README (1622559066d890f1b7622be0ede8a5d64de66ef3) README (54d63bb1ad4fbf95e7136a4fef819e4631adbc39)
1How to use and build U-Boot on mx6sabresd:
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1How to use and build U-Boot on mx6sabresd
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3
3
4Currently there are four methods for booting mx6sabresd boards:
4The following methods can be used for booting mx6sabresd boards:
5
5
61. Booting from SD card via normal U-Boot (u-boot.imx)
61. Booting from SD card
7
7
82. Booting from eMMC via normal U-Boot
82. Booting from eMMC
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9
103. Booting via SPL (SPL and u-boot.img)
103. Booting via Falcon mode (SPL launches the kernel directly)
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11
124. Booting via Falcon mode (SPL launches the kernel directly)
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12
131. Booting from SD card via SPL
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14
15
151. Booting from SD card via normal U-Boot
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16mx6sabresd_defconfig target supports mx6q/mx6dl/mx6qp sabresd variants.
17
17
18$ make mx6qsabresd_defconfig (If you want to build for mx6qsabresd)
18In order to build it:
19
19
20or
20$ make mx6sabresd_defconfig
21
21
22$ make mx6dlsabresd_defconfig (If you want to build for mx6dlsabresd)
23
24$ make
25
22$ make
23
26This will generate the image called u-boot.imx.
24This will generate the SPL and u-boot.img binaries.
27
25
28- Flash the u-boot.imx binary into the SD card:
26- Flash the SPL binary into the SD card:
29
27
30$ sudo dd if=u-boot.imx of=/dev/sdb bs=1K seek=1 && sync
28$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 && sync
31
29
30- Flash the u-boot.img binary into the SD card:
32
31
332. Booting from eMMC via normal U-Boot
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32$ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 && sync
35
33
36$ make mx6qsabresd_defconfig (If you want to build for mx6qsabresd)
37
34
38or
352. Booting from eMMC
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39
37
40$ make mx6dlsabresd_defconfig (If you want to build for mx6dlsabresd)
38$ make mx6sabresd_defconfig
41
42$ make
43
39
40$ make
41
44This will generate the image called u-boot.imx.
42This will generate the SPL and u-boot.img binaries.
45
43
46- Flash the u-boot.imx binary into the eMMC:
44- Boot first from SD card as shown in the previous section
47
45
48Set SW6 to download mode: 00001100
49
50Plug a usb cable to USB-OTG and load the u-boot image using the imx_usb_loader
51tool (https://github.com/boundarydevices/imx_usb_loader):
52
53$ sudo ./imx_usb u-boot.imx
54
55In U-boot change the eMMC partition config:
56
57=> mmc partconf 2 1 0 0
58
59Mount the eMMC in the host PC:
60
61=> ums 0 mmc 2
62
46In U-boot change the eMMC partition config:
47
48=> mmc partconf 2 1 0 0
49
50Mount the eMMC in the host PC:
51
52=> ums 0 mmc 2
53
63Flash the u-boot.imx binary
54- Flash SPL and u-boot.img binaries into the eMMC:
64
55
65$ sudo dd if=u-boot.imx of=/dev/sdX bs=1K seek=1 && sync
56$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 && sync
57$ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 && sync
66
67Set SW6 to eMMC 8-bit boot: 11010110
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69
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59Set SW6 to eMMC 8-bit boot: 11010110
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61
703. Booting via SPL
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72
73Other method for building U-Boot on mx6qsabresd and mx6qpsabresd is
74through SPL. In order to do so:
75
76$ make mx6sabresd_spl_defconfig
77$ make
78
79This will generate the SPL image called SPL and the u-boot.img.
80
81- Flash the SPL image into the SD card:
82
83$ sudo dd if=SPL of=/dev/sdb bs=1K seek=1 && sync
84
85- Flash the u-boot.img image into the SD card:
86
87$ sudo dd if=u-boot.img of=/dev/sdbbs=1K seek=69 && sync
88
89
904. Booting via Falcon mode
623. Booting via Falcon mode
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92
63--------------------------
64
93$ make mx6sabresd_spl_defconfig
65$ make mx6sabresd_defconfig
94$ make
95
96This will generate the SPL image called SPL and the u-boot.img.
97
98- Flash the SPL image into the SD card:
99
66$ make
67
68This will generate the SPL image called SPL and the u-boot.img.
69
70- Flash the SPL image into the SD card:
71
100$ sudo dd if=SPL of=/dev/sdb bs=1K seek=1 oflag=sync status=none && sync
72$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 oflag=sync status=none && sync
101
102- Flash the u-boot.img image into the SD card:
103
73
74- Flash the u-boot.img image into the SD card:
75
104$ sudo dd if=u-boot.img of=/dev/sdbbs=1K seek=69 oflag=sync status=none && sync
76$ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 oflag=sync status=none && sync
105
106Create a partition for root file system and extract it there:
107
108$ sudo tar xvf rootfs.tar.gz -C /media/root
109
110The SD card must have enough space for raw "args" and "kernel".
111To configure Falcon mode for the first time, on U-Boot do the following commands:
112

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78Create a partition for root file system and extract it there:
79
80$ sudo tar xvf rootfs.tar.gz -C /media/root
81
82The SD card must have enough space for raw "args" and "kernel".
83To configure Falcon mode for the first time, on U-Boot do the following commands:
84

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