u-boot/arch/nios2/lib/bootm.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
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>
2018-05-07 09:34:12 -04:00

56 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2003, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*/
#include <common.h>
#define NIOS_MAGIC 0x534f494e /* enable command line and initrd passing */
int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
{
void (*kernel)(int, int, int, char *) = (void *)images->ep;
char *commandline = env_get("bootargs");
ulong initrd_start = images->rd_start;
ulong initrd_end = images->rd_end;
char *of_flat_tree = NULL;
#if defined(CONFIG_OF_LIBFDT)
/* did generic code already find a device tree? */
if (images->ft_len)
of_flat_tree = images->ft_addr;
#endif
if (!of_flat_tree && argc > 1)
of_flat_tree = (char *)simple_strtoul(argv[1], NULL, 16);
if (of_flat_tree)
initrd_end = (ulong)of_flat_tree;
/*
* allow the PREP bootm subcommand, it is required for bootm to work
*/
if (flag & BOOTM_STATE_OS_PREP)
return 0;
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
return 1;
/* flushes data and instruction caches before calling the kernel */
disable_interrupts();
flush_dcache_all();
debug("bootargs=%s @ 0x%lx\n", commandline, (ulong)&commandline);
debug("initrd=0x%lx-0x%lx\n", (ulong)initrd_start, (ulong)initrd_end);
/* kernel parameters passing
* r4 : NIOS magic
* r5 : initrd start
* r6 : initrd end or fdt
* r7 : kernel command line
* fdt is passed to kernel via r6, the same as initrd_end. fdt will be
* verified with fdt magic. when both initrd and fdt are used at the
* same time, fdt must follow immediately after initrd.
*/
kernel(NIOS_MAGIC, initrd_start, initrd_end, commandline);
/* does not return */
return 1;
}