sh: sh7785lcr: fix PCI address map for 32-bit mode

Fix the problem that cannot work PCI device on 32-bit mode because
influence of the commit 68b42d1b548be1840aff7122fdebeb804daf0fa3
("sh: sh7785lcr: Map whole PCI address space."). So this patch was
implement like a 29-bit mode, map whole physical address space of
DDR-SDRAM.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2 files changed, 7 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/ops-sh7785lcr.c b/arch/sh/drivers/pci/ops-sh7785lcr.c
index e8b7446a7c2b..fb0869f0bef8 100644
--- a/arch/sh/drivers/pci/ops-sh7785lcr.c
+++ b/arch/sh/drivers/pci/ops-sh7785lcr.c
@@ -48,8 +48,13 @@ EXPORT_SYMBOL(board_pci_channels);
 
 static struct sh4_pci_address_map sh7785_pci_map = {
         .window0        = {
+#if defined(CONFIG_32BIT)
+                .base   = SH7780_32BIT_DDR_BASE_ADDR,
+                .size   = 0x40000000,
+#else
                 .base   = SH7780_CS0_BASE_ADDR,
                 .size   = 0x20000000,
+#endif
         },
 
         .flags  = SH4_PCIC_NO_RESET,
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h
index 97b2c98f05c4..93adc7119b79 100644
--- a/arch/sh/drivers/pci/pci-sh7780.h
+++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -104,6 +104,8 @@
 #define SH7780_CS5_BASE_ADDR    (SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE)
 #define SH7780_CS6_BASE_ADDR    (SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE)
 
+#define SH7780_32BIT_DDR_BASE_ADDR      0x40000000
+
 struct sh4_pci_address_map;
 
 /* arch/sh/drivers/pci/pci-sh7780.c */