--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gtm900-fw-disasm	Fri May 31 01:42:34 2019 +0000
@@ -0,0 +1,633 @@
+; This disassembly is a quick look at the firmware that has been read out
+; of a Huawei GTM900-B modem module.  Unlike most other phone and modem
+; vendors' firmwares, this fw exhibits very few changes relative to TI's
+; reference version.  Here I have only dug far enough to get to the
+; init module with the Init_Target() function and the ARMIO module with
+; the GPIO setup.
+
+; Flash boot mode 1 reset entry
+       0:	ea0004b3	b	0x12d4
+       4:	ea00083d	b	0x2100
+       8:	ea00083d	b	0x2104
+       c:	ea00083d	b	0x2108
+      10:	ea00083d	b	0x210c
+      14:	ea00083d	b	0x2110
+      18:	ea00083d	b	0x2114
+      1c:	ea00083d	b	0x2118
+
+_INT_Bootloader_Start:
+    12d4:	e51f101c	ldr	r1, =0xffff9800	; via 0x12c0
+    12d8:	e15f21b2	ldrh	r2, =0x2006	; via 0x12ce
+    12dc:	e1c120b0	strh	r2, [r1]
+    12e0:	e5912000	ldr	r2, [r1]
+    12e4:	e2022001	and	r2, r2, #1
+    12e8:	e3520001	cmp	r2, #1
+    12ec:	0afffffb	beq	0x12e0
+    12f0:	e51f103c	ldr	r1, =0xfffffd00	; via 0x12bc
+    12f4:	e15f23b0	ldrh	r2, =0x1081	; via 0x12cc
+    12f8:	e1c120b0	strh	r2, [r1]
+    12fc:	e51f1040	ldr	r1, =0xfffffb10	; via 0x12c4
+    1300:	e15f23b8	ldrh	r2, =0x800	; via 0x12d0
+    1304:	e1d100b0	ldrh	r0, [r1]
+    1308:	e1800002	orr	r0, r0, r2
+    130c:	e1c100b0	strh	r0, [r1]
+    1310:	e51f1050	ldr	r1, =0xffffff08	; via 0x12c8
+    1314:	e15f24ba	ldrh	r2, =0x0	; via 0x12d2
+    1318:	e1c120b0	strh	r2, [r1]
+; MEMIF setup, nCS0 and nCS1 WS increased from TI's 0x2A1
+    131c:	e51f107c	ldr	r1, =0xfffffb00	; via 0x12a8
+    1320:	e15f27bc	ldrh	r2, =0x2a3	; via 0x12ac
+    1324:	e1c120b0	strh	r2, [r1]
+    1328:	e15f28b2	ldrh	r2, =0x2a4	; via 0x12ae
+    132c:	e1c120b2	strh	r2, [r1, #2]
+    1330:	e15f28b8	ldrh	r2, =0x2a1	; via 0x12b0
+    1334:	e1c120b4	strh	r2, [r1, #4]
+    1338:	e15f28be	ldrh	r2, =0x283	; via 0x12b2
+    133c:	e1c120b6	strh	r2, [r1, #6]
+    1340:	e15f29b4	ldrh	r2, =0x281	; via 0x12b4
+    1344:	e1c120ba	strh	r2, [r1, #10]	; 0xa
+    1348:	e15f29ba	ldrh	r2, =0xc0	; via 0x12b6
+    134c:	e1c120bc	strh	r2, [r1, #12]	; 0xc
+    1350:	e15f2ab0	ldrh	r2, =0x40	; via 0x12b8
+    1354:	e1c120b8	strh	r2, [r1, #8]
+    1358:	e15f2ab6	ldrh	r2, =0x2a	; via 0x12ba
+    135c:	e1c120be	strh	r2, [r1, #14]	; 0xe
+    1360:	e59f0020	ldr	r0, =0x10ab4cc	; via 0x1388
+    1364:	e3a01b01	mov	r1, #1024	; 0x400
+    1368:	e2411004	sub	r1, r1, #4
+    136c:	e0802001	add	r2, r0, r1
+    1370:	e3c22003	bic	r2, r2, #3
+    1374:	e1a0d002	mov	sp, r2
+    1378:	e92d100f	stmdb	sp!, {r0, r1, r2, r3, r12}
+    137c:	eb000043	bl	0x1490	; _sta_select_application
+    1380:	e8bd100f	ldmia	sp!, {r0, r1, r2, r3, r12}
+    1384:	ea000373	b	0x2158	; _INT_Initialize
+
+    2000:	00000001
+
+; .inttext exception vectors
+    2100:	ea0000cb	b	0x2434
+    2104:	ea0000cd	b	0x2440
+    2108:	ea0000cf	b	0x244c
+    210c:	ea0000d1	b	0x2458
+    2110:	ea0000d3	b	0x2464
+    2114:	ea0000b7	b	0x23f8
+    2118:	ea0000c0	b	0x2420
+
+    211c:	02a102a1
+    2120:	028302a1
+    2124:	02c00e85
+    2128:	002a0040
+    212c:	fffffb00
+    2130:	fffef006
+    2134:	00000008
+    2138:	fffffd00
+    213c:	ffff9800
+    2140:	fffffb10
+    2144:	ffffff08
+    2148:	20021081
+    214c:	f7ff0800
+    2150:	00000000
+    2154:	002041a0
+
+_INT_Initialize:
+    2158:	e51f1024	ldr	r1, =0xffff9800	; via 0x213c
+    215c:	e15f21ba	ldrh	r2, =0x2002	; via 0x214a
+    2160:	e1c120b0	strh	r2, [r1]
+    2164:	e5912000	ldr	r2, [r1]
+    2168:	e2022001	and	r2, r2, #1
+    216c:	e3520001	cmp	r2, #1
+    2170:	0afffffb	beq	0x2164
+    2174:	e51f1044	ldr	r1, =0xfffffd00	; via 0x2138
+    2178:	e15f23b8	ldrh	r2, =0x1081	; via 0x2148
+    217c:	e1c120b0	strh	r2, [r1]
+    2180:	e51f1048	ldr	r1, =0xfffffb10	; via 0x2140
+    2184:	e15f23be	ldrh	r2, =0xf7ff	; via 0x214e
+    2188:	e1d100b0	ldrh	r0, [r1]
+    218c:	e0000002	and	r0, r0, r2
+    2190:	e1c100b0	strh	r0, [r1]
+    2194:	e51f1058	ldr	r1, =0xffffff08	; via 0x2144
+    2198:	e15f25b0	ldrh	r2, =0x0	; via 0x2150
+    219c:	e1c120b0	strh	r2, [r1]
+; MEMIF setup same as TI's original, no increased WS
+    21a0:	e51f107c	ldr	r1, =0xfffffb00	; via 0x212c
+    21a4:	e15f29b0	ldrh	r2, =0x2a1	; via 0x211c
+    21a8:	e1c120b0	strh	r2, [r1]
+    21ac:	e15f29b6	ldrh	r2, =0x2a1	; via 0x211e
+    21b0:	e1c120b2	strh	r2, [r1, #2]
+    21b4:	e15f29bc	ldrh	r2, =0x2a1	; via 0x2120
+    21b8:	e1c120b4	strh	r2, [r1, #4]
+    21bc:	e15f2ab2	ldrh	r2, =0x283	; via 0x2122
+    21c0:	e1c120b6	strh	r2, [r1, #6]
+    21c4:	e15f2ab8	ldrh	r2, =0xe85	; via 0x2124
+    21c8:	e1c120ba	strh	r2, [r1, #10]	; 0xa
+    21cc:	e15f2abe	ldrh	r2, =0x2c0	; via 0x2126
+    21d0:	e1c120bc	strh	r2, [r1, #12]	; 0xc
+    21d4:	e15f2bb4	ldrh	r2, =0x40	; via 0x2128
+    21d8:	e1c120b8	strh	r2, [r1, #8]
+    21dc:	e15f2bba	ldrh	r2, =0x2a	; via 0x212a
+    21e0:	e1c120be	strh	r2, [r1, #14]	; 0xe
+    21e4:	e51f10bc	ldr	r1, =0xfffef006	; via 0x2130
+    21e8:	e1d120b0	ldrh	r2, [r1]
+    21ec:	e51f00c0	ldr	r0, =0x8	; via 0x2134
+    21f0:	e1800002	orr	r0, r0, r2
+    21f4:	e1c100b0	strh	r0, [r1]
+    21f8:	e10f0000	mrs	r0, CPSR
+    21fc:	e3c0001f	bic	r0, r0, #31	; 0x1f
+    2200:	e3800013	orr	r0, r0, #19	; 0x13
+    2204:	e38000c0	orr	r0, r0, #192	; 0xc0
+    2208:	e129f000	msr	CPSR_fc, r0
+; inline bss clearing, not like in our TCS211 reference
+    220c:	e59f031c	ldr	r0, =0x1000cf8	; via 0x2530
+    2210:	e3a02000	mov	r2, #0
+    2214:	e59f1318	ldr	r1, =0x10ab4cc	; via 0x2534
+    2218:	e4802004	str	r2, [r0], #4
+    221c:	e1500001	cmp	r0, r1
+    2220:	1afffffc	bne	0x2218
+    2224:	e59f030c	ldr	r0, =0x800000	; via 0x2538
+    2228:	e3a02000	mov	r2, #0
+    222c:	e59f1308	ldr	r1, =0x82027c	; via 0x253c
+    2230:	e4802004	str	r2, [r0], #4
+    2234:	e1500001	cmp	r0, r1
+    2238:	1afffffc	bne	0x2230
+; INT_Loaded_Flag setting, familiar code continues
+    223c:	e3a00001	mov	r0, #1
+    2240:	e59f12fc	ldr	r1, =0x10ab3e4	; via 0x2544
+    2244:	e5810000	str	r0, [r1]
+    2248:	e59f02f0	ldr	r0, =0x10ab5b8	; via 0x2540
+    224c:	e3a01b01	mov	r1, #1024	; 0x400
+    2250:	e2411004	sub	r1, r1, #4
+    2254:	e0802001	add	r2, r0, r1
+    2258:	e1a0a000	mov	r10, r0
+    225c:	e59f32e4	ldr	r3, =0x804950	; via 0x2548
+    2260:	e583a000	str	r10, [r3]
+    2264:	e1a0d002	mov	sp, r2
+    2268:	e59f32dc	ldr	r3, =0x804a74	; via 0x254c
+    226c:	e583d000	str	sp, [r3]
+    2270:	e3a01080	mov	r1, #128	; 0x80
+    2274:	e0822001	add	r2, r2, r1
+    2278:	e10f0000	mrs	r0, CPSR
+    227c:	e3c0001f	bic	r0, r0, #31	; 0x1f
+    2280:	e3800012	orr	r0, r0, #18	; 0x12
+    2284:	e129f000	msr	CPSR_fc, r0
+    2288:	e1a0d002	mov	sp, r2
+    228c:	e3a01c02	mov	r1, #512	; 0x200
+    2290:	e0822001	add	r2, r2, r1
+    2294:	e10f0000	mrs	r0, CPSR
+    2298:	e3c0001f	bic	r0, r0, #31	; 0x1f
+    229c:	e3800011	orr	r0, r0, #17	; 0x11
+    22a0:	e129f000	msr	CPSR_fc, r0
+    22a4:	e1a0d002	mov	sp, r2
+    22a8:	e10f0000	mrs	r0, CPSR
+    22ac:	e3c0001f	bic	r0, r0, #31	; 0x1f
+    22b0:	e3800017	orr	r0, r0, #23	; 0x17
+    22b4:	e129f000	msr	CPSR_fc, r0
+    22b8:	e59fd29c	ldr	sp, =0x10ab520	; via 0x255c
+    22bc:	e10f0000	mrs	r0, CPSR
+    22c0:	e3c0001f	bic	r0, r0, #31	; 0x1f
+    22c4:	e380001b	orr	r0, r0, #27	; 0x1b
+    22c8:	e129f000	msr	CPSR_fc, r0
+    22cc:	e59fd288	ldr	sp, =0x10ab520	; via 0x255c
+    22d0:	e10f0000	mrs	r0, CPSR
+    22d4:	e3c0001f	bic	r0, r0, #31	; 0x1f
+    22d8:	e3800013	orr	r0, r0, #19	; 0x13
+    22dc:	e129f000	msr	CPSR_fc, r0
+    22e0:	e59f3268	ldr	r3, =0x8048b8	; via 0x2550
+    22e4:	e2822004	add	r2, r2, #4
+    22e8:	e5832000	str	r2, [r3]
+    22ec:	e3a01b01	mov	r1, #1024	; 0x400
+    22f0:	e3c11003	bic	r1, r1, #3
+    22f4:	e0822001	add	r2, r2, r1
+    22f8:	e59f3254	ldr	r3, =0x80493c	; via 0x2554
+    22fc:	e5831000	str	r1, [r3]
+    2300:	e3a01002	mov	r1, #2
+    2304:	e59f324c	ldr	r3, =0x80494c	; via 0x2558
+    2308:	e5831000	str	r1, [r3]
+    230c:	e1a04002	mov	r4, r2
+    2310:	eb080707	bl	0x203f34	; _f_load_int_mem
+    2314:	e1a02004	mov	r2, r4
+    2318:	e59f1228	ldr	r1, =0x804950	; via 0x2548
+    231c:	e5910000	ldr	r0, [r1]
+    2320:	e3a030fe	mov	r3, #254	; 0xfe
+    2324:	e5c03000	strb	r3, [r0]
+    2328:	e5c03001	strb	r3, [r0, #1]
+    232c:	e5c03002	strb	r3, [r0, #2]
+    2330:	e5c03003	strb	r3, [r0, #3]
+    2334:	e4903004	ldr	r3, [r0], #4
+    2338:	e4803004	str	r3, [r0], #4
+    233c:	e1500002	cmp	r0, r2
+    2340:	bafffffc	blt	0x2338
+    2344:	e51f01f8	ldr	r0, =0x2041a0	; via 0x2154
+    2348:	e3700001	cmn	r0, #1
+    234c:	1b000084	blne	0x2564
+    2350:	e1a00002	mov	r0, r2
+    2354:	ea0806ea	b	0x203f04	; _INC_Initialize
+
+$Init_Target:
+  1f30a4:	b570		push	{r4, r5, r6, lr}
+  1f30a6:	b081		sub	sp, #4
+  1f30a8:	4d62		ldr	r5, =0xfffef008	; via 0x1f3234
+  1f30aa:	2003		mov	r0, #3
+  1f30ac:	0340		lsl	r0, r0, #13
+  1f30ae:	8028		strh	r0, [r5, #0]
+  1f30b0:	f008 fc40	bl	0x1fb934	; $TM_DisableWatchdog
+  1f30b4:	4860		ldr	r0, =0xfffffd02	; via 0x1f3238
+  1f30b6:	2105		mov	r1, #5
+  1f30b8:	8802		ldrh	r2, [r0, #0]
+  1f30ba:	4311		orr	r1, r2
+  1f30bc:	8001		strh	r1, [r0, #0]
+  1f30be:	495f		ldr	r1, =0xff3f	; via 0x1f323c
+  1f30c0:	8802		ldrh	r2, [r0, #0]
+  1f30c2:	4011		and	r1, r2
+  1f30c4:	8001		strh	r1, [r0, #0]
+  1f30c6:	2180		mov	r1, #128	; 0x80
+  1f30c8:	8802		ldrh	r2, [r0, #0]
+  1f30ca:	4311		orr	r1, r2
+  1f30cc:	8001		strh	r1, [r0, #0]
+  1f30ce:	495c		ldr	r1, =0xffdf	; via 0x1f3240
+  1f30d0:	8802		ldrh	r2, [r0, #0]
+  1f30d2:	4011		and	r1, r2
+  1f30d4:	8001		strh	r1, [r0, #0]
+  1f30d6:	4e5b		ldr	r6, =0xfffff900	; via 0x1f3244
+  1f30d8:	20ff		mov	r0, #255	; 0xff
+  1f30da:	0200		lsl	r0, r0, #8
+  1f30dc:	8030		strh	r0, [r6, #0]
+  1f30de:	4c5a		ldr	r4, =0xffff9800	; via 0x1f3248
+  1f30e0:	485a		ldr	r0, =0xfff3	; via 0x1f324c
+  1f30e2:	8821		ldrh	r1, [r4, #0]
+  1f30e4:	4008		and	r0, r1
+  1f30e6:	8020		strh	r0, [r4, #0]
+  1f30e8:	8820		ldrh	r0, [r4, #0]
+  1f30ea:	8020		strh	r0, [r4, #0]
+  1f30ec:	4858		ldr	r0, =0xf01f	; via 0x1f3250
+  1f30ee:	8821		ldrh	r1, [r4, #0]
+  1f30f0:	4008		and	r0, r1
+  1f30f2:	8020		strh	r0, [r4, #0]
+  1f30f4:	2001		mov	r0, #1
+  1f30f6:	0280		lsl	r0, r0, #10
+  1f30f8:	8821		ldrh	r1, [r4, #0]
+  1f30fa:	4308		orr	r0, r1
+  1f30fc:	8020		strh	r0, [r4, #0]
+  1f30fe:	2000		mov	r0, #0
+  1f3100:	2102		mov	r1, #2
+  1f3102:	2200		mov	r2, #0
+  1f3104:	f009 f84e	bl	0x1fc1a4	; $CLKM_InitARMClock
+; MEMIF setup, diff from reference version is nCS1 setting with WS=4
+  1f3108:	4952		ldr	r1, =0xfffffb00	; via 0x1f3254
+  1f310a:	20a3		mov	r0, #163	; 0xa3
+  1f310c:	8008		strh	r0, [r1, #0]
+  1f310e:	22a4		mov	r2, #164	; 0xa4
+  1f3110:	804a		strh	r2, [r1, #2]
+  1f3112:	22a5		mov	r2, #165	; 0xa5
+  1f3114:	808a		strh	r2, [r1, #4]
+  1f3116:	80c8		strh	r0, [r1, #6]
+  1f3118:	2080		mov	r0, #128	; 0x80
+  1f311a:	8148		strh	r0, [r1, #10]	; 0xa
+  1f311c:	20c0		mov	r0, #192	; 0xc0
+  1f311e:	8188		strh	r0, [r1, #12]	; 0xc
+  1f3120:	2040		mov	r0, #64	; 0x40
+  1f3122:	8108		strh	r0, [r1, #8]
+  1f3124:	2020		mov	r0, #32	; 0x20
+  1f3126:	8070		strh	r0, [r6, #2]
+  1f3128:	2000		mov	r0, #0
+  1f312a:	80b0		strh	r0, [r6, #4]
+  1f312c:	2010		mov	r0, #16	; 0x10
+  1f312e:	8821		ldrh	r1, [r4, #0]
+  1f3130:	4308		orr	r0, r1
+  1f3132:	8020		strh	r0, [r4, #0]
+  1f3134:	4848		ldr	r0, =0xfffffa08	; via 0x1f3258
+  1f3136:	4949		ldr	r1, =0xffff	; via 0x1f325c
+  1f3138:	8001		strh	r1, [r0, #0]
+  1f313a:	8041		strh	r1, [r0, #2]
+  1f313c:	2103		mov	r1, #3
+  1f313e:	8181		strh	r1, [r0, #12]	; 0xc
+  1f3140:	f007 f980	bl	0x1fa444	; $IQ_SetupInterrupts
+  1f3144:	4846		ldr	r0, =0xfffffc00	; via 0x1f3260
+  1f3146:	2124		mov	r1, #36	; 0x24
+  1f3148:	8001		strh	r1, [r0, #0]
+  1f314a:	210d		mov	r1, #13	; 0xd
+  1f314c:	8041		strh	r1, [r0, #2]
+  1f314e:	2400		mov	r4, #0
+  1f3150:	4844		ldr	r0, =0xfffe2016	; via 0x1f3264
+  1f3152:	8004		strh	r4, [r0, #0]
+  1f3154:	4944		ldr	r1, =0xfffe2014	; via 0x1f3268
+  1f3156:	2002		mov	r0, #2
+  1f3158:	8008		strh	r0, [r1, #0]
+  1f315a:	4944		ldr	r1, =0xfffe2002	; via 0x1f326c
+  1f315c:	2084		mov	r0, #132	; 0x84
+  1f315e:	8008		strh	r0, [r1, #0]
+  1f3160:	4843		ldr	r0, =0xfffe2000	; via 0x1f3270
+  1f3162:	4944		ldr	r1, =0x3de0	; via 0x1f3274
+  1f3164:	8001		strh	r1, [r0, #0]
+  1f3166:	4a44		ldr	r2, =0xfffe2022	; via 0x1f3278
+  1f3168:	210c		mov	r1, #12	; 0xc
+  1f316a:	8011		strh	r1, [r2, #0]
+  1f316c:	4a43		ldr	r2, =0xfffe2020	; via 0x1f327c
+  1f316e:	4944		ldr	r1, =0x45a	; via 0x1f3280
+  1f3170:	8011		strh	r1, [r2, #0]
+  1f3172:	4a44		ldr	r2, =0xfffe201e	; via 0x1f3284
+  1f3174:	21a5		mov	r1, #165	; 0xa5
+  1f3176:	0089		lsl	r1, r1, #2
+  1f3178:	8011		strh	r1, [r2, #0]
+  1f317a:	4a43		ldr	r2, =0xfffe201c	; via 0x1f3288
+  1f317c:	211f		mov	r1, #31	; 0x1f
+  1f317e:	8011		strh	r1, [r2, #0]
+  1f3180:	4942		ldr	r1, =0xfffe2024	; via 0x1f328c
+  1f3182:	800c		strh	r4, [r1, #0]
+  1f3184:	4b42		ldr	r3, =0xfffe2010	; via 0x1f3290
+  1f3186:	2202		mov	r2, #2
+  1f3188:	8819		ldrh	r1, [r3, #0]
+  1f318a:	430a		orr	r2, r1
+  1f318c:	801a		strh	r2, [r3, #0]
+  1f318e:	4a40		ldr	r2, =0xfffe2010	; via 0x1f3290
+  1f3190:	2104		mov	r1, #4
+  1f3192:	8813		ldrh	r3, [r2, #0]
+  1f3194:	4319		orr	r1, r3
+  1f3196:	8011		strh	r1, [r2, #0]
+  1f3198:	2127		mov	r1, #39	; 0x27
+  1f319a:	80a9		strh	r1, [r5, #4]
+  1f319c:	8a01		ldrh	r1, [r0, #16]	; 0x10
+  1f319e:	0849		lsr	r1, r1, #1
+  1f31a0:	d30f		bcc	0x1f31c2
+  1f31a2:	8a01		ldrh	r1, [r0, #16]	; 0x10
+  1f31a4:	0409		lsl	r1, r1, #16
+  1f31a6:	0c49		lsr	r1, r1, #17
+  1f31a8:	0049		lsl	r1, r1, #1
+  1f31aa:	8201		strh	r1, [r0, #16]	; 0x10
+  1f31ac:	2101		mov	r1, #1
+  1f31ae:	e001		b	0x1f31b4
+  1f31b0:	9900		ldr	r1, [sp, #0]
+  1f31b2:	3101		add	r1, #1
+  1f31b4:	9100		str	r1, [sp, #0]
+  1f31b6:	9900		ldr	r1, [sp, #0]
+  1f31b8:	2932		cmp	r1, #50	; 0x32
+  1f31ba:	d3f9		bcc	0x1f31b0
+  1f31bc:	8a41		ldrh	r1, [r0, #18]	; 0x12
+  1f31be:	2900		cmp	r1, #0
+  1f31c0:	d0fc		beq	0x1f31bc
+  1f31c2:	f009 f8d4	bl	0x1fc36e	; $AI_ClockEnable
+  1f31c6:	f009 f8d8	bl	0x1fc37a	; $AI_InitIOConfig
+; Huawei's added LPG setup function
+  1f31ca:	f009 fa5e	bl	0x1fc68a
+  1f31ce:	2027		mov	r0, #39	; 0x27
+  1f31d0:	0500		lsl	r0, r0, #20
+  1f31d2:	8004		strh	r4, [r0, #0]
+  1f31d4:	2001		mov	r0, #1
+  1f31d6:	f008 fbbb	bl	0x1fb950	; $TM_EnableTimer
+  1f31da:	2002		mov	r0, #2
+  1f31dc:	f008 fbb8	bl	0x1fb950	; $TM_EnableTimer
+  1f31e0:	b001		add	sp, #4
+  1f31e2:	bd70		pop	{r4, r5, r6, pc}
+
+$Init_Drivers:
+  1f31e4:	b500		push	{lr}
+  1f31e6:	f7b4 f9a5	bl	0x1a7534
+  1f31ea:	f7c9 fe00	bl	0x1bcdee
+  1f31ee:	f74e ffd6	bl	0x14219e
+  1f31f2:	f767 f9c7	bl	0x15a584
+  1f31f6:	f7d7 fd26	bl	0x1cac46
+  1f31fa:	f735 f841	bl	0x128280
+  1f31fe:	bd00		pop	{pc}
+
+$Init_Serial_Flows:
+  1f3200:	b500		push	{lr}
+  1f3202:	4824		ldr	r0, =0x10aa938	; via 0x1f3294
+  1f3204:	f7b2 fa8a	bl	0x1a571c
+  1f3208:	2000		mov	r0, #0
+  1f320a:	2103		mov	r1, #3
+  1f320c:	2200		mov	r2, #0
+  1f320e:	f7b2 fb26	bl	0x1a585e
+  1f3212:	f7b2 fb80	bl	0x1a5916
+  1f3216:	bd00		pop	{pc}
+
+$Init_Unmask_IT:
+  1f3218:	b500		push	{lr}
+  1f321a:	2004		mov	r0, #4
+  1f321c:	f007 f973	bl	0x1fa506
+  1f3220:	2012		mov	r0, #18	; 0x12
+  1f3222:	f007 f970	bl	0x1fa506
+  1f3226:	2007		mov	r0, #7
+  1f3228:	f007 f96d	bl	0x1fa506
+  1f322c:	2008		mov	r0, #8
+  1f322e:	f007 f96a	bl	0x1fa506
+  1f3232:	bd00		pop	{pc}
+
+$AI_EnableBit:
+  1fc2f0:	4a48		ldr	r2, =0xfffef00a	; via 0x1fc414
+  1fc2f2:	2101		mov	r1, #1
+  1fc2f4:	4081		lsl	r1, r0
+  1fc2f6:	8810		ldrh	r0, [r2, #0]
+  1fc2f8:	4301		orr	r1, r0
+  1fc2fa:	8011		strh	r1, [r2, #0]
+  1fc2fc:	4770		bx	lr
+
+$AI_DisableBit:
+  1fc2fe:	4a45		ldr	r2, =0xfffef00a	; via 0x1fc414
+  1fc300:	2101		mov	r1, #1
+  1fc302:	4081		lsl	r1, r0
+  1fc304:	8810		ldrh	r0, [r2, #0]
+  1fc306:	4388		bic	r0, r1
+  1fc308:	8010		strh	r0, [r2, #0]
+  1fc30a:	4770		bx	lr
+
+$AI_SetBit:
+  1fc30c:	4a42		ldr	r2, =0xfffe4802	; via 0x1fc418
+  1fc30e:	2101		mov	r1, #1
+  1fc310:	4081		lsl	r1, r0
+  1fc312:	8810		ldrh	r0, [r2, #0]
+  1fc314:	4301		orr	r1, r0
+  1fc316:	8011		strh	r1, [r2, #0]
+  1fc318:	4770		bx	lr
+
+$AI_ResetBit:
+  1fc31a:	4a3f		ldr	r2, =0xfffe4802	; via 0x1fc418
+  1fc31c:	2101		mov	r1, #1
+  1fc31e:	4081		lsl	r1, r0
+  1fc320:	8810		ldrh	r0, [r2, #0]
+  1fc322:	4388		bic	r0, r1
+  1fc324:	8010		strh	r0, [r2, #0]
+  1fc326:	4770		bx	lr
+
+$AI_ConfigBitAsOutput:
+  1fc328:	4a3c		ldr	r2, =0xfffe4804	; via 0x1fc41c
+  1fc32a:	2101		mov	r1, #1
+  1fc32c:	4081		lsl	r1, r0
+  1fc32e:	8810		ldrh	r0, [r2, #0]
+  1fc330:	4388		bic	r0, r1
+  1fc332:	8010		strh	r0, [r2, #0]
+  1fc334:	4770		bx	lr
+
+$AI_ConfigBitAsInput:
+  1fc336:	4a39		ldr	r2, =0xfffe4804	; via 0x1fc41c
+  1fc338:	2101		mov	r1, #1
+  1fc33a:	4081		lsl	r1, r0
+  1fc33c:	8810		ldrh	r0, [r2, #0]
+  1fc33e:	4301		orr	r1, r0
+  1fc340:	8011		strh	r1, [r2, #0]
+  1fc342:	4770		bx	lr
+
+$AI_ReadBit:
+  1fc344:	4936		ldr	r1, =0xfffe4800	; via 0x1fc420
+  1fc346:	8809		ldrh	r1, [r1, #0]
+  1fc348:	4101		asr	r1, r0
+  1fc34a:	07c8		lsl	r0, r1, #31
+  1fc34c:	0fc0		lsr	r0, r0, #31
+  1fc34e:	0600		lsl	r0, r0, #24
+  1fc350:	0e00		lsr	r0, r0, #24
+  1fc352:	4770		bx	lr
+
+$AI_Power:
+  1fc354:	b500		push	{lr}
+  1fc356:	2800		cmp	r0, #0
+  1fc358:	d101		bne	0x1fc35e
+  1fc35a:	f7ab fc1b	bl	0x1a7b94	; $ABB_Power_Off
+  1fc35e:	bd00		pop	{pc}
+
+$AI_ResetIoConfig:
+  1fc360:	492e		ldr	r1, =0xfffe4804	; via 0x1fc41c
+  1fc362:	4830		ldr	r0, =0xffff	; via 0x1fc424
+  1fc364:	8008		strh	r0, [r1, #0]
+  1fc366:	482b		ldr	r0, =0xfffef00a	; via 0x1fc414
+  1fc368:	2100		mov	r1, #0
+  1fc36a:	8001		strh	r1, [r0, #0]
+  1fc36c:	4770		bx	lr
+
+$AI_ClockEnable:
+  1fc36e:	492e		ldr	r1, =0xfffe4806	; via 0x1fc428
+  1fc370:	2020		mov	r0, #32	; 0x20
+  1fc372:	880a		ldrh	r2, [r1, #0]
+  1fc374:	4310		orr	r0, r2
+  1fc376:	8008		strh	r0, [r1, #0]
+  1fc378:	4770		bx	lr
+
+$AI_InitIOConfig:
+  1fc37a:	b500		push	{lr}
+  1fc37c:	f7ff fff0	bl	0x1fc360	; $AI_ResetIoConfig
+  1fc380:	2002		mov	r0, #2
+  1fc382:	f7ff ffb5	bl	0x1fc2f0	; $AI_EnableBit
+  1fc386:	2004		mov	r0, #4
+  1fc388:	f7ff ffb2	bl	0x1fc2f0	; $AI_EnableBit
+  1fc38c:	2005		mov	r0, #5
+  1fc38e:	f7ff ffaf	bl	0x1fc2f0	; $AI_EnableBit
+  1fc392:	2006		mov	r0, #6
+  1fc394:	f7ff ffac	bl	0x1fc2f0	; $AI_EnableBit
+  1fc398:	2007		mov	r0, #7
+  1fc39a:	f7ff ffa9	bl	0x1fc2f0	; $AI_EnableBit
+  1fc39e:	2008		mov	r0, #8
+  1fc3a0:	f7ff ffa6	bl	0x1fc2f0	; $AI_EnableBit
+  1fc3a4:	2009		mov	r0, #9
+  1fc3a6:	f7ff ffa3	bl	0x1fc2f0	; $AI_EnableBit
+  1fc3aa:	491b		ldr	r1, =0xfffe4802	; via 0x1fc418
+  1fc3ac:	481f		ldr	r0, =0x3f02	; via 0x1fc42c
+  1fc3ae:	8008		strh	r0, [r1, #0]
+  1fc3b0:	2000		mov	r0, #0
+  1fc3b2:	f7ff ffb9	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3b6:	2001		mov	r0, #1
+  1fc3b8:	f7ff ffb6	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3bc:	2002		mov	r0, #2
+  1fc3be:	f7ff ffb3	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3c2:	2005		mov	r0, #5
+  1fc3c4:	f7ff ffb0	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3c8:	2007		mov	r0, #7
+  1fc3ca:	f7ff ffad	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3ce:	2009		mov	r0, #9
+  1fc3d0:	f7ff ffaa	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3d4:	200e		mov	r0, #14	; 0xe
+  1fc3d6:	f7ff ffa7	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3da:	200f		mov	r0, #15	; 0xf
+  1fc3dc:	f7ff ffa4	bl	0x1fc328	; $AI_ConfigBitAsOutput
+  1fc3e0:	bd00		pop	{pc}
+
+$AI_SelectIOForIT:
+  1fc3e2:	0109		lsl	r1, r1, #4
+  1fc3e4:	1840		add	r0, r0, r1
+  1fc3e6:	0040		lsl	r0, r0, #1
+  1fc3e8:	3001		add	r0, #1
+  1fc3ea:	4911		ldr	r1, =0xfffe4814	; via 0x1fc430
+  1fc3ec:	8008		strh	r0, [r1, #0]
+  1fc3ee:	4770		bx	lr
+
+$AI_CheckITSource:
+  1fc3f0:	2100		mov	r1, #0
+  1fc3f2:	4a10		ldr	r2, =0xfffe4816	; via 0x1fc434
+  1fc3f4:	8812		ldrh	r2, [r2, #0]
+  1fc3f6:	4210		tst	r0, r2
+  1fc3f8:	d000		beq	0x1fc3fc
+  1fc3fa:	2101		mov	r1, #1
+  1fc3fc:	1c08		add	r0, r1, #0
+  1fc3fe:	4770		bx	lr
+
+$AI_UnmaskIT:
+  1fc400:	4a0d		ldr	r2, =0xfffe4818	; via 0x1fc438
+  1fc402:	8811		ldrh	r1, [r2, #0]
+  1fc404:	4381		bic	r1, r0
+  1fc406:	8011		strh	r1, [r2, #0]
+  1fc408:	4770		bx	lr
+
+$AI_MaskIT:
+  1fc40a:	4a0b		ldr	r2, =0xfffe4818	; via 0x1fc438
+  1fc40c:	8811		ldrh	r1, [r2, #0]
+  1fc40e:	4301		orr	r1, r0
+  1fc410:	8011		strh	r1, [r2, #0]
+  1fc412:	4770		bx	lr
+
+; Huawei's added LPG setup function
+  1fc68a:	b500		push	{lr}
+  1fc68c:	490e		ldr	r1, =0xfffef008	; via 0x1fc6c8
+  1fc68e:	2040		mov	r0, #64	; 0x40
+  1fc690:	880a		ldrh	r2, [r1, #0]
+  1fc692:	4310		orr	r0, r2
+  1fc694:	8008		strh	r0, [r1, #0]
+  1fc696:	490d		ldr	r1, =0xfffe7801	; via 0x1fc6cc
+  1fc698:	2001		mov	r0, #1
+  1fc69a:	7008		strb	r0, [r1, #0]
+  1fc69c:	2000		mov	r0, #0
+  1fc69e:	f7ff ffcb	bl	0x1fc638
+  1fc6a2:	bd00		pop	{pc}
+
+$INC_Initialize:
+  202fbc:	b530		push	{r4, r5, lr}
+  202fbe:	1c05		add	r5, r0, #0
+  202fc0:	4c13		ldr	r4, =0x10ab3cc	; via 0x203010
+  202fc2:	2001		mov	r0, #1
+  202fc4:	6020		str	r0, [r4, #0]
+  202fc6:	f001 f8e3	bl	0x204190
+  202fca:	f001 f8e5	bl	0x204198
+  202fce:	f001 f8b3	bl	0x204138
+  202fd2:	f000 fc21	bl	0x203818
+  202fd6:	f7fc f8e9	bl	0x1ff1ac
+  202fda:	f000 fe2b	bl	0x203c34
+  202fde:	f000 fdf9	bl	0x203bd4
+  202fe2:	f000 fe17	bl	0x203c14
+  202fe6:	f000 fde5	bl	0x203bb4
+  202fea:	f000 fe43	bl	0x203c74
+  202fee:	f000 fe01	bl	0x203bf4
+  202ff2:	f000 fe4f	bl	0x203c94
+  202ff6:	f7fe fa33	bl	0x201460
+  202ffa:	f000 fe2b	bl	0x203c54
+  202ffe:	1c28		add	r0, r5, #0
+  203000:	f000 fea8	bl	0x203d54	; $Application_Initialize
+  203004:	2002		mov	r0, #2
+  203006:	6020		str	r0, [r4, #0]
+  203008:	f782 ff04	bl	0x185e14
+  20300c:	bd30		pop	{r4, r5, pc}
+  20300e:	46c0		nop			(mov r8, r8)
+
+$Application_Initialize:
+  203d54:	b500		push	{lr}
+  203d56:	f7ef f9a5	bl	0x1f30a4	; $Init_Target
+  203d5a:	f7ef fa43	bl	0x1f31e4	; $Init_Drivers
+  203d5e:	f077 fed5	bl	0x27bb0c	; $Cust_Init_Layer1
+  203d62:	f7ef fa4d	bl	0x1f3200	; $Init_Serial_Flows
+  203d66:	f766 fb73	bl	0x16a450	; $StartFrame
+  203d6a:	f7ef fa55	bl	0x1f3218	; $Init_Unmask_IT
+  203d6e:	bd00		pop	{pc}
+
+_INC_Initialize:	; ARM->Thumb call veneer
+  203f04:	e92d4000	stmdb	sp!, {lr}
+  203f08:	e28fe001	add	lr, pc, #1
+  203f0c:	e12fff1e	bx	lr
+  203f10:	f7ff f854	bl	0x202fbc
+  203f14:	4778		bx	pc
+  203f16:	46c0		nop			(mov r8, r8)
+  203f18:	e8bd8000	ldmia	sp!, {pc}