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 000000000000..c2ecf1185e9e
--- /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;
+}