mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-20 18:54:09 +08:00
19a8d6b760
04c81c7293("MIPS: PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks") moved the PCI IRQ fixup to the new host bridge map/swizzle_irq() hooks mechanism. Those hooks can also be called after boot, when all the __init/__initdata/__initconst sections have been freed. Therefore, functions called by them (and the data they refer to) must not be marked as __init/__initdata/__initconst lest compilation trigger section mismatch warnings. Fix all the board files map_irq() hooks by simply removing the respective __init/__initdata/__initconst section markers and by adding another persistent hook IRQ map for the txx9 board files. Fixes:04c81c7293("MIPS: PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Steve French <smfrench@gmail.com>
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
|
|
*
|
|
* BRIEF MODULE DESCRIPTION
|
|
* Board specific pci fixups.
|
|
*
|
|
* Copyright 2001 MontaVista Software Inc.
|
|
* Author: MontaVista Software, Inc.
|
|
* ppopov@mvista.com or source@mvista.com
|
|
*
|
|
* 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
|
|
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* 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.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
#include <linux/types.h>
|
|
#include <asm/txx9/pci.h>
|
|
#include <asm/txx9/jmr3927.h>
|
|
|
|
int jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
unsigned char irq = pin;
|
|
|
|
/* IRQ rotation (PICMG) */
|
|
irq--; /* 0-3 */
|
|
if (slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(23)) {
|
|
/* PCI CardSlot (IDSEL=A23, DevNu=12) */
|
|
/* PCIA => PCIC (IDSEL=A23) */
|
|
/* NOTE: JMR3927 JP1 must be set to OPEN */
|
|
irq = (irq + 2) % 4;
|
|
} else if (slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(22)) {
|
|
/* PCI CardSlot (IDSEL=A22, DevNu=11) */
|
|
/* PCIA => PCIA (IDSEL=A22) */
|
|
/* NOTE: JMR3927 JP1 must be set to OPEN */
|
|
irq = (irq + 0) % 4;
|
|
} else {
|
|
/* PCI Backplane */
|
|
if (txx9_pci_option & TXX9_PCI_OPT_PICMG)
|
|
irq = (irq + 33 - slot) % 4;
|
|
else
|
|
irq = (irq + 3 + slot) % 4;
|
|
}
|
|
irq++; /* 1-4 */
|
|
|
|
switch (irq) {
|
|
case 1:
|
|
irq = JMR3927_IRQ_IOC_PCIA;
|
|
break;
|
|
case 2:
|
|
irq = JMR3927_IRQ_IOC_PCIB;
|
|
break;
|
|
case 3:
|
|
irq = JMR3927_IRQ_IOC_PCIC;
|
|
break;
|
|
case 4:
|
|
irq = JMR3927_IRQ_IOC_PCID;
|
|
break;
|
|
}
|
|
|
|
/* Check OnBoard Ethernet (IDSEL=A24, DevNu=13) */
|
|
if (dev->bus->parent == NULL &&
|
|
slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(24))
|
|
irq = JMR3927_IRQ_ETHER0;
|
|
return irq;
|
|
}
|