sh: Hook up ERR/PERR/SERR detection for SH7780 PCI host controllers.

These were never handled before, so implement some common infrastructure
to support them, then make use of that in the SH7780-specific code. In
practice there is little here that can not be generalized for SH4 parts,
which will be an incremental change as the 7780/7751 code is gradually
unified.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index bbd10cf79825..1de83f2161f7 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -29,9 +29,20 @@ struct pci_channel {
 
         unsigned int            index;
         unsigned int            need_domain_info;
+
+        /* Optional error handling */
+        struct timer_list       err_timer, serr_timer;
+        unsigned int            err_irq, serr_irq;
 };
 
+/* arch/sh/drivers/pci/pci.c */
 extern int register_pci_controller(struct pci_channel *hose);
+extern void pcibios_report_status(unsigned int status_mask, int warn);
+
+/* arch/sh/drivers/pci/common.c */
+extern void pcibios_enable_timers(struct pci_channel *hose);
+extern unsigned int pcibios_handle_status_errors(unsigned long addr,
+                                 unsigned int status, struct pci_channel *hose);
 extern int pci_is_66mhz_capable(struct pci_channel *hose,
                                 int top_bus, int current_bus);