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46e0ac55e5
Tom reports that adding more Kconfig options fails with board/raspberrypi/rpi/lowlevel_init.o: in function `save_boot_params': board/raspberrypi/rpi/lowlevel_init.S:20:(.text+0x0): relocation truncated to fit: R_AARCH64_ADR_PREL_LO21 against symbol `fw_dtb_pointer' defined in .data section in board/raspberrypi/rpi/rpi.o make: *** [Makefile:2029: u-boot] Error 1 Since fw_dtb_pointer lives in .data it might end up above the +-1MB that adr can reach. So switch over to adrp+add which has a +-4gb reach. Reported-by: Tom Rini <trini@konsulko.com> Closes: https://source.denx.de/u-boot/custodians/u-boot-raspberrypi/-/issues/2 Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
29 lines
580 B
ArmAsm
29 lines
580 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2016
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* Cédric Schieli <cschieli@gmail.com>
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*/
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#include <config.h>
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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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#ifdef CONFIG_ARM64
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adrp x8, fw_dtb_pointer
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add x8, x8, #:lo12:fw_dtb_pointer
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str x0, [x8]
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#else
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ldr r8, =fw_dtb_pointer
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str r2, [r8]
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#endif
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/* Returns */
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b save_boot_params_ret
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