/* * ip22-hpc.c: Routines for generic manipulation of the HPC controllers. * * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) * 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; }