1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2012 Thomas Skibo 5 * Copyright (c) 2008 Alexander Motin <mav@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29/* Generic driver to attach sdhci controllers on simplebus. 30 * Derived mainly from sdhci_pci.c 31 */ 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/bus.h> 36#include <sys/kernel.h> 37#include <sys/lock.h> 38#include <sys/module.h> 39#include <sys/mutex.h> 40#include <sys/resource.h> 41#include <sys/rman.h> 42#include <sys/sysctl.h> 43#include <sys/taskqueue.h> 44 45#include <machine/bus.h> 46#include <machine/resource.h> 47 48#include <dev/fdt/fdt_common.h> 49#include <dev/ofw/ofw_bus.h> 50#include <dev/ofw/ofw_bus_subr.h> 51 52#include <dev/ofw/ofw_subr.h> 53#include <dev/clk/clk.h> 54#include <dev/clk/clk_fixed.h> 55#include <dev/syscon/syscon.h> 56#include <dev/phy/phy.h> 57 58#include <dev/mmc/bridge.h> 59 60#include <dev/sdhci/sdhci.h> 61 62#include "mmcbr_if.h" 63#include "sdhci_if.h" 64 65#include "opt_mmccam.h" 66 67#include "clkdev_if.h" 68#include "syscon_if.h" 69 70#define MAX_SLOTS 6 71#define SDHCI_FDT_ARMADA38X 1 72#define SDHCI_FDT_XLNX_ZY7 2 73#define SDHCI_FDT_QUALCOMM 3 74#define SDHCI_FDT_RK3399 4 75#define SDHCI_FDT_RK3568 5 76#define SDHCI_FDT_XLNX_ZMP 6 77 78#define RK3399_GRF_EMMCCORE_CON0 0xf000 79#define RK3399_CORECFG_BASECLKFREQ 0xff00 80#define RK3399_CORECFG_TIMEOUTCLKUNIT (1 << 7) 81#define RK3399_CORECFG_TUNINGCOUNT 0x3f 82#define RK3399_GRF_EMMCCORE_CON11 0xf02c 83#define RK3399_CORECFG_CLOCKMULTIPLIER 0xff 84 85#define RK3568_EMMC_HOST_CTRL 0x0508 86#define RK3568_EMMC_EMMC_CTRL 0x052c 87#define RK3568_EMMC_ATCTRL 0x0540 88#define RK3568_EMMC_DLL_CTRL 0x0800 89#define DLL_CTRL_SRST 0x00000001 90#define DLL_CTRL_START 0x00000002 91#define DLL_CTRL_START_POINT_DEFAULT 0x00050000 92#define DLL_CTRL_INCREMENT_DEFAULT 0x00000200 93 94#define RK3568_EMMC_DLL_RXCLK 0x0804 95#define DLL_RXCLK_DELAY_ENABLE 0x08000000 96#define DLL_RXCLK_NO_INV 0x20000000 97 98#define RK3568_EMMC_DLL_TXCLK 0x0808 99#define DLL_TXCLK_DELAY_ENABLE 0x08000000 100#define DLL_TXCLK_TAPNUM_DEFAULT 0x00000008 101#define DLL_TXCLK_TAPNUM_FROM_SW 0x01000000 102 103#define RK3568_EMMC_DLL_STRBIN 0x080c 104#define DLL_STRBIN_DELAY_ENABLE 0x08000000 105#define DLL_STRBIN_TAPNUM_DEFAULT 0x00000008 106#define DLL_STRBIN_TAPNUM_FROM_SW 0x01000000 107 108#define RK3568_EMMC_DLL_STATUS0 0x0840 109#define DLL_STATUS0_DLL_LOCK 0x00000100 110#define DLL_STATUS0_DLL_TIMEOUT 0x00000200 111 112#define LOWEST_SET_BIT(mask) ((((mask) - 1) & (mask)) ^ (mask)) 113#define SHIFTIN(x, mask) ((x) * LOWEST_SET_BIT(mask)) 114 115static struct ofw_compat_data compat_data[] = { 116 { "marvell,armada-380-sdhci", SDHCI_FDT_ARMADA38X }, 117 { "qcom,sdhci-msm-v4", SDHCI_FDT_QUALCOMM }, 118 { "rockchip,rk3399-sdhci-5.1", SDHCI_FDT_RK3399 }, 119 { "xlnx,zy7_sdhci", SDHCI_FDT_XLNX_ZY7 }, 120 { "rockchip,rk3568-dwcmshc", SDHCI_FDT_RK3568 }, 121 { "xlnx,zynqmp-8.9a", SDHCI_FDT_XLNX_ZMP }, 122 { NULL, 0 } 123}; 124 125struct sdhci_fdt_softc { 126 device_t dev; /* Controller device */ 127 u_int quirks; /* Chip specific quirks */ 128 u_int caps; /* If we override SDHCI_CAPABILITIES */ 129 uint32_t max_clk; /* Max possible freq */ 130 uint8_t sdma_boundary; /* If we override the SDMA boundary */ 131 struct resource *irq_res; /* IRQ resource */ 132 void *intrhand; /* Interrupt handle */ 133 134 int num_slots; /* Number of slots on this controller*/ 135 struct sdhci_slot slots[MAX_SLOTS]; 136 struct resource *mem_res[MAX_SLOTS]; /* Memory resource */ 137 138 bool wp_inverted; /* WP pin is inverted */ 139 bool wp_disabled; /* WP pin is not supported */ 140 bool no_18v; /* No 1.8V support */ 141 142 clk_t clk_xin; /* xin24m fixed clock */ 143 clk_t clk_ahb; /* ahb clock */ 144 clk_t clk_core; /* core clock */ 145 phy_t phy; /* phy to be used */ 146 147 struct syscon *syscon; /* Handle to the syscon */ 148}; 149 150struct sdhci_exported_clocks_sc { 151 device_t clkdev; 152}; 153 154static int 155sdhci_exported_clocks_init(struct clknode *clk, device_t dev) 156{ 157 158 clknode_init_parent_idx(clk, 0); 159 return (0); 160} 161 162static clknode_method_t sdhci_exported_clocks_clknode_methods[] = { 163 /* Device interface */ 164 CLKNODEMETHOD(clknode_init, sdhci_exported_clocks_init), 165 CLKNODEMETHOD_END 166}; 167DEFINE_CLASS_1(sdhci_exported_clocks_clknode, sdhci_exported_clocks_clknode_class, 168 sdhci_exported_clocks_clknode_methods, sizeof(struct sdhci_exported_clocks_sc), 169 clknode_class); 170 171static int 172sdhci_clock_ofw_map(struct clkdom *clkdom, uint32_t ncells, 173 phandle_t *cells, struct clknode **clk) 174{ 175 int id = 1; /* Our clock id starts at 1 */ 176 177 if (ncells != 0) 178 id = cells[1]; 179 *clk = clknode_find_by_id(clkdom, id); 180 181 if (*clk == NULL) 182 return (ENXIO); 183 return (0); 184} 185 186static void 187sdhci_export_clocks(struct sdhci_fdt_softc *sc) 188{ 189 struct clknode_init_def def; 190 struct sdhci_exported_clocks_sc *clksc; 191 struct clkdom *clkdom; 192 struct clknode *clk; 193 bus_addr_t paddr; 194 bus_size_t psize; 195 const char **clknames; 196 phandle_t node; 197 int i, nclocks, ncells, error; 198 199 node = ofw_bus_get_node(sc->dev); 200 201 if (ofw_reg_to_paddr(node, 0, &paddr, &psize, NULL) != 0) { 202 device_printf(sc->dev, "cannot parse 'reg' property\n"); 203 return; 204 } 205 206 error = ofw_bus_parse_xref_list_get_length(node, "clocks", 207 "#clock-cells", &ncells); 208 if (error != 0 || ncells != 2) { 209 device_printf(sc->dev, "couldn't find parent clocks\n"); 210 return; 211 } 212 213 nclocks = ofw_bus_string_list_to_array(node, "clock-output-names", 214 &clknames); 215 /* No clocks to export */ 216 if (nclocks <= 0) 217 return; 218 219 clkdom = clkdom_create(sc->dev); 220 clkdom_set_ofw_mapper(clkdom, sdhci_clock_ofw_map); 221 222 for (i = 0; i < nclocks; i++) { 223 memset(&def, 0, sizeof(def)); 224 def.id = i + 1; /* Exported clock IDs starts at 1 */ 225 def.name = clknames[i]; 226 def.parent_names = malloc(sizeof(char *) * 1, M_OFWPROP, M_WAITOK); 227 def.parent_names[0] = clk_get_name(sc->clk_xin); 228 def.parent_cnt = 1; 229 230 clk = clknode_create(clkdom, &sdhci_exported_clocks_clknode_class, &def); 231 if (clk == NULL) { 232 device_printf(sc->dev, "cannot create clknode\n"); 233 return; 234 } 235 236 clksc = clknode_get_softc(clk); 237 clksc->clkdev = device_get_parent(sc->dev); 238 239 clknode_register(clkdom, clk); 240 } 241 242 if (clkdom_finit(clkdom) != 0) { 243 device_printf(sc->dev, "cannot finalize clkdom initialization\n"); 244 return; 245 } 246 247 if (bootverbose) 248 clkdom_dump(clkdom); 249} 250 251static int 252sdhci_init_clocks(device_t dev) 253{ 254 struct sdhci_fdt_softc *sc = device_get_softc(dev); 255 int error; 256 257 /* Get and activate clocks */ 258 error = clk_get_by_ofw_name(dev, 0, "clk_xin", &sc->clk_xin); 259 if (error != 0) { 260 device_printf(dev, "cannot get xin clock\n"); 261 return (ENXIO); 262 } 263 error = clk_enable(sc->clk_xin); 264 if (error != 0) { 265 device_printf(dev, "cannot enable xin clock\n"); 266 return (ENXIO); 267 } 268 error = clk_get_by_ofw_name(dev, 0, "clk_ahb", &sc->clk_ahb); 269 if (error != 0) { 270 device_printf(dev, "cannot get ahb clock\n"); 271 return (ENXIO); 272 } 273 error = clk_enable(sc->clk_ahb); 274 if (error != 0) { 275 device_printf(dev, "cannot enable ahb clock\n"); 276 return (ENXIO); 277 } 278 279 return (0); 280} 281 282static int 283sdhci_init_phy(struct sdhci_fdt_softc *sc) 284{ 285 int error; 286 287 /* Enable PHY */ 288 error = phy_get_by_ofw_name(sc->dev, 0, "phy_arasan", &sc->phy); 289 if (error == ENOENT) 290 return (0); 291 if (error != 0) { 292 device_printf(sc->dev, "Could not get phy\n"); 293 return (ENXIO); 294 } 295 error = phy_enable(sc->phy); 296 if (error != 0) { 297 device_printf(sc->dev, "Could not enable phy\n"); 298 return (ENXIO); 299 } 300 301 return (0); 302} 303 304static int 305sdhci_get_syscon(struct sdhci_fdt_softc *sc) 306{ 307 phandle_t node; 308 309 /* Get syscon */ 310 node = ofw_bus_get_node(sc->dev); 311 if (OF_hasprop(node, "arasan,soc-ctl-syscon") && 312 syscon_get_by_ofw_property(sc->dev, node, 313 "arasan,soc-ctl-syscon", &sc->syscon) != 0) { 314 device_printf(sc->dev, "cannot get syscon handle\n"); 315 return (ENXIO); 316 } 317 318 return (0); 319} 320 321static int 322sdhci_init_rk3399(device_t dev) 323{ 324 struct sdhci_fdt_softc *sc = device_get_softc(dev); 325 uint64_t freq; 326 uint32_t mask, val; 327 int error; 328 329 error = clk_get_freq(sc->clk_xin, &freq); 330 if (error != 0) { 331 device_printf(dev, "cannot get xin clock frequency\n"); 332 return (ENXIO); 333 } 334 335 /* Disable clock multiplier */ 336 mask = RK3399_CORECFG_CLOCKMULTIPLIER; 337 val = 0; 338 SYSCON_WRITE_4(sc->syscon, RK3399_GRF_EMMCCORE_CON11, (mask << 16) | val); 339 340 /* Set base clock frequency */ 341 mask = RK3399_CORECFG_BASECLKFREQ; 342 val = SHIFTIN((freq + (1000000 / 2)) / 1000000, 343 RK3399_CORECFG_BASECLKFREQ); 344 SYSCON_WRITE_4(sc->syscon, RK3399_GRF_EMMCCORE_CON0, (mask << 16) | val); 345 346 return (0); 347} 348 349static uint8_t 350sdhci_fdt_read_1(device_t dev, struct sdhci_slot *slot, bus_size_t off) 351{ 352 struct sdhci_fdt_softc *sc = device_get_softc(dev); 353 354 return (bus_read_1(sc->mem_res[slot->num], off)); 355} 356 357static void 358sdhci_fdt_write_1(device_t dev, struct sdhci_slot *slot, bus_size_t off, 359 uint8_t val) 360{ 361 struct sdhci_fdt_softc *sc = device_get_softc(dev); 362 363 bus_write_1(sc->mem_res[slot->num], off, val); 364} 365 366static uint16_t 367sdhci_fdt_read_2(device_t dev, struct sdhci_slot *slot, bus_size_t off) 368{ 369 struct sdhci_fdt_softc *sc = device_get_softc(dev); 370 371 return (bus_read_2(sc->mem_res[slot->num], off)); 372} 373 374static void 375sdhci_fdt_write_2(device_t dev, struct sdhci_slot *slot, bus_size_t off, 376 uint16_t val) 377{ 378 struct sdhci_fdt_softc *sc = device_get_softc(dev); 379 380 bus_write_2(sc->mem_res[slot->num], off, val); 381} 382 383static uint32_t 384sdhci_fdt_read_4(device_t dev, struct sdhci_slot *slot, bus_size_t off) 385{ 386 struct sdhci_fdt_softc *sc = device_get_softc(dev); 387 uint32_t val32; 388 389 val32 = bus_read_4(sc->mem_res[slot->num], off); 390 if (off == SDHCI_CAPABILITIES && sc->no_18v) 391 val32 &= ~SDHCI_CAN_VDD_180; 392 393 return (val32); 394} 395 396static void 397sdhci_fdt_write_4(device_t dev, struct sdhci_slot *slot, bus_size_t off, 398 uint32_t val) 399{ 400 struct sdhci_fdt_softc *sc = device_get_softc(dev); 401 402 bus_write_4(sc->mem_res[slot->num], off, val); 403} 404 405static void 406sdhci_fdt_read_multi_4(device_t dev, struct sdhci_slot *slot, 407 bus_size_t off, uint32_t *data, bus_size_t count) 408{ 409 struct sdhci_fdt_softc *sc = device_get_softc(dev); 410 411 bus_read_multi_4(sc->mem_res[slot->num], off, data, count); 412} 413 414static void 415sdhci_fdt_write_multi_4(device_t dev, struct sdhci_slot *slot, 416 bus_size_t off, uint32_t *data, bus_size_t count) 417{ 418 struct sdhci_fdt_softc *sc = device_get_softc(dev); 419 420 bus_write_multi_4(sc->mem_res[slot->num], off, data, count); 421} 422 423static void 424sdhci_fdt_intr(void *arg) 425{ 426 struct sdhci_fdt_softc *sc = (struct sdhci_fdt_softc *)arg; 427 int i; 428 429 for (i = 0; i < sc->num_slots; i++) 430 sdhci_generic_intr(&sc->slots[i]); 431} 432 433static int 434sdhci_fdt_get_ro(device_t bus, device_t dev) 435{ 436 struct sdhci_fdt_softc *sc = device_get_softc(bus); 437 438 if (sc->wp_disabled) 439 return (false); 440 return (sdhci_generic_get_ro(bus, dev) ^ sc->wp_inverted); 441} 442 443static int 444sdhci_fdt_set_clock(device_t dev, struct sdhci_slot *slot, int clock) 445{ 446 struct sdhci_fdt_softc *sc = device_get_softc(dev); 447 int32_t val; 448 int i; 449 450 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 451 SDHCI_FDT_RK3568) { 452 if (clock == 400000) 453 clock = 375000; 454 455 if (clock) { 456 clk_set_freq(sc->clk_core, clock, 0); 457 458 if (clock <= 52000000) { 459 bus_write_4(sc->mem_res[slot->num], 460 RK3568_EMMC_DLL_CTRL, 0x0); 461 bus_write_4(sc->mem_res[slot->num], 462 RK3568_EMMC_DLL_RXCLK, DLL_RXCLK_NO_INV); 463 bus_write_4(sc->mem_res[slot->num], 464 RK3568_EMMC_DLL_TXCLK, 0x0); 465 bus_write_4(sc->mem_res[slot->num], 466 RK3568_EMMC_DLL_STRBIN, 0x0); 467 return (clock); 468 } 469 470 bus_write_4(sc->mem_res[slot->num], 471 RK3568_EMMC_DLL_CTRL, DLL_CTRL_START); 472 DELAY(1000); 473 bus_write_4(sc->mem_res[slot->num], 474 RK3568_EMMC_DLL_CTRL, 0); 475 bus_write_4(sc->mem_res[slot->num], 476 RK3568_EMMC_DLL_CTRL, DLL_CTRL_START_POINT_DEFAULT | 477 DLL_CTRL_INCREMENT_DEFAULT | DLL_CTRL_START); 478 for (i = 0; i < 500; i++) { 479 val = bus_read_4(sc->mem_res[slot->num], 480 RK3568_EMMC_DLL_STATUS0); 481 if (val & DLL_STATUS0_DLL_LOCK && 482 !(val & DLL_STATUS0_DLL_TIMEOUT)) 483 break; 484 DELAY(1000); 485 } 486 bus_write_4(sc->mem_res[slot->num], RK3568_EMMC_ATCTRL, 487 (0x1 << 16 | 0x2 << 17 | 0x3 << 19)); 488 bus_write_4(sc->mem_res[slot->num], 489 RK3568_EMMC_DLL_RXCLK, 490 DLL_RXCLK_DELAY_ENABLE | DLL_RXCLK_NO_INV); 491 bus_write_4(sc->mem_res[slot->num], 492 RK3568_EMMC_DLL_TXCLK, DLL_TXCLK_DELAY_ENABLE | 493 DLL_TXCLK_TAPNUM_DEFAULT|DLL_TXCLK_TAPNUM_FROM_SW); 494 bus_write_4(sc->mem_res[slot->num], 495 RK3568_EMMC_DLL_STRBIN, DLL_STRBIN_DELAY_ENABLE | 496 DLL_STRBIN_TAPNUM_DEFAULT | 497 DLL_STRBIN_TAPNUM_FROM_SW); 498 } 499 } 500 return (clock); 501} 502 503static int 504sdhci_fdt_probe(device_t dev) 505{ 506 struct sdhci_fdt_softc *sc = device_get_softc(dev); 507 phandle_t node; 508 pcell_t cid; 509 510 sc->quirks = 0; 511 sc->num_slots = 1; 512 sc->max_clk = 0; 513 514 if (!ofw_bus_status_okay(dev)) 515 return (ENXIO); 516 517 switch (ofw_bus_search_compatible(dev, compat_data)->ocd_data) { 518 case SDHCI_FDT_ARMADA38X: 519 sc->quirks = SDHCI_QUIRK_BROKEN_AUTO_STOP; 520 device_set_desc(dev, "ARMADA38X SDHCI controller"); 521 break; 522 case SDHCI_FDT_QUALCOMM: 523 sc->quirks = SDHCI_QUIRK_ALL_SLOTS_NON_REMOVABLE | 524 SDHCI_QUIRK_BROKEN_SDMA_BOUNDARY; 525 sc->sdma_boundary = SDHCI_BLKSZ_SDMA_BNDRY_4K; 526 device_set_desc(dev, "Qualcomm FDT SDHCI controller"); 527 break; 528 case SDHCI_FDT_RK3399: 529 device_set_desc(dev, "Rockchip RK3399 fdt SDHCI controller"); 530 break; 531 case SDHCI_FDT_XLNX_ZY7: 532 sc->quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK; 533 device_set_desc(dev, "Zynq-7000 generic fdt SDHCI controller"); 534 break; 535 case SDHCI_FDT_RK3568: 536 device_set_desc(dev, "Rockchip RK3568 fdt SDHCI controller"); 537 break; 538 case SDHCI_FDT_XLNX_ZMP: 539 device_set_desc(dev, "ZynqMP generic fdt SDHCI controller"); 540 break; 541 default: 542 return (ENXIO); 543 } 544 545 node = ofw_bus_get_node(dev); 546 547 /* Allow dts to patch quirks, slots, and max-frequency. */ 548 if ((OF_getencprop(node, "quirks", &cid, sizeof(cid))) > 0) 549 sc->quirks = cid; 550 if ((OF_getencprop(node, "num-slots", &cid, sizeof(cid))) > 0) 551 sc->num_slots = cid; 552 if ((OF_getencprop(node, "max-frequency", &cid, sizeof(cid))) > 0) 553 sc->max_clk = cid; 554 if (OF_hasprop(node, "no-1-8-v")) 555 sc->no_18v = true; 556 if (OF_hasprop(node, "wp-inverted")) 557 sc->wp_inverted = true; 558 if (OF_hasprop(node, "disable-wp")) 559 sc->wp_disabled = true; 560 561 return (0); 562} 563 564static int 565sdhci_fdt_attach(device_t dev) 566{ 567 struct sdhci_fdt_softc *sc = device_get_softc(dev); 568 struct sdhci_slot *slot; 569 int err, slots, rid, i, compat; 570 571 sc->dev = dev; 572 573 /* Allocate IRQ. */ 574 rid = 0; 575 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 576 RF_ACTIVE); 577 if (sc->irq_res == NULL) { 578 device_printf(dev, "Can't allocate IRQ\n"); 579 return (ENOMEM); 580 } 581 582 compat = ofw_bus_search_compatible(dev, compat_data)->ocd_data; 583 switch (compat) { 584 case SDHCI_FDT_RK3399: 585 case SDHCI_FDT_XLNX_ZMP: 586 err = sdhci_init_clocks(dev); 587 if (err != 0) { 588 device_printf(dev, "Cannot init clocks\n"); 589 return (err); 590 } 591 sdhci_export_clocks(sc); 592 if ((err = sdhci_init_phy(sc)) != 0) { 593 device_printf(dev, "Cannot init phy\n"); 594 return (err); 595 } 596 if ((err = sdhci_get_syscon(sc)) != 0) { 597 device_printf(dev, "Cannot get syscon handle\n"); 598 return (err); 599 } 600 if (compat == SDHCI_FDT_RK3399) { 601 err = sdhci_init_rk3399(dev); 602 if (err != 0) { 603 device_printf(dev, "Cannot init RK3399 SDHCI\n"); 604 return (err); 605 } 606 } 607 break; 608 case SDHCI_FDT_RK3568: 609 /* setup & enable clocks */ 610 if (clk_get_by_ofw_name(dev, 0, "core", &sc->clk_core)) { 611 device_printf(dev, "cannot get core clock\n"); 612 return (ENXIO); 613 } 614 clk_enable(sc->clk_core); 615 break; 616 default: 617 break; 618 } 619 620 /* Scan all slots. */ 621 slots = sc->num_slots; /* number of slots determined in probe(). */ 622 sc->num_slots = 0; 623 for (i = 0; i < slots; i++) { 624 slot = &sc->slots[sc->num_slots]; 625 626 /* Allocate memory. */ 627 rid = 0; 628 sc->mem_res[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 629 &rid, RF_ACTIVE); 630 if (sc->mem_res[i] == NULL) { 631 device_printf(dev, 632 "Can't allocate memory for slot %d\n", i); 633 continue; 634 } 635 636 slot->quirks = sc->quirks; 637 slot->caps = sc->caps; 638 slot->max_clk = sc->max_clk; 639 slot->sdma_boundary = sc->sdma_boundary; 640 641 if (sdhci_init_slot(dev, slot, i) != 0) 642 continue; 643 644 sc->num_slots++; 645 } 646 device_printf(dev, "%d slot(s) allocated\n", sc->num_slots); 647 648 /* Activate the interrupt */ 649 err = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_MISC | INTR_MPSAFE, 650 NULL, sdhci_fdt_intr, sc, &sc->intrhand); 651 if (err) { 652 device_printf(dev, "Cannot setup IRQ\n"); 653 return (err); 654 } 655 656 /* Process cards detection. */ 657 for (i = 0; i < sc->num_slots; i++) 658 sdhci_start_slot(&sc->slots[i]); 659 660 return (0); 661} 662 663static int 664sdhci_fdt_detach(device_t dev) 665{ 666 struct sdhci_fdt_softc *sc = device_get_softc(dev); 667 int i; 668 669 bus_generic_detach(dev); 670 bus_teardown_intr(dev, sc->irq_res, sc->intrhand); 671 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq_res), 672 sc->irq_res); 673 674 for (i = 0; i < sc->num_slots; i++) { 675 sdhci_cleanup_slot(&sc->slots[i]); 676 bus_release_resource(dev, SYS_RES_MEMORY, 677 rman_get_rid(sc->mem_res[i]), sc->mem_res[i]); 678 } 679 680 return (0); 681} 682 683static device_method_t sdhci_fdt_methods[] = { 684 /* device_if */ 685 DEVMETHOD(device_probe, sdhci_fdt_probe), 686 DEVMETHOD(device_attach, sdhci_fdt_attach), 687 DEVMETHOD(device_detach, sdhci_fdt_detach), 688 689 /* Bus interface */ 690 DEVMETHOD(bus_read_ivar, sdhci_generic_read_ivar), 691 DEVMETHOD(bus_write_ivar, sdhci_generic_write_ivar), 692 693 /* mmcbr_if */ 694 DEVMETHOD(mmcbr_update_ios, sdhci_generic_update_ios), 695 DEVMETHOD(mmcbr_request, sdhci_generic_request), 696 DEVMETHOD(mmcbr_get_ro, sdhci_fdt_get_ro), 697 DEVMETHOD(mmcbr_acquire_host, sdhci_generic_acquire_host), 698 DEVMETHOD(mmcbr_release_host, sdhci_generic_release_host), 699 700 /* SDHCI registers accessors */ 701 DEVMETHOD(sdhci_read_1, sdhci_fdt_read_1), 702 DEVMETHOD(sdhci_read_2, sdhci_fdt_read_2), 703 DEVMETHOD(sdhci_read_4, sdhci_fdt_read_4), 704 DEVMETHOD(sdhci_read_multi_4, sdhci_fdt_read_multi_4), 705 DEVMETHOD(sdhci_write_1, sdhci_fdt_write_1), 706 DEVMETHOD(sdhci_write_2, sdhci_fdt_write_2), 707 DEVMETHOD(sdhci_write_4, sdhci_fdt_write_4), 708 DEVMETHOD(sdhci_write_multi_4, sdhci_fdt_write_multi_4), 709 DEVMETHOD(sdhci_set_clock, sdhci_fdt_set_clock), 710 711 DEVMETHOD_END 712}; 713 714static driver_t sdhci_fdt_driver = { 715 "sdhci_fdt", 716 sdhci_fdt_methods, 717 sizeof(struct sdhci_fdt_softc), 718}; 719 720DRIVER_MODULE(sdhci_fdt, simplebus, sdhci_fdt_driver, NULL, NULL); 721SDHCI_DEPEND(sdhci_fdt); 722#ifndef MMCCAM 723MMC_DECLARE_BRIDGE(sdhci_fdt); 724#endif 725