version 1.1.2.2, 2014/01/21 22:51:27
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version 1.1.2.7, 2014/01/23 23:11:12
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u-boot |
u-boot |
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u-boot map:: | u-boot 8MB nand map:: |
0x00000000 - 0x00040000 u-boot (256KB) | 0x00000000 - 0x00040000 u-boot (256KB == 262144) // +0x40000 |
0x00040000 - 0x00050000 u-boot-env (64KB) | 0x00040000 - 0x00050000 u-boot-env (64KB == 65536) // +0x10000 |
0x00050000 - 0x00650000 rootfs (6291456) | 0x00050000 - 0x00650000 rootfs (6144KB == 6291456) // +0x600000 |
0x00650000 - 0x007E0000 uImage (1638400) | 0x00650000 - 0x007E0000 uImage (1600KB == 1638400) // +0x190000 |
0x007E0000 - 0x007F0000 nvram (64KB) | 0x007E0000 - 0x007F0000 cfg (64KB == 65536) // +0x10000 |
0x007F0000 - 0x00800000 ART (64KB) | 0x007F0000 - 0x00800000 ART (64KB == 65536) // +0x10000 |
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Helper nand map for easy updates :) |
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* 0x00050000 - 0x007E0000 firmware (7929856) // +0x790000 |
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u-boot environment:: |
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mtdids=nor0=ar7240-nor0 |
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mtddevnum=0 |
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mtddevname=u-boot |
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mtdparts=mtdparts=ar7240-nor0:256k(u-boot),64k(u-boot-env),6m(rootfs),1600k(uImage),64k(cfg),64k(ART) |
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u-boot mtdparts:: |
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device nor0 <ar7240-nor0>, # parts = 6 |
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#: name size offset mask_flags |
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0: u-boot 0x00040000 0x00000000 0 |
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1: u-boot-env 0x00010000 0x00040000 0 |
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2: rootfs 0x00600000 0x00050000 0 |
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3: uImage 0x00190000 0x00650000 0 |
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4: cfg 0x00010000 0x007e0000 0 |
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5: ART 0x00010000 0x007f0000 0 |
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active partition: nor0,0 - (u-boot) 0x00040000 @ 0x00000000 |
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u-boot make mtdparts on NAND:: |
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mtd default |
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mtd del nor0,5 |
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mtd del nor0,4 |
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mtd del nor0,3 |
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mtd del nor0,2 |
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mtd add nor0 0x600000 rootfs |
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mtd add nor0 0x190000 uImage |
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mtd add nor0 0x10000 cfg |
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mtd add nor0 0x10000 ART |
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save |
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1. update kernel |
1. update kernel |
tftp 0x81000000 kernel.lzma.uImage |
tftp 0x81000000 kernel.lzma.uImage |
era 0x9F650000 +0x190000 |
era 0x9F650000 +0x190000 |
cp.b 0x81000000 0x9F650000 0x190000 |
cp.b 0x81000000 0x9F650000 0x190000 |
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2. update rootfs |
2. update rootfs |
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tftp 0x80100000 rootfs.ulzma |
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era 0x9F050000 +0x600000 |
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cp.b 0x80100000 0x9F050000 0x600000 |
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3. update cfg |
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tftp 0x80100000 cfg.dsk |
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era 0x9f7E0000 +0x10000 |
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cp.b 0x80100000 0x9f7e0000 0x10000 |