WebSVN – freemyipod – Blame – /apps/installer-ipodnano2g/bootstub/bootstub.S

Rev	Author	Line No.	Line
163	theseven	1	`@`
		2	`@`
		3	`@ emBIOS Loader for iPod Nano 2G`
		4	`@`
		5	`@ Copyright 2010 TheSeven`
		6	`@`
		7	`@`
		8	`@ This file is part of emBIOS.`
		9	`@`
		10	`@ emBIOS is free software: you can redistribute it and/or`
		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	`@`
		15	`@ emBIOS is distributed in the hope that it will be useful,`
		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`
		21	`@ with emBIOS. If not, see <http://www.gnu.org/licenses/>.`
		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	`adr lr, cacheflush_done`
		35
		36	`flushcache:`
		37	`mov r0, #0`
		38	`flushcache_loop:`
		39	`mcr p15, 0, r0,c7,c14,2`
		40	`add r10, r0, #0x10`
		41	`mcr p15, 0, r10,c7,c14,2`
		42	`add r10, r10, #0x10`
		43	`mcr p15, 0, r10,c7,c14,2`
		44	`add r10, r10, #0x10`
		45	`mcr p15, 0, r10,c7,c14,2`
		46	`adds r0, r0, #0x04000000`
		47	`bne flushcache_loop`
		48	`mcr p15, 0, r0,c7,c10,4`
		49	`mov pc, lr`
		50
		51	`cacheflush_done:`
		52	`adr r0, _start`
		53	`adr r1, _stubend + 4`
		54	`mov r2, #0x22000000`
		55	`copyloop:`
		56	`cmp r1, r0`
		57	`ldrhi r3, [r0], #4`
		58	`strhi r3, [r2], #4`
		59	`bhi copyloop`
		60	`str r1, [r2]`
		61	`mov r0, #0x22000000`
		62	`add pc, r0, #sramstart - _start`
		63	`sramstart:`
		64
		65	`adr lr, values1`
		66	`ldmia lr!, {r0-r13}`
		67	`str r1, [r0,#0x88]`
		68	`str r2, [r0,#0xf0]`
		69	`str r4, [r3,#0x38]`
		70	`mov r1, #0`
		71	`str r7, [r0]`
		72	`str r1, [r0,#0x04]`
		73	`str r8, [r0,#0x10]`
		74	`str r1, [r0,#0x14]`
		75	`str r9, [r0,#0x20]`
		76	`str r1, [r0,#0x24]`
		77	`str r10, [r0,#0x30]`
		78	`str r1, [r0,#0x34]`
		79	`str r9, [r0,#0x40]`
		80	`str r1, [r0,#0x44]`
		81	`str r11, [r0,#0x50]`
		82	`str r1, [r0,#0x54]`
		83	`str r12, [r0,#0x60]`
		84	`str r1, [r0,#0x64]`
		85	`str r13, [r0,#0xa0]`
		86	`str r1, [r0,#0xa4]`
		87	`str r5, [r0,#0xb0]`
		88	`mov r3, #1`
		89	`str r3, [r0,#0xb4]`
		90	`str r6, [r0,#0xc0]`
		91	`ldmia lr, {r4-r14}`
		92	`str r1, [r0,#0xc4]`
		93	`str r6, [r0,#0xd0]`
		94	`str r1, [r0,#0xd4]`
		95	`str r6, [r0,#0xe0]`
		96	`str r1, [r0,#0xe4]`
		97	`str r7, [r0,#0xf0]`
		98	`str r1, [r0,#0xf4]`
		99	`ldr r3, [r8,#0x24]`
		100	`orr r3, r3, #3`
		101	`str r3, [r8,#0x24]`
		102	`ldr r3, [r8,#0x28]`
		103	`bic r3, r3, #0x4000`
		104	`str r3, [r8,#0x28]`
		105	`mov r3, #0x3C400000`
		106	`str r1, [r3]`
		107	`str r12, [r8,#0x0c]`
		108	`ldr r3, [r8,#0x24]`
		109	`orr r3, r3, #0x54`
		110	`str r3, [r8,#0x24]`
		111	`mov r3, #0x2000`
		112	`waitpll1:`
		113	`subs r3, r3, #1`
		114	`bne waitpll1`
		115	`ldr r3, [r8]`
		116	`bic r3, r3, r5`
		117	`orr r3, r3, r4`
		118	`str r3, [r8]`
		119	`ldr r3, [r8,#0x24]`
		120	`bic r3, r3, #1`
		121	`str r3, [r8,#0x24]`
		122	`mov r3, #0x84`
		123	`str r3, [r0,#0x68]`
		124	`str r13, [r8,#0x04]`
		125	`mov r3, #0xa000`
		126	`waitpll2:`
		127	`subs r3, r3, #1`
		128	`bne waitpll2`
		129	`ldr r3, [r8,#0x24]`
		130	`orr r3, r3, #1`
		131	`str r3, [r8,#0x24]`
		132	`mov r3, #0x6000`
		133	`waitpll3:`
		134	`subs r3, r3, #1`
		135	`bne waitpll3`
		136	`ldr r3, [r8]`
		137	`bic r3, r3, r9`
		138	`orr r3, r3, r10`
		139	`str r3, [r8]`
		140	`ldr r3, [r8,#0x3c]`
		141	`bic r3, r3, #0x400`
		142	`orr r3, r3, #0x280`
		143	`str r3, [r8,#0x3c]`
		144	`ldr r3, [r8,#0x10]`
		145	`bic r3, r3, #0x1f8`
		146	`orr r3, r3, #0x37`
		147	`str r3, [r8,#0x10]`
		148	`mrc p15, 0, r3,c1,c0`
		149	`orr r3, r3, #0xc0000000`
		150	`mcr p15, 0, r3,c1,c0`
		151	`str r11, [r8,#0x28]`
		152	`str r14, [r8,#0x40]`
		153	`sub r6, r0, #0x00800000`
		154	`mov r5, #0xf700`
		155	`str r5, [r6,#0x88]`
		156	`mov r5, #0x1100`
		157	`orr r5, r5, #0x11`
		158	`str r5, [r0,#0x88]`
		159	`add r4, r6, #0x00200000`
		160	`str r1, [r4,#0x08]`
		161	`mov r5, #0xb7`
		162	`str r5, [r4]`
		163	`mov r5, #0x10`
		164	`str r5, [r4,#0x04]`
		165	`b setuppmu`
		166
		167	`pmuinitdata:`
		168	`.byte 3, 0x39, 0x18, 0, 0x8c`
		169	`.byte 3, 0x13, 3, 0, 0`
		170	`.byte 6, 0x16, 7, 0, 5, 2, 0x6b, 0`
		171	`.byte 4, 0x1e, 0x12, 1, 0, 0x10`
		172	`.byte 6, 0x22, 0x2f, 1, 0, 0x10, 9, 1`
		173	`.byte 6, 0x31, 0x15, 1, 0x0f, 3, 0x15, 0`
		174	`.byte 1, 0x43, 0`
		175	`.byte 1, 0x4e, 0`
		176	`.byte 1, 0x58, 0`
		177	`.byte 5, 0x07, 0xb0, 0x0f, 0xfe, 0xfc, 0xff`
		178	`.byte 5, 0x0d, 0xdf, 0xaa, 0x4a, 5, 0x27`
		179	`.byte 0`
		180	`.align 2`
		181
		182	`val_006a49a5:`
		183	`.word 0x006a49a5`
		184
		185	`values1:`
		186	`.word 0x3CF00000 @ R0`
		187	`.word 0x00001111 @ R1`
		188	`.word 0x00000221 @ R2`
		189	`.word 0x38200000 @ R3`
		190	`val_00990999:`
		191	`.word 0x00990999 @ R4`
		192	`.word 0x41001111 @ R5`
		193	`.word 0x11114444 @ R6`
		194	`.word 0x11221111 @ R7`
		195	`.word 0x11001744 @ R8`
		196	`.word 0x33333333 @ R9`
		197	`.word 0x11113333 @ R10`
		198	`.word 0x77721151 @ R11`
		199	`.word 0x12111111 @ R12`
		200	`.word 0x11111000 @ R13`
		201	`.word 0x60007000 @ R4`
		202	`.word 0x7F007F00 @ R5`
		203	`.word 0x44444444 @ R6`
		204	`.word 0x22222221 @ R7`
		205	`.word 0x3C500000 @ R8`
		206	`.word 0xFF00FF00 @ R9`
		207	`.word 0x20803180 @ R10`
		208	`.word 0xFFDFF7CF @ R11`
		209	`.word 0x00061800 @ R12`
		210	`.word 0x00021200 @ R13`
		211	`.word 0xFFFFEF7E @ R14`
		212
		213	`setuppmu:`
		214	`mov sp, pc`
		215	`bl getpowerok`
		216	`beq poweroff`
		217	`adr r2, pmuinitdata`
		218	`pmuinitloop:`
		219	`ldrb r3, [r2], #1`
		220	`movs r3, r3`
		221	`beq pmuinitdone`
		222	`ldrb r1, [r2], #1`
		223	`mov r0, #0xe6`
		224	`bl i2csend`
		225	`b pmuinitloop`
		226	`pmuinitdone:`
		227	`orr r12, r12, #0x00600000`
		228	`mov r1, #1`
		229	`ldr r0, [r12,#0x100]`
		230	`bic r0, r0, #0x0f`
		231	`orr r0, r0, #1`
		232	`str r0, [r12,#0x100]`
		233	`str r1, [r12,#0x10c]`
		234	`sub r11, r12, #0x04d00000`
		235	`ldr r0, [r11,#0x80]`
		236	`bic r0, r0, #0x20000`
		237	`str r0, [r11,#0x80]`
		238	`ldr r0, [r11]`
		239	`bic r0, r0, #0xc00`
		240	`orr r0, r0, #0x500`
		241	`str r0, [r11]`
		242	`mov r0, #3`
		243	`str r0, [r11,#0x04]`
		244	`mov r0, #1`
		245	`bl sleepms`
		246	`mov r0, #0x200`
		247	`orr r0, r0, #0xed`
		248	`str r0, [r11,#0x08]`
		249	`ldr r0, val_006a49a5`
		250	`str r0, [r11,#0x10]`
		251	`mov r0, #0x37`
		252	`str r0, [r11,#0x0c]`
		253	`ldr r1, [r11,#0x04]`
		254	`bic r1, r1, #0x700`
		255	`orr r0, r1, #0x200`
		256	`str r0, [r11,#0x04]`
		257	`orr r0, r1, #0x300`
		258	`str r0, [r11,#0x04]`
		259	`str r0, [r11,#0x04]`
		260	`orr r0, r1, #0x100`
		261	`str r0, [r11,#0x04]`
		262	`orr r0, r1, #0x500`
		263	`str r0, [r11,#0x04]`
		264	`ldr r0, [r11,#0x08]`
		265	`orr r0, r0, #0x1000`
		266	`str r0, [r11,#0x08]`
		267	`ldr r0, val_00990999`
		268	`str r0, [r11,#0x38]`
		269	`ldr r0, [r12,#0xf0]`
		270	`bic r0, r0, #0xff000000`
		271	`bic r0, r0, #0x00ff0000`
		272	`orr r0, r0, #0x22000000`
		273	`orr r0, r0, #0x00220000`
		274	`str r0, [r12,#0xf0]`
		275	`mov r0, #0xf0`
		276	`str r0, [r12,#0xfc]`
		277	`sub r10, r12, #0x00d00000`
		278	`ldr r0, [r10]`
		279	`mov r0, r0,lsr#20`
		280	`mov r0, r0,lsl#20`
		281	`str r0, [r10]`
		282	`mov r1, #0x3a000`
		283	`orr r1, r1, #0x980`
		284	`str r1, [r10,#0x08]`
		285	`orr r0, r0, #0x300000`
		286	`str r0, [r10]`
		287	`bl initlcd`
		288	`mov r0, #0x3f`
		289	`mcr p15, 0, r0,c6,c0,1 @ CS0: 4GB at offset 0 - everything`
		290	`mcr p15, 0, r0,c6,c0,0 @ DS0: 4GB at offset 0 - everything`
		291	`mov r0, #0x31`
		292	`mcr p15, 0, r0,c6,c1,1 @ CS1: SRAM/SDRAM mirror`
		293	`mcr p15, 0, r0,c6,c1,0 @ DS1: SRAM/SDRAM mirror`
		294	`add r0, r0, #0x08000000`
		295	`mcr p15, 0, r0,c6,c2,1 @ CS2: SDRAM`
		296	`mcr p15, 0, r0,c6,c2,0 @ DS2: SDRAM`
		297	`mov r0, #0x23`
		298	`add r0, r0, #0x22000000`
		299	`mcr p15, 0, r0,c6,c3,1 @ CS3: SRAM`
		300	`mcr p15, 0, r0,c6,c3,0 @ DS3: SRAM`
		301	`mov r0, #0x27`
		302	`add r0, r0, #0x24000000`
		303	`mcr p15, 0, r0,c6,c4,1 @ CS4: NOR flash`
		304	`mcr p15, 0, r0,c6,c4,0 @ DS4: NOR flash`
		305	`mcr p15, 0, r1,c6,c5,1 @ CS5: unused`
		306	`mcr p15, 0, r1,c6,c5,0 @ DS5: unused`
		307	`mcr p15, 0, r1,c6,c6,1 @ CS6: unused`
		308	`mcr p15, 0, r1,c6,c6,0 @ DS6: unused`
		309	`mcr p15, 0, r1,c6,c7,1 @ CS7: unused`
		310	`mcr p15, 0, r1,c6,c7,0 @ DS7: unused`
		311	`mov r0, #0x1e`
		312	`mcr p15, 0, r0,c2,c0, 1 @ CS1-4: cacheable`
		313	`mcr p15, 0, r0,c2,c0, 0 @ DS1-4: cacheable`
		314	`mcr p15, 0, r0,c3,c0, 0 @ DS1-4: write cacheable`
		315	`mov r0, #0x300`
		316	`add r0, r0, #0xff`
		317	`mcr p15, 0, r0,c5,c0, 1 @ CS0-4: full access`
		318	`mcr p15, 0, r0,c5,c0, 0 @ DS0-4: full access`
		319	`mrc p15, 0, r0,c1,c0`
		320	`orr r0, r0, #5`
		321	`orr r0, r0, #0x1000`
		322	`mcr p15, 0, r0,c1,c0 @ Re-enable the Protection Unit and caches`
165	theseven	323	`ldr r1, _stubend + 4`
163	theseven	324	`ldr r0, _stubend`
165	theseven	325	`add r0, r1, r0`
163	theseven	326	`mov r2, #0x08000000`
		327	`movepayloadloop:`
165	theseven	328	`cmp r0, r1`
		329	`ldrhi r3, [r1], #4`
163	theseven	330	`strhi r3, [r2], #4`
		331	`bhi movepayloadloop`
165	theseven	332	`bl flushcache`
		333	`mcr p15, 0, r0,c7,c5`
163	theseven	334	`mov pc, #0x08000000`
		335
		336
		337	`lcd_inittab_type2:`
		338	`.byte 5, 10`
		339	`.byte 3, 0xa4`
		340	`.byte 4, 0x01`
		341	`.byte 5, 150`
		342	`.byte 3, 0x01`
		343	`.byte 2, 0x01`
		344	`.byte 2, 0x00`
		345	`.byte 3, 0x02`
		346	`.byte 2, 0x03`
		347	`.byte 2, 0x00`
		348	`.byte 3, 0x03`
		349	`.byte 2, 0x12`
		350	`.byte 2, 0x30`
		351	`.byte 3, 0x08`
		352	`.byte 2, 0x04`
		353	`.byte 2, 0x04`
		354	`.byte 3, 0x0e`
		355	`.byte 4, 0x10`
		356	`.byte 3, 0x70`
		357	`.byte 2, 0x10`
		358	`.byte 2, 0x00`
		359	`.byte 3, 0x71`
		360	`.byte 4, 0x01`
		361	`.byte 3, 0x30`
		362	`.byte 4, 0x02`
		363	`.byte 3, 0x31`
		364	`.byte 2, 0x04`
		365	`.byte 2, 0x00`
		366	`.byte 3, 0x32`
		367	`.byte 4, 0x07`
		368	`.byte 3, 0x33`
		369	`.byte 2, 0x05`
		370	`.byte 2, 0x00`
		371	`.byte 3, 0x34`
		372	`.byte 4, 0x07`
		373	`.byte 3, 0x35`
		374	`.byte 2, 0x07`
		375	`.byte 2, 0x03`
		376	`.byte 3, 0x36`
		377	`.byte 2, 0x05`
		378	`.byte 2, 0x07`
		379	`.byte 3, 0x37`
		380	`.byte 4, 0x05`
		381	`.byte 3, 0x38`
		382	`.byte 2, 0x14`
		383	`.byte 2, 0x04`
		384	`.byte 3, 0x39`
		385	`.byte 4, 0x0e`
		386	`.byte 3, 0x40`
		387	`.byte 2, 0x02`
		388	`.byte 2, 0x02`
		389	`.byte 3, 0x41`
		390	`.byte 4, 0x03`
		391	`.byte 3, 0x42`
		392	`.byte 4, 0x00`
		393	`.byte 3, 0x43`
		394	`.byte 2, 0x02`
		395	`.byte 2, 0x00`
		396	`.byte 3, 0x44`
		397	`.byte 2, 0x07`
		398	`.byte 2, 0x07`
		399	`.byte 3, 0x45`
		400	`.byte 2, 0x04`
		401	`.byte 2, 0x07`
		402	`.byte 3, 0x46`
		403	`.byte 2, 0x05`
		404	`.byte 2, 0x05`
		405	`.byte 3, 0x47`
		406	`.byte 4, 0x02`
		407	`.byte 3, 0x48`
		408	`.byte 4, 0x04`
		409	`.byte 3, 0x49`
		410	`.byte 4, 0x04`
		411	`.byte 3, 0x60`
		412	`.byte 2, 0x02`
		413	`.byte 2, 0x02`
		414	`.byte 3, 0x61`
		415	`.byte 4, 0x03`
		416	`.byte 3, 0x62`
		417	`.byte 4, 0x00`
		418	`.byte 3, 0x63`
		419	`.byte 2, 0x02`
		420	`.byte 2, 0x00`
		421	`.byte 3, 0x64`
		422	`.byte 2, 0x07`
		423	`.byte 2, 0x07`
		424	`.byte 3, 0x65`
		425	`.byte 2, 0x04`
		426	`.byte 2, 0x07`
		427	`.byte 3, 0x66`
		428	`.byte 2, 0x05`
		429	`.byte 2, 0x05`
		430	`.byte 3, 0x68`
		431	`.byte 4, 0x04`
		432	`.byte 3, 0x69`
		433	`.byte 4, 0x04`
		434	`.byte 3, 0x07`
		435	`.byte 4, 0x01`
		436	`.byte 3, 0x18`
		437	`.byte 4, 0x01`
		438	`.byte 3, 0x10`
		439	`.byte 2, 0x16`
		440	`.byte 2, 0x90`
		441	`.byte 3, 0x11`
		442	`.byte 2, 0x01`
		443	`.byte 2, 0x00`
		444	`.byte 3, 0x12`
		445	`.byte 2, 0x01`
		446	`.byte 2, 0x17`
		447	`.byte 3, 0x13`
		448	`.byte 2, 0x0f`
		449	`.byte 2, 0x80`
		450	`.byte 3, 0x12`
		451	`.byte 2, 0x01`
		452	`.byte 2, 0x37`
		453	`.byte 3, 0x20`
		454	`.byte 4, 0x00`
		455	`.byte 3, 0x21`
		456	`.byte 4, 0x00`
		457	`.byte 3, 0x50`
		458	`.byte 4, 0x00`
		459	`.byte 3, 0x51`
		460	`.byte 4, 0xaf`
		461	`.byte 3, 0x52`
		462	`.byte 4, 0x00`
		463	`.byte 3, 0x53`
		464	`.byte 4, 0x83`
		465	`.byte 3, 0x90`
		466	`.byte 4, 0x03`
		467	`.byte 3, 0x91`
		468	`.byte 4, 0x00`
		469	`.byte 3, 0x92`
		470	`.byte 2, 0x01`
		471	`.byte 2, 0x01`
		472	`.byte 3, 0x98`
		473	`.byte 2, 0x04`
		474	`.byte 2, 0x00`
		475	`.byte 3, 0x99`
		476	`.byte 2, 0x13`
		477	`.byte 2, 0x02`
		478	`.byte 3, 0x9a`
		479	`.byte 2, 0x02`
		480	`.byte 2, 0x02`
		481	`.byte 3, 0x9b`
		482	`.byte 2, 0x02`
		483	`.byte 2, 0x00`
		484	`.byte 5, 100`
		485	`.byte 3, 0x07`
		486	`.byte 4, 0x21`
		487	`.byte 3, 0x12`
		488	`.byte 2, 0x01`
		489	`.byte 2, 0x37`
		490	`.byte 5, 1`
		491	`.byte 3, 0x07`
		492	`.byte 4, 0x21`
		493	`.byte 3, 0x12`
		494	`.byte 2, 0x11`
		495	`.byte 2, 0x37`
		496	`.byte 5, 100`
		497	`.byte 3, 0x07`
		498	`.byte 2, 0x02`
		499	`.byte 2, 0x33`
		500	`.byte 0`
		501
		502	`lcd_inittab_type3:`
		503	`.byte 1, 0x01`
		504	`.byte 5, 5`
		505	`.byte 1, 0x11`
		506	`.byte 5, 120`
		507	`.byte 1, 0x3a`
		508	`.byte 2, 0x65`
		509	`.byte 1, 0xab`
		510	`.byte 1, 0x35`
		511	`.byte 2, 0x00`
		512	`.byte 1, 0xf2`
		513	`.byte 2, 0x01`
		514	`.byte 1, 0xe0`
		515	`.byte 2, 0x71`
		516	`.byte 2, 0x76`
		517	`.byte 2, 0x25`
		518	`.byte 2, 0x01`
		519	`.byte 2, 0xa5`
		520	`.byte 2, 0x09`
		521	`.byte 2, 0x15`
		522	`.byte 2, 0x11`
		523	`.byte 1, 0xe1`
		524	`.byte 2, 0x40`
		525	`.byte 2, 0x21`
		526	`.byte 2, 0x64`
		527	`.byte 2, 0x13`
		528	`.byte 2, 0xf3`
		529	`.byte 2, 0x0b`
		530	`.byte 2, 0x00`
		531	`.byte 2, 0x00`
		532	`.byte 1, 0xe2`
		533	`.byte 2, 0x71`
		534	`.byte 2, 0x65`
		535	`.byte 2, 0x24`
		536	`.byte 2, 0x08`
		537	`.byte 2, 0x97`
		538	`.byte 2, 0x01`
		539	`.byte 2, 0x15`
		540	`.byte 2, 0x11`
		541	`.byte 1, 0xe3`
		542	`.byte 2, 0x51`
		543	`.byte 2, 0x01`
		544	`.byte 2, 0x62`
		545	`.byte 2, 0x13`
		546	`.byte 2, 0xf3`
		547	`.byte 2, 0x0b`
		548	`.byte 2, 0x00`
		549	`.byte 2, 0x00`
		550	`.byte 1, 0xe4`
		551	`.byte 2, 0x71`
		552	`.byte 2, 0x57`
		553	`.byte 2, 0x31`
		554	`.byte 2, 0x01`
		555	`.byte 2, 0x82`
		556	`.byte 2, 0x04`
		557	`.byte 2, 0x1f`
		558	`.byte 2, 0x11`
		559	`.byte 1, 0xe5`
		560	`.byte 2, 0x64`
		561	`.byte 2, 0x41`
		562	`.byte 2, 0x64`
		563	`.byte 2, 0x19`
		564	`.byte 2, 0xb3`
		565	`.byte 2, 0x09`
		566	`.byte 2, 0x00`
		567	`.byte 2, 0x00`
		568	`.byte 1, 0x29`
		569	`.byte 0`
		570
		571	`lcd_inittab_type7:`
		572	`.byte 1, 0x01`
		573	`.byte 5, 10`
		574	`.byte 1, 0xb4`
		575	`.byte 2, 0x00`
		576	`.byte 1, 0xb6`
		577	`.byte 2, 0x01`
		578	`.byte 1, 0xb7`
		579	`.byte 2, 0x00`
		580	`.byte 2, 0x00`
		581	`.byte 2, 0x02`
		582	`.byte 2, 0x00`
		583	`.byte 2, 0x06`
		584	`.byte 2, 0x26`
		585	`.byte 2, 0x2d`
		586	`.byte 2, 0x27`
		587	`.byte 2, 0x55`
		588	`.byte 2, 0x27`
		589	`.byte 1, 0xb8`
		590	`.byte 2, 0x10`
		591	`.byte 1, 0xb9`
		592	`.byte 2, 0x52`
		593	`.byte 2, 0x12`
		594	`.byte 2, 0x03`
		595	`.byte 1, 0xc0`
		596	`.byte 2, 0x0a`
		597	`.byte 2, 0x10`
		598	`.byte 2, 0x10`
		599	`.byte 1, 0xc2`
		600	`.byte 2, 0x14`
		601	`.byte 2, 0x23`
		602	`.byte 1, 0xc3`
		603	`.byte 2, 0x12`
		604	`.byte 2, 0x23`
		605	`.byte 1, 0xc6`
		606	`.byte 2, 0x48`
		607	`.byte 1, 0xe0`
		608	`.byte 2, 0x20`
		609	`.byte 2, 0x71`
		610	`.byte 2, 0x17`
		611	`.byte 2, 0x09`
		612	`.byte 2, 0x70`
		613	`.byte 2, 0x0c`
		614	`.byte 2, 0x13`
		615	`.byte 2, 0x25`
		616	`.byte 1, 0xe1`
		617	`.byte 2, 0x37`
		618	`.byte 2, 0x00`
		619	`.byte 2, 0x63`
		620	`.byte 2, 0x11`
		621	`.byte 2, 0xd9`
		622	`.byte 2, 0x00`
		623	`.byte 2, 0x12`
		624	`.byte 2, 0x01`
		625	`.byte 1, 0xe2`
		626	`.byte 2, 0x42`
		627	`.byte 2, 0x42`
		628	`.byte 2, 0x60`
		629	`.byte 2, 0x08`
		630	`.byte 2, 0xb4`
		631	`.byte 2, 0x07`
		632	`.byte 2, 0x0e`
		633	`.byte 2, 0x90`
		634	`.byte 1, 0xe3`
		635	`.byte 2, 0x47`
		636	`.byte 2, 0x60`
		637	`.byte 2, 0x66`
		638	`.byte 2, 0x09`
		639	`.byte 2, 0x6a`
		640	`.byte 2, 0x02`
		641	`.byte 2, 0x0e`
		642	`.byte 2, 0x09`
		643	`.byte 1, 0xe4`
		644	`.byte 2, 0x11`
		645	`.byte 2, 0x40`
		646	`.byte 2, 0x03`
		647	`.byte 2, 0x0a`
		648	`.byte 2, 0xc1`
		649	`.byte 2, 0x0d`
		650	`.byte 2, 0x17`
		651	`.byte 2, 0x30`
		652	`.byte 1, 0xe5`
		653	`.byte 2, 0x00`
		654	`.byte 2, 0x30`
		655	`.byte 2, 0x77`
		656	`.byte 2, 0x1c`
		657	`.byte 2, 0xfb`
		658	`.byte 2, 0x00`
		659	`.byte 2, 0x13`
		660	`.byte 2, 0x07`
		661	`.byte 1, 0xe6`
		662	`.byte 2, 0x01`
		663	`.byte 1, 0x35`
		664	`.byte 2, 0x00`
		665	`.byte 1, 0x36`
		666	`.byte 2, 0x00`
		667	`.byte 1, 0xf2`
		668	`.byte 2, 0x40`
		669	`.byte 1, 0xf3`
		670	`.byte 2, 0x50`
		671	`.byte 1, 0xfb`
		672	`.byte 2, 0x01`
		673	`.byte 1, 0x11`
		674	`.byte 5, 200`
		675	`.byte 1, 0xb1`
		676	`.byte 2, 0x16`
		677	`.byte 2, 0x03`
		678	`.byte 1, 0xb2`
		679	`.byte 2, 0x17`
		680	`.byte 2, 0x03`
		681	`.byte 1, 0x3a`
		682	`.byte 2, 0x65`
		683	`.byte 1, 0x29`
		684	`.byte 0`
		685
		686	`.align 2`
		687
		688	`lcd_initmapping:`
		689	`.word lcd_inittab_type3 - lcd_initmapping_ref`
		690	`.word lcd_inittab_type7 - lcd_initmapping_ref`
		691	`.word lcd_inittab_type2 - lcd_initmapping_ref`
		692	`.word lcd_inittab_type3 - lcd_initmapping_ref`
		693
		694	`initlcd:`
		695	`stmfd sp!, {r4,r5,lr}`
		696	`bl detectlcd`
		697	`sub r12, r12, #0x04900000`
		698	`adr r5, lcd_initmapping`
		699	`add r5, r5, r0,lsl#2`
		700	`ldr r5, [r5]`
		701	`add r5, r5, pc`
		702	`mov r0, #0xc00`
		703	`lcd_initmapping_ref:`
		704	`orr r0, r0, #1`
		705	`str r0, [r12]`
		706	`mov r0, #0x7f00`
		707	`orr r0, r0, #0xff`
		708	`str r0, [r12,#0x24]`
		709	`mov r0, #0`
		710	`str r0, [r12,#0x28]`
		711	`mov r0, #1`
		712	`bl sleepms`
		713	`mov r0, #1`
		714	`str r0, [r12,#0x28]`
		715	`mov r0, #5`
		716	`bl sleepms`
		717	`initlcd_loop:`
		718	`adr lr, initlcd_loop`
		719	`ldrb r1, [r5], #1`
		720	`ldrb r0, [r5], #1`
		721	`add pc, pc, r1,lsl#2`
		722	`nop`
		723	`ldmfd sp!, {r4,r5,pc}`
		724	`b sendlcdc`
		725	`b sendlcdd`
		726	`b sendlcd2c`
		727	`b sendlcd2d`
		728	`b sleepms`
		729
		730	`sendlcd2c:`
		731	`ldr r4, [r12,#0x1c]`
		732	`ands r4, r4, #0x10`
		733	`bne sendlcd2c`
		734	`mov r4, r0,lsr#8`
		735	`str r4, [r12,#0x04]`
		736	`and r0, r0, #0xff`
		737	`sendlcdc:`
		738	`ldr r4, [r12,#0x1c]`
		739	`ands r4, r4, #0x10`
		740	`bne sendlcdc`
		741	`str r0, [r12,#0x04]`
		742	`mov pc, lr`
		743	`sendlcd2d:`
		744	`ldr r4, [r12,#0x1c]`
		745	`ands r4, r4, #0x10`
		746	`bne sendlcd2d`
		747	`mov r4, r0,lsr#8`
		748	`str r4, [r12,#0x40]`
		749	`and r0, r0, #0xff`
		750	`sendlcdd:`
		751	`ldr r4, [r12,#0x1c]`
		752	`ands r4, r4, #0x10`
		753	`bne sendlcdd`
		754	`str r0, [r12,#0x40]`
		755	`mov pc, lr`
		756
		757	`detectlcd:`
		758	`mov r12, #0x3c000000`
		759	`orr r12, r12, #0xf00000`
		760	`ldr r0, [r12,#0xd0]`
		761	`bic r0, r0, #0x0f`
		762	`str r0, [r12,#0xd0]`
		763	`ldr r0, [r12,#0xe0]`
		764	`bic r0, r0, #0xf0`
		765	`str r0, [r12,#0xe0]`
		766	`ldr r0, [r12,#0xd4]`
		767	`and r0, r0, #1`
		768	`ldr r1, [r12,#0xe4]`
		769	`and r1, r1, #2`
		770	`orr r0, r0, r1`
		771	`mov pc, lr`
		772
		773	`getpowerok:`
		774	`stmfd sp!, {lr}`
		775	`mov r0, #0xe6`
		776	`mov r1, #0x19`
		777	`bl i2crecvbyte`
		778	`eor r0, r0, #1`
		779	`ands r0, r0, #1`
		780	`ldmnefd sp!, {pc}`
		781	`mov r0, #0xe6`
		782	`mov r1, #0x4b`
		783	`bl i2crecvbyte`
		784	`ands r0, r0, #4`
		785	`movne r0, #1`
		786	`ldmnefd sp!, {pc}`
		787	`mov r0, #0xe6`
		788	`mov r1, #0x12`
		789	`bl i2crecvbyte`
		790	`ands r0, r0, #4`
		791	`movne r0, #1`
		792	`ldmfd sp!, {pc}`
		793
		794	`poweroff:`
		795	`mov r0, #0xe6`
		796	`mov r1, #0x0c`
		797	`mov r2, #0x01`
		798	`bl i2csendbyte`
		799	`b poweroff`
		800
		801	`i2csendbyte:`
		802	`mov r3, #0`
		803	`@fallthrough`
		804
		805	`i2csend:`
		806	`stmfd sp!, {r4,lr}`
		807	`mov r12, #0x3C000000`
		808	`add r12, r12, #0x00900000`
		809	`mov r4, #0`
		810	`str r4, [r12,#0x08]`
		811	`str r0, [r12,#0x0c]`
		812	`mov r4, #0xf0`
		813	`str r4, [r12,#0x04]`
		814	`mov r4, #0xf3`
		815	`str r4, [r12]`
		816	`bl i2cwait`
		817	`str r1, [r12,#0x0c]`
		818	`str r4, [r12]`
		819	`bl i2cwait`
		820	`movs r3, r3`
		821	`moveq r0, r2`
		822	`i2csend_write:`
		823	`ldrne r0, [r2], #1`
		824	`str r0, [r12,#0x0c]`
		825	`str r4, [r12]`
		826	`bl i2cwait`
		827	`subs r3, r3, #1`
		828	`bhi i2csend_write`
		829	`mov r0, #0xd0`
		830	`str r0, [r12,#0x04]`
		831	`str r4, [r12]`
		832	`i2csend_wait:`
		833	`ldr r0, [r12,#0x04]`
		834	`tst r0, #0x20`
		835	`bne i2csend_wait`
		836	`ldmfd sp!, {r4,pc}`
		837
		838	`i2crecvbyte:`
		839	`mov r2, #0`
		840	`mov r3, #1`
		841	`@fallthrough`
		842
		843	`i2crecv:`
		844	`stmfd sp!, {r0,r4,lr}`
		845	`mov r12, #0x3C000000`
		846	`add r12, r12, #0x00900000`
		847	`mov r4, #0`
		848	`str r4, [r12,#0x08]`
		849	`str r0, [r12,#0x0c]`
		850	`mov r4, #0xf0`
		851	`str r4, [r12,#0x04]`
		852	`mov r4, #0xf3`
		853	`str r4, [r12]`
		854	`bl i2cwait`
		855	`str r1, [r12,#0x0c]`
		856	`str r4, [r12]`
		857	`bl i2cwait`
		858	`ldr r0, [sp]`
		859	`orr r0, r0, #1`
		860	`str r1, [r12,#0x0c]`
		861	`mov r0, #0xb0`
		862	`str r0, [r12,#0x04]`
		863	`str r4, [r12]`
		864	`bl i2cwait`
		865	`i2crecv_read:`
		866	`subs r3, r3, #1`
		867	`moveq r4, #0x73`
		868	`str r4, [r12]`
		869	`bl i2cwait`
		870	`ldr r0, [r12,#0x0c]`
		871	`movs r2, r2`
		872	`strne r0, [r2], #1`
		873	`movs r3, r3`
		874	`bne i2crecv_read`
		875	`mov r1, #0x90`
		876	`str r1, [r12,#0x04]`
		877	`mov r1, #0xf3`
		878	`str r1, [r12]`
		879	`i2crecv_wait:`
		880	`ldr r1, [r12,#0x04]`
		881	`tst r1, #0x20`
		882	`bne i2crecv_wait`
		883	`ldmfd sp!, {r0,r4,pc}`
		884
		885	`i2cwait:`
		886	`ldr r0, [r12]`
		887	`tst r0, #0x10`
		888	`beq i2cwait`
		889	`mov pc, lr`
		890
		891
		892	`sleep10ms:`
		893	`mov r0, #10`
		894	`@ fallthrough`
		895
		896	`sleepms:`
		897	`mov r2, #0xc8`
		898	`mul r1, r0, r2`
		899	`mov r2, #0x3c000000`
		900	`orr r2, r2, #0x700000`
		901	`ldr r0, [r2,#0x80]`
		902	`ldr r0, [r2,#0x84]`
		903	`add r1, r1, r0`
		904	`sleepmsloop:`
		905	`ldr r0, [r2,#0x80]`
		906	`ldr r0, [r2,#0x84]`
		907	`cmp r0, r1`
		908	`bmi sleepmsloop`
		909	`mov pc, lr`
		910
		911	`_stubend:`

Subversion Repositories freemyipod

(root)/apps/installer-ipodnano2g/bootstub/bootstub.S – Rev 165