[MIPS] TXx9: Miscellaneous build fixes
* Fix build if only RBTX4927 or RBTX4938 was selected.
* Move gpio helpers to generic part.
* Select SOC_TX4938 for RBTX4927/37 board.
* Fix parent of rbtx4938_fpga_resource.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
index b92a134..6de4c5a 100644
--- a/arch/mips/txx9/Kconfig
+++ b/arch/mips/txx9/Kconfig
@@ -7,6 +7,8 @@
bool "Toshiba RBTX49[23]7 board"
depends on MACH_TX49XX
select SOC_TX4927
+ # TX4937 is subset of TX4938
+ select SOC_TX4938
help
This Toshiba board is based on the TX4927 processor. Say Y here to
support this machine type