init,
     95 		.pll_init = uniphier_ld20_pll_init,
     96 		.clk_init = uniphier_ld20_clk_init,
     97 		.misc_init = uniphier_ld20_misc_init,
     98 	},
     99 #endif
    100 #if defined(CONFIG_ARCH_UNIPHIER_PXS3)
    101 	{
    102 		.soc_id = UNIPHIER_PXS3_ID,
    103 		.sbc_init = uniphier_pxs2_sbc_init,
    104 		.pll_init = uniphier_pxs3_pll_init,
    105 		.clk_init = uniphier_pxs3_clk_init,
    106 	},
    107 #endif
    108 };
    109 UNIPHIER_DEFINE_SOCDATA_FUNC(uniphier_get_initdata, uniphier_initdata)
    110 
    111 int board_init(void)
    112 {
    113 	const struct uniphier_initdata *initdata;
    114 
    115 	led_puts("U0");
    116 
    117 	initdata = uniphier_get_initdata();
    118 	if (!initdata) {
    119 		pr_err("unsupported SoC\n");
    120 		return -EINVAL;
    121 	}
    122 
    123 	initdata->sbc_init();
    124 
    125 	support_card_init();
    126 
    127 	led_puts("U0");
    128 
    129 	if (initdata->pll_init)
    130 		initdata->pll_init();
    131 
    132 	led_puts("U1");
    133 
    134 	if (initdata->clk_init)
    135 		initdata->clk_init();
    136 
    137 	led_puts("U2");
    138 
    139 	if (initdata->misc_init)
    140 		initdata->misc_init();
    141 
    142 	led_puts("U3");
    143 
    144 	support_card_late_init();
    145 
    146 	led_puts("Uboo");
    147 
    148 	return 0;
    149 }
    150