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 0000000..7c57fdd
--- /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;
+}