sh: hook in struct pci_channel in sysdata

Store a struct pci_channel pointer in bus->sysdata. This makes whatever
struct pci_channel assigned to a bus available for sh4_pci_read() and
sh4_pci_write(). We also modify PCIBIOS_MIN_IO and PCIBIOS_MIN_MEM to
use bus->sysdata - this to gives us support for multiple pci channels.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 5c7a8f1d2d54..386587e08830 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -31,8 +31,10 @@ struct pci_channel {
  */
 extern struct pci_channel board_pci_channels[];
 
-#define PCIBIOS_MIN_IO          board_pci_channels->io_resource->start
-#define PCIBIOS_MIN_MEM         board_pci_channels->mem_resource->start
+/* ugly as hell, but makes drivers/pci/setup-res.c compile and work */
+#define __PCI_CHAN(bus)         ((struct pci_channel *)bus->sysdata)
+#define PCIBIOS_MIN_IO          __PCI_CHAN(bus)->io_resource->start
+#define PCIBIOS_MIN_MEM         __PCI_CHAN(bus)->mem_resource->start
 
 /*
  * I/O routine helpers