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upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/common/cmd_ide.c

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/*
* (C) Copyright 2000-2005
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
/*
* IDE support
*/
#include <common.h>
#include <config.h>
#include <watchdog.h>
#include <command.h>
#include <image.h>
#include <asm/byteorder.h>
#include <asm/io.h>
#if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
# include <pcmcia.h>
#endif
#ifdef CONFIG_8xx
# include <mpc8xx.h>
#endif
#ifdef CONFIG_MPC5xxx
#include <mpc5xxx.h>
#endif
#ifdef CONFIG_ORION5X
#include <asm/arch/orion5x.h>
#elif defined CONFIG_KIRKWOOD
#include <asm/arch/kirkwood.h>
#endif
#include <ide.h>
#include <ata.h>
#ifdef CONFIG_STATUS_LED
# include <status_led.h>
#endif
#ifdef CONFIG_IDE_8xx_DIRECT
DECLARE_GLOBAL_DATA_PTR;
#endif
#ifdef __PPC__
# define EIEIO __asm__ volatile ("eieio")
# define SYNC __asm__ volatile ("sync")
#else
# define EIEIO /* nothing */
# define SYNC /* nothing */
#endif
#ifdef CONFIG_IDE_8xx_DIRECT
/* Timings for IDE Interface
*
* SETUP / LENGTH / HOLD - cycles valid for 50 MHz clk
* 70 165 30 PIO-Mode 0, [ns]
* 4 9 2 [Cycles]
* 50 125 20 PIO-Mode 1, [ns]
* 3 7 2 [Cycles]
* 30 100 15 PIO-Mode 2, [ns]
* 2 6 1 [Cycles]
* 30 80 10 PIO-Mode 3, [ns]
* 2 5 1 [Cycles]
* 25 70 10 PIO-Mode 4, [ns]
* 2 4 1 [Cycles]
*/
const static pio_config_t pio_config_ns [IDE_MAX_PIO_MODE+1] =
{
/* Setup Length Hold */
{ 70, 165, 30 }, /* PIO-Mode 0, [ns] */
{ 50, 125, 20 }, /* PIO-Mode 1, [ns] */
{ 30, 101, 15 }, /* PIO-Mode 2, [ns] */
{ 30, 80, 10 }, /* PIO-Mode 3, [ns] */
{ 25, 70, 10 }, /* PIO-Mode 4, [ns] */
};
static pio_config_t pio_config_clk [IDE_MAX_PIO_MODE+1];
#ifndef CONFIG_SYS_PIO_MODE
#define CONFIG_SYS_PIO_MODE 0 /* use a relaxed default */
#endif
static int pio_mode = CONFIG_SYS_PIO_MODE;
/* Make clock cycles and always round up */
#define PCMCIA_MK_CLKS( t, T ) (( (t) * (T) + 999U ) / 1000U )
#endif /* CONFIG_IDE_8xx_DIRECT */
/* ------------------------------------------------------------------------- */
/* Current I/O Device */
static int curr_device = -1;
/* Current offset for IDE0 / IDE1 bus access */
ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS] = {
#if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
CONFIG_SYS_ATA_IDE0_OFFSET,
#endif
#if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1)
CONFIG_SYS_ATA_IDE1_OFFSET,
#endif
};
static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS];
block_dev_desc_t ide_dev_desc[CONFIG_SYS_IDE_MAXDEVICE];
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_IDE_LED
# if !defined(CONFIG_BMS2003) && \
!defined(CONFIG_CPC45) && \
!defined(CONFIG_KUP4K) && \
!defined(CONFIG_KUP4X)
static void ide_led (uchar led, uchar status);
#else
extern void ide_led (uchar led, uchar status);
#endif
#else
#define ide_led(a,b) /* dummy */
#endif
#ifdef CONFIG_IDE_RESET
static void ide_reset (void);
#else
#define ide_reset() /* dummy */
#endif
static void ide_ident (block_dev_desc_t *dev_desc);
static uchar ide_wait (int dev, ulong t);
#define IDE_TIME_OUT 2000 /* 2 sec timeout */
#define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
#define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
static void input_data(int dev, ulong *sect_buf, int words);
static void output_data(int dev, ulong *sect_buf, int words);
static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
#ifndef CONFIG_SYS_ATA_PORT_ADDR
#define CONFIG_SYS_ATA_PORT_ADDR(port) (port)
#endif
#ifdef CONFIG_ATAPI
static void atapi_inquiry(block_dev_desc_t *dev_desc);
ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer);
#endif
#ifdef CONFIG_IDE_8xx_DIRECT
static void set_pcmcia_timing (int pmode);
#endif
/* ------------------------------------------------------------------------- */
int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = 0;
switch (argc) {
case 0:
case 1:
return cmd_usage(cmdtp);
case 2:
if (strncmp(argv[1],"res",3) == 0) {
puts ("\nReset IDE"
#ifdef CONFIG_IDE_8xx_DIRECT
" on PCMCIA " PCMCIA_SLOT_MSG
#endif
": ");
ide_init ();
return 0;
} else if (strncmp(argv[1],"inf",3) == 0) {
int i;
putc ('\n');
for (i=0; i<CONFIG_SYS_IDE_MAXDEVICE; ++i) {
if (ide_dev_desc[i].type==DEV_TYPE_UNKNOWN)
continue; /* list only known devices */
printf ("IDE device %d: ", i);
dev_print(&ide_dev_desc[i]);
}
return 0;
} else if (strncmp(argv[1],"dev",3) == 0) {
if ((curr_device < 0) || (curr_device >= CONFIG_SYS_IDE_MAXDEVICE)) {
puts ("\nno IDE devices available\n");
return 1;
}
printf ("\nIDE device %d: ", curr_device);
dev_print(&ide_dev_desc[curr_device]);
return 0;
} else if (strncmp(argv[1],"part",4) == 0) {
int dev, ok;
for (ok=0, dev=0; dev<CONFIG_SYS_IDE_MAXDEVICE; ++dev) {
if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
++ok;
if (dev)
putc ('\n');
print_part(&ide_dev_desc[dev]);
}
}
if (!ok) {
puts ("\nno IDE devices available\n");
rcode ++;
}
return rcode;
}
return cmd_usage(cmdtp);
case 3:
if (strncmp(argv[1],"dev",3) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
printf ("\nIDE device %d: ", dev);
if (dev >= CONFIG_SYS_IDE_MAXDEVICE) {
puts ("unknown device\n");
return 1;
}
dev_print(&ide_dev_desc[dev]);
/*ide_print (dev);*/
if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
return 1;
}
curr_device = dev;
puts ("... is now current device\n");
return 0;
} else if (strncmp(argv[1],"part",4) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
print_part(&ide_dev_desc[dev]);
} else {
printf ("\nIDE device %d not available\n", dev);
rcode = 1;
}
return rcode;
#if 0
} else if (strncmp(argv[1],"pio",4) == 0) {
int mode = (int)simple_strtoul(argv[2], NULL, 10);
if ((mode >= 0) && (mode <= IDE_MAX_PIO_MODE)) {
puts ("\nSetting ");
pio_mode = mode;
ide_init ();
} else {
printf ("\nInvalid PIO mode %d (0 ... %d only)\n",
mode, IDE_MAX_PIO_MODE);
}
return;
#endif
}
return cmd_usage(cmdtp);
default:
/* at least 4 args */
if (strcmp(argv[1],"read") == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong cnt = simple_strtoul(argv[4], NULL, 16);
ulong n;
#ifdef CONFIG_SYS_64BIT_LBA
lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
printf ("\nIDE read: device %d block # %Ld, count %ld ... ",
curr_device, blk, cnt);
#else
lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
printf ("\nIDE read: device %d block # %ld, count %ld ... ",
curr_device, blk, cnt);
#endif
n = ide_dev_desc[curr_device].block_read (curr_device,
blk, cnt,
(ulong *)addr);
/* flush cache after read */
flush_cache (addr, cnt*ide_dev_desc[curr_device].blksz);
printf ("%ld blocks read: %s\n",
n, (n==cnt) ? "OK" : "ERROR");
if (n==cnt) {
return 0;
} else {
return 1;
}
} else if (strcmp(argv[1],"write") == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong cnt = simple_strtoul(argv[4], NULL, 16);
ulong n;
#ifdef CONFIG_SYS_64BIT_LBA
lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
printf ("\nIDE write: device %d block # %Ld, count %ld ... ",
curr_device, blk, cnt);
#else
lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
printf ("\nIDE write: device %d block # %ld, count %ld ... ",
curr_device, blk, cnt);
#endif
n = ide_write (curr_device, blk, cnt, (ulong *)addr);
printf ("%ld blocks written: %s\n",
n, (n==cnt) ? "OK" : "ERROR");
if (n==cnt)
return 0;
else
return 1;
} else {
return cmd_usage(cmdtp);
}
return rcode;
}
}
int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char *boot_device = NULL;
char *ep;
int dev, part = 0;
ulong addr, cnt;
disk_partition_t info;
image_header_t *hdr;
int rcode = 0;
#if defined(CONFIG_FIT)
const void *fit_hdr = NULL;
#endif
show_boot_progress (41);
switch (argc) {
case 1:
addr = CONFIG_SYS_LOAD_ADDR;
boot_device = getenv ("bootdevice");
break;
case 2:
addr = simple_strtoul(argv[1], NULL, 16);
boot_device = getenv ("bootdevice");
break;
case 3:
addr = simple_strtoul(argv[1], NULL, 16);
boot_device = argv[2];
break;
default:
show_boot_progress (-42);
return cmd_usage(cmdtp);
}
show_boot_progress (42);
if (!boot_device) {
puts ("\n** No boot device **\n");
show_boot_progress (-43);
return 1;
}
show_boot_progress (43);
dev = simple_strtoul(boot_device, &ep, 16);
if (ide_dev_desc[dev].type==DEV_TYPE_UNKNOWN) {
printf ("\n** Device %d not available\n", dev);
show_boot_progress (-44);
return 1;
}
show_boot_progress (44);
if (*ep) {
if (*ep != ':') {
puts ("\n** Invalid boot device, use `dev[:part]' **\n");
show_boot_progress (-45);
return 1;
}
part = simple_strtoul(++ep, NULL, 16);
}
show_boot_progress (45);
if (get_partition_info (&ide_dev_desc[dev], part, &info)) {
show_boot_progress (-46);
return 1;
}
show_boot_progress (46);
if ((strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
(strncmp((char *)info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
printf ("\n** Invalid partition type \"%.32s\""
" (expect \"" BOOT_PART_TYPE "\")\n",
info.type);
show_boot_progress (-47);
return 1;
}
show_boot_progress (47);
printf ("\nLoading from IDE device %d, partition %d: "
"Name: %.32s Type: %.32s\n",
dev, part, info.name, info.type);
debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
info.start, info.size, info.blksz);
if (ide_dev_desc[dev].block_read (dev, info.start, 1, (ulong *)addr) != 1) {
printf ("** Read error on %d:%d\n", dev, part);
show_boot_progress (-48);
return 1;
}
show_boot_progress (48);
switch (genimg_get_format ((void *)addr)) {
case IMAGE_FORMAT_LEGACY:
hdr = (image_header_t *)addr;
show_boot_progress (49);
if (!image_check_hcrc (hdr)) {
puts ("\n** Bad Header Checksum **\n");
show_boot_progress (-50);
return 1;
}
show_boot_progress (50);
image_print_contents (hdr);
cnt = image_get_image_size (hdr);
break;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
fit_hdr = (const void *)addr;
puts ("Fit image detected...\n");
cnt = fit_get_size (fit_hdr);
break;
#endif
default:
show_boot_progress (-49);
puts ("** Unknown image type\n");
return 1;
}
cnt += info.blksz - 1;
cnt /= info.blksz;
cnt -= 1;
if (ide_dev_desc[dev].block_read (dev, info.start+1, cnt,
(ulong *)(addr+info.blksz)) != cnt) {
printf ("** Read error on %d:%d\n", dev, part);
show_boot_progress (-51);
return 1;
}
show_boot_progress (51);
#if defined(CONFIG_FIT)
/* This cannot be done earlier, we need complete FIT image in RAM first */
if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
if (!fit_check_format (fit_hdr)) {
show_boot_progress (-140);
puts ("** Bad FIT image format\n");
return 1;
}
show_boot_progress (141);
fit_print_contents (fit_hdr);
}
#endif
/* Loading ok, update default load address */
load_addr = addr;
/* Check if we should attempt an auto-start */
if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
char *local_args[2];
local_args[0] = argv[0];
local_args[1] = NULL;
printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
do_bootm (cmdtp, 0, 1, local_args);
rcode = 1;
}
return rcode;
}
/* ------------------------------------------------------------------------- */
void inline
__ide_outb(int dev, int port, unsigned char val)
{
debug ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
dev, port, val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
outb(val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
}
void ide_outb (int dev, int port, unsigned char val)
__attribute__((weak, alias("__ide_outb")));
unsigned char inline
__ide_inb(int dev, int port)
{
uchar val;
val = inb((ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)));
debug ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
dev, port, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)), val);
return val;
}
unsigned char ide_inb(int dev, int port)
__attribute__((weak, alias("__ide_inb")));
#ifdef CONFIG_TUNE_PIO
int inline
__ide_set_piomode(int pio_mode)
{
return 0;
}
int inline ide_set_piomode(int pio_mode)
__attribute__((weak, alias("__ide_set_piomode")));
#endif
void ide_init (void)
{
#ifdef CONFIG_IDE_8xx_DIRECT
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
#endif
unsigned char c;
int i, bus;
#if defined(CONFIG_SC3)
unsigned int ata_reset_time = ATA_RESET_TIME;
#endif
#ifdef CONFIG_IDE_8xx_PCCARD
extern int pcmcia_on (void);
extern int ide_devices_found; /* Initialized in check_ide_device() */
#endif /* CONFIG_IDE_8xx_PCCARD */
#ifdef CONFIG_IDE_PREINIT
extern int ide_preinit (void);
WATCHDOG_RESET();
if (ide_preinit ()) {
puts ("ide_preinit failed\n");
return;
}
#endif /* CONFIG_IDE_PREINIT */
#ifdef CONFIG_IDE_8xx_PCCARD
extern int pcmcia_on (void);
extern int ide_devices_found; /* Initialized in check_ide_device() */
WATCHDOG_RESET();
ide_devices_found = 0;
/* initialize the PCMCIA IDE adapter card */
pcmcia_on();
if (!ide_devices_found)
return;
udelay (1000000); /* 1 s */
#endif /* CONFIG_IDE_8xx_PCCARD */
WATCHDOG_RESET();
#ifdef CONFIG_IDE_8xx_DIRECT
/* Initialize PIO timing tables */
for (i=0; i <= IDE_MAX_PIO_MODE; ++i) {
pio_config_clk[i].t_setup = PCMCIA_MK_CLKS(pio_config_ns[i].t_setup,
gd->bus_clk);
pio_config_clk[i].t_length = PCMCIA_MK_CLKS(pio_config_ns[i].t_length,
gd->bus_clk);
pio_config_clk[i].t_hold = PCMCIA_MK_CLKS(pio_config_ns[i].t_hold,
gd->bus_clk);
debug ( "PIO Mode %d: setup=%2d ns/%d clk"
" len=%3d ns/%d clk"
" hold=%2d ns/%d clk\n",
i,
pio_config_ns[i].t_setup, pio_config_clk[i].t_setup,
pio_config_ns[i].t_length, pio_config_clk[i].t_length,
pio_config_ns[i].t_hold, pio_config_clk[i].t_hold);
}
#endif /* CONFIG_IDE_8xx_DIRECT */
/* Reset the IDE just to be sure.
* Light LED's to show
*/
ide_led ((LED_IDE1 | LED_IDE2), 1); /* LED's on */
ide_reset (); /* ATAPI Drives seems to need a proper IDE Reset */
#ifdef CONFIG_IDE_8xx_DIRECT
/* PCMCIA / IDE initialization for common mem space */
pcmp->pcmc_pgcrb = 0;
/* start in PIO mode 0 - most relaxed timings */
pio_mode = 0;
set_pcmcia_timing (pio_mode);
#endif /* CONFIG_IDE_8xx_DIRECT */
/*
* Wait for IDE to get ready.
* According to spec, this can take up to 31 seconds!
*/
for (bus=0; bus<CONFIG_SYS_IDE_MAXBUS; ++bus) {
int dev = bus * (CONFIG_SYS_IDE_MAXDEVICE / CONFIG_SYS_IDE_MAXBUS);
#ifdef CONFIG_IDE_8xx_PCCARD
/* Skip non-ide devices from probing */
if ((ide_devices_found & (1 << bus)) == 0) {
ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
continue;
}
#endif
printf ("Bus %d: ", bus);
ide_bus_ok[bus] = 0;
/* Select device
*/
udelay (100000); /* 100 ms */
ide_outb (dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
udelay (100000); /* 100 ms */
i = 0;
do {
udelay (10000); /* 10 ms */
c = ide_inb (dev, ATA_STATUS);
i++;
#if defined(CONFIG_SC3)
if (i > (ata_reset_time * 100)) {
#else
if (i > (ATA_RESET_TIME * 100)) {
#endif
puts ("** Timeout **\n");
ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
return;
}
if ((i >= 100) && ((i%100)==0)) {
putc ('.');
}
} while (c & ATA_STAT_BUSY);
if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
puts ("not available ");
debug ("Status = 0x%02X ", c);
#ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
} else if ((c & ATA_STAT_READY) == 0) {
puts ("not available ");
debug ("Status = 0x%02X ", c);
#endif
} else {
puts ("OK ");
ide_bus_ok[bus] = 1;
}
WATCHDOG_RESET();
}
putc ('\n');
ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
curr_device = -1;
for (i=0; i<CONFIG_SYS_IDE_MAXDEVICE; ++i) {
#ifdef CONFIG_IDE_LED
int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
#endif
ide_dev_desc[i].type=DEV_TYPE_UNKNOWN;
ide_dev_desc[i].if_type=IF_TYPE_IDE;
ide_dev_desc[i].dev=i;
ide_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
ide_dev_desc[i].blksz=0;
ide_dev_desc[i].lba=0;
ide_dev_desc[i].block_read=ide_read;
if (!ide_bus_ok[IDE_BUS(i)])
continue;
ide_led (led, 1); /* LED on */
ide_ident(&ide_dev_desc[i]);
ide_led (led, 0); /* LED off */
dev_print(&ide_dev_desc[i]);
/* ide_print (i); */
if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
init_part (&ide_dev_desc[i]); /* initialize partition type */
if (curr_device < 0)
curr_device = i;
}
}
WATCHDOG_RESET();
}
/* ------------------------------------------------------------------------- */
block_dev_desc_t * ide_get_dev(int dev)
{
return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL;
}
#ifdef CONFIG_IDE_8xx_DIRECT
static void
set_pcmcia_timing (int pmode)
{
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
ulong timings;
debug ("Set timing for PIO Mode %d\n", pmode);
timings = PCMCIA_SHT(pio_config_clk[pmode].t_hold)
| PCMCIA_SST(pio_config_clk[pmode].t_setup)
| PCMCIA_SL (pio_config_clk[pmode].t_length)
;
/* IDE 0
*/
pcmp->pcmc_pbr0 = CONFIG_SYS_PCMCIA_PBR0;
pcmp->pcmc_por0 = CONFIG_SYS_PCMCIA_POR0
#if (CONFIG_SYS_PCMCIA_POR0 != 0)
| timings
#endif
;
debug ("PBR0: %08x POR0: %08x\n", pcmp->pcmc_pbr0, pcmp->pcmc_por0);
pcmp->pcmc_pbr1 = CONFIG_SYS_PCMCIA_PBR1;
pcmp->pcmc_por1 = CONFIG_SYS_PCMCIA_POR1
#if (CONFIG_SYS_PCMCIA_POR1 != 0)
| timings
#endif
;
debug ("PBR1: %08x POR1: %08x\n", pcmp->pcmc_pbr1, pcmp->pcmc_por1);
pcmp->pcmc_pbr2 = CONFIG_SYS_PCMCIA_PBR2;
pcmp->pcmc_por2 = CONFIG_SYS_PCMCIA_POR2
#if (CONFIG_SYS_PCMCIA_POR2 != 0)
| timings
#endif
;
debug ("PBR2: %08x POR2: %08x\n", pcmp->pcmc_pbr2, pcmp->pcmc_por2);
pcmp->pcmc_pbr3 = CONFIG_SYS_PCMCIA_PBR3;
pcmp->pcmc_por3 = CONFIG_SYS_PCMCIA_POR3
#if (CONFIG_SYS_PCMCIA_POR3 != 0)
| timings
#endif
;
debug ("PBR3: %08x POR3: %08x\n", pcmp->pcmc_pbr3, pcmp->pcmc_por3);
/* IDE 1
*/
pcmp->pcmc_pbr4 = CONFIG_SYS_PCMCIA_PBR4;
pcmp->pcmc_por4 = CONFIG_SYS_PCMCIA_POR4
#if (CONFIG_SYS_PCMCIA_POR4 != 0)
| timings
#endif
;
debug ("PBR4: %08x POR4: %08x\n", pcmp->pcmc_pbr4, pcmp->pcmc_por4);
pcmp->pcmc_pbr5 = CONFIG_SYS_PCMCIA_PBR5;
pcmp->pcmc_por5 = CONFIG_SYS_PCMCIA_POR5
#if (CONFIG_SYS_PCMCIA_POR5 != 0)
| timings
#endif
;
debug ("PBR5: %08x POR5: %08x\n", pcmp->pcmc_pbr5, pcmp->pcmc_por5);
pcmp->pcmc_pbr6 = CONFIG_SYS_PCMCIA_PBR6;
pcmp->pcmc_por6 = CONFIG_SYS_PCMCIA_POR6
#if (CONFIG_SYS_PCMCIA_POR6 != 0)
| timings
#endif
;
debug ("PBR6: %08x POR6: %08x\n", pcmp->pcmc_pbr6, pcmp->pcmc_por6);
pcmp->pcmc_pbr7 = CONFIG_SYS_PCMCIA_PBR7;
pcmp->pcmc_por7 = CONFIG_SYS_PCMCIA_POR7
#if (CONFIG_SYS_PCMCIA_POR7 != 0)
| timings
#endif
;
debug ("PBR7: %08x POR7: %08x\n", pcmp->pcmc_pbr7, pcmp->pcmc_por7);
}
#endif /* CONFIG_IDE_8xx_DIRECT */
/* ------------------------------------------------------------------------- */
/* We only need to swap data if we are running on a big endian cpu. */
/* But Au1x00 cpu:s already swaps data in big endian mode! */
#if defined(__LITTLE_ENDIAN) || ( defined(CONFIG_AU1X00) && !defined(CONFIG_GTH2) )
#define input_swap_data(x,y,z) input_data(x,y,z)
#else
static void
input_swap_data(int dev, ulong *sect_buf, int words)
{
#if defined(CONFIG_CPC45)
uchar i;
volatile uchar *pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
volatile uchar *pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
ushort *dbuf = (ushort *)sect_buf;
while (words--) {
for (i=0; i<2; i++) {
*(((uchar *)(dbuf)) + 1) = *pbuf_even;
*(uchar *)dbuf = *pbuf_odd;
dbuf+=1;
}
}
#else
volatile ushort *pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
ushort *dbuf = (ushort *)sect_buf;
debug("in input swap data base for read is %lx\n", (unsigned long) pbuf);
while (words--) {
#ifdef __MIPS__
*dbuf++ = swab16p((u16*)pbuf);
*dbuf++ = swab16p((u16*)pbuf);
#elif defined(CONFIG_PCS440EP)
*dbuf++ = *pbuf;
*dbuf++ = *pbuf;
#else
*dbuf++ = ld_le16(pbuf);
*dbuf++ = ld_le16(pbuf);
#endif /* !MIPS */
}
#endif
}
#endif /* __LITTLE_ENDIAN || CONFIG_AU1X00 */
#if defined(CONFIG_IDE_SWAP_IO)
static void
output_data(int dev, ulong *sect_buf, int words)
{
#if defined(CONFIG_CPC45)
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
dbuf = (uchar *)sect_buf;
while (words--) {
EIEIO;
*pbuf_even = *dbuf++;
EIEIO;
*pbuf_odd = *dbuf++;
EIEIO;
*pbuf_even = *dbuf++;
EIEIO;
*pbuf_odd = *dbuf++;
}
#else
ushort *dbuf;
volatile ushort *pbuf;
pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
dbuf = (ushort *)sect_buf;
while (words--) {
#if defined(CONFIG_PCS440EP)
/* not tested, because CF was write protected */
EIEIO;
*pbuf = ld_le16(dbuf++);
EIEIO;
*pbuf = ld_le16(dbuf++);
#else
EIEIO;
*pbuf = *dbuf++;
EIEIO;
*pbuf = *dbuf++;
#endif
}
#endif
}
#else /* ! CONFIG_IDE_SWAP_IO */
static void
output_data(int dev, ulong *sect_buf, int words)
{
outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1);
}
#endif /* CONFIG_IDE_SWAP_IO */
#if defined(CONFIG_IDE_SWAP_IO)
static void
input_data(int dev, ulong *sect_buf, int words)
{
#if defined(CONFIG_CPC45)
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
dbuf = (uchar *)sect_buf;
while (words--) {
*dbuf++ = *pbuf_even;
EIEIO;
SYNC;
*dbuf++ = *pbuf_odd;
EIEIO;
SYNC;
*dbuf++ = *pbuf_even;
EIEIO;
SYNC;
*dbuf++ = *pbuf_odd;
EIEIO;
SYNC;
}
#else
ushort *dbuf;
volatile ushort *pbuf;
pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
dbuf = (ushort *)sect_buf;
debug("in input data base for read is %lx\n", (unsigned long) pbuf);
while (words--) {
#if defined(CONFIG_PCS440EP)
EIEIO;
*dbuf++ = ld_le16(pbuf);
EIEIO;
*dbuf++ = ld_le16(pbuf);
#else
EIEIO;
*dbuf++ = *pbuf;
EIEIO;
*dbuf++ = *pbuf;
#endif
}
#endif
}
#else /* ! CONFIG_IDE_SWAP_IO */
static void
input_data(int dev, ulong *sect_buf, int words)
{
insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
}
#endif /* CONFIG_IDE_SWAP_IO */
/* -------------------------------------------------------------------------
*/
static void ide_ident (block_dev_desc_t *dev_desc)
{
ulong iobuf[ATA_SECTORWORDS];
unsigned char c;
hd_driveid_t *iop = (hd_driveid_t *)iobuf;
#ifdef CONFIG_ATAPI
int retries = 0;
int do_retry = 0;
#endif
#ifdef CONFIG_TUNE_PIO
int pio_mode;
#endif
#if 0
int mode, cycle_time;
#endif
int device;
device=dev_desc->dev;
printf (" Device %d: ", device);
ide_led (DEVICE_LED(device), 1); /* LED on */
/* Select device
*/
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
dev_desc->if_type=IF_TYPE_IDE;
#ifdef CONFIG_ATAPI
do_retry = 0;
retries = 0;
/* Warning: This will be tricky to read */
while (retries <= 1) {
/* check signature */
if ((ide_inb(device,ATA_SECT_CNT) == 0x01) &&
(ide_inb(device,ATA_SECT_NUM) == 0x01) &&
(ide_inb(device,ATA_CYL_LOW) == 0x14) &&
(ide_inb(device,ATA_CYL_HIGH) == 0xEB)) {
/* ATAPI Signature found */
dev_desc->if_type=IF_TYPE_ATAPI;
/* Start Ident Command
*/
ide_outb (device, ATA_COMMAND, ATAPI_CMD_IDENT);
/*
* Wait for completion - ATAPI devices need more time
* to become ready
*/
c = ide_wait (device, ATAPI_TIME_OUT);
} else
#endif
{
/* Start Ident Command
*/
ide_outb (device, ATA_COMMAND, ATA_CMD_IDENT);
/* Wait for completion
*/
c = ide_wait (device, IDE_TIME_OUT);
}
ide_led (DEVICE_LED(device), 0); /* LED off */
if (((c & ATA_STAT_DRQ) == 0) ||
((c & (ATA_STAT_FAULT|ATA_STAT_ERR)) != 0) ) {
#ifdef CONFIG_ATAPI
{
/* Need to soft reset the device in case it's an ATAPI... */
debug ("Retrying...\n");
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
udelay(100000);
ide_outb (device, ATA_COMMAND, 0x08);
udelay (500000); /* 500 ms */
}
/* Select device
*/
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
retries++;
#else
return;
#endif
}
#ifdef CONFIG_ATAPI
else
break;
} /* see above - ugly to read */
if (retries == 2) /* Not found */
return;
#endif
input_swap_data (device, iobuf, ATA_SECTORWORDS);
ident_cpy ((unsigned char*)dev_desc->revision, iop->fw_rev, sizeof(dev_desc->revision));
ident_cpy ((unsigned char*)dev_desc->vendor, iop->model, sizeof(dev_desc->vendor));
ident_cpy ((unsigned char*)dev_desc->product, iop->serial_no, sizeof(dev_desc->product));
#ifdef __LITTLE_ENDIAN
/*
* firmware revision, model, and serial number have Big Endian Byte
* order in Word. Convert all three to little endian.
*
* See CF+ and CompactFlash Specification Revision 2.0:
* 6.2.1.6: Identify Drive, Table 39 for more details
*/
strswab (dev_desc->revision);
strswab (dev_desc->vendor);
strswab (dev_desc->product);
#endif /* __LITTLE_ENDIAN */
if ((iop->config & 0x0080)==0x0080)
dev_desc->removable = 1;
else
dev_desc->removable = 0;
#ifdef CONFIG_TUNE_PIO
/* Mode 0 - 2 only, are directly determined by word 51. */
pio_mode = iop->tPIO;
if (pio_mode > 2) {
printf("WARNING: Invalid PIO (word 51 = %d).\n", pio_mode);
pio_mode = 0; /* Force it to dead slow, and hope for the best... */
}
/* Any CompactFlash Storage Card that supports PIO mode 3 or above
* shall set bit 1 of word 53 to one and support the fields contained
* in words 64 through 70.
*/
if (iop->field_valid & 0x02) {
/* Mode 3 and above are possible. Check in order from slow
* to fast, so we wind up with the highest mode allowed.
*/
if (iop->eide_pio_modes & 0x01)
pio_mode = 3;
if (iop->eide_pio_modes & 0x02)
pio_mode = 4;
if (ata_id_is_cfa((u16 *)iop)) {
if ((iop->cf_advanced_caps & 0x07) == 0x01)
pio_mode = 5;
if ((iop->cf_advanced_caps & 0x07) == 0x02)
pio_mode = 6;
}
}
/* System-specific, depends on bus speeds, etc. */
ide_set_piomode(pio_mode);
#endif /* CONFIG_TUNE_PIO */
#if 0
/*
* Drive PIO mode autoselection
*/
mode = iop->tPIO;
printf ("tPIO = 0x%02x = %d\n",mode, mode);
if (mode > 2) { /* 2 is maximum allowed tPIO value */
mode = 2;
debug ("Override tPIO -> 2\n");
}
if (iop->field_valid & 2) { /* drive implements ATA2? */
debug ("Drive implements ATA2\n");
if (iop->capability & 8) { /* drive supports use_iordy? */
cycle_time = iop->eide_pio_iordy;
} else {
cycle_time = iop->eide_pio;
}
debug ("cycle time = %d\n", cycle_time);
mode = 4;
if (cycle_time > 120) mode = 3; /* 120 ns for PIO mode 4 */
if (cycle_time > 180) mode = 2; /* 180 ns for PIO mode 3 */
if (cycle_time > 240) mode = 1; /* 240 ns for PIO mode 4 */
if (cycle_time > 383) mode = 0; /* 383 ns for PIO mode 4 */
}
printf ("PIO mode to use: PIO %d\n", mode);
#endif /* 0 */
#ifdef CONFIG_ATAPI
if (dev_desc->if_type==IF_TYPE_ATAPI) {
atapi_inquiry(dev_desc);
return;
}
#endif /* CONFIG_ATAPI */
#ifdef __BIG_ENDIAN
/* swap shorts */
dev_desc->lba = (iop->lba_capacity << 16) | (iop->lba_capacity >> 16);
#else /* ! __BIG_ENDIAN */
/*
* do not swap shorts on little endian
*
* See CF+ and CompactFlash Specification Revision 2.0:
* 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
*/
dev_desc->lba = iop->lba_capacity;
#endif /* __BIG_ENDIAN */
#ifdef CONFIG_LBA48
if (iop->command_set_2 & 0x0400) { /* LBA 48 support */
dev_desc->lba48 = 1;
dev_desc->lba = (unsigned long long)iop->lba48_capacity[0] |
((unsigned long long)iop->lba48_capacity[1] << 16) |
((unsigned long long)iop->lba48_capacity[2] << 32) |
((unsigned long long)iop->lba48_capacity[3] << 48);
} else {
dev_desc->lba48 = 0;
}
#endif /* CONFIG_LBA48 */
/* assuming HD */
dev_desc->type=DEV_TYPE_HARDDISK;
dev_desc->blksz=ATA_BLOCKSIZE;
dev_desc->lun=0; /* just to fill something in... */
#if 0 /* only used to test the powersaving mode,
* if enabled, the drive goes after 5 sec
* in standby mode */
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
c = ide_wait (device, IDE_TIME_OUT);
ide_outb (device, ATA_SECT_CNT, 1);
ide_outb (device, ATA_LBA_LOW, 0);
ide_outb (device, ATA_LBA_MID, 0);
ide_outb (device, ATA_LBA_HIGH, 0);
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
ide_outb (device, ATA_COMMAND, 0xe3);
udelay (50);
c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
#endif
}
/* ------------------------------------------------------------------------- */
ulong ide_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
{
ulong n = 0;
unsigned char c;
unsigned char pwrsave=0; /* power save */
#ifdef CONFIG_LBA48
unsigned char lba48 = 0;
if (blknr & 0x0000fffff0000000ULL) {
/* more than 28 bits used, use 48bit mode */
lba48 = 1;
}
#endif
debug ("ide_read dev %d start %LX, blocks %lX buffer at %lX\n",
device, blknr, blkcnt, (ulong)buffer);
ide_led (DEVICE_LED(device), 1); /* LED on */
/* Select device
*/
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
c = ide_wait (device, IDE_TIME_OUT);
if (c & ATA_STAT_BUSY) {
printf ("IDE read: device %d not ready\n", device);
goto IDE_READ_E;
}
/* first check if the drive is in Powersaving mode, if yes,
* increase the timeout value */
ide_outb (device, ATA_COMMAND, ATA_CMD_CHK_PWR);
udelay (50);
c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
if (c & ATA_STAT_BUSY) {
printf ("IDE read: device %d not ready\n", device);
goto IDE_READ_E;
}
if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
printf ("No Powersaving mode %X\n", c);
} else {
c = ide_inb(device,ATA_SECT_CNT);
debug ("Powersaving %02X\n",c);
if(c==0)
pwrsave=1;
}
while (blkcnt-- > 0) {
c = ide_wait (device, IDE_TIME_OUT);
if (c & ATA_STAT_BUSY) {
printf ("IDE read: device %d not ready\n", device);
break;
}
#ifdef CONFIG_LBA48
if (lba48) {
/* write high bits */
ide_outb (device, ATA_SECT_CNT, 0);
ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
#ifdef CONFIG_SYS_64BIT_LBA
ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
#else
ide_outb (device, ATA_LBA_MID, 0);
ide_outb (device, ATA_LBA_HIGH, 0);
#endif
}
#endif
ide_outb (device, ATA_SECT_CNT, 1);
ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
#ifdef CONFIG_LBA48
if (lba48) {
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
ide_outb (device, ATA_COMMAND, ATA_CMD_READ_EXT);
} else
#endif
{
ide_outb (device, ATA_DEV_HD, ATA_LBA |
ATA_DEVICE(device) |
((blknr >> 24) & 0xF) );
ide_outb (device, ATA_COMMAND, ATA_CMD_READ);
}
udelay (50);
if(pwrsave) {
c = ide_wait (device, IDE_SPIN_UP_TIME_OUT); /* may take up to 4 sec */
pwrsave=0;
} else {
c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
}
if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
#if defined(CONFIG_SYS_64BIT_LBA)
printf ("Error (no IRQ) dev %d blk %Ld: status 0x%02x\n",
device, blknr, c);
#else
printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
device, (ulong)blknr, c);
#endif
break;
}
input_data (device, buffer, ATA_SECTORWORDS);
(void) ide_inb (device, ATA_STATUS); /* clear IRQ */
++n;
++blknr;
buffer += ATA_BLOCKSIZE;
}
IDE_READ_E:
ide_led (DEVICE_LED(device), 0); /* LED off */
return (n);
}
/* ------------------------------------------------------------------------- */
ulong ide_write (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
{
ulong n = 0;
unsigned char c;
#ifdef CONFIG_LBA48
unsigned char lba48 = 0;
if (blknr & 0x0000fffff0000000ULL) {
/* more than 28 bits used, use 48bit mode */
lba48 = 1;
}
#endif
ide_led (DEVICE_LED(device), 1); /* LED on */
/* Select device
*/
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
while (blkcnt-- > 0) {
c = ide_wait (device, IDE_TIME_OUT);
if (c & ATA_STAT_BUSY) {
printf ("IDE read: device %d not ready\n", device);
goto WR_OUT;
}
#ifdef CONFIG_LBA48
if (lba48) {
/* write high bits */
ide_outb (device, ATA_SECT_CNT, 0);
ide_outb (device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
#ifdef CONFIG_SYS_64BIT_LBA
ide_outb (device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
ide_outb (device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
#else
ide_outb (device, ATA_LBA_MID, 0);
ide_outb (device, ATA_LBA_HIGH, 0);
#endif
}
#endif
ide_outb (device, ATA_SECT_CNT, 1);
ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
#ifdef CONFIG_LBA48
if (lba48) {
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) );
ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE_EXT);
} else
#endif
{
ide_outb (device, ATA_DEV_HD, ATA_LBA |
ATA_DEVICE(device) |
((blknr >> 24) & 0xF) );
ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE);
}
udelay (50);
c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */
if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) {
#if defined(CONFIG_SYS_64BIT_LBA)
printf ("Error (no IRQ) dev %d blk %Ld: status 0x%02x\n",
device, blknr, c);
#else
printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n",
device, (ulong)blknr, c);
#endif
goto WR_OUT;
}
output_data (device, buffer, ATA_SECTORWORDS);
c = ide_inb (device, ATA_STATUS); /* clear IRQ */
++n;
++blknr;
buffer += ATA_BLOCKSIZE;
}
WR_OUT:
ide_led (DEVICE_LED(device), 0); /* LED off */
return (n);
}
/* ------------------------------------------------------------------------- */
/*
* copy src to dest, skipping leading and trailing blanks and null
* terminate the string
* "len" is the size of available memory including the terminating '\0'
*/
static void ident_cpy (unsigned char *dst, unsigned char *src, unsigned int len)
{
unsigned char *end, *last;
last = dst;
end = src + len - 1;
/* reserve space for '\0' */
if (len < 2)
goto OUT;
/* skip leading white space */
while ((*src) && (src<end) && (*src==' '))
++src;
/* copy string, omitting trailing white space */
while ((*src) && (src<end)) {
*dst++ = *src;
if (*src++ != ' ')
last = dst;
}
OUT:
*last = '\0';
}
/* ------------------------------------------------------------------------- */
/*
* Wait until Busy bit is off, or timeout (in ms)
* Return last status
*/
static uchar ide_wait (int dev, ulong t)
{
ulong delay = 10 * t; /* poll every 100 us */
uchar c;
while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
udelay (100);
if (delay-- == 0) {
break;
}
}
return (c);
}
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_IDE_RESET
extern void ide_set_reset(int idereset);
static void ide_reset (void)
{
#if defined(CONFIG_SYS_PB_12V_ENABLE) || defined(CONFIG_SYS_PB_IDE_MOTOR)
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
#endif
int i;
curr_device = -1;
for (i=0; i<CONFIG_SYS_IDE_MAXBUS; ++i)
ide_bus_ok[i] = 0;
for (i=0; i<CONFIG_SYS_IDE_MAXDEVICE; ++i)
ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
ide_set_reset (1); /* assert reset */
/* the reset signal shall be asserted for et least 25 us */
udelay(25);
WATCHDOG_RESET();
#ifdef CONFIG_SYS_PB_12V_ENABLE
immr->im_cpm.cp_pbdat &= ~(CONFIG_SYS_PB_12V_ENABLE); /* 12V Enable output OFF */
immr->im_cpm.cp_pbpar &= ~(CONFIG_SYS_PB_12V_ENABLE);
immr->im_cpm.cp_pbodr &= ~(CONFIG_SYS_PB_12V_ENABLE);
immr->im_cpm.cp_pbdir |= CONFIG_SYS_PB_12V_ENABLE;
/* wait 500 ms for the voltage to stabilize
*/
for (i=0; i<500; ++i) {
udelay (1000);
}
immr->im_cpm.cp_pbdat |= CONFIG_SYS_PB_12V_ENABLE; /* 12V Enable output ON */
#endif /* CONFIG_SYS_PB_12V_ENABLE */
#ifdef CONFIG_SYS_PB_IDE_MOTOR
/* configure IDE Motor voltage monitor pin as input */
immr->im_cpm.cp_pbpar &= ~(CONFIG_SYS_PB_IDE_MOTOR);
immr->im_cpm.cp_pbodr &= ~(CONFIG_SYS_PB_IDE_MOTOR);
immr->im_cpm.cp_pbdir &= ~(CONFIG_SYS_PB_IDE_MOTOR);
/* wait up to 1 s for the motor voltage to stabilize
*/
for (i=0; i<1000; ++i) {
if ((immr->im_cpm.cp_pbdat & CONFIG_SYS_PB_IDE_MOTOR) != 0) {
break;
}
udelay (1000);
}
if (i == 1000) { /* Timeout */
printf ("\nWarning: 5V for IDE Motor missing\n");
# ifdef CONFIG_STATUS_LED
# ifdef STATUS_LED_YELLOW
status_led_set (STATUS_LED_YELLOW, STATUS_LED_ON );
# endif
# ifdef STATUS_LED_GREEN
status_led_set (STATUS_LED_GREEN, STATUS_LED_OFF);
# endif
# endif /* CONFIG_STATUS_LED */
}
#endif /* CONFIG_SYS_PB_IDE_MOTOR */
WATCHDOG_RESET();
/* de-assert RESET signal */
ide_set_reset(0);
/* wait 250 ms */
for (i=0; i<250; ++i) {
udelay (1000);
}
}
#endif /* CONFIG_IDE_RESET */
/* ------------------------------------------------------------------------- */
#if defined(CONFIG_IDE_LED) && \
!defined(CONFIG_CPC45) && \
!defined(CONFIG_KUP4K) && \
!defined(CONFIG_KUP4X)
static uchar led_buffer = 0; /* Buffer for current LED status */
static void ide_led (uchar led, uchar status)
{
uchar *led_port = LED_PORT;
if (status) { /* switch LED on */
led_buffer |= led;
} else { /* switch LED off */
led_buffer &= ~led;
}
*led_port = led_buffer;
}
#endif /* CONFIG_IDE_LED */
#if defined(CONFIG_OF_IDE_FIXUP)
int ide_device_present(int dev)
{
if (dev >= CONFIG_SYS_IDE_MAXBUS)
return 0;
return (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1);
}
#endif
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_ATAPI
/****************************************************************************
* ATAPI Support
*/
#if defined(CONFIG_IDE_SWAP_IO)
/* since ATAPI may use commands with not 4 bytes alligned length
* we have our own transfer functions, 2 bytes alligned */
static void
output_data_shorts(int dev, ushort *sect_buf, int shorts)
{
#if defined(CONFIG_CPC45)
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
while (shorts--) {
EIEIO;
*pbuf_even = *dbuf++;
EIEIO;
*pbuf_odd = *dbuf++;
}
#else
ushort *dbuf;
volatile ushort *pbuf;
pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
dbuf = (ushort *)sect_buf;
debug ("in output data shorts base for read is %lx\n", (unsigned long) pbuf);
while (shorts--) {
EIEIO;
*pbuf = *dbuf++;
}
#endif
}
static void
input_data_shorts(int dev, ushort *sect_buf, int shorts)
{
#if defined(CONFIG_CPC45)
uchar *dbuf;
volatile uchar *pbuf_even;
volatile uchar *pbuf_odd;
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
while (shorts--) {
EIEIO;
*dbuf++ = *pbuf_even;
EIEIO;
*dbuf++ = *pbuf_odd;
}
#else
ushort *dbuf;
volatile ushort *pbuf;
pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
dbuf = (ushort *)sect_buf;
debug("in input data shorts base for read is %lx\n", (unsigned long) pbuf);
while (shorts--) {
EIEIO;
*dbuf++ = *pbuf;
}
#endif
}
#else /* ! CONFIG_IDE_SWAP_IO */
static void
output_data_shorts(int dev, ushort *sect_buf, int shorts)
{
outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
}
static void
input_data_shorts(int dev, ushort *sect_buf, int shorts)
{
insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
}
#endif /* CONFIG_IDE_SWAP_IO */
/*
* Wait until (Status & mask) == res, or timeout (in ms)
* Return last status
* This is used since some ATAPI CD ROMs clears their Busy Bit first
* and then they set their DRQ Bit
*/
static uchar atapi_wait_mask (int dev, ulong t,uchar mask, uchar res)
{
ulong delay = 10 * t; /* poll every 100 us */
uchar c;
c = ide_inb(dev,ATA_DEV_CTL); /* prevents to read the status before valid */
while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) {
/* break if error occurs (doesn't make sense to wait more) */
if((c & ATA_STAT_ERR)==ATA_STAT_ERR)
break;
udelay (100);
if (delay-- == 0) {
break;
}
}
return (c);
}
/*
* issue an atapi command
*/
unsigned char atapi_issue(int device,unsigned char* ccb,int ccblen, unsigned char * buffer,int buflen)
{
unsigned char c,err,mask,res;
int n;
ide_led (DEVICE_LED(device), 1); /* LED on */
/* Select device
*/
mask = ATA_STAT_BUSY|ATA_STAT_DRQ;
res = 0;
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
if ((c & mask) != res) {
printf ("ATAPI_ISSUE: device %d not ready status %X\n", device,c);
err=0xFF;
goto AI_OUT;
}
/* write taskfile */
ide_outb (device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
ide_outb (device, ATA_SECT_CNT, 0);
ide_outb (device, ATA_SECT_NUM, 0);
ide_outb (device, ATA_CYL_LOW, (unsigned char)(buflen & 0xFF));
ide_outb (device, ATA_CYL_HIGH, (unsigned char)((buflen>>8) & 0xFF));
ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
ide_outb (device, ATA_COMMAND, ATAPI_CMD_PACKET);
udelay (50);
mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
res = ATA_STAT_DRQ;
c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
printf ("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",device,c);
err=0xFF;
goto AI_OUT;
}
output_data_shorts (device, (unsigned short *)ccb,ccblen/2); /* write command block */
/* ATAPI Command written wait for completition */
udelay (5000); /* device must set bsy */
mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR;
/* if no data wait for DRQ = 0 BSY = 0
* if data wait for DRQ = 1 BSY = 0 */
res=0;
if(buflen)
res = ATA_STAT_DRQ;
c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
if ((c & mask) != res ) {
if (c & ATA_STAT_ERR) {
err=(ide_inb(device,ATA_ERROR_REG))>>4;
debug ("atapi_issue 1 returned sense key %X status %02X\n",err,c);
} else {
printf ("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", ccb[0],c);
err=0xFF;
}
goto AI_OUT;
}
n=ide_inb(device, ATA_CYL_HIGH);
n<<=8;
n+=ide_inb(device, ATA_CYL_LOW);
if(n>buflen) {
printf("ERROR, transfer bytes %d requested only %d\n",n,buflen);
err=0xff;
goto AI_OUT;
}
if((n==0)&&(buflen<0)) {
printf("ERROR, transfer bytes %d requested %d\n",n,buflen);
err=0xff;
goto AI_OUT;
}
if(n!=buflen) {
debug ("WARNING, transfer bytes %d not equal with requested %d\n",n,buflen);
}
if(n!=0) { /* data transfer */
debug ("ATAPI_ISSUE: %d Bytes to transfer\n",n);
/* we transfer shorts */
n>>=1;
/* ok now decide if it is an in or output */
if ((ide_inb(device, ATA_SECT_CNT)&0x02)==0) {
debug ("Write to device\n");
output_data_shorts(device,(unsigned short *)buffer,n);
} else {
debug ("Read from device @ %p shorts %d\n",buffer,n);
input_data_shorts(device,(unsigned short *)buffer,n);
}
}
udelay(5000); /* seems that some CD ROMs need this... */
mask = ATA_STAT_BUSY|ATA_STAT_ERR;
res=0;
c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res);
if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
err=(ide_inb(device,ATA_ERROR_REG) >> 4);
debug ("atapi_issue 2 returned sense key %X status %X\n",err,c);
} else {
err = 0;
}
AI_OUT:
ide_led (DEVICE_LED(device), 0); /* LED off */
return (err);
}
/*
* sending the command to atapi_issue. If an status other than good
* returns, an request_sense will be issued
*/
#define ATAPI_DRIVE_NOT_READY 100
#define ATAPI_UNIT_ATTN 10
unsigned char atapi_issue_autoreq (int device,
unsigned char* ccb,
int ccblen,
unsigned char *buffer,
int buflen)
{
unsigned char sense_data[18],sense_ccb[12];
unsigned char res,key,asc,ascq;
int notready,unitattn;
unitattn=ATAPI_UNIT_ATTN;
notready=ATAPI_DRIVE_NOT_READY;
retry:
res= atapi_issue(device,ccb,ccblen,buffer,buflen);
if (res==0)
return (0); /* Ok */
if (res==0xFF)
return (0xFF); /* error */
debug ("(auto_req)atapi_issue returned sense key %X\n",res);
memset(sense_ccb,0,sizeof(sense_ccb));
memset(sense_data,0,sizeof(sense_data));
sense_ccb[0]=ATAPI_CMD_REQ_SENSE;
sense_ccb[4]=18; /* allocation Length */
res=atapi_issue(device,sense_ccb,12,sense_data,18);
key=(sense_data[2]&0xF);
asc=(sense_data[12]);
ascq=(sense_data[13]);
debug ("ATAPI_CMD_REQ_SENSE returned %x\n",res);
debug (" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
sense_data[0],
key,
asc,
ascq);
if((key==0))
return 0; /* ok device ready */
if((key==6)|| (asc==0x29) || (asc==0x28)) { /* Unit Attention */
if(unitattn-->0) {
udelay(200*1000);
goto retry;
}
printf("Unit Attention, tried %d\n",ATAPI_UNIT_ATTN);
goto error;
}
if((asc==0x4) && (ascq==0x1)) { /* not ready, but will be ready soon */
if (notready-->0) {
udelay(200*1000);
goto retry;
}
printf("Drive not ready, tried %d times\n",ATAPI_DRIVE_NOT_READY);
goto error;
}
if(asc==0x3a) {
debug ("Media not present\n");
goto error;
}
printf ("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
error:
debug ("ERROR Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq);
return (0xFF);
}
static void atapi_inquiry(block_dev_desc_t * dev_desc)
{
unsigned char ccb[12]; /* Command descriptor block */
unsigned char iobuf[64]; /* temp buf */
unsigned char c;
int device;
device=dev_desc->dev;
dev_desc->type=DEV_TYPE_UNKNOWN; /* not yet valid */
dev_desc->block_read=atapi_read;
memset(ccb,0,sizeof(ccb));
memset(iobuf,0,sizeof(iobuf));
ccb[0]=ATAPI_CMD_INQUIRY;
ccb[4]=40; /* allocation Legnth */
c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,40);
debug ("ATAPI_CMD_INQUIRY returned %x\n",c);
if (c!=0)
return;
/* copy device ident strings */
ident_cpy((unsigned char*)dev_desc->vendor,&iobuf[8],8);
ident_cpy((unsigned char*)dev_desc->product,&iobuf[16],16);
ident_cpy((unsigned char*)dev_desc->revision,&iobuf[32],5);
dev_desc->lun=0;
dev_desc->lba=0;
dev_desc->blksz=0;
dev_desc->type=iobuf[0] & 0x1f;
if ((iobuf[1]&0x80)==0x80)
dev_desc->removable = 1;
else
dev_desc->removable = 0;
memset(ccb,0,sizeof(ccb));
memset(iobuf,0,sizeof(iobuf));
ccb[0]=ATAPI_CMD_START_STOP;
ccb[4]=0x03; /* start */
c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
debug ("ATAPI_CMD_START_STOP returned %x\n",c);
if (c!=0)
return;
memset(ccb,0,sizeof(ccb));
memset(iobuf,0,sizeof(iobuf));
c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0);
debug ("ATAPI_CMD_UNIT_TEST_READY returned %x\n",c);
if (c!=0)
return;
memset(ccb,0,sizeof(ccb));
memset(iobuf,0,sizeof(iobuf));
ccb[0]=ATAPI_CMD_READ_CAP;
c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,8);
debug ("ATAPI_CMD_READ_CAP returned %x\n",c);
if (c!=0)
return;
debug ("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
iobuf[0],iobuf[1],iobuf[2],iobuf[3],
iobuf[4],iobuf[5],iobuf[6],iobuf[7]);
dev_desc->lba =((unsigned long)iobuf[0]<<24) +
((unsigned long)iobuf[1]<<16) +
((unsigned long)iobuf[2]<< 8) +
((unsigned long)iobuf[3]);
dev_desc->blksz=((unsigned long)iobuf[4]<<24) +
((unsigned long)iobuf[5]<<16) +
((unsigned long)iobuf[6]<< 8) +
((unsigned long)iobuf[7]);
#ifdef CONFIG_LBA48
dev_desc->lba48 = 0; /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
#endif
return;
}
/*
* atapi_read:
* we transfer only one block per command, since the multiple DRQ per
* command is not yet implemented
*/
#define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
#define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
#define ATAPI_READ_MAX_BLOCK ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE /* max blocks */
ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer)
{
ulong n = 0;
unsigned char ccb[12]; /* Command descriptor block */
ulong cnt;
debug ("atapi_read dev %d start %lX, blocks %lX buffer at %lX\n",
device, blknr, blkcnt, (ulong)buffer);
do {
if (blkcnt>ATAPI_READ_MAX_BLOCK) {
cnt=ATAPI_READ_MAX_BLOCK;
} else {
cnt=blkcnt;
}
ccb[0]=ATAPI_CMD_READ_12;
ccb[1]=0; /* reserved */
ccb[2]=(unsigned char) (blknr>>24) & 0xFF; /* MSB Block */
ccb[3]=(unsigned char) (blknr>>16) & 0xFF; /* */
ccb[4]=(unsigned char) (blknr>> 8) & 0xFF;
ccb[5]=(unsigned char) blknr & 0xFF; /* LSB Block */
ccb[6]=(unsigned char) (cnt >>24) & 0xFF; /* MSB Block count */
ccb[7]=(unsigned char) (cnt >>16) & 0xFF;
ccb[8]=(unsigned char) (cnt >> 8) & 0xFF;
ccb[9]=(unsigned char) cnt & 0xFF; /* LSB Block */
ccb[10]=0; /* reserved */
ccb[11]=0; /* reserved */
if (atapi_issue_autoreq(device,ccb,12,
(unsigned char *)buffer,
cnt*ATAPI_READ_BLOCK_SIZE) == 0xFF) {
return (n);
}
n+=cnt;
blkcnt-=cnt;
blknr+=cnt;
buffer+=(cnt*ATAPI_READ_BLOCK_SIZE);
} while (blkcnt > 0);
return (n);
}
/* ------------------------------------------------------------------------- */
#endif /* CONFIG_ATAPI */
U_BOOT_CMD(
ide, 5, 1, do_ide,
"IDE sub-system",
"reset - reset IDE controller\n"
"ide info - show available IDE devices\n"
"ide device [dev] - show or set current device\n"
"ide part [dev] - print partition table of one or all IDE devices\n"
"ide read addr blk# cnt\n"
"ide write addr blk# cnt - read/write `cnt'"
" blocks starting at block `blk#'\n"
" to/from memory address `addr'"
);
U_BOOT_CMD(
diskboot, 3, 1, do_diskboot,
"boot from IDE device",
"loadAddr dev:part"
);