1 /* 2 * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <stdbool.h> 8 #include <string.h> 9 10 #include <common/debug.h> 11 #include <drivers/generic_delay_timer.h> 12 #include <lib/mmio.h> 13 #include <lib/xlat_tables/xlat_tables.h> 14 #include <plat_ipi.h> 15 #include <plat_private.h> 16 #include <plat/common/platform.h> 17 18 #include "pm_api_sys.h" 19 20 /* 21 * Table of regions to map using the MMU. 22 * This doesn't include TZRAM as the 'mem_layout' argument passed to 23 * configure_mmu_elx() will give the available subset of that, 24 */ 25 const mmap_region_t plat_arm_mmap[] = { 26 { DEVICE0_BASE, DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW | MT_SECURE }, 27 { DEVICE1_BASE, DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW | MT_SECURE }, 28 { CRF_APB_BASE, CRF_APB_BASE, CRF_APB_SIZE, MT_DEVICE | MT_RW | MT_SECURE }, 29 {0} 30 }; 31 32 static unsigned int zynqmp_get_silicon_ver(void) 33 { 34 static unsigned int ver; 35 36 if (!ver) { 37 ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + 38 ZYNQMP_CSU_VERSION_OFFSET); 39 ver &= ZYNQMP_SILICON_VER_MASK; 40 ver >>= ZYNQMP_SILICON_VER_SHIFT; 41 } 42 43 return ver; 44 } 45 46 unsigned int zynqmp_get_uart_clk(void) 47 { 48 unsigned int ver = zynqmp_get_silicon_ver(); 49 50 if (ver == ZYNQMP_CSU_VERSION_QEMU) 51 return 133000000; 52 else 53 return 100000000; 54 } 55 56 #if LOG_LEVEL >= LOG_LEVEL_NOTICE 57 static const struct { 58 unsigned int id; 59 unsigned int ver; 60 char *name; 61 bool evexists; 62 } zynqmp_devices[] = { 63 { 64 .id = 0x10, 65 .name = "3EG", 66 }, 67 { 68 .id = 0x10, 69 .ver = 0x2c, 70 .name = "3CG", 71 }, 72 { 73 .id = 0x11, 74 .name = "2EG", 75 }, 76 { 77 .id = 0x11, 78 .ver = 0x2c, 79 .name = "2CG", 80 }, 81 { 82 .id = 0x20, 83 .name = "5EV", 84 .evexists = true, 85 }, 86 { 87 .id = 0x20, 88 .ver = 0x100, 89 .name = "5EG", 90 .evexists = true, 91 }, 92 { 93 .id = 0x20, 94 .ver = 0x12c, 95 .name = "5CG", 96 }, 97 { 98 .id = 0x21, 99 .name = "4EV", 100 .evexists = true, 101 }, 102 { 103 .id = 0x21, 104 .ver = 0x100, 105 .name = "4EG", 106 .evexists = true, 107 }, 108 { 109 .id = 0x21, 110 .ver = 0x12c, 111 .name = "4CG", 112 }, 113 { 114 .id = 0x30, 115 .name = "7EV", 116 .evexists = true, 117 }, 118 { 119 .id = 0x30, 120 .ver = 0x100, 121 .name = "7EG", 122 .evexists = true, 123 }, 124 { 125 .id = 0x30, 126 .ver = 0x12c, 127 .name = "7CG", 128 }, 129 { 130 .id = 0x38, 131 .name = "9EG", 132 }, 133 { 134 .id = 0x38, 135 .ver = 0x2c, 136 .name = "9CG", 137 }, 138 { 139 .id = 0x39, 140 .name = "6EG", 141 }, 142 { 143 .id = 0x39, 144 .ver = 0x2c, 145 .name = "6CG", 146 }, 147 { 148 .id = 0x40, 149 .name = "11EG", 150 }, 151 { /* For testing purpose only */ 152 .id = 0x50, 153 .ver = 0x2c, 154 .name = "15CG", 155 }, 156 { 157 .id = 0x50, 158 .name = "15EG", 159 }, 160 { 161 .id = 0x58, 162 .name = "19EG", 163 }, 164 { 165 .id = 0x59, 166 .name = "17EG", 167 }, 168 { 169 .id = 0x60, 170 .name = "28DR", 171 }, 172 { 173 .id = 0x61, 174 .name = "21DR", 175 }, 176 { 177 .id = 0x62, 178 .name = "29DR", 179 }, 180 { 181 .id = 0x63, 182 .name = "23DR", 183 }, 184 { 185 .id = 0x64, 186 .name = "27DR", 187 }, 188 { 189 .id = 0x65, 190 .name = "25DR", 191 }, 192 }; 193 194 #define ZYNQMP_PL_STATUS_BIT 9 195 #define ZYNQMP_PL_STATUS_MASK BIT(ZYNQMP_PL_STATUS_BIT) 196 #define ZYNQMP_CSU_VERSION_MASK ~(ZYNQMP_PL_STATUS_MASK) 197 198 static char *zynqmp_get_silicon_idcode_name(void) 199 { 200 uint32_t id, ver, chipid[2]; 201 size_t i, j, len; 202 const char *name = "EG/EV"; 203 204 #ifdef IMAGE_BL32 205 /* 206 * For BL32, get the chip id info directly by reading corresponding 207 * registers instead of making pm call. This has limitation 208 * that these registers should be configured to have access 209 * from APU which is default case. 210 */ 211 chipid[0] = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_IDCODE_OFFSET); 212 chipid[1] = mmio_read_32(EFUSE_BASEADDR + EFUSE_IPDISABLE_OFFSET); 213 #else 214 if (pm_get_chipid(chipid) != PM_RET_SUCCESS) 215 return "UNKN"; 216 #endif 217 218 id = chipid[0] & (ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK | 219 ZYNQMP_CSU_IDCODE_SVD_MASK); 220 id >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT; 221 ver = chipid[1] >> ZYNQMP_EFUSE_IPDISABLE_SHIFT; 222 223 for (i = 0; i < ARRAY_SIZE(zynqmp_devices); i++) { 224 if (zynqmp_devices[i].id == id && 225 zynqmp_devices[i].ver == (ver & ZYNQMP_CSU_VERSION_MASK)) 226 break; 227 } 228 229 if (i >= ARRAY_SIZE(zynqmp_devices)) 230 return "UNKN"; 231 232 if (!zynqmp_devices[i].evexists) 233 return zynqmp_devices[i].name; 234 235 if (ver & ZYNQMP_PL_STATUS_MASK) 236 return zynqmp_devices[i].name; 237 238 len = strlen(zynqmp_devices[i].name) - 2; 239 for (j = 0; j < strlen(name); j++) { 240 zynqmp_devices[i].name[len] = name[j]; 241 len++; 242 } 243 zynqmp_devices[i].name[len] = '\0'; 244 245 return zynqmp_devices[i].name; 246 } 247 248 static unsigned int zynqmp_get_rtl_ver(void) 249 { 250 uint32_t ver; 251 252 ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_VERSION_OFFSET); 253 ver &= ZYNQMP_RTL_VER_MASK; 254 ver >>= ZYNQMP_RTL_VER_SHIFT; 255 256 return ver; 257 } 258 259 static char *zynqmp_print_silicon_idcode(void) 260 { 261 uint32_t id, maskid, tmp; 262 263 id = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_IDCODE_OFFSET); 264 265 tmp = id; 266 tmp &= ZYNQMP_CSU_IDCODE_XILINX_ID_MASK | 267 ZYNQMP_CSU_IDCODE_FAMILY_MASK; 268 maskid = ZYNQMP_CSU_IDCODE_XILINX_ID << ZYNQMP_CSU_IDCODE_XILINX_ID_SHIFT | 269 ZYNQMP_CSU_IDCODE_FAMILY << ZYNQMP_CSU_IDCODE_FAMILY_SHIFT; 270 if (tmp != maskid) { 271 ERROR("Incorrect XILINX IDCODE 0x%x, maskid 0x%x\n", id, maskid); 272 return "UNKN"; 273 } 274 VERBOSE("Xilinx IDCODE 0x%x\n", id); 275 return zynqmp_get_silicon_idcode_name(); 276 } 277 278 static unsigned int zynqmp_get_ps_ver(void) 279 { 280 uint32_t ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_VERSION_OFFSET); 281 282 ver &= ZYNQMP_PS_VER_MASK; 283 ver >>= ZYNQMP_PS_VER_SHIFT; 284 285 return ver + 1; 286 } 287 288 static void zynqmp_print_platform_name(void) 289 { 290 unsigned int ver = zynqmp_get_silicon_ver(); 291 unsigned int rtl = zynqmp_get_rtl_ver(); 292 char *label = "Unknown"; 293 294 switch (ver) { 295 case ZYNQMP_CSU_VERSION_QEMU: 296 label = "QEMU"; 297 break; 298 case ZYNQMP_CSU_VERSION_SILICON: 299 label = "silicon"; 300 break; 301 default: 302 /* Do nothing in default case */ 303 break; 304 } 305 306 NOTICE("ATF running on XCZU%s/%s v%d/RTL%d.%d at 0x%x\n", 307 zynqmp_print_silicon_idcode(), label, zynqmp_get_ps_ver(), 308 (rtl & 0xf0) >> 4, rtl & 0xf, BL31_BASE); 309 } 310 #else 311 static inline void zynqmp_print_platform_name(void) { } 312 #endif 313 314 unsigned int zynqmp_get_bootmode(void) 315 { 316 uint32_t r; 317 unsigned int ret; 318 319 ret = pm_mmio_read(CRL_APB_BOOT_MODE_USER, &r); 320 321 if (ret != PM_RET_SUCCESS) 322 r = mmio_read_32(CRL_APB_BOOT_MODE_USER); 323 324 return r & CRL_APB_BOOT_MODE_MASK; 325 } 326 327 void zynqmp_config_setup(void) 328 { 329 /* Configure IPI data for ZynqMP */ 330 zynqmp_ipi_config_table_init(); 331 332 zynqmp_print_platform_name(); 333 generic_delay_timer_init(); 334 } 335 336 unsigned int plat_get_syscnt_freq2(void) 337 { 338 unsigned int ver = zynqmp_get_silicon_ver(); 339 340 if (ver == ZYNQMP_CSU_VERSION_QEMU) 341 return 50000000; 342 else 343 return mmio_read_32(IOU_SCNTRS_BASEFREQ); 344 } 345