diff options
Diffstat (limited to 'qemu/roms/u-boot/arch/arm/lib/spl.c')
| -rw-r--r-- | qemu/roms/u-boot/arch/arm/lib/spl.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/arch/arm/lib/spl.c b/qemu/roms/u-boot/arch/arm/lib/spl.c new file mode 100644 index 000000000..dfcc59681 --- /dev/null +++ b/qemu/roms/u-boot/arch/arm/lib/spl.c @@ -0,0 +1,58 @@ +/* + * (C) Copyright 2010-2012 + * Texas Instruments, <www.ti.com> + * + * Aneesh V <aneesh@ti.com> + * Tom Rini <trini@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <config.h> +#include <spl.h> +#include <image.h> +#include <linux/compiler.h> + +/* Pointer to as well as the global data structure for SPL */ +DECLARE_GLOBAL_DATA_PTR; +gd_t gdata __attribute__ ((section(".data"))); + +/* + * In the context of SPL, board_init_f must ensure that any clocks/etc for + * DDR are enabled, ensure that the stack pointer is valid, clear the BSS + * and call board_init_f. We provide this version by default but mark it + * as __weak to allow for platforms to do this in their own way if needed. + */ +void __weak board_init_f(ulong dummy) +{ + /* Clear the BSS. */ + memset(__bss_start, 0, __bss_end - __bss_start); + + /* Set global data pointer. */ + gd = &gdata; + + board_init_r(NULL, 0); +} + +/* + * This function jumps to an image with argument. Normally an FDT or ATAGS + * image. + * arg: Pointer to paramter image in RAM + */ +#ifdef CONFIG_SPL_OS_BOOT +void __noreturn jump_to_image_linux(void *arg) +{ + unsigned long machid = 0xffffffff; +#ifdef CONFIG_MACH_TYPE + machid = CONFIG_MACH_TYPE; +#endif + + debug("Entering kernel arg pointer: 0x%p\n", arg); + typedef void (*image_entry_arg_t)(int, int, void *) + __attribute__ ((noreturn)); + image_entry_arg_t image_entry = + (image_entry_arg_t) spl_image.entry_point; + cleanup_before_linux(); + image_entry(0, machid, arg); +} +#endif |