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78 lines
2.1 KiB
78 lines
2.1 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* ip22-setup.c: SGI specific setup, including init of the feature struct. |
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* |
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* Copyright (C) 1996 David S. Miller ([email protected]) |
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* Copyright (C) 1997, 1998 Ralf Baechle ([email protected]) |
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*/ |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/kdev_t.h> |
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#include <linux/types.h> |
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#include <linux/console.h> |
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#include <linux/sched.h> |
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#include <linux/tty.h> |
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#include <asm/addrspace.h> |
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#include <asm/bcache.h> |
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#include <asm/bootinfo.h> |
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#include <asm/irq.h> |
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#include <asm/reboot.h> |
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#include <asm/time.h> |
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#include <asm/io.h> |
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#include <asm/traps.h> |
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#include <asm/sgialib.h> |
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#include <asm/sgi/mc.h> |
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#include <asm/sgi/hpc3.h> |
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#include <asm/sgi/ip22.h> |
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extern void ip22_be_init(void) __init; |
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void __init plat_mem_setup(void) |
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{ |
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char *ctype; |
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char *cserial; |
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board_be_init = ip22_be_init; |
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/* Init the INDY HPC I/O controller. Need to call this before |
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* fucking with the memory controller because it needs to know the |
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* boardID and whether this is a Guiness or a FullHouse machine. |
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*/ |
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sgihpc_init(); |
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/* Init INDY memory controller. */ |
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sgimc_init(); |
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#ifdef CONFIG_BOARD_SCACHE |
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/* Now enable boardcaches, if any. */ |
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indy_sc_init(); |
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#endif |
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/* Set EISA IO port base for Indigo2 |
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* ioremap cannot fail */ |
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set_io_port_base((unsigned long)ioremap(0x00080000, |
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0x1fffffff - 0x00080000)); |
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/* ARCS console environment variable is set to "g?" for |
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* graphics console, it is set to "d" for the first serial |
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* line and "d2" for the second serial line. |
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* |
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* Need to check if the case is 'g' but no keyboard: |
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* (ConsoleIn/Out = serial) |
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*/ |
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ctype = ArcGetEnvironmentVariable("console"); |
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cserial = ArcGetEnvironmentVariable("ConsoleOut"); |
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if ((ctype && *ctype == 'd') || (cserial && *cserial == 's')) { |
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static char options[8] __initdata; |
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char *baud = ArcGetEnvironmentVariable("dbaud"); |
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if (baud) |
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strcpy(options, baud); |
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add_preferred_console("ttyS", *(ctype + 1) == '2' ? 1 : 0, |
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baud ? options : NULL); |
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} else if (!ctype || *ctype != 'g') { |
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/* Use ARC if we don't want serial ('d') or graphics ('g'). */ |
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prom_flags |= PROM_FLAG_USE_AS_CONSOLE; |
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add_preferred_console("arc", 0, NULL); |
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} |
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}
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