mirror of
https://xff.cz/git/u-boot/
synced 2025-09-01 16:52:14 +02:00
ef7192e404
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>
75 lines
1.2 KiB
C
75 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2020 Broadcom.
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/system.h>
|
|
#include <asm/armv8/mmu.h>
|
|
#include <asm/arch-bcmns3/bl33_info.h>
|
|
|
|
static struct mm_region ns3_mem_map[] = {
|
|
{
|
|
.virt = 0x0UL,
|
|
.phys = 0x0UL,
|
|
.size = 0x80000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
|
|
PTE_BLOCK_NON_SHARE |
|
|
PTE_BLOCK_PXN | PTE_BLOCK_UXN
|
|
}, {
|
|
.virt = 0x80000000UL,
|
|
.phys = 0x80000000UL,
|
|
.size = 0x80000000UL,
|
|
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
|
|
PTE_BLOCK_INNER_SHARE
|
|
}, {
|
|
/* List terminator */
|
|
0,
|
|
}
|
|
};
|
|
|
|
struct mm_region *mem_map = ns3_mem_map;
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/*
|
|
* Force the bl33_info to the data-section, as .bss will not be valid
|
|
* when save_boot_params is invoked.
|
|
*/
|
|
struct bl33_info *bl33_info __section(".data");
|
|
|
|
int board_init(void)
|
|
{
|
|
if (bl33_info->version != BL33_INFO_VERSION)
|
|
printf("*** warning: ATF BL31 and U-Boot not in sync! ***\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_late_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
if (fdtdec_setup_mem_size_base() != 0)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dram_init_banksize(void)
|
|
{
|
|
fdtdec_setup_memory_banksize();
|
|
|
|
return 0;
|
|
}
|
|
|
|
void reset_cpu(ulong addr)
|
|
{
|
|
psci_system_reset();
|
|
}
|