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81 lines
2.0 KiB
81 lines
2.0 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* linux/drivers/pcmcia/sa1100_neponset.c |
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* |
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* Neponset PCMCIA specific routines |
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*/ |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/device.h> |
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#include <linux/errno.h> |
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#include <linux/init.h> |
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#include <asm/mach-types.h> |
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#include "sa1111_generic.h" |
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#include "max1600.h" |
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/* |
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* Neponset uses the Maxim MAX1600, with the following connections: |
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* |
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* MAX1600 Neponset |
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* |
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* A0VCC SA-1111 GPIO A<1> |
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* A1VCC SA-1111 GPIO A<0> |
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* A0VPP CPLD NCR A0VPP |
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* A1VPP CPLD NCR A1VPP |
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* B0VCC SA-1111 GPIO A<2> |
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* B1VCC SA-1111 GPIO A<3> |
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* B0VPP ground (slot B is CF) |
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* B1VPP ground (slot B is CF) |
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* |
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* VX VCC (5V) |
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* VY VCC3_3 (3.3V) |
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* 12INA 12V |
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* 12INB ground (slot B is CF) |
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* |
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* The MAX1600 CODE pin is tied to ground, placing the device in |
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* "Standard Intel code" mode. Refer to the Maxim data sheet for |
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* the corresponding truth table. |
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*/ |
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static int neponset_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
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{ |
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struct max1600 *m; |
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int ret; |
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ret = max1600_init(skt->socket.dev.parent, &m, |
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skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A, |
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MAX1600_CODE_LOW); |
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if (ret == 0) |
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skt->driver_data = m; |
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return ret; |
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} |
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static int |
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neponset_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) |
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{ |
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struct max1600 *m = skt->driver_data; |
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int ret; |
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ret = sa1111_pcmcia_configure_socket(skt, state); |
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if (ret == 0) |
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ret = max1600_configure(m, state->Vcc, state->Vpp); |
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return ret; |
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} |
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static struct pcmcia_low_level neponset_pcmcia_ops = { |
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.owner = THIS_MODULE, |
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.hw_init = neponset_pcmcia_hw_init, |
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.configure_socket = neponset_pcmcia_configure_socket, |
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.first = 0, |
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.nr = 2, |
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}; |
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int pcmcia_neponset_init(struct sa1111_dev *sadev) |
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{ |
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sa11xx_drv_pcmcia_ops(&neponset_pcmcia_ops); |
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return sa1111_pcmcia_add(sadev, &neponset_pcmcia_ops, |
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sa11xx_drv_pcmcia_add_one); |
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}
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