Pankaj Gupta | 9f29965 | 2020-12-09 14:02:40 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2021 NXP |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <assert.h> |
| 9 | #include <string.h> |
| 10 | |
| 11 | #include <common/debug.h> |
| 12 | #include <dcfg.h> |
| 13 | #include <drivers/delay_timer.h> |
| 14 | #include <fuse_prov.h> |
| 15 | #include <io_block.h> |
| 16 | #include <io_driver.h> |
| 17 | #include <io_fip.h> |
| 18 | #include <io_memmap.h> |
| 19 | #include <io_storage.h> |
| 20 | #include <lib/utils.h> |
| 21 | #include <nxp_gpio.h> |
| 22 | #include <sfp.h> |
| 23 | #include <sfp_error_codes.h> |
| 24 | #include <tools_share/firmware_image_package.h> |
| 25 | |
| 26 | #include "fuse_io.h" |
| 27 | #include <load_img.h> |
| 28 | #include <plat/common/platform.h> |
| 29 | #include "plat_common.h" |
| 30 | #include "platform_def.h" |
| 31 | |
| 32 | extern uintptr_t backend_dev_handle; |
| 33 | |
| 34 | static uint32_t fuse_fip; |
| 35 | |
| 36 | static uintptr_t fuse_fip_dev_handle; |
| 37 | |
| 38 | static io_block_spec_t fuse_fip_block_spec = { |
| 39 | .offset = PLAT_FUSE_FIP_OFFSET, |
| 40 | .length = PLAT_FUSE_FIP_MAX_SIZE |
| 41 | }; |
| 42 | |
| 43 | static const io_uuid_spec_t fuse_prov_uuid_spec = { |
| 44 | .uuid = UUID_FUSE_PROV, |
| 45 | }; |
| 46 | |
| 47 | static const io_uuid_spec_t fuse_up_uuid_spec = { |
| 48 | .uuid = UUID_FUSE_UP, |
| 49 | }; |
| 50 | |
| 51 | static int open_fuse_fip(const uintptr_t spec); |
| 52 | |
| 53 | struct plat_io_policy { |
| 54 | uintptr_t *dev_handle; |
| 55 | uintptr_t image_spec; |
| 56 | int (*check)(const uintptr_t spec); |
| 57 | }; |
| 58 | |
| 59 | /* By default, ARM platforms load images from the FIP */ |
| 60 | static const struct plat_io_policy fuse_policies[] = { |
| 61 | [FUSE_FIP_IMAGE_ID - FUSE_FIP_IMAGE_ID] = { |
| 62 | &backend_dev_handle, |
| 63 | (uintptr_t)&fuse_fip_block_spec, |
| 64 | NULL |
| 65 | }, |
| 66 | [FUSE_PROV_IMAGE_ID - FUSE_FIP_IMAGE_ID] = { |
| 67 | &fuse_fip_dev_handle, |
| 68 | (uintptr_t)&fuse_prov_uuid_spec, |
| 69 | open_fuse_fip |
| 70 | }, |
| 71 | [FUSE_UP_IMAGE_ID - FUSE_FIP_IMAGE_ID] = { |
| 72 | &fuse_fip_dev_handle, |
| 73 | (uintptr_t)&fuse_up_uuid_spec, |
| 74 | open_fuse_fip |
| 75 | } |
| 76 | }; |
| 77 | |
| 78 | static int open_fuse_fip(const uintptr_t spec) |
| 79 | { |
| 80 | int result; |
| 81 | uintptr_t local_image_handle; |
| 82 | |
| 83 | /* See if a Firmware Image Package is available */ |
| 84 | result = io_dev_init(fuse_fip_dev_handle, (uintptr_t)FUSE_FIP_IMAGE_ID); |
| 85 | if (result == 0) { |
| 86 | result = io_open(fuse_fip_dev_handle, |
| 87 | spec, |
| 88 | &local_image_handle); |
| 89 | if (result == 0) { |
| 90 | VERBOSE("Using FIP\n"); |
| 91 | io_close(local_image_handle); |
| 92 | } |
| 93 | } |
| 94 | return result; |
| 95 | } |
| 96 | |
| 97 | /* The image can be one of the DDR PHY images, which can be sleected via DDR |
| 98 | * policies |
| 99 | */ |
| 100 | int plat_get_fuse_image_source(unsigned int image_id, |
| 101 | uintptr_t *dev_handle, |
| 102 | uintptr_t *image_spec, |
| 103 | int (*check)(const uintptr_t spec)) |
| 104 | { |
| 105 | int result; |
| 106 | const struct plat_io_policy *policy; |
| 107 | |
| 108 | assert(image_id < (FUSE_FIP_IMAGE_ID + ARRAY_SIZE(fuse_policies))); |
| 109 | |
| 110 | policy = &fuse_policies[image_id - FUSE_FIP_IMAGE_ID]; |
| 111 | |
| 112 | if (image_id == FUSE_FIP_IMAGE_ID) { |
| 113 | result = check(policy->image_spec); |
| 114 | } else { |
| 115 | result = policy->check(policy->image_spec); |
| 116 | } |
| 117 | |
| 118 | if (result == 0) { |
| 119 | *image_spec = policy->image_spec; |
| 120 | *dev_handle = *(policy->dev_handle); |
| 121 | } |
| 122 | return result; |
| 123 | } |
| 124 | |
| 125 | int fuse_fip_setup(const io_dev_connector_t *fip_dev_con, unsigned int boot_dev) |
| 126 | { |
| 127 | int io_result; |
| 128 | size_t fuse_fip_offset = PLAT_FUSE_FIP_OFFSET; |
| 129 | |
| 130 | /* Open connections to fuse fip and cache the handles */ |
| 131 | io_result = io_dev_open(fip_dev_con, (uintptr_t)&fuse_fip, |
| 132 | &fuse_fip_dev_handle); |
| 133 | |
| 134 | assert(io_result == 0); |
| 135 | |
| 136 | switch (boot_dev) { |
| 137 | #if QSPI_BOOT |
| 138 | case BOOT_DEVICE_QSPI: |
| 139 | fuse_fip_offset += NXP_QSPI_FLASH_ADDR; |
| 140 | break; |
| 141 | #endif |
| 142 | #if NOR_BOOT |
| 143 | case BOOT_DEVICE_IFC_NOR: |
| 144 | fuse_fip_offset += NXP_NOR_FLASH_ADDR; |
| 145 | break; |
| 146 | #endif |
| 147 | #if FLEXSPI_NOR_BOOT |
| 148 | case BOOT_DEVICE_FLEXSPI_NOR: |
| 149 | fuse_fip_offset += NXP_FLEXSPI_FLASH_ADDR; |
| 150 | break; |
| 151 | #endif |
| 152 | default: |
| 153 | break; |
| 154 | } |
| 155 | |
| 156 | fuse_fip_block_spec.offset = fuse_fip_offset; |
| 157 | |
| 158 | return io_result; |
| 159 | } |
| 160 | |
| 161 | int fip_fuse_provisioning(uintptr_t image_buf, uint32_t size) |
| 162 | { |
| 163 | uint32_t bit_num; |
| 164 | uint32_t *gpio_base_addr = NULL; |
| 165 | struct fuse_hdr_t *fuse_hdr = NULL; |
| 166 | uint8_t barker[] = {0x68U, 0x39U, 0x27U, 0x81U}; |
| 167 | int ret = -1; |
| 168 | |
| 169 | if (sfp_check_oem_wp() == 0) { |
| 170 | ret = load_img(FUSE_PROV_IMAGE_ID, &image_buf, &size); |
| 171 | if (ret != 0) { |
| 172 | ERROR("Failed to load FUSE PRIV image\n"); |
| 173 | assert(ret == 0); |
| 174 | } |
| 175 | fuse_hdr = (struct fuse_hdr_t *)image_buf; |
| 176 | |
| 177 | /* Check barker code */ |
| 178 | if (memcmp(fuse_hdr->barker, barker, sizeof(barker)) != 0) { |
| 179 | ERROR("FUSE Barker code mismatch.\n"); |
| 180 | error_handler(ERROR_FUSE_BARKER); |
| 181 | return 1; |
| 182 | } |
| 183 | |
| 184 | /* Check if GPIO pin to be set for POVDD */ |
| 185 | if (((fuse_hdr->flags >> FLAG_POVDD_SHIFT) & 0x1) != 0) { |
| 186 | gpio_base_addr = |
| 187 | select_gpio_n_bitnum(fuse_hdr->povdd_gpio, |
| 188 | &bit_num); |
| 189 | /* |
| 190 | * Add delay so that Efuse gets the power |
| 191 | * when GPIO is enabled. |
| 192 | */ |
| 193 | ret = set_gpio_bit(gpio_base_addr, bit_num); |
| 194 | mdelay(EFUSE_POWERUP_DELAY_mSec); |
| 195 | } else { |
| 196 | ret = (board_enable_povdd() == true) ? 0 : PLAT_ERROR_ENABLE_POVDD; |
| 197 | } |
| 198 | if (ret != 0) { |
| 199 | ERROR("Error enabling board POVDD: %d\n", ret); |
| 200 | ERROR("Only SFP mirror register will be set.\n"); |
| 201 | } |
| 202 | |
| 203 | provision_fuses(image_buf, ret == 0); |
| 204 | |
| 205 | /* Check if GPIO pin to be reset for POVDD */ |
| 206 | if (((fuse_hdr->flags >> FLAG_POVDD_SHIFT) & 0x1) != 0) { |
| 207 | if (gpio_base_addr == NULL) { |
| 208 | gpio_base_addr = |
| 209 | select_gpio_n_bitnum( |
| 210 | fuse_hdr->povdd_gpio, |
| 211 | &bit_num); |
| 212 | } |
| 213 | ret = clr_gpio_bit(gpio_base_addr, bit_num); |
| 214 | } else { |
| 215 | ret = board_disable_povdd() ? 0 : PLAT_ERROR_DISABLE_POVDD; |
| 216 | } |
| 217 | |
| 218 | if (ret != 0) { |
| 219 | ERROR("Error disabling board POVDD: %d\n", ret); |
| 220 | } |
| 221 | } |
| 222 | return 0; |
| 223 | } |