// SPDX-License-Identifier: GPL-2.0 /* * linux/drivers/pcmcia/sa1100_neponset.c * * Neponset PCMCIA specific routines */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/device.h> #include <linux/errno.h> #include <linux/init.h> #include <asm/mach-types.h> #include "sa1111_generic.h" #include "max1600.h" /* * 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. */ static int neponset_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { struct max1600 *m; int ret; ret = max1600_init(skt->socket.dev.parent, &m, skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A, MAX1600_CODE_LOW); if (ret == 0) skt->driver_data = m; return ret; } static int neponset_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { struct max1600 *m = skt->driver_data; int ret; ret = sa1111_pcmcia_configure_socket(skt, state); if (ret == 0) ret = max1600_configure(m, state->Vcc, state->Vpp); return ret; } static struct pcmcia_low_level neponset_pcmcia_ops = { .owner = THIS_MODULE, .hw_init = neponset_pcmcia_hw_init, .configure_socket = neponset_pcmcia_configure_socket, .first = 0, .nr = 2, }; int pcmcia_neponset_init(struct sa1111_dev *sadev) { sa11xx_drv_pcmcia_ops(&neponset_pcmcia_ops); return sa1111_pcmcia_add(sadev, &neponset_pcmcia_ops, sa11xx_drv_pcmcia_add_one); }