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path: root/drivers/pcmcia/sa1100_jornada720.c
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Diffstat (limited to 'drivers/pcmcia/sa1100_jornada720.c')
-rw-r--r--drivers/pcmcia/sa1100_jornada720.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/drivers/pcmcia/sa1100_jornada720.c b/drivers/pcmcia/sa1100_jornada720.c
new file mode 100644
index 000000000000..0a387106acb0
--- /dev/null
+++ b/drivers/pcmcia/sa1100_jornada720.c
@@ -0,0 +1,124 @@
+/*
+ * drivers/pcmcia/sa1100_jornada720.c
+ *
+ * Jornada720 PCMCIA specific routines
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/hardware/sa1111.h>
+#include <asm/mach-types.h>
+
+#include "sa1111_generic.h"
+
+#define SOCKET0_POWER GPIO_GPIO0
+#define SOCKET0_3V GPIO_GPIO2
+#define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3)
+#warning *** Does SOCKET1_3V actually do anything?
+#define SOCKET1_3V GPIO_GPIO3
+
+static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ /*
+ * What is all this crap for?
+ */
+ GRER |= 0x00000002;
+ /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
+ PA_DDR = 0;
+ PA_DWR = 0;
+ PA_SDR = 0;
+ PA_SSR = 0;
+
+ PB_DDR = 0;
+ PB_DWR = 0x01;
+ PB_SDR = 0;
+ PB_SSR = 0;
+
+ PC_DDR = 0x88;
+ PC_DWR = 0x20;
+ PC_SDR = 0;
+ PC_SSR = 0;
+
+ return sa1111_pcmcia_hw_init(skt);
+}
+
+static int
+jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+ unsigned int pa_dwr_mask, pa_dwr_set;
+ int ret;
+
+printk("%s(): config socket %d vcc %d vpp %d\n", __FUNCTION__,
+ 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",
+ __FUNCTION__, state->Vpp);
+ return -1;
+ }
+
+ ret = sa1111_pcmcia_configure_socket(skt, state);
+ if (ret == 0) {
+ unsigned long flags;
+
+ local_irq_save(flags);
+ PA_DWR = (PA_DWR & ~pa_dwr_mask) | pa_dwr_set;
+ local_irq_restore(flags);
+ }
+
+ return ret;
+}
+
+static struct pcmcia_low_level jornada720_pcmcia_ops = {
+ .owner = THIS_MODULE,
+ .hw_init = jornada720_pcmcia_hw_init,
+ .hw_shutdown = sa1111_pcmcia_hw_shutdown,
+ .socket_state = sa1111_pcmcia_socket_state,
+ .configure_socket = jornada720_pcmcia_configure_socket,
+
+ .socket_init = sa1111_pcmcia_socket_init,
+ .socket_suspend = sa1111_pcmcia_socket_suspend,
+};
+
+int __init pcmcia_jornada720_init(struct device *dev)
+{
+ int ret = -ENODEV;
+
+ if (machine_is_jornada720())
+ ret = sa11xx_drv_pcmcia_probe(dev, &jornada720_pcmcia_ops, 0, 2);
+
+ return ret;
+}