1 files changed, 141 insertions, 0 deletions

diff --git a/drivers/pcmcia/sa1100_assabet.c b/drivers/pcmcia/sa1100_assabet.c
new file mode 100644
index 000000000000..7c57fdd3c8d7
--- /dev/null
+++ b/drivers/pcmcia/sa1100_assabet.c
@@ -0,0 +1,141 @@
+/*
+ * drivers/pcmcia/sa1100_assabet.c
+ *
+ * PCMCIA implementation routines for Assabet
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/signal.h>
+#include <asm/arch/assabet.h>
+
+#include "sa1100_generic.h"
+
+static struct pcmcia_irqs irqs[] = {
+        { 1, ASSABET_IRQ_GPIO_CF_CD,   "CF CD"   },
+        { 1, ASSABET_IRQ_GPIO_CF_BVD2, "CF BVD2" },
+        { 1, ASSABET_IRQ_GPIO_CF_BVD1, "CF BVD1" },
+};
+
+static int assabet_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+        skt->irq = ASSABET_IRQ_GPIO_CF_IRQ;
+
+        return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+/*
+ * Release all resources.
+ */
+static void assabet_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void
+assabet_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
+{
+        unsigned long levels = GPLR;
+
+        state->detect = (levels & ASSABET_GPIO_CF_CD) ? 0 : 1;
+        state->ready  = (levels & ASSABET_GPIO_CF_IRQ) ? 1 : 0;
+        state->bvd1   = (levels & ASSABET_GPIO_CF_BVD1) ? 1 : 0;
+        state->bvd2   = (levels & ASSABET_GPIO_CF_BVD2) ? 1 : 0;
+        state->wrprot = 0; /* Not available on Assabet. */
+        state->vs_3v  = 1; /* Can only apply 3.3V on Assabet. */
+        state->vs_Xv  = 0;
+}
+
+static int
+assabet_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+        unsigned int mask;
+
+        switch (state->Vcc) {
+        case 0:
+                mask = 0;
+                break;
+
+        case 50:
+                printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V...\n",
+                        __FUNCTION__);
+
+        case 33:  /* Can only apply 3.3V to the CF slot. */
+                mask = ASSABET_BCR_CF_PWR;
+                break;
+
+        default:
+                printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
+                        state->Vcc);
+                return -1;
+        }
+
+        /* Silently ignore Vpp, output enable, speaker enable. */
+
+        if (state->flags & SS_RESET)
+                mask |= ASSABET_BCR_CF_RST;
+
+        ASSABET_BCR_frob(ASSABET_BCR_CF_RST | ASSABET_BCR_CF_PWR, mask);
+
+        return 0;
+}
+
+/*
+ * Enable card status IRQs on (re-)initialisation.  This can
+ * be called at initialisation, power management event, or
+ * pcmcia event.
+ */
+static void assabet_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+        /*
+         * Enable CF bus
+         */
+        ASSABET_BCR_clear(ASSABET_BCR_CF_BUS_OFF);
+
+        soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+/*
+ * Disable card status IRQs on suspend.
+ */
+static void assabet_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+
+        /*
+         * Tristate the CF bus signals.  Also assert CF
+         * reset as per user guide page 4-11.
+         */
+        ASSABET_BCR_set(ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_CF_RST);
+}
+
+static struct pcmcia_low_level assabet_pcmcia_ops = { 
+        .owner                  = THIS_MODULE,
+
+        .hw_init                = assabet_pcmcia_hw_init,
+        .hw_shutdown            = assabet_pcmcia_hw_shutdown,
+
+        .socket_state           = assabet_pcmcia_socket_state,
+        .configure_socket       = assabet_pcmcia_configure_socket,
+
+        .socket_init            = assabet_pcmcia_socket_init,
+        .socket_suspend         = assabet_pcmcia_socket_suspend,
+};
+
+int __init pcmcia_assabet_init(struct device *dev)
+{
+        int ret = -ENODEV;
+
+        if (machine_is_assabet() && !machine_has_neponset())
+                ret = sa11xx_drv_pcmcia_probe(dev, &assabet_pcmcia_ops, 1, 1);
+
+        return ret;
+}