[ARM] 3093/1: SharpSL PCMCIA Updates for Cxx00 models

Patch from Richard Purdie

The Sharp SL-Cxx00 models have a combined power control for the SD
and CF slot 0. This patch adds hooks to the scoop driver to allow
machines to provide a custom control function for this and such a
function is added for spitz/akita/borzoi.

It also moves the gpio init code into the machine files as this
is machine dependent and differs between some models. A couple of
warnings when compiling for collie are also fixed.

Signed-off-by: Richard Purdie
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

4 files changed, 144 insertions, 37 deletions

diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index bb4eff6..c7fdf39 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -19,12 +19,6 @@
 
 #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;
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index eb5f6d74..100fb31 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -62,6 +62,37 @@ static struct scoop_config corgi_scoop_setup = {
 	.io_out		= CORGI_SCOOP_IO_OUT,
 };
 
+struct platform_device corgiscoop_device = {
+	.name		= "sharp-scoop",
+	.id		= -1,
+	.dev		= {
+ 		.platform_data	= &corgi_scoop_setup,
+	},
+	.num_resources	= ARRAY_SIZE(corgi_scoop_resources),
+	.resource	= corgi_scoop_resources,
+};
+
+static void corgi_pcmcia_init(void)
+{
+	/* Setup default state of GPIO outputs
+	   before we enable them as outputs. */
+	GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
+		GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
+		GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
+		GPIO_bit(GPIO53_nPCE_2);
+
+	pxa_gpio_mode(GPIO48_nPOE_MD);
+	pxa_gpio_mode(GPIO49_nPWE_MD);
+	pxa_gpio_mode(GPIO50_nPIOR_MD);
+	pxa_gpio_mode(GPIO51_nPIOW_MD);
+	pxa_gpio_mode(GPIO55_nPREG_MD);
+	pxa_gpio_mode(GPIO56_nPWAIT_MD);
+	pxa_gpio_mode(GPIO57_nIOIS16_MD);
+	pxa_gpio_mode(GPIO52_nPCE_1_MD);
+	pxa_gpio_mode(GPIO53_nPCE_2_MD);
+	pxa_gpio_mode(GPIO54_pSKTSEL_MD);
+}
+
 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
 {
 	.dev        = &corgiscoop_device.dev,
@@ -71,16 +102,14 @@ static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
 },
 };
 
-struct platform_device corgiscoop_device = {
-	.name		= "sharp-scoop",
-	.id		= -1,
-	.dev		= {
- 		.platform_data	= &corgi_scoop_setup,
-	},
-	.num_resources	= ARRAY_SIZE(corgi_scoop_resources),
-	.resource	= corgi_scoop_resources,
+static struct scoop_pcmcia_config corgi_pcmcia_config = {
+	.devs         = &corgi_pcmcia_scoop[0],
+	.num_devs     = 1,
+	.pcmcia_init  = corgi_pcmcia_init,
 };
 
+EXPORT_SYMBOL(corgiscoop_device);
+
 
 /*
  * Corgi SSP Device
@@ -294,8 +323,7 @@ static void __init corgi_init(void)
 	pxa_set_mci_info(&corgi_mci_platform_data);
 	pxa_set_ficp_info(&corgi_ficp_platform_data);
 
-	scoop_num = 1;
-	scoop_devs = &corgi_pcmcia_scoop[0];
+	platform_scoop_config = &corgi_pcmcia_config;
 
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index ad6a13f..eef3de2 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -65,6 +65,27 @@ struct platform_device poodle_scoop_device = {
 	.resource	= poodle_scoop_resources,
 };
 
+static void poodle_pcmcia_init(void)
+{
+	/* Setup default state of GPIO outputs
+	   before we enable them as outputs. */
+	GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
+		GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
+		GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
+		GPIO_bit(GPIO53_nPCE_2);
+
+	pxa_gpio_mode(GPIO48_nPOE_MD);
+	pxa_gpio_mode(GPIO49_nPWE_MD);
+	pxa_gpio_mode(GPIO50_nPIOR_MD);
+	pxa_gpio_mode(GPIO51_nPIOW_MD);
+	pxa_gpio_mode(GPIO55_nPREG_MD);
+	pxa_gpio_mode(GPIO56_nPWAIT_MD);
+	pxa_gpio_mode(GPIO57_nIOIS16_MD);
+	pxa_gpio_mode(GPIO52_nPCE_1_MD);
+	pxa_gpio_mode(GPIO53_nPCE_2_MD);
+	pxa_gpio_mode(GPIO54_pSKTSEL_MD);
+}
+
 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 {
 	.dev        = &poodle_scoop_device.dev,
@@ -74,6 +95,14 @@ static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 },
 };
 
+static struct scoop_pcmcia_config poodle_pcmcia_config = {
+	.devs         = &poodle_pcmcia_scoop[0],
+	.num_devs     = 1,
+	.pcmcia_init  = poodle_pcmcia_init,
+};
+
+EXPORT_SYMBOL(poodle_scoop_device);
+
 
 /* LoCoMo device */
 static struct resource locomo_resources[] = {
@@ -268,8 +297,7 @@ static void __init poodle_init(void)
 	pxa_set_mci_info(&poodle_mci_platform_data);
 	pxa_set_ficp_info(&poodle_ficp_platform_data);
 
-	scoop_num = 1;
-	scoop_devs = &poodle_pcmcia_scoop[0];
+	platform_scoop_config = &poodle_pcmcia_config;
 
 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 	if (ret) {
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 6c6878c..4e9a699 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -104,6 +104,66 @@ struct platform_device spitzscoop2_device = {
 	.resource	= spitz_scoop2_resources,
 };
 
+#define SPITZ_PWR_SD 0x01
+#define SPITZ_PWR_CF 0x02
+
+/* Power control is shared with between one of the CF slots and SD */
+static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
+{
+	unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
+
+	if (new_cpr & 0x0007) {
+	        set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
+		if (!(cpr & 0x0002) && !(cpr & 0x0004))
+		        mdelay(5);
+		if (device == SPITZ_PWR_CF)
+		        cpr |= 0x0002;
+		if (device == SPITZ_PWR_SD)
+		        cpr |= 0x0004;
+	        write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
+	} else {
+		if (device == SPITZ_PWR_CF)
+		        cpr &= ~0x0002;
+		if (device == SPITZ_PWR_SD)
+		        cpr &= ~0x0004;
+	        write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
+		if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
+		        mdelay(1);
+		        reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
+		}
+	}
+}
+
+static void spitz_pcmcia_init(void)
+{
+	/* Setup default state of GPIO outputs
+	   before we enable them as outputs. */
+	GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
+		GPIO_bit(GPIO49_nPWE) |	GPIO_bit(GPIO50_nPIOR) |
+		GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
+	GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
+
+	pxa_gpio_mode(GPIO48_nPOE_MD);
+	pxa_gpio_mode(GPIO49_nPWE_MD);
+	pxa_gpio_mode(GPIO50_nPIOR_MD);
+	pxa_gpio_mode(GPIO51_nPIOW_MD);
+	pxa_gpio_mode(GPIO55_nPREG_MD);
+	pxa_gpio_mode(GPIO56_nPWAIT_MD);
+	pxa_gpio_mode(GPIO57_nIOIS16_MD);
+	pxa_gpio_mode(GPIO85_nPCE_1_MD);
+	pxa_gpio_mode(GPIO54_nPCE_2_MD);
+	pxa_gpio_mode(GPIO104_pSKTSEL_MD);
+}
+
+static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
+{
+	/* Only need to override behaviour for slot 0 */
+	if (nr == 0)
+		spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
+	else
+		write_scoop_reg(scoop, SCOOP_CPR, cpr);
+}
+
 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
 {
 	.dev        = &spitzscoop_device.dev,
@@ -117,6 +177,16 @@ static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
 },
 };
 
+static struct scoop_pcmcia_config spitz_pcmcia_config = {
+	.devs         = &spitz_pcmcia_scoop[0],
+	.num_devs     = 2,
+	.pcmcia_init  = spitz_pcmcia_init,
+	.power_ctrl   = spitz_pcmcia_pwr,
+};
+
+EXPORT_SYMBOL(spitzscoop_device);
+EXPORT_SYMBOL(spitzscoop2_device);
+
 
 /*
  * Spitz SSP Device
@@ -235,27 +305,14 @@ static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(in
 	return 0;
 }
 
-/* Power control is shared with one of the CF slots so we have a mess */
 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
 {
 	struct pxamci_platform_data* p_d = dev->platform_data;
 
-	unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
-
-	if (( 1 << vdd) & p_d->ocr_mask) {
-		/* printk(KERN_DEBUG "%s: on\n", __FUNCTION__); */
-		set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
-		mdelay(2);
-		write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | 0x04);
-	} else {
-		/* printk(KERN_DEBUG "%s: off\n", __FUNCTION__); */
-		write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr & ~0x04);
-
-		if (!(cpr | 0x02)) {
-			mdelay(1);
-			reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
-		}
-	}
+	if (( 1 << vdd) & p_d->ocr_mask)
+		spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
+	else
+		spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
 }
 
 static int spitz_mci_get_ro(struct device *dev)
@@ -351,8 +408,8 @@ static void __init common_init(void)
 
 static void __init spitz_init(void)
 {
-	scoop_num = 2;
-	scoop_devs = &spitz_pcmcia_scoop[0];
+	platform_scoop_config = &spitz_pcmcia_config;
+
 	spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
 
 	common_init();