u-boot/arch/microblaze/cpu/spl.c
Vikas Manocha 5bf5250e9d spl: make image arg or fdt blob address reconfigurable
At present fdt blob or argument address being passed to kernel is fixed at
compile time using macro CONFIG_SYS_SPL_ARGS_ADDR. FDT blob from
different media like nand, nor flash are copied to the address pointed
by the macro.
The problem is, it makes args/fdt blob compulsory to copy which is not required
in cases like for NOR Flash. This patch removes this limitation.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-05-08 11:38:40 -04:00

52 lines
992 B
C

/*
* (C) Copyright 2013 - 2014 Xilinx, Inc
*
* Michal Simek <michal.simek@xilinx.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <image.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/u-boot.h>
DECLARE_GLOBAL_DATA_PTR;
bool boot_linux;
u32 spl_boot_device(void)
{
return BOOT_DEVICE_NOR;
}
/* Board initialization after bss clearance */
void spl_board_init(void)
{
/* enable console uart printing */
preloader_console_init();
}
#ifdef CONFIG_SPL_OS_BOOT
void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
{
debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
typedef void (*image_entry_arg_t)(char *, ulong, ulong)
__attribute__ ((noreturn));
image_entry_arg_t image_entry =
(image_entry_arg_t)spl_image->entry_point;
image_entry(NULL, 0, (ulong)spl_image->arg);
}
#endif /* CONFIG_SPL_OS_BOOT */
int spl_start_uboot(void)
{
#ifdef CONFIG_SPL_OS_BOOT
if (boot_linux)
return 0;
#endif
return 1;
}