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https://github.com/brain-hackers/u-boot-brain
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ec101fdb8d
With device trees, boards do not always set CONFIG_MACH_TYPE now, so we must not rely on this define being set. The kernel uses ~0 to see if we have a valid machine number or not, so set that as the default, invalid machine, id and only fix if CONFIG_MACH_TYPE is set. Acked-by: Dan Murphy <dmurphy@ti.com> Tested-by: Heiko Schocher <hs@denx.de> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Signed-off-by: Tom Rini <trini@ti.com>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
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* (C) Copyright 2010-2012
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* Texas Instruments, <www.ti.com>
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*
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* Aneesh V <aneesh@ti.com>
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* Tom Rini <trini@ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <config.h>
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#include <spl.h>
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#include <image.h>
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#include <linux/compiler.h>
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/* Pointer to as well as the global data structure for SPL */
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DECLARE_GLOBAL_DATA_PTR;
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gd_t gdata __attribute__ ((section(".data")));
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/*
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* In the context of SPL, board_init_f must ensure that any clocks/etc for
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* DDR are enabled, ensure that the stack pointer is valid, clear the BSS
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* and call board_init_f. We provide this version by default but mark it
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* as __weak to allow for platforms to do this in their own way if needed.
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*/
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void __weak board_init_f(ulong dummy)
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{
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/* Set the stack pointer. */
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asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK));
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/* Clear the BSS. */
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memset(__bss_start, 0, __bss_end - __bss_start);
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/* Set global data pointer. */
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gd = &gdata;
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board_init_r(NULL, 0);
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}
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/*
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* This function jumps to an image with argument. Normally an FDT or ATAGS
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* image.
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* arg: Pointer to paramter image in RAM
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*/
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#ifdef CONFIG_SPL_OS_BOOT
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void __noreturn jump_to_image_linux(void *arg)
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{
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unsigned long machid = 0xffffffff;
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#ifdef CONFIG_MACH_TYPE
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machid = CONFIG_MACH_TYPE;
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#endif
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debug("Entering kernel arg pointer: 0x%p\n", arg);
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typedef void (*image_entry_arg_t)(int, int, void *)
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__attribute__ ((noreturn));
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image_entry_arg_t image_entry =
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(image_entry_arg_t) spl_image.entry_point;
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cleanup_before_linux();
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image_entry(0, machid, arg);
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}
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#endif
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