Merge branches 'btc', 'dma', 'entry', 'fixes', 'linker-layout', 'misc', 'mmci', ...

[pandora-kernel.git] / arch / arm / boot / compressed / head.S

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 942fad9..e95a598 100644 (file)
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -353,7 +353,8 @@ not_relocated:      mov     r0, #0
                mov     r0, #0                  @ must be zero
                mov     r1, r7                  @ restore architecture number
                mov     r2, r8                  @ restore atags pointer
-               mov     pc, r4                  @ call kernel
+ ARM(          mov     pc, r4  )               @ call kernel
+ THUMB(                bx      r4      )               @ entry point is always ARM
 
                .align  2
                .type   LC0, #object
@@ -597,6 +598,8 @@ __common_mmu_cache_on:
                sub     pc, lr, r0, lsr #32     @ properly flush pipeline
 #endif
 
+#define PROC_ENTRY_SIZE (4*5)
+
 /*
  * Here follow the relocatable cache support functions for the
  * various processors.  This is a generic hook for locating an
@@ -624,7 +627,7 @@ call_cache_fn:      adr     r12, proc_types
  ARM(          addeq   pc, r12, r3             ) @ call cache function
  THUMB(                addeq   r12, r3                 )
  THUMB(                moveq   pc, r12                 ) @ call cache function
-               add     r12, r12, #4*5
+               add     r12, r12, #PROC_ENTRY_SIZE
                b       1b
 
 /*
@@ -794,6 +797,16 @@ proc_types:
 
                .size   proc_types, . - proc_types
 
+               /*
+                * If you get a "non-constant expression in ".if" statement"
+                * error from the assembler on this line, check that you have
+                * not accidentally written a "b" instruction where you should
+                * have written W(b).
+                */
+               .if (. - proc_types) % PROC_ENTRY_SIZE != 0
+               .error "The size of one or more proc_types entries is wrong."
+               .endif
+
 /*
  * Turn off the Cache and MMU.  ARMv3 does not support
  * reading the control register, but ARMv4 does.