[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>

3 files changed, 23 insertions, 13 deletions

diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
index b92a134ef124..6de4c5aa92be 100644
--- a/arch/mips/txx9/Kconfig
+++ b/arch/mips/txx9/Kconfig
@@ -7,6 +7,8 @@ config TOSHIBA_RBTX4927
         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
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 5afc5d5cab03..8caef07701bb 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -94,6 +94,22 @@ void clk_put(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_put);
 
+/* GPIO support */
+
+#ifdef CONFIG_GENERIC_GPIO
+int gpio_to_irq(unsigned gpio)
+{
+        return -EINVAL;
+}
+EXPORT_SYMBOL(gpio_to_irq);
+
+int irq_to_gpio(unsigned irq)
+{
+        return -EINVAL;
+}
+EXPORT_SYMBOL(irq_to_gpio);
+#endif
+
 extern struct txx9_board_vec jmr3927_vec;
 extern struct txx9_board_vec rbtx4927_vec;
 extern struct txx9_board_vec rbtx4937_vec;
@@ -126,15 +142,19 @@ void __init prom_init(void)
 #endif
 #ifdef CONFIG_CPU_TX49XX
         switch (TX4938_REV_PCODE()) {
+#ifdef CONFIG_TOSHIBA_RBTX4927
         case 0x4927:
                 txx9_board_vec = &rbtx4927_vec;
                 break;
         case 0x4937:
                 txx9_board_vec = &rbtx4937_vec;
                 break;
+#endif
+#ifdef CONFIG_TOSHIBA_RBTX4938
         case 0x4938:
                 txx9_board_vec = &rbtx4938_vec;
                 break;
+#endif
         }
 #endif
 
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index aaa987ae0f83..c2da92396b7a 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -457,7 +457,7 @@ static void __init rbtx4938_mem_setup(void)
         rbtx4938_fpga_resource.start = CPHYSADDR(RBTX4938_FPGA_REG_ADDR);
         rbtx4938_fpga_resource.end = CPHYSADDR(RBTX4938_FPGA_REG_ADDR) + 0xffff;
         rbtx4938_fpga_resource.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-        if (request_resource(&iomem_resource, &rbtx4938_fpga_resource))
+        if (request_resource(&txx9_ce_res[2], &rbtx4938_fpga_resource))
                 printk("request resource for fpga failed\n");
 
         _machine_restart = rbtx4938_machine_restart;
@@ -488,18 +488,6 @@ static int __init rbtx4938_ne_init(void)
         return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
 
-/* GPIO support */
-
-int gpio_to_irq(unsigned gpio)
-{
-        return -EINVAL;
-}
-
-int irq_to_gpio(unsigned irq)
-{
-        return -EINVAL;
-}
-
 static DEFINE_SPINLOCK(rbtx4938_spi_gpio_lock);
 
 static void rbtx4938_spi_gpio_set(struct gpio_chip *chip, unsigned int offset,