Patch from Richard Purdie
This patch updates the PCMCIA pxa2xx_sharpsl driver to support multiple scoop
devices by adding a scoop to pcmcia slot mapping structure. It adds platform
support for poodle, is known to work on spitz (which is dual slot) and
should also support collie with a minor amount of further work.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
#define SCOOP_REG(d,adr) (*(volatile unsigned short*)(d +(adr)))
#define SCOOP_REG(d,adr) (*(volatile unsigned short*)(d +(adr)))
+/* PCMCIA to Scoop linkage structures for pxa2xx_sharpsl.c
+ There is no easy way to link multiple scoop devices into one
+ single entity for the pxa2xx_pcmcia device */
+int scoop_num;
+struct scoop_pcmcia_dev *scoop_devs;
+
struct scoop_dev {
void *base;
spinlock_t scoop_lock;
struct scoop_dev {
void *base;
spinlock_t scoop_lock;
.io_out = CORGI_SCOOP_IO_OUT,
};
.io_out = CORGI_SCOOP_IO_OUT,
};
+static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
+{
+ .dev = &corgiscoop_device.dev,
+ .irq = CORGI_IRQ_GPIO_CF_IRQ,
+ .cd_irq = CORGI_IRQ_GPIO_CF_CD,
+ .cd_irq_str = "PCMCIA0 CD",
+},
+};
+
struct platform_device corgiscoop_device = {
.name = "sharp-scoop",
.id = -1,
struct platform_device corgiscoop_device = {
.name = "sharp-scoop",
.id = -1,
pxa_set_udc_info(&udc_info);
pxa_set_mci_info(&corgi_mci_platform_data);
pxa_set_udc_info(&udc_info);
pxa_set_mci_info(&corgi_mci_platform_data);
+ scoop_num = 1;
+ scoop_devs = &corgi_pcmcia_scoop[0];
+
platform_add_devices(devices, ARRAY_SIZE(devices));
}
platform_add_devices(devices, ARRAY_SIZE(devices));
}
.resource = poodle_scoop_resources,
};
.resource = poodle_scoop_resources,
};
+static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
+{
+ .dev = &poodle_scoop_device.dev,
+ .irq = POODLE_IRQ_GPIO_CF_IRQ,
+ .cd_irq = POODLE_IRQ_GPIO_CF_CD,
+ .cd_irq_str = "PCMCIA0 CD",
+},
+};
+
/* LoCoMo device */
static struct resource locomo_resources[] = {
/* LoCoMo device */
static struct resource locomo_resources[] = {
set_pxa_fb_info(&poodle_fb_info);
set_pxa_fb_info(&poodle_fb_info);
+ scoop_num = 1;
+ scoop_devs = &poodle_pcmcia_scoop[0];
+
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret) {
printk(KERN_WARNING "poodle: Unable to register LoCoMo device\n");
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret) {
printk(KERN_WARNING "poodle: Unable to register LoCoMo device\n");
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/hardware/scoop.h>
#include <asm/hardware/scoop.h>
-#include <asm/arch/corgi.h>
#include <asm/arch/pxa-regs.h>
#include "soc_common.h"
#define NO_KEEP_VS 0x0001
#include <asm/arch/pxa-regs.h>
#include "soc_common.h"
#define NO_KEEP_VS 0x0001
-static unsigned char keep_vs;
-static unsigned char keep_rd;
-
-static struct pcmcia_irqs irqs[] = {
- { 0, CORGI_IRQ_GPIO_CF_CD, "PCMCIA0 CD"},
-};
-
-static void sharpsl_pcmcia_init_reset(void)
+static void sharpsl_pcmcia_init_reset(struct scoop_pcmcia_dev *scoopdev)
- reset_scoop(&corgiscoop_device.dev);
- keep_vs = NO_KEEP_VS;
- keep_rd = 0;
+ reset_scoop(scoopdev->dev);
+ scoopdev->keep_vs = NO_KEEP_VS;
+ scoopdev->keep_rd = 0;
}
static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
}
static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
pxa_gpio_mode(GPIO57_nIOIS16_MD);
/* Register interrupts */
pxa_gpio_mode(GPIO57_nIOIS16_MD);
/* Register interrupts */
- ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
-
- if (ret) {
- printk(KERN_ERR "Request for Compact Flash IRQ failed\n");
- return ret;
+ if (scoop_devs[skt->nr].cd_irq >= 0) {
+ struct pcmcia_irqs cd_irq;
+
+ cd_irq.sock = skt->nr;
+ cd_irq.irq = scoop_devs[skt->nr].cd_irq;
+ cd_irq.str = scoop_devs[skt->nr].cd_irq_str;
+ ret = soc_pcmcia_request_irqs(skt, &cd_irq, 1);
+
+ if (ret) {
+ printk(KERN_ERR "Request for Compact Flash IRQ failed\n");
+ return ret;
+ }
- /* Enable interrupt */
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR, 0x00C0);
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR, 0x0101);
- keep_vs = NO_KEEP_VS;
-
- skt->irq = CORGI_IRQ_GPIO_CF_IRQ;
+ skt->irq = scoop_devs[skt->nr].irq;
return 0;
}
static void sharpsl_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
return 0;
}
static void sharpsl_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
- soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+ if (scoop_devs[skt->nr].cd_irq >= 0) {
+ struct pcmcia_irqs cd_irq;
- /* CF_BUS_OFF */
- sharpsl_pcmcia_init_reset();
+ cd_irq.sock = skt->nr;
+ cd_irq.irq = scoop_devs[skt->nr].cd_irq;
+ cd_irq.str = scoop_devs[skt->nr].cd_irq_str;
+ soc_pcmcia_free_irqs(skt, &cd_irq, 1);
+ }
struct pcmcia_state *state)
{
unsigned short cpr, csr;
struct pcmcia_state *state)
{
unsigned short cpr, csr;
+ struct device *scoop = scoop_devs[skt->nr].dev;
- cpr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR);
+ cpr = read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR);
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_IRM, 0x00FF);
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_ISR, 0x0000);
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_IRM, 0x0000);
- csr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CSR);
+ write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
+ write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
+ write_scoop_reg(scoop, SCOOP_IRM, 0x0000);
+ csr = read_scoop_reg(scoop, SCOOP_CSR);
if (csr & 0x0004) {
/* card eject */
if (csr & 0x0004) {
/* card eject */
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);
- keep_vs = NO_KEEP_VS;
+ write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+ scoop_devs[skt->nr].keep_vs = NO_KEEP_VS;
- else if (!(keep_vs & NO_KEEP_VS)) {
+ else if (!(scoop_devs[skt->nr].keep_vs & NO_KEEP_VS)) {
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);
- csr |= keep_vs;
+ write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+ csr |= scoop_devs[skt->nr].keep_vs;
}
else if (cpr & 0x0003) {
/* power on */
}
else if (cpr & 0x0003) {
/* power on */
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);
- keep_vs = (csr & 0x00C0);
+ write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+ scoop_devs[skt->nr].keep_vs = (csr & 0x00C0);
}
else {
/* card detect */
}
else {
/* card detect */
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0002);
+ write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
}
state->detect = (csr & 0x0004) ? 0 : 1;
}
state->detect = (csr & 0x0004) ? 0 : 1;
const socket_state_t *state)
{
unsigned long flags;
const socket_state_t *state)
{
unsigned long flags;
+ struct device *scoop = scoop_devs[skt->nr].dev;
unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
- nmcr = (mcr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR)) & ~0x0010;
- ncpr = (cpr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR)) & ~0x0083;
- nccr = (ccr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CCR)) & ~0x0080;
- nimr = (imr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR)) & ~0x003E;
+ nmcr = (mcr = read_scoop_reg(scoop, SCOOP_MCR)) & ~0x0010;
+ ncpr = (cpr = read_scoop_reg(scoop, SCOOP_CPR)) & ~0x0083;
+ nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
+ nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;
ncpr |= (state->Vcc == 33) ? 0x0001 :
(state->Vcc == 50) ? 0x0002 : 0;
ncpr |= (state->Vcc == 33) ? 0x0001 :
(state->Vcc == 50) ? 0x0002 : 0;
((skt->status&SS_WRPROT) ? 0x0008 : 0);
if (!(ncpr & 0x0003)) {
((skt->status&SS_WRPROT) ? 0x0008 : 0);
if (!(ncpr & 0x0003)) {
- keep_rd = 0;
- } else if (!keep_rd) {
+ scoop_devs[skt->nr].keep_rd = 0;
+ } else if (!scoop_devs[skt->nr].keep_rd) {
+ scoop_devs[skt->nr].keep_rd = 1;
else
nccr |= 0x0080;
}
if (mcr != nmcr)
else
nccr |= 0x0080;
}
if (mcr != nmcr)
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR, nmcr);
+ write_scoop_reg(scoop, SCOOP_MCR, nmcr);
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR, ncpr);
+ write_scoop_reg(scoop, SCOOP_CPR, ncpr);
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_CCR, nccr);
+ write_scoop_reg(scoop, SCOOP_CCR, nccr);
- write_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR, nimr);
+ write_scoop_reg(scoop, SCOOP_IMR, nimr);
local_irq_restore(flags);
local_irq_restore(flags);
static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
+ sharpsl_pcmcia_init_reset(&scoop_devs[skt->nr]);
+
+ /* Enable interrupt */
+ write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_IMR, 0x00C0);
+ write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_MCR, 0x0101);
+ scoop_devs[skt->nr].keep_vs = NO_KEEP_VS;
}
static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
}
static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
+ /* CF_BUS_OFF */
+ sharpsl_pcmcia_init_reset(&scoop_devs[skt->nr]);
}
static struct pcmcia_low_level sharpsl_pcmcia_ops = {
}
static struct pcmcia_low_level sharpsl_pcmcia_ops = {
.socket_init = sharpsl_pcmcia_socket_init,
.socket_suspend = sharpsl_pcmcia_socket_suspend,
.first = 0,
.socket_init = sharpsl_pcmcia_socket_init,
.socket_suspend = sharpsl_pcmcia_socket_suspend,
.first = 0,
};
static struct platform_device *sharpsl_pcmcia_device;
};
static struct platform_device *sharpsl_pcmcia_device;
+ sharpsl_pcmcia_ops.nr=scoop_num;
sharpsl_pcmcia_device = kmalloc(sizeof(*sharpsl_pcmcia_device), GFP_KERNEL);
if (!sharpsl_pcmcia_device)
return -ENOMEM;
sharpsl_pcmcia_device = kmalloc(sizeof(*sharpsl_pcmcia_device), GFP_KERNEL);
if (!sharpsl_pcmcia_device)
return -ENOMEM;
memset(sharpsl_pcmcia_device, 0, sizeof(*sharpsl_pcmcia_device));
sharpsl_pcmcia_device->name = "pxa2xx-pcmcia";
sharpsl_pcmcia_device->dev.platform_data = &sharpsl_pcmcia_ops;
memset(sharpsl_pcmcia_device, 0, sizeof(*sharpsl_pcmcia_device));
sharpsl_pcmcia_device->name = "pxa2xx-pcmcia";
sharpsl_pcmcia_device->dev.platform_data = &sharpsl_pcmcia_ops;
+ sharpsl_pcmcia_device->dev.parent=scoop_devs[0].dev;
ret = platform_device_register(sharpsl_pcmcia_device);
if (ret)
ret = platform_device_register(sharpsl_pcmcia_device);
if (ret)
unsigned short io_dir;
};
unsigned short io_dir;
};
+/* Structure for linking scoop devices to PCMCIA sockets */
+struct scoop_pcmcia_dev {
+ struct device *dev; /* Pointer to this socket's scoop device */
+ int irq; /* irq for socket */
+ int cd_irq;
+ const char *cd_irq_str;
+ unsigned char keep_vs;
+ unsigned char keep_rd;
+};
+
+extern int scoop_num;
+extern struct scoop_pcmcia_dev *scoop_devs;
+
void reset_scoop(struct device *dev);
unsigned short set_scoop_gpio(struct device *dev, unsigned short bit);
unsigned short reset_scoop_gpio(struct device *dev, unsigned short bit);
void reset_scoop(struct device *dev);
unsigned short set_scoop_gpio(struct device *dev, unsigned short bit);
unsigned short reset_scoop_gpio(struct device *dev, unsigned short bit);