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u-boot-brain/common/cmd_pcmcia.c
wdenk 7cb22f97ee * Make CPU clock on ICA-IP board controllable by a "cpuclk" 
environment variable which can set to "100", "133", or "150". The
  CPU clock will be configured accordingly upon next reboot. Other
  values are ignored. In case of an invalid or undefined "cpuclk"
  value, the compile-time default CPU clock speed will be used.

* Enable Quad-UART on BMS2003 board (initialize the PCMCIA memory
  window that is used to access the UART registers by the Linux driver)

* Patch by Reinhard Meyer, 20 Dec 2003:
  Fix clock calculation for the MPC5200 for higher clock frequencies
  (above 2**32 / 10 = 429.5 MHz).
2003-12-27 19:24:54 +00:00

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/*
* (C) Copyright 2000-2002
* 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
*
********************************************************************
*
* 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>
#if defined(CONFIG_8xx)
#include <mpc8xx.h>
#endif
#if defined(CONFIG_LWMON)
#include <i2c.h>
#endif
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) || \
((CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD))
int pcmcia_on (void);
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int pcmcia_off (void);
#endif
#ifdef CONFIG_I82365
extern int i82365_init (void);
extern void i82365_exit (void);
#else /* ! CONFIG_I82365 */
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot);
#endif
static int hardware_enable (int slot);
static int voltage_set(int slot, int vcc, int vpp);
#ifndef CONFIG_I82365
static u_int m8xx_get_graycode(u_int size);
#endif /* CONFIG_I82365 */
#if 0
static u_int m8xx_get_speed(u_int ns, u_int is_io);
#endif
/* -------------------------------------------------------------------- */
/* look up table for pgcrx registers */
static u_int *pcmcia_pgcrx[2] = {
&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcra,
&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb,
};
#define PCMCIA_PGCRX(slot) (*pcmcia_pgcrx[slot])
#endif /* CONFIG_I82365 */
#ifdef CONFIG_IDE_8xx_PCCARD
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);
#endif /* CONFIG_IDE_8xx_PCCARD */
const char *indent = "\t ";
/* -------------------------------------------------------------------- */
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
int do_pinit (cmd_tbl_t *cmdtp, int flag, int argc, char *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;
}
#endif /* CFG_CMD_PCMCIA */
/* -------------------------------------------------------------------- */
#ifdef CONFIG_I82365
int pcmcia_on (void)
{
u_int rc;
debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
rc = i82365_init();
if (rc == 0)
{
rc = check_ide_device(0);
}
return (rc);
}
#else
#if defined(CONFIG_LWMON) || defined(CONFIG_NSCU)
# define CFG_PCMCIA_TIMING (PCMCIA_SHT(9) | PCMCIA_SST(3) | PCMCIA_SL(12))
#else
# define CFG_PCMCIA_TIMING (PCMCIA_SHT(2) | PCMCIA_SST(4) | PCMCIA_SL(9))
#endif
int pcmcia_on (void)
{
int i;
u_long reg, base;
pcmcia_win_t *win;
u_int slotbit;
u_int rc, slot;
debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
/* intialize the fixed memory windows */
win = (pcmcia_win_t *)(&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pbr0);
base = CFG_PCMCIA_MEM_ADDR;
if((reg = m8xx_get_graycode(CFG_PCMCIA_MEM_SIZE)) == -1) {
printf ("Cannot set window size to 0x%08x\n",
CFG_PCMCIA_MEM_SIZE);
return (1);
}
slotbit = PCMCIA_SLOT_x;
for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
win->br = base;
#if (PCMCIA_SOCKETS_NO == 2)
if (i == 4) /* Another slot starting from win 4 */
slotbit = (slotbit ? PCMCIA_PSLOT_A : PCMCIA_PSLOT_B);
#endif
switch (i) {
#ifdef CONFIG_IDE_8xx_PCCARD
case 4:
case 0: { /* map attribute memory */
win->or = ( PCMCIA_BSIZE_64M
| PCMCIA_PPS_8
| PCMCIA_PRS_ATTR
| slotbit
| PCMCIA_PV
| CFG_PCMCIA_TIMING );
break;
}
case 5:
case 1: { /* map I/O window for data reg */
win->or = ( PCMCIA_BSIZE_1K
| PCMCIA_PPS_16
| PCMCIA_PRS_IO
| slotbit
| PCMCIA_PV
| CFG_PCMCIA_TIMING );
break;
}
case 6:
case 2: { /* map I/O window for cmd/ctrl reg block */
win->or = ( PCMCIA_BSIZE_1K
| PCMCIA_PPS_8
| PCMCIA_PRS_IO
| slotbit
| PCMCIA_PV
| CFG_PCMCIA_TIMING );
break;
}
#endif /* CONFIG_IDE_8xx_PCCARD */
#ifdef CONFIG_BMS2003
case 3: { /* map I/O window for 4xUART data/ctrl */
win->br += 0x140000;
win->or = ( PCMCIA_BSIZE_256K
| PCMCIA_PPS_8
| PCMCIA_PRS_IO
| slotbit
| PCMCIA_PV
| CFG_PCMCIA_TIMING );
break;
}
#endif /* CONFIG_BMS2003 */
default: /* set to not valid */
win->or = 0;
break;
}
debug ("MemWin %d: PBR 0x%08lX POR %08lX\n",
i, win->br, win->or);
base += CFG_PCMCIA_MEM_SIZE;
++win;
}
for (i=0, rc=0, slot=_slot_; i<PCMCIA_SOCKETS_NO; i++, slot = !slot) {
/* turn off voltage */
if ((rc = voltage_set(slot, 0, 0)))
continue;
/* Enable external hardware */
if ((rc = hardware_enable(slot)))
continue;
#ifdef CONFIG_IDE_8xx_PCCARD
if ((rc = check_ide_device(i)))
continue;
#endif
}
return (rc);
}
#endif /* CONFIG_I82365 */
/* -------------------------------------------------------------------- */
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
#ifdef CONFIG_I82365
static int pcmcia_off (void)
{
printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
i82365_exit();
return 0;
}
#else
static int pcmcia_off (void)
{
int i;
pcmcia_win_t *win;
printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
/* clear interrupt state, and disable interrupts */
((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pscr = PCMCIA_MASK(_slot_);
((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_per &= ~PCMCIA_MASK(_slot_);
/* turn off interrupt and disable CxOE */
PCMCIA_PGCRX(_slot_) = __MY_PCMCIA_GCRX_CXOE;
/* turn off memory windows */
win = (pcmcia_win_t *)(&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pbr0);
for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
/* disable memory window */
win->or = 0;
++win;
}
/* turn off voltage */
voltage_set(_slot_, 0, 0);
/* disable external hardware */
printf ("Shutdown and Poweroff " PCMCIA_SLOT_MSG "\n");
hardware_disable(_slot_);
return 0;
}
#endif /* CONFIG_I82365 */
#endif /* CFG_CMD_PCMCIA */
/* -------------------------------------------------------------------- */
#ifdef CONFIG_IDE_8xx_PCCARD
#define MAX_TUPEL_SZ 512
#define MAX_FEATURES 4
int ide_devices_found;
static 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 *)(CFG_PCMCIA_MEM_ADDR +
CFG_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;
return (0);
}
#endif /* CONFIG_IDE_8xx_PCCARD */
/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */
/* board specific stuff: */
/* voltage_set(), hardware_enable() and hardware_disable() */
/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */
/* RPX Boards from Embedded Planet */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
/* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks.
* SYPCR is write once only, therefore must the slowest memory be faster
* than the bus monitor or we will get a machine check due to the bus timeout.
*/
#define PCMCIA_BOARD_MSG "RPX CLASSIC or RPX LITE"
#undef PCMCIA_BMT_LIMIT
#define PCMCIA_BMT_LIMIT (6*8)
static int voltage_set(int slot, int vcc, int vpp)
{
u_long reg = 0;
switch(vcc) {
case 0: break;
case 33: reg |= BCSR1_PCVCTL4; break;
case 50: reg |= BCSR1_PCVCTL5; break;
default: return 1;
}
switch(vpp) {
case 0: break;
case 33:
case 50:
if(vcc == vpp)
reg |= BCSR1_PCVCTL6;
else
return 1;
break;
case 120:
reg |= BCSR1_PCVCTL7;
default: return 1;
}
if(vcc == 120)
return 1;
/* first, turn off all power */
*((uint *)RPX_CSR_ADDR) &= ~(BCSR1_PCVCTL4 | BCSR1_PCVCTL5
| BCSR1_PCVCTL6 | BCSR1_PCVCTL7);
/* enable new powersettings */
*((uint *)RPX_CSR_ADDR) |= reg;
return 0;
}
#define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
static int hardware_enable (int slot)
{
return 0; /* No hardware to enable */
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
return 0; /* No hardware to disable */
}
#endif /* CFG_CMD_PCMCIA */
#endif /* CONFIG_RPXCLASSIC */
/* -------------------------------------------------------------------- */
/* (F)ADS Boards from Motorola */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_ADS) || defined(CONFIG_FADS)
#ifdef CONFIG_ADS
#define PCMCIA_BOARD_MSG "ADS"
#define PCMCIA_GLITCHY_CD /* My ADS board needs this */
#else
#define PCMCIA_BOARD_MSG "FADS"
#endif
static int voltage_set(int slot, int vcc, int vpp)
{
u_long reg = 0;
switch(vpp) {
case 0: reg = 0; break;
case 50: reg = 1; break;
case 120: reg = 2; break;
default: return 1;
}
switch(vcc) {
case 0: reg = 0; break;
#ifdef CONFIG_ADS
case 50: reg = BCSR1_PCCVCCON; break;
#endif
#ifdef CONFIG_FADS
case 33: reg = BCSR1_PCCVCC0 | BCSR1_PCCVCC1; break;
case 50: reg = BCSR1_PCCVCC1; break;
#endif
default: return 1;
}
/* first, turn off all power */
#ifdef CONFIG_ADS
*((uint *)BCSR1) |= BCSR1_PCCVCCON;
#endif
#ifdef CONFIG_FADS
*((uint *)BCSR1) &= ~(BCSR1_PCCVCC0 | BCSR1_PCCVCC1);
#endif
*((uint *)BCSR1) &= ~BCSR1_PCCVPP_MASK;
/* enable new powersettings */
#ifdef CONFIG_ADS
*((uint *)BCSR1) &= ~reg;
#endif
#ifdef CONFIG_FADS
*((uint *)BCSR1) |= reg;
#endif
*((uint *)BCSR1) |= reg << 20;
return 0;
}
#define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
static int hardware_enable(int slot)
{
*((uint *)BCSR1) &= ~BCSR1_PCCEN;
return 0;
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
*((uint *)BCSR1) &= ~BCSR1_PCCEN;
return 0;
}
#endif /* CFG_CMD_PCMCIA */
#endif /* (F)ADS */
/* -------------------------------------------------------------------- */
/* TQM8xxL Boards by TQ Components */
/* SC8xx Boards by SinoVee Microsystems */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx)
#if defined(CONFIG_TQM8xxL)
#define PCMCIA_BOARD_MSG "TQM8xxL"
#endif
#if defined(CONFIG_SVM_SC8xx)
#define PCMCIA_BOARD_MSG "SC8xx"
#endif
static int hardware_enable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, mask;
debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
udelay(10000);
immap = (immap_t *)CFG_IMMR;
sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/*
* Configure SIUMCR to enable PCMCIA port B
* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
*/
sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK(slot);
pcmp->pcmc_per &= ~PCMCIA_MASK(slot);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
#ifndef NSCU_OE_INV
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
#endif
PCMCIA_PGCRX(slot) = reg;
udelay(500);
#ifndef CONFIG_NSCU
/*
* Configure Port C pins for
* 5 Volts Enable and 3 Volts enable
*/
immap->im_ioport.iop_pcpar &= ~(0x0002 | 0x0004);
immap->im_ioport.iop_pcso &= ~(0x0002 | 0x0004);
/* remove all power */
immap->im_ioport.iop_pcdat &= ~(0x0002 | 0x0004);
#endif
/*
* Make sure there is a card in the slot, then configure the interface.
*/
udelay(10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__,__FUNCTION__,
&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
printf (" No Card found\n");
return (1);
}
/*
* Power On.
*/
mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
reg = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
reg,
(reg&PCMCIA_VS1(slot))?"n":"ff",
(reg&PCMCIA_VS2(slot))?"n":"ff");
#ifndef CONFIG_NSCU
if ((reg & mask) == mask) {
immap->im_ioport.iop_pcdat |= 0x0004;
puts (" 5.0V card found: ");
} else {
immap->im_ioport.iop_pcdat |= 0x0002;
puts (" 3.3V card found: ");
}
immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004);
#else
if ((reg & mask) == mask) {
puts (" 5.0V card found: ");
} else {
puts (" 3.3V card found: ");
}
#endif
#if 0
/* VCC switch error flag, PCMCIA slot INPACK_ pin */
cp->cp_pbdir &= ~(0x0020 | 0x0010);
cp->cp_pbpar &= ~(0x0020 | 0x0010);
udelay(500000);
#endif
udelay(1000);
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(slot);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
#ifndef NSCU_OE_INV
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
#else
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
#endif
PCMCIA_PGCRX(slot) = reg;
udelay(250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
volatile immap_t *immap;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
#ifndef CONFIG_NSCU
/* remove all power */
immap->im_ioport.iop_pcdat &= ~(0x0002 | 0x0004);
#endif
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
#ifndef NSCU_OE_INV
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
#endif
PCMCIA_PGCRX(slot) = reg;
udelay(10000);
return (0);
}
#endif /* CFG_CMD_PCMCIA */
#ifdef CONFIG_NSCU
static int voltage_set(int slot, int vcc, int vpp)
{
return 0;
}
#else
static int voltage_set(int slot, int vcc, int vpp)
{
volatile immap_t *immap;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("voltage_set: "
PCMCIA_BOARD_MSG
" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/*
* Disable PCMCIA buffers (isolate the interface)
* and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = PCMCIA_PGCRX(slot);
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
#ifndef NSCU_OE_INV
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
#else
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
#endif
PCMCIA_PGCRX(slot) = reg;
udelay(500);
/*
* Configure Port C pins for
* 5 Volts Enable and 3 Volts enable,
* Turn off all power
*/
debug ("PCMCIA power OFF\n");
immap->im_ioport.iop_pcpar &= ~(0x0002 | 0x0004);
immap->im_ioport.iop_pcso &= ~(0x0002 | 0x0004);
immap->im_ioport.iop_pcdat &= ~(0x0002 | 0x0004);
reg = 0;
switch(vcc) {
case 0: break;
case 33: reg |= 0x0002; break;
case 50: reg |= 0x0004; break;
default: goto done;
}
/* Checking supported voltages */
debug ("PIPR: 0x%x --> %s\n",
pcmp->pcmc_pipr,
(pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
immap->im_ioport.iop_pcdat |= reg;
immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004);
if (reg) {
debug ("PCMCIA powered at %sV\n",
(reg&0x0004) ? "5.0" : "3.3");
} else {
debug ("PCMCIA powered down\n");
}
done:
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(slot);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
#ifndef NSCU_OE_INV
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
#else
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
#endif
PCMCIA_PGCRX(slot) = reg;
udelay(500);
debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",
slot+'A');
return (0);
}
#endif
#endif /* TQM8xxL */
/* -------------------------------------------------------------------- */
/* LWMON Board */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_LWMON)
#define PCMCIA_BOARD_MSG "LWMON"
/* #define's for MAX1604 Power Switch */
#define MAX1604_OP_SUS 0x80
#define MAX1604_VCCBON 0x40
#define MAX1604_VCC_35 0x20
#define MAX1604_VCCBHIZ 0x10
#define MAX1604_VPPBON 0x08
#define MAX1604_VPPBPBPGM 0x04
#define MAX1604_VPPBHIZ 0x02
/* reserved 0x01 */
static int hardware_enable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, mask;
uchar val;
debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
/* Switch on PCMCIA port in PIC register 0x60 */
reg = pic_read (0x60);
debug ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
reg &= ~0x10;
/* reg |= 0x08; Vpp not needed */
pic_write (0x60, reg);
#ifdef DEBUG
reg = pic_read (0x60);
printf ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
#endif
udelay(10000);
immap = (immap_t *)CFG_IMMR;
sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/*
* Configure SIUMCR to enable PCMCIA port B
* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
*/
sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK(_slot_);
pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Make sure there is a card in the slot, then configure the interface.
*/
udelay(10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__,__FUNCTION__,
&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
printf (" No Card found\n");
return (1);
}
/*
* Power On.
*/
mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
reg = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
reg,
(reg&PCMCIA_VS1(slot))?"n":"ff",
(reg&PCMCIA_VS2(slot))?"n":"ff");
if ((reg & mask) == mask) {
val = 0; /* VCCB3/5 = 0 ==> use Vx = 5.0 V */
puts (" 5.0V card found: ");
} else {
val = MAX1604_VCC_35; /* VCCB3/5 = 1 ==> use Vy = 3.3 V */
puts (" 3.3V card found: ");
}
/* switch VCC on */
val |= MAX1604_OP_SUS | MAX1604_VCCBON;
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);
udelay(500000);
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
volatile immap_t *immap;
volatile pcmconf8xx_t *pcmp;
u_long reg;
uchar val;
debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/* remove all power, put output in high impedance state */
val = MAX1604_VCCBHIZ | MAX1604_VPPBHIZ;
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);
/* Configure PCMCIA General Control Register */
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
/* Switch off PCMCIA port in PIC register 0x60 */
reg = pic_read (0x60);
debug ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
reg |= 0x10;
reg &= ~0x08;
pic_write (0x60, reg);
#ifdef DEBUG
reg = pic_read (0x60);
printf ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
#endif
udelay(10000);
return (0);
}
#endif /* CFG_CMD_PCMCIA */
static int voltage_set(int slot, int vcc, int vpp)
{
volatile immap_t *immap;
volatile pcmconf8xx_t *pcmp;
u_long reg;
uchar val;
debug ("voltage_set: "
PCMCIA_BOARD_MSG
" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/*
* Disable PCMCIA buffers (isolate the interface)
* and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Turn off all power (switch to high impedance)
*/
debug ("PCMCIA power OFF\n");
val = MAX1604_VCCBHIZ | MAX1604_VPPBHIZ;
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);
val = 0;
switch(vcc) {
case 0: break;
case 33: val = MAX1604_VCC_35; break;
case 50: break;
default: goto done;
}
/* Checking supported voltages */
debug ("PIPR: 0x%x --> %s\n",
pcmp->pcmc_pipr,
(pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);
if (val) {
debug ("PCMCIA powered at %sV\n",
(val & MAX1604_VCC_35) ? "3.3" : "5.0");
} else {
debug ("PCMCIA powered down\n");
}
done:
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",
slot+'A');
return (0);
}
#endif /* LWMON */
/* -------------------------------------------------------------------- */
/* GTH board by Corelatus AB */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_GTH)
#define PCMCIA_BOARD_MSG "GTH COMPACT FLASH"
static int voltage_set (int slot, int vcc, int vpp)
{ /* Do nothing */
return 0;
}
static int hardware_enable (int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, mask;
debug ("hardware_enable: GTH Slot %c\n", 'A' + slot);
immap = (immap_t *) CFG_IMMR;
sysp = (sysconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *) (&(((immap_t *) CFG_IMMR)->im_cpm));
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK (_slot_);
pcmp->pcmc_per &= ~PCMCIA_MASK (_slot_);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX (_slot_) = reg;
udelay (500);
/*
* Make sure there is a card in the slot,
* then configure the interface.
*/
udelay (10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__, __FUNCTION__,
&(pcmp->pcmc_pipr), pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & 0x98000000) {
printf (" No Card found\n");
return (1);
}
mask = PCMCIA_VS1 (slot) | PCMCIA_VS2 (slot);
reg = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
reg,
(reg & PCMCIA_VS1 (slot)) ? "n" : "ff",
(reg & PCMCIA_VS2 (slot)) ? "n" : "ff");
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX (_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX (_slot_) = reg;
udelay (250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return 0;
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
return 0; /* No hardware to disable */
}
#endif /* CFG_CMD_PCMCIA */
#endif /* CONFIG_GTH */
/* -------------------------------------------------------------------- */
/* ICU862 Boards by Cambridge Broadband Ltd. */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_ICU862)
#define PCMCIA_BOARD_MSG "ICU862"
static void cfg_port_B (void);
static int hardware_enable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, pipr, mask;
int i;
debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
udelay(10000);
immap = (immap_t *)CFG_IMMR;
sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/* Configure Port B for TPS2205 PC-Card Power-Interface Switch */
cfg_port_B ();
/*
* Configure SIUMCR to enable PCMCIA port B
* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
*/
sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK(_slot_);
pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Make sure there is a card in the slot, then configure the interface.
*/
udelay(10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__,__FUNCTION__,
&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
printf (" No Card found\n");
return (1);
}
/*
* Power On: Set VAVCC to 3.3V or 5V, set VAVPP to Hi-Z
*/
mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
pipr = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
pipr,
(reg&PCMCIA_VS1(slot))?"n":"ff",
(reg&PCMCIA_VS2(slot))?"n":"ff");
reg = cp->cp_pbdat;
if ((pipr & mask) == mask) {
reg |= (TPS2205_VPP_PGM | TPS2205_VPP_VCC | /* VAVPP => Hi-Z */
TPS2205_VCC3); /* 3V off */
reg &= ~(TPS2205_VCC5); /* 5V on */
puts (" 5.0V card found: ");
} else {
reg |= (TPS2205_VPP_PGM | TPS2205_VPP_VCC | /* VAVPP => Hi-Z */
TPS2205_VCC5); /* 5V off */
reg &= ~(TPS2205_VCC3); /* 3V on */
puts (" 3.3V card found: ");
}
debug ("\nPB DAT: %08x -> 3.3V %s 5.0V %s VPP_PGM %s VPP_VCC %s\n",
reg,
(reg & TPS2205_VCC3) ? "off" : "on",
(reg & TPS2205_VCC5) ? "off" : "on",
(reg & TPS2205_VPP_PGM) ? "off" : "on",
(reg & TPS2205_VPP_VCC) ? "off" : "on" );
cp->cp_pbdat = reg;
/* Wait 500 ms; use this to check for over-current */
for (i=0; i<5000; ++i) {
if ((cp->cp_pbdat & TPS2205_OC) == 0) {
printf (" *** Overcurrent - Safety shutdown ***\n");
cp->cp_pbdat &= ~(TPS2205_SHDN);
return (1);
}
udelay (100);
}
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
immap = (immap_t *)CFG_IMMR;
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/* Shut down */
cp->cp_pbdat &= ~(TPS2205_SHDN);
/* Configure PCMCIA General Control Register */
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(10000);
return (0);
}
#endif /* CFG_CMD_PCMCIA */
static int voltage_set(int slot, int vcc, int vpp)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("voltage_set: "
PCMCIA_BOARD_MSG
" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
immap = (immap_t *)CFG_IMMR;
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/*
* Disable PCMCIA buffers (isolate the interface)
* and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Configure Port C pins for
* 5 Volts Enable and 3 Volts enable,
* Turn all power pins to Hi-Z
*/
debug ("PCMCIA power OFF\n");
cfg_port_B (); /* Enables switch, but all in Hi-Z */
reg = cp->cp_pbdat;
switch(vcc) {
case 0: break; /* Switch off */
case 33: reg &= ~TPS2205_VCC3; break; /* Switch on 3.3V */
case 50: reg &= ~TPS2205_VCC5; break; /* Switch on 5.0V */
default: goto done;
}
/* Checking supported voltages */
debug ("PIPR: 0x%x --> %s\n",
pcmp->pcmc_pipr,
(pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
cp->cp_pbdat = reg;
#ifdef DEBUG
{
char *s;
if ((reg & TPS2205_VCC3) == 0) {
s = "at 3.3V";
} else if ((reg & TPS2205_VCC5) == 0) {
s = "at 5.0V";
} else {
s = "down";
}
printf ("PCMCIA powered %s\n", s);
}
#endif
done:
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",
slot+'A');
return (0);
}
static void cfg_port_B (void)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
uint reg;
immap = (immap_t *)CFG_IMMR;
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/*
* Configure Port B for TPS2205 PC-Card Power-Interface Switch
*
* Switch off all voltages, assert shutdown
*/
reg = cp->cp_pbdat;
reg |= (TPS2205_VPP_PGM | TPS2205_VPP_VCC | /* VAVPP => Hi-Z */
TPS2205_VCC3 | TPS2205_VCC5 | /* VAVCC => Hi-Z */
TPS2205_SHDN); /* enable switch */
cp->cp_pbdat = reg;
cp->cp_pbpar &= ~(TPS2205_INPUTS | TPS2205_OUTPUTS);
reg = cp->cp_pbdir & ~(TPS2205_INPUTS);
cp->cp_pbdir = reg | TPS2205_OUTPUTS;
debug ("Set Port B: PAR: %08x DIR: %08x DAT: %08x\n",
cp->cp_pbpar, cp->cp_pbdir, cp->cp_pbdat);
}
#endif /* ICU862 */
/* -------------------------------------------------------------------- */
/* C2MON Boards by TTTech Computertechnik AG */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_C2MON)
#define PCMCIA_BOARD_MSG "C2MON"
static void cfg_ports (void);
static int hardware_enable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, pipr, mask;
ushort sreg;
int i;
debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
udelay(10000);
immap = (immap_t *)CFG_IMMR;
sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/* Configure Ports for TPS2211A PC-Card Power-Interface Switch */
cfg_ports ();
/*
* Configure SIUMCR to enable PCMCIA port B
* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
*/
sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK(_slot_);
pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Make sure there is a card in the slot, then configure the interface.
*/
udelay(10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__,__FUNCTION__,
&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
printf (" No Card found\n");
return (1);
}
/*
* Power On: Set VAVCC to 3.3V or 5V, set VAVPP to Hi-Z
*/
mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
pipr = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
pipr,
(reg&PCMCIA_VS1(slot))?"n":"ff",
(reg&PCMCIA_VS2(slot))?"n":"ff");
sreg = immap->im_ioport.iop_pcdat;
if ((pipr & mask) == mask) {
sreg |= (TPS2211_VPPD0 | TPS2211_VPPD1 | /* VAVPP => Hi-Z */
TPS2211_VCCD1); /* 5V on */
sreg &= ~(TPS2211_VCCD0); /* 3V off */
puts (" 5.0V card found: ");
} else {
sreg |= (TPS2211_VPPD0 | TPS2211_VPPD1 | /* VAVPP => Hi-Z */
TPS2211_VCCD0); /* 3V on */
sreg &= ~(TPS2211_VCCD1); /* 5V off */
puts (" 3.3V card found: ");
}
debug ("\nPC DAT: %04x -> 3.3V %s 5.0V %s\n",
sreg,
( (sreg & TPS2211_VCCD0) && !(sreg & TPS2211_VCCD1)) ? "on" : "off",
(!(sreg & TPS2211_VCCD0) && (sreg & TPS2211_VCCD1)) ? "on" : "off"
);
immap->im_ioport.iop_pcdat = sreg;
/* Wait 500 ms; use this to check for over-current */
for (i=0; i<5000; ++i) {
if ((cp->cp_pbdat & TPS2211_OC) == 0) {
printf (" *** Overcurrent - Safety shutdown ***\n");
immap->im_ioport.iop_pcdat &= ~(TPS2211_VCCD0|TPS2211_VCCD1);
return (1);
}
udelay (100);
}
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/* Configure PCMCIA General Control Register */
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
/* ALl voltages off / Hi-Z */
immap->im_ioport.iop_pcdat |= (TPS2211_VPPD0 | TPS2211_VPPD1 |
TPS2211_VCCD0 | TPS2211_VCCD1 );
udelay(10000);
return (0);
}
#endif /* CFG_CMD_PCMCIA */
static int voltage_set(int slot, int vcc, int vpp)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
u_long reg;
ushort sreg;
debug ("voltage_set: "
PCMCIA_BOARD_MSG
" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
immap = (immap_t *)CFG_IMMR;
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/*
* Disable PCMCIA buffers (isolate the interface)
* and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Configure Port C pins for
* 5 Volts Enable and 3 Volts enable,
* Turn all power pins to Hi-Z
*/
debug ("PCMCIA power OFF\n");
cfg_ports (); /* Enables switch, but all in Hi-Z */
sreg = immap->im_ioport.iop_pcdat;
sreg |= TPS2211_VPPD0 | TPS2211_VPPD1; /* VAVPP always Hi-Z */
switch(vcc) {
case 0: break; /* Switch off */
case 33: sreg |= TPS2211_VCCD0; /* Switch on 3.3V */
sreg &= ~TPS2211_VCCD1;
break;
case 50: sreg &= ~TPS2211_VCCD0; /* Switch on 5.0V */
sreg |= TPS2211_VCCD1;
break;
default: goto done;
}
/* Checking supported voltages */
debug ("PIPR: 0x%x --> %s\n",
pcmp->pcmc_pipr,
(pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
immap->im_ioport.iop_pcdat = sreg;
#ifdef DEBUG
{
char *s;
if ((sreg & TPS2211_VCCD0) && !(sreg & TPS2211_VCCD1)) {
s = "at 3.3V";
} else if (!(sreg & TPS2211_VCCD0) && (sreg & TPS2211_VCCD1)) {
s = "at 5.0V";
} else {
s = "down";
}
printf ("PCMCIA powered %s\n", s);
}
#endif
done:
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",
slot+'A');
return (0);
}
static void cfg_ports (void)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
ushort sreg;
immap = (immap_t *)CFG_IMMR;
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/*
* Configure Port C for TPS2211 PC-Card Power-Interface Switch
*
* Switch off all voltages, assert shutdown
*/
sreg = immap->im_ioport.iop_pcdat;
sreg |= (TPS2211_VPPD0 | TPS2211_VPPD1); /* VAVPP => Hi-Z */
sreg &= ~(TPS2211_VCCD0 | TPS2211_VCCD1); /* 3V and 5V off */
immap->im_ioport.iop_pcdat = sreg;
immap->im_ioport.iop_pcpar &= ~(TPS2211_OUTPUTS);
immap->im_ioport.iop_pcdir |= TPS2211_OUTPUTS;
debug ("Set Port C: PAR: %04x DIR: %04x DAT: %04x\n",
immap->im_ioport.iop_pcpar,
immap->im_ioport.iop_pcdir,
immap->im_ioport.iop_pcdat);
/*
* Configure Port B for TPS2211 PC-Card Power-Interface Switch
*
* Over-Current Input only
*/
cp->cp_pbpar &= ~(TPS2211_INPUTS);
cp->cp_pbdir &= ~(TPS2211_INPUTS);
debug ("Set Port B: PAR: %08x DIR: %08x DAT: %08x\n",
cp->cp_pbpar, cp->cp_pbdir, cp->cp_pbdat);
}
#endif /* C2MON */
/* -------------------------------------------------------------------- */
/* MBX board from Morotola */
/* -------------------------------------------------------------------- */
#if defined( CONFIG_MBX )
#include <../board/mbx8xx/csr.h>
/* A lot of this has been taken from the RPX code in this file it works from me.
I have added the voltage selection for the MBX board. */
/* MBX voltage bit in control register #2 */
#define CR2_VPP12 ((uchar)0x10)
#define CR2_VPPVDD ((uchar)0x20)
#define CR2_VDD5 ((uchar)0x40)
#define CR2_VDD3 ((uchar)0x80)
#define PCMCIA_BOARD_MSG "MBX860"
static int voltage_set (int slot, int vcc, int vpp)
{
uchar reg = 0;
debug ("voltage_set: PCMCIA_BOARD_MSG Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
'A' + slot, vcc / 10, vcc % 10, vpp / 10, vcc % 10);
switch (vcc) {
case 0:
break;
case 33:
reg |= CR2_VDD3;
break;
case 50:
reg |= CR2_VDD5;
break;
default:
return 1;
}
switch (vpp) {
case 0:
break;
case 33:
case 50:
if (vcc == vpp) {
reg |= CR2_VPPVDD;
} else {
return 1;
}
break;
case 120:
reg |= CR2_VPP12;
break;
default:
return 1;
}
/* first, turn off all power */
MBX_CSR2 &= ~(CR2_VDDSEL | CR2_VPPSEL);
/* enable new powersettings */
MBX_CSR2 |= reg;
debug ("MBX_CSR2 read = 0x%02x\n", MBX_CSR2);
return (0);
}
static int hardware_enable (int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, mask;
debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n",
'A' + slot);
udelay (10000);
immap = (immap_t *) CFG_IMMR;
sysp = (sysconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *) (&(((immap_t *) CFG_IMMR)->im_cpm));
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK (_slot_);
pcmp->pcmc_per &= ~PCMCIA_MASK (_slot_);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX (_slot_) = reg;
udelay (500);
/* remove all power */
voltage_set (slot, 0, 0);
/*
* Make sure there is a card in the slot, then configure the interface.
*/
udelay(10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__,__FUNCTION__,
&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
printf (" No Card found\n");
return (1);
}
/*
* Power On.
*/
mask = PCMCIA_VS1 (_slot_) | PCMCIA_VS2 (_slot_);
reg = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n", reg,
(reg & PCMCIA_VS1 (slot)) ? "n" : "ff",
(reg & PCMCIA_VS2 (slot)) ? "n" : "ff");
if ((reg & mask) == mask) {
voltage_set (_slot_, 50, 0);
printf (" 5.0V card found: ");
} else {
voltage_set (_slot_, 33, 0);
printf (" 3.3V card found: ");
}
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX (_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX (_slot_) = reg;
udelay (250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable (int slot)
{
return 0; /* No hardware to disable */
}
#endif /* CFG_CMD_PCMCIA */
#endif /* CONFIG_MBX */
/* -------------------------------------------------------------------- */
/* R360MPI Board */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_R360MPI)
#define PCMCIA_BOARD_MSG "R360MPI"
static int hardware_enable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, mask;
debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
udelay(10000);
immap = (immap_t *)CFG_IMMR;
sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/*
* Configure SIUMCR to enable PCMCIA port B
* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
*/
sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK(_slot_);
pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Configure Ports A, B & C pins for
* 5 Volts Enable and 3 Volts enable
*/
immap->im_ioport.iop_pcpar &= ~(0x0400);
immap->im_ioport.iop_pcso &= ~(0x0400);/*
immap->im_ioport.iop_pcdir |= 0x0400;*/
immap->im_ioport.iop_papar &= ~(0x0200);/*
immap->im_ioport.iop_padir |= 0x0200;*/
#if 0
immap->im_ioport.iop_pbpar &= ~(0xC000);
immap->im_ioport.iop_pbdir &= ~(0xC000);
#endif
/* remove all power */
immap->im_ioport.iop_pcdat |= 0x0400;
immap->im_ioport.iop_padat |= 0x0200;
/*
* Make sure there is a card in the slot, then configure the interface.
*/
udelay(10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__,__FUNCTION__,
&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
printf (" No Card found\n");
return (1);
}
/*
* Power On.
*/
mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
reg = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
reg,
(reg&PCMCIA_VS1(slot))?"n":"ff",
(reg&PCMCIA_VS2(slot))?"n":"ff");
if ((reg & mask) == mask) {
immap->im_ioport.iop_pcdat &= ~(0x4000);
puts (" 5.0V card found: ");
} else {
immap->im_ioport.iop_padat &= ~(0x0002);
puts (" 3.3V card found: ");
}
immap->im_ioport.iop_pcdir |= 0x0400;
immap->im_ioport.iop_padir |= 0x0200;
#if 0
/* VCC switch error flag, PCMCIA slot INPACK_ pin */
cp->cp_pbdir &= ~(0x0020 | 0x0010);
cp->cp_pbpar &= ~(0x0020 | 0x0010);
udelay(500000);
#endif
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
volatile immap_t *immap;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/* remove all power */
immap->im_ioport.iop_pcdat |= 0x0400;
immap->im_ioport.iop_padat |= 0x0200;
/* Configure PCMCIA General Control Register */
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(10000);
return (0);
}
#endif /* CFG_CMD_PCMCIA */
static int voltage_set(int slot, int vcc, int vpp)
{
volatile immap_t *immap;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("voltage_set: "
PCMCIA_BOARD_MSG
" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
/*
* Disable PCMCIA buffers (isolate the interface)
* and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
/*
* Configure Ports A & C pins for
* 5 Volts Enable and 3 Volts enable,
* Turn off all power
*/
debug ("PCMCIA power OFF\n");
immap->im_ioport.iop_pcpar &= ~(0x0400);
immap->im_ioport.iop_pcso &= ~(0x0400);/*
immap->im_ioport.iop_pcdir |= 0x0400;*/
immap->im_ioport.iop_papar &= ~(0x0200);/*
immap->im_ioport.iop_padir |= 0x0200;*/
immap->im_ioport.iop_pcdat |= 0x0400;
immap->im_ioport.iop_padat |= 0x0200;
reg = 0;
switch(vcc) {
case 0: break;
case 33: reg |= 0x0200; break;
case 50: reg |= 0x0400; break;
default: goto done;
}
/* Checking supported voltages */
debug ("PIPR: 0x%x --> %s\n",
pcmp->pcmc_pipr,
(pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
if (reg & 0x0200)
immap->im_ioport.iop_pcdat &= !reg;
if (reg & 0x0400)
immap->im_ioport.iop_padat &= !reg;
immap->im_ioport.iop_pcdir |= 0x0200;
immap->im_ioport.iop_padir |= 0x0400;
if (reg) {
debug ("PCMCIA powered at %sV\n",
(reg&0x0400) ? "5.0" : "3.3");
} else {
debug ("PCMCIA powered down\n");
}
done:
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(_slot_);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(_slot_) = reg;
udelay(500);
debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",
slot+'A');
return (0);
}
#endif /* R360MPI */
/* -------------------------------------------------------------------- */
/* KUP4K Board */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_KUP4K)
#define PCMCIA_BOARD_MSG "KUP4K"
#define KUP4K_PCMCIA_B_3V3 (0x00020000)
static int hardware_enable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
volatile sysconf8xx_t *sysp;
uint reg, mask;
debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
udelay(10000);
immap = (immap_t *)CFG_IMMR;
sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/*
* Configure SIUMCR to enable PCMCIA port B
* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
*/
sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
/* clear interrupt state, and disable interrupts */
pcmp->pcmc_pscr = PCMCIA_MASK(slot);
pcmp->pcmc_per &= ~PCMCIA_MASK(slot);
/*
* Disable interrupts, DMA, and PCMCIA buffers
* (isolate the interface) and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(slot) = reg;
udelay(2500);
/*
* Configure Port B pins for
* 3 Volts enable
*/
if (slot) { /* Slot A is built-in */
cp->cp_pbdir |= KUP4K_PCMCIA_B_3V3;
cp->cp_pbpar &= ~KUP4K_PCMCIA_B_3V3;
/* remove all power */
cp->cp_pbdat |= KUP4K_PCMCIA_B_3V3; /* active low */
}
/*
* Make sure there is a card in the slot, then configure the interface.
*/
udelay(10000);
debug ("[%d] %s: PIPR(%p)=0x%x\n",
__LINE__,__FUNCTION__,
&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
printf (" No Card found\n");
return (1);
}
/*
* Power On.
*/
printf("%s Slot %c:", slot ? "" : "\n", 'A' + slot);
mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
reg = pcmp->pcmc_pipr;
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
reg,
(reg&PCMCIA_VS1(slot))?"n":"ff",
(reg&PCMCIA_VS2(slot))?"n":"ff");
if ((reg & mask) == mask) {
puts (" 5.0V card found: NOT SUPPORTED !!!\n");
} else {
if(slot)
cp->cp_pbdat &= ~KUP4K_PCMCIA_B_3V3;
puts (" 3.3V card found: ");
}
#if 0
/* VCC switch error flag, PCMCIA slot INPACK_ pin */
cp->cp_pbdir &= ~(0x0020 | 0x0010);
cp->cp_pbpar &= ~(0x0020 | 0x0010);
udelay(500000);
#endif
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(slot);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(slot) = reg;
udelay(250000); /* some cards need >150 ms to come up :-( */
debug ("# hardware_enable done\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
static int hardware_disable(int slot)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/* remove all power */
if (slot)
cp->cp_pbdat |= KUP4K_PCMCIA_B_3V3;
/* Configure PCMCIA General Control Register */
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = 0;
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(slot) = reg;
udelay(10000);
return (0);
}
#endif /* CFG_CMD_PCMCIA */
static int voltage_set(int slot, int vcc, int vpp)
{
volatile immap_t *immap;
volatile cpm8xx_t *cp;
volatile pcmconf8xx_t *pcmp;
u_long reg;
debug ("voltage_set: " \
PCMCIA_BOARD_MSG \
" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
if (!slot) /* Slot A is not configurable */
return 0;
immap = (immap_t *)CFG_IMMR;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
/*
* Disable PCMCIA buffers (isolate the interface)
* and assert RESET signal
*/
debug ("Disable PCMCIA buffers and assert RESET\n");
reg = PCMCIA_PGCRX(slot);
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(slot) = reg;
udelay(500);
debug ("PCMCIA power OFF\n");
/*
* Configure Port B pins for
* 3 Volts enable
*/
cp->cp_pbdir |= KUP4K_PCMCIA_B_3V3;
cp->cp_pbpar &= ~KUP4K_PCMCIA_B_3V3;
/* remove all power */
cp->cp_pbdat |= KUP4K_PCMCIA_B_3V3; /* active low */
switch(vcc) {
case 0: break;
case 33:
cp->cp_pbdat &= ~KUP4K_PCMCIA_B_3V3;
debug ("PCMCIA powered at 3.3V\n");
break;
case 50:
debug ("PCMCIA: 5Volt vcc not supported\n");
break;
default:
puts("PCMCIA: vcc not supported");
break;
}
udelay(10000);
/* Checking supported voltages */
debug ("PIPR: 0x%x --> %s\n",
pcmp->pcmc_pipr,
(pcmp->pcmc_pipr & (0x80000000 >> (slot << 4)))
? "only 5 V --> NOT SUPPORTED"
: "can do 3.3V");
debug ("Enable PCMCIA buffers and stop RESET\n");
reg = PCMCIA_PGCRX(slot);
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
PCMCIA_PGCRX(slot) = reg;
udelay(500);
debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",
slot+'A');
return (0);
}
#endif /* KUP4K */
/* -------------------------------------------------------------------- */
/* End of Board Specific Stuff */
/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */
/* MPC8xx Specific Stuff - should go to MPC8xx directory */
/* -------------------------------------------------------------------- */
/*
* Search this table to see if the windowsize is
* supported...
*/
#define M8XX_SIZES_NO 32
static const u_int m8xx_size_to_gray[M8XX_SIZES_NO] =
{ 0x00000001, 0x00000002, 0x00000008, 0x00000004,
0x00000080, 0x00000040, 0x00000010, 0x00000020,
0x00008000, 0x00004000, 0x00001000, 0x00002000,
0x00000100, 0x00000200, 0x00000800, 0x00000400,
0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0x01000000, 0x02000000, 0xffffffff, 0x04000000,
0x00010000, 0x00020000, 0x00080000, 0x00040000,
0x00800000, 0x00400000, 0x00100000, 0x00200000 };
/* -------------------------------------------------------------------- */
#ifndef CONFIG_I82365
static u_int m8xx_get_graycode(u_int size)
{
u_int k;
for (k = 0; k < M8XX_SIZES_NO; k++) {
if(m8xx_size_to_gray[k] == size)
break;
}
if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
k = -1;
return k;
}
#endif /* CONFIG_I82365 */
/* -------------------------------------------------------------------- */
#if 0
static u_int m8xx_get_speed(u_int ns, u_int is_io)
{
u_int reg, clocks, psst, psl, psht;
if(!ns) {
/*
* We get called with IO maps setup to 0ns
* if not specified by the user.
* They should be 255ns.
*/
if(is_io)
ns = 255;
else
ns = 100; /* fast memory if 0 */
}
/*
* In PSST, PSL, PSHT fields we tell the controller
* timing parameters in CLKOUT clock cycles.
* CLKOUT is the same as GCLK2_50.
*/
/* how we want to adjust the timing - in percent */
#define ADJ 180 /* 80 % longer accesstime - to be sure */
clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
clocks = (clocks * ADJ) / (100*1000);
if(clocks >= PCMCIA_BMT_LIMIT) {
DEBUG(0, "Max access time limit reached\n");
clocks = PCMCIA_BMT_LIMIT-1;
}
psst = clocks / 7; /* setup time */
psht = clocks / 7; /* hold time */
psl = (clocks * 5) / 7; /* strobe length */
psst += clocks - (psst + psht + psl);
reg = psst << 12;
reg |= psl << 7;
reg |= psht << 16;
return reg;
}
#endif
/* -------------------------------------------------------------------- */
#ifdef CONFIG_IDE_8xx_PCCARD
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");
}
#endif /* CONFIG_IDE_8xx_PCCARD */
/* -------------------------------------------------------------------- */
#ifdef CONFIG_IDE_8xx_PCCARD
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');
}
#endif /* CONFIG_IDE_8xx_PCCARD */
/* -------------------------------------------------------------------- */
#ifdef CONFIG_IDE_8xx_PCCARD
#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_8xx_PCCARD */
/* -------------------------------------------------------------------- */
#endif /* CFG_CMD_PCMCIA || (CFG_CMD_IDE && CONFIG_IDE_8xx_PCCARD) */
/**************************************************/
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
U_BOOT_CMD(
pinit, 2, 1, do_pinit,
"pinit - PCMCIA sub-system\n",
"on - power on PCMCIA socket\n"
"pinit off - power off PCMCIA socket\n"
);
#endif
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