octeon_ebt3000_cf.c revision 210311
1203130Simp/***********************license start*************** 2203130Simp * Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights 3203130Simp * reserved. 4203130Simp * 5203130Simp * 6203130Simp * Redistribution and use in source and binary forms, with or without 7203130Simp * modification, are permitted provided that the following conditions are 8203130Simp * met: 9203130Simp * 10203130Simp * * Redistributions of source code must retain the above copyright 11203130Simp * notice, this list of conditions and the following disclaimer. 12203130Simp * 13203130Simp * * Redistributions in binary form must reproduce the above 14203130Simp * copyright notice, this list of conditions and the following 15203130Simp * disclaimer in the documentation and/or other materials provided 16203130Simp * with the distribution. 17203130Simp * 18203130Simp * * Neither the name of Cavium Networks nor the names of 19203130Simp * its contributors may be used to endorse or promote products 20203130Simp * derived from this software without specific prior written 21203130Simp * permission. 22203130Simp * 23203130Simp * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 24203130Simp * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS 25203130Simp * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH 26203130Simp * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY 27203130Simp * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT 28203130Simp * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES 29203130Simp * OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR 30203130Simp * PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET 31203130Simp * POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT 32203130Simp * OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 33203130Simp * 34203130Simp * 35203130Simp * For any questions regarding licensing please contact marketing@caviumnetworks.com 36203130Simp * 37203130Simp ***********************license end**************************************/ 38203130Simp 39194149Simp/* 40194149Simp * octeon_ebt3000_cf.c 41194149Simp * 42194149Simp */ 43194149Simp 44194149Simp#include <sys/cdefs.h> 45194149Simp__FBSDID("$FreeBSD: head/sys/mips/cavium/octeon_ebt3000_cf.c 210311 2010-07-20 19:25:11Z jmallett $"); 46194149Simp 47194149Simp#include <sys/param.h> 48194149Simp#include <sys/bio.h> 49194149Simp#include <sys/systm.h> 50194149Simp#include <sys/sysctl.h> 51210311Sjmallett#include <sys/ata.h> 52194149Simp#include <sys/bus.h> 53194149Simp#include <sys/kernel.h> 54194149Simp#include <sys/module.h> 55194149Simp#include <sys/rman.h> 56194149Simp#include <sys/power.h> 57194149Simp#include <sys/smp.h> 58194149Simp#include <sys/time.h> 59194149Simp#include <sys/timetc.h> 60194149Simp#include <sys/malloc.h> 61194149Simp 62194149Simp#include <geom/geom.h> 63194149Simp 64194149Simp#include <machine/clock.h> 65194149Simp#include <machine/locore.h> 66194149Simp#include <machine/md_var.h> 67194149Simp#include <machine/cpuregs.h> 68194149Simp 69202063Simp#include <mips/cavium/octeon_pcmap_regs.h> 70194149Simp 71210311Sjmallett#include <contrib/octeon-sdk/cvmx.h> 72210311Sjmallett 73194149Simp/* ATA Commands */ 74194149Simp#define CMD_READ_SECTOR 0x20 75194149Simp#define CMD_WRITE_SECTOR 0x30 76194149Simp#define CMD_IDENTIFY 0xEC 77194149Simp 78194149Simp/* The ATA Task File */ 79194149Simp#define TF_DATA 0x00 80194149Simp#define TF_ERROR 0x01 81194149Simp#define TF_PRECOMP 0x01 82194149Simp#define TF_SECTOR_COUNT 0x02 83194149Simp#define TF_SECTOR_NUMBER 0x03 84194149Simp#define TF_CYL_LSB 0x04 85194149Simp#define TF_CYL_MSB 0x05 86194149Simp#define TF_DRV_HEAD 0x06 87194149Simp#define TF_STATUS 0x07 88194149Simp#define TF_COMMAND 0x07 89194149Simp 90194149Simp/* Status Register */ 91194149Simp#define STATUS_BSY 0x80 /* Drive is busy */ 92194149Simp#define STATUS_RDY 0x40 /* Drive is ready */ 93204789Sjmallett#define STATUS_DF 0x20 /* Device fault */ 94194149Simp#define STATUS_DRQ 0x08 /* Data can be transferred */ 95194149Simp 96194149Simp/* Miscelaneous */ 97194149Simp#define SECTOR_SIZE 512 98194149Simp#define WAIT_DELAY 1000 99194149Simp#define NR_TRIES 1000 100194149Simp#define SWAP_SHORT(x) ((x << 8) | (x >> 8)) 101194149Simp#define MODEL_STR_SIZE 40 102194149Simp 103210311Sjmallett/* XXX */ 104210311Sjmallettextern cvmx_bootinfo_t *octeon_bootinfo; 105194149Simp 106194149Simp/* Globals */ 107194149Simpint bus_width; 108194149Simpvoid *base_addr; 109194149Simp 110194149Simp/* Device softc */ 111194149Simpstruct cf_priv { 112194149Simp 113194149Simp device_t dev; 114194149Simp struct drive_param *drive_param; 115194149Simp 116194149Simp struct bio_queue_head cf_bq; 117194149Simp struct g_geom *cf_geom; 118194149Simp struct g_provider *cf_provider; 119194149Simp 120194149Simp}; 121194149Simp 122194149Simp/* Device parameters */ 123194149Simpstruct drive_param{ 124194149Simp union { 125194149Simp char buf[SECTOR_SIZE]; 126210311Sjmallett struct ata_params driveid; 127194149Simp } u; 128194149Simp 129194149Simp char model[MODEL_STR_SIZE]; 130194149Simp uint32_t nr_sectors; 131194149Simp uint16_t sector_size; 132194149Simp uint16_t heads; 133194149Simp uint16_t tracks; 134194149Simp uint16_t sec_track; 135194149Simp 136194149Simp} drive_param; 137194149Simp 138194149Simp/* GEOM class implementation */ 139194149Simpstatic g_access_t cf_access; 140194149Simpstatic g_start_t cf_start; 141194149Simpstatic g_ioctl_t cf_ioctl; 142194149Simp 143194149Simpstruct g_class g_cf_class = { 144194149Simp .name = "CF", 145194149Simp .version = G_VERSION, 146194149Simp .start = cf_start, 147194149Simp .access = cf_access, 148194149Simp .ioctl = cf_ioctl, 149194149Simp}; 150194149Simp 151194149Simp/* Device methods */ 152194149Simpstatic int cf_probe(device_t); 153194149Simpstatic void cf_identify(driver_t *, device_t); 154194149Simpstatic int cf_attach(device_t); 155194149Simpstatic int cf_attach_geom(void *, int); 156194149Simp 157194149Simp/* ATA methods */ 158204789Sjmallettstatic int cf_cmd_identify(void); 159204789Sjmallettstatic int cf_cmd_write(uint32_t, uint32_t, void *); 160204789Sjmallettstatic int cf_cmd_read(uint32_t, uint32_t, void *); 161204789Sjmallettstatic int cf_wait_busy(void); 162204789Sjmallettstatic int cf_send_cmd(uint32_t, uint8_t); 163194149Simpstatic void cf_attach_geom_proxy(void *arg, int flag); 164194149Simp 165194149Simp/* Miscelenous */ 166194149Simpstatic void cf_swap_ascii(unsigned char[], char[]); 167194149Simp 168194149Simp 169194149Simp/* ------------------------------------------------------------------- * 170194149Simp * cf_access() * 171194149Simp * ------------------------------------------------------------------- */ 172194149Simpstatic int cf_access (struct g_provider *pp, int r, int w, int e) 173194149Simp{ 174194149Simp 175194149Simp pp->sectorsize = drive_param.sector_size; 176194149Simp pp->stripesize = drive_param.heads * drive_param.sec_track * drive_param.sector_size; 177194149Simp pp->mediasize = pp->stripesize * drive_param.tracks; 178194149Simp 179194149Simp return (0); 180194149Simp} 181194149Simp 182194149Simp 183194149Simp/* ------------------------------------------------------------------- * 184194149Simp * cf_start() * 185194149Simp * ------------------------------------------------------------------- */ 186194149Simpstatic void cf_start (struct bio *bp) 187194149Simp{ 188204789Sjmallett int error; 189204789Sjmallett 190194149Simp /* 191194149Simp * Handle actual I/O requests. The request is passed down through 192194149Simp * the bio struct. 193194149Simp */ 194194149Simp 195194149Simp if(bp->bio_cmd & BIO_GETATTR) { 196194149Simp if (g_handleattr_int(bp, "GEOM::fwsectors", drive_param.sec_track)) 197194149Simp return; 198194149Simp if (g_handleattr_int(bp, "GEOM::fwheads", drive_param.heads)) 199194149Simp return; 200194149Simp g_io_deliver(bp, ENOIOCTL); 201194149Simp return; 202194149Simp } 203194149Simp 204194149Simp if ((bp->bio_cmd & (BIO_READ | BIO_WRITE))) { 205194149Simp 206194149Simp if (bp->bio_cmd & BIO_READ) { 207204789Sjmallett error = cf_cmd_read(bp->bio_length / drive_param.sector_size, 208204789Sjmallett bp->bio_offset / drive_param.sector_size, bp->bio_data); 209194149Simp } else if (bp->bio_cmd & BIO_WRITE) { 210204789Sjmallett error = cf_cmd_write(bp->bio_length / drive_param.sector_size, 211204789Sjmallett bp->bio_offset/drive_param.sector_size, bp->bio_data); 212204789Sjmallett } else { 213204789Sjmallett printf("%s: unrecognized bio_cmd %x.\n", __func__, bp->bio_cmd); 214204789Sjmallett error = ENOTSUP; 215194149Simp } 216194149Simp 217204789Sjmallett if (error != 0) { 218204789Sjmallett g_io_deliver(bp, error); 219204789Sjmallett return; 220204789Sjmallett } 221204789Sjmallett 222194149Simp bp->bio_resid = 0; 223194149Simp bp->bio_completed = bp->bio_length; 224194149Simp g_io_deliver(bp, 0); 225194149Simp } 226194149Simp} 227194149Simp 228194149Simp 229194149Simpstatic int cf_ioctl (struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td) 230194149Simp{ 231194149Simp return (0); 232194149Simp} 233194149Simp 234194149Simp 235194149Simp/* ------------------------------------------------------------------- * 236194149Simp * cf_cmd_read() * 237194149Simp * ------------------------------------------------------------------- * 238194149Simp * 239194149Simp * Read nr_sectors from the device starting from start_sector. 240194149Simp */ 241204789Sjmallettstatic int cf_cmd_read (uint32_t nr_sectors, uint32_t start_sector, void *buf) 242194149Simp{ 243194149Simp unsigned long lba; 244194149Simp uint32_t count; 245194149Simp uint16_t *ptr_16; 246194149Simp uint8_t *ptr_8; 247204789Sjmallett int error; 248194149Simp 249194149Simp//#define OCTEON_VISUAL_CF_0 1 250194149Simp#ifdef OCTEON_VISUAL_CF_0 251194149Simp octeon_led_write_char(0, 'R'); 252194149Simp#endif 253194149Simp ptr_8 = (uint8_t*)buf; 254194149Simp ptr_16 = (uint16_t*)buf; 255194149Simp lba = start_sector; 256194149Simp 257194149Simp 258194149Simp while (nr_sectors--) { 259204789Sjmallett error = cf_send_cmd(lba, CMD_READ_SECTOR); 260204789Sjmallett if (error != 0) { 261204789Sjmallett printf("%s: cf_send_cmd(CMD_READ_SECTOR) failed: %d\n", __func__, error); 262204789Sjmallett return (error); 263204789Sjmallett } 264194149Simp 265194149Simp if (bus_width == 8) { 266194149Simp volatile uint8_t *task_file = (volatile uint8_t*)base_addr; 267194149Simp volatile uint8_t dummy; 268194149Simp for (count = 0; count < SECTOR_SIZE; count++) { 269194149Simp *ptr_8++ = task_file[TF_DATA]; 270194149Simp if ((count & 0xf) == 0) dummy = task_file[TF_STATUS]; 271194149Simp } 272194149Simp } else { 273194149Simp volatile uint16_t *task_file = (volatile uint16_t*)base_addr; 274194149Simp volatile uint16_t dummy; 275194149Simp for (count = 0; count < SECTOR_SIZE; count+=2) { 276194149Simp uint16_t temp; 277194149Simp temp = task_file[TF_DATA]; 278194149Simp *ptr_16++ = SWAP_SHORT(temp); 279194149Simp if ((count & 0xf) == 0) dummy = task_file[TF_STATUS/2]; 280194149Simp } 281194149Simp } 282194149Simp 283194149Simp lba ++; 284194149Simp } 285194149Simp#ifdef OCTEON_VISUAL_CF_0 286194149Simp octeon_led_write_char(0, ' '); 287194149Simp#endif 288204789Sjmallett return (0); 289194149Simp} 290194149Simp 291194149Simp 292194149Simp/* ------------------------------------------------------------------- * 293194149Simp * cf_cmd_write() * 294194149Simp * ------------------------------------------------------------------- * 295194149Simp * 296194149Simp * Write nr_sectors to the device starting from start_sector. 297194149Simp */ 298204789Sjmallettstatic int cf_cmd_write (uint32_t nr_sectors, uint32_t start_sector, void *buf) 299194149Simp{ 300194149Simp uint32_t lba; 301194149Simp uint32_t count; 302194149Simp uint16_t *ptr_16; 303194149Simp uint8_t *ptr_8; 304204789Sjmallett int error; 305194149Simp 306194149Simp//#define OCTEON_VISUAL_CF_1 1 307194149Simp#ifdef OCTEON_VISUAL_CF_1 308194149Simp octeon_led_write_char(1, 'W'); 309194149Simp#endif 310194149Simp lba = start_sector; 311194149Simp ptr_8 = (uint8_t*)buf; 312194149Simp ptr_16 = (uint16_t*)buf; 313194149Simp 314194149Simp while (nr_sectors--) { 315204789Sjmallett error = cf_send_cmd(lba, CMD_WRITE_SECTOR); 316204789Sjmallett if (error != 0) { 317204789Sjmallett printf("%s: cf_send_cmd(CMD_WRITE_SECTOR) failed: %d\n", __func__, error); 318204789Sjmallett return (error); 319204789Sjmallett } 320194149Simp 321194149Simp if (bus_width == 8) { 322194149Simp volatile uint8_t *task_file; 323194149Simp volatile uint8_t dummy; 324194149Simp 325194149Simp task_file = (volatile uint8_t *) base_addr; 326194149Simp for (count = 0; count < SECTOR_SIZE; count++) { 327194149Simp task_file[TF_DATA] = *ptr_8++; 328194149Simp if ((count & 0xf) == 0) dummy = task_file[TF_STATUS]; 329194149Simp } 330194149Simp } else { 331194149Simp volatile uint16_t *task_file; 332194149Simp volatile uint16_t dummy; 333194149Simp 334194149Simp task_file = (volatile uint16_t *) base_addr; 335194149Simp for (count = 0; count < SECTOR_SIZE; count+=2) { 336194149Simp uint16_t temp = *ptr_16++; 337194149Simp task_file[TF_DATA] = SWAP_SHORT(temp); 338194149Simp if ((count & 0xf) == 0) dummy = task_file[TF_STATUS/2]; 339194149Simp } 340194149Simp } 341194149Simp 342194149Simp lba ++; 343194149Simp } 344194149Simp#ifdef OCTEON_VISUAL_CF_1 345194149Simp octeon_led_write_char(1, ' '); 346194149Simp#endif 347204789Sjmallett return (0); 348194149Simp} 349194149Simp 350194149Simp 351194149Simp/* ------------------------------------------------------------------- * 352194149Simp * cf_cmd_identify() * 353194149Simp * ------------------------------------------------------------------- * 354194149Simp * 355194149Simp * Read parameters and other information from the drive and store 356194149Simp * it in the drive_param structure 357194149Simp * 358194149Simp */ 359204789Sjmallettstatic int cf_cmd_identify (void) 360194149Simp{ 361194149Simp int count; 362194149Simp uint8_t status; 363204789Sjmallett int error; 364194149Simp 365194149Simp if (bus_width == 8) { 366194149Simp volatile uint8_t *task_file; 367194149Simp 368194149Simp task_file = (volatile uint8_t *) base_addr; 369194149Simp 370194149Simp while ((status = task_file[TF_STATUS]) & STATUS_BSY) { 371194149Simp DELAY(WAIT_DELAY); 372194149Simp } 373194149Simp 374194149Simp task_file[TF_SECTOR_COUNT] = 0; 375194149Simp task_file[TF_SECTOR_NUMBER] = 0; 376194149Simp task_file[TF_CYL_LSB] = 0; 377194149Simp task_file[TF_CYL_MSB] = 0; 378194149Simp task_file[TF_DRV_HEAD] = 0; 379194149Simp task_file[TF_COMMAND] = CMD_IDENTIFY; 380194149Simp 381204789Sjmallett error = cf_wait_busy(); 382204789Sjmallett if (error == 0) { 383204789Sjmallett for (count = 0; count < SECTOR_SIZE; count++) 384204789Sjmallett drive_param.u.buf[count] = task_file[TF_DATA]; 385204789Sjmallett } 386194149Simp } else { 387194149Simp volatile uint16_t *task_file; 388194149Simp 389194149Simp task_file = (volatile uint16_t *) base_addr; 390194149Simp 391194149Simp while ((status = (task_file[TF_STATUS/2]>>8)) & STATUS_BSY) { 392194149Simp DELAY(WAIT_DELAY); 393194149Simp } 394194149Simp 395194149Simp task_file[TF_SECTOR_COUNT/2] = 0; /* this includes TF_SECTOR_NUMBER */ 396194149Simp task_file[TF_CYL_LSB/2] = 0; /* this includes TF_CYL_MSB */ 397194149Simp task_file[TF_DRV_HEAD/2] = 0 | (CMD_IDENTIFY<<8); /* this includes TF_COMMAND */ 398194149Simp 399204789Sjmallett error = cf_wait_busy(); 400204789Sjmallett if (error == 0) { 401204789Sjmallett for (count = 0; count < SECTOR_SIZE; count+=2) { 402204789Sjmallett uint16_t temp; 403204789Sjmallett temp = task_file[TF_DATA]; 404204789Sjmallett 405204789Sjmallett /* endianess will be swapped below */ 406204789Sjmallett drive_param.u.buf[count] = (temp & 0xff); 407204789Sjmallett drive_param.u.buf[count+1] = (temp & 0xff00)>>8; 408204789Sjmallett } 409194149Simp } 410194149Simp } 411204789Sjmallett if (error != 0) { 412204789Sjmallett printf("%s: identify failed: %d\n", __func__, error); 413204789Sjmallett return (error); 414204789Sjmallett } 415194149Simp 416194149Simp cf_swap_ascii(drive_param.u.driveid.model, drive_param.model); 417194149Simp 418194149Simp drive_param.sector_size = 512; //= SWAP_SHORT (drive_param.u.driveid.sector_bytes); 419210311Sjmallett drive_param.heads = SWAP_SHORT (drive_param.u.driveid.current_heads); 420210311Sjmallett drive_param.tracks = SWAP_SHORT (drive_param.u.driveid.current_cylinders); 421210311Sjmallett drive_param.sec_track = SWAP_SHORT (drive_param.u.driveid.current_sectors); 422210311Sjmallett drive_param.nr_sectors = (uint32_t)SWAP_SHORT (drive_param.u.driveid.lba_size_1) | 423210311Sjmallett ((uint32_t)SWAP_SHORT (drive_param.u.driveid.lba_size_2)); 424194149Simp 425204789Sjmallett return (0); 426194149Simp} 427194149Simp 428194149Simp 429194149Simp/* ------------------------------------------------------------------- * 430194149Simp * cf_send_cmd() * 431194149Simp * ------------------------------------------------------------------- * 432194149Simp * 433194149Simp * Send command to read/write one sector specified by lba. 434194149Simp * 435194149Simp */ 436204789Sjmallettstatic int cf_send_cmd (uint32_t lba, uint8_t cmd) 437194149Simp{ 438194149Simp uint8_t status; 439194149Simp 440194149Simp if (bus_width == 8) { 441194149Simp volatile uint8_t *task_file; 442194149Simp 443194149Simp task_file = (volatile uint8_t *) base_addr; 444194149Simp 445194149Simp while ( (status = task_file[TF_STATUS]) & STATUS_BSY) { 446194149Simp DELAY(WAIT_DELAY); 447194149Simp } 448194149Simp 449194149Simp task_file[TF_SECTOR_COUNT] = 1; 450194149Simp task_file[TF_SECTOR_NUMBER] = (lba & 0xff); 451194149Simp task_file[TF_CYL_LSB] = ((lba >> 8) & 0xff); 452194149Simp task_file[TF_CYL_MSB] = ((lba >> 16) & 0xff); 453194149Simp task_file[TF_DRV_HEAD] = ((lba >> 24) & 0xff) | 0xe0; 454194149Simp task_file[TF_COMMAND] = cmd; 455194149Simp 456194149Simp } else { 457194149Simp volatile uint16_t *task_file; 458194149Simp 459194149Simp task_file = (volatile uint16_t *) base_addr; 460194149Simp 461194149Simp while ( (status = (task_file[TF_STATUS/2]>>8)) & STATUS_BSY) { 462194149Simp DELAY(WAIT_DELAY); 463194149Simp } 464194149Simp 465194149Simp task_file[TF_SECTOR_COUNT/2] = 1 | ((lba & 0xff) << 8); 466194149Simp task_file[TF_CYL_LSB/2] = ((lba >> 8) & 0xff) | (((lba >> 16) & 0xff) << 8); 467194149Simp task_file[TF_DRV_HEAD/2] = (((lba >> 24) & 0xff) | 0xe0) | (cmd << 8); 468194149Simp 469194149Simp } 470194149Simp 471204789Sjmallett return (cf_wait_busy()); 472194149Simp} 473194149Simp 474194149Simp/* ------------------------------------------------------------------- * 475194149Simp * cf_wait_busy() * 476194149Simp * ------------------------------------------------------------------- * 477194149Simp * 478194149Simp * Wait until the drive finishes a given command and data is 479194149Simp * ready to be transferred. This is done by repeatedly checking 480204789Sjmallett * the BSY bit of the status register. When the controller is ready for 481204789Sjmallett * data transfer, it clears the BSY bit and sets the DRQ bit. 482194149Simp * 483204789Sjmallett * If the DF bit is ever set, we return error. 484204789Sjmallett * 485204789Sjmallett * This code originally spun on DRQ. If that behavior turns out to be 486204789Sjmallett * necessary, a flag can be added or this function can be called 487204789Sjmallett * repeatedly as long as it is returning ENXIO. 488194149Simp */ 489204789Sjmallettstatic int cf_wait_busy (void) 490194149Simp{ 491194149Simp uint8_t status; 492194149Simp 493194149Simp//#define OCTEON_VISUAL_CF_2 1 494194149Simp#ifdef OCTEON_VISUAL_CF_2 495194149Simp static int where0 = 0; 496194149Simp 497194149Simp octeon_led_run_wheel(&where0, 2); 498194149Simp#endif 499194149Simp 500194149Simp if (bus_width == 8) { 501194149Simp volatile uint8_t *task_file; 502194149Simp task_file = (volatile uint8_t *)base_addr; 503194149Simp 504194149Simp status = task_file[TF_STATUS]; 505204789Sjmallett while ((status & STATUS_BSY) == STATUS_BSY) { 506204789Sjmallett if ((status & STATUS_DF) != 0) { 507204789Sjmallett printf("%s: device fault (status=%x)\n", __func__, status); 508204789Sjmallett return (EIO); 509204789Sjmallett } 510194149Simp DELAY(WAIT_DELAY); 511194149Simp status = task_file[TF_STATUS]; 512194149Simp } 513194149Simp } else { 514194149Simp volatile uint16_t *task_file; 515194149Simp task_file = (volatile uint16_t *)base_addr; 516194149Simp 517194149Simp status = task_file[TF_STATUS/2]>>8; 518204789Sjmallett while ((status & STATUS_BSY) == STATUS_BSY) { 519204789Sjmallett if ((status & STATUS_DF) != 0) { 520204789Sjmallett printf("%s: device fault (status=%x)\n", __func__, status); 521204789Sjmallett return (EIO); 522204789Sjmallett } 523194149Simp DELAY(WAIT_DELAY); 524194149Simp status = (uint8_t)(task_file[TF_STATUS/2]>>8); 525194149Simp } 526194149Simp } 527204789Sjmallett if ((status & STATUS_DRQ) == 0) { 528204789Sjmallett printf("%s: device not ready (status=%x)\n", __func__, status); 529204789Sjmallett return (ENXIO); 530204789Sjmallett } 531194149Simp 532194149Simp#ifdef OCTEON_VISUAL_CF_2 533194149Simp octeon_led_write_char(2, ' '); 534194149Simp#endif 535204789Sjmallett return (0); 536194149Simp} 537194149Simp 538194149Simp/* ------------------------------------------------------------------- * 539194149Simp * cf_swap_ascii() * 540194149Simp * ------------------------------------------------------------------- * 541194149Simp * 542194149Simp * The ascii string returned by the controller specifying 543194149Simp * the model of the drive is byte-swaped. This routine 544194149Simp * corrects the byte ordering. 545194149Simp * 546194149Simp */ 547194149Simpstatic void cf_swap_ascii (unsigned char str1[], char str2[]) 548194149Simp{ 549194149Simp int i; 550194149Simp 551194149Simp for(i = 0; i < MODEL_STR_SIZE; i++) { 552194149Simp str2[i] = str1[i^1]; 553194149Simp } 554194149Simp} 555194149Simp 556194149Simp 557194149Simp/* ------------------------------------------------------------------- * 558194149Simp * cf_probe() * 559194149Simp * ------------------------------------------------------------------- */ 560194149Simp 561194149Simpstatic int cf_probe (device_t dev) 562194149Simp{ 563210311Sjmallett if (octeon_is_simulation()) return 1; 564194149Simp 565194149Simp if (device_get_unit(dev) != 0) { 566194149Simp panic("can't attach more devices\n"); 567194149Simp } 568194149Simp 569194149Simp device_set_desc(dev, "Octeon Compact Flash Driver"); 570194149Simp 571204789Sjmallett return (cf_cmd_identify()); 572194149Simp} 573194149Simp 574194149Simp/* ------------------------------------------------------------------- * 575194149Simp * cf_identify() * 576194149Simp * ------------------------------------------------------------------- * 577194149Simp * 578194149Simp * Find the bootbus region for the CF to determine 579194149Simp * 16 or 8 bit and check to see if device is 580194149Simp * inserted. 581194149Simp * 582194149Simp */ 583194149Simpstatic void cf_identify (driver_t *drv, device_t parent) 584194149Simp{ 585194149Simp uint8_t status; 586194149Simp int bus_region; 587194149Simp int count = 0; 588210311Sjmallett cvmx_mio_boot_reg_cfgx_t cfg; 589194149Simp 590210311Sjmallett if (octeon_is_simulation()) 591194173Simp return; 592194149Simp 593210311Sjmallett base_addr = cvmx_phys_to_ptr(octeon_bootinfo->compact_flash_common_base_addr); 594194149Simp 595194149Simp for (bus_region = 0; bus_region < 8; bus_region++) 596194149Simp { 597210311Sjmallett cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(bus_region)); 598210311Sjmallett if (cfg.s.base == octeon_bootinfo->compact_flash_common_base_addr >> 16) 599194149Simp { 600210311Sjmallett bus_width = (cfg.s.width) ? 16: 8; 601194149Simp printf("Compact flash found in bootbus region %d (%d bit).\n", bus_region, bus_width); 602194149Simp break; 603194149Simp } 604194149Simp } 605194149Simp 606194149Simp if (bus_width == 8) { 607194149Simp volatile uint8_t *task_file; 608194149Simp task_file = (volatile uint8_t *) base_addr; 609194149Simp /* Check if CF is inserted */ 610194149Simp while ( (status = task_file[TF_STATUS]) & STATUS_BSY){ 611194149Simp if ((count++) == NR_TRIES ) { 612194149Simp printf("Compact Flash not present\n"); 613194149Simp return; 614194149Simp } 615194149Simp DELAY(WAIT_DELAY); 616194149Simp } 617194149Simp } else { 618194149Simp volatile uint16_t *task_file; 619194149Simp task_file = (volatile uint16_t *) base_addr; 620194149Simp /* Check if CF is inserted */ 621194149Simp while ( (status = (task_file[TF_STATUS/2]>>8)) & STATUS_BSY){ 622194149Simp if ((count++) == NR_TRIES ) { 623194149Simp printf("Compact Flash not present\n"); 624194149Simp return; 625194149Simp } 626194149Simp DELAY(WAIT_DELAY); 627194149Simp } 628194149Simp } 629194149Simp 630194149Simp BUS_ADD_CHILD(parent, 0, "cf", 0); 631194149Simp} 632194149Simp 633194149Simp 634194149Simp/* ------------------------------------------------------------------- * 635194149Simp * cf_attach_geom() * 636194149Simp * ------------------------------------------------------------------- */ 637194149Simp 638194149Simpstatic int cf_attach_geom (void *arg, int flag) 639194149Simp{ 640194149Simp struct cf_priv *cf_priv; 641194149Simp 642194149Simp cf_priv = (struct cf_priv *) arg; 643194149Simp cf_priv->cf_geom = g_new_geomf(&g_cf_class, "cf%d", device_get_unit(cf_priv->dev)); 644194149Simp cf_priv->cf_provider = g_new_providerf(cf_priv->cf_geom, cf_priv->cf_geom->name); 645194149Simp cf_priv->cf_geom->softc = cf_priv; 646194149Simp g_error_provider(cf_priv->cf_provider, 0); 647194149Simp 648194149Simp return (0); 649194149Simp} 650194149Simp 651194149Simp/* ------------------------------------------------------------------- * 652194149Simp * cf_attach_geom() * 653194149Simp * ------------------------------------------------------------------- */ 654194149Simpstatic void cf_attach_geom_proxy (void *arg, int flag) 655194149Simp{ 656194149Simp cf_attach_geom(arg, flag); 657194149Simp} 658194149Simp 659194149Simp 660194149Simp 661194149Simp/* ------------------------------------------------------------------- * 662194149Simp * cf_attach() * 663194149Simp * ------------------------------------------------------------------- */ 664194149Simp 665194149Simpstatic int cf_attach (device_t dev) 666194149Simp{ 667194149Simp struct cf_priv *cf_priv; 668194149Simp 669210311Sjmallett if (octeon_is_simulation()) return 1; 670194149Simp 671194149Simp cf_priv = device_get_softc(dev); 672194149Simp cf_priv->dev = dev; 673194149Simp cf_priv->drive_param = &drive_param; 674194149Simp 675194149Simp g_post_event(cf_attach_geom_proxy, cf_priv, M_WAITOK, NULL); 676194149Simp bioq_init(&cf_priv->cf_bq); 677194149Simp 678194149Simp return 0; 679194149Simp} 680194149Simp 681194149Simp 682194149Simpstatic device_method_t cf_methods[] = { 683194149Simp /* Device interface */ 684194149Simp DEVMETHOD(device_probe, cf_probe), 685194149Simp DEVMETHOD(device_identify, cf_identify), 686194149Simp DEVMETHOD(device_attach, cf_attach), 687194149Simp DEVMETHOD(device_detach, bus_generic_detach), 688194149Simp DEVMETHOD(device_shutdown, bus_generic_shutdown), 689194149Simp 690194149Simp { 0, 0 } 691194149Simp}; 692194149Simp 693194149Simpstatic driver_t cf_driver = { 694194149Simp "cf", 695194149Simp cf_methods, 696194149Simp sizeof(struct cf_priv) 697194149Simp}; 698194149Simp 699194149Simpstatic devclass_t cf_devclass; 700194149Simp 701194149SimpDRIVER_MODULE(cf, nexus, cf_driver, cf_devclass, 0, 0); 702194149Simp 703