| /* |
| * linux/drivers/pcmcia/sa1100_neponset.c |
| * |
| * Neponset PCMCIA specific routines |
| */ |
| #include <linux/kernel.h> |
| #include <linux/sched.h> |
| |
| #include <asm/hardware.h> |
| #include <asm/arch/assabet.h> |
| #include <asm/hardware/sa1111.h> |
| |
| #include "sa1100_generic.h" |
| #include "sa1111_generic.h" |
| |
| static int neponset_pcmcia_init(struct pcmcia_init *init) |
| { |
| /* Set GPIO_A<3:0> to be outputs for PCMCIA/CF power controller: */ |
| PA_DDR &= ~(GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3); |
| |
| /* MAX1600 to standby mode: */ |
| PA_DWR &= ~(GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3); |
| NCR_0 &= ~(NCR_A0VPP | NCR_A1VPP); |
| |
| return sa1111_pcmcia_init(init); |
| } |
| |
| static int |
| neponset_pcmcia_configure_socket(const struct pcmcia_configure *conf) |
| { |
| unsigned int ncr_mask, pa_dwr_mask; |
| unsigned int ncr_set, pa_dwr_set; |
| int ret; |
| |
| /* Neponset uses the Maxim MAX1600, with the following connections: |
| |
| * MAX1600 Neponset |
| * |
| * A0VCC SA-1111 GPIO A<1> |
| * A1VCC SA-1111 GPIO A<0> |
| * A0VPP CPLD NCR A0VPP |
| * A1VPP CPLD NCR A1VPP |
| * B0VCC SA-1111 GPIO A<2> |
| * B1VCC SA-1111 GPIO A<3> |
| * B0VPP ground (slot B is CF) |
| * B1VPP ground (slot B is CF) |
| * |
| * VX VCC (5V) |
| * VY VCC3_3 (3.3V) |
| * 12INA 12V |
| * 12INB ground (slot B is CF) |
| * |
| * The MAX1600 CODE pin is tied to ground, placing the device in |
| * "Standard Intel code" mode. Refer to the Maxim data sheet for |
| * the corresponding truth table. |
| */ |
| |
| switch (conf->sock) { |
| case 0: |
| pa_dwr_mask = GPIO_GPIO0 | GPIO_GPIO1; |
| ncr_mask = NCR_A0VPP | NCR_A1VPP; |
| |
| switch (conf->vcc) { |
| default: |
| case 0: pa_dwr_set = 0; break; |
| case 33: pa_dwr_set = GPIO_GPIO1; break; |
| case 50: pa_dwr_set = GPIO_GPIO0; break; |
| } |
| |
| switch (conf->vpp) { |
| case 0: ncr_set = 0; break; |
| case 120: ncr_set = NCR_A1VPP; break; |
| default: |
| if (conf->vpp == conf->vcc) |
| ncr_set = NCR_A0VPP; |
| else { |
| printk(KERN_ERR "%s(): unrecognized VPP %u\n", |
| __FUNCTION__, conf->vpp); |
| return -1; |
| } |
| } |
| break; |
| |
| case 1: |
| pa_dwr_mask = GPIO_GPIO2 | GPIO_GPIO3; |
| ncr_mask = 0; |
| ncr_set = 0; |
| |
| switch (conf->vcc) { |
| default: |
| case 0: pa_dwr_set = 0; break; |
| case 33: pa_dwr_set = GPIO_GPIO2; break; |
| case 50: pa_dwr_set = GPIO_GPIO3; break; |
| } |
| |
| if (conf->vpp != conf->vcc && conf->vpp != 0) { |
| printk(KERN_ERR "%s(): CF slot cannot support VPP %u\n", |
| __FUNCTION__, conf->vpp); |
| return -1; |
| } |
| break; |
| |
| default: |
| return -1; |
| } |
| |
| ret = sa1111_pcmcia_configure_socket(conf); |
| if (ret == 0) { |
| unsigned long flags; |
| |
| local_irq_save(flags); |
| NCR_0 = (NCR_0 & ~ncr_mask) | ncr_set; |
| PA_DWR = (PA_DWR & ~pa_dwr_mask) | pa_dwr_set; |
| local_irq_restore(flags); |
| } |
| |
| return 0; |
| } |
| |
| struct pcmcia_low_level neponset_pcmcia_ops = { |
| init: neponset_pcmcia_init, |
| shutdown: sa1111_pcmcia_shutdown, |
| socket_state: sa1111_pcmcia_socket_state, |
| get_irq_info: sa1111_pcmcia_get_irq_info, |
| configure_socket: neponset_pcmcia_configure_socket, |
| |
| socket_init: sa1111_pcmcia_socket_init, |
| socket_suspend: sa1111_pcmcia_socket_suspend, |
| }; |