OMAP2+: Kconfig: disallow builds for boards that don't use the currently-selected SoC

Currently, if, for example, CONFIG_ARCH_OMAP2420 is not selected, OMAP2420
board files can still be included in the build.  This results in link errors:

arch/arm/mach-omap2/built-in.o: In function `omap_generic_map_io':
.../arch/arm/mach-omap2/board-generic.c:51: undefined reference to `omap2_set_globals_242x'
arch/arm/mach-omap2/built-in.o: In function `omap_h4_init':
.../arch/arm/mach-omap2/board-h4.c:330: undefined reference to `omap2420_mux_init'
arch/arm/mach-omap2/built-in.o: In function `omap_h4_map_io':
.../arch/arm/mach-omap2/board-h4.c:373: undefined reference to `omap2_set_globals_242x'
arch/arm/mach-omap2/built-in.o: In function `omap_apollon_init':
.../arch/arm/mach-omap2/board-apollon.c:325: undefined reference to `omap2420_mux_init'
arch/arm/mach-omap2/built-in.o: In function `omap_apollon_map_io':
.../arch/arm/mach-omap2/board-apollon.c:353: undefined reference to `omap2_set_globals_242x'
make: *** [.tmp_vmlinux1] Error 1

Fix this by making the boards depend on the Kconfig option for the
specific SoC that they use.

Also, while here, fix the mach-omap2/board-generic.c file to remove the
dependency on OMAP2420.

Charulatha Varadarajan <charu@ti.com> caught a typo - thanks Charu.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Charulatha Varadarajan <charu@ti.com>

2 files changed, 17 insertions, 5 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 2b79b84d0542..ab784bfde908 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -100,20 +100,20 @@ config MACH_OMAP2_TUSB6010
 
 config MACH_OMAP_H4
         bool "OMAP 2420 H4 board"
-        depends on ARCH_OMAP2
+        depends on ARCH_OMAP2420
         default y
         select OMAP_PACKAGE_ZAF
         select OMAP_DEBUG_DEVICES
 
 config MACH_OMAP_APOLLON
         bool "OMAP 2420 Apollon board"
-        depends on ARCH_OMAP2
+        depends on ARCH_OMAP2420
         default y
         select OMAP_PACKAGE_ZAC
 
 config MACH_OMAP_2430SDP
         bool "OMAP 2430 SDP board"
-        depends on ARCH_OMAP2
+        depends on ARCH_OMAP2430
         default y
         select OMAP_PACKAGE_ZAC
 
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 3482b99e8c86..8aee862b625a 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -48,10 +48,22 @@ static void __init omap_generic_init(void)
 
 static void __init omap_generic_map_io(void)
 {
-        omap2_set_globals_242x(); /* should be 242x, 243x, or 343x */
-        omap242x_map_common_io();
+        if (cpu_is_omap242x()) {
+                omap2_set_globals_242x();
+                omap242x_map_common_io();
+        } else if (cpu_is_omap243x()) {
+                omap2_set_globals_243x();
+                omap243x_map_common_io();
+        } else if (cpu_is_omap34xx()) {
+                omap2_set_globals_3xxx();
+                omap34xx_map_common_io();
+        } else if (cpu_is_omap44xx()) {
+                omap2_set_globals_443x();
+                omap44xx_map_common_io();
+        }
 }
 
+/* XXX This machine entry name should be updated */
 MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
         .phys_io        = 0x48000000,