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1// SPDX-License-Identifier: GPL-2.02/*3 * linux/drivers/pcmcia/sa1100_neponset.c4 *5 * Neponset PCMCIA specific routines6 */7#include <linux/module.h>8#include <linux/kernel.h>9#include <linux/device.h>10#include <linux/errno.h>11#include <linux/init.h>12 13#include <asm/mach-types.h>14 15#include "sa1111_generic.h"16#include "max1600.h"17 18/*19 * Neponset uses the Maxim MAX1600, with the following connections:20 *21 * MAX1600 Neponset22 *23 * A0VCC SA-1111 GPIO A<1>24 * A1VCC SA-1111 GPIO A<0>25 * A0VPP CPLD NCR A0VPP26 * A1VPP CPLD NCR A1VPP27 * B0VCC SA-1111 GPIO A<2>28 * B1VCC SA-1111 GPIO A<3>29 * B0VPP ground (slot B is CF)30 * B1VPP ground (slot B is CF)31 *32 * VX VCC (5V)33 * VY VCC3_3 (3.3V)34 * 12INA 12V35 * 12INB ground (slot B is CF)36 *37 * The MAX1600 CODE pin is tied to ground, placing the device in 38 * "Standard Intel code" mode. Refer to the Maxim data sheet for39 * the corresponding truth table.40 */41static int neponset_pcmcia_hw_init(struct soc_pcmcia_socket *skt)42{43 struct max1600 *m;44 int ret;45 46 ret = max1600_init(skt->socket.dev.parent, &m,47 skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A,48 MAX1600_CODE_LOW);49 if (ret == 0)50 skt->driver_data = m;51 52 return ret;53}54 55static int56neponset_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)57{58 struct max1600 *m = skt->driver_data;59 int ret;60 61 ret = sa1111_pcmcia_configure_socket(skt, state);62 if (ret == 0)63 ret = max1600_configure(m, state->Vcc, state->Vpp);64 65 return ret;66}67 68static struct pcmcia_low_level neponset_pcmcia_ops = {69 .owner = THIS_MODULE,70 .hw_init = neponset_pcmcia_hw_init,71 .configure_socket = neponset_pcmcia_configure_socket,72 .first = 0,73 .nr = 2,74};75 76int pcmcia_neponset_init(struct sa1111_dev *sadev)77{78 sa11xx_drv_pcmcia_ops(&neponset_pcmcia_ops);79 return sa1111_pcmcia_add(sadev, &neponset_pcmcia_ops,80 sa11xx_drv_pcmcia_add_one);81}82