[ARM] avoid mis-detecting some V7 cores in the decompressor

This allows kernel decompress to happen nearly instantly instead
of taking over 20 seconds.

Signed-off-by: Brian Swetland <swetland@google.com>

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 2a998920dfc0aef43956520ff449e6b158badee2..b5d44a0696243de1fe6354beef5775569bd624fd 100644 (file)
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -620,6 +620,8 @@ proc_types:
 @              b       __arm6_mmu_cache_off
 @              b       __armv3_mmu_cache_flush
 
+#if !defined(CONFIG_CPU_V7)
+               /* This collides with some V7 IDs, preventing correct detection */
                .word   0x00000000              @ old ARM ID
                .word   0x0000f000
                mov     pc, lr
@@ -628,6 +630,7 @@ proc_types:
  THUMB(                nop                             )
                mov     pc, lr
  THUMB(                nop                             )
+#endif
 
                .word   0x41007000              @ ARM7/710
                .word   0xfff8fe00