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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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0833c76bd8
Tested with CoLo v1.22 Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/807/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
/*
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* Setup pointers to hardware dependent routines.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org)
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* Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
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*
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*/
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/ioport.h>
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#include <linux/pm.h>
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#include <asm/bootinfo.h>
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#include <asm/reboot.h>
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#include <asm/gt64120.h>
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#include <cobalt.h>
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extern void cobalt_machine_restart(char *command);
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extern void cobalt_machine_halt(void);
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const char *get_system_type(void)
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{
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switch (cobalt_board_id) {
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case COBALT_BRD_ID_QUBE1:
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return "Cobalt Qube";
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case COBALT_BRD_ID_RAQ1:
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return "Cobalt RaQ";
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case COBALT_BRD_ID_QUBE2:
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return "Cobalt Qube2";
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case COBALT_BRD_ID_RAQ2:
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return "Cobalt RaQ2";
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}
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return "MIPS Cobalt";
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}
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/*
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* Cobalt doesn't have PS/2 keyboard/mouse interfaces,
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* keyboard conntroller is never used.
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* Also PCI-ISA bridge DMA contoroller is never used.
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*/
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static struct resource cobalt_reserved_resources[] = {
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{ /* dma1 */
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.start = 0x00,
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.end = 0x1f,
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.name = "reserved",
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.flags = IORESOURCE_BUSY | IORESOURCE_IO,
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},
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{ /* keyboard */
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.start = 0x60,
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.end = 0x6f,
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.name = "reserved",
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.flags = IORESOURCE_BUSY | IORESOURCE_IO,
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},
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{ /* dma page reg */
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.start = 0x80,
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.end = 0x8f,
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.name = "reserved",
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.flags = IORESOURCE_BUSY | IORESOURCE_IO,
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},
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{ /* dma2 */
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.start = 0xc0,
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.end = 0xdf,
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.name = "reserved",
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.flags = IORESOURCE_BUSY | IORESOURCE_IO,
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},
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};
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void __init plat_mem_setup(void)
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{
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int i;
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_machine_restart = cobalt_machine_restart;
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_machine_halt = cobalt_machine_halt;
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pm_power_off = cobalt_machine_halt;
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set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE));
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/* I/O port resource */
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ioport_resource.end = 0x01ffffff;
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/* These resources have been reserved by VIA SuperI/O chip. */
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for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++)
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request_resource(&ioport_resource, cobalt_reserved_resources + i);
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}
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/*
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* Prom init. We read our one and only communication with the firmware.
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* Grab the amount of installed memory.
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* Better boot loaders (CoLo) pass a command line too :-)
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*/
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void __init prom_init(void)
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{
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unsigned long memsz;
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int argc, i;
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char **argv;
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memsz = fw_arg0 & 0x7fff0000;
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argc = fw_arg0 & 0x0000ffff;
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argv = (char **)fw_arg1;
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for (i = 1; i < argc; i++) {
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strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
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if (i < (argc - 1))
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strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
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}
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add_memory_region(0x0, memsz, BOOT_MEM_RAM);
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}
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void __init prom_free_prom_memory(void)
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{
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/* Nothing to do! */
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}
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