aboutsummaryrefslogtreecommitdiffstats
path: root/arch/blackfin/mach-bf548
diff options
context:
space:
mode:
authorMike Frysinger <vapier.adi@gmail.com>2008-08-06 05:15:27 -0400
committerBryan Wu <cooloney@kernel.org>2008-08-06 05:15:27 -0400
commit09e1f70e31ed6ca23dd42feb10aa104fc1b04c40 (patch)
treebe3b8fb1813414395fa4c11ad51698414191e043 /arch/blackfin/mach-bf548
parent778307d372555f979cf6cef112a6d7fbff056cd9 (diff)
Blackfin arch: unify the duplicated _real_start functions
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/mach-bf548')
-rw-r--r--arch/blackfin/mach-bf548/head.S73
1 files changed, 0 insertions, 73 deletions
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 06b9178cfcfe..96fbdb790a98 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -212,79 +212,6 @@ ENTRY(__start)
212 jump .LWAIT_HERE; 212 jump .LWAIT_HERE;
213ENDPROC(__start) 213ENDPROC(__start)
214 214
215ENTRY(_real_start)
216 [ -- sp ] = reti;
217 p0.l = lo(WDOG_CTL);
218 p0.h = hi(WDOG_CTL);
219 r0 = 0xAD6(z);
220 w[p0] = r0; /* watchdog off for now */
221 ssync;
222
223 /* Code update for BSS size == 0
224 * Zero out the bss region.
225 */
226
227 p1.l = ___bss_start;
228 p1.h = ___bss_start;
229 p2.l = ___bss_stop;
230 p2.h = ___bss_stop;
231 r0 = 0;
232 p2 -= p1;
233 lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2;
234.L_clear_bss:
235 B[p1++] = r0;
236
237 /* In case there is a NULL pointer reference
238 * Zero out region before stext
239 */
240
241 p1.l = 0x0;
242 p1.h = 0x0;
243 r0.l = __stext;
244 r0.h = __stext;
245 r0 = r0 >> 1;
246 p2 = r0;
247 r0 = 0;
248 lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2;
249.L_clear_zero:
250 W[p1++] = r0;
251
252 /* pass the uboot arguments to the global value command line */
253 R0 = R7;
254 call _cmdline_init;
255
256 p1.l = __rambase;
257 p1.h = __rambase;
258 r0.l = __sdata;
259 r0.h = __sdata;
260 [p1] = r0;
261
262 p1.l = __ramstart;
263 p1.h = __ramstart;
264 p3.l = ___bss_stop;
265 p3.h = ___bss_stop;
266
267 r1 = p3;
268 [p1] = r1;
269
270
271 /*
272 * load the current thread pointer and stack
273 */
274 r1.l = _init_thread_union;
275 r1.h = _init_thread_union;
276
277 r2.l = 0x2000;
278 r2.h = 0x0000;
279 r1 = r1 + r2;
280 sp = r1;
281 usp = sp;
282 fp = sp;
283 call _start_kernel;
284.L_exit:
285 jump.s .L_exit;
286ENDPROC(_real_start)
287
288__FINIT 215__FINIT
289 216
290.section .l1.text 217.section .l1.text