remove dead code from firmware/target/arm/crt0.S, and conditionalise bits of it

make the meizu builds compile with the new crt0.S location


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18776 a1c6a512-1295-4272-9138-f99709370657

firmware/target/arm/crt0.S

@@ -34,24 +34,11 @@ start:
     b       reserved_handler
     b       irq_handler
     b       fiq_handler
+#if CONFIG_CPU==S5L8700
     .word 0x43554644 /* DFUC */
-
+#endif
 newstart:
     msr     cpsr_c, #0xd3 /* enter supervisor mode, disable IRQ/FIQ */
-
-#if 0
-    /* set PWRON to 1 */
-    ldr     r1, =0x3CF00014
-    ldr     r2, [r1]
-    orr     r2, r2, #0x8
-    str     r2, [r1]
-
-    ldr     r1, =0x3CF00010
-    ldr     r2, [r1]
-    bic     r2, r2, #0xf000
-    orr     r2, r2, #0x1000
-    str     r2, [r1]
-#endif
      
     /* Initialise bss section to zero */
     ldr     r2, =_edata
@@ -127,5 +114,3 @@ irq_stack:
 fiq_stack:
 
 end:
-    /*.word 0xA5A5A5A5
-    .word 0x5A5A5A5A*/

firmware/target/arm/s5l8700/boot.lds

@@ -3,7 +3,7 @@
 ENTRY(start)
 OUTPUT_FORMAT(elf32-bigarm)
 OUTPUT_ARCH(arm)
-STARTUP(target/arm/s5l8700/crt0.o)
+STARTUP(target/arm/crt0.o)
 
 /* DRAMORIG is in fact 0x8000000 but remapped to 0x0 */
 #define DRAMORIG 0x0