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d5bc813f40
This board has soldered on flash, and a SODIMM flash module. Both can be used for booting, via switching JP12 and SW2.8 and using the sbc8548-altflash.dts when booting from SODIMM. Here we enable MTD in kernel so that we can see the bootloader (and other flash sectors) from linux. Normal configuration: root@sbc8548:~# cat /proc/mtd dev: size erasesize name mtd0: 007a0000 00020000 "space" mtd1: 00060000 00020000 "bootloader" mtd2: 03f00000 00080000 "space" mtd3: 00100000 00080000 "bootloader" root@sbc8548:~# dd if=/dev/mtd1 count=1 bs=48|hexdump -C 1+0 records in 1+0 records out 00000000 27 05 19 56 55 2d 42 6f 6f 74 20 32 30 31 32 2e |'..VU-Boot 2012.| 00000010 31 30 2d 64 69 72 74 79 20 28 4a 61 6e 20 31 39 |10-dirty (Jan 19| 00000020 20 32 30 31 33 20 2d 20 31 39 3a 34 30 3a 31 31 | 2013 - 19:40:11| 00000030 root@sbc8548:~# dd if=/dev/mtd3 count=1 bs=48|hexdump -C 1+0 records in 1+0 records out 00000000 27 05 19 56 55 2d 42 6f 6f 74 20 32 30 31 32 2e |'..VU-Boot 2012.| 00000010 31 30 2d 64 69 72 74 79 20 28 44 65 63 20 31 33 |10-dirty (Dec 13| 00000020 20 32 30 31 32 20 2d 20 31 35 3a 30 30 3a 30 37 | 2012 - 15:00:07| 00000030 root@sbc8548:~# Alternate configuration, with sbc8548-altflash.dts: root@sbc8548:~# cat /proc/mtd dev: size erasesize name mtd0: 03f00000 00080000 "space" mtd1: 00100000 00080000 "bootloader" mtd2: 007a0000 00020000 "space" mtd3: 00060000 00020000 "bootloader" root@sbc8548:~# dd if=/dev/mtd1 count=1 bs=48|hexdump -C 1+0 records in 1+0 records out 00000000 27 05 19 56 55 2d 42 6f 6f 74 20 32 30 31 32 2e |'..VU-Boot 2012.| 00000010 31 30 2d 64 69 72 74 79 20 28 44 65 63 20 31 33 |10-dirty (Dec 13| 00000020 20 32 30 31 32 20 2d 20 31 35 3a 30 30 3a 30 37 | 2012 - 15:00:07| 00000030 root@sbc8548:~# dd if=/dev/mtd3 count=1 bs=48|hexdump -C 1+0 records in 1+0 records out 00000000 27 05 19 56 55 2d 42 6f 6f 74 20 32 30 31 32 2e |'..VU-Boot 2012.| 00000010 31 30 2d 64 69 72 74 79 20 28 4a 61 6e 20 31 39 |10-dirty (Jan 19| 00000020 20 32 30 31 33 20 2d 20 31 39 3a 34 30 3a 31 31 | 2013 - 19:40:11| 00000030 root@sbc8548:~# Note that in the latter, the larger SODIMM device appears 1st, as mtd0 and mtd1, as indicated in the sizes, and in the date of the u-boot image. The kernel configuration is the same in both cases; only the dtb needs to be changed in accordance with the JP12/SW2.8 settings. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
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| 40x | ||
| 44x | ||
| 52xx | ||
| 83xx | ||
| 85xx | ||
| 86xx | ||
| adder875_defconfig | ||
| amigaone_defconfig | ||
| c2k_defconfig | ||
| cell_defconfig | ||
| celleb_defconfig | ||
| chroma_defconfig | ||
| chrp32_defconfig | ||
| corenet32_smp_defconfig | ||
| corenet64_smp_defconfig | ||
| ep88xc_defconfig | ||
| ep8248e_defconfig | ||
| g5_defconfig | ||
| gamecube_defconfig | ||
| holly_defconfig | ||
| linkstation_defconfig | ||
| maple_defconfig | ||
| mgcoge_defconfig | ||
| mpc83xx_defconfig | ||
| mpc85xx_defconfig | ||
| mpc85xx_smp_defconfig | ||
| mpc86xx_defconfig | ||
| mpc512x_defconfig | ||
| mpc866_ads_defconfig | ||
| mpc885_ads_defconfig | ||
| mpc5200_defconfig | ||
| mpc7448_hpc2_defconfig | ||
| mpc8272_ads_defconfig | ||
| pasemi_defconfig | ||
| pmac32_defconfig | ||
| ppc6xx_defconfig | ||
| ppc40x_defconfig | ||
| ppc44x_defconfig | ||
| ppc64_defconfig | ||
| ppc64e_defconfig | ||
| pq2fads_defconfig | ||
| prpmc2800_defconfig | ||
| ps3_defconfig | ||
| pseries_defconfig | ||
| storcenter_defconfig | ||
| tqm8xx_defconfig | ||
| wii_defconfig | ||