[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>

1 files changed, 68 insertions, 72 deletions

diff --git a/drivers/pcmcia/pxa2xx_sharpsl.c b/drivers/pcmcia/pxa2xx_sharpsl.c
index fe5ea36e7de3..56c58831e80e 100644
--- a/drivers/pcmcia/pxa2xx_sharpsl.c
+++ b/drivers/pcmcia/pxa2xx_sharpsl.c
@@ -22,16 +22,20 @@
 #include <asm/hardware.h>
 #include <asm/irq.h>
 #include <asm/hardware/scoop.h>
-#ifdef CONFIG_SA1100_COLLIE
-#include <asm/arch-sa1100/collie.h>
-#else
-#include <asm/arch-pxa/pxa-regs.h>
-#endif
 
 #include "soc_common.h"
 
 #define NO_KEEP_VS 0x0001
 
+/* PCMCIA to Scoop linkage
+
+   There is no easy way to link multiple scoop devices into one
+   single entity for the pxa2xx_pcmcia device so this structure
+   is used which is setup by the platform code
+*/
+struct scoop_pcmcia_config *platform_scoop_config;
+#define SCOOP_DEV platform_scoop_config->devs
+
 static void sharpsl_pcmcia_init_reset(struct scoop_pcmcia_dev *scoopdev)
 {
         reset_scoop(scoopdev->dev);
@@ -43,38 +47,16 @@ static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
         int ret;
 
-#ifndef CONFIG_SA1100_COLLIE
-        /*
-         * 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(GPIO52_nPCE_1_MD);
-        pxa_gpio_mode(GPIO53_nPCE_2_MD);
-        pxa_gpio_mode(GPIO54_pSKTSEL_MD);
-        pxa_gpio_mode(GPIO55_nPREG_MD);
-        pxa_gpio_mode(GPIO56_nPWAIT_MD);
-        pxa_gpio_mode(GPIO57_nIOIS16_MD);
-#endif
+        if (platform_scoop_config->pcmcia_init)
+                platform_scoop_config->pcmcia_init();
 
         /* Register interrupts */
-        if (scoop_devs[skt->nr].cd_irq >= 0) {
+        if (SCOOP_DEV[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;
+                cd_irq.irq  = SCOOP_DEV[skt->nr].cd_irq;
+                cd_irq.str  = SCOOP_DEV[skt->nr].cd_irq_str;
                 ret = soc_pcmcia_request_irqs(skt, &cd_irq, 1);
 
                 if (ret) {
@@ -83,19 +65,19 @@ static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
                 }
         }
 
-        skt->irq = scoop_devs[skt->nr].irq;
+        skt->irq = SCOOP_DEV[skt->nr].irq;
 
         return 0;
 }
 
 static void sharpsl_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
 {
-        if (scoop_devs[skt->nr].cd_irq >= 0) {
+        if (SCOOP_DEV[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;
+                cd_irq.irq  = SCOOP_DEV[skt->nr].cd_irq;
+                cd_irq.str  = SCOOP_DEV[skt->nr].cd_irq_str;
                 soc_pcmcia_free_irqs(skt, &cd_irq, 1);
         }
 }
@@ -105,9 +87,9 @@ static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
                                     struct pcmcia_state *state)
 {
         unsigned short cpr, csr;
-        struct device *scoop = scoop_devs[skt->nr].dev;
+        struct device *scoop = SCOOP_DEV[skt->nr].dev;
 
-        cpr = read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR);
+        cpr = read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR);
 
         write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
         write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
@@ -116,21 +98,25 @@ static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
         if (csr & 0x0004) {
                 /* card eject */
                 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
-                scoop_devs[skt->nr].keep_vs = NO_KEEP_VS;
+                SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
         }
-        else if (!(scoop_devs[skt->nr].keep_vs & NO_KEEP_VS)) {
+        else if (!(SCOOP_DEV[skt->nr].keep_vs & NO_KEEP_VS)) {
                 /* keep vs1,vs2 */
                 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
-                csr |= scoop_devs[skt->nr].keep_vs;
+                csr |= SCOOP_DEV[skt->nr].keep_vs;
         }
         else if (cpr & 0x0003) {
                 /* power on */
                 write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
-                scoop_devs[skt->nr].keep_vs = (csr & 0x00C0);
+                SCOOP_DEV[skt->nr].keep_vs = (csr & 0x00C0);
         }
         else {
                 /* card detect */
-                write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
+                if ((machine_is_spitz() || machine_is_borzoi()) && skt->nr == 1) {
+                        write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+                } else {
+                        write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
+                }
         }
 
         state->detect = (csr & 0x0004) ? 0 : 1;
@@ -144,7 +130,6 @@ static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
         if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
                 printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
         }
-
 }
 
 
@@ -152,7 +137,7 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
                                        const socket_state_t *state)
 {
         unsigned long flags;
-        struct device *scoop = scoop_devs[skt->nr].dev;
+        struct device *scoop = SCOOP_DEV[skt->nr].dev;
 
         unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
 
@@ -177,8 +162,13 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
         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;
+        if ((machine_is_spitz() || machine_is_borzoi() || machine_is_akita()) && skt->nr == 0) {
+                ncpr |= (state->Vcc == 33) ? 0x0002 :
+                        (state->Vcc == 50) ? 0x0002 : 0;
+        } else {
+                ncpr |= (state->Vcc == 33) ? 0x0001 :
+                        (state->Vcc == 50) ? 0x0002 : 0;
+        }
         nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
         ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
         nccr |= (state->flags&SS_RESET)? 0x0080: 0;
@@ -190,18 +180,22 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
                         ((skt->status&SS_WRPROT) ? 0x0008 : 0);
 
         if (!(ncpr & 0x0003)) {
-                scoop_devs[skt->nr].keep_rd = 0;
-        } else if (!scoop_devs[skt->nr].keep_rd) {
+                SCOOP_DEV[skt->nr].keep_rd = 0;
+        } else if (!SCOOP_DEV[skt->nr].keep_rd) {
                 if (nccr & 0x0080)
-                        scoop_devs[skt->nr].keep_rd = 1;
+                        SCOOP_DEV[skt->nr].keep_rd = 1;
                 else
                         nccr |= 0x0080;
         }
 
         if (mcr != nmcr)
                 write_scoop_reg(scoop, SCOOP_MCR, nmcr);
-        if (cpr != ncpr)
-                write_scoop_reg(scoop, SCOOP_CPR, ncpr);
+        if (cpr != ncpr) {
+                if (platform_scoop_config->power_ctrl)
+                        platform_scoop_config->power_ctrl(scoop, ncpr , skt->nr);
+                else
+                        write_scoop_reg(scoop, SCOOP_CPR, ncpr);
+        }
         if (ccr != nccr)
                 write_scoop_reg(scoop, SCOOP_CCR, nccr);
         if (imr != nimr)
@@ -214,43 +208,43 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
 
 static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
 {
-        sharpsl_pcmcia_init_reset(&scoop_devs[skt->nr]);
+        sharpsl_pcmcia_init_reset(&SCOOP_DEV[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;
+        write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
+        write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
+        SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
 
         if (machine_is_collie())
                 /* We need to disable SS_OUTPUT_ENA here. */
-                write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR, read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR) & ~0x0080);
+                write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR, read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR) & ~0x0080);
 }
 
 static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
 {
         /* CF_BUS_OFF */
-        sharpsl_pcmcia_init_reset(&scoop_devs[skt->nr]);
+        sharpsl_pcmcia_init_reset(&SCOOP_DEV[skt->nr]);
 
         if (machine_is_collie())
                 /* We need to disable SS_OUTPUT_ENA here. */
-                write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR, read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR) & ~0x0080);
+                write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR, read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR) & ~0x0080);
 }
 
 static struct pcmcia_low_level sharpsl_pcmcia_ops = {
-        .owner                          = THIS_MODULE,
-        .hw_init                        = sharpsl_pcmcia_hw_init,
-        .hw_shutdown            = sharpsl_pcmcia_hw_shutdown,
-        .socket_state           = sharpsl_pcmcia_socket_state,
-        .configure_socket       = sharpsl_pcmcia_configure_socket,
-        .socket_init            = sharpsl_pcmcia_socket_init,
-        .socket_suspend         = sharpsl_pcmcia_socket_suspend,
-        .first                          = 0,
-        .nr                                     = 0,
+        .owner                  = THIS_MODULE,
+        .hw_init                = sharpsl_pcmcia_hw_init,
+        .hw_shutdown            = sharpsl_pcmcia_hw_shutdown,
+        .socket_state           = sharpsl_pcmcia_socket_state,
+        .configure_socket       = sharpsl_pcmcia_configure_socket,
+        .socket_init            = sharpsl_pcmcia_socket_init,
+        .socket_suspend         = sharpsl_pcmcia_socket_suspend,
+        .first                  = 0,
+        .nr                     = 0,
 };
 
-static struct platform_device *sharpsl_pcmcia_device;
-
 #ifdef CONFIG_SA1100_COLLIE
+#include "sa11xx_base.h"
+
 int __init pcmcia_collie_init(struct device *dev)
 {
        int ret = -ENODEV;
@@ -263,11 +257,13 @@ int __init pcmcia_collie_init(struct device *dev)
 
 #else
 
+static struct platform_device *sharpsl_pcmcia_device;
+
 static int __init sharpsl_pcmcia_init(void)
 {
         int ret;
 
-        sharpsl_pcmcia_ops.nr=scoop_num;
+        sharpsl_pcmcia_ops.nr=platform_scoop_config->num_devs;
         sharpsl_pcmcia_device = kmalloc(sizeof(*sharpsl_pcmcia_device), GFP_KERNEL);
         if (!sharpsl_pcmcia_device)
                 return -ENOMEM;
@@ -275,7 +271,7 @@ static int __init sharpsl_pcmcia_init(void)
         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;
+        sharpsl_pcmcia_device->dev.parent=platform_scoop_config->devs[0].dev;
 
         ret = platform_device_register(sharpsl_pcmcia_device);
         if (ret)