[ARM] 2882/1: pxa2xx_sharpsl: Update PCMCIA driver to support variety of new hardware (0ce7625f) · Commits · e / devices / android_kernel_oneplus_sm8150

arch/arm/common/scoop.c

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -17,6 +17,12 @@

	#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 {		struct scoop_dev {
	void *base;		void *base;
	spinlock_t scoop_lock;		spinlock_t scoop_lock;

arch/arm/mach-pxa/corgi.c

+12 −0

Original line number	Original line	Diff line number	Diff line
	@@ -60,6 +60,15 @@ static struct scoop_config corgi_scoop_setup = {
	.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 = {		struct platform_device corgiscoop_device = {
	.name = "sharp-scoop",		.name = "sharp-scoop",
	.id = -1,		.id = -1,
	@@ -241,6 +250,9 @@ static void __init corgi_init(void)
	pxa_set_udc_info(&udc_info);		pxa_set_udc_info(&udc_info);
	pxa_set_mci_info(&corgi_mci_platform_data);		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));
	}		}

arch/arm/mach-pxa/poodle.c

+12 −0

Original line number	Original line	Diff line number	Diff line
	@@ -62,6 +62,15 @@ struct platform_device poodle_scoop_device = {
	.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 */		/* LoCoMo device */
	static struct resource locomo_resources[] = {		static struct resource locomo_resources[] = {
	@@ -147,6 +156,9 @@ static void __init poodle_init(void)

	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));		ret = platform_add_devices(devices, ARRAY_SIZE(devices));
	if (ret) {		if (ret) {
	printk(KERN_WARNING "poodle: Unable to register LoCoMo device\n");		printk(KERN_WARNING "poodle: Unable to register LoCoMo device\n");

drivers/pcmcia/pxa2xx_sharpsl.c

+62 −52

Original line number	Original line	Diff line number	Diff line
	@@ -20,27 +20,18 @@

	#include <asm/hardware.h>		#include <asm/hardware.h>
	#include <asm/irq.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 <asm/arch/pxa-regs.h>

	#include "soc_common.h"		#include "soc_common.h"

	#define NO_KEEP_VS 0x0001		#define NO_KEEP_VS 0x0001

	static unsigned char keep_vs;		static void sharpsl_pcmcia_init_reset(struct scoop_pcmcia_dev *scoopdev)
	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)
	{		{
	reset_scoop(&corgiscoop_device.dev);		reset_scoop(scoopdev->dev);
	keep_vs = NO_KEEP_VS;		scoopdev->keep_vs = NO_KEEP_VS;
	keep_rd = 0;		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)
	@@ -71,29 +62,35 @@ static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
	pxa_gpio_mode(GPIO57_nIOIS16_MD);		pxa_gpio_mode(GPIO57_nIOIS16_MD);

	/* Register interrupts */		/* Register interrupts */
	ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));		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) {		if (ret) {
	printk(KERN_ERR "Request for Compact Flash IRQ failed\n");		printk(KERN_ERR "Request for Compact Flash IRQ failed\n");
	return ret;		return ret;
	}		}
			}

	/* Enable interrupt */		skt->irq = scoop_devs[skt->nr].irq;
	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;

	return 0;		return 0;
	}		}

	static void sharpsl_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)		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 */		cd_irq.sock = skt->nr;
	sharpsl_pcmcia_init_reset();		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);
			}
	}		}


	@@ -101,31 +98,32 @@ static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
	struct pcmcia_state *state)		struct pcmcia_state *state)
	{		{
	unsigned short cpr, csr;		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(scoop, SCOOP_IRM, 0x00FF);
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_ISR, 0x0000);		write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_IRM, 0x0000);		write_scoop_reg(scoop, SCOOP_IRM, 0x0000);
	csr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CSR);		csr = read_scoop_reg(scoop, SCOOP_CSR);
	if (csr & 0x0004) {		if (csr & 0x0004) {
	/* card eject */		/* card eject */
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);		write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
	keep_vs = NO_KEEP_VS;		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)) {
	/* keep vs1,vs2 */		/* keep vs1,vs2 */
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);		write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
	csr \|= keep_vs;		csr \|= scoop_devs[skt->nr].keep_vs;
	}		}
	else if (cpr & 0x0003) {		else if (cpr & 0x0003) {
	/* power on */		/* power on */
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_CDR, 0x0000);		write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
	keep_vs = (csr & 0x00C0);		scoop_devs[skt->nr].keep_vs = (csr & 0x00C0);
	}		}
	else {		else {
	/* card detect */		/* 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;
	@@ -147,6 +145,7 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
	const socket_state_t *state)		const socket_state_t *state)
	{		{
	unsigned long flags;		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;

	@@ -166,10 +165,10 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,

	local_irq_save(flags);		local_irq_save(flags);

	nmcr = (mcr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR)) & ~0x0010;		nmcr = (mcr = read_scoop_reg(scoop, SCOOP_MCR)) & ~0x0010;
	ncpr = (cpr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR)) & ~0x0083;		ncpr = (cpr = read_scoop_reg(scoop, SCOOP_CPR)) & ~0x0083;
	nccr = (ccr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_CCR)) & ~0x0080;		nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
	nimr = (imr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR)) & ~0x003E;		nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;

	ncpr \|= (state->Vcc == 33) ? 0x0001 :		ncpr \|= (state->Vcc == 33) ? 0x0001 :
	(state->Vcc == 50) ? 0x0002 : 0;		(state->Vcc == 50) ? 0x0002 : 0;
	@@ -184,22 +183,22 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
	((skt->status&SS_WRPROT) ? 0x0008 : 0);		((skt->status&SS_WRPROT) ? 0x0008 : 0);

	if (!(ncpr & 0x0003)) {		if (!(ncpr & 0x0003)) {
	keep_rd = 0;		scoop_devs[skt->nr].keep_rd = 0;
	} else if (!keep_rd) {		} else if (!scoop_devs[skt->nr].keep_rd) {
	if (nccr & 0x0080)		if (nccr & 0x0080)
	keep_rd = 1;		scoop_devs[skt->nr].keep_rd = 1;
	else		else
	nccr \|= 0x0080;		nccr \|= 0x0080;
	}		}

	if (mcr != nmcr)		if (mcr != nmcr)
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_MCR, nmcr);		write_scoop_reg(scoop, SCOOP_MCR, nmcr);
	if (cpr != ncpr)		if (cpr != ncpr)
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_CPR, ncpr);		write_scoop_reg(scoop, SCOOP_CPR, ncpr);
	if (ccr != nccr)		if (ccr != nccr)
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_CCR, nccr);		write_scoop_reg(scoop, SCOOP_CCR, nccr);
	if (imr != nimr)		if (imr != nimr)
	write_scoop_reg(&corgiscoop_device.dev, SCOOP_IMR, nimr);		write_scoop_reg(scoop, SCOOP_IMR, nimr);

	local_irq_restore(flags);		local_irq_restore(flags);

	@@ -208,10 +207,18 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,

	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 = {
	@@ -223,7 +230,7 @@ static struct pcmcia_low_level sharpsl_pcmcia_ops = {
	.socket_init = sharpsl_pcmcia_socket_init,		.socket_init = sharpsl_pcmcia_socket_init,
	.socket_suspend = sharpsl_pcmcia_socket_suspend,		.socket_suspend = sharpsl_pcmcia_socket_suspend,
	.first = 0,		.first = 0,
	.nr = 1,		.nr = 0,
	};		};

	static struct platform_device *sharpsl_pcmcia_device;		static struct platform_device *sharpsl_pcmcia_device;
	@@ -232,12 +239,15 @@ static int __init sharpsl_pcmcia_init(void)
	{		{
	int ret;		int ret;

			sharpsl_pcmcia_ops.nr=scoop_num;
	sharpsl_pcmcia_device = kmalloc(sizeof(*sharpsl_pcmcia_device), GFP_KERNEL);		sharpsl_pcmcia_device = kmalloc(sizeof(*sharpsl_pcmcia_device), GFP_KERNEL);
	if (!sharpsl_pcmcia_device)		if (!sharpsl_pcmcia_device)
	return -ENOMEM;		return -ENOMEM;

	memset(sharpsl_pcmcia_device, 0, sizeof(*sharpsl_pcmcia_device));		memset(sharpsl_pcmcia_device, 0, sizeof(*sharpsl_pcmcia_device));
	sharpsl_pcmcia_device->name = "pxa2xx-pcmcia";		sharpsl_pcmcia_device->name = "pxa2xx-pcmcia";
	sharpsl_pcmcia_device->dev.platform_data = &sharpsl_pcmcia_ops;		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);		ret = platform_device_register(sharpsl_pcmcia_device);
	if (ret)		if (ret)

include/asm-arm/hardware/scoop.h

+13 −0

Original line number	Original line	Diff line number	Diff line
	@@ -40,6 +40,19 @@ struct scoop_config {
	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);		void reset_scoop(struct device *dev);
	unsigned short set_scoop_gpio(struct device *dev, unsigned short bit);		unsigned short set_scoop_gpio(struct device *dev, unsigned short bit);
	unsigned short reset_scoop_gpio(struct device *dev, unsigned short bit);		unsigned short reset_scoop_gpio(struct device *dev, unsigned short bit);