mtd: rawnand: gpmi: regression since e5e5631cc88987a6f3cd8304660bd9190da95916
From: Juergen Borleis
Date: Tue Nov 17 2020 - 05:16:33 EST
Hi,
reading a NAND page in raw mode is required to check the consistence of the so-
called FCBs (used to boot the SoC from NAND content).
Before e5e5631cc88987a6f3cd8304660bd9190da95916 ("mtd: rawnand: gpmi: Use
nand_extract_bits()") it reads the first page of the NAND correctly as:
00000000 00 00 88 fb ff ff 46 43 42 20 00 00 00 01 50 3c |......FCB ....P<|
00000010 19 06 00 00 00 00 00 08 00 00 80 08 00 00 40 00 |..............@.|
00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09 00 |................|
00000030 00 00 00 02 00 00 00 02 00 00 09 00 00 00 0a 00 |................|
00000040 00 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000060 00 00 00 00 00 00 00 00 00 00 00 01 00 00 80 10 |................|
00000070 00 00 55 01 00 00 55 01 00 00 01 00 00 00 9e 07 |..U...U.........|
00000080 00 00 02 00 00 00 00 08 00 00 00 00 00 00 00 00 |................|
00000090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000200 40 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |@...............|
00000210 40 01 00 00 00 80 05 00 00 80 05 00 40 01 00 00 |@...........@...|
00000220 c0 03 00 00 80 02 00 00 00 00 00 00 00 00 00 00 |................|
00000230 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000240 00 00 00 00 00 00 00 00 00 00 00 00 00 00 07 00 |................|
00000250 80 83 06 00 00 00 07 00 00 00 07 00 00 07 00 00 |................|
00000260 00 42 06 00 80 05 00 00 00 40 06 00 00 00 00 00 |.B.......@......|
00000270 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000790 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc |................|
000007a0 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000007b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000800 ff 00 00 00 00 00 00 00 00 00 00 00 17 15 06 06 |................|
00000810 10 1f 03 07 00 00 00 1c 0f 17 1f 05 00 00 00 00 |................|
00000820 00 19 00 00 0e 19 00 00 00 00 00 00 00 00 00 00 |................|
00000830 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000880
After applying e5e5631cc88987a6f3cd8304660bd9190da95916 reading the same page
the reported content is broken (the NAND page still contains correct data):
00000000 00 00 88 fb ff ff 46 43 42 20 00 00 00 01 50 3c |......FCB ....P<|
00000010 19 06 00 00 00 00 00 08 00 00 80 08 00 00 40 00 |..............@.|
00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09 00 |................|
00000030 00 00 00 02 00 00 00 02 00 00 09 00 00 00 0a 00 |................|
00000040 40 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |@...............|
00000050 40 01 00 00 00 80 05 00 00 80 05 00 40 01 00 00 |@...........@...|
00000060 c0 03 00 00 80 02 00 00 00 00 00 00 00 00 00 00 |................|
00000070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000250 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc |................|
00000260 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000270 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000002c0 06 70 c0 a8 00 00 00 00 00 00 00 00 40 00 00 00 |.p..........@...|
000002d0 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000002e0 00 00 00 00 00 01 00 00 10 00 00 00 fe 80 00 00 |................|
000002f0 00 00 00 00 52 2d f4 ff fe 0a f9 6b 80 00 00 00 |....R-.....k....|
00000300 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000310 00 00 00 00 00 00 00 00 10 00 00 00 fe 80 00 00 |................|
00000320 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00 |............@...|
00000330 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000340 00 00 00 00 00 01 00 00 10 00 00 00 ff 00 00 00 |................|
00000350 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00 |................|
00000360 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000370 00 00 00 00 00 01 00 00 09 00 00 00 52 6f 75 74 |............Rout|
00000380 65 44 61 74 61 00 06 61 61 7b 73 76 7d 00 00 00 |eData..aa{sv}...|
00000390 28 02 00 00 64 00 00 00 04 00 00 00 64 65 73 74 |(...d.......dest|
000003a0 00 01 73 00 25 00 00 00 32 30 30 31 3a 36 37 63 |..s.%...2001:67c|
000003b0 3a 36 37 30 3a 63 30 61 38 3a 35 32 32 64 3a 66 |:670:c0a8:522d:f|
000003c0 34 66 66 3a 66 65 30 61 3a 66 39 36 62 00 00 00 |4ff:fe0a:f96b...|
000003d0 06 00 00 00 70 72 65 66 69 78 00 01 75 00 00 00 |....prefix..u...|
000003e0 80 00 00 00 00 00 00 00 06 00 00 00 6d 65 74 72 |............metr|
000003f0 69 63 00 01 75 00 00 00 00 00 00 00 54 00 00 00 |ic..u.......T...|
00000400 00 b0 c8 ec 64 65 73 74 00 01 73 00 13 00 00 00 |....dest..s.....|
00000410 32 30 30 31 3a 36 37 63 3a 36 37 30 3a 63 30 61 |2001:67c:670:c0a|
00000420 38 3a 3a 00 00 00 00 00 06 00 00 00 70 72 65 66 |8::.........pref|
00000430 69 78 00 01 75 00 00 00 40 00 00 00 00 00 00 00 |ix..u...@.......|
00000440 06 00 00 00 6d 65 74 72 69 63 00 01 75 00 00 00 |....metric..u...|
00000450 00 01 00 00 5c 00 00 00 04 00 00 00 64 65 73 74 |....\.......dest|
00000460 00 01 73 00 19 00 00 00 66 65 38 30 3a 3a 35 32 |..s.....fe80::52|
00000470 32 64 3a 66 34 66 66 3a 66 65 30 61 3a 66 39 36 |2d:f4ff:fe0a:f96|
00000480 62 00 00 00 00 00 00 00 06 00 00 00 70 72 65 66 |b...........pref|
00000490 69 78 00 01 75 00 00 00 80 00 00 00 00 00 00 00 |ix..u...........|
000004a0 06 00 00 00 6d 65 74 72 69 63 00 01 75 00 00 00 |....metric..u...|
000004b0 00 00 00 00 44 00 00 00 04 00 00 00 64 65 73 74 |....D.......dest|
000004c0 00 01 73 00 06 00 00 00 66 65 38 30 3a 3a 00 00 |..s.....fe80::..|
000004d0 06 00 00 00 70 72 65 66 69 78 00 01 75 00 00 00 |....prefix..u...|
000004e0 40 00 00 00 00 00 00 00 06 00 00 00 6d 65 74 72 |@...........metr|
000004f0 69 63 00 01 75 00 00 00 00 01 00 00 44 00 00 00 |ic..u.......D...|
00000500 04 00 00 00 64 65 73 74 00 01 73 00 06 00 00 00 |....dest..s.....|
00000510 66 66 30 30 3a 3a 00 00 06 00 00 00 70 72 65 66 |ff00::......pref|
00000520 69 78 00 01 75 00 00 00 08 00 00 00 00 00 00 00 |ix..u...........|
00000530 06 00 00 00 6d 65 74 72 69 63 00 01 75 00 00 00 |....metric..u...|
00000540 00 01 00 00 74 00 00 00 04 00 00 00 64 65 73 74 |....t.......dest|
00000550 00 01 73 00 02 00 00 00 3a 3a 00 00 00 00 00 00 |..s.....::......|
00000560 06 00 00 00 70 72 65 66 69 78 00 01 75 00 00 00 |....prefix..u...|
00000570 00 00 00 00 00 00 00 00 08 00 00 00 6e 65 78 74 |............next|
00000580 2d 68 6f 70 00 01 73 00 17 00 00 00 66 65 38 30 |-hop..s.....fe80|
00000590 3a 3a 35 30 35 34 3a 66 66 3a 66 65 62 33 3a 61 |::5054:ff:feb3:a|
000005a0 35 66 62 00 00 00 00 00 06 00 00 00 6d 65 74 72 |5fb.........metr|
000005b0 69 63 00 01 75 00 00 00 00 04 00 00 00 00 00 00 |ic..u...........|
000005c0 0b 00 00 00 4e 61 6d 65 73 65 72 76 65 72 73 00 |....Nameservers.|
000005d0 03 61 61 79 00 00 00 00 00 00 00 00 00 00 00 00 |.aay............|
000005e0 07 00 00 00 44 6f 6d 61 69 6e 73 00 02 61 73 00 |....Domains..as.|
000005f0 00 00 00 00 00 00 00 00 08 00 00 00 53 65 61 72 |............Sear|
00000600 63 68 65 73 00 02 61 73 00 00 00 00 00 00 00 00 |ches..as........|
00000610 0a 00 00 00 44 6e 73 4f 70 74 69 6f 6e 73 00 02 |....DnsOptions..|
00000620 61 73 00 00 00 00 00 00 0b 00 00 00 44 6e 73 50 |as..........DnsP|
00000630 72 69 6f 72 69 74 79 00 01 69 00 00 64 00 00 00 |riority..i..d...|
00000640 09 00 00 00 46 6c 6f 77 4c 61 62 65 6c 00 01 75 |....FlowLabel..u|
00000650 00 00 00 00 00 00 00 00 05 00 00 00 46 6c 61 67 |............Flag|
00000660 73 00 01 75 00 00 00 00 00 00 00 00 30 02 30 02 |s..u........0.0.|
00000670 30 02 30 02 30 02 30 02 30 02 30 02 30 02 30 02 |0.0.0.0.0.0.0.0.|
00000680 30 02 30 02 30 02 30 02 30 02 30 02 30 02 72 00 |0.0.0.0.0.0.0.r.|
00000690 72 00 72 00 31 02 31 02 31 02 31 02 31 02 31 02 |r.r.1.1.1.1.1.1.|
000006a0 31 02 31 02 31 02 31 02 31 02 31 02 31 02 31 02 |1.1.1.1.1.1.1.1.|
*
000006f0 31 02 31 02 31 02 72 00 72 00 72 00 72 00 72 00 |1.1.1.r.r.r.r.r.|
00000700 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000720 01 00 00 00 00 00 00 00 17 00 17 00 17 00 17 00 |................|
00000730 17 00 17 00 17 00 17 00 17 00 17 00 17 00 17 00 |................|
00000740 17 00 17 00 17 00 17 00 17 00 17 00 72 00 72 00 |............r.r.|
00000750 72 00 72 00 32 02 32 02 32 02 32 02 32 02 32 02 |r.r.2.2.2.2.2.2.|
00000760 32 02 32 02 32 02 32 02 32 02 32 02 32 02 32 02 |2.2.2.2.2.2.2.2.|
*
00000790 32 02 32 02 33 02 33 02 33 02 33 02 72 00 72 00 |2.2.3.3.3.3.r.r.|
000007a0 72 00 72 00 72 00 72 00 72 00 72 00 72 00 72 00 |r.r.r.r.r.r.r.r.|
000007b0 72 00 72 00 34 02 34 02 34 02 34 02 34 02 34 02 |r.r.4.4.4.4.4.4.|
000007c0 34 02 34 02 34 02 34 02 34 02 34 02 34 02 34 02 |4.4.4.4.4.4.4.4.|
000007d0 34 02 34 02 34 02 35 02 34 02 34 02 34 02 34 02 |4.4.4.5.4.4.4.4.|
000007e0 34 02 34 02 34 02 34 02 35 02 72 00 72 00 72 00 |4.4.4.4.5.r.r.r.|
000007f0 72 00 72 00 36 02 36 02 36 02 36 02 36 02 36 02 |r.r.6.6.6.6.6.6.|
00000800 ff 00 00 00 00 00 00 00 00 00 00 00 17 15 06 06 |................|
00000810 10 1f 03 07 00 00 00 1c 0f 17 1f 05 00 00 00 00 |................|
00000820 00 19 00 00 0e 19 00 00 00 00 00 00 00 00 00 00 |................|
00000830 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
Juergen
--
Pengutronix e.K. | Juergen Borleis |
Steuerwalder Str. 21 | https://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-128 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |