mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-29 22:56:47 +07:00
79add62773
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
|
|
* ip22-hpc.c: Routines for generic manipulation of the HPC controllers.
|
|
*
|
|
* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
|
|
* Copyright (C) 1998 Ralf Baechle
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/sgi/hpc3.h>
|
|
#include <asm/sgi/ioc.h>
|
|
#include <asm/sgi/ip22.h>
|
|
|
|
struct hpc3_regs *hpc3c0, *hpc3c1;
|
|
|
|
EXPORT_SYMBOL(hpc3c0);
|
|
EXPORT_SYMBOL(hpc3c1);
|
|
|
|
struct sgioc_regs *sgioc;
|
|
|
|
EXPORT_SYMBOL(sgioc);
|
|
|
|
/* We need software copies of these because they are write only. */
|
|
u8 sgi_ioc_reset, sgi_ioc_write;
|
|
|
|
extern char *system_type;
|
|
|
|
void __init sgihpc_init(void)
|
|
{
|
|
/* ioremap can't fail */
|
|
hpc3c0 = (struct hpc3_regs *)
|
|
ioremap(HPC3_CHIP0_BASE, sizeof(struct hpc3_regs));
|
|
hpc3c1 = (struct hpc3_regs *)
|
|
ioremap(HPC3_CHIP1_BASE, sizeof(struct hpc3_regs));
|
|
/* IOC lives in PBUS PIO channel 6 */
|
|
sgioc = (struct sgioc_regs *)hpc3c0->pbus_extregs[6];
|
|
|
|
hpc3c0->pbus_piocfg[6][0] |= HPC3_PIOCFG_DS16;
|
|
if (ip22_is_fullhouse()) {
|
|
/* Full House comes with INT2 which lives in PBUS PIO
|
|
* channel 4 */
|
|
sgint = (struct sgint_regs *)hpc3c0->pbus_extregs[4];
|
|
system_type = "SGI Indigo2";
|
|
} else {
|
|
/* Guiness comes with INT3 which is part of IOC */
|
|
sgint = &sgioc->int3;
|
|
system_type = "SGI Indy";
|
|
}
|
|
|
|
sgi_ioc_reset = (SGIOC_RESET_PPORT | SGIOC_RESET_KBDMOUSE |
|
|
SGIOC_RESET_EISA | SGIOC_RESET_ISDN |
|
|
SGIOC_RESET_LC0OFF);
|
|
|
|
sgi_ioc_write = (SGIOC_WRITE_EASEL | SGIOC_WRITE_NTHRESH |
|
|
SGIOC_WRITE_TPSPEED | SGIOC_WRITE_EPSEL |
|
|
SGIOC_WRITE_U0AMODE | SGIOC_WRITE_U1AMODE);
|
|
|
|
sgioc->reset = sgi_ioc_reset;
|
|
sgioc->write = sgi_ioc_write;
|
|
}
|