u-boot/cmd/pcmcia.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

341 lines
7.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
********************************************************************
*
* Lots of code copied from:
*
* m8xx_pcmcia.c - Linux PCMCIA socket driver for the mpc8xx series.
* (C) 1999-2000 Magnus Damm <damm@bitsmart.com>
*
* "The ExCA standard specifies that socket controllers should provide
* two IO and five memory windows per socket, which can be independently
* configured and positioned in the host address space and mapped to
* arbitrary segments of card address space. " - David A Hinds. 1999
*
* This controller does _not_ meet the ExCA standard.
*
* m8xx pcmcia controller brief info:
* + 8 windows (attrib, mem, i/o)
* + up to two slots (SLOT_A and SLOT_B)
* + inputpins, outputpins, event and mask registers.
* - no offset register. sigh.
*
* Because of the lacking offset register we must map the whole card.
* We assign each memory window PCMCIA_MEM_WIN_SIZE address space.
* Make sure there is (PCMCIA_MEM_WIN_SIZE * PCMCIA_MEM_WIN_NO
* * PCMCIA_SOCKETS_NO) bytes at PCMCIA_MEM_WIN_BASE.
* The i/o windows are dynamically allocated at PCMCIA_IO_WIN_BASE.
* They are maximum 64KByte each...
*/
/* #define DEBUG 1 */
/*
* PCMCIA support
*/
#include <common.h>
#include <command.h>
#include <config.h>
#include <pcmcia.h>
#include <asm/io.h>
/* -------------------------------------------------------------------- */
#if defined(CONFIG_CMD_PCMCIA)
extern int pcmcia_on (void);
extern int pcmcia_off (void);
int do_pinit (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = 0;
if (argc != 2) {
printf ("Usage: pinit {on | off}\n");
return 1;
}
if (strcmp(argv[1],"on") == 0) {
rcode = pcmcia_on ();
} else if (strcmp(argv[1],"off") == 0) {
rcode = pcmcia_off ();
} else {
printf ("Usage: pinit {on | off}\n");
return 1;
}
return rcode;
}
U_BOOT_CMD(
pinit, 2, 0, do_pinit,
"PCMCIA sub-system",
"on - power on PCMCIA socket\n"
"pinit off - power off PCMCIA socket"
);
#endif
/* -------------------------------------------------------------------- */
#undef CHECK_IDE_DEVICE
#if defined(CONFIG_PXA_PCMCIA)
#define CHECK_IDE_DEVICE
#endif
#ifdef CHECK_IDE_DEVICE
int ide_devices_found;
static uchar *known_cards[] = {
(uchar *)"ARGOSY PnPIDE D5",
NULL
};
#define MAX_TUPEL_SZ 512
#define MAX_FEATURES 4
#define MAX_IDENT_CHARS 64
#define MAX_IDENT_FIELDS 4
#define indent "\t "
static void print_funcid (int func)
{
puts (indent);
switch (func) {
case CISTPL_FUNCID_MULTI:
puts (" Multi-Function");
break;
case CISTPL_FUNCID_MEMORY:
puts (" Memory");
break;
case CISTPL_FUNCID_SERIAL:
puts (" Serial Port");
break;
case CISTPL_FUNCID_PARALLEL:
puts (" Parallel Port");
break;
case CISTPL_FUNCID_FIXED:
puts (" Fixed Disk");
break;
case CISTPL_FUNCID_VIDEO:
puts (" Video Adapter");
break;
case CISTPL_FUNCID_NETWORK:
puts (" Network Adapter");
break;
case CISTPL_FUNCID_AIMS:
puts (" AIMS Card");
break;
case CISTPL_FUNCID_SCSI:
puts (" SCSI Adapter");
break;
default:
puts (" Unknown");
break;
}
puts (" Card\n");
}
static void print_fixed (volatile uchar *p)
{
if (p == NULL)
return;
puts(indent);
switch (*p) {
case CISTPL_FUNCE_IDE_IFACE:
{ uchar iface = *(p+2);
puts ((iface == CISTPL_IDE_INTERFACE) ? " IDE" : " unknown");
puts (" interface ");
break;
}
case CISTPL_FUNCE_IDE_MASTER:
case CISTPL_FUNCE_IDE_SLAVE:
{ uchar f1 = *(p+2);
uchar f2 = *(p+4);
puts ((f1 & CISTPL_IDE_SILICON) ? " [silicon]" : " [rotating]");
if (f1 & CISTPL_IDE_UNIQUE)
puts (" [unique]");
puts ((f1 & CISTPL_IDE_DUAL) ? " [dual]" : " [single]");
if (f2 & CISTPL_IDE_HAS_SLEEP)
puts (" [sleep]");
if (f2 & CISTPL_IDE_HAS_STANDBY)
puts (" [standby]");
if (f2 & CISTPL_IDE_HAS_IDLE)
puts (" [idle]");
if (f2 & CISTPL_IDE_LOW_POWER)
puts (" [low power]");
if (f2 & CISTPL_IDE_REG_INHIBIT)
puts (" [reg inhibit]");
if (f2 & CISTPL_IDE_HAS_INDEX)
puts (" [index]");
if (f2 & CISTPL_IDE_IOIS16)
puts (" [IOis16]");
break;
}
}
putc ('\n');
}
static int identify (volatile uchar *p)
{
uchar id_str[MAX_IDENT_CHARS];
uchar data;
uchar *t;
uchar **card;
int i, done;
if (p == NULL)
return (0); /* Don't know */
t = id_str;
done =0;
for (i=0; i<=4 && !done; ++i, p+=2) {
while ((data = *p) != '\0') {
if (data == 0xFF) {
done = 1;
break;
}
*t++ = data;
if (t == &id_str[MAX_IDENT_CHARS-1]) {
done = 1;
break;
}
p += 2;
}
if (!done)
*t++ = ' ';
}
*t = '\0';
while (--t > id_str) {
if (*t == ' ')
*t = '\0';
else
break;
}
puts ((char *)id_str);
putc ('\n');
for (card=known_cards; *card; ++card) {
debug ("## Compare against \"%s\"\n", *card);
if (strcmp((char *)*card, (char *)id_str) == 0) { /* found! */
debug ("## CARD FOUND ##\n");
return (1);
}
}
return (0); /* don't know */
}
int check_ide_device (int slot)
{
volatile uchar *ident = NULL;
volatile uchar *feature_p[MAX_FEATURES];
volatile uchar *p, *start, *addr;
int n_features = 0;
uchar func_id = ~0;
uchar code, len;
ushort config_base = 0;
int found = 0;
int i;
addr = (volatile uchar *)(CONFIG_SYS_PCMCIA_MEM_ADDR +
CONFIG_SYS_PCMCIA_MEM_SIZE * (slot * 4));
debug ("PCMCIA MEM: %08lX\n", (ulong)addr);
start = p = (volatile uchar *) addr;
while ((p - start) < MAX_TUPEL_SZ) {
code = *p; p += 2;
if (code == 0xFF) { /* End of chain */
break;
}
len = *p; p += 2;
#if defined(DEBUG) && (DEBUG > 1)
{ volatile uchar *q = p;
printf ("\nTuple code %02x length %d\n\tData:",
code, len);
for (i = 0; i < len; ++i) {
printf (" %02x", *q);
q+= 2;
}
}
#endif /* DEBUG */
switch (code) {
case CISTPL_VERS_1:
ident = p + 4;
break;
case CISTPL_FUNCID:
/* Fix for broken SanDisk which may have 0x80 bit set */
func_id = *p & 0x7F;
break;
case CISTPL_FUNCE:
if (n_features < MAX_FEATURES)
feature_p[n_features++] = p;
break;
case CISTPL_CONFIG:
config_base = (*(p+6) << 8) + (*(p+4));
debug ("\n## Config_base = %04x ###\n", config_base);
default:
break;
}
p += 2 * len;
}
found = identify (ident);
if (func_id != ((uchar)~0)) {
print_funcid (func_id);
if (func_id == CISTPL_FUNCID_FIXED)
found = 1;
else
return (1); /* no disk drive */
}
for (i=0; i<n_features; ++i) {
print_fixed (feature_p[i]);
}
if (!found) {
printf ("unknown card type\n");
return (1);
}
ide_devices_found |= (1 << slot);
/* set I/O area in config reg -> only valid for ARGOSY D5!!! */
*((uchar *)(addr + config_base)) = 1;
#if 0
printf("\n## Config_base = %04x ###\n", config_base);
printf("Configuration Option Register: %02x @ %x\n", readb(addr + config_base), addr + config_base);
printf("Card Configuration and Status Register: %02x\n", readb(addr + config_base + 2));
printf("Pin Replacement Register Register: %02x\n", readb(addr + config_base + 4));
printf("Socket and Copy Register: %02x\n", readb(addr + config_base + 6));
#endif
return (0);
}
#endif /* CHECK_IDE_DEVICE */