mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 12:56:41 +07:00
a8043ecb17
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
241 lines
6.1 KiB
C
241 lines
6.1 KiB
C
/*
|
|
* LASI Device Driver
|
|
*
|
|
* (c) Copyright 1999 Red Hat Software
|
|
* Portions (c) Copyright 1999 The Puffin Group Inc.
|
|
* Portions (c) Copyright 1999 Hewlett-Packard
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* by Alan Cox <alan@redhat.com> and
|
|
* Alex deVries <alex@onefishtwo.ca>
|
|
*/
|
|
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/module.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/hardware.h>
|
|
#include <asm/led.h>
|
|
|
|
#include "gsc.h"
|
|
|
|
|
|
#define LASI_VER 0xC008 /* LASI Version */
|
|
|
|
#define LASI_IO_CONF 0x7FFFE /* LASI primary configuration register */
|
|
#define LASI_IO_CONF2 0x7FFFF /* LASI secondary configuration register */
|
|
|
|
static void lasi_choose_irq(struct parisc_device *dev, void *ctrl)
|
|
{
|
|
int irq;
|
|
|
|
switch (dev->id.sversion) {
|
|
case 0x74: irq = 7; break; /* Centronics */
|
|
case 0x7B: irq = 13; break; /* Audio */
|
|
case 0x81: irq = 14; break; /* Lasi itself */
|
|
case 0x82: irq = 9; break; /* SCSI */
|
|
case 0x83: irq = 20; break; /* Floppy */
|
|
case 0x84: irq = 26; break; /* PS/2 Keyboard */
|
|
case 0x87: irq = 18; break; /* ISDN */
|
|
case 0x8A: irq = 8; break; /* LAN */
|
|
case 0x8C: irq = 5; break; /* RS232 */
|
|
case 0x8D: irq = (dev->hw_path == 13) ? 16 : 17; break;
|
|
/* Telephone */
|
|
default: return; /* unknown */
|
|
}
|
|
|
|
gsc_asic_assign_irq(ctrl, irq, &dev->irq);
|
|
}
|
|
|
|
static void __init
|
|
lasi_init_irq(struct gsc_asic *this_lasi)
|
|
{
|
|
unsigned long lasi_base = this_lasi->hpa;
|
|
|
|
/* Stop LASI barking for a bit */
|
|
gsc_writel(0x00000000, lasi_base+OFFSET_IMR);
|
|
|
|
/* clear pending interrupts */
|
|
gsc_readl(lasi_base+OFFSET_IRR);
|
|
|
|
/* We're not really convinced we want to reset the onboard
|
|
* devices. Firmware does it for us...
|
|
*/
|
|
|
|
/* Resets */
|
|
/* gsc_writel(0xFFFFFFFF, lasi_base+0x2000);*/ /* Parallel */
|
|
if(pdc_add_valid(lasi_base+0x4004) == PDC_OK)
|
|
gsc_writel(0xFFFFFFFF, lasi_base+0x4004); /* Audio */
|
|
/* gsc_writel(0xFFFFFFFF, lasi_base+0x5000);*/ /* Serial */
|
|
/* gsc_writel(0xFFFFFFFF, lasi_base+0x6000);*/ /* SCSI */
|
|
gsc_writel(0xFFFFFFFF, lasi_base+0x7000); /* LAN */
|
|
gsc_writel(0xFFFFFFFF, lasi_base+0x8000); /* Keyboard */
|
|
gsc_writel(0xFFFFFFFF, lasi_base+0xA000); /* FDC */
|
|
|
|
/* Ok we hit it on the head with a hammer, our Dog is now
|
|
** comatose and muzzled. Devices will now unmask LASI
|
|
** interrupts as they are registered as irq's in the LASI range.
|
|
*/
|
|
/* XXX: I thought it was `awks that got `it on the `ead with an
|
|
* `ammer. -- willy
|
|
*/
|
|
}
|
|
|
|
|
|
/*
|
|
** lasi_led_init()
|
|
**
|
|
** lasi_led_init() initializes the LED controller on the LASI.
|
|
**
|
|
** Since Mirage and Electra machines use a different LED
|
|
** address register, we need to check for these machines
|
|
** explicitly.
|
|
*/
|
|
|
|
#ifndef CONFIG_CHASSIS_LCD_LED
|
|
|
|
#define lasi_led_init(x) /* nothing */
|
|
|
|
#else
|
|
|
|
void __init lasi_led_init(unsigned long lasi_hpa)
|
|
{
|
|
unsigned long datareg;
|
|
|
|
switch (CPU_HVERSION) {
|
|
/* Gecko machines have only one single LED, which can be permanently
|
|
turned on by writing a zero into the power control register. */
|
|
case 0x600: /* Gecko (712/60) */
|
|
case 0x601: /* Gecko (712/80) */
|
|
case 0x602: /* Gecko (712/100) */
|
|
case 0x603: /* Anole 64 (743/64) */
|
|
case 0x604: /* Anole 100 (743/100) */
|
|
case 0x605: /* Gecko (712/120) */
|
|
datareg = lasi_hpa + 0x0000C000;
|
|
gsc_writeb(0, datareg);
|
|
return; /* no need to register the LED interrupt-function */
|
|
|
|
/* Mirage and Electra machines need special offsets */
|
|
case 0x60A: /* Mirage Jr (715/64) */
|
|
case 0x60B: /* Mirage 100 */
|
|
case 0x60C: /* Mirage 100+ */
|
|
case 0x60D: /* Electra 100 */
|
|
case 0x60E: /* Electra 120 */
|
|
datareg = lasi_hpa - 0x00020000;
|
|
break;
|
|
|
|
default:
|
|
datareg = lasi_hpa + 0x0000C000;
|
|
break;
|
|
}
|
|
|
|
register_led_driver(DISPLAY_MODEL_LASI, LED_CMD_REG_NONE, datareg);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* lasi_power_off
|
|
*
|
|
* Function for lasi to turn off the power. This is accomplished by setting a
|
|
* 1 to PWR_ON_L in the Power Control Register
|
|
*
|
|
*/
|
|
|
|
static unsigned long lasi_power_off_hpa __read_mostly;
|
|
|
|
static void lasi_power_off(void)
|
|
{
|
|
unsigned long datareg;
|
|
|
|
/* calculate addr of the Power Control Register */
|
|
datareg = lasi_power_off_hpa + 0x0000C000;
|
|
|
|
/* Power down the machine */
|
|
gsc_writel(0x02, datareg);
|
|
}
|
|
|
|
int __init
|
|
lasi_init_chip(struct parisc_device *dev)
|
|
{
|
|
extern void (*chassis_power_off)(void);
|
|
struct gsc_asic *lasi;
|
|
struct gsc_irq gsc_irq;
|
|
int ret;
|
|
|
|
lasi = kzalloc(sizeof(*lasi), GFP_KERNEL);
|
|
if (!lasi)
|
|
return -ENOMEM;
|
|
|
|
lasi->name = "Lasi";
|
|
lasi->hpa = dev->hpa.start;
|
|
|
|
/* Check the 4-bit (yes, only 4) version register */
|
|
lasi->version = gsc_readl(lasi->hpa + LASI_VER) & 0xf;
|
|
printk(KERN_INFO "%s version %d at 0x%lx found.\n",
|
|
lasi->name, lasi->version, lasi->hpa);
|
|
|
|
/* initialize the chassis LEDs really early */
|
|
lasi_led_init(lasi->hpa);
|
|
|
|
/* Stop LASI barking for a bit */
|
|
lasi_init_irq(lasi);
|
|
|
|
/* the IRQ lasi should use */
|
|
dev->irq = gsc_alloc_irq(&gsc_irq);
|
|
if (dev->irq < 0) {
|
|
printk(KERN_ERR "%s(): cannot get GSC irq\n",
|
|
__func__);
|
|
kfree(lasi);
|
|
return -EBUSY;
|
|
}
|
|
|
|
lasi->eim = ((u32) gsc_irq.txn_addr) | gsc_irq.txn_data;
|
|
|
|
ret = request_irq(gsc_irq.irq, gsc_asic_intr, 0, "lasi", lasi);
|
|
if (ret < 0) {
|
|
kfree(lasi);
|
|
return ret;
|
|
}
|
|
|
|
/* enable IRQ's for devices below LASI */
|
|
gsc_writel(lasi->eim, lasi->hpa + OFFSET_IAR);
|
|
|
|
/* Done init'ing, register this driver */
|
|
ret = gsc_common_setup(dev, lasi);
|
|
if (ret) {
|
|
kfree(lasi);
|
|
return ret;
|
|
}
|
|
|
|
gsc_fixup_irqs(dev, lasi, lasi_choose_irq);
|
|
|
|
/* initialize the power off function */
|
|
/* FIXME: Record the LASI HPA for the power off function. This should
|
|
* ensure that only the first LASI (the one controlling the power off)
|
|
* should set the HPA here */
|
|
lasi_power_off_hpa = lasi->hpa;
|
|
chassis_power_off = lasi_power_off;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct parisc_device_id lasi_tbl[] = {
|
|
{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00081 },
|
|
{ 0, }
|
|
};
|
|
|
|
struct parisc_driver lasi_driver = {
|
|
.name = "lasi",
|
|
.id_table = lasi_tbl,
|
|
.probe = lasi_init_chip,
|
|
};
|