WebSVN – freemyipod – Blame – /apps/installer-ipodclassic/bootstub/bootstub.S

Rev	Author	Line No.	Line
366	theseven	1	`@`
		2	`@`
677	theseven	3	`@ emCORE Loader for iPod Classic`
366	theseven	4	`@`
		5	`@ Copyright 2010 TheSeven`
		6	`@`
		7	`@`
677	theseven	8	`@ This file is part of emCORE.`
366	theseven	9	`@`
677	theseven	10	`@ emCORE is free software: you can redistribute it and/or`
366	theseven	11	`@ modify it under the terms of the GNU General Public License as`
		12	`@ published by the Free Software Foundation, either version 2 of the`
		13	`@ License, or (at your option) any later version.`
		14	`@`
677	theseven	15	`@ emCORE is distributed in the hope that it will be useful,`
366	theseven	16	`@ but WITHOUT ANY WARRANTY; without even the implied warranty of`
		17	`@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.`
		18	`@ See the GNU General Public License for more details.`
		19	`@`
		20	`@ You should have received a copy of the GNU General Public License along`
677	theseven	21	`@ with emCORE. If not, see <http://www.gnu.org/licenses/>.`
366	theseven	22	`@`
		23	`@`
		24
		25	`.global _start`
		26	`_start:`
		27
		28	`msr cpsr_c, #0xd3`
		29	`mrc p15, 0, r0,c1,c0`
		30	`bic r0, r0, #1`
		31	`mcr p15, 0, r0,c1,c0`
		32	`mov r0, #0`
		33	`mcr p15, 0, r0,c7,c5`
		34	`mcr p15, 0, r0,c8,c7`
		35	`mcr p15, 0, r0,c13,c0`
797	theseven	36	`adr r5, flushcache`
		37	`mov r2, #0x22000000`
		38	`add r1, r2, #0x50 + flushcache - _start`
		39	`adr r4, _stubend + 4`
		40	`adr lr, copyloop`
366	theseven	41
		42	`flushcache:`
		43	`mrc p15, 0, r15,c7,c14,3`
		44	`bne flushcache`
		45	`mov r0, #0`
		46	`mcr p15, 0, r0,c7,c10,4`
797	theseven	47	`mcr p15, 0, r0,c7,c5`
366	theseven	48	`bx lr`
		49
797	theseven	50	`copyloop:`
		51	`cmp r1, r2`
		52	`ldrhi r3, [r5], #4`
		53	`strhi r3, [r2], #4`
		54	`bhi copyloop`
		55	`add lr, r1, #_start - flushcache - 0x50 + sramstart - flushcache`
		56	`b flushcache`
		57	`sramstart:`
		58	`cmp r4, r5`
		59	`ldrhi r3, [r5], #4`
		60	`strhi r3, [r2], #4`
		61	`bhi sramstart`
		62	`bl flushcache`
		63	`str r4, [r2]`
		64
366	theseven	65	`adr sp, values1`
		66	`ldmia sp!, {r10-r12}`
		67	`mcr p15, 0, r11,c2,c0`
		68	`mov r0, #-1`
		69	`mcr p15, 0, r0,c3,c0`
		70	`mmuloop:`
		71	`str r12, [r11], #4`
		72	`add r12, r12, #0x00100000`
		73	`cmp r12, #0x38000000`
		74	`biccs r12, r12, #0xc`
		75	`tst r12, #0x40000000`
		76	`beq mmuloop`
		77	`mcr p15, 0, r10,c1,c0`
		78	`ldmia sp!, {r0-r12} @ R0 = SYSCONBASE (temporary)`
		79	`str r1, [r0,#0x48]`
		80	`str r2, [r0,#0x4c]`
		81	`mov r2, #0 @ R2 = 0`
		82	`str r2, [r0]`
		83	`str r2, [r0,#0x4]`
		84	`mov r1, #7`
		85	`str r1, [r0,#0x44]`
		86	`mov r1, #0x30`
		87	`str r1, [r0,#0x44]`
		88	`str r2, [r0,#0x60]`
		89	`str r3, [r0,#0x28]`
		90	`str r4, [r0,#0x38]`
		91	`mov r1, #0x34`
		92	`str r1, [r0,#0x44]`
		93	`orr r1, r1, #0x40000`
		94	`str r1, [r0,#0x44]`
		95	`waitpll:`
		96	`ldr r1, [r0,#0x40]`
		97	`tst r1, #4`
		98	`beq waitpll`
		99	`str r5, [r0,#0x04]`
		100	`mov r1, #0x3000`
		101	`str r1, [r0]`
		102	`mov r1, #0x8000`
		103	`orr r3, r1, #0x80000000`
		104	`str r3, [r0,#0x8]`
		105	`str r3, [r0,#0xc]`
		106	`str r1, [r0,#0x10]`
		107	`str r1, [r0,#0x14]`
		108	`mov r3, #3`
		109	`str r3, [r6]`
		110	`orr r1, r0, #0x00200000 @ R1 = TIMERBASE`
		111	`mov r4, #0x440`
		112	`str r4, [r1,#0xa0]`
		113	`mov r4, #0xb`
		114	`str r4, [r1,#0xb0]`
		115	`mvn r4, r2`
		116	`str r4, [r1,#0xa8]`
		117	`str r3, [r1,#0xa4]`
		118	`orr r3, r1, #0x00800000 @ R3 = GPIOBASE (temporary)`
		119	`gpioloop:`
		120	`ldr r4, [sp], #4`
		121	`str r4, [r3], #0xc`
		122	`str r2, [r3], #0x4`
		123	`str r2, [r3], #0x10`
		124	`tst r3, #0x200`
		125	`beq gpioloop`
		126	`str r7, [r3]`
		127	`add r7, r7, #0x100`
		128	`str r7, [r3]`
		129	`ldr r7, [r3,#-0x30]`
		130	`bic r7, r7, #0x40`
		131	`str r7, [r3,#-0x30]`
		132	`ldr r7, [r3,#-0x34]`
		133	`orr r7, r7, #0x40`
		134	`str r7, [r3,#-0x34]`
		135	`add r5, r0, #0x00100000 @ R5 = I2CBASE`
		136	`bl i2cwaitrdy @ R3 = I2C address (temporary)`
		137	`mov r7, #0x40 @ R4 = I2C data (temporary)`
		138	`str r7, [r5,#8] @ R6 = I2C scratch register (temporary)`
		139	`bl i2cwaitrdy @ R7 = I2C return address (temporary)`
		140	`str r2, [r5,#0x14] @ R0 = coldboot flag (temporary)`
		141	`bl i2cwaitrdy`
		142	`str r2, [r5,#0x18]`
		143	`bl i2cwaitrdy`
		144	`mov r6, #0x80`
		145	`str r6, [r5,#0x4]`
		146	`bl i2cwaitrdy`
		147	`str r2, [r5]`
		148	`bl i2cwaitrdy`
		149	`str r2, [r5,#0x4]`
		150	`bl i2cwaitrdy`
		151	`str r7, [r5,#0xc]`
		152	`bl i2cwaitrdy`
		153	`mov r6, #0x184`
		154	`str r6, [r5]`
		155	`bl i2cwaitrdy`
		156	`mov r6, #0x10`
		157	`str r6, [r5,#0x4]`
		158	`bl i2cwaitrdy`
		159	`mov r3, #0x16`
		160	`mvn r4, r2`
		161	`bl pmutransfer`
		162	`and r0, r4, #7`
		163	`mov r3, #0xc`
		164	`mvn r4, r2`
		165	`bl pmutransfer`
		166	`and r4, r4, #8`
		167	`orr r0, r0, r4`
		168	`pmuloop:`
		169	`ldrb r3, [sp], #1`
		170	`ldrb r4, [sp], #1`
		171	`cmp r3, #0xff`
		172	`adrne lr, pmuloop`
		173	`bne pmutransfer`
		174	`mov r3, #0x19`
		175	`mvn r4, r2`
		176	`bl pmutransfer`
		177	`tst r4, #1`
		178	`beq pwrok`
		179	`mov r3, #0x4b`
		180	`mvn r4, r2`
		181	`bl pmutransfer`
		182	`tst r4, #4`
		183	`bne pwrok`
		184	`mov r3, #0x12`
		185	`mvn r4, r2`
		186	`bl pmutransfer`
		187	`tst r4, #4`
		188	`bne pwrok`
		189	`poweroff:`
		190	`mov r3, #0xc`
		191	`mov r4, #1`
		192	`bl pmutransfer`
		193	`b poweroff`
		194
		195	`values1:`
		196	`.word 0x0005107D @ R10 - CP15r1`
		197	`.word 0x2203C000 @ R11 - First level page table`
		198	`.word 0x00000C1E @ R12 - Default segment flags`
		199	`.word 0x3C500000 @ R0 - SYSCON base`
561	theseven	200	`.word 0xFDFFFFE5 @ R1 - PWRCON(0)`
		201	`.word 0xFFFFEFCD @ R2 - PWRCON(1)`
366	theseven	202	`.word 0x01002401 @ R3`
		203	`.word 0x00007E90 @ R4`
		204	`.word 0x00404101 @ R5`
		205	`.word 0x38501000 @ R6`
		206	`.word 0x00060400 @ R7`
		207	`.word 0x0000080D @ R8`
		208	`.word 0x0006105D @ R9`
		209	`.word 0x001FB621 @ R10`
		210	`.word 0x0790682B @ R11`
		211	`.word 0x00008040 @ R12`
		212
		213	`.word 0x5322222F @ PCON0`
		214	`.word 0xEEEEEE00 @ PCON1`
		215	`.word 0x2332EEEE @ PCON2`
		216	`.word 0x3333E222 @ PCON3`
		217	`.word 0x33333333 @ PCON4`
		218	`.word 0x33333333 @ PCON5`
		219	`.word 0x3F000E33 @ PCON6`
		220	`.word 0xEEEEEEEE @ PCON7`
		221	`.word 0xEEEEEEEE @ PCON8`
		222	`.word 0xEEEEEEEE @ PCON9`
		223	`.word 0xE0EEEEEE @ PCONA`
		224	`.word 0xEF00EE0E @ PCONB`
		225	`.word 0xEEEE0EEF @ PCONC`
		226	`.word 0xEEEEEEEE @ PCOND`
		227	`.word 0x202222EE @ PCONE`
		228	`.word 0xEEEE0E22 @ PCONF`
		229
		230	`.byte 0x0c, 0 @ PMU init address-data pairs`
		231	`.byte 0x2d, 0x15`
		232	`.byte 0x2e, 1`
		233	`.byte 0x37, 0x15`
		234	`.byte 0x38, 4`
		235	`.byte 0x2f, 0x15`
		236	`.byte 0x30, 1`
		237	`.byte 0x3b, 0`
		238	`.byte 0x3c, 0x8c`
		239	`.byte 0x13, 3`
		240	`.byte 0x14, 0`
		241	`.byte 0x15, 0`
		242	`.byte 0x22, 0x2f`
		243	`.byte 0x23, 1`
		244	`.byte 0x24, 0`
		245	`.byte 0x25, 0x10`
		246	`.byte 0x26, 9`
		247	`.byte 0x27, 1`
		248	`.byte 0x1a, 0x6f`
		249	`.byte 0x1c, 0`
		250	`.byte 0x1d, 0x59`
		251	`.byte 0x33, 9`
		252	`.byte 0x34, 1`
		253	`.byte 0x39, 0x18`
		254	`.byte 0x3a, 0`
		255	`.byte 0x18, 0xa`
		256	`.byte 0x19, 4`
		257	`.byte 0x58, 0`
		258	`.byte 0x07, 0xb0`
		259	`.byte 0x08, 3`
		260	`.byte 0x09, 0xfe`
		261	`.byte 0x0a, 0xfc`
		262	`.byte 0x0b, 0xff`
		263	`.byte 0x86, 0xfd`
		264	`.byte 0x0d, 0xdf`
		265	`.byte 0x0e, 0xaa`
		266	`.byte 0x0f, 0x4a`
		267	`.byte 0x10, 5`
		268	`.byte 0x11, 0x27`
		269	`.byte 0x17, 1`
		270	`.byte 0x2a, 5`
		271	`.byte 0xff, 0xff @ PMU init terminator`
		272
		273	`lcddata_ref:`
		274	`.hword lcddata_0 - lcddata_ref`
		275	`.hword lcddata_1 - lcddata_ref - 2`
		276	`.hword lcddata_2 - lcddata_ref - 4`
		277	`.hword lcddata_3 - lcddata_ref - 6`
		278	`lcddata_0:`
		279	`.hword 0x4011`
		280	`.hword 0xc78f`
		281	`.hword 0x8135`
		282	`.byte 0x00`
		283	`.hword 0x813a`
		284	`.byte 0x06`
		285	`.hword 0x8136`
		286	`.byte 0x00`
		287	`.hword 0x4013`
		288	`.hword 0x4029`
		289	`.hword 0xc000`
		290	`lcddata_1:`
		291	`.hword 0x95b0`
		292	`.byte 0x3a`
		293	`.byte 0x3a`
		294	`.byte 0x80`
		295	`.byte 0x80`
		296	`.byte 0x0a`
		297	`.byte 0x0a`
		298	`.byte 0x0a`
		299	`.byte 0x0a`
		300	`.byte 0x0a`
		301	`.byte 0x0a`
		302	`.byte 0x0a`
		303	`.byte 0x0a`
		304	`.byte 0x3c`
		305	`.byte 0x30`
		306	`.byte 0x0f`
		307	`.byte 0x00`
		308	`.byte 0x01`
		309	`.byte 0x54`
		310	`.byte 0x06`
		311	`.byte 0x66`
		312	`.byte 0x66`
		313	`.hword 0x81b8`
		314	`.byte 0xd8`
		315	`.hword 0x9eb1`
		316	`.byte 0x14`
		317	`.byte 0x59`
		318	`.byte 0x00`
		319	`.byte 0x15`
		320	`.byte 0x57`
		321	`.byte 0x27`
		322	`.byte 0x04`
		323	`.byte 0x85`
		324	`.byte 0x14`
		325	`.byte 0x59`
		326	`.byte 0x00`
		327	`.byte 0x15`
		328	`.byte 0x57`
		329	`.byte 0x27`
		330	`.byte 0x04`
		331	`.byte 0x85`
		332	`.byte 0x14`
		333	`.byte 0x09`
		334	`.byte 0x15`
		335	`.byte 0x57`
		336	`.byte 0x27`
		337	`.byte 0x04`
		338	`.byte 0x05`
		339	`.byte 0x14`
		340	`.byte 0x09`
		341	`.byte 0x15`
		342	`.byte 0x57`
		343	`.byte 0x27`
		344	`.byte 0x04`
		345	`.byte 0x05`
		346	`.hword 0x40d2`
		347	`.hword 0x0101`
		348	`.hword 0x8de0`
		349	`.byte 0x00`
		350	`.byte 0x00`
		351	`.byte 0x00`
		352	`.byte 0x05`
		353	`.byte 0x0b`
		354	`.byte 0x12`
		355	`.byte 0x16`
		356	`.byte 0x1f`
		357	`.byte 0x25`
		358	`.byte 0x22`
		359	`.byte 0x24`
		360	`.byte 0x29`
		361	`.byte 0x1c`
		362	`.hword 0x8de1`
		363	`.byte 0x08`
		364	`.byte 0x01`
		365	`.byte 0x01`
		366	`.byte 0x06`
		367	`.byte 0x0b`
		368	`.byte 0x11`
		369	`.byte 0x15`
		370	`.byte 0x1f`
		371	`.byte 0x27`
		372	`.byte 0x26`
		373	`.byte 0x29`
		374	`.byte 0x2f`
		375	`.byte 0x1e`
		376	`.hword 0x8de2`
		377	`.byte 0x07`
		378	`.byte 0x01`
		379	`.byte 0x01`
		380	`.byte 0x05`
		381	`.byte 0x09`
		382	`.byte 0x0f`
		383	`.byte 0x13`
		384	`.byte 0x1e`
		385	`.byte 0x26`
		386	`.byte 0x25`
		387	`.byte 0x28`
		388	`.byte 0x2e`
		389	`.byte 0x1e`
		390	`.hword 0x8de3`
		391	`.byte 0x0d`
		392	`.byte 0x00`
		393	`.byte 0x00`
		394	`.byte 0x00`
		395	`.byte 0x05`
		396	`.byte 0x0b`
		397	`.byte 0x12`
		398	`.byte 0x16`
		399	`.byte 0x1f`
		400	`.byte 0x25`
		401	`.byte 0x22`
		402	`.byte 0x24`
		403	`.byte 0x29`
		404	`.byte 0x1c`
		405	`.hword 0x8de4`
		406	`.byte 0x08`
		407	`.byte 0x01`
		408	`.byte 0x01`
		409	`.byte 0x06`
		410	`.byte 0x0b`
		411	`.byte 0x11`
		412	`.byte 0x15`
		413	`.byte 0x1f`
		414	`.byte 0x27`
		415	`.byte 0x26`
		416	`.byte 0x29`
		417	`.byte 0x2f`
		418	`.byte 0x1e`
		419	`.hword 0x8de5`
		420	`.byte 0x07`
		421	`.byte 0x01`
		422	`.byte 0x01`
		423	`.byte 0x05`
		424	`.byte 0x09`
		425	`.byte 0x0f`
		426	`.byte 0x13`
		427	`.byte 0x1e`
		428	`.byte 0x26`
		429	`.byte 0x25`
		430	`.byte 0x28`
		431	`.byte 0x2e`
		432	`.byte 0x1e`
		433	`.hword 0x813a`
		434	`.byte 0x06`
		435	`.hword 0x81c2`
		436	`.byte 0x00`
		437	`.hword 0x8135`
		438	`.byte 0x00`
		439	`.hword 0x4011`
		440	`.hword 0xce88`
		441	`.hword 0x4013`
		442	`.hword 0x4029`
378	theseven	443	`.hword 0xc000`
366	theseven	444	`lcddata_2:`
		445	`lcddata_3:`
419	theseven	446	`.hword 0xc010`
366	theseven	447	`.hword 0x4008`
		448	`.hword 0x0808`
		449	`.hword 0x8110`
		450	`.byte 0x13`
		451	`.hword 0x4011`
		452	`.hword 0x0300`
		453	`.hword 0x4012`
		454	`.hword 0x0101`
		455	`.hword 0x4013`
		456	`.hword 0x0a03`
		457	`.hword 0x4014`
		458	`.hword 0x0a0e`
		459	`.hword 0x4015`
		460	`.hword 0x0a19`
		461	`.hword 0x4016`
		462	`.hword 0x2402`
		463	`.hword 0x8118`
		464	`.byte 0x01`
		465	`.hword 0x8190`
		466	`.byte 0x21`
		467	`.hword 0x4300`
378	theseven	468	`.hword 0x0307`
366	theseven	469	`.hword 0x4301`
378	theseven	470	`.hword 0x0003`
		471	`.hword 0x4302`
366	theseven	472	`.hword 0x0402`
		473	`.hword 0x4303`
		474	`.hword 0x0303`
		475	`.hword 0x4304`
378	theseven	476	`.hword 0x0300`
366	theseven	477	`.hword 0x4305`
378	theseven	478	`.hword 0x0407`
366	theseven	479	`.hword 0x4306`
378	theseven	480	`.hword 0x1c04`
366	theseven	481	`.hword 0x4307`
378	theseven	482	`.hword 0x0307`
366	theseven	483	`.hword 0x4308`
378	theseven	484	`.hword 0x0003`
		485	`.hword 0x4309`
366	theseven	486	`.hword 0x0402`
		487	`.hword 0x430a`
		488	`.hword 0x0303`
		489	`.hword 0x430b`
378	theseven	490	`.hword 0x0300`
366	theseven	491	`.hword 0x430c`
378	theseven	492	`.hword 0x0407`
366	theseven	493	`.hword 0x430d`
378	theseven	494	`.hword 0x1c04`
366	theseven	495	`.hword 0x4310`
378	theseven	496	`.hword 0x0707`
366	theseven	497	`.hword 0x4311`
378	theseven	498	`.hword 0x0407`
366	theseven	499	`.hword 0x4312`
378	theseven	500	`.hword 0x0306`
366	theseven	501	`.hword 0x4313`
		502	`.hword 0x0303`
		503	`.hword 0x4314`
378	theseven	504	`.hword 0x0300`
366	theseven	505	`.hword 0x4315`
378	theseven	506	`.hword 0x0407`
366	theseven	507	`.hword 0x4316`
378	theseven	508	`.hword 0x1c01`
366	theseven	509	`.hword 0x4317`
378	theseven	510	`.hword 0x0707`
366	theseven	511	`.hword 0x4318`
378	theseven	512	`.hword 0x0407`
366	theseven	513	`.hword 0x4319`
378	theseven	514	`.hword 0x0306`
366	theseven	515	`.hword 0x431a`
		516	`.hword 0x0303`
		517	`.hword 0x431b`
378	theseven	518	`.hword 0x0300`
366	theseven	519	`.hword 0x431c`
378	theseven	520	`.hword 0x0407`
366	theseven	521	`.hword 0x431d`
378	theseven	522	`.hword 0x1c01`
366	theseven	523	`.hword 0x4320`
378	theseven	524	`.hword 0x0206`
366	theseven	525	`.hword 0x4321`
378	theseven	526	`.hword 0x0102`
366	theseven	527	`.hword 0x4322`
378	theseven	528	`.hword 0x0404`
366	theseven	529	`.hword 0x4323`
		530	`.hword 0x0303`
		531	`.hword 0x4324`
		532	`.hword 0x0300`
		533	`.hword 0x4325`
378	theseven	534	`.hword 0x0407`
366	theseven	535	`.hword 0x4326`
378	theseven	536	`.hword 0x1c1f`
366	theseven	537	`.hword 0x4327`
378	theseven	538	`.hword 0x0206`
366	theseven	539	`.hword 0x4328`
378	theseven	540	`.hword 0x0102`
366	theseven	541	`.hword 0x4329`
378	theseven	542	`.hword 0x0404`
366	theseven	543	`.hword 0x432a`
		544	`.hword 0x0303`
		545	`.hword 0x432b`
		546	`.hword 0x0300`
		547	`.hword 0x432c`
378	theseven	548	`.hword 0x0407`
366	theseven	549	`.hword 0x432d`
378	theseven	550	`.hword 0x1c1f`
366	theseven	551	`.hword 0x4400`
		552	`.hword 0x001d`
		553	`.hword 0x4401`
		554	`.hword 0x0001`
		555	`.hword 0x4205`
		556	`.hword 0x0060`
		557	`.hword 0x8107`
		558	`.byte 0x01`
		559	`.hword 0x8131`
		560	`.byte 0x71`
		561	`.hword 0x4110`
		562	`.hword 0x0001`
		563	`.hword 0x4100`
		564	`.hword 0x17b0`
		565	`.hword 0x4101`
		566	`.hword 0x0220`
		567	`.hword 0x4102`
378	theseven	568	`.hword 0x00bd`
366	theseven	569	`.hword 0x4103`
378	theseven	570	`.hword 0x1500`
366	theseven	571	`.hword 0x4105`
		572	`.hword 0x0103`
		573	`.hword 0x4106`
		574	`.hword 0x0105`
		575	`.hword 0x8107`
		576	`.byte 0x21`
		577	`.hword 0x4102`
		578	`.hword 0x00bd`
		579	`.hword 0x4001`
		580	`.hword 0x0110`
		581	`.hword 0x4003`
		582	`.hword 0x0230`
		583	`.hword 0x4002`
		584	`.hword 0x0500`
		585	`.hword 0x8107`
		586	`.byte 0x31`
378	theseven	587	`.hword 0x8130`
366	theseven	588	`.byte 0x07`
		589	`.hword 0xc744`
		590	`.hword 0x4030`
		591	`.hword 0x03ff`
		592	`.hword 0xce88`
		593	`.hword 0x8107`
		594	`.byte 0x72`
		595	`.hword 0xe454`
		596	`.hword 0x4007`
		597	`.hword 0x0173`
		598	`.hword 0xc000`
		599
378	theseven	600	`.align 2`
		601
366	theseven	602	`lcdbyteseq:`
		603	`mov r9, r0,lsr#8`
		604	`and r0, r0, #0xff`
		605	`bl sendlcdc`
		606	`lcdbyteseqloop:`
		607	`ldrb r0, [sp], #1`
		608	`bl sendlcdd`
		609	`subs r9, r9, #1`
		610	`bne lcdbyteseqloop`
		611	`b lcdloop`
		612
		613	`sendlcdc:`
		614	`ldr r6, [r4,#0x1c]`
		615	`ands r6, r6, #0x10`
		616	`bne sendlcdc`
		617	`str r0, [r4,#0x04]`
		618	`mov pc, lr`
		619
		620	`sendlcdd:`
		621	`ldr r6, [r4,#0x1c]`
		622	`ands r6, r6, #0x10`
		623	`bne sendlcdd`
		624	`str r0, [r4,#0x40]`
		625	`mov pc, lr`
		626
		627	`i2cwaitrdy:`
		628	`ldr r6, [r5,#0x10]`
		629	`cmp r6, #0`
		630	`bne i2cwaitrdy`
		631	`mov pc, lr`
		632
		633	`i2cwait:`
		634	`ldr r6, [r5]`
		635	`tst r6, #0x10`
		636	`beq i2cwait`
		637	`mov pc, lr`
		638
		639	`pmutransfer:`
		640	`mov r7, lr`
		641	`mov lr, #0xb7`
		642	`str lr, [r5]`
		643	`mov lr, #0xe6`
		644	`str lr, [r5,#0xc]`
		645	`mov lr, #0xf0`
		646	`str lr, [r5,#0x4]`
		647	`bl i2cwait`
		648	`str r3, [r5,#0xc]`
		649	`mov lr, #0xb7`
		650	`str lr, [r5]`
		651	`bl i2cwait`
		652	`cmn r4, #1`
		653	`beq pmuskip`
		654	`str r4, [r5,#0xc]`
		655	`mov lr, #0xb7`
		656	`str lr, [r5]`
		657	`bl i2cwait`
		658	`mov lr, #0xd0`
		659	`b pmudone`
		660	`pmuskip:`
		661	`mov lr, #0xe7`
		662	`str lr, [r5,#0xc]`
		663	`mov lr, #0xb0`
		664	`str lr, [r5,#0x4]`
		665	`mov lr, #0xb7`
		666	`str lr, [r5]`
		667	`bl i2cwait`
		668	`mov lr, #0x37`
		669	`str lr, [r5]`
		670	`bl i2cwait`
		671	`ldr r3, [r5,#0xc]`
		672	`mov lr, #0x90`
		673	`pmudone:`
		674	`str lr, [r5,#0x4]`
		675	`mov lr, #0xb7`
		676	`str lr, [r5]`
		677	`pmuwait:`
		678	`ldr lr, [r5,#0x4]`
		679	`tst lr, #0x20`
		680	`bne pmuwait`
		681	`mov pc, r7`
		682
		683	`udelay:`
		684	`ldr r6, [r1,#0xb4]`
		685	`add r0, r0, r6`
		686	`udelayloop:`
		687	`ldr r6, [r1,#0xb4]`
		688	`cmp r6, r0`
		689	`bmi udelayloop`
		690	`mov pc, lr`
		691
		692
		693	`pwrok:`
		694	`sub r7, r5, #0x04500000 @ R7 = MIUBASE (temporary)`
		695	`cmp r0, #0`
		696	`moveq r6, #0x11`
		697	`streq r6, [r7]`
		698	`str r8, [r7]`
		699	`str r2, [r7,#0xf0]`
		700	`str r9, [r7,#0x8]`
		701	`str r10, [r7,#0x10]`
		702	`mov r8, #0x1800`
		703	`orr r6, r8, #0x45`
		704	`str r6, [r7,#0x200]`
		705	`str r6, [r7,#0x204]`
		706	`str r8, [r7,#0x210]`
		707	`str r8, [r7,#0x214]`
		708	`str r6, [r7,#0x220]`
		709	`str r6, [r7,#0x224]`
		710	`add r6, r6, #0x40`
		711	`str r6, [r7,#0x230]`
		712	`str r6, [r7,#0x234]`
		713	`mov r6, #0x19`
		714	`str r6, [r7,#0x14]`
		715	`str r6, [r7,#0x18]`
		716	`str r11, [r7,#0x1c]`
		717	`ldr r6, [r7,#0x314]`
		718	`bic r6, r6, #0x10`
		719	`str r6, [r7,#0x314]`
		720	`add r8, r7, #0x2c`
		721	`mov r9, #0x24`
		722	`sdramloop:`
		723	`ldr r6, [r8]`
		724	`bic r6, r6, #0x01000000`
		725	`str r6, [r8], #4`
		726	`subs r9, r9, #1`
		727	`bne sdramloop`
		728	`mov r6, #0x540`
		729	`str r6, [r7,#0x1cc]`
		730	`ldr r6, [r7,#0x1d4]`
		731	`orr r6, r6, #0x80`
		732	`str r6, [r7,#0x1d4]`
		733	`mov r6, #0x33`
		734	`str r6, [r7,#0x4]`
		735	`str r6, [r7,#0x4]`
		736	`orr r8, r6, #0x200`
		737	`str r8, [r7,#0x4]`
		738	`str r6, [r7,#0x4]`
		739	`str r6, [r7,#0x4]`
		740	`str r6, [r7,#0x4]`
		741	`orr r8, r8, #0x100`
		742	`str r8, [r7,#0x4]`
		743	`str r6, [r7,#0x4]`
		744	`str r6, [r7,#0x4]`
		745	`str r6, [r7,#0x4]`
		746	`str r8, [r7,#0x4]`
		747	`str r6, [r7,#0x4]`
		748	`str r6, [r7,#0x4]`
		749	`str r6, [r7,#0x4]`
		750	`cmp r0, #0`
		751	`strne r6, [r7,#0xc]`
		752	`bicne r8, r8, #0x200`
		753	`strne r8, [r7,#0x4]`
		754	`strne r6, [r7,#0x4]`
		755	`strne r6, [r7,#0x4]`
		756	`strne r6, [r7,#0x4]`
		757	`strne r12, [r7,#0xc]`
		758	`strne r8, [r7,#0x4]`
		759	`strne r6, [r7,#0x4]`
		760	`strne r6, [r7,#0x4]`
		761	`strne r6, [r7,#0x4]`
		762	`ldr r6, [r7,#0x8]`
		763	`orr r6, r6, #0x61000`
		764	`str r6, [r7,#0x8]`
		765	`orr r3, r1, #0x00800000 @ R3 = GPIOBASE`
		766	`sub r4, r1, #0x04400000 @ R4 = LCDBASE`
		767	`ldr r0, [r3,#0xc4]`
		768	`and r8, r0, #0x30 @ R8 = LCD type GPIO bits << 4`
378	theseven	769	`mov r6, #0x80000000`
366	theseven	770	`add sp, sp, r8,lsr#3`
378	theseven	771	`tst r8, #0x20`
366	theseven	772	`ldrh r0, [sp]`
378	theseven	773	`orrne r6, r6, #0x188`
366	theseven	774	`add sp, sp, r0`
378	theseven	775	`orr r6, r6, #0xc20`
366	theseven	776	`mov r0, #0x33`
378	theseven	777	`str r6, [r4]`
366	theseven	778	`str r0, [r4,#0x20]`
		779	`lcdloop:`
		780	`adr lr, lcdloop`
		781	`ldrb r6, [sp], #1`
		782	`ldrb r7, [sp], #1`
		783	`orr r6, r6, r7,lsl#8`
		784	`mov r7, r6,lsr#14`
		785	`bics r0, r6, #0xc000`
		786	`add pc, pc, r7,lsl#2`
		787	`val_80100db0:`
		788	`.word 0x80100db0`
		789	`b sendlcdd`
		790	`b sendlcdc`
		791	`bne lcdbyteseq`
		792	`movne r0, r0,lsl#4`
		793	`bne udelay`
797	theseven	794	`ldr r1, _stubend + 4`
419	theseven	795	`ldr r6, val_80100db0`
366	theseven	796	`ldr r0, _stubend`
419	theseven	797	`str r6, [r4]`
366	theseven	798	`add r0, r1, r0`
		799	`mov r2, #0x08000000`
		800	`movepayloadloop:`
		801	`cmp r0, r1`
		802	`ldrhi r3, [r1], #4`
		803	`strhi r3, [r2], #4`
		804	`bhi movepayloadloop`
		805	`bl flushcache`
		806	`mov pc, #0x08000000`
		807
		808	`_stubend:`

Subversion Repositories freemyipod

(root)/apps/installer-ipodclassic/bootstub/bootstub.S – Rev 797