diff options
| author | Kever Yang <kever.yang@rock-chips.com> | 2018-08-23 17:17:59 +0800 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2018-10-04 21:15:46 +0200 |
| commit | 70fe2876352939194ccd9091379453a5ddb64ddb (patch) | |
| tree | 7b471009ef30f1a5d52f0b720a9bb669f1e76d5c /common/spl | |
| parent | f00273a3a300d4f67bd4fa65cfc3da7b3e23819a (diff) | |
spl: add support to booting with OP-TEE
OP-TEE is an open source trusted OS, in armv7, its loading and
running are like this:
loading:
- SPL load both OP-TEE and U-Boot
running:
- SPL run into OP-TEE in secure mode;
- OP-TEE run into U-Boot in non-secure mode;
To make code simple, it would be fine to use IH_OS_TEE for the
os tyle in TPL(just like IH_OS_LINUX is using both in SPL and U-Boot).
Here is the diagram for SPL loading OP-TEE,
IH_OS_TEE:(make u-boot.itb for SPL)
Non-Secure Secure
BootROM
|
v
SPL
|
v
--------- OP-TEE
|
v
U-Boot
|
V
Linux
For other two king of OP-TEE loading/booting, see commit message:
45b55712d4 image: Add IH_OS_TEE for TEE chain-load boot
More detail:
https://github.com/OP-TEE/optee_os
and search for 'boot arguments' for detail entry parameter in:
core/arch/arm/kernel/generic_entry_a32.S
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Cc: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Diffstat (limited to 'common/spl')
| -rw-r--r-- | common/spl/Kconfig | 7 | ||||
| -rw-r--r-- | common/spl/Makefile | 1 | ||||
| -rw-r--r-- | common/spl/spl.c | 7 | ||||
| -rw-r--r-- | common/spl/spl_optee.S | 12 |
4 files changed, 27 insertions, 0 deletions
diff --git a/common/spl/Kconfig b/common/spl/Kconfig index 18dbc238bf..d0564621d4 100644 --- a/common/spl/Kconfig +++ b/common/spl/Kconfig @@ -832,6 +832,13 @@ config SPL_AM33XX_ENABLE_RTC32K_OSC Enable access to the AM33xx RTC and select the external 32kHz clock source. +config SPL_OPTEE + bool "Support OP-TEE Trusted OS" + depends on ARM + help + OP-TEE is an open source Trusted OS which is loaded by SPL. + More detail at: https://github.com/OP-TEE/optee_os + config TPL bool depends on SUPPORT_TPL diff --git a/common/spl/Makefile b/common/spl/Makefile index 814081feda..a130a5be4b 100644 --- a/common/spl/Makefile +++ b/common/spl/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_$(SPL_TPL_)UBI) += spl_ubi.o obj-$(CONFIG_$(SPL_TPL_)NET_SUPPORT) += spl_net.o obj-$(CONFIG_$(SPL_TPL_)MMC_SUPPORT) += spl_mmc.o obj-$(CONFIG_$(SPL_TPL_)ATF) += spl_atf.o +obj-$(CONFIG_$(SPL_TPL_)OPTEE) += spl_optee.o obj-$(CONFIG_$(SPL_TPL_)USB_SUPPORT) += spl_usb.o obj-$(CONFIG_$(SPL_TPL_)FAT_SUPPORT) += spl_fat.o obj-$(CONFIG_$(SPL_TPL_)EXT_SUPPORT) += spl_ext.o diff --git a/common/spl/spl.c b/common/spl/spl.c index 038f2b0e83..292e659c9a 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -536,6 +536,13 @@ void board_init_r(gd_t *dummy1, ulong dummy2) spl_invoke_atf(&spl_image); break; #endif +#if CONFIG_IS_ENABLED(OPTEE) + case IH_OS_TEE: + debug("Jumping to U-Boot via OP-TEE\n"); + spl_optee_entry(NULL, NULL, spl_image.fdt_addr, + (void *)spl_image.entry_point); + break; +#endif #ifdef CONFIG_SPL_OS_BOOT case IH_OS_LINUX: debug("Jumping to Linux\n"); diff --git a/common/spl/spl_optee.S b/common/spl/spl_optee.S new file mode 100644 index 0000000000..86fc398546 --- /dev/null +++ b/common/spl/spl_optee.S @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2017 Rockchip Electronic Co.,Ltd + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +ENTRY(spl_optee_entry) + ldr lr, =CONFIG_SYS_TEXT_BASE + mov pc, r3 +ENDPROC(spl_optee_entry) |