u-boot/arch/arm/include/asm/arch-bcmns3/bl33_info.h
Abhishek Shah ef7192e404 board: ns3: add api to save boot parameters passed from BL31
Add API to save boot parameters passed from BL31

Use assembly implementation of save_boot_params instead of c function.
Because generally ATF does not set up SP_EL2 on exiting.
Thus, usage of a C function immediately after exiting with no stack
setup done by ATF explicitly, may cause SP_EL2 to be not sane,
which in turn causes a crash if this boot was not lucky to get
an SP_EL2 in valid range. Replace C implementation with assembly one
which does not use stack this early, and let u-boot to set up its stack
later.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Signed-off-by: Rajesh Ravi <rajesh.ravi@broadcom.com>
Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-29 10:13:41 -04:00

26 lines
413 B
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2020 Broadcom.
*
*/
#ifndef BL33_INFO_H
#define BL33_INFO_H
#include <asm/io.h>
/* Increase version number each time this file is modified */
#define BL33_INFO_VERSION 1
struct chip_info {
unsigned int chip_id;
unsigned int rev_id;
};
struct bl33_info {
unsigned int version;
struct chip_info chip;
};
extern struct bl33_info *bl33_info;
#endif