EC20 Booting » History » Version 1
zecke, 12/23/2016 11:46 AM
| 1 | 1 | zecke | h1. EC20 Booting |
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| 2 | |||
| 3 | How does the system boot? What is started first? There are various partitions and "boot" and "aboot" seem to be multiple |
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| 4 | bootloaders. When flashing one can activate the android bootloader either via the AT+QFASTBOOT AT command or it seems |
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| 5 | like a special sequence is applied (on diag?). Given the names "boot" and "aboot" it seems that booting to Linux is not done |
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| 6 | directly by "boot". |
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| 7 | |||
| 8 | Analysis needs to be done.. |
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| 9 | |||
| 10 | <pre> |
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| 11 | probably not used. files |
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| 12 | ENPRG9x15.hex |
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| 13 | NPRG9x15.hex |
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| 14 | AT+QDL probably not used too.. many ways to start reflash.. |
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| 15 | </pre> |
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| 16 | |||
| 17 | <pre> |
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| 18 | Partitions: |
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| 19 | [ 1.123851] 0x0000050c0000-0x000005b00000 : "boot" |
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| 20 | [ 1.130260] 0x000000140000-0x0000004a0000 : "sbl2" |
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| 21 | [ 1.135479] 0x0000004a0000-0x000000800000 : "rpm" |
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| 22 | [ 1.140485] 0x000000800000-0x000000d80000 : "efs2" |
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| 23 | [ 1.145643] 0x000000d80000-0x0000012e0000 : "dsp1" |
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| 24 | [ 1.150770] 0x0000012e0000-0x000001d20000 : "dsp3" |
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| 25 | [ 1.156020] 0x000001d20000-0x000004fe0000 : "dsp2" |
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| 26 | [ 1.161147] 0x000004fe0000-0x0000050c0000 : "aboot" |
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| 27 | </pre> |
