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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
44 lines
1.0 KiB
ArmAsm
44 lines
1.0 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* A lowlevel_init function that sets up the stack to call a C function to
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* perform further init.
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*/
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#include <asm-offsets.h>
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#include <config.h>
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#include <linux/linkage.h>
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ENTRY(lowlevel_init)
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/*
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* Setup a temporary stack. Global data is not available yet.
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*/
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#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK)
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ldr w0, =CONFIG_SPL_STACK
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#else
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ldr w0, =CONFIG_SYS_INIT_SP_ADDR
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#endif
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bic sp, x0, #0xf /* 16-byte alignment for ABI compliance */
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/*
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* Save the old LR(passed in x29) and the current LR to stack
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*/
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stp x29, x30, [sp, #-16]!
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/*
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* Call the very early init function. This should do only the
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* absolute bare minimum to get started. It should not:
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*
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* - set up DRAM
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* - use global_data
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* - clear BSS
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* - try to start a console
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*
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* For boards with SPL this should be empty since SPL can do all of
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* this init in the SPL board_init_f() function which is called
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* immediately after this.
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*/
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bl s_init
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ldp x29, x30, [sp]
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ret
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ENDPROC(lowlevel_init)
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