arch/arm/mach-uniphier/boot-mode/boot-mode-ld20.c

   1 /*
   2  * Copyright (C) 2016-2017 Socionext Inc.
   3  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <spl.h>
  10 #include <linux/io.h>
  11
  12 #include "../sg-regs.h"
  13 #include "../soc-info.h"
  14 #include "boot-device.h"
  15
  16 static struct boot_device_info boot_device_table[] = {
  17         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC  8, EraseSize 128KB, Addr 4)"},
  18         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC 16, EraseSize 128KB, Addr 4)"},
  19         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC  8, EraseSize 128KB, Addr 5)"},
  20         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC 16, EraseSize 128KB, Addr 5)"},
  21         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC  8, EraseSize 256KB, Addr 5)"},
  22         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC 16, EraseSize 256KB, Addr 5)"},
  23         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC  8, EraseSize 512KB, Addr 5)"},
  24         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC 16, EraseSize 512KB, Addr 5)"},
  25         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC  8, EraseSize 128KB, Addr 4)"},
  26         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC 16, EraseSize 128KB, Addr 4)"},
  27         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC  8, EraseSize 128KB, Addr 5)"},
  28         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC 16, EraseSize 128KB, Addr 5)"},
  29         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC  8, EraseSize 256KB, Addr 5)"},
  30         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC 16, EraseSize 256KB, Addr 5)"},
  31         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC  8, EraseSize 512KB, Addr 5)"},
  32         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC 16, EraseSize 512KB, Addr 5)"},
  33         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC  8, ONFI,            Addr 4)"},
  34         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC 16, ONFI,            Addr 4)"},
  35         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC  8, ONFI,            Addr 5)"},
  36         {BOOT_DEVICE_NAND, "NAND (Mirror 8, ECC 16, ONFI,            Addr 5)"},
  37         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC  8, ONFI             Addr 4)"},
  38         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC 16, ONFI             Addr 4)"},
  39         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC  8, ONFI             Addr 5)"},
  40         {BOOT_DEVICE_NAND, "NAND (Mirror 1, ECC 16, ONFI             Addr 5)"},
  41         {BOOT_DEVICE_MMC1, "eMMC (Legacy,         4bit, 1.8V, Training Off)"},
  42         {BOOT_DEVICE_MMC1, "eMMC (Legacy,         4bit, 1.8V, Training On)"},
  43         {BOOT_DEVICE_MMC1, "eMMC (Legacy,         8bit, 1.8V, Training Off)"},
  44         {BOOT_DEVICE_MMC1, "eMMC (Legacy,         8bit, 1.8V, Training On)"},
  45         {BOOT_DEVICE_MMC1, "eMMC (High Speed SDR, 8bit, 1.8V, Training Off)"},
  46         {BOOT_DEVICE_MMC1, "eMMC (High Speed SDR, 8bit, 1.8V, Training On)"},
  47         {BOOT_DEVICE_MMC1, "eMMC (Legacy,         4bit, 1.8V, Training Off)"},
  48         {BOOT_DEVICE_NOR,  "NOR  (XECS1)"},
  49 };
  50
  51 static int get_boot_mode_sel(void)
  52 {
  53         return (readl(SG_PINMON0) >> 1) & 0x1f;
  54 }
  55
  56 u32 uniphier_ld20_boot_device(void)
  57 {
  58         int boot_mode;
  59         u32 usb_boot_mask;
  60
  61         switch (uniphier_get_soc_id()) {
  62 #if defined(CONFIG_ARCH_UNIPHIER_LD11)
  63         case UNIPHIER_LD11_ID:
  64                 usb_boot_mask = 0x00000080;
  65                 break;
  66 #endif
  67 #if defined(CONFIG_ARCH_UNIPHIER_LD20)
  68         case UNIPHIER_LD20_ID:
  69                 usb_boot_mask = 0x00000780;
  70                 break;
  71 #endif
  72         default:
  73                 BUG();
  74         }
  75
  76         if (~readl(SG_PINMON0) & usb_boot_mask)
  77                 return BOOT_DEVICE_USB;
  78
  79         boot_mode = get_boot_mode_sel();
  80
  81         return boot_device_table[boot_mode].type;
  82 }
  83
  84 void uniphier_ld20_boot_mode_show(void)
  85 {
  86         int mode_sel, i;
  87
  88         mode_sel = get_boot_mode_sel();
  89
  90         puts("Boot Mode Pin:\n");
  91
  92         for (i = 0; i < ARRAY_SIZE(boot_device_table); i++)
  93                 printf(" %c %02x %s\n", i == mode_sel ? '*' : ' ', i,
  94                        boot_device_table[i].info);
  95 }