89cb44523c
than spinning forever. This fixes booting with CF ejected.
NB: I've made the driver pretty chatty about errors in case there's hardware
that operates differently to mine, so we can easily track down any issues.
Reviewed by: imp
Sponsored by: Packet Forensics
701 lines
20 KiB
C
701 lines
20 KiB
C
/***********************license start***************
|
|
* Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
|
|
* reserved.
|
|
*
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
*
|
|
* * Neither the name of Cavium Networks nor the names of
|
|
* its contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
|
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
|
|
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
|
|
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
|
|
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
|
|
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
|
|
* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
|
|
* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
|
|
* POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
|
|
* OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
|
|
*
|
|
*
|
|
* For any questions regarding licensing please contact marketing@caviumnetworks.com
|
|
*
|
|
***********************license end**************************************/
|
|
|
|
/*
|
|
* octeon_ebt3000_cf.c
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bio.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/power.h>
|
|
#include <sys/smp.h>
|
|
#include <sys/time.h>
|
|
#include <sys/timetc.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <geom/geom.h>
|
|
|
|
#include <machine/clock.h>
|
|
#include <machine/locore.h>
|
|
#include <machine/md_var.h>
|
|
#include <machine/cpuregs.h>
|
|
|
|
#include "octeon_ebt3000_cf.h"
|
|
#include "driveid.h"
|
|
#include <mips/cavium/octeon_pcmap_regs.h>
|
|
|
|
/* ATA Commands */
|
|
#define CMD_READ_SECTOR 0x20
|
|
#define CMD_WRITE_SECTOR 0x30
|
|
#define CMD_IDENTIFY 0xEC
|
|
|
|
/* The ATA Task File */
|
|
#define TF_DATA 0x00
|
|
#define TF_ERROR 0x01
|
|
#define TF_PRECOMP 0x01
|
|
#define TF_SECTOR_COUNT 0x02
|
|
#define TF_SECTOR_NUMBER 0x03
|
|
#define TF_CYL_LSB 0x04
|
|
#define TF_CYL_MSB 0x05
|
|
#define TF_DRV_HEAD 0x06
|
|
#define TF_STATUS 0x07
|
|
#define TF_COMMAND 0x07
|
|
|
|
/* Status Register */
|
|
#define STATUS_BSY 0x80 /* Drive is busy */
|
|
#define STATUS_RDY 0x40 /* Drive is ready */
|
|
#define STATUS_DF 0x20 /* Device fault */
|
|
#define STATUS_DRQ 0x08 /* Data can be transferred */
|
|
|
|
/* Miscelaneous */
|
|
#define SECTOR_SIZE 512
|
|
#define WAIT_DELAY 1000
|
|
#define NR_TRIES 1000
|
|
#define SWAP_SHORT(x) ((x << 8) | (x >> 8))
|
|
#define SWAP_LONG(x) (((x << 24) & 0xFF000000) | ((x << 8) & 0x00FF0000) | \
|
|
((x >> 8) & 0x0000FF00) | ((x << 24) & 0x000000FF) )
|
|
#define MODEL_STR_SIZE 40
|
|
|
|
|
|
/* Globals */
|
|
int bus_width;
|
|
void *base_addr;
|
|
|
|
/* Device softc */
|
|
struct cf_priv {
|
|
|
|
device_t dev;
|
|
struct drive_param *drive_param;
|
|
|
|
struct bio_queue_head cf_bq;
|
|
struct g_geom *cf_geom;
|
|
struct g_provider *cf_provider;
|
|
|
|
};
|
|
|
|
/* Device parameters */
|
|
struct drive_param{
|
|
union {
|
|
char buf[SECTOR_SIZE];
|
|
struct hd_driveid driveid;
|
|
} u;
|
|
|
|
char model[MODEL_STR_SIZE];
|
|
uint32_t nr_sectors;
|
|
uint16_t sector_size;
|
|
uint16_t heads;
|
|
uint16_t tracks;
|
|
uint16_t sec_track;
|
|
|
|
} drive_param;
|
|
|
|
/* GEOM class implementation */
|
|
static g_access_t cf_access;
|
|
static g_start_t cf_start;
|
|
static g_ioctl_t cf_ioctl;
|
|
|
|
struct g_class g_cf_class = {
|
|
.name = "CF",
|
|
.version = G_VERSION,
|
|
.start = cf_start,
|
|
.access = cf_access,
|
|
.ioctl = cf_ioctl,
|
|
};
|
|
|
|
/* Device methods */
|
|
static int cf_probe(device_t);
|
|
static void cf_identify(driver_t *, device_t);
|
|
static int cf_attach(device_t);
|
|
static int cf_attach_geom(void *, int);
|
|
|
|
/* ATA methods */
|
|
static int cf_cmd_identify(void);
|
|
static int cf_cmd_write(uint32_t, uint32_t, void *);
|
|
static int cf_cmd_read(uint32_t, uint32_t, void *);
|
|
static int cf_wait_busy(void);
|
|
static int cf_send_cmd(uint32_t, uint8_t);
|
|
static void cf_attach_geom_proxy(void *arg, int flag);
|
|
|
|
/* Miscelenous */
|
|
static void cf_swap_ascii(unsigned char[], char[]);
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_access() *
|
|
* ------------------------------------------------------------------- */
|
|
static int cf_access (struct g_provider *pp, int r, int w, int e)
|
|
{
|
|
|
|
pp->sectorsize = drive_param.sector_size;
|
|
pp->stripesize = drive_param.heads * drive_param.sec_track * drive_param.sector_size;
|
|
pp->mediasize = pp->stripesize * drive_param.tracks;
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_start() *
|
|
* ------------------------------------------------------------------- */
|
|
static void cf_start (struct bio *bp)
|
|
{
|
|
int error;
|
|
|
|
/*
|
|
* Handle actual I/O requests. The request is passed down through
|
|
* the bio struct.
|
|
*/
|
|
|
|
if(bp->bio_cmd & BIO_GETATTR) {
|
|
if (g_handleattr_int(bp, "GEOM::fwsectors", drive_param.sec_track))
|
|
return;
|
|
if (g_handleattr_int(bp, "GEOM::fwheads", drive_param.heads))
|
|
return;
|
|
g_io_deliver(bp, ENOIOCTL);
|
|
return;
|
|
}
|
|
|
|
if ((bp->bio_cmd & (BIO_READ | BIO_WRITE))) {
|
|
|
|
if (bp->bio_cmd & BIO_READ) {
|
|
error = cf_cmd_read(bp->bio_length / drive_param.sector_size,
|
|
bp->bio_offset / drive_param.sector_size, bp->bio_data);
|
|
} else if (bp->bio_cmd & BIO_WRITE) {
|
|
error = cf_cmd_write(bp->bio_length / drive_param.sector_size,
|
|
bp->bio_offset/drive_param.sector_size, bp->bio_data);
|
|
} else {
|
|
printf("%s: unrecognized bio_cmd %x.\n", __func__, bp->bio_cmd);
|
|
error = ENOTSUP;
|
|
}
|
|
|
|
if (error != 0) {
|
|
g_io_deliver(bp, error);
|
|
return;
|
|
}
|
|
|
|
bp->bio_resid = 0;
|
|
bp->bio_completed = bp->bio_length;
|
|
g_io_deliver(bp, 0);
|
|
}
|
|
}
|
|
|
|
|
|
static int cf_ioctl (struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_cmd_read() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Read nr_sectors from the device starting from start_sector.
|
|
*/
|
|
static int cf_cmd_read (uint32_t nr_sectors, uint32_t start_sector, void *buf)
|
|
{
|
|
unsigned long lba;
|
|
uint32_t count;
|
|
uint16_t *ptr_16;
|
|
uint8_t *ptr_8;
|
|
int error;
|
|
|
|
//#define OCTEON_VISUAL_CF_0 1
|
|
#ifdef OCTEON_VISUAL_CF_0
|
|
octeon_led_write_char(0, 'R');
|
|
#endif
|
|
ptr_8 = (uint8_t*)buf;
|
|
ptr_16 = (uint16_t*)buf;
|
|
lba = start_sector;
|
|
|
|
|
|
while (nr_sectors--) {
|
|
error = cf_send_cmd(lba, CMD_READ_SECTOR);
|
|
if (error != 0) {
|
|
printf("%s: cf_send_cmd(CMD_READ_SECTOR) failed: %d\n", __func__, error);
|
|
return (error);
|
|
}
|
|
|
|
if (bus_width == 8) {
|
|
volatile uint8_t *task_file = (volatile uint8_t*)base_addr;
|
|
volatile uint8_t dummy;
|
|
for (count = 0; count < SECTOR_SIZE; count++) {
|
|
*ptr_8++ = task_file[TF_DATA];
|
|
if ((count & 0xf) == 0) dummy = task_file[TF_STATUS];
|
|
}
|
|
} else {
|
|
volatile uint16_t *task_file = (volatile uint16_t*)base_addr;
|
|
volatile uint16_t dummy;
|
|
for (count = 0; count < SECTOR_SIZE; count+=2) {
|
|
uint16_t temp;
|
|
temp = task_file[TF_DATA];
|
|
*ptr_16++ = SWAP_SHORT(temp);
|
|
if ((count & 0xf) == 0) dummy = task_file[TF_STATUS/2];
|
|
}
|
|
}
|
|
|
|
lba ++;
|
|
}
|
|
#ifdef OCTEON_VISUAL_CF_0
|
|
octeon_led_write_char(0, ' ');
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_cmd_write() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Write nr_sectors to the device starting from start_sector.
|
|
*/
|
|
static int cf_cmd_write (uint32_t nr_sectors, uint32_t start_sector, void *buf)
|
|
{
|
|
uint32_t lba;
|
|
uint32_t count;
|
|
uint16_t *ptr_16;
|
|
uint8_t *ptr_8;
|
|
int error;
|
|
|
|
//#define OCTEON_VISUAL_CF_1 1
|
|
#ifdef OCTEON_VISUAL_CF_1
|
|
octeon_led_write_char(1, 'W');
|
|
#endif
|
|
lba = start_sector;
|
|
ptr_8 = (uint8_t*)buf;
|
|
ptr_16 = (uint16_t*)buf;
|
|
|
|
while (nr_sectors--) {
|
|
error = cf_send_cmd(lba, CMD_WRITE_SECTOR);
|
|
if (error != 0) {
|
|
printf("%s: cf_send_cmd(CMD_WRITE_SECTOR) failed: %d\n", __func__, error);
|
|
return (error);
|
|
}
|
|
|
|
if (bus_width == 8) {
|
|
volatile uint8_t *task_file;
|
|
volatile uint8_t dummy;
|
|
|
|
task_file = (volatile uint8_t *) base_addr;
|
|
for (count = 0; count < SECTOR_SIZE; count++) {
|
|
task_file[TF_DATA] = *ptr_8++;
|
|
if ((count & 0xf) == 0) dummy = task_file[TF_STATUS];
|
|
}
|
|
} else {
|
|
volatile uint16_t *task_file;
|
|
volatile uint16_t dummy;
|
|
|
|
task_file = (volatile uint16_t *) base_addr;
|
|
for (count = 0; count < SECTOR_SIZE; count+=2) {
|
|
uint16_t temp = *ptr_16++;
|
|
task_file[TF_DATA] = SWAP_SHORT(temp);
|
|
if ((count & 0xf) == 0) dummy = task_file[TF_STATUS/2];
|
|
}
|
|
}
|
|
|
|
lba ++;
|
|
}
|
|
#ifdef OCTEON_VISUAL_CF_1
|
|
octeon_led_write_char(1, ' ');
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_cmd_identify() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Read parameters and other information from the drive and store
|
|
* it in the drive_param structure
|
|
*
|
|
*/
|
|
static int cf_cmd_identify (void)
|
|
{
|
|
int count;
|
|
uint8_t status;
|
|
int error;
|
|
|
|
if (bus_width == 8) {
|
|
volatile uint8_t *task_file;
|
|
|
|
task_file = (volatile uint8_t *) base_addr;
|
|
|
|
while ((status = task_file[TF_STATUS]) & STATUS_BSY) {
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
|
|
task_file[TF_SECTOR_COUNT] = 0;
|
|
task_file[TF_SECTOR_NUMBER] = 0;
|
|
task_file[TF_CYL_LSB] = 0;
|
|
task_file[TF_CYL_MSB] = 0;
|
|
task_file[TF_DRV_HEAD] = 0;
|
|
task_file[TF_COMMAND] = CMD_IDENTIFY;
|
|
|
|
error = cf_wait_busy();
|
|
if (error == 0) {
|
|
for (count = 0; count < SECTOR_SIZE; count++)
|
|
drive_param.u.buf[count] = task_file[TF_DATA];
|
|
}
|
|
} else {
|
|
volatile uint16_t *task_file;
|
|
|
|
task_file = (volatile uint16_t *) base_addr;
|
|
|
|
while ((status = (task_file[TF_STATUS/2]>>8)) & STATUS_BSY) {
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
|
|
task_file[TF_SECTOR_COUNT/2] = 0; /* this includes TF_SECTOR_NUMBER */
|
|
task_file[TF_CYL_LSB/2] = 0; /* this includes TF_CYL_MSB */
|
|
task_file[TF_DRV_HEAD/2] = 0 | (CMD_IDENTIFY<<8); /* this includes TF_COMMAND */
|
|
|
|
error = cf_wait_busy();
|
|
if (error == 0) {
|
|
for (count = 0; count < SECTOR_SIZE; count+=2) {
|
|
uint16_t temp;
|
|
temp = task_file[TF_DATA];
|
|
|
|
/* endianess will be swapped below */
|
|
drive_param.u.buf[count] = (temp & 0xff);
|
|
drive_param.u.buf[count+1] = (temp & 0xff00)>>8;
|
|
}
|
|
}
|
|
}
|
|
if (error != 0) {
|
|
printf("%s: identify failed: %d\n", __func__, error);
|
|
return (error);
|
|
}
|
|
|
|
cf_swap_ascii(drive_param.u.driveid.model, drive_param.model);
|
|
|
|
drive_param.sector_size = 512; //= SWAP_SHORT (drive_param.u.driveid.sector_bytes);
|
|
drive_param.heads = SWAP_SHORT (drive_param.u.driveid.cur_heads);
|
|
drive_param.tracks = SWAP_SHORT (drive_param.u.driveid.cur_cyls);
|
|
drive_param.sec_track = SWAP_SHORT (drive_param.u.driveid.cur_sectors);
|
|
drive_param.nr_sectors = SWAP_LONG (drive_param.u.driveid.lba_capacity);
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_send_cmd() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Send command to read/write one sector specified by lba.
|
|
*
|
|
*/
|
|
static int cf_send_cmd (uint32_t lba, uint8_t cmd)
|
|
{
|
|
uint8_t status;
|
|
|
|
if (bus_width == 8) {
|
|
volatile uint8_t *task_file;
|
|
|
|
task_file = (volatile uint8_t *) base_addr;
|
|
|
|
while ( (status = task_file[TF_STATUS]) & STATUS_BSY) {
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
|
|
task_file[TF_SECTOR_COUNT] = 1;
|
|
task_file[TF_SECTOR_NUMBER] = (lba & 0xff);
|
|
task_file[TF_CYL_LSB] = ((lba >> 8) & 0xff);
|
|
task_file[TF_CYL_MSB] = ((lba >> 16) & 0xff);
|
|
task_file[TF_DRV_HEAD] = ((lba >> 24) & 0xff) | 0xe0;
|
|
task_file[TF_COMMAND] = cmd;
|
|
|
|
} else {
|
|
volatile uint16_t *task_file;
|
|
|
|
task_file = (volatile uint16_t *) base_addr;
|
|
|
|
while ( (status = (task_file[TF_STATUS/2]>>8)) & STATUS_BSY) {
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
|
|
task_file[TF_SECTOR_COUNT/2] = 1 | ((lba & 0xff) << 8);
|
|
task_file[TF_CYL_LSB/2] = ((lba >> 8) & 0xff) | (((lba >> 16) & 0xff) << 8);
|
|
task_file[TF_DRV_HEAD/2] = (((lba >> 24) & 0xff) | 0xe0) | (cmd << 8);
|
|
|
|
}
|
|
|
|
return (cf_wait_busy());
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_wait_busy() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Wait until the drive finishes a given command and data is
|
|
* ready to be transferred. This is done by repeatedly checking
|
|
* the BSY bit of the status register. When the controller is ready for
|
|
* data transfer, it clears the BSY bit and sets the DRQ bit.
|
|
*
|
|
* If the DF bit is ever set, we return error.
|
|
*
|
|
* This code originally spun on DRQ. If that behavior turns out to be
|
|
* necessary, a flag can be added or this function can be called
|
|
* repeatedly as long as it is returning ENXIO.
|
|
*/
|
|
static int cf_wait_busy (void)
|
|
{
|
|
uint8_t status;
|
|
|
|
//#define OCTEON_VISUAL_CF_2 1
|
|
#ifdef OCTEON_VISUAL_CF_2
|
|
static int where0 = 0;
|
|
|
|
octeon_led_run_wheel(&where0, 2);
|
|
#endif
|
|
|
|
if (bus_width == 8) {
|
|
volatile uint8_t *task_file;
|
|
task_file = (volatile uint8_t *)base_addr;
|
|
|
|
status = task_file[TF_STATUS];
|
|
while ((status & STATUS_BSY) == STATUS_BSY) {
|
|
if ((status & STATUS_DF) != 0) {
|
|
printf("%s: device fault (status=%x)\n", __func__, status);
|
|
return (EIO);
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
status = task_file[TF_STATUS];
|
|
}
|
|
} else {
|
|
volatile uint16_t *task_file;
|
|
task_file = (volatile uint16_t *)base_addr;
|
|
|
|
status = task_file[TF_STATUS/2]>>8;
|
|
while ((status & STATUS_BSY) == STATUS_BSY) {
|
|
if ((status & STATUS_DF) != 0) {
|
|
printf("%s: device fault (status=%x)\n", __func__, status);
|
|
return (EIO);
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
status = (uint8_t)(task_file[TF_STATUS/2]>>8);
|
|
}
|
|
}
|
|
if ((status & STATUS_DRQ) == 0) {
|
|
printf("%s: device not ready (status=%x)\n", __func__, status);
|
|
return (ENXIO);
|
|
}
|
|
|
|
#ifdef OCTEON_VISUAL_CF_2
|
|
octeon_led_write_char(2, ' ');
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_swap_ascii() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* The ascii string returned by the controller specifying
|
|
* the model of the drive is byte-swaped. This routine
|
|
* corrects the byte ordering.
|
|
*
|
|
*/
|
|
static void cf_swap_ascii (unsigned char str1[], char str2[])
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < MODEL_STR_SIZE; i++) {
|
|
str2[i] = str1[i^1];
|
|
}
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_probe() *
|
|
* ------------------------------------------------------------------- */
|
|
|
|
static int cf_probe (device_t dev)
|
|
{
|
|
if (!octeon_board_real()) return 1;
|
|
|
|
if (device_get_unit(dev) != 0) {
|
|
panic("can't attach more devices\n");
|
|
}
|
|
|
|
device_set_desc(dev, "Octeon Compact Flash Driver");
|
|
|
|
return (cf_cmd_identify());
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_identify() *
|
|
* ------------------------------------------------------------------- *
|
|
*
|
|
* Find the bootbus region for the CF to determine
|
|
* 16 or 8 bit and check to see if device is
|
|
* inserted.
|
|
*
|
|
*/
|
|
static void cf_identify (driver_t *drv, device_t parent)
|
|
{
|
|
uint8_t status;
|
|
int bus_region;
|
|
int count = 0;
|
|
octeon_mio_boot_reg_cfgx_t cfg;
|
|
|
|
if (!octeon_board_real())
|
|
return;
|
|
|
|
base_addr = (void *) MIPS_PHYS_TO_KSEG0(OCTEON_CF_COMMON_BASE_ADDR);
|
|
|
|
for (bus_region = 0; bus_region < 8; bus_region++)
|
|
{
|
|
cfg.word64 = oct_read64(OCTEON_MIO_BOOT_REG_CFGX(bus_region));
|
|
if (cfg.bits.base == OCTEON_CF_COMMON_BASE_ADDR >> 16)
|
|
{
|
|
bus_width = (cfg.bits.width) ? 16: 8;
|
|
printf("Compact flash found in bootbus region %d (%d bit).\n", bus_region, bus_width);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (bus_width == 8) {
|
|
volatile uint8_t *task_file;
|
|
task_file = (volatile uint8_t *) base_addr;
|
|
/* Check if CF is inserted */
|
|
while ( (status = task_file[TF_STATUS]) & STATUS_BSY){
|
|
if ((count++) == NR_TRIES ) {
|
|
printf("Compact Flash not present\n");
|
|
return;
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
} else {
|
|
volatile uint16_t *task_file;
|
|
task_file = (volatile uint16_t *) base_addr;
|
|
/* Check if CF is inserted */
|
|
while ( (status = (task_file[TF_STATUS/2]>>8)) & STATUS_BSY){
|
|
if ((count++) == NR_TRIES ) {
|
|
printf("Compact Flash not present\n");
|
|
return;
|
|
}
|
|
DELAY(WAIT_DELAY);
|
|
}
|
|
}
|
|
|
|
BUS_ADD_CHILD(parent, 0, "cf", 0);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_attach_geom() *
|
|
* ------------------------------------------------------------------- */
|
|
|
|
static int cf_attach_geom (void *arg, int flag)
|
|
{
|
|
struct cf_priv *cf_priv;
|
|
|
|
cf_priv = (struct cf_priv *) arg;
|
|
cf_priv->cf_geom = g_new_geomf(&g_cf_class, "cf%d", device_get_unit(cf_priv->dev));
|
|
cf_priv->cf_provider = g_new_providerf(cf_priv->cf_geom, cf_priv->cf_geom->name);
|
|
cf_priv->cf_geom->softc = cf_priv;
|
|
g_error_provider(cf_priv->cf_provider, 0);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_attach_geom() *
|
|
* ------------------------------------------------------------------- */
|
|
static void cf_attach_geom_proxy (void *arg, int flag)
|
|
{
|
|
cf_attach_geom(arg, flag);
|
|
}
|
|
|
|
|
|
|
|
/* ------------------------------------------------------------------- *
|
|
* cf_attach() *
|
|
* ------------------------------------------------------------------- */
|
|
|
|
static int cf_attach (device_t dev)
|
|
{
|
|
struct cf_priv *cf_priv;
|
|
|
|
if (!octeon_board_real()) return 1;
|
|
|
|
cf_priv = device_get_softc(dev);
|
|
cf_priv->dev = dev;
|
|
cf_priv->drive_param = &drive_param;
|
|
|
|
g_post_event(cf_attach_geom_proxy, cf_priv, M_WAITOK, NULL);
|
|
bioq_init(&cf_priv->cf_bq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static device_method_t cf_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, cf_probe),
|
|
DEVMETHOD(device_identify, cf_identify),
|
|
DEVMETHOD(device_attach, cf_attach),
|
|
DEVMETHOD(device_detach, bus_generic_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t cf_driver = {
|
|
"cf",
|
|
cf_methods,
|
|
sizeof(struct cf_priv)
|
|
};
|
|
|
|
static devclass_t cf_devclass;
|
|
|
|
DRIVER_MODULE(cf, nexus, cf_driver, cf_devclass, 0, 0);
|
|
|