linux/arch/mips/alchemy/devboards/pb1550/platform.c
Manuel Lauss 788144656b MIPS: Alchemy: Stop IRQ name sharing
Eliminate the sharing of IRQ names among the differenct Alchemy
variants.  IRQ numbers need no longer be hidden behind a
CONFIG_SOC_AU1XXX symbol: step 1 in my quest to make the Alchemy
code less reliant on a hardcoded subtype.

This patch also renames the GPIO irq number constants. It's really
an interrupt line, NOT a GPIO number!

Code which relied on certain irq numbers to have the same name
across all supported cpu subtypes is changed to determine current
cpu subtype at runtime; in some places this isn't possible so
a "compat" symbol is used.

Run-tested on DB1200.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27 12:52:53 +01:00

64 lines
2.1 KiB
C

/*
* Pb1550 board platform device registration
*
* Copyright (C) 2009 Manuel Lauss
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/init.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-pb1x00/pb1550.h>
#include "../platform.h"
static int __init pb1550_dev_init(void)
{
/* Pb1550, like all others, also has statuschange irqs; however they're
* wired up on one of the Au1550's shared GPIO201_205 line, which also
* services the PCMCIA card interrupts. So we ignore statuschange and
* use the GPIO201_205 exclusively for card interrupts, since a) pcmcia
* drivers are used to shared irqs and b) statuschange isn't really use-
* ful anyway.
*/
db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
PCMCIA_MEM_PSEUDO_PHYS,
PCMCIA_MEM_PSEUDO_PHYS + 0x00040000 - 1,
PCMCIA_IO_PSEUDO_PHYS,
PCMCIA_IO_PSEUDO_PHYS + 0x00001000 - 1,
AU1550_GPIO201_205_INT,
AU1550_GPIO0_INT,
0,
0,
0);
db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS + 0x00800000,
PCMCIA_ATTR_PSEUDO_PHYS + 0x00840000 - 1,
PCMCIA_MEM_PSEUDO_PHYS + 0x00800000,
PCMCIA_MEM_PSEUDO_PHYS + 0x00840000 - 1,
PCMCIA_IO_PSEUDO_PHYS + 0x00800000,
PCMCIA_IO_PSEUDO_PHYS + 0x00801000 - 1,
AU1550_GPIO201_205_INT,
AU1550_GPIO1_INT,
0,
0,
1);
return 0;
}
device_initcall(pb1550_dev_init);