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Commit 59b4523d111fd7b77e43297e11e220164ec8c909

Authored by wdenk 2002-03-21 17:13:59 +0800

1 parent 77bc4f9e30

Exists in master and in 54 other branches

Initial revision

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board/lart/flashasm.S

board/lart/flashasm.S

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	1	+/*
	2	+ * flashasm.S: flash magic for LART
	3	+ *
	4	+ * Copyright (C) 1999 2000 2001 Jan-Derk bakker (J.D.Bakker@its.tudelft.nl)
	5	+ *
	6	+ * This program is free software; you can redistribute it and/or modify
	7	+ * it under the terms of the GNU General Public License as published by
	8	+ * the Free Software Foundation; either version 2 of the License, or
	9	+ * (at your option) any later version.
	10	+ *
	11	+ * This program is distributed in the hope that it will be useful,
	12	+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	+ * GNU General Public License for more details.
	15	+ *
	16	+ * You should have received a copy of the GNU General Public License
	17	+ * along with this program; if not, write to the Free Software
	18	+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	+ *
	20	+ */
	21	+
	22	+.text
	23	+
	24	+
	25	+.globl data_to_flash
	26	+.globl data_from_flash
	27	+ /* Subroutine that takes data in r0 and formats it so it will be in */
	28	+ /* the correct order for the internal flash */
	29	+ /* used for LART only */
	30	+data_to_flash:
	31	+ mov r1, #0x0
	32	+
	33	+ tst r0, #0x00000001
	34	+ orrne r1, r1, #0x00001000
	35	+ tst r0, #0x00000002
	36	+ orrne r1, r1, #0x00004000
	37	+ tst r0, #0x00000004
	38	+ orrne r1, r1, #0x00000800
	39	+ tst r0, #0x00000008
	40	+ orrne r1, r1, #0x00000200
	41	+ tst r0, #0x00000010
	42	+ orrne r1, r1, #0x00000001
	43	+ tst r0, #0x00000020
	44	+ orrne r1, r1, #0x00000004
	45	+ tst r0, #0x00000040
	46	+ orrne r1, r1, #0x00000080
	47	+ tst r0, #0x00000080
	48	+ orrne r1, r1, #0x00000020
	49	+
	50	+ tst r0, #0x00000100
	51	+ orrne r1, r1, #0x00002000
	52	+ tst r0, #0x00000200
	53	+ orrne r1, r1, #0x00008000
	54	+ tst r0, #0x00000400
	55	+ orrne r1, r1, #0x00000400
	56	+ tst r0, #0x00000800
	57	+ orrne r1, r1, #0x00000100
	58	+ tst r0, #0x00001000
	59	+ orrne r1, r1, #0x00000002
	60	+ tst r0, #0x00002000
	61	+ orrne r1, r1, #0x00000008
	62	+ tst r0, #0x00004000
	63	+ orrne r1, r1, #0x00000040
	64	+ tst r0, #0x00008000
	65	+ orrne r1, r1, #0x00000010
	66	+
	67	+ tst r0, #0x00010000
	68	+ orrne r1, r1, #0x00100000
	69	+ tst r0, #0x00020000
	70	+ orrne r1, r1, #0x00400000
	71	+ tst r0, #0x00040000
	72	+ orrne r1, r1, #0x00080000
	73	+ tst r0, #0x00080000
	74	+ orrne r1, r1, #0x00020000
	75	+ tst r0, #0x00100000
	76	+ orrne r1, r1, #0x01000000
	77	+ tst r0, #0x00200000
	78	+ orrne r1, r1, #0x04000000
	79	+ tst r0, #0x00400000
	80	+ orrne r1, r1, #0x80000000
	81	+ tst r0, #0x00800000
	82	+ orrne r1, r1, #0x20000000
	83	+
	84	+ tst r0, #0x01000000
	85	+ orrne r1, r1, #0x00200000
	86	+ tst r0, #0x02000000
	87	+ orrne r1, r1, #0x00800000
	88	+ tst r0, #0x04000000
	89	+ orrne r1, r1, #0x00040000
	90	+ tst r0, #0x08000000
	91	+ orrne r1, r1, #0x00010000
	92	+ tst r0, #0x10000000
	93	+ orrne r1, r1, #0x02000000
	94	+ tst r0, #0x20000000
	95	+ orrne r1, r1, #0x08000000
	96	+ tst r0, #0x40000000
	97	+ orrne r1, r1, #0x40000000
	98	+ tst r0, #0x80000000
	99	+ orrne r1, r1, #0x10000000
	100	+
	101	+ mov r0, r1
	102	+ mov pc, lr
	103	+
	104	+ /* Takes data received from the flash, and unshuffles it. */
	105	+data_from_flash:
	106	+ mov r1, #0x00
	107	+
	108	+ tst r0, #0x00000001
	109	+ orrne r1, r1, #0x00000010
	110	+ tst r0, #0x00000002
	111	+ orrne r1, r1, #0x00001000
	112	+ tst r0, #0x00000004
	113	+ orrne r1, r1, #0x00000020
	114	+ tst r0, #0x00000008
	115	+ orrne r1, r1, #0x00002000
	116	+ tst r0, #0x00000010
	117	+ orrne r1, r1, #0x00008000
	118	+ tst r0, #0x00000020
	119	+ orrne r1, r1, #0x00000080
	120	+ tst r0, #0x00000040
	121	+ orrne r1, r1, #0x00004000
	122	+ tst r0, #0x00000080
	123	+ orrne r1, r1, #0x00000040
	124	+
	125	+ tst r0, #0x00000100
	126	+ orrne r1, r1, #0x00000800
	127	+ tst r0, #0x00000200
	128	+ orrne r1, r1, #0x00000008
	129	+ tst r0, #0x00000400
	130	+ orrne r1, r1, #0x00000400
	131	+ tst r0, #0x00000800
	132	+ orrne r1, r1, #0x00000004
	133	+ tst r0, #0x00001000
	134	+ orrne r1, r1, #0x00000001
	135	+ tst r0, #0x00002000
	136	+ orrne r1, r1, #0x00000100
	137	+ tst r0, #0x00004000
	138	+ orrne r1, r1, #0x00000002
	139	+ tst r0, #0x00008000
	140	+ orrne r1, r1, #0x00000200
	141	+
	142	+ tst r0, #0x00010000
	143	+ orrne r1, r1, #0x08000000
	144	+ tst r0, #0x00020000
	145	+ orrne r1, r1, #0x00080000
	146	+ tst r0, #0x00040000
	147	+ orrne r1, r1, #0x04000000
	148	+ tst r0, #0x00080000
	149	+ orrne r1, r1, #0x00040000
	150	+ tst r0, #0x00100000
	151	+ orrne r1, r1, #0x00010000
	152	+ tst r0, #0x00200000
	153	+ orrne r1, r1, #0x01000000
	154	+ tst r0, #0x00400000
	155	+ orrne r1, r1, #0x00020000
	156	+ tst r0, #0x00800000
	157	+ orrne r1, r1, #0x02000000
	158	+
	159	+ tst r0, #0x01000000
	160	+ orrne r1, r1, #0x00100000
	161	+ tst r0, #0x02000000
	162	+ orrne r1, r1, #0x10000000
	163	+ tst r0, #0x04000000
	164	+ orrne r1, r1, #0x00200000
	165	+ tst r0, #0x08000000
	166	+ orrne r1, r1, #0x20000000
	167	+ tst r0, #0x10000000
	168	+ orrne r1, r1, #0x80000000
	169	+ tst r0, #0x20000000
	170	+ orrne r1, r1, #0x00800000
	171	+ tst r0, #0x40000000
	172	+ orrne r1, r1, #0x40000000
	173	+ tst r0, #0x80000000
	174	+ orrne r1, r1, #0x00400000
	175	+
	176	+ mov r0, r1
	177	+ mov pc, lr