--- /dev/null
+/*
+ * drivers/pcmcia/sa1100_trizeps.c
+ *
+ * PCMCIA implementation routines for Trizeps
+ *
+ * Authors:
+ * Andreas Hofer <ho@dsa-ac.de>,
+ * Peter Lueg <pl@dsa-ac.de>,
+ * Guennadi Liakhovetski <gl@dsa-ac.de>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h> // included trizeps.h
+#include <asm/system.h>
+#include <asm/irq.h>
+#include "sa1100_generic.h"
+
+#define NUMBER_OF_TRIZEPS_PCMCIA_SLOTS 1
+/**
+ *
+ *
+ ******************************************************/
+static int trizeps_pcmcia_init(struct pcmcia_init *init)
+{
+ int res;
+
+ /* Enable CF bus: */
+ TRIZEPS_BCR_clear(TRIZEPS_BCR1, TRIZEPS_nPCM_ENA_REG);
+
+ /* All those are inputs */
+ GPDR &= ~((GPIO_GPIO(TRIZEPS_GPIO_PCMCIA_CD0))
+ | (GPIO_GPIO(TRIZEPS_GPIO_PCMCIA_IRQ0)));
+
+ /* Set transition detect */
+// set_irq_type(SA1100_GPIO_TO_IRQ(GPIO_TRIZEPS_PCMCIA_CD0), IRQT_BOTHEDGE);
+ set_irq_type(TRIZEPS_IRQ_PCMCIA_IRQ0, IRQT_FALLING);
+
+ /* Register SOCKET interrupts */
+ /* WHY? */
+ set_irq_type(TRIZEPS_IRQ_PCMCIA_CD0, IRQT_NOEDGE);
+ res = request_irq( TRIZEPS_IRQ_PCMCIA_CD0, init->handler, SA_INTERRUPT, "PCMCIA_CD0", NULL );
+ if( res < 0 ) goto irq_err;
+
+ //MECR = 0x00060006; // Initialised on trizeps init
+
+ // return=sa1100_pcmcia_socket_count (sa1100_generic.c)
+ // -> number of PCMCIA Slots
+ // Slot 0 -> Trizeps PCMCIA
+ // Slot 1 -> Trizeps ISA-Bus
+ return NUMBER_OF_TRIZEPS_PCMCIA_SLOTS;
+
+ irq_err:
+ printk( KERN_ERR __FUNCTION__ ": PCMCIA Request for IRQ %u failed\n", TRIZEPS_IRQ_PCMCIA_CD0 );
+ return -1;
+}
+
+/**
+ *
+ *
+ ******************************************************/
+static int trizeps_pcmcia_shutdown(void)
+{
+ printk(">>>>>PCMCIA TRIZEPS shutdown\n");
+ /* disable IRQs */
+ free_irq(TRIZEPS_IRQ_PCMCIA_CD0, NULL );
+
+ /* Disable CF bus: */
+ TRIZEPS_BCR_set(TRIZEPS_BCR1, TRIZEPS_nPCM_ENA_REG);
+
+ return 0;
+}
+
+/**
+ *
+
+ ******************************************************/
+static int trizeps_pcmcia_socket_state(struct pcmcia_state_array
+ *state_array){
+ unsigned long levels;
+
+ if (state_array->size < NUMBER_OF_TRIZEPS_PCMCIA_SLOTS) return -1;
+
+ memset(state_array->state, 0,
+ (state_array->size)*sizeof(struct pcmcia_state));
+
+ levels = GPLR;
+
+ state_array->state[0].detect = ((levels & GPIO_GPIO(TRIZEPS_GPIO_PCMCIA_CD0)) == 0) ? 1 : 0;
+ state_array->state[0].ready = ((levels & GPIO_GPIO(TRIZEPS_GPIO_PCMCIA_IRQ0)) != 0) ? 1 : 0;
+ state_array->state[0].bvd1 = ((TRIZEPS_BCR1 & TRIZEPS_PCM_BVD1) !=0 ) ? 1 : 0;
+ state_array->state[0].bvd2 = ((TRIZEPS_BCR1 & TRIZEPS_PCM_BVD2) != 0) ? 1 : 0;
+ state_array->state[0].wrprot = 0; // not write protected
+ state_array->state[0].vs_3v = ((TRIZEPS_BCR1 & TRIZEPS_nPCM_VS1) == 0) ? 1 : 0; //VS1=0 -> vs_3v=1
+ state_array->state[0].vs_Xv = ((TRIZEPS_BCR1 & TRIZEPS_nPCM_VS2) == 0) ? 1 : 0; //VS2=0 -> vs_Xv=1
+
+ return 1; // success
+}
+
+/**
+ *
+ *
+ ******************************************************/
+static int trizeps_pcmcia_get_irq_info(struct pcmcia_irq_info *info){
+
+ switch (info->sock) {
+ case 0:
+ info->irq=TRIZEPS_IRQ_PCMCIA_IRQ0;
+ break;
+ case 1:
+ // MFTB2 use only one Slot
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+/**
+ *
+ *
+ ******************************************************/
+static int trizeps_pcmcia_configure_socket(const struct pcmcia_configure *configure)
+{
+ unsigned long flags;
+
+ if(configure->sock>1) return -1;
+
+ local_irq_save(flags);
+
+ switch (configure->vcc) {
+ case 0:
+ printk(">>> PCMCIA Power off\n");
+ TRIZEPS_BCR_clear(TRIZEPS_BCR1, TRIZEPS_PCM_V3_EN_REG);
+ TRIZEPS_BCR_clear(TRIZEPS_BCR1, TRIZEPS_PCM_V5_EN_REG);
+ break;
+
+ case 33:
+ // 3.3V Power on
+ TRIZEPS_BCR_clear(TRIZEPS_BCR1, TRIZEPS_PCM_V3_EN_REG);
+ TRIZEPS_BCR_set(TRIZEPS_BCR1, TRIZEPS_PCM_V5_EN_REG);
+ break;
+ case 50:
+ // 5.0V Power on
+ TRIZEPS_BCR_set(TRIZEPS_BCR1, TRIZEPS_PCM_V3_EN_REG);
+ TRIZEPS_BCR_clear(TRIZEPS_BCR1, TRIZEPS_PCM_V5_EN_REG);
+ break;
+ default:
+ printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
+ configure->vcc);
+ local_irq_restore(flags);
+ return -1;
+ }
+
+ if (configure->reset)
+ TRIZEPS_BCR_set(TRIZEPS_BCR1, TRIZEPS_nPCM_RESET_DISABLE); // Reset
+ else
+ TRIZEPS_BCR_clear(TRIZEPS_BCR1, TRIZEPS_nPCM_RESET_DISABLE); // no Reset
+ /*
+ printk(" vcc=%u vpp=%u -->reset=%i\n",
+ configure->vcc,
+ configure->vpp,
+ ((BCR_read(1) & nPCM_RESET_DISABLE)? 1:0));
+ */
+ local_irq_restore(flags);
+
+ if (configure->irq) {
+ enable_irq(TRIZEPS_IRQ_PCMCIA_CD0);
+ enable_irq(TRIZEPS_IRQ_PCMCIA_IRQ0);
+ } else {
+ disable_irq(TRIZEPS_IRQ_PCMCIA_IRQ0);
+ disable_irq(TRIZEPS_IRQ_PCMCIA_CD0);
+ }
+
+ return 0;
+}
+
+static int trizeps_pcmcia_socket_init(int sock)
+{
+ return 0;
+}
+
+static int trizeps_pcmcia_socket_suspend(int sock)
+{
+ return 0;
+}
+
+/**
+ * low-level PCMCIA interface
+ *
+ ******************************************************/
+struct pcmcia_low_level trizeps_pcmcia_ops = {
+ init: trizeps_pcmcia_init,
+ shutdown: trizeps_pcmcia_shutdown,
+ socket_state: trizeps_pcmcia_socket_state,
+ get_irq_info: trizeps_pcmcia_get_irq_info,
+ configure_socket: trizeps_pcmcia_configure_socket,
+ socket_init: trizeps_pcmcia_socket_init,
+ socket_suspend: trizeps_pcmcia_socket_suspend,
+};
+
+int __init pcmcia_trizeps_init(void)
+{
+ if (machine_is_trizeps()) {
+ return sa1100_register_pcmcia(&trizeps_pcmcia_ops);
+ }
+ return -ENODEV;
+}
+
+void __exit pcmcia_trizeps_exit(void)
+{
+ sa1100_unregister_pcmcia(&trizeps_pcmcia_ops);
+}
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