[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / pcmcia / sa1100_jornada720.c

/*
 * drivers/pcmcia/sa1100_jornada720.c
 *
 * Jornada720 PCMCIA specific routines
 *
 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/init.h>

#include <mach/hardware.h>
#include <asm/hardware/sa1111.h>
#include <asm/mach-types.h>

#include "sa1111_generic.h"

/* Does SOCKET1_3V actually do anything? */
#define SOCKET0_POWER	GPIO_GPIO0
#define SOCKET0_3V	GPIO_GPIO2
#define SOCKET1_POWER	(GPIO_GPIO1 | GPIO_GPIO3)
#define SOCKET1_3V	GPIO_GPIO3

static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
	struct sa1111_pcmcia_socket *s = to_skt(skt);
	unsigned int pin = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3;

	/*
	* 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(s->dev, pin, 0, 0);
	sa1111_set_io(s->dev, pin, 0);
	sa1111_set_sleep_io(s->dev, pin, 0);

	return sa1111_pcmcia_hw_init(skt);
}

static int
jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
	struct sa1111_pcmcia_socket *s = to_skt(skt);
	unsigned int pa_dwr_mask, pa_dwr_set;
	int ret;

	printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
		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",
			__func__, state->Vpp);
		return -EPERM;
	}

	ret = sa1111_pcmcia_configure_socket(skt, state);
	if (ret == 0) {
		unsigned long flags;

		local_irq_save(flags);
		sa1111_set_io(s->dev, 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,

	.first			= 0,
	.nr			= 2,
};

int __devinit pcmcia_jornada720_init(struct device *dev)
{
	int ret = -ENODEV;

	if (machine_is_jornada720()) {
		sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
		ret = sa1111_pcmcia_add(dev, &jornada720_pcmcia_ops,
				sa11xx_drv_pcmcia_add_one);
	}

	return ret;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* drivers/pcmcia/sa1100_jornada720.c
	3	*
	4	* Jornada720 PCMCIA specific routines
	5	*
	6	*/
	7	#include <linux/module.h>
	8	#include <linux/kernel.h>
1da177e4 LT	9	#include <linux/device.h>
	10	#include <linux/errno.h>
	11	#include <linux/init.h>
	12
a09e64fb	13	#include <mach/hardware.h>
1da177e4 LT	14	#include <asm/hardware/sa1111.h>
	15	#include <asm/mach-types.h>
	16
	17	#include "sa1111_generic.h"
	18
02e87d1a KE	19	/* Does SOCKET1_3V actually do anything? */
	20	#define SOCKET0_POWER GPIO_GPIO0
	21	#define SOCKET0_3V GPIO_GPIO2
	22	#define SOCKET1_POWER (GPIO_GPIO1 \| GPIO_GPIO3)
1da177e4 LT	23	#define SOCKET1_3V GPIO_GPIO3
	24
	25	static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
	26	{
701a5dc0	27	struct sa1111_pcmcia_socket *s = to_skt(skt);
02e87d1a KE	28	unsigned int pin = GPIO_A0 \| GPIO_A1 \| GPIO_A2 \| GPIO_A3;
	29
	30	/*
	31	* What is all this crap for?
	32	*/
	33	GRER \|= 0x00000002;
	34	/* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
701a5dc0 RKAL	35	sa1111_set_io_dir(s->dev, pin, 0, 0);
	36	sa1111_set_io(s->dev, pin, 0);
	37	sa1111_set_sleep_io(s->dev, pin, 0);
02e87d1a KE	38
02e87d1a KE	39	return sa1111_pcmcia_hw_init(skt);
1da177e4 LT	40	}
	41
	42	static int
	43	jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket skt, const socket_state_t state)
	44	{
701a5dc0	45	struct sa1111_pcmcia_socket *s = to_skt(skt);
02e87d1a KE	46	unsigned int pa_dwr_mask, pa_dwr_set;
	47	int ret;
	48
	49	printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
	50	skt->nr, state->Vcc, state->Vpp);
	51
	52	switch (skt->nr) {
	53	case 0:
	54	pa_dwr_mask = SOCKET0_POWER \| SOCKET0_3V;
	55
	56	switch (state->Vcc) {
	57	default:
	58	case 0:
	59	pa_dwr_set = 0;
	60	break;
	61	case 33:
	62	pa_dwr_set = SOCKET0_POWER \| SOCKET0_3V;
	63	break;
	64	case 50:
	65	pa_dwr_set = SOCKET0_POWER;
	66	break;
	67	}
	68	break;
	69
	70	case 1:
	71	pa_dwr_mask = SOCKET1_POWER;
	72
	73	switch (state->Vcc) {
	74	default:
	75	case 0:
	76	pa_dwr_set = 0;
	77	break;
	78	case 33:
	79	pa_dwr_set = SOCKET1_POWER;
	80	break;
	81	case 50:
	82	pa_dwr_set = SOCKET1_POWER;
	83	break;
	84	}
	85	break;
	86
	87	default:
	88	return -1;
	89	}
	90
	91	if (state->Vpp != state->Vcc && state->Vpp != 0) {
	92	printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
	93	__func__, state->Vpp);
	94	return -EPERM;
	95	}
	96
	97	ret = sa1111_pcmcia_configure_socket(skt, state);
	98	if (ret == 0) {
	99	unsigned long flags;
	100
	101	local_irq_save(flags);
701a5dc0	102	sa1111_set_io(s->dev, pa_dwr_mask, pa_dwr_set);
02e87d1a KE	103	local_irq_restore(flags);
	104	}
	105
	106	return ret;
1da177e4 LT	107	}
	108
	109	static struct pcmcia_low_level jornada720_pcmcia_ops = {
02e87d1a KE	110	.owner = THIS_MODULE,
	111	.hw_init = jornada720_pcmcia_hw_init,
	112	.hw_shutdown = sa1111_pcmcia_hw_shutdown,
	113	.socket_state = sa1111_pcmcia_socket_state,
	114	.configure_socket = jornada720_pcmcia_configure_socket,
	115
	116	.socket_init = sa1111_pcmcia_socket_init,
	117	.socket_suspend = sa1111_pcmcia_socket_suspend,
701a5dc0 RKAL	118
	119	.first = 0,
	120	.nr = 2,
1da177e4 LT	121	};
1da177e4 LT	122
85e6c7a7	123	int __devinit pcmcia_jornada720_init(struct device *dev)
1da177e4 LT	124	{
	125	int ret = -ENODEV;
	126
701a5dc0 RKAL	127	if (machine_is_jornada720()) {
	128	sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
	129	ret = sa1111_pcmcia_add(dev, &jornada720_pcmcia_ops,
	130	sa11xx_drv_pcmcia_add_one);
	131	}
1da177e4 LT	132
	133	return ret;
	134	}