mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-02 00:03:45 +09:00
e2beb872f7
The firmware that runs before u-boot modifies u-boot's device tree adding the local-mac-address and local-bd-address properties for the compatibles "qcom,wcnss-bt" and "qcom,wcnss-wlan". This commit reads that firmware, retrieves the properties and fixups the device tree that is passed to the kernel before booting. Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
29 lines
505 B
ArmAsm
29 lines
505 B
ArmAsm
/*
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* (C) Copyright 2016
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* Cédric Schieli <cschieli@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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.align 8
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.global fw_dtb
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fw_dtb:
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.dword 0x0
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/*
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* Routine: save_boot_params (called after reset from start.S)
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* Description: save ATAG/FDT address provided by the firmware at boot time
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*/
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.global save_boot_params
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save_boot_params:
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/* The firmware provided ATAG/FDT address can be found in r2/x0 */
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adr x8, fw_dtb
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str x0, [x8]
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/* Returns */
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b save_boot_params_ret
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