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Merge branch 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm 

Pull ARM SA1100 updates from Russell King:
 "We have support for arbitary MMIO registers providing platform GPIOs,
  which allows us to abstract some of the SA11x0 CF support.

  This set of updates makes that change"

* 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: sa1100/simpad: switch simpad CF to use gpiod APIs
  ARM: sa1100/shannon: convert to generic CF sockets
  ARM: sa1100/nanoengine: convert to generic CF sockets
  ARM: sa1100/h3xxx: switch h3xxx PCMCIA to use gpiod APIs
  ARM: sa1100/cerf: convert to generic CF sockets
  ARM: sa1100/assabet: convert to generic CF sockets
  ARM: sa1100: provide infrastructure to support generic CF sockets
  pcmcia: sa1100: provide generic CF support
This commit is contained in:
Linus Torvalds 2018-04-09 09:26:36 -07:00
parent 4a1e00524c 64b2f129c3
commit 7886e8aa7f
20 changed files with 307 additions and 477 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
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).
@ -137,6 +139,8 @@ config SA1100_PLEB
config SA1100_SHANNON
bool "Shannon"
select ARM_SA1100_CPUFREQ
select REGULATOR
select REGULATOR_FIXED_VOLTAGE
help
The Shannon (also known as a Tuxscreen, and also as a IS2630) was a
limited edition webphone produced by Philips. The Shannon is a SA1100

39
arch/arm/mach-sa1100/assabet.c
View File

@ -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")

18
arch/arm/mach-sa1100/cerf.c
View File

@ -11,6 +11,7 @@
*/
#include <linux/init.h>
#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/platform_data/sa11x0-serial.h>
@ -45,6 +46,19 @@ static struct platform_device cerfuart2_device = {
.resource = cerfuart2_resources,
};
/* Compact Flash */
static struct gpiod_lookup_table cerf_cf_gpio_table = {
.dev_id = "sa11x0-pcmcia.1",
.table = {
GPIO_LOOKUP("gpio", 19, "bvd2", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 20, "bvd1", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 21, "reset", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 22, "ready", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 23, "detect", GPIO_ACTIVE_LOW),
{ },
},
};
/* LEDs */
struct gpio_led cerf_gpio_leds[] = {
{
@ -151,9 +165,6 @@ static void __init cerf_map_io(void)
sa1100_register_uart(0, 3);
sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
sa1100_register_uart(2, 1);
/* set some GPDR bits here while it's safe */
GPDR |= CERF_GPIO_CF_RESET;
}
static struct mcp_plat_data cerf_mcp_data = {
@ -167,6 +178,7 @@ static void __init cerf_init(void)
platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
sa11x0_register_mcp(&cerf_mcp_data);
sa11x0_register_pcmcia(1, &cerf_cf_gpio_table);
}
MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")

2
arch/arm/mach-sa1100/clock.c
View File

@ -163,6 +163,8 @@ static struct clk_lookup sa11xx_clkregs[] = {
CLKDEV_INIT("sa1100-rtc", NULL, NULL),
CLKDEV_INIT("sa11x0-fb", NULL, &clk_cpu),
CLKDEV_INIT("sa11x0-pcmcia", NULL, &clk_cpu),
CLKDEV_INIT("sa11x0-pcmcia.0", NULL, &clk_cpu),
CLKDEV_INIT("sa11x0-pcmcia.1", NULL, &clk_cpu),
/* sa1111 names devices using internal offsets, PCMCIA is at 0x1800 */
CLKDEV_INIT("1800", NULL, &clk_cpu),
CLKDEV_INIT(NULL, "OSTIMER0", &clk_36864),

44
arch/arm/mach-sa1100/generic.c
View File

@ -10,6 +10,7 @@
* published by the Free Software Foundation.
*/
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@ -20,6 +21,8 @@
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/irqchip/irq-sa11x0.h>
#include <video/sa1100fb.h>
@ -232,11 +235,20 @@ void sa11x0_register_lcd(struct sa1100fb_mach_info *inf)
sa11x0_register_device(&sa11x0fb_device, inf);
}
static bool sa11x0pcmcia_legacy = true;
static struct platform_device sa11x0pcmcia_device = {
.name = "sa11x0-pcmcia",
.id = -1,
};
void sa11x0_register_pcmcia(int socket, struct gpiod_lookup_table *table)
{
if (table)
gpiod_add_lookup_table(table);
platform_device_register_simple("sa11x0-pcmcia", socket, NULL, 0);
sa11x0pcmcia_legacy = false;
}
static struct platform_device sa11x0mtd_device = {
.name = "sa1100-mtd",
.id = -1,
@ -311,7 +323,6 @@ static struct platform_device *sa11x0_devices[] __initdata = {
&sa11x0uart1_device,
&sa11x0uart3_device,
&sa11x0ssp_device,
&sa11x0pcmcia_device,
&sa11x0rtc_device,
&sa11x0dma_device,
};
@ -319,6 +330,12 @@ static struct platform_device *sa11x0_devices[] __initdata = {
static int __init sa1100_init(void)
{
pm_power_off = sa1100_power_off;
if (sa11x0pcmcia_legacy)
platform_device_register(&sa11x0pcmcia_device);
regulator_has_full_constraints();
return platform_add_devices(sa11x0_devices, ARRAY_SIZE(sa11x0_devices));
}
@ -329,6 +346,31 @@ void __init sa11x0_init_late(void)
sa11x0_pm_init();
}
int __init sa11x0_register_fixed_regulator(int n,
struct fixed_voltage_config *cfg,
struct regulator_consumer_supply *supplies, unsigned num_supplies)
{
struct regulator_init_data *id;
cfg->init_data = id = kzalloc(sizeof(*cfg->init_data), GFP_KERNEL);
if (!cfg->init_data)
return -ENOMEM;
if (cfg->gpio < 0)
id->constraints.always_on = 1;
id->constraints.name = cfg->supply_name;
id->constraints.min_uV = cfg->microvolts;
id->constraints.max_uV = cfg->microvolts;
id->constraints.valid_modes_mask = REGULATOR_MODE_NORMAL;
id->constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS;
id->consumer_supplies = supplies;
id->num_consumer_supplies = num_supplies;
platform_device_register_resndata(NULL, "reg-fixed-voltage", n,
NULL, 0, cfg, sizeof(*cfg));
return 0;
}
/*
* Common I/O mapping:
*

8
arch/arm/mach-sa1100/generic.h
View File

@ -47,3 +47,11 @@ static inline int sa11x0_pm_init(void) { return 0; }
#endif
int sa11xx_clk_init(void);
struct gpiod_lookup_table;
void sa11x0_register_pcmcia(int socket, struct gpiod_lookup_table *);
struct fixed_voltage_config;
struct regulator_consumer_supply;
int sa11x0_register_fixed_regulator(int n, struct fixed_voltage_config *cfg,
struct regulator_consumer_supply *supplies, unsigned num_supplies);

17
arch/arm/mach-sa1100/h3xxx.c
View File

@ -11,6 +11,7 @@
*/
#include <linux/kernel.h>
#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
@ -264,8 +265,24 @@ static struct platform_device *h3xxx_devices[] = {
&h3xxx_micro_asic,
};
static struct gpiod_lookup_table h3xxx_pcmcia_gpio_table = {
.dev_id = "sa11x0-pcmcia",
.table = {
GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_CD0,
"pcmcia0-detect", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_IRQ0,
"pcmcia0-ready", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_CD1,
"pcmcia1-detect", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_IRQ1,
"pcmcia1-ready", GPIO_ACTIVE_HIGH),
{ },
},
};
void __init h3xxx_mach_init(void)
{
gpiod_add_lookup_table(&h3xxx_pcmcia_gpio_table);
sa1100_register_uart_fns(&h3xxx_port_fns);
sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));

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

23
arch/arm/mach-sa1100/nanoengine.c
View File

@ -12,6 +12,7 @@
*/
#include <linux/init.h>
#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/platform_data/sa11x0-serial.h>
#include <linux/mtd/mtd.h>
@ -99,8 +100,30 @@ static void __init nanoengine_map_io(void)
Ser2HSCR0 = 0;
}
static struct gpiod_lookup_table nanoengine_pcmcia0_gpio_table = {
.dev_id = "sa11x0-pcmcia.0",
.table = {
GPIO_LOOKUP("gpio", 11, "ready", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 13, "detect", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio", 15, "reset", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct gpiod_lookup_table nanoengine_pcmcia1_gpio_table = {
.dev_id = "sa11x0-pcmcia.1",
.table = {
GPIO_LOOKUP("gpio", 12, "ready", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", 14, "detect", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio", 16, "reset", GPIO_ACTIVE_HIGH),
{ },
},
};
static void __init nanoengine_init(void)
{
sa11x0_register_pcmcia(0, &nanoengine_pcmcia0_gpio_table);
sa11x0_register_pcmcia(1, &nanoengine_pcmcia1_gpio_table);
sa11x0_register_mtd(&nanoengine_flash_data, nanoengine_flash_resources,
ARRAY_SIZE(nanoengine_flash_resources));
}

38
arch/arm/mach-sa1100/shannon.c
View File

@ -5,11 +5,14 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/platform_data/sa11x0-serial.h>
#include <linux/tty.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <video/sa1100fb.h>
@ -72,8 +75,43 @@ static struct sa1100fb_mach_info shannon_lcd_info = {
.lccr3 = LCCR3_ACBsDiv(512),
};
static struct gpiod_lookup_table shannon_pcmcia0_gpio_table = {
.dev_id = "sa11x0-pcmcia.0",
.table = {
GPIO_LOOKUP("gpio", 24, "detect", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio", 26, "ready", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct gpiod_lookup_table shannon_pcmcia1_gpio_table = {
.dev_id = "sa11x0-pcmcia.1",
.table = {
GPIO_LOOKUP("gpio", 25, "detect", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio", 27, "ready", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct regulator_consumer_supply shannon_cf_vcc_consumers[] = {
REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.0"),
REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
};
static struct fixed_voltage_config shannon_cf_vcc_pdata __initdata = {
.supply_name = "cf-power",
.microvolts = 3300000,
.enabled_at_boot = 1,
.gpio = -EINVAL,
};
static void __init shannon_init(void)
{
sa11x0_register_fixed_regulator(0, &shannon_cf_vcc_pdata,
shannon_cf_vcc_consumers,
ARRAY_SIZE(shannon_cf_vcc_consumers));
sa11x0_register_pcmcia(0, &shannon_pcmcia0_gpio_table);
sa11x0_register_pcmcia(1, &shannon_pcmcia1_gpio_table);
sa11x0_ppc_configure_mcp();
sa11x0_register_lcd(&shannon_lcd_info);
sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);

11
arch/arm/mach-sa1100/simpad.c
View File

@ -4,6 +4,7 @@
*/
#include <linux/module.h>
#include <linux/gpio/machine.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
@ -364,6 +365,15 @@ static struct platform_device *devices[] __initdata = {
&simpad_i2c,
};
/* Compact Flash */
static struct gpiod_lookup_table simpad_cf_gpio_table = {
.dev_id = "sa11x0-pcmcia",
.table = {
GPIO_LOOKUP("gpio", GPIO_CF_IRQ, "cf-ready", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio", GPIO_CF_CD, "cf-detect", GPIO_ACTIVE_HIGH),
{ },
},
};
static int __init simpad_init(void)
@ -385,6 +395,7 @@ static int __init simpad_init(void)
pm_power_off = simpad_power_off;
sa11x0_register_pcmcia(-1, &simpad_cf_gpio_table);
sa11x0_ppc_configure_mcp();
sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));

4
drivers/pcmcia/Makefile
View File

@ -43,13 +43,9 @@ 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
sa1100_cs-$(CONFIG_SA1100_H3600) += sa1100_h3600.o
sa1100_cs-$(CONFIG_SA1100_NANOENGINE) += sa1100_nanoengine.o
sa1100_cs-$(CONFIG_SA1100_SHANNON) += sa1100_shannon.o
sa1100_cs-$(CONFIG_SA1100_SIMPAD) += sa1100_simpad.o
pxa2xx_cm_x2xx_cs-y += pxa2xx_cm_x2xx.o pxa2xx_cm_x255.o pxa2xx_cm_x270.o

100
drivers/pcmcia/sa1100_assabet.c
View File

@ -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;
}

86
drivers/pcmcia/sa1100_cerf.c
View File

@ -1,86 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* drivers/pcmcia/sa1100_cerf.c
*
* PCMCIA implementation routines for CerfBoard
* Based off the Assabet.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <mach/cerf.h>
#include "sa1100_generic.h"
#define CERF_SOCKET 1
static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int ret;
ret = gpio_request_one(CERF_GPIO_CF_RESET, GPIOF_OUT_INIT_LOW, "CF_RESET");
if (ret)
return ret;
skt->stat[SOC_STAT_CD].gpio = CERF_GPIO_CF_CD;
skt->stat[SOC_STAT_CD].name = "CF_CD";
skt->stat[SOC_STAT_BVD1].gpio = CERF_GPIO_CF_BVD1;
skt->stat[SOC_STAT_BVD1].name = "CF_BVD1";
skt->stat[SOC_STAT_BVD2].gpio = CERF_GPIO_CF_BVD2;
skt->stat[SOC_STAT_BVD2].name = "CF_BVD2";
skt->stat[SOC_STAT_RDY].gpio = CERF_GPIO_CF_IRQ;
skt->stat[SOC_STAT_RDY].name = "CF_IRQ";
return 0;
}
static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
gpio_free(CERF_GPIO_CF_RESET);
}
static int
cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
switch (state->Vcc) {
case 0:
case 50:
case 33:
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__func__, state->Vcc);
return -1;
}
gpio_set_value(CERF_GPIO_CF_RESET, !!(state->flags & SS_RESET));
return 0;
}
static struct pcmcia_low_level cerf_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = cerf_pcmcia_hw_init,
.hw_shutdown = cerf_pcmcia_hw_shutdown,
.socket_state = soc_common_cf_socket_state,
.configure_socket = cerf_pcmcia_configure_socket,
};
int pcmcia_cerf_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_cerf())
ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1);
return ret;
}

115
drivers/pcmcia/sa1100_generic.c
View File

@ -31,7 +31,9 @@
======================================================================*/
#include <linux/module.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
@ -41,24 +43,64 @@
#include "sa1100_generic.h"
static const char *sa11x0_cf_gpio_names[] = {
[SOC_STAT_CD] = "detect",
[SOC_STAT_BVD1] = "bvd1",
[SOC_STAT_BVD2] = "bvd2",
[SOC_STAT_RDY] = "ready",
};
static int sa11x0_cf_hw_init(struct soc_pcmcia_socket *skt)
{
struct device *dev = skt->socket.dev.parent;
int i;
skt->gpio_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(skt->gpio_reset))
return PTR_ERR(skt->gpio_reset);
skt->gpio_bus_enable = devm_gpiod_get_optional(dev, "bus-enable",
GPIOD_OUT_HIGH);
if (IS_ERR(skt->gpio_bus_enable))
return PTR_ERR(skt->gpio_bus_enable);
skt->vcc.reg = devm_regulator_get_optional(dev, "vcc");
if (IS_ERR(skt->vcc.reg))
return PTR_ERR(skt->vcc.reg);
if (!skt->vcc.reg)
dev_warn(dev,
"no Vcc regulator provided, ignoring Vcc controls\n");
for (i = 0; i < ARRAY_SIZE(sa11x0_cf_gpio_names); i++) {
skt->stat[i].name = sa11x0_cf_gpio_names[i];
skt->stat[i].desc = devm_gpiod_get_optional(dev,
sa11x0_cf_gpio_names[i], GPIOD_IN);
if (IS_ERR(skt->stat[i].desc))
return PTR_ERR(skt->stat[i].desc);
}
return 0;
}
static int sa11x0_cf_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
return soc_pcmcia_regulator_set(skt, &skt->vcc, state->Vcc);
}
static struct pcmcia_low_level sa11x0_cf_ops = {
.owner = THIS_MODULE,
.hw_init = sa11x0_cf_hw_init,
.socket_state = soc_common_cf_socket_state,
.configure_socket = sa11x0_cf_configure_socket,
};
int __init pcmcia_collie_init(struct device *dev);
static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = {
#ifdef CONFIG_SA1100_ASSABET
pcmcia_assabet_init,
#endif
#ifdef CONFIG_SA1100_CERF
pcmcia_cerf_init,
#endif
static int (*sa11x0_pcmcia_legacy_hw_init[])(struct device *dev) = {
#if defined(CONFIG_SA1100_H3100) || defined(CONFIG_SA1100_H3600)
pcmcia_h3600_init,
#endif
#ifdef CONFIG_SA1100_NANOENGINE
pcmcia_nanoengine_init,
#endif
#ifdef CONFIG_SA1100_SHANNON
pcmcia_shannon_init,
#endif
#ifdef CONFIG_SA1100_SIMPAD
pcmcia_simpad_init,
#endif
@ -67,15 +109,15 @@ static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = {
#endif
};
static int sa11x0_drv_pcmcia_probe(struct platform_device *dev)
static int sa11x0_drv_pcmcia_legacy_probe(struct platform_device *dev)
{
int i, ret = -ENODEV;
/*
* Initialise any "on-board" PCMCIA sockets.
*/
for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_hw_init); i++) {
ret = sa11x0_pcmcia_hw_init[i](&dev->dev);
for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_legacy_hw_init); i++) {
ret = sa11x0_pcmcia_legacy_hw_init[i](&dev->dev);
if (ret == 0)
break;
}
@ -83,7 +125,7 @@ static int sa11x0_drv_pcmcia_probe(struct platform_device *dev)
return ret;
}
static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
static int sa11x0_drv_pcmcia_legacy_remove(struct platform_device *dev)
{
struct skt_dev_info *sinfo = platform_get_drvdata(dev);
int i;
@ -96,6 +138,45 @@ static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
return 0;
}
static int sa11x0_drv_pcmcia_probe(struct platform_device *pdev)
{
struct soc_pcmcia_socket *skt;
struct device *dev = &pdev->dev;
if (pdev->id == -1)
return sa11x0_drv_pcmcia_legacy_probe(pdev);
skt = devm_kzalloc(dev, sizeof(*skt), GFP_KERNEL);
if (!skt)
return -ENOMEM;
platform_set_drvdata(pdev, skt);
skt->nr = pdev->id;
skt->clk = devm_clk_get(dev, NULL);
if (IS_ERR(skt->clk))
return PTR_ERR(skt->clk);
sa11xx_drv_pcmcia_ops(&sa11x0_cf_ops);
soc_pcmcia_init_one(skt, &sa11x0_cf_ops, dev);
return sa11xx_drv_pcmcia_add_one(skt);
}
static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
{
struct soc_pcmcia_socket *skt;
if (dev->id == -1)
return sa11x0_drv_pcmcia_legacy_remove(dev);
skt = platform_get_drvdata(dev);
soc_pcmcia_remove_one(skt);
return 0;
}
static struct platform_driver sa11x0_pcmcia_driver = {
.driver = {
.name = "sa11x0-pcmcia",

4
drivers/pcmcia/sa1100_generic.h
View File

@ -6,18 +6,14 @@
* 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 *);
extern int pcmcia_freebird_init(struct device *);
extern int pcmcia_gcplus_init(struct device *);
extern int pcmcia_graphicsmaster_init(struct device *);
extern int pcmcia_h3600_init(struct device *);
extern int pcmcia_nanoengine_init(struct device *);
extern int pcmcia_pangolin_init(struct device *);
extern int pcmcia_pfs168_init(struct device *);
extern int pcmcia_shannon_init(struct device *);
extern int pcmcia_simpad_init(struct device *);
extern int pcmcia_stork_init(struct device *);
extern int pcmcia_system3_init(struct device *);

16
drivers/pcmcia/sa1100_h3600.c
View File

@ -24,13 +24,15 @@ static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int err;
skt->stat[SOC_STAT_CD].name = skt->nr ? "pcmcia1-detect" : "pcmcia0-detect";
skt->stat[SOC_STAT_RDY].name = skt->nr ? "pcmcia1-ready" : "pcmcia0-ready";
err = soc_pcmcia_request_gpiods(skt);
if (err)
return err;
switch (skt->nr) {
case 0:
skt->stat[SOC_STAT_CD].gpio = H3XXX_GPIO_PCMCIA_CD0;
skt->stat[SOC_STAT_CD].name = "PCMCIA CD0";
skt->stat[SOC_STAT_RDY].gpio = H3XXX_GPIO_PCMCIA_IRQ0;
skt->stat[SOC_STAT_RDY].name = "PCMCIA IRQ0";
err = gpio_request(H3XXX_EGPIO_OPT_NVRAM_ON, "OPT NVRAM ON");
if (err)
goto err01;
@ -57,10 +59,6 @@ static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
goto err06;
break;
case 1:
skt->stat[SOC_STAT_CD].gpio = H3XXX_GPIO_PCMCIA_CD1;
skt->stat[SOC_STAT_CD].name = "PCMCIA CD1";
skt->stat[SOC_STAT_RDY].gpio = H3XXX_GPIO_PCMCIA_IRQ1;
skt->stat[SOC_STAT_RDY].name = "PCMCIA IRQ1";
break;
}
return 0;

133
drivers/pcmcia/sa1100_nanoengine.c
View File

@ -1,133 +0,0 @@
/*
* drivers/pcmcia/sa1100_nanoengine.c
*
* PCMCIA implementation routines for BSI nanoEngine.
*
* In order to have a fully functional pcmcia subsystem in a BSE nanoEngine
* board you should carefully read this:
* http://cambuca.ldhs.cetuc.puc-rio.br/nanoengine/
*
* Copyright (C) 2010 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
*
* Based on original work for kernel 2.4 by
* Miguel Freitas <miguel@cpti.cetuc.puc-rio.br>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/signal.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <mach/nanoengine.h>
#include "sa1100_generic.h"
struct nanoengine_pins {
unsigned output_pins;
unsigned clear_outputs;
int gpio_rst;
int gpio_cd;
int gpio_rdy;
};
static struct nanoengine_pins nano_skts[] = {
{
.gpio_rst = GPIO_PC_RESET0,
.gpio_cd = GPIO_PC_CD0,
.gpio_rdy = GPIO_PC_READY0,
}, {
.gpio_rst = GPIO_PC_RESET1,
.gpio_cd = GPIO_PC_CD1,
.gpio_rdy = GPIO_PC_READY1,
}
};
unsigned num_nano_pcmcia_sockets = ARRAY_SIZE(nano_skts);
static int nanoengine_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
unsigned i = skt->nr;
int ret;
if (i >= num_nano_pcmcia_sockets)
return -ENXIO;
ret = gpio_request_one(nano_skts[i].gpio_rst, GPIOF_OUT_INIT_LOW,
i ? "PC RST1" : "PC RST0");
if (ret)
return ret;
skt->stat[SOC_STAT_CD].gpio = nano_skts[i].gpio_cd;
skt->stat[SOC_STAT_CD].name = i ? "PC CD1" : "PC CD0";
skt->stat[SOC_STAT_RDY].gpio = nano_skts[i].gpio_rdy;
skt->stat[SOC_STAT_RDY].name = i ? "PC RDY1" : "PC RDY0";
return 0;
}
static void nanoengine_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
gpio_free(nano_skts[skt->nr].gpio_rst);
}
static int nanoengine_pcmcia_configure_socket(
struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return -ENXIO;
gpio_set_value(nano_skts[skt->nr].gpio_rst, !!(state->flags & SS_RESET));
return 0;
}
static void nanoengine_pcmcia_socket_state(
struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return;
state->bvd1 = 1;
state->bvd2 = 1;
state->vs_3v = 1; /* Can only apply 3.3V */
state->vs_Xv = 0;
}
static struct pcmcia_low_level nanoengine_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = nanoengine_pcmcia_hw_init,
.hw_shutdown = nanoengine_pcmcia_hw_shutdown,
.configure_socket = nanoengine_pcmcia_configure_socket,
.socket_state = nanoengine_pcmcia_socket_state,
};
int pcmcia_nanoengine_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_nanoengine())
ret = sa11xx_drv_pcmcia_probe(
dev, &nanoengine_pcmcia_ops, 0, 2);
return ret;
}

104
drivers/pcmcia/sa1100_shannon.c
View File

@ -1,104 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 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 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;
}

12
drivers/pcmcia/sa1100_simpad.c
View File

@ -12,7 +12,6 @@
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <mach/simpad.h>
#include "sa1100_generic.h"
@ -21,12 +20,10 @@ static int simpad_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
skt->stat[SOC_STAT_CD].gpio = GPIO_CF_CD;
skt->stat[SOC_STAT_CD].name = "CF_CD";
skt->stat[SOC_STAT_RDY].gpio = GPIO_CF_IRQ;
skt->stat[SOC_STAT_RDY].name = "CF_RDY";
skt->stat[SOC_STAT_CD].name = "cf-detect";
skt->stat[SOC_STAT_RDY].name = "cf-ready";
return 0;
return soc_pcmcia_request_gpiods(skt);
}
static void simpad_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
@ -42,9 +39,6 @@ simpad_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
{
long cs3reg = simpad_get_cs3_ro();
/* the detect signal is inverted - fix that up here */
state->detect = !state->detect;
state->bvd1 = 1; /* Might be cs3reg & PCMCIA_BVD1 */
state->bvd2 = 1; /* Might be cs3reg & PCMCIA_BVD2 */