forked from Minki/linux
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
/*
|
|
* drivers/pcmcia/sa1100_jornada720.c
|
|
*
|
|
* Jornada720 PCMCIA specific routines
|
|
*
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/device.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/hardware.h>
|
|
#include <asm/hardware/sa1111.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
#include "sa1111_generic.h"
|
|
|
|
#define SOCKET0_POWER GPIO_GPIO0
|
|
#define SOCKET0_3V GPIO_GPIO2
|
|
#define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3)
|
|
#warning *** Does SOCKET1_3V actually do anything?
|
|
#define SOCKET1_3V GPIO_GPIO3
|
|
|
|
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: */
|
|
PA_DDR = 0;
|
|
PA_DWR = 0;
|
|
PA_SDR = 0;
|
|
PA_SSR = 0;
|
|
|
|
PB_DDR = 0;
|
|
PB_DWR = 0x01;
|
|
PB_SDR = 0;
|
|
PB_SSR = 0;
|
|
|
|
PC_DDR = 0x88;
|
|
PC_DWR = 0x20;
|
|
PC_SDR = 0;
|
|
PC_SSR = 0;
|
|
|
|
return sa1111_pcmcia_hw_init(skt);
|
|
}
|
|
|
|
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);
|
|
PA_DWR = (PA_DWR & ~pa_dwr_mask) | pa_dwr_set;
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct pcmcia_low_level jornada720_pcmcia_ops = {
|
|
.owner = THIS_MODULE,
|
|
.hw_init = jornada720_pcmcia_hw_init,
|
|
.hw_shutdown = sa1111_pcmcia_hw_shutdown,
|
|
.socket_state = sa1111_pcmcia_socket_state,
|
|
.configure_socket = jornada720_pcmcia_configure_socket,
|
|
|
|
.socket_init = sa1111_pcmcia_socket_init,
|
|
.socket_suspend = sa1111_pcmcia_socket_suspend,
|
|
};
|
|
|
|
int __init pcmcia_jornada720_init(struct device *dev)
|
|
{
|
|
int ret = -ENODEV;
|
|
|
|
if (machine_is_jornada720())
|
|
ret = sa11xx_drv_pcmcia_probe(dev, &jornada720_pcmcia_ops, 0, 2);
|
|
|
|
return ret;
|
|
}
|