1 files changed, 110 insertions, 0 deletions

diff --git a/drivers/pcmcia/sa1100_cerf.c b/drivers/pcmcia/sa1100_cerf.c
new file mode 100644
index 000000000000..2b3c2895b43d
--- /dev/null
+++ b/drivers/pcmcia/sa1100_cerf.c
@@ -0,0 +1,110 @@
+/*
+ * drivers/pcmcia/sa1100_cerf.c
+ *
+ * PCMCIA implementation routines for CerfBoard
+ * Based off the Assabet.
+ *
+ */
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/arch/cerf.h>
+#include "sa1100_generic.h"
+
+#define CERF_SOCKET     1
+
+static struct pcmcia_irqs irqs[] = {
+        { CERF_SOCKET, CERF_IRQ_GPIO_CF_CD,   "CF_CD"   },
+        { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD2, "CF_BVD2" },
+        { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD1, "CF_BVD1" }
+};
+
+static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+        skt->irq = CERF_IRQ_GPIO_CF_IRQ;
+
+        return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void
+cerf_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
+{
+        unsigned long levels = GPLR;
+
+        state->detect   = (levels & CERF_GPIO_CF_CD)  ?0:1;
+        state->ready    = (levels & CERF_GPIO_CF_IRQ) ?1:0;
+        state->bvd1     = (levels & CERF_GPIO_CF_BVD1)?1:0;
+        state->bvd2     = (levels & CERF_GPIO_CF_BVD2)?1:0;
+        state->wrprot   = 0;
+        state->vs_3v    = 1;
+        state->vs_Xv    = 0;
+}
+
+static int
+cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+                             const socket_state_t *state)
+{
+        switch (state->Vcc) {
+        case 0:
+        case 50:
+        case 33:
+                break;
+
+        default:
+                printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
+                        __FUNCTION__, state->Vcc);
+                return -1;
+        }
+
+        if (state->flags & SS_RESET) {
+                GPSR = CERF_GPIO_CF_RESET;
+        } else {
+                GPCR = CERF_GPIO_CF_RESET;
+        }
+
+        return 0;
+}
+
+static void cerf_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void cerf_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static struct pcmcia_low_level cerf_pcmcia_ops = { 
+        .owner                  = THIS_MODULE,
+        .hw_init                = cerf_pcmcia_hw_init,
+        .hw_shutdown            = cerf_pcmcia_hw_shutdown,
+        .socket_state           = cerf_pcmcia_socket_state,
+        .configure_socket       = cerf_pcmcia_configure_socket,
+
+        .socket_init            = cerf_pcmcia_socket_init,
+        .socket_suspend         = cerf_pcmcia_socket_suspend,
+};
+
+int __init pcmcia_cerf_init(struct device *dev)
+{
+        int ret = -ENODEV;
+
+        if (machine_is_cerf())
+                ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1);
+
+        return ret;
+}