1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/pcmcia/sa1100_simpad.c b/drivers/pcmcia/sa1100_simpad.c
new file mode 100644
index 0000000..c2ecf11
--- /dev/null
+++ b/drivers/pcmcia/sa1100_simpad.c
@@ -0,0 +1,135 @@
+/*
+ * drivers/pcmcia/sa1100_simpad.c
+ *
+ * PCMCIA implementation routines for simpad
+ *
+ */
+#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/irq.h>
+#include <asm/arch/simpad.h>
+#include "sa1100_generic.h"
+ 
+extern long get_cs3_shadow(void);
+extern void set_cs3_bit(int value); 
+extern void clear_cs3_bit(int value);
+
+static struct pcmcia_irqs irqs[] = {
+	{ 1, IRQ_GPIO_CF_CD, "CF_CD" },
+};
+
+static int simpad_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+
+	clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
+
+	skt->irq = IRQ_GPIO_CF_IRQ;
+
+	return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void simpad_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+	soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+
+	/* Disable CF bus: */
+	//set_cs3_bit(PCMCIA_BUFF_DIS);
+	clear_cs3_bit(PCMCIA_RESET);       
+}
+
+static void
+simpad_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+			   struct pcmcia_state *state)
+{
+	unsigned long levels = GPLR;
+	long cs3reg = get_cs3_shadow();
+
+	state->detect=((levels & GPIO_CF_CD)==0)?1:0;
+	state->ready=(levels & GPIO_CF_IRQ)?1:0;
+	state->bvd1=1; /* Not available on Simpad. */
+	state->bvd2=1; /* Not available on Simpad. */
+	state->wrprot=0; /* Not available on Simpad. */
+  
+	if((cs3reg & 0x0c) == 0x0c) {
+		state->vs_3v=0;
+		state->vs_Xv=0;
+	} else {
+		state->vs_3v=1;
+		state->vs_Xv=0;
+	}
+}
+
+static int
+simpad_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+			       const socket_state_t *state)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	/* Murphy: see table of MIC2562a-1 */
+	switch (state->Vcc) {
+	case 0:
+		clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
+		break;
+
+	case 33:  
+		clear_cs3_bit(VCC_3V_EN|EN1);
+		set_cs3_bit(VCC_5V_EN|EN0);
+		break;
+
+	case 50:
+		clear_cs3_bit(VCC_5V_EN|EN1);
+		set_cs3_bit(VCC_3V_EN|EN0);
+		break;
+
+	default:
+		printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
+			__FUNCTION__, state->Vcc);
+		clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
+		local_irq_restore(flags);
+		return -1;
+	}
+
+
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static void simpad_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+	soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void simpad_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+	soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+	set_cs3_bit(PCMCIA_RESET);
+}
+
+static struct pcmcia_low_level simpad_pcmcia_ops = { 
+	.owner			= THIS_MODULE,
+	.hw_init		= simpad_pcmcia_hw_init,
+	.hw_shutdown		= simpad_pcmcia_hw_shutdown,
+	.socket_state		= simpad_pcmcia_socket_state,
+	.configure_socket	= simpad_pcmcia_configure_socket,
+	.socket_init		= simpad_pcmcia_socket_init,
+	.socket_suspend		= simpad_pcmcia_socket_suspend,
+};
+
+int __init pcmcia_simpad_init(struct device *dev)
+{
+	int ret = -ENODEV;
+
+	if (machine_is_simpad())
+		ret = sa11xx_drv_pcmcia_probe(dev, &simpad_pcmcia_ops, 1, 1);
+
+	return ret;
+}