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- // 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);
- }
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