Djam/arm-trusted-firmware
1
0
Fork 0
mirror of https://github.com/ARM-software/arm-trusted-firmware.git synced 2025-04-23 21:44:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

allwinner: Add BL32 (corresponds to Trusted OS) support

Browse source 
This patch is an attempt to run Trusted OS (OP-TEE OS being one of them) along
side BL31 image.

ATF supports multiple SPD's that can take dispatcher name (opteed for OP-TEE OS)
as an input using the 'SPD=<dispatcher name>' option during bl31 build.

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
This commit is contained in:
Amit Singh Tomar 2018-06-20 00:44:50 +05:30 • committed by Andre Przywara
parent d5a0491c81
commit dab901f83a
3 changed files with 31 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
docs/plat/allwinner.rst
View file

@ -27,3 +27,13 @@ To build:
make CROSS_COMPILE=aarch64-linux-gnu- PLAT=sun50i_a64 DEBUG=1 bl31
.. _U-Boot documentation: http://git.denx.de/?p=u-boot.git;f=board/sunxi/README.sunxi64;hb=HEAD
Trusted OS dispatcher
=====================
One can boot Trusted OS(OP-TEE OS, bl32 image) along side bl31 image on Allwinner A64.
In order to include the 'opteed' dispatcher in the image, pass 'SPD=opteed' on the command line
while compiling the bl31 image and make sure the loader (SPL) loads the Trusted OS binary to
the beginning of DRAM (0x40000000).

6
plat/allwinner/common/include/platform_def.h
View file

@ -42,4 +42,10 @@
#define PLATFORM_MMAP_REGIONS 4
#define PLATFORM_STACK_SIZE (0x1000 / PLATFORM_CORE_COUNT)
#ifndef SPD_none
#ifndef BL32_BASE
#define BL32_BASE SUNXI_DRAM_BASE
#endif
#endif
#endif /* __PLATFORM_DEF_H__ */

15
plat/allwinner/common/sunxi_bl31_setup.c
View file

@ -18,6 +18,7 @@
#include "sunxi_private.h"
static entry_point_info_t bl32_image_ep_info;
static entry_point_info_t bl33_image_ep_info;
static console_16550_t console;
@ -34,6 +35,13 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
console_16550_register(SUNXI_UART0_BASE, SUNXI_UART0_CLK_IN_HZ,
SUNXI_UART0_BAUDRATE, &console);
#ifdef BL32_BASE
/* Populate entry point information for BL32 */
SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0);
SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
bl32_image_ep_info.pc = BL32_BASE;
#endif
/* Populate entry point information for BL33 */
SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0);
/*
@ -72,7 +80,12 @@ void bl31_platform_setup(void)
entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
{
assert(sec_state_is_valid(type) != 0);
assert(type == NON_SECURE);
if (type == NON_SECURE)
return &bl33_image_ep_info;
if ((type == SECURE) && bl32_image_ep_info.pc)
return &bl32_image_ep_info;
return NULL;
}