/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux / drivers / pcmcia / soc_common . h
*
* Copyright ( C ) 2000 John G Dorsey < john + @ cs . cmu . edu >
*
* This file contains definitions for the PCMCIA support code common to
* integrated SOCs like the SA - 11 x0 and PXA2xx microprocessors .
*/
#ifndef _ASM_ARCH_PCMCIA
#define _ASM_ARCH_PCMCIA
/* include the world */
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/soc_common.h>
struct device;
struct gpio_desc;
struct pcmcia_low_level;
struct regulator;
struct skt_dev_info {
int nskt;
struct soc_pcmcia_socket skt[];
};
struct soc_pcmcia_timing {
unsigned short io;
unsigned short mem;
unsigned short attr;
};
extern void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *, struct soc_pcmcia_timing *);
void soc_pcmcia_init_one(struct soc_pcmcia_socket *skt,
const struct pcmcia_low_level *ops, struct device *dev);
void soc_pcmcia_remove_one(struct soc_pcmcia_socket *skt);
int soc_pcmcia_add_one(struct soc_pcmcia_socket *skt);
int soc_pcmcia_request_gpiods(struct soc_pcmcia_socket *skt);
void soc_common_cf_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state);
int soc_pcmcia_regulator_set(struct soc_pcmcia_socket *skt,
struct soc_pcmcia_regulator *r, int v);
#ifdef CONFIG_PCMCIA_DEBUG
extern void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
int lvl, const char *fmt, ...);
#define debug(skt, lvl, fmt, arg...) \
soc_pcmcia_debug(skt, __func__, lvl, fmt , ## arg)
#else
#define debug(skt, lvl, fmt, arg...) do { } while (0 )
#endif
/*
* The PC Card Standard , Release 7 , section 4 . 13 . 4 , says that twIORD
* has a minimum value of 165 ns . Section 4 . 13 . 5 says that twIOWR has
* a minimum value of 165 ns , as well . Section 4 . 7 . 2 ( describing
* common and attribute memory write timing ) says that twWE has a
* minimum value of 150 ns for a 250 ns cycle time ( for 5 V operation ;
* see section 4 . 7 . 4 ) , or 300 ns for a 600 ns cycle time ( for 3 . 3 V
* operation , also section 4 . 7 . 4 ) . Section 4 . 7 . 3 says that taOE
* has a maximum value of 150 ns for a 300 ns cycle time ( for 5 V
* operation ) , or 300 ns for a 600 ns cycle time ( for 3 . 3 V operation ) .
*
* When configuring memory maps , Card Services appears to adopt the policy
* that a memory access time of " 0 " means " use the default . " The default
* PCMCIA I / O command width time is 165 ns . The default PCMCIA 5 V attribute
* and memory command width time is 150 ns ; the PCMCIA 3 . 3 V attribute and
* memory command width time is 300 ns .
*/
#define SOC_PCMCIA_IO_ACCESS (165 )
#define SOC_PCMCIA_5V_MEM_ACCESS (150 )
#define SOC_PCMCIA_3V_MEM_ACCESS (300 )
#define SOC_PCMCIA_ATTR_MEM_ACCESS (300 )
/*
* The socket driver actually works nicely in interrupt - driven form ,
* so the ( relatively infrequent ) polling is " just to be sure . "
*/
#define SOC_PCMCIA_POLL_PERIOD (2 *HZ)
/* I/O pins replacing memory pins
* ( PCMCIA System Architecture , 2 nd ed . , by Don Anderson , p . 75 )
*
* These signals change meaning when going from memory - only to
* memory - or - I / O interface :
*/
#define iostschg bvd1
#define iospkr bvd2
#endif
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