mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
1c3d038bd5
soc_common already initializes state.wrprot to zero, so explicitly setting wrprot to zero in the socket drivers has no additional effect. Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
|
|
* drivers/pcmcia/sa1100_assabet.c
|
|
*
|
|
* PCMCIA implementation routines for Assabet
|
|
*
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/device.h>
|
|
#include <linux/init.h>
|
|
#include <linux/gpio.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <mach/assabet.h>
|
|
|
|
#include "sa1100_generic.h"
|
|
|
|
static int assabet_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
|
|
{
|
|
skt->stat[SOC_STAT_CD].gpio = ASSABET_GPIO_CF_CD;
|
|
skt->stat[SOC_STAT_CD].name = "CF CD";
|
|
skt->stat[SOC_STAT_BVD1].gpio = ASSABET_GPIO_CF_BVD1;
|
|
skt->stat[SOC_STAT_BVD1].name = "CF BVD1";
|
|
skt->stat[SOC_STAT_BVD2].gpio = ASSABET_GPIO_CF_BVD2;
|
|
skt->stat[SOC_STAT_BVD2].name = "CF BVD2";
|
|
skt->stat[SOC_STAT_RDY].gpio = ASSABET_GPIO_CF_IRQ;
|
|
skt->stat[SOC_STAT_RDY].name = "CF RDY";
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
assabet_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
|
|
{
|
|
state->vs_3v = 1; /* Can only apply 3.3V on Assabet. */
|
|
state->vs_Xv = 0;
|
|
}
|
|
|
|
static int
|
|
assabet_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
|
|
{
|
|
unsigned int mask;
|
|
|
|
switch (state->Vcc) {
|
|
case 0:
|
|
mask = 0;
|
|
break;
|
|
|
|
case 50:
|
|
printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V...\n",
|
|
__func__);
|
|
|
|
case 33: /* Can only apply 3.3V to the CF slot. */
|
|
mask = ASSABET_BCR_CF_PWR;
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __func__,
|
|
state->Vcc);
|
|
return -1;
|
|
}
|
|
|
|
/* Silently ignore Vpp, speaker enable. */
|
|
|
|
if (state->flags & SS_RESET)
|
|
mask |= ASSABET_BCR_CF_RST;
|
|
if (!(state->flags & SS_OUTPUT_ENA))
|
|
mask |= ASSABET_BCR_CF_BUS_OFF;
|
|
|
|
ASSABET_BCR_frob(ASSABET_BCR_CF_RST | ASSABET_BCR_CF_PWR |
|
|
ASSABET_BCR_CF_BUS_OFF, mask);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Disable card status IRQs on suspend.
|
|
*/
|
|
static void assabet_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
|
|
{
|
|
/*
|
|
* Tristate the CF bus signals. Also assert CF
|
|
* reset as per user guide page 4-11.
|
|
*/
|
|
ASSABET_BCR_set(ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_CF_RST);
|
|
}
|
|
|
|
static struct pcmcia_low_level assabet_pcmcia_ops = {
|
|
.owner = THIS_MODULE,
|
|
.hw_init = assabet_pcmcia_hw_init,
|
|
.socket_state = assabet_pcmcia_socket_state,
|
|
.configure_socket = assabet_pcmcia_configure_socket,
|
|
.socket_suspend = assabet_pcmcia_socket_suspend,
|
|
};
|
|
|
|
int __devinit pcmcia_assabet_init(struct device *dev)
|
|
{
|
|
int ret = -ENODEV;
|
|
|
|
if (machine_is_assabet() && !machine_has_neponset())
|
|
ret = sa11xx_drv_pcmcia_probe(dev, &assabet_pcmcia_ops, 1, 1);
|
|
|
|
return ret;
|
|
}
|