Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / pcmcia / sa1111_jornada720.c

diff --git a/kernel/drivers/pcmcia/sa1111_jornada720.c b/kernel/drivers/pcmcia/sa1111_jornada720.c
new file mode 100644 (file)
index 0000000..c2c3058
--- /dev/null
+++ b/kernel/drivers/pcmcia/sa1111_jornada720.c
@@ -0,0 +1,115 @@
+/*
+ * drivers/pcmcia/sa1100_jornada720.c
+ *
+ * Jornada720 PCMCIA specific routines
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <asm/hardware/sa1111.h>
+#include <asm/mach-types.h>
+
+#include "sa1111_generic.h"
+
+/* Does SOCKET1_3V actually do anything? */
+#define SOCKET0_POWER  GPIO_GPIO0
+#define SOCKET0_3V     GPIO_GPIO2
+#define SOCKET1_POWER  (GPIO_GPIO1 | GPIO_GPIO3)
+#define SOCKET1_3V     GPIO_GPIO3
+
+static int
+jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+       struct sa1111_pcmcia_socket *s = to_skt(skt);
+       unsigned int pa_dwr_mask, pa_dwr_set;
+       int ret;
+
+       printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
+               skt->nr, state->Vcc, state->Vpp);
+
+       switch (skt->nr) {
+       case 0:
+               pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V;
+
+               switch (state->Vcc) {
+               default:
+               case  0:
+                       pa_dwr_set = 0;
+                       break;
+               case 33:
+                       pa_dwr_set = SOCKET0_POWER | SOCKET0_3V;
+                       break;
+               case 50:
+                       pa_dwr_set = SOCKET0_POWER;
+                       break;
+               }
+               break;
+
+       case 1:
+               pa_dwr_mask = SOCKET1_POWER;
+
+               switch (state->Vcc) {
+               default:
+               case 0:
+                       pa_dwr_set = 0;
+                       break;
+               case 33:
+                       pa_dwr_set = SOCKET1_POWER;
+                       break;
+               case 50:
+                       pa_dwr_set = SOCKET1_POWER;
+                       break;
+               }
+               break;
+
+       default:
+               return -1;
+       }
+
+       if (state->Vpp != state->Vcc && state->Vpp != 0) {
+               printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
+                       __func__, state->Vpp);
+               return -EPERM;
+       }
+
+       ret = sa1111_pcmcia_configure_socket(skt, state);
+       if (ret == 0)
+               sa1111_set_io(s->dev, pa_dwr_mask, pa_dwr_set);
+
+       return ret;
+}
+
+static struct pcmcia_low_level jornada720_pcmcia_ops = {
+       .owner                  = THIS_MODULE,
+       .configure_socket       = jornada720_pcmcia_configure_socket,
+       .first                  = 0,
+       .nr                     = 2,
+};
+
+int pcmcia_jornada720_init(struct sa1111_dev *sadev)
+{
+       int ret = -ENODEV;
+
+       if (machine_is_jornada720()) {
+               unsigned int pin = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3;
+
+               GRER |= 0x00000002;
+
+               /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
+               sa1111_set_io_dir(sadev, pin, 0, 0);
+               sa1111_set_io(sadev, pin, 0);
+               sa1111_set_sleep_io(sadev, pin, 0);
+
+               sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
+               ret = sa1111_pcmcia_add(sadev, &jornada720_pcmcia_ops,
+                               sa11xx_drv_pcmcia_add_one);
+       }
+
+       return ret;
+}