MIPS: Set io_map_base for several PCI bridges lacking it

Several MIPS platforms don't set pci_controller::io_map_base for their
PCI bridges.  This results in a panic in pci_iomap().  (The panic is
conditional on CONFIG_PCI_DOMAINS, but that is now enabled for all PCI
MIPS systems.)

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: linux-mips@linux-mips.org
Cc: Martin Michlmayr <tbm@cyrius.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: 584784@bugs.debian.org
Patchwork: https://patchwork.linux-mips.org/patch/1377/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

5 files changed, 6 insertions, 1 deletions

diff --git a/arch/mips/mti-malta/malta-pci.c b/arch/mips/mti-malta/malta-pci.c
index 2fbfa1a8c3a9..bf80921f2f56 100644
--- a/arch/mips/mti-malta/malta-pci.c
+++ b/arch/mips/mti-malta/malta-pci.c
@@ -247,6 +247,8 @@ void __init mips_pcibios_init(void)
         iomem_resource.end &= 0xfffffffffULL;                   /* 64 GB */
         ioport_resource.end = controller->io_resource->end;
 
+        controller->io_map_base = mips_io_port_base;
+
         register_pci_controller(controller);
 }
 
diff --git a/arch/mips/nxp/pnx8550/common/pci.c b/arch/mips/nxp/pnx8550/common/pci.c
index eee4f3dfc410..98e86ddb86cc 100644
--- a/arch/mips/nxp/pnx8550/common/pci.c
+++ b/arch/mips/nxp/pnx8550/common/pci.c
@@ -44,6 +44,7 @@ extern struct pci_ops pnx8550_pci_ops;
 
 static struct pci_controller pnx8550_controller = {
         .pci_ops        = &pnx8550_pci_ops,
+        .io_map_base    = PNX8550_PORT_BASE,
         .io_resource    = &pci_io_resource,
         .mem_resource   = &pci_mem_resource,
 };
diff --git a/arch/mips/nxp/pnx8550/common/setup.c b/arch/mips/nxp/pnx8550/common/setup.c
index 2aed50fef10f..64246c9c875c 100644
--- a/arch/mips/nxp/pnx8550/common/setup.c
+++ b/arch/mips/nxp/pnx8550/common/setup.c
@@ -113,7 +113,7 @@ void __init plat_mem_setup(void)
         PNX8550_GLB2_ENAB_INTA_O = 0;
 
         /* IO/MEM resources. */
-        set_io_port_base(KSEG1);
+        set_io_port_base(PNX8550_PORT_BASE);
         ioport_resource.start = 0;
         ioport_resource.end = ~0;
         iomem_resource.start = 0;
diff --git a/arch/mips/pci/ops-pmcmsp.c b/arch/mips/pci/ops-pmcmsp.c
index 04b31478a6d7..b7c03d80c88c 100644
--- a/arch/mips/pci/ops-pmcmsp.c
+++ b/arch/mips/pci/ops-pmcmsp.c
@@ -944,6 +944,7 @@ static struct pci_controller msp_pci_controller = {
         .pci_ops        = &msp_pci_ops,
         .mem_resource   = &pci_mem_resource,
         .mem_offset     = 0,
+        .io_map_base    = MSP_PCI_IOSPACE_BASE,
         .io_resource    = &pci_io_resource,
         .io_offset      = 0
 };
diff --git a/arch/mips/pci/pci-yosemite.c b/arch/mips/pci/pci-yosemite.c
index 0357946f30e6..cf5e1a25cb7d 100644
--- a/arch/mips/pci/pci-yosemite.c
+++ b/arch/mips/pci/pci-yosemite.c
@@ -54,6 +54,7 @@ static int __init pmc_yosemite_setup(void)
                 panic(ioremap_failed);
 
         set_io_port_base(io_v_base);
+        py_controller.io_map_base = io_v_base;
         TITAN_WRITE(RM9000x2_OCD_LKM7, TITAN_READ(RM9000x2_OCD_LKM7) | 1);
 
         ioport_resource.end = TITAN_IO_SIZE - 1;