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author | Alexander Kurz <akurz@blala.de> | 2016-07-09 15:09:44 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-07-11 07:51:44 +0200 |
commit | 4f0abb8db08b4970e9d58d79947638f8e298fcf6 (patch) | |
tree | ca3b9302c69793d84148e36ff22eb4e39f63ad58 /arch/arm/lib32 | |
parent | a157195b73752c9fa73938588177bd4d211ab9c4 (diff) | |
download | barebox-4f0abb8db08b4970e9d58d79947638f8e298fcf6.tar.gz barebox-4f0abb8db08b4970e9d58d79947638f8e298fcf6.tar.xz |
ARM i.MX35: Add support for the Amazon Kindle3
The Amazon Model No. D00901 Kindle3 is an E-Book reader based on the
i.MX35 SOC. The device boots in internal boot mode from a build-in eMMC,
alternatively the device may be set into USB-downloader mode when the
Vol+ key is pressed on startup.
Add support for this device and make barebox a drop-in replacement for
the factory shipped u-boot image.
Constraints for the use as drop-in replacement:
- imximg header (offset 0x400) has a maximum size of 2kB minus 16 byte
since the last 16 bytes are used to store a vendor specific hardware
desctription identifier
- the bootloader space (application plus env) is limited to 256kB minus
16 bytes when installed with offset of 4kB (the u-boot offset was 3kB).
A vendor specific device identifier is stored in the gap between
application and kernel. The vendor specific identifiers should not
be overwritten.
Notable features:
- Support for eMMC, USB, UART, I2C, SPI and Keys (except keyboard)
- Full support for vendor specific ATAGs
- usbserial barebox console access by pressing Select button at startup,
alternatively full console support on connector J14.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/lib32')
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