/*
* (C) Copyright 2000-2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB
*
* 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
*
********************************************************************
*
* 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...
*/
#undef DEBUG /**/
/*
* PCMCIA support
*/
#include <common.h>
#include <command.h>
#include <config.h>
#include <pci.h>
#include <asm/io.h>
#include <pcmcia.h>
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && defined(CONFIG_IDE_TI_CARDBUS)
int pcmcia_on(int ide_base_bus);
static int pcmcia_off(void);
static int hardware_disable(int slot);
static int hardware_enable(int slot);
static int voltage_set(int slot, int vcc, int vpp);
static void print_funcid(int func);
static void print_fixed(volatile uchar *p);
static int identify(volatile uchar *p);
static int check_ide_device(int slot, int ide_base_bus);
/* ------------------------------------------------------------------------- */
const char *indent = "\t ";
/* ------------------------------------------------------------------------- */
int do_pinit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
#ifndef CFG_FISRT_PCMCIA_BUS
# define CFG_FISRT_PCMCIA_BUS 0
#endif
int rcode = 0;
if (argc != 2) {
printf ("Usage: pinit {on | off}\n");
return 1;
}
if (strcmp(argv[1],"on") == 0) {
rcode = pcmcia_on(CFG_FISRT_PCMCIA_BUS);
} else if (strcmp(argv[1],"off") == 0) {
rcode = pcmcia_off();
} else {
printf ("Usage: pinit {on | off}\n");
return 1;
}
return rcode;
}
/* ------------------------------------------------------------------------- */
static struct pci_device_id supported[] = {
{ PCI_VENDOR_ID_TI, 0xac50 }, /* Ti PCI1410A */
{ PCI_VENDOR_ID_TI, 0xac56 }, /* Ti PCI1510 */
{ }
};
static pci_dev_t devbusfn;
static u32 socket_base;
static u32 pcmcia_cis_ptr;
int pcmcia_on(int ide_base_bus)
{
u16 dev_id;
u32 socket_status;
int slot = 0;
int cis_len;
u16 io_base;
u16 io_len;
/*
* Find the CardBus PCI device(s).
*/
if ((devbusfn = pci_find_devices(supported, 0)) < 0) {
printf("Ti CardBus: not found\n");
return 1;
}
pci_read_config_word(devbusfn, PCI_DEVICE_ID, &dev_id);
if (dev_id == 0xac56) {
debug("Enable PCMCIA Ti PCI1510\n");
} else {
debug("Enable PCMCIA Ti PCI1410A\n");
}
pcmcia_cis_ptr = CFG_PCMCIA_CIS_WIN;
cis_len = CFG_PCMCIA_CIS_WIN_SIZE;
io_base = CFG_PCMCIA_IO_WIN;
io_len = CFG_PCMCIA_IO_WIN_SIZE;
/*
* Setup the PCI device.
*/
pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &socket_base);
socket_base &= ~0xf;
socket_status = readl(socket_base+8);
if ((socket_status & 6) == 0) {
printf("Card Present: ");
switch (socket_status & 0x3c00) {
case 0x400:
printf("5V ");
break;
case 0x800:
printf("3.3V ");
break;
case 0xc00:
printf("3.3/5V ");
break;
default:
printf("unsupported Vcc ");
break;
}
switch (socket_status & 0x30) {
case 0x10:
printf("16bit PC-Card\n");
break;
case 0x20:
printf("32bit CardBus Card\n");
break;
default:
printf("8bit PC-Card\n");
break;
}
}
writeb(0x41, socket_base + 0x806); /* Enable I/O window 0 and memory window 0 */
writeb(0x0e, socket_base + 0x807); /* Reset I/O window options */
/* Careful: the linux yenta driver do not seem to reset the offset
* in the i/o windows, so leaving them non-zero is a problem */
writeb(io_base & 0xff, socket_base + 0x808); /* I/O window 0 base address */
writeb(io_base>>8, socket_base + 0x809);
writeb((io_base + io_len - 1) & 0xff, socket_base + 0x80a); /* I/O window 0 end address */
writeb((io_base + io_len - 1)>>8, socket_base + 0x80b);
writeb(0x00, socket_base + 0x836); /* I/O window 0 offset address 0x000 */
writeb(0x00, socket_base + 0x837);
writeb((pcmcia_cis_ptr&0x000ff000) >> 12,
socket_base + 0x810); /* Memory window 0 start address bits 19-12 */
writeb((pcmcia_cis_ptr&0x00f00000) >> 20,
socket_base + 0x811); /* Memory window 0 start address bits 23-20 */
writeb(((pcmcia_cis_ptr+cis_len-1) & 0x000ff000) >> 12,
socket_base + 0x812); /* Memory window 0 end address bits 19-12*/
writeb(((pcmcia_cis_ptr+cis_len-1) & 0x00f00000) >> 20,
socket_base + 0x813); /* Memory window 0 end address bits 23-20*/
writeb(0x00, socket_base + 0x814); /* Memory window 0 offset bits 19-12 */
writeb(0x40, socket_base + 0x815); /* Memory window 0 offset bits 23-20 and
* options (read/write, attribute access) */
writeb(0x00, socket_base + 0x816); /* ExCA card-detect and general control */
writeb(0x00, socket_base + 0x81e); /* ExCA global control (interrupt modes) */
writeb((pcmcia_cis_ptr & 0xff000000) >> 24,
socket_base + 0x840); /* Memory window address bits 31-24 */
/* turn off voltage */
if (voltage_set(slot, 0, 0)) {
return 1;
}
/* Enable external hardware */
if (hardware_enable(slot)) {
return 1;
}
if (check_ide_device(slot, ide_base_bus)) {
return 1;
}
return 0;
}
/* ------------------------------------------------------------------------- */
static int pcmcia_off (void)
{
int slot = 0;
writeb(0x00, socket_base + 0x806); /* disable all I/O and memory windows */
writeb(0x00, socket_base + 0x808); /* I/O window 0 base address */
writeb(0x00, socket_base + 0x809);
writeb(0x00, socket_base + 0x80a); /* I/O window 0 end address */
writeb(0x00, socket_base + 0x80b);
writeb(0x00, socket_base + 0x836); /* I/O window 0 offset address */
writeb(0x00, socket_base + 0x837);
writeb(0x00, socket_base + 0x80c); /* I/O window 1 base address */
writeb(0x00, socket_base + 0x80d);
writeb(0x00, socket_base + 0x80e); /* I/O window 1 end address */
writeb(0x00, socket_base + 0x80f);
writeb(0x00, socket_base + 0x838); /* I/O window 1 offset address */
writeb(0x00, socket_base + 0x839);
writeb(0x00, socket_base + 0x810); /* Memory window 0 start address */
writeb(0x00, socket_base + 0x811);
writeb(0x00, socket_base + 0x812); /* Memory window 0 end address */
writeb(0x00, socket_base + 0x813);
writeb(0x00, socket_base + 0x814); /* Memory window 0 offset */
writeb(0x00, socket_base + 0x815);
writeb(0xc0, socket_base + 0x840); /* Memory window 0 page address */
/* turn off voltage */
voltage_set(slot, 0, 0);
/* disable external hardware */
printf ("Shutdown and Poweroff Ti PCI1410A\n");
hardware_disable(slot);
return 0;
}
/* ------------------------------------------------------------------------- */
#define MAX_TUPEL_SZ 512
#define MAX_FEATURES 4
int ide_devices_found;
static int check_ide_device(int slot, int ide_base_bus)
{
volatile uchar *ident = NULL;
volatile uchar *feature_p[MAX_FEATURES];
volatile uchar *p, *start;
int n_features = 0;
uchar func_id = ~0;
uchar code, len;
ushort config_base = 0;
int found = 0;
int i;
u32 socket_status;
debug ("PCMCIA MEM: %08X\n", pcmcia_cis_ptr);
socket_status = readl(socket_base+8);
if ((socket_status & 6) != 0 || (socket_status & 0x20) != 0) {
printf("no card or CardBus card\n");
return 1;
}
start = p = (volatile uchar *) pcmcia_cis_ptr;
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;
}
/* select config index 1 */
writeb(1, pcmcia_cis_ptr + config_base);
#if 0
printf("Confiuration Option Register: %02x\n", readb(pcmcia_cis_ptr + config_base));
printf("Card Confiuration and Status Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 2));
printf("Pin Replacement Register Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 4));
printf("Socket and Copy Register: %02x\n", readb(pcmcia_cis_ptr + config_base + 6));
#endif
ide_devices_found |= (1 << (slot+ide_base_bus));
return 0;
}
static int voltage_set(int slot, int vcc, int vpp)
{
u32 socket_control;
int reg=0;
switch (slot) {
case 0:
reg = socket_base + 0x10;
break;
default:
return 1;
}
socket_control = 0;
switch (vcc) {
case 50:
socket_control |= 0x20;
break;
case 33:
socket_control |= 0x30;
break;
case 0:
default:
}
switch (vpp) {
case 120:
socket_control |= 0x1;
break;
case 50:
socket_control |= 0x2;
break;
case 33:
socket_control |= 0x3;
break;
case 0:
default:
}
writel(socket_control, reg);
debug ("voltage_set: Ti PCI1410A Slot %d, Vcc=%d.%d, Vpp=%d.%d\n",
slot, vcc/10, vcc%10, vpp/10, vpp%10);
udelay(500);
return 0;
}
static int hardware_enable(int slot)
{
u32 socket_status;
u16 brg_ctrl;
int is_82365sl;
socket_status = readl(socket_base+8);
if ((socket_status & 6) == 0) {
switch (socket_status & 0x3c00) {
case 0x400:
printf("5V ");
voltage_set(slot, 50, 0);
break;
case 0x800:
voltage_set(slot, 33, 0);
break;
case 0xc00:
voltage_set(slot, 33, 0);
break;
default:
voltage_set(slot, 0, 0);
break;
}
} else {
voltage_set(slot, 0, 0);
}
pci_read_config_word(devbusfn, PCI_BRIDGE_CONTROL, &brg_ctrl);
brg_ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;
pci_write_config_word(devbusfn, PCI_BRIDGE_CONTROL, brg_ctrl);
is_82365sl = ((readb(socket_base+0x800) & 0x0f) == 2);
writeb(is_82365sl?0x90:0x98, socket_base+0x802);
writeb(0x67, socket_base+0x803);
udelay(100000);
#if 0
printf("ExCA Id %02x, Card Status %02x, Power config %02x, Interrupt Config %02x, bridge control %04x %d\n",
readb(socket_base+0x800), readb(socket_base+0x801),
readb(socket_base+0x802), readb(socket_base+0x803), brg_ctrl, is_82365sl);
#endif
return ((readb(socket_base+0x801)&0x6c)==0x6c)?0:1;
}
static int hardware_disable(int slot)
{
voltage_set(slot, 0, 0);
return 0;
}
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');
}
/* ------------------------------------------------------------------------- */
#define MAX_IDENT_CHARS 64
#define MAX_IDENT_FIELDS 4
static uchar *known_cards[] = {
"ARGOSY PnPIDE D5",
NULL
};
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(id_str);
putc('\n');
for (card=known_cards; *card; ++card) {
debug ("## Compare against \"%s\"\n", *card);
if (strcmp(*card, id_str) == 0) { /* found! */
debug ("## CARD FOUND ##\n");
return 1;
}
}
return 0; /* don't know */
}
#endif /* CONFIG_IDE_TI_CARDBUS */
