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authorChander Kashyap <chander.kashyap@linaro.org>2012-09-06 19:36:31 +0000
committerJoe Hershberger <joe.hershberger@ni.com>2012-09-27 12:22:11 -0500
commita655938a93410a468f8e2288edc20d20a272a6d4 (patch)
tree7050809052991a0f863866578b84631c734aeed7 /net
parentc0b5a3bbb0cd40a6b23b7b07e2182a5bcdc8c31c (diff)
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PXE: FDT: Add support for fdt in PXE
Now DT support is becoming common for all new SoC's. Hence it is better to have option for getting specific FDT from the remote server. This patch adds support for new label i.e. 'fdt'. This will allow to retrieve 'fdt blob' from the remote server. This patch take care for the following scenarios. The usage of fdt is optional. The 'fdt blob' can be retrieved from tftp or can be available locally or can be absent. If 'fdt_addr_r' environment variable is set and 'fdt' label is defined retrieve 'fdt blob' from tftp. 'fdt_addr_r' is then passed along bootm command. If 'fdt_addr' is set and 'fdt blob' is not retrieved from the tftp pass 'fdt_addr' to bootm command. In this case 'fdt blob' will be available at 'fdt_addr'. If 'fdt_addr' is not set and 'fdt blob' is not retrieve from tftp pass NULL to boot command. In this case 'fdt blob' is not required and absent. Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org> Acked-by: Jason Hobbs <jason.hobbs@calxeda.com>
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