arch-v32/kernel/head.S

11  * -traditional must not be used when assembling this file.
70 	;; Note; 3 cycles is needed for a bank-select to take effect. Further;
91 	;; Temporary map of 0x40 -> 0x40 and 0x00 -> 0x00.
98 	;; ARTPEC-3:
103 	;; ETRAX FS:
106 	;; e,f used for memory-mapped NOR flash
213 	; Time to boot-up. Get stack location provided by master CPU.
216 	add.d	8192, $sp
217 	move.d	ebp_start, $r0	; Defined in linker-script.
230 	; Check if starting from DRAM (network->RAM boot or unpacked
233 	and.d	0x7fffffff, $r0 ; Mask off the non-cache bit.
259 #include "../mach-fs/dram_init.S"
261 #include "../mach-a3/dram_init.S"
263 #error Only ETRAXFS and ARTPEC-3 supported!
297 	add.d	0xf0000000, $r4	; Add cached flash start in virtual memory.
353 	add.d	0xf0000000, $r9	; Add cached flash start in virtual memory.
365 	;; after kernel in RAM, as is the case with network->RAM boot.
382 	move.d	[$r0+], $r2	; fetch jffs2 size -> r2
388 	move.d	[$acr], $r2	; fetch cramfs size -> r2
391 	;; Now, move the root fs to after kernel's BSS
393 	move.d	_end, $r1	; start of cramfs -> r1
400 	add.d	$r2, $r0	; copy from end and downwards
401 	add.d	$r2, $r1
453 	move.d	ebp_start, $r0	; Defined in linker-script.
497 ; or RAM when booting directly from a network-downloaded RAM image)
521 #include "../mach-fs/hw_settings.S"
523 #include "../mach-a3/hw_settings.S"
525 #error Only ETRAXFS and ARTPEC-3 supported!