4 files changed, 203 insertions, 23 deletions

diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index e0f884034c9f..de57e7e17868 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -220,7 +220,7 @@ config PCMCIA_PXA2XX
         tristate "PXA2xx support"
         depends on ARM && ARCH_PXA && PCMCIA
         depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \
-                    || MACH_ARMCORE || ARCH_PXA_PALM)
+                    || MACH_ARMCORE || ARCH_PXA_PALM || ARCH_VIPER)
         help
           Say Y here to include support for the PXA2xx PCMCIA controller
 
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 269a9e913ba2..76e859073cbb 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -72,5 +72,6 @@ pxa2xx_cs-$(CONFIG_ARCH_LUBBOCK)		+= pxa2xx_lubbock.o sa1111_generic.o
 pxa2xx_cs-$(CONFIG_MACH_MAINSTONE)              += pxa2xx_mainstone.o
 pxa2xx_cs-$(CONFIG_PXA_SHARPSL)                 += pxa2xx_sharpsl.o
 pxa2xx_cs-$(CONFIG_MACH_ARMCORE)                += pxa2xx_cm_x270.o
+pxa2xx_cs-$(CONFIG_ARCH_VIPER)                  += pxa2xx_viper.o
 pxa2xx_cs-$(CONFIG_MACH_PALMTX)         += pxa2xx_palmtx.o
 
diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c
index 1b07af5a2ed3..13f1e0fd3f31 100644
--- a/drivers/pcmcia/pxa2xx_base.c
+++ b/drivers/pcmcia/pxa2xx_base.c
@@ -30,6 +30,7 @@
 #include <asm/system.h>
 #include <mach/pxa-regs.h>
 #include <mach/pxa2xx-regs.h>
+#include <asm/mach-types.h>
 
 #include <pcmcia/cs_types.h>
 #include <pcmcia/ss.h>
@@ -166,18 +167,32 @@ pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
 }
 #endif
 
+static void pxa2xx_configure_sockets(struct device *dev)
+{
+        struct pcmcia_low_level *ops = dev->platform_data;
+
+        /*
+         * We have at least one socket, so set MECR:CIT
+         * (Card Is There)
+         */
+        MECR |= MECR_CIT;
+
+        /* Set MECR:NOS (Number Of Sockets) */
+        if (ops->nr > 1 || machine_is_viper())
+                MECR |= MECR_NOS;
+        else
+                MECR &= ~MECR_NOS;
+}
+
 int __pxa2xx_drv_pcmcia_probe(struct device *dev)
 {
         int ret;
         struct pcmcia_low_level *ops;
-        int first, nr;
 
         if (!dev || !dev->platform_data)
                 return -ENODEV;
 
         ops = (struct pcmcia_low_level *)dev->platform_data;
-        first = ops->first;
-        nr = ops->nr;
 
         /* Provide our PXA2xx specific timing routines. */
         ops->set_timing  = pxa2xx_pcmcia_set_timing;
@@ -185,21 +200,10 @@ int __pxa2xx_drv_pcmcia_probe(struct device *dev)
         ops->frequency_change = pxa2xx_pcmcia_frequency_change;
 #endif
 
-        ret = soc_common_drv_pcmcia_probe(dev, ops, first, nr);
+        ret = soc_common_drv_pcmcia_probe(dev, ops, ops->first, ops->nr);
 
-        if (ret == 0) {
-                /*
-                 * We have at least one socket, so set MECR:CIT
-                 * (Card Is There)
-                 */
-                MECR |= MECR_CIT;
-
-                /* Set MECR:NOS (Number Of Sockets) */
-                if (nr > 1)
-                        MECR |= MECR_NOS;
-                else
-                        MECR &= ~MECR_NOS;
-        }
+        if (!ret)
+                pxa2xx_configure_sockets(dev);
 
         return ret;
 }
@@ -223,11 +227,7 @@ static int pxa2xx_drv_pcmcia_suspend(struct platform_device *dev, pm_message_t s
 
 static int pxa2xx_drv_pcmcia_resume(struct platform_device *dev)
 {
-        struct pcmcia_low_level *ops = dev->dev.platform_data;
-        int nr = ops ? ops->nr : 0;
-
-        MECR = nr > 1 ? MECR_CIT | MECR_NOS : (nr > 0 ? MECR_CIT : 0);
-
+        pxa2xx_configure_sockets(&dev->dev);
         return pcmcia_socket_dev_resume(&dev->dev);
 }
 
diff --git a/drivers/pcmcia/pxa2xx_viper.c b/drivers/pcmcia/pxa2xx_viper.c
new file mode 100644
index 000000000000..dd10481be7bf
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_viper.c
@@ -0,0 +1,179 @@
+/*
+ * VIPER PCMCIA support
+ *   Copyright 2004 Arcom Control Systems
+ *
+ * Maintained by Marc Zyngier <maz@misterjones.org>
+ *                            <marc.zyngier@altran.com>
+ *
+ * Based on:
+ *   iPAQ h2200 PCMCIA support
+ *   Copyright 2004 Koen Kooi <koen@vestingbar.nl>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/irq.h>
+
+#include <mach/pxa-regs.h>
+#include <mach/viper.h>
+#include <asm/mach-types.h>
+
+#include "soc_common.h"
+#include "pxa2xx_base.h"
+
+static struct pcmcia_irqs irqs[] = {
+        { 0, gpio_to_irq(VIPER_CF_CD_GPIO),  "PCMCIA_CD" }
+};
+
+static int viper_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+        unsigned long flags;
+
+        skt->irq = gpio_to_irq(VIPER_CF_RDY_GPIO);
+
+        if (gpio_request(VIPER_CF_CD_GPIO, "CF detect"))
+                goto err_request_cd;
+
+        if (gpio_request(VIPER_CF_RDY_GPIO, "CF ready"))
+                goto err_request_rdy;
+
+        if (gpio_request(VIPER_CF_POWER_GPIO, "CF power"))
+                goto err_request_pwr;
+
+        local_irq_save(flags);
+
+        /* GPIO 82 is the CF power enable line. initially off */
+        if (gpio_direction_output(VIPER_CF_POWER_GPIO, 0) ||
+            gpio_direction_input(VIPER_CF_CD_GPIO) ||
+            gpio_direction_input(VIPER_CF_RDY_GPIO)) {
+                local_irq_restore(flags);
+                goto err_dir;
+        }
+
+        local_irq_restore(flags);
+
+        return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+
+err_dir:
+        gpio_free(VIPER_CF_POWER_GPIO);
+err_request_pwr:
+        gpio_free(VIPER_CF_RDY_GPIO);
+err_request_rdy:
+        gpio_free(VIPER_CF_CD_GPIO);
+err_request_cd:
+        printk(KERN_ERR "viper: Failed to setup PCMCIA GPIOs\n");
+        return -1;
+}
+
+/*
+ * Release all resources.
+ */
+static void viper_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+        gpio_free(VIPER_CF_POWER_GPIO);
+        gpio_free(VIPER_CF_RDY_GPIO);
+        gpio_free(VIPER_CF_CD_GPIO);
+}
+
+static void viper_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+                                      struct pcmcia_state *state)
+{
+        state->detect = gpio_get_value(VIPER_CF_CD_GPIO) ? 0 : 1;
+        state->ready  = gpio_get_value(VIPER_CF_RDY_GPIO) ? 1 : 0;
+        state->bvd1   = 1;
+        state->bvd2   = 1;
+        state->wrprot = 0;
+        state->vs_3v  = 1; /* Can only apply 3.3V */
+        state->vs_Xv  = 0;
+}
+
+static int viper_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+                                         const socket_state_t *state)
+{
+        /* Silently ignore Vpp, output enable, speaker enable. */
+        viper_cf_rst(state->flags & SS_RESET);
+
+        /* Apply socket voltage */
+        switch (state->Vcc) {
+        case 0:
+                gpio_set_value(VIPER_CF_POWER_GPIO, 0);
+                break;
+        case 33:
+                gpio_set_value(VIPER_CF_POWER_GPIO, 1);
+                break;
+        default:
+                printk(KERN_ERR "%s: Unsupported Vcc:%d\n",
+                       __func__, state->Vcc);
+                return -1;
+        }
+
+        return 0;
+}
+
+static void viper_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+}
+
+static void viper_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+}
+
+static struct pcmcia_low_level viper_pcmcia_ops __initdata = {
+        .owner                  = THIS_MODULE,
+        .hw_init                = viper_pcmcia_hw_init,
+        .hw_shutdown            = viper_pcmcia_hw_shutdown,
+        .socket_state           = viper_pcmcia_socket_state,
+        .configure_socket       = viper_pcmcia_configure_socket,
+        .socket_init            = viper_pcmcia_socket_init,
+        .socket_suspend         = viper_pcmcia_socket_suspend,
+        .nr                     = 1,
+};
+
+static struct platform_device *viper_pcmcia_device;
+
+static int __init viper_pcmcia_init(void)
+{
+        int ret;
+
+        if (!machine_is_viper())
+                return -ENODEV;
+
+        viper_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+        if (!viper_pcmcia_device)
+                return -ENOMEM;
+
+        ret = platform_device_add_data(viper_pcmcia_device,
+                                       &viper_pcmcia_ops,
+                                       sizeof(viper_pcmcia_ops));
+
+        if (!ret)
+                ret = platform_device_add(viper_pcmcia_device);
+
+        if (ret)
+                platform_device_put(viper_pcmcia_device);
+
+        return ret;
+}
+
+static void __exit viper_pcmcia_exit(void)
+{
+        platform_device_unregister(viper_pcmcia_device);
+}
+
+module_init(viper_pcmcia_init);
+module_exit(viper_pcmcia_exit);
+
+MODULE_LICENSE("GPL");