1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * arch/arm/mach-dove/common.c 4 * 5 * Core functions for Marvell Dove 88AP510 System On Chip 6 */ 7 8 #include <linux/clk-provider.h> 9 #include <linux/dma-mapping.h> 10 #include <linux/init.h> 11 #include <linux/io.h> 12 #include <linux/platform_data/dma-mv_xor.h> 13 #include <linux/platform_data/usb-ehci-orion.h> 14 #include <linux/platform_device.h> 15 #include <linux/soc/dove/pmu.h> 16 #include <asm/hardware/cache-tauros2.h> 17 #include <asm/mach/arch.h> 18 #include <asm/mach/map.h> 19 #include <asm/mach/time.h> 20 #include <plat/common.h> 21 #include <plat/irq.h> 22 #include <plat/time.h> 23 #include "bridge-regs.h" 24 #include "pm.h" 25 #include "common.h" 26 27 /* These can go away once Dove uses the mvebu-mbus DT binding */ 28 #define DOVE_MBUS_PCIE0_MEM_TARGET 0x4 29 #define DOVE_MBUS_PCIE0_MEM_ATTR 0xe8 30 #define DOVE_MBUS_PCIE0_IO_TARGET 0x4 31 #define DOVE_MBUS_PCIE0_IO_ATTR 0xe0 32 #define DOVE_MBUS_PCIE1_MEM_TARGET 0x8 33 #define DOVE_MBUS_PCIE1_MEM_ATTR 0xe8 34 #define DOVE_MBUS_PCIE1_IO_TARGET 0x8 35 #define DOVE_MBUS_PCIE1_IO_ATTR 0xe0 36 #define DOVE_MBUS_CESA_TARGET 0x3 37 #define DOVE_MBUS_CESA_ATTR 0x1 38 #define DOVE_MBUS_BOOTROM_TARGET 0x1 39 #define DOVE_MBUS_BOOTROM_ATTR 0xfd 40 #define DOVE_MBUS_SCRATCHPAD_TARGET 0xd 41 #define DOVE_MBUS_SCRATCHPAD_ATTR 0x0 42 43 /***************************************************************************** 44 * I/O Address Mapping 45 ****************************************************************************/ 46 static struct map_desc __maybe_unused dove_io_desc[] __initdata = { 47 { 48 .virtual = (unsigned long) DOVE_SB_REGS_VIRT_BASE, 49 .pfn = __phys_to_pfn(DOVE_SB_REGS_PHYS_BASE), 50 .length = DOVE_SB_REGS_SIZE, 51 .type = MT_DEVICE, 52 }, { 53 .virtual = (unsigned long) DOVE_NB_REGS_VIRT_BASE, 54 .pfn = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE), 55 .length = DOVE_NB_REGS_SIZE, 56 .type = MT_DEVICE, 57 }, 58 }; 59 60 void __init dove_map_io(void) 61 { 62 iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc)); 63 } 64 65 /***************************************************************************** 66 * CLK tree 67 ****************************************************************************/ 68 static int dove_tclk; 69 70 static DEFINE_SPINLOCK(gating_lock); 71 static struct clk *tclk; 72 73 static struct clk __init *dove_register_gate(const char *name, 74 const char *parent, u8 bit_idx) 75 { 76 return clk_register_gate(NULL, name, parent, 0, 77 (void __iomem *)CLOCK_GATING_CONTROL, 78 bit_idx, 0, &gating_lock); 79 } 80 81 static void __init dove_clk_init(void) 82 { 83 struct clk *usb0, *usb1, *sata, *pex0, *pex1, *sdio0, *sdio1; 84 struct clk *nand, *camera, *i2s0, *i2s1, *crypto, *ac97, *pdma; 85 struct clk *xor0, *xor1, *ge, *gephy; 86 87 tclk = clk_register_fixed_rate(NULL, "tclk", NULL, 0, dove_tclk); 88 89 usb0 = dove_register_gate("usb0", "tclk", CLOCK_GATING_BIT_USB0); 90 usb1 = dove_register_gate("usb1", "tclk", CLOCK_GATING_BIT_USB1); 91 sata = dove_register_gate("sata", "tclk", CLOCK_GATING_BIT_SATA); 92 pex0 = dove_register_gate("pex0", "tclk", CLOCK_GATING_BIT_PCIE0); 93 pex1 = dove_register_gate("pex1", "tclk", CLOCK_GATING_BIT_PCIE1); 94 sdio0 = dove_register_gate("sdio0", "tclk", CLOCK_GATING_BIT_SDIO0); 95 sdio1 = dove_register_gate("sdio1", "tclk", CLOCK_GATING_BIT_SDIO1); 96 nand = dove_register_gate("nand", "tclk", CLOCK_GATING_BIT_NAND); 97 camera = dove_register_gate("camera", "tclk", CLOCK_GATING_BIT_CAMERA); 98 i2s0 = dove_register_gate("i2s0", "tclk", CLOCK_GATING_BIT_I2S0); 99 i2s1 = dove_register_gate("i2s1", "tclk", CLOCK_GATING_BIT_I2S1); 100 crypto = dove_register_gate("crypto", "tclk", CLOCK_GATING_BIT_CRYPTO); 101 ac97 = dove_register_gate("ac97", "tclk", CLOCK_GATING_BIT_AC97); 102 pdma = dove_register_gate("pdma", "tclk", CLOCK_GATING_BIT_PDMA); 103 xor0 = dove_register_gate("xor0", "tclk", CLOCK_GATING_BIT_XOR0); 104 xor1 = dove_register_gate("xor1", "tclk", CLOCK_GATING_BIT_XOR1); 105 gephy = dove_register_gate("gephy", "tclk", CLOCK_GATING_BIT_GIGA_PHY); 106 ge = dove_register_gate("ge", "gephy", CLOCK_GATING_BIT_GBE); 107 108 orion_clkdev_add(NULL, "orion_spi.0", tclk); 109 orion_clkdev_add(NULL, "orion_spi.1", tclk); 110 orion_clkdev_add(NULL, "orion_wdt", tclk); 111 orion_clkdev_add(NULL, "mv64xxx_i2c.0", tclk); 112 113 orion_clkdev_add(NULL, "orion-ehci.0", usb0); 114 orion_clkdev_add(NULL, "orion-ehci.1", usb1); 115 orion_clkdev_add(NULL, "mv643xx_eth_port.0", ge); 116 orion_clkdev_add(NULL, "sata_mv.0", sata); 117 orion_clkdev_add("0", "pcie", pex0); 118 orion_clkdev_add("1", "pcie", pex1); 119 orion_clkdev_add(NULL, "sdhci-dove.0", sdio0); 120 orion_clkdev_add(NULL, "sdhci-dove.1", sdio1); 121 orion_clkdev_add(NULL, "orion_nand", nand); 122 orion_clkdev_add(NULL, "cafe1000-ccic.0", camera); 123 orion_clkdev_add(NULL, "mvebu-audio.0", i2s0); 124 orion_clkdev_add(NULL, "mvebu-audio.1", i2s1); 125 orion_clkdev_add(NULL, "mv_crypto", crypto); 126 orion_clkdev_add(NULL, "dove-ac97", ac97); 127 orion_clkdev_add(NULL, "dove-pdma", pdma); 128 orion_clkdev_add(NULL, MV_XOR_NAME ".0", xor0); 129 orion_clkdev_add(NULL, MV_XOR_NAME ".1", xor1); 130 } 131 132 /***************************************************************************** 133 * EHCI0 134 ****************************************************************************/ 135 void __init dove_ehci0_init(void) 136 { 137 orion_ehci_init(DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0, EHCI_PHY_NA); 138 } 139 140 /***************************************************************************** 141 * EHCI1 142 ****************************************************************************/ 143 void __init dove_ehci1_init(void) 144 { 145 orion_ehci_1_init(DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1); 146 } 147 148 /***************************************************************************** 149 * GE00 150 ****************************************************************************/ 151 void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data) 152 { 153 orion_ge00_init(eth_data, DOVE_GE00_PHYS_BASE, 154 IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR, 155 1600); 156 } 157 158 /***************************************************************************** 159 * SoC RTC 160 ****************************************************************************/ 161 static void __init dove_rtc_init(void) 162 { 163 orion_rtc_init(DOVE_RTC_PHYS_BASE, IRQ_DOVE_RTC); 164 } 165 166 /***************************************************************************** 167 * SATA 168 ****************************************************************************/ 169 void __init dove_sata_init(struct mv_sata_platform_data *sata_data) 170 { 171 orion_sata_init(sata_data, DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA); 172 173 } 174 175 /***************************************************************************** 176 * UART0 177 ****************************************************************************/ 178 void __init dove_uart0_init(void) 179 { 180 orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE, 181 IRQ_DOVE_UART_0, tclk); 182 } 183 184 /***************************************************************************** 185 * UART1 186 ****************************************************************************/ 187 void __init dove_uart1_init(void) 188 { 189 orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE, 190 IRQ_DOVE_UART_1, tclk); 191 } 192 193 /***************************************************************************** 194 * UART2 195 ****************************************************************************/ 196 void __init dove_uart2_init(void) 197 { 198 orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE, 199 IRQ_DOVE_UART_2, tclk); 200 } 201 202 /***************************************************************************** 203 * UART3 204 ****************************************************************************/ 205 void __init dove_uart3_init(void) 206 { 207 orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE, 208 IRQ_DOVE_UART_3, tclk); 209 } 210 211 /***************************************************************************** 212 * SPI 213 ****************************************************************************/ 214 void __init dove_spi0_init(void) 215 { 216 orion_spi_init(DOVE_SPI0_PHYS_BASE); 217 } 218 219 void __init dove_spi1_init(void) 220 { 221 orion_spi_1_init(DOVE_SPI1_PHYS_BASE); 222 } 223 224 /***************************************************************************** 225 * I2C 226 ****************************************************************************/ 227 void __init dove_i2c_init(void) 228 { 229 orion_i2c_init(DOVE_I2C_PHYS_BASE, IRQ_DOVE_I2C, 10); 230 } 231 232 /***************************************************************************** 233 * Time handling 234 ****************************************************************************/ 235 void __init dove_init_early(void) 236 { 237 orion_time_set_base(TIMER_VIRT_BASE); 238 mvebu_mbus_init("marvell,dove-mbus", 239 BRIDGE_WINS_BASE, BRIDGE_WINS_SZ, 240 DOVE_MC_WINS_BASE, DOVE_MC_WINS_SZ); 241 } 242 243 static int __init dove_find_tclk(void) 244 { 245 return 166666667; 246 } 247 248 void __init dove_timer_init(void) 249 { 250 dove_tclk = dove_find_tclk(); 251 orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR, 252 IRQ_DOVE_BRIDGE, dove_tclk); 253 } 254 255 /***************************************************************************** 256 * XOR 0 257 ****************************************************************************/ 258 static void __init dove_xor0_init(void) 259 { 260 orion_xor0_init(DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE, 261 IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01); 262 } 263 264 /***************************************************************************** 265 * XOR 1 266 ****************************************************************************/ 267 static void __init dove_xor1_init(void) 268 { 269 orion_xor1_init(DOVE_XOR1_PHYS_BASE, DOVE_XOR1_HIGH_PHYS_BASE, 270 IRQ_DOVE_XOR_10, IRQ_DOVE_XOR_11); 271 } 272 273 /***************************************************************************** 274 * SDIO 275 ****************************************************************************/ 276 static u64 sdio_dmamask = DMA_BIT_MASK(32); 277 278 static struct resource dove_sdio0_resources[] = { 279 { 280 .start = DOVE_SDIO0_PHYS_BASE, 281 .end = DOVE_SDIO0_PHYS_BASE + 0xff, 282 .flags = IORESOURCE_MEM, 283 }, { 284 .start = IRQ_DOVE_SDIO0, 285 .end = IRQ_DOVE_SDIO0, 286 .flags = IORESOURCE_IRQ, 287 }, 288 }; 289 290 static struct platform_device dove_sdio0 = { 291 .name = "sdhci-dove", 292 .id = 0, 293 .dev = { 294 .dma_mask = &sdio_dmamask, 295 .coherent_dma_mask = DMA_BIT_MASK(32), 296 }, 297 .resource = dove_sdio0_resources, 298 .num_resources = ARRAY_SIZE(dove_sdio0_resources), 299 }; 300 301 void __init dove_sdio0_init(void) 302 { 303 platform_device_register(&dove_sdio0); 304 } 305 306 static struct resource dove_sdio1_resources[] = { 307 { 308 .start = DOVE_SDIO1_PHYS_BASE, 309 .end = DOVE_SDIO1_PHYS_BASE + 0xff, 310 .flags = IORESOURCE_MEM, 311 }, { 312 .start = IRQ_DOVE_SDIO1, 313 .end = IRQ_DOVE_SDIO1, 314 .flags = IORESOURCE_IRQ, 315 }, 316 }; 317 318 static struct platform_device dove_sdio1 = { 319 .name = "sdhci-dove", 320 .id = 1, 321 .dev = { 322 .dma_mask = &sdio_dmamask, 323 .coherent_dma_mask = DMA_BIT_MASK(32), 324 }, 325 .resource = dove_sdio1_resources, 326 .num_resources = ARRAY_SIZE(dove_sdio1_resources), 327 }; 328 329 void __init dove_sdio1_init(void) 330 { 331 platform_device_register(&dove_sdio1); 332 } 333 334 void __init dove_setup_cpu_wins(void) 335 { 336 /* 337 * The PCIe windows will no longer be statically allocated 338 * here once Dove is migrated to the pci-mvebu driver. The 339 * non-PCIe windows will no longer be created here once Dove 340 * fully moves to DT. 341 */ 342 mvebu_mbus_add_window_remap_by_id(DOVE_MBUS_PCIE0_IO_TARGET, 343 DOVE_MBUS_PCIE0_IO_ATTR, 344 DOVE_PCIE0_IO_PHYS_BASE, 345 DOVE_PCIE0_IO_SIZE, 346 DOVE_PCIE0_IO_BUS_BASE); 347 mvebu_mbus_add_window_remap_by_id(DOVE_MBUS_PCIE1_IO_TARGET, 348 DOVE_MBUS_PCIE1_IO_ATTR, 349 DOVE_PCIE1_IO_PHYS_BASE, 350 DOVE_PCIE1_IO_SIZE, 351 DOVE_PCIE1_IO_BUS_BASE); 352 mvebu_mbus_add_window_by_id(DOVE_MBUS_PCIE0_MEM_TARGET, 353 DOVE_MBUS_PCIE0_MEM_ATTR, 354 DOVE_PCIE0_MEM_PHYS_BASE, 355 DOVE_PCIE0_MEM_SIZE); 356 mvebu_mbus_add_window_by_id(DOVE_MBUS_PCIE1_MEM_TARGET, 357 DOVE_MBUS_PCIE1_MEM_ATTR, 358 DOVE_PCIE1_MEM_PHYS_BASE, 359 DOVE_PCIE1_MEM_SIZE); 360 mvebu_mbus_add_window_by_id(DOVE_MBUS_CESA_TARGET, 361 DOVE_MBUS_CESA_ATTR, 362 DOVE_CESA_PHYS_BASE, 363 DOVE_CESA_SIZE); 364 mvebu_mbus_add_window_by_id(DOVE_MBUS_BOOTROM_TARGET, 365 DOVE_MBUS_BOOTROM_ATTR, 366 DOVE_BOOTROM_PHYS_BASE, 367 DOVE_BOOTROM_SIZE); 368 mvebu_mbus_add_window_by_id(DOVE_MBUS_SCRATCHPAD_TARGET, 369 DOVE_MBUS_SCRATCHPAD_ATTR, 370 DOVE_SCRATCHPAD_PHYS_BASE, 371 DOVE_SCRATCHPAD_SIZE); 372 } 373 374 static struct resource orion_wdt_resource[] = { 375 DEFINE_RES_MEM(TIMER_PHYS_BASE, 0x04), 376 DEFINE_RES_MEM(RSTOUTn_MASK_PHYS, 0x04), 377 }; 378 379 static struct platform_device orion_wdt_device = { 380 .name = "orion_wdt", 381 .id = -1, 382 .num_resources = ARRAY_SIZE(orion_wdt_resource), 383 .resource = orion_wdt_resource, 384 }; 385 386 static void __init __maybe_unused orion_wdt_init(void) 387 { 388 platform_device_register(&orion_wdt_device); 389 } 390 391 static const struct dove_pmu_domain_initdata pmu_domains[] __initconst = { 392 { 393 .pwr_mask = PMU_PWR_VPU_PWR_DWN_MASK, 394 .rst_mask = PMU_SW_RST_VIDEO_MASK, 395 .iso_mask = PMU_ISO_VIDEO_MASK, 396 .name = "vpu-domain", 397 }, { 398 .pwr_mask = PMU_PWR_GPU_PWR_DWN_MASK, 399 .rst_mask = PMU_SW_RST_GPU_MASK, 400 .iso_mask = PMU_ISO_GPU_MASK, 401 .name = "gpu-domain", 402 }, { 403 /* sentinel */ 404 }, 405 }; 406 407 static const struct dove_pmu_initdata pmu_data __initconst = { 408 .pmc_base = DOVE_PMU_VIRT_BASE, 409 .pmu_base = DOVE_PMU_VIRT_BASE + 0x8000, 410 .irq = IRQ_DOVE_PMU, 411 .irq_domain_start = IRQ_DOVE_PMU_START, 412 .domains = pmu_domains, 413 }; 414 415 void __init dove_init(void) 416 { 417 pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n", 418 (dove_tclk + 499999) / 1000000); 419 420 #ifdef CONFIG_CACHE_TAUROS2 421 tauros2_init(0); 422 #endif 423 dove_setup_cpu_wins(); 424 425 /* Setup root of clk tree */ 426 dove_clk_init(); 427 428 /* internal devices that every board has */ 429 dove_init_pmu_legacy(&pmu_data); 430 dove_rtc_init(); 431 dove_xor0_init(); 432 dove_xor1_init(); 433 } 434 435 void dove_restart(enum reboot_mode mode, const char *cmd) 436 { 437 /* 438 * Enable soft reset to assert RSTOUTn. 439 */ 440 writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK); 441 442 /* 443 * Assert soft reset. 444 */ 445 writel(SOFT_RESET, SYSTEM_SOFT_RESET); 446 447 while (1) 448 ; 449 } 450