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path: root/drivers/pcmcia/sa1100_cerf.c
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Diffstat (limited to 'drivers/pcmcia/sa1100_cerf.c')
-rw-r--r--drivers/pcmcia/sa1100_cerf.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/pcmcia/sa1100_cerf.c b/drivers/pcmcia/sa1100_cerf.c
new file mode 100644
index 00000000000..2b3c2895b43
--- /dev/null
+++ b/drivers/pcmcia/sa1100_cerf.c
@@ -0,0 +1,110 @@
+/*
+ * drivers/pcmcia/sa1100_cerf.c
+ *
+ * PCMCIA implementation routines for CerfBoard
+ * Based off the Assabet.
+ *
+ */
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/arch/cerf.h>
+#include "sa1100_generic.h"
+
+#define CERF_SOCKET 1
+
+static struct pcmcia_irqs irqs[] = {
+ { CERF_SOCKET, CERF_IRQ_GPIO_CF_CD, "CF_CD" },
+ { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD2, "CF_BVD2" },
+ { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD1, "CF_BVD1" }
+};
+
+static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ skt->irq = CERF_IRQ_GPIO_CF_IRQ;
+
+ return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+ soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void
+cerf_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
+{
+ unsigned long levels = GPLR;
+
+ state->detect = (levels & CERF_GPIO_CF_CD) ?0:1;
+ state->ready = (levels & CERF_GPIO_CF_IRQ) ?1:0;
+ state->bvd1 = (levels & CERF_GPIO_CF_BVD1)?1:0;
+ state->bvd2 = (levels & CERF_GPIO_CF_BVD2)?1:0;
+ state->wrprot = 0;
+ state->vs_3v = 1;
+ state->vs_Xv = 0;
+}
+
+static int
+cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ switch (state->Vcc) {
+ case 0:
+ case 50:
+ case 33:
+ break;
+
+ default:
+ printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
+ __FUNCTION__, state->Vcc);
+ return -1;
+ }
+
+ if (state->flags & SS_RESET) {
+ GPSR = CERF_GPIO_CF_RESET;
+ } else {
+ GPCR = CERF_GPIO_CF_RESET;
+ }
+
+ return 0;
+}
+
+static void cerf_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+ soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void cerf_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+ soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static struct pcmcia_low_level cerf_pcmcia_ops = {
+ .owner = THIS_MODULE,
+ .hw_init = cerf_pcmcia_hw_init,
+ .hw_shutdown = cerf_pcmcia_hw_shutdown,
+ .socket_state = cerf_pcmcia_socket_state,
+ .configure_socket = cerf_pcmcia_configure_socket,
+
+ .socket_init = cerf_pcmcia_socket_init,
+ .socket_suspend = cerf_pcmcia_socket_suspend,
+};
+
+int __init pcmcia_cerf_init(struct device *dev)
+{
+ int ret = -ENODEV;
+
+ if (machine_is_cerf())
+ ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1);
+
+ return ret;
+}