1 files changed, 125 insertions, 0 deletions

diff --git a/drivers/pcmcia/sa1100_shannon.c b/drivers/pcmcia/sa1100_shannon.c
new file mode 100644
index 000000000000..7bc9e59c761f
--- /dev/null
+++ b/drivers/pcmcia/sa1100_shannon.c
@@ -0,0 +1,125 @@
+/*
+ * drivers/pcmcia/sa1100_shannon.c
+ *
+ * PCMCIA implementation routines for Shannon
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/arch/shannon.h>
+#include <asm/irq.h>
+#include "sa1100_generic.h"
+
+static struct pcmcia_irqs irqs[] = {
+        { 0, SHANNON_IRQ_GPIO_EJECT_0, "PCMCIA_CD_0" },
+        { 1, SHANNON_IRQ_GPIO_EJECT_1, "PCMCIA_CD_1" },
+};
+
+static int shannon_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+        /* All those are inputs */
+        GPDR &= ~(SHANNON_GPIO_EJECT_0 | SHANNON_GPIO_EJECT_1 | 
+                  SHANNON_GPIO_RDY_0 | SHANNON_GPIO_RDY_1);
+        GAFR &= ~(SHANNON_GPIO_EJECT_0 | SHANNON_GPIO_EJECT_1 | 
+                  SHANNON_GPIO_RDY_0 | SHANNON_GPIO_RDY_1);
+
+        skt->irq = skt->nr ? SHANNON_IRQ_GPIO_RDY_1 : SHANNON_IRQ_GPIO_RDY_0;
+
+        return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void shannon_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void
+shannon_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+                            struct pcmcia_state *state)
+{
+        unsigned long levels = GPLR;
+
+        switch (skt->nr) {
+        case 0:
+                state->detect = (levels & SHANNON_GPIO_EJECT_0) ? 0 : 1;
+                state->ready  = (levels & SHANNON_GPIO_RDY_0) ? 1 : 0;
+                state->wrprot = 0; /* Not available on Shannon. */
+                state->bvd1   = 1; 
+                state->bvd2   = 1; 
+                state->vs_3v  = 1; /* FIXME Can only apply 3.3V on Shannon. */
+                state->vs_Xv  = 0;
+                break;
+
+        case 1:
+                state->detect = (levels & SHANNON_GPIO_EJECT_1) ? 0 : 1;
+                state->ready  = (levels & SHANNON_GPIO_RDY_1) ? 1 : 0;
+                state->wrprot = 0; /* Not available on Shannon. */
+                state->bvd1   = 1; 
+                state->bvd2   = 1; 
+                state->vs_3v  = 1; /* FIXME Can only apply 3.3V on Shannon. */
+                state->vs_Xv  = 0;
+                break;
+        }
+}
+
+static int
+shannon_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+                                const socket_state_t *state)
+{
+        switch (state->Vcc) {
+        case 0: /* power off */
+                printk(KERN_WARNING "%s(): CS asked for 0V, still applying 3.3V..\n", __FUNCTION__);
+                break;
+        case 50:
+                printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V..\n", __FUNCTION__);
+        case 33:
+                break;
+        default:
+                printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
+                       __FUNCTION__, state->Vcc);
+                return -1;
+        }
+
+        printk(KERN_WARNING "%s(): Warning, Can't perform reset\n", __FUNCTION__);
+        
+        /* Silently ignore Vpp, output enable, speaker enable. */
+
+        return 0;
+}
+
+static void shannon_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void shannon_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+        soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static struct pcmcia_low_level shannon_pcmcia_ops = {
+        .owner                  = THIS_MODULE,
+        .hw_init                = shannon_pcmcia_hw_init,
+        .hw_shutdown            = shannon_pcmcia_hw_shutdown,
+        .socket_state           = shannon_pcmcia_socket_state,
+        .configure_socket       = shannon_pcmcia_configure_socket,
+
+        .socket_init            = shannon_pcmcia_socket_init,
+        .socket_suspend         = shannon_pcmcia_socket_suspend,
+};
+
+int __init pcmcia_shannon_init(struct device *dev)
+{
+        int ret = -ENODEV;
+
+        if (machine_is_shannon())
+                ret = sa11xx_drv_pcmcia_probe(dev, &shannon_pcmcia_ops, 0, 2);
+
+        return ret;
+}