[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>

3 files changed, 144 insertions, 31 deletions

diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index eb5f6d744a4a..100fb31b5156 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 ad6a13f95a62..eef3de26ad37 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 6c6878cd2207..4e9a699ee428 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();