1 #warning "REVISIT_PFS168: Need to verify and test GPIO power encodings."
3 * drivers/pcmcia/sa1100_pfs168.c
5 * PFS168 PCMCIA specific routines
8 #include <linux/module.h>
9 #include <linux/kernel.h>
10 #include <linux/sched.h>
11 #include <linux/delay.h>
12 #include <linux/device.h>
13 #include <linux/init.h>
15 #include <asm/hardware.h>
16 #include <asm/mach-types.h>
19 #include "sa1111_generic.h"
21 static int pfs168_pcmcia_init(struct soc_pcmcia_socket *skt)
23 /* TPS2211 to standby mode: */
24 PA_DWR &= ~(GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3);
26 /* Set GPIO_A<3:0> to be outputs for PCMCIA (socket 0) power controller: */
27 PA_DDR &= ~(GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3);
29 return sa1111_pcmcia_init(skt);
33 pfs168_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
34 const socket_state_t *state)
36 unsigned int pa_dwr_mask = 0, pa_dwr_set = 0;
39 /* PFS168 uses the Texas Instruments TPS2211 for PCMCIA (socket 0) voltage control only,
40 * with the following connections:
44 * -VCCD0 SA-1111 GPIO A<0>
45 * -VCCD0 SA-1111 GPIO A<1>
46 * VPPD0 SA-1111 GPIO A<2>
47 * VPPD0 SA-1111 GPIO A<2>
53 pa_dwr_mask = GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3;
57 case 0: pa_dwr_set = 0; break;
58 case 33: pa_dwr_set = GPIO_GPIO0; break;
59 case 50: pa_dwr_set = GPIO_GPIO1; break;
67 printk(KERN_ERR "%s(): PFS-168 does not support VPP %uV\n",
68 __FUNCTION__, state->Vpp / 10);
73 if (state->Vpp == state->Vcc)
74 pa_dwr_set |= GPIO_GPIO3;
76 printk(KERN_ERR "%s(): unrecognized VPP %u\n", __FUNCTION__,
93 printk(KERN_ERR "%s(): PFS-168 CompactFlash socket does not support VCC %uV\n",
94 __FUNCTION__, state->Vcc / 10);
98 printk(KERN_ERR "%s(): unrecognized VCC %u\n", __FUNCTION__,
103 if (state->Vpp != state->Vcc && state->Vpp != 0) {
104 printk(KERN_ERR "%s(): CompactFlash socket does not support VPP %uV\n",
105 __FUNCTION__, state->Vpp / 10);
111 ret = sa1111_pcmcia_configure_socket(skt, state);
115 local_irq_save(flags);
116 PA_DWR = (PA_DWR & ~pa_dwr_mask) | pa_dwr_set;
117 local_irq_restore(flags);
123 static struct pcmcia_low_level pfs168_pcmcia_ops = {
124 .owner = THIS_MODULE,
125 .hw_init = pfs168_pcmcia_hw_init,
126 .hw_shutdown = sa1111_pcmcia_hw_shutdown,
127 .socket_state = sa1111_pcmcia_socket_state,
128 .configure_socket = pfs168_pcmcia_configure_socket,
129 .socket_init = sa1111_pcmcia_socket_init,
130 .socket_suspend = sa1111_pcmcia_socket_suspend,
133 int __init pcmcia_pfs168_init(struct device *dev)
137 if (machine_is_pfs168())
138 ret = sa11xx_drv_pcmcia_probe(dev, &pfs168_pcmcia_ops, 0, 2);