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ARM: sa1100/assabet: convert to generic CF sockets

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Convert Assabet to use the generic CF socket support.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2016-08-31 08:49:47 +01:00
parent 0920ca103f
commit 29786e9b65
7 changed files with 40 additions and 112 deletions
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2
arch/arm/mach-sa1100/Kconfig
View File

@ -6,6 +6,8 @@ config SA1100_ASSABET
bool "Assabet"
select ARM_SA1110_CPUFREQ
select GPIO_REG
select REGULATOR
select REGULATOR_FIXED_VOLTAGE
help
Say Y here if you are using the Intel(R) StrongARM(R) SA-1110
Microprocessor Development Board (also known as the Assabet).

39
arch/arm/mach-sa1100/assabet.c
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@ -14,8 +14,11 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/gpio/gpio-reg.h>
#include <linux/gpio/machine.h>
#include <linux/ioport.h>
#include <linux/platform_data/sa11x0-serial.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/mfd/ucb1x00.h>
@ -445,6 +448,29 @@ static struct resource neponset_resources[] = {
};
#endif
static struct gpiod_lookup_table assabet_cf_gpio_table = {
.dev_id = "sa11x0-pcmcia.1",
.table = {
GPIO_LOOKUP("gpio", 21, "ready", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 22, "detect", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio", 24, "bvd2", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 25, "bvd1", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("assabet", 1, "reset", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("assabet", 7, "bus-enable", GPIO_ACTIVE_LOW),
{ },
},
};
static struct regulator_consumer_supply assabet_cf_vcc_consumers[] = {
REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
};
static struct fixed_voltage_config assabet_cf_vcc_pdata __initdata = {
.supply_name = "cf-power",
.microvolts = 3300000,
.enable_high = 1,
};
static void __init assabet_init(void)
{
/*
@ -490,6 +516,11 @@ static void __init assabet_init(void)
platform_device_register_simple("neponset", 0,
neponset_resources, ARRAY_SIZE(neponset_resources));
#endif
} else {
sa11x0_register_fixed_regulator(0, &assabet_cf_vcc_pdata,
assabet_cf_vcc_consumers,
ARRAY_SIZE(assabet_cf_vcc_consumers));
}
#ifndef ASSABET_PAL_VIDEO
@ -501,6 +532,9 @@ static void __init assabet_init(void)
ARRAY_SIZE(assabet_flash_resources));
sa11x0_register_irda(&assabet_irda_data);
sa11x0_register_mcp(&assabet_mcp_data);
if (!machine_has_neponset())
sa11x0_register_pcmcia(1, &assabet_cf_gpio_table);
}
/*
@ -768,6 +802,7 @@ fs_initcall(assabet_leds_init);
void __init assabet_init_irq(void)
{
unsigned int assabet_gpio_base;
u32 def_val;
sa1100_init_irq();
@ -782,7 +817,9 @@ void __init assabet_init_irq(void)
*
* This must precede any driver calls to BCR_set() or BCR_clear().
*/
assabet_init_gpio((void *)&ASSABET_BCR, def_val);
assabet_gpio_base = assabet_init_gpio((void *)&ASSABET_BCR, def_val);
assabet_cf_vcc_pdata.gpio = assabet_gpio_base + 0;
}
MACHINE_START(ASSABET, "Intel-Assabet")

6
arch/arm/mach-sa1100/include/mach/assabet.h
View File

@ -96,10 +96,4 @@ extern void assabet_uda1341_reset(int set);
#define ASSABET_GPIO_BATT_LOW GPIO_GPIO (26) /* Low battery */
#define ASSABET_GPIO_RCLK GPIO_GPIO (26) /* CCLK/2 */
/* These are gpiolib GPIO numbers, not bitmasks */
#define ASSABET_GPIO_CF_IRQ 21 /* CF IRQ */
#define ASSABET_GPIO_CF_CD 22 /* CF CD */
#define ASSABET_GPIO_CF_BVD2 24 /* CF BVD / IOSPKR */
#define ASSABET_GPIO_CF_BVD1 25 /* CF BVD / IOSTSCHG */
#endif

1
drivers/pcmcia/Makefile
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@ -46,7 +46,6 @@ sa1111_cs-$(CONFIG_SA1100_JORNADA720) += sa1111_jornada720.o
sa1111_cs-$(CONFIG_ARCH_LUBBOCK) += sa1111_lubbock.o
sa1100_cs-y += sa1100_generic.o
sa1100_cs-$(CONFIG_SA1100_ASSABET) += sa1100_assabet.o
sa1100_cs-$(CONFIG_SA1100_CERF) += sa1100_cerf.o
sa1100_cs-$(CONFIG_SA1100_COLLIE) += pxa2xx_sharpsl.o
sa1100_cs-$(CONFIG_SA1100_H3100) += sa1100_h3600.o

100
drivers/pcmcia/sa1100_assabet.c
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@ -1,100 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 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 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 = soc_common_cf_socket_state,
.configure_socket = assabet_pcmcia_configure_socket,
.socket_suspend = assabet_pcmcia_socket_suspend,
};
int 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;
}

3
drivers/pcmcia/sa1100_generic.c
View File

@ -98,9 +98,6 @@ static struct pcmcia_low_level sa11x0_cf_ops = {
int __init pcmcia_collie_init(struct device *dev);
static int (*sa11x0_pcmcia_legacy_hw_init[])(struct device *dev) = {
#ifdef CONFIG_SA1100_ASSABET
pcmcia_assabet_init,
#endif
#ifdef CONFIG_SA1100_CERF
pcmcia_cerf_init,
#endif

1
drivers/pcmcia/sa1100_generic.h
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@ -6,7 +6,6 @@
* Declaration for all machine specific init/exit functions.
*/
extern int pcmcia_adsbitsy_init(struct device *);
extern int pcmcia_assabet_init(struct device *);
extern int pcmcia_badge4_init(struct device *);
extern int pcmcia_cerf_init(struct device *);
extern int pcmcia_flexanet_init(struct device *);