mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 02:18:13 +07:00
d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
159 lines
3.7 KiB
C
159 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* linux/drivers/pcmcia/sa1100_badge4.c
|
|
*
|
|
* BadgePAD 4 PCMCIA specific routines
|
|
*
|
|
* Christopher Hoover <ch@hpl.hp.com>
|
|
*
|
|
* Copyright (C) 2002 Hewlett-Packard Company
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/device.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <mach/badge4.h>
|
|
#include <asm/hardware/sa1111.h>
|
|
|
|
#include "sa1111_generic.h"
|
|
|
|
/*
|
|
* BadgePAD 4 Details
|
|
*
|
|
* PCM Vcc:
|
|
*
|
|
* PCM Vcc on BadgePAD 4 can be jumpered for 3v3 (short pins 1 and 3
|
|
* on JP6) or 5v0 (short pins 3 and 5 on JP6).
|
|
*
|
|
* PCM Vpp:
|
|
*
|
|
* PCM Vpp on BadgePAD 4 can be jumpered for 12v0 (short pins 4 and 6
|
|
* on JP6) or tied to PCM Vcc (short pins 2 and 4 on JP6). N.B.,
|
|
* 12v0 operation requires that the power supply actually supply 12v0
|
|
* via pin 7 of JP7.
|
|
*
|
|
* CF Vcc:
|
|
*
|
|
* CF Vcc on BadgePAD 4 can be jumpered either for 3v3 (short pins 1
|
|
* and 2 on JP10) or 5v0 (short pins 2 and 3 on JP10).
|
|
*
|
|
* Unfortunately there's no way programmatically to determine how a
|
|
* given board is jumpered. This code assumes a default jumpering
|
|
* as described below.
|
|
*
|
|
* If the defaults aren't correct, you may override them with a pcmv
|
|
* setup argument: pcmv=<pcm vcc>,<pcm vpp>,<cf vcc>. The units are
|
|
* tenths of volts; e.g. pcmv=33,120,50 indicates 3v3 PCM Vcc, 12v0
|
|
* PCM Vpp, and 5v0 CF Vcc.
|
|
*
|
|
*/
|
|
|
|
static int badge4_pcmvcc = 50; /* pins 3 and 5 jumpered on JP6 */
|
|
static int badge4_pcmvpp = 50; /* pins 2 and 4 jumpered on JP6 */
|
|
static int badge4_cfvcc = 33; /* pins 1 and 2 jumpered on JP10 */
|
|
|
|
static void complain_about_jumpering(const char *whom,
|
|
const char *supply,
|
|
int given, int wanted)
|
|
{
|
|
printk(KERN_ERR
|
|
"%s: %s %d.%dV wanted but board is jumpered for %s %d.%dV operation"
|
|
"; re-jumper the board and/or use pcmv=xx,xx,xx\n",
|
|
whom, supply,
|
|
wanted / 10, wanted % 10,
|
|
supply,
|
|
given / 10, given % 10);
|
|
}
|
|
|
|
static int
|
|
badge4_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
|
|
{
|
|
int ret;
|
|
|
|
switch (skt->nr) {
|
|
case 0:
|
|
if ((state->Vcc != 0) &&
|
|
(state->Vcc != badge4_pcmvcc)) {
|
|
complain_about_jumpering(__func__, "pcmvcc",
|
|
badge4_pcmvcc, state->Vcc);
|
|
// Apply power regardless of the jumpering.
|
|
// return -1;
|
|
}
|
|
if ((state->Vpp != 0) &&
|
|
(state->Vpp != badge4_pcmvpp)) {
|
|
complain_about_jumpering(__func__, "pcmvpp",
|
|
badge4_pcmvpp, state->Vpp);
|
|
return -1;
|
|
}
|
|
break;
|
|
|
|
case 1:
|
|
if ((state->Vcc != 0) &&
|
|
(state->Vcc != badge4_cfvcc)) {
|
|
complain_about_jumpering(__func__, "cfvcc",
|
|
badge4_cfvcc, state->Vcc);
|
|
return -1;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
ret = sa1111_pcmcia_configure_socket(skt, state);
|
|
if (ret == 0) {
|
|
unsigned long flags;
|
|
int need5V;
|
|
|
|
local_irq_save(flags);
|
|
|
|
need5V = ((state->Vcc == 50) || (state->Vpp == 50));
|
|
|
|
badge4_set_5V(BADGE4_5V_PCMCIA_SOCK(skt->nr), need5V);
|
|
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct pcmcia_low_level badge4_pcmcia_ops = {
|
|
.owner = THIS_MODULE,
|
|
.configure_socket = badge4_pcmcia_configure_socket,
|
|
.first = 0,
|
|
.nr = 2,
|
|
};
|
|
|
|
int pcmcia_badge4_init(struct sa1111_dev *dev)
|
|
{
|
|
printk(KERN_INFO
|
|
"%s: badge4_pcmvcc=%d, badge4_pcmvpp=%d, badge4_cfvcc=%d\n",
|
|
__func__,
|
|
badge4_pcmvcc, badge4_pcmvpp, badge4_cfvcc);
|
|
|
|
sa11xx_drv_pcmcia_ops(&badge4_pcmcia_ops);
|
|
return sa1111_pcmcia_add(dev, &badge4_pcmcia_ops,
|
|
sa11xx_drv_pcmcia_add_one);
|
|
}
|
|
|
|
#ifndef MODULE
|
|
static int __init pcmv_setup(char *s)
|
|
{
|
|
int v[4];
|
|
|
|
s = get_options(s, ARRAY_SIZE(v), v);
|
|
|
|
if (v[0] >= 1) badge4_pcmvcc = v[1];
|
|
if (v[0] >= 2) badge4_pcmvpp = v[2];
|
|
if (v[0] >= 3) badge4_cfvcc = v[3];
|
|
|
|
return 1;
|
|
}
|
|
|
|
__setup("pcmv=", pcmv_setup);
|
|
#endif
|