static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
/*
* What is all this crap for?
*/
GRER |= 0x00000002;
/* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
sa1111_set_io_dir(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0, 0);
sa1111_set_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0);
sa1111_set_sleep_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0);
return sa1111_pcmcia_hw_init(skt);
}
void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
struct sa1111_dev *sadev = SA1111_DEV(skt->dev);
unsigned long status = sa1111_readl(sadev->mapbase + SA1111_PCSR);
switch (skt->nr) {
case 0:
state->detect = status & PCSR_S0_DETECT ? 0 : 1;
state->ready = status & PCSR_S0_READY ? 1 : 0;
state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S0_WP ? 1 : 0;
state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
break;
case 1:
state->detect = status & PCSR_S1_DETECT ? 0 : 1;
state->ready = status & PCSR_S1_READY ? 1 : 0;
state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S1_WP ? 1 : 0;
state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
break;
}
}
static int
jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
unsigned int pa_dwr_mask, pa_dwr_set;
int ret;
printk("%s(): config socket %d vcc %d vpp %d\n", __FUNCTION__,
skt->nr, state->Vcc, state->Vpp);
switch (skt->nr) {
case 0:
pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V;
switch (state->Vcc) {
default:
case 0: pa_dwr_set = 0; break;
case 33: pa_dwr_set = SOCKET0_POWER | SOCKET0_3V; break;
case 50: pa_dwr_set = SOCKET0_POWER; break;
}
break;
case 1:
pa_dwr_mask = SOCKET1_POWER;
switch (state->Vcc) {
default:
case 0: pa_dwr_set = 0; break;
case 33: pa_dwr_set = SOCKET1_POWER; break;
case 50: pa_dwr_set = SOCKET1_POWER; break;
}
break;
default:
return -1;
}
if (state->Vpp != state->Vcc && state->Vpp != 0) {
printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
__FUNCTION__, state->Vpp);
return -1;
}
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0) {
unsigned long flags;
local_irq_save(flags);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set);
local_irq_restore(flags);
}
return ret;
}
int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
struct sa1111_dev *sadev = SA1111_DEV(skt->dev);
unsigned int pccr_skt_mask, pccr_set_mask, val;
unsigned long flags;
switch (skt->nr) {
case 0:
pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
break;
case 1:
pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
break;
default:
return -1;
}
pccr_set_mask = 0;
if (state->Vcc != 0)
pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
if (state->Vcc == 50)
pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
if (state->flags & SS_RESET)
pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
if (state->flags & SS_OUTPUT_ENA)
pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
local_irq_save(flags);
val = sa1111_readl(sadev->mapbase + SA1111_PCCR);
val &= ~pccr_skt_mask;
val |= pccr_set_mask & pccr_skt_mask;
sa1111_writel(val, sadev->mapbase + SA1111_PCCR);
local_irq_restore(flags);
return 0;
}
static int
lubbock_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
unsigned int pa_dwr_mask, pa_dwr_set, misc_mask, misc_set;
int ret = 0;
pa_dwr_mask = pa_dwr_set = misc_mask = misc_set = 0;
again:
switch (skt->nr) {
case 0:
pa_dwr_mask = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3;
switch (state->Vcc) {
case 0:
break;
case 33:
pa_dwr_set |= GPIO_A3;
break;
case 50:
pa_dwr_set |= GPIO_A2;
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__func__, state->Vcc);
ret = -1;
}
switch (state->Vpp) {
case 0:
break;
case 120:
pa_dwr_set |= GPIO_A1;
break;
default:
if (state->Vpp == state->Vcc)
pa_dwr_set |= GPIO_A0;
else {
printk(KERN_ERR "%s(): unrecognized Vpp %u\n",
__func__, state->Vpp);
ret = -1;
break;
}
}
break;
case 1:
misc_mask = (1 << 15) | (1 << 14);
switch (state->Vcc) {
case 0:
break;
case 33:
misc_set |= 1 << 15;
break;
case 50:
misc_set |= 1 << 14;
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__func__, state->Vcc);
ret = -1;
break;
}
if (state->Vpp != state->Vcc && state->Vpp != 0) {
printk(KERN_ERR "%s(): CF slot cannot support Vpp %u\n",
__func__, state->Vpp);
ret = -1;
break;
}
break;
default:
ret = -1;
}
if (ret == 0)
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0) {
lubbock_set_misc_wr(misc_mask, misc_set);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set);
}
#if 1
if (ret == 0 && state->Vcc == 33) {
struct pcmcia_state new_state;
mdelay(3);
sa1111_pcmcia_socket_state(skt, &new_state);
if (!new_state.vs_3v && !new_state.vs_Xv) {
lubbock_set_misc_wr(misc_mask, 0);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, 0);
mdelay(100);
((socket_state_t *)state)->Vcc = 50;
((socket_state_t *)state)->Vpp = 50;
goto again;
}
}
#endif
return ret;
}
static int
neponset_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
unsigned int ncr_mask, ncr_set, pa_dwr_mask, pa_dwr_set;
int ret;
switch (skt->nr) {
case 0:
pa_dwr_mask = GPIO_A0 | GPIO_A1;
ncr_mask = NCR_A0VPP | NCR_A1VPP;
if (state->Vpp == 0)
ncr_set = 0;
else if (state->Vpp == 120)
ncr_set = NCR_A1VPP;
else if (state->Vpp == state->Vcc)
ncr_set = NCR_A0VPP;
else {
printk(KERN_ERR "%s(): unrecognized VPP %u\n",
__func__, state->Vpp);
return -1;
}
break;
case 1:
pa_dwr_mask = GPIO_A2 | GPIO_A3;
ncr_mask = 0;
ncr_set = 0;
if (state->Vpp != state->Vcc && state->Vpp != 0) {
printk(KERN_ERR "%s(): CF slot cannot support VPP %u\n",
__func__, state->Vpp);
return -1;
}
break;
default:
return -1;
}
/*
* pa_dwr_set is the mask for selecting Vcc on both sockets.
* pa_dwr_mask selects which bits (and therefore socket) we change.
*/
switch (state->Vcc) {
default:
case 0: pa_dwr_set = 0; break;
case 33: pa_dwr_set = GPIO_A1|GPIO_A2; break;
case 50: pa_dwr_set = GPIO_A0|GPIO_A3; break;
}
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0) {
unsigned long flags;
local_irq_save(flags);
NCR_0 = (NCR_0 & ~ncr_mask) | ncr_set;
local_irq_restore(flags);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set);
}
return 0;
}
static int
lubbock_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
unsigned int pa_dwr_mask, pa_dwr_set, misc_mask, misc_set;
int ret = 0;
pa_dwr_mask = pa_dwr_set = misc_mask = misc_set = 0;
/* Lubbock uses the Maxim MAX1602, with the following connections:
*
* Socket 0 (PCMCIA):
* MAX1602 Lubbock Register
* Pin Signal
* ----- ------- ----------------------
* A0VPP S0_PWR0 SA-1111 GPIO A<0>
* A1VPP S0_PWR1 SA-1111 GPIO A<1>
* A0VCC S0_PWR2 SA-1111 GPIO A<2>
* A1VCC S0_PWR3 SA-1111 GPIO A<3>
* VX VCC
* VY +3.3V
* 12IN +12V
* CODE +3.3V Cirrus Code, CODE = High (VY)
*
* Socket 1 (CF):
* MAX1602 Lubbock Register
* Pin Signal
* ----- ------- ----------------------
* A0VPP GND VPP is not connected
* A1VPP GND VPP is not connected
* A0VCC S1_PWR0 MISC_WR<14>
* A1VCC S1_PWR1 MISC_WR<15>
* VX VCC
* VY +3.3V
* 12IN GND VPP is not connected
* CODE +3.3V Cirrus Code, CODE = High (VY)
*
*/
again:
switch (skt->nr) {
case 0:
pa_dwr_mask = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3;
switch (state->Vcc) {
case 0: /* Hi-Z */
break;
case 33: /* VY */
pa_dwr_set |= GPIO_A3;
break;
case 50: /* VX */
pa_dwr_set |= GPIO_A2;
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__FUNCTION__, state->Vcc);
ret = -1;
}
switch (state->Vpp) {
case 0: /* Hi-Z */
break;
case 120: /* 12IN */
pa_dwr_set |= GPIO_A1;
break;
default: /* VCC */
if (state->Vpp == state->Vcc)
pa_dwr_set |= GPIO_A0;
else {
printk(KERN_ERR "%s(): unrecognized Vpp %u\n",
__FUNCTION__, state->Vpp);
ret = -1;
break;
}
}
break;
case 1:
misc_mask = (1 << 15) | (1 << 14);
switch (state->Vcc) {
case 0: /* Hi-Z */
break;
case 33: /* VY */
misc_set |= 1 << 15;
break;
case 50: /* VX */
misc_set |= 1 << 14;
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__FUNCTION__, state->Vcc);
ret = -1;
break;
}
if (state->Vpp != state->Vcc && state->Vpp != 0) {
printk(KERN_ERR "%s(): CF slot cannot support Vpp %u\n",
__FUNCTION__, state->Vpp);
ret = -1;
break;
}
break;
default:
ret = -1;
}
if (ret == 0)
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0) {
lubbock_set_misc_wr(misc_mask, misc_set);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set);
}
#if 1
if (ret == 0 && state->Vcc == 33) {
struct pcmcia_state new_state;
/*
* HACK ALERT:
* We can't sense the voltage properly on Lubbock before
* actually applying some power to the socket (catch 22).
* Resense the socket Voltage Sense pins after applying
* socket power.
*
* Note: It takes about 2.5ms for the MAX1602 VCC output
* to rise.
*/
mdelay(3);
sa1111_pcmcia_socket_state(skt, &new_state);
if (!new_state.vs_3v && !new_state.vs_Xv) {
/*
* Switch to 5V, Configure socket with 5V voltage
*/
lubbock_set_misc_wr(misc_mask, 0);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, 0);
/*
* It takes about 100ms to turn off Vcc.
*/
mdelay(100);
/*
* We need to hack around the const qualifier as
* well to keep this ugly workaround localized and
* not force it to the rest of the code. Barf bags
* avaliable in the seat pocket in front of you!
*/
((socket_state_t *)state)->Vcc = 50;
((socket_state_t *)state)->Vpp = 50;
goto again;
}
}
#endif
return ret;
}