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 00000000000..7bc9e59c761
--- /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;
+}