| Masahiro Yamada | 574388c | 2016-09-03 11:37:40 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <assert.h> |
| 8 | #include <mmio.h> |
| 9 | #include <stdbool.h> |
| 10 | #include <stddef.h> |
| 11 | #include <utils_def.h> |
| 12 | |
| 13 | #include "uniphier.h" |
| 14 | |
| 15 | #define UNIPHIER_PINMON0 0x5f900100 |
| 16 | #define UNIPHIER_PINMON2 0x5f900108 |
| 17 | |
| 18 | static int uniphier_ld11_is_usb_boot(uint32_t pinmon) |
| 19 | { |
| 20 | return !!(~pinmon & 0x00000080); |
| 21 | } |
| 22 | |
| 23 | static int uniphier_ld20_is_usb_boot(uint32_t pinmon) |
| 24 | { |
| 25 | return !!(~pinmon & 0x00000780); |
| 26 | } |
| 27 | |
| 28 | static int uniphier_pxs3_is_usb_boot(uint32_t pinmon) |
| 29 | { |
| 30 | uint32_t pinmon2 = mmio_read_32(UNIPHIER_PINMON2); |
| 31 | |
| 32 | return !!(pinmon2 & BIT(31)); |
| 33 | } |
| 34 | |
| 35 | static const unsigned int uniphier_ld11_boot_device_table[] = { |
| 36 | UNIPHIER_BOOT_DEVICE_NAND, |
| 37 | UNIPHIER_BOOT_DEVICE_NAND, |
| 38 | UNIPHIER_BOOT_DEVICE_NAND, |
| 39 | UNIPHIER_BOOT_DEVICE_NAND, |
| 40 | UNIPHIER_BOOT_DEVICE_NAND, |
| 41 | UNIPHIER_BOOT_DEVICE_NAND, |
| 42 | UNIPHIER_BOOT_DEVICE_NAND, |
| 43 | UNIPHIER_BOOT_DEVICE_NAND, |
| 44 | UNIPHIER_BOOT_DEVICE_NAND, |
| 45 | UNIPHIER_BOOT_DEVICE_NAND, |
| 46 | UNIPHIER_BOOT_DEVICE_NAND, |
| 47 | UNIPHIER_BOOT_DEVICE_NAND, |
| 48 | UNIPHIER_BOOT_DEVICE_NAND, |
| 49 | UNIPHIER_BOOT_DEVICE_NAND, |
| 50 | UNIPHIER_BOOT_DEVICE_NAND, |
| 51 | UNIPHIER_BOOT_DEVICE_NAND, |
| 52 | UNIPHIER_BOOT_DEVICE_NAND, |
| 53 | UNIPHIER_BOOT_DEVICE_NAND, |
| 54 | UNIPHIER_BOOT_DEVICE_NAND, |
| 55 | UNIPHIER_BOOT_DEVICE_NAND, |
| 56 | UNIPHIER_BOOT_DEVICE_NAND, |
| 57 | UNIPHIER_BOOT_DEVICE_NAND, |
| 58 | UNIPHIER_BOOT_DEVICE_NAND, |
| 59 | UNIPHIER_BOOT_DEVICE_NAND, |
| 60 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 61 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 62 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 63 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 64 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 65 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 66 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 67 | UNIPHIER_BOOT_DEVICE_NOR, |
| 68 | }; |
| 69 | |
| 70 | static unsigned int uniphier_ld11_get_boot_device(uint32_t pinmon) |
| 71 | { |
| 72 | unsigned int boot_sel = (pinmon >> 1) & 0x1f; |
| 73 | |
| 74 | assert(boot_sel < ARRAY_SIZE(uniphier_ld11_boot_device_table)); |
| 75 | |
| 76 | return uniphier_ld11_boot_device_table[boot_sel]; |
| 77 | } |
| 78 | |
| 79 | static const unsigned int uniphier_pxs3_boot_device_table[] = { |
| 80 | UNIPHIER_BOOT_DEVICE_NAND, |
| 81 | UNIPHIER_BOOT_DEVICE_NAND, |
| 82 | UNIPHIER_BOOT_DEVICE_NAND, |
| 83 | UNIPHIER_BOOT_DEVICE_NAND, |
| 84 | UNIPHIER_BOOT_DEVICE_NAND, |
| 85 | UNIPHIER_BOOT_DEVICE_NAND, |
| 86 | UNIPHIER_BOOT_DEVICE_NAND, |
| 87 | UNIPHIER_BOOT_DEVICE_NAND, |
| 88 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 89 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 90 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 91 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 92 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 93 | UNIPHIER_BOOT_DEVICE_EMMC, |
| 94 | UNIPHIER_BOOT_DEVICE_NAND, |
| 95 | UNIPHIER_BOOT_DEVICE_NAND, |
| 96 | }; |
| 97 | |
| 98 | static unsigned int uniphier_pxs3_get_boot_device(uint32_t pinmon) |
| 99 | { |
| 100 | unsigned int boot_sel = (pinmon >> 1) & 0xf; |
| 101 | |
| 102 | assert(boot_sel < ARRAY_SIZE(uniphier_pxs3_boot_device_table)); |
| 103 | |
| 104 | return uniphier_pxs3_boot_device_table[boot_sel]; |
| 105 | } |
| 106 | |
| 107 | struct uniphier_boot_device_info { |
| 108 | int (*is_usb_boot)(uint32_t pinmon); |
| 109 | unsigned int (*get_boot_device)(uint32_t pinmon); |
| 110 | }; |
| 111 | |
| 112 | static const struct uniphier_boot_device_info uniphier_boot_device_info[] = { |
| 113 | [UNIPHIER_SOC_LD11] = { |
| 114 | .is_usb_boot = uniphier_ld11_is_usb_boot, |
| 115 | .get_boot_device = uniphier_ld11_get_boot_device, |
| 116 | }, |
| 117 | [UNIPHIER_SOC_LD20] = { |
| 118 | .is_usb_boot = uniphier_ld20_is_usb_boot, |
| 119 | .get_boot_device = uniphier_ld11_get_boot_device, |
| 120 | }, |
| 121 | [UNIPHIER_SOC_PXS3] = { |
| 122 | .is_usb_boot = uniphier_pxs3_is_usb_boot, |
| 123 | .get_boot_device = uniphier_pxs3_get_boot_device, |
| 124 | }, |
| 125 | }; |
| 126 | |
| 127 | unsigned int uniphier_get_boot_device(unsigned int soc) |
| 128 | { |
| 129 | const struct uniphier_boot_device_info *info; |
| 130 | uint32_t pinmon; |
| 131 | |
| 132 | assert(soc < ARRAY_SIZE(uniphier_boot_device_info)); |
| 133 | info = &uniphier_boot_device_info[soc]; |
| 134 | |
| 135 | pinmon = mmio_read_32(UNIPHIER_PINMON0); |
| 136 | |
| 137 | if (!(pinmon & BIT(29))) |
| 138 | return UNIPHIER_BOOT_DEVICE_NOR; |
| 139 | |
| 140 | if (info->is_usb_boot(pinmon)) |
| 141 | return UNIPHIER_BOOT_DEVICE_USB; |
| 142 | |
| 143 | return info->get_boot_device(pinmon); |
| 144 | } |
| 145 | |
| 146 | static const bool uniphier_have_onchip_scp[] = { |
| 147 | [UNIPHIER_SOC_LD11] = true, |
| 148 | [UNIPHIER_SOC_LD20] = true, |
| 149 | [UNIPHIER_SOC_PXS3] = false, |
| 150 | }; |
| 151 | |
| 152 | unsigned int uniphier_get_boot_master(unsigned int soc) |
| 153 | { |
| 154 | assert(soc < ARRAY_SIZE(uniphier_have_onchip_scp)); |
| 155 | |
| 156 | if (uniphier_have_onchip_scp[soc]) { |
| 157 | if (mmio_read_32(UNIPHIER_PINMON0) & BIT(27)) |
| 158 | return UNIPHIER_BOOT_MASTER_THIS; |
| 159 | else |
| 160 | return UNIPHIER_BOOT_MASTER_SCP; |
| 161 | } else { |
| 162 | return UNIPHIER_BOOT_MASTER_EXT; |
| 163 | } |
| 164 | } |