linux/drivers/pcmcia/sa1100_shannon.c
Russell King 3169663ac5 ARM: sa11x0/pxa: convert OS timer registers to IOMEM
Make the OS timer registers have IOMEM like properities so they can
be passed to readl_relaxed/writel_relaxed() et.al. rather than being
straight volatile dereferences.  Add linux/io.h includes where
required.

linux/io.h includes added to arch/arm/mach-sa1100/cpu-sa1100.c,
 arch/arm/mach-sa1100/jornada720_ssp.c, arch/arm/mach-sa1100/leds-lart.c
 drivers/input/touchscreen/jornada720_ts.c, drivers/pcmcia/sa1100_shannon.c
from Arnd.

This fixes these warnings:

arch/arm/mach-sa1100/time.c: In function 'sa1100_timer_init':
arch/arm/mach-sa1100/time.c:104: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type
arch/arm/mach-pxa/time.c: In function 'pxa_timer_init':
arch/arm/mach-pxa/time.c:126: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-09 17:37:35 +01:00

103 lines
2.4 KiB
C

/*
* drivers/pcmcia/sa1100_shannon.c
*
* PCMCIA implementation routines for Shannon
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <mach/shannon.h>
#include <asm/irq.h>
#include "sa1100_generic.h"
static int shannon_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
/* All those are inputs */
GAFR &= ~(GPIO_GPIO(SHANNON_GPIO_EJECT_0) |
GPIO_GPIO(SHANNON_GPIO_EJECT_1) |
GPIO_GPIO(SHANNON_GPIO_RDY_0) |
GPIO_GPIO(SHANNON_GPIO_RDY_1));
if (skt->nr == 0) {
skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_0;
skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_0";
skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_0;
skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_0";
} else {
skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_1;
skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_1";
skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_1;
skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_1";
}
return 0;
}
static void
shannon_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
switch (skt->nr) {
case 0:
state->bvd1 = 1;
state->bvd2 = 1;
state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */
state->vs_Xv = 0;
break;
case 1:
state->bvd1 = 1;
state->bvd2 = 1;
state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */
state->vs_Xv = 0;
break;
}
}
static int
shannon_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
switch (state->Vcc) {
case 0: /* power off */
printk(KERN_WARNING "%s(): CS asked for 0V, still applying 3.3V..\n", __func__);
break;
case 50:
printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V..\n", __func__);
case 33:
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__func__, state->Vcc);
return -1;
}
printk(KERN_WARNING "%s(): Warning, Can't perform reset\n", __func__);
/* Silently ignore Vpp, output enable, speaker enable. */
return 0;
}
static struct pcmcia_low_level shannon_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = shannon_pcmcia_hw_init,
.socket_state = shannon_pcmcia_socket_state,
.configure_socket = shannon_pcmcia_configure_socket,
};
int __devinit pcmcia_shannon_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_shannon())
ret = sa11xx_drv_pcmcia_probe(dev, &shannon_pcmcia_ops, 0, 2);
return ret;
}