diff options
Diffstat (limited to 'drivers/pcmcia/sa1111_jornada720.c')
-rw-r--r-- | drivers/pcmcia/sa1111_jornada720.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/pcmcia/sa1111_jornada720.c b/drivers/pcmcia/sa1111_jornada720.c new file mode 100644 index 000000000000..69428d1f5ae1 --- /dev/null +++ b/drivers/pcmcia/sa1111_jornada720.c @@ -0,0 +1,114 @@ +/* + * 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 <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 __devinit pcmcia_jornada720_init(struct device *dev) +{ + 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(dev, pin, 0, 0); + sa1111_set_io(dev, pin, 0); + sa1111_set_sleep_io(dev, pin, 0); + + sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops); + ret = sa1111_pcmcia_add(dev, &jornada720_pcmcia_ops, + sa11xx_drv_pcmcia_add_one); + } + + return ret; +} |