diff options
author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-08-22 10:57:31 +0200 |
---|---|---|
committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-08-23 10:10:09 +0200 |
commit | 058556a5163c68e13ce165f861b895b9f6e9ac32 (patch) | |
tree | 2742d989ad5d7c042d868ac831a457a431ce25f7 /arch/arm/boards/nxp-imx8mq-evk/lowlevel.c | |
parent | 10f3061d97e610ceee0ea43cb04bb8fd0b0e96c2 (diff) | |
download | barebox-058556a5163c68e13ce165f861b895b9f6e9ac32.tar.gz barebox-058556a5163c68e13ce165f861b895b9f6e9ac32.tar.xz |
ARM: nxp-imx8mq-evk: Update comments
The comments mention contents of register r0, this is outdated. We
base our decisions on the current EL. Update the comments.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Diffstat (limited to 'arch/arm/boards/nxp-imx8mq-evk/lowlevel.c')
-rw-r--r-- | arch/arm/boards/nxp-imx8mq-evk/lowlevel.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm/boards/nxp-imx8mq-evk/lowlevel.c b/arch/arm/boards/nxp-imx8mq-evk/lowlevel.c index 46dba16ec3..9d060fb589 100644 --- a/arch/arm/boards/nxp-imx8mq-evk/lowlevel.c +++ b/arch/arm/boards/nxp-imx8mq-evk/lowlevel.c @@ -88,11 +88,9 @@ static __noreturn noinline void nxp_imx8mq_evk_start(void) setup_uart(); /* - * if register r0 does not contain 1, we are running for the first time - * and need to initialize the DRAM, install the trampoline and run TF-A - * (BL31). - * Otherwise the 1 indicates that the DRAM setup and trampoline are - * already installed and TF-A has been run. In this case we can skip + * If we are in EL3 we are running for the first time and need to + * initialize the DRAM and run TF-A (BL31). The TF-A will then jump + * to DRAM in EL2. */ if (current_el() == 3) { nxp_imx8mq_evk_sram_setup(); @@ -103,6 +101,7 @@ static __noreturn noinline void nxp_imx8mq_evk_start(void) */ memcpy((void *)MX8MQ_ATF_BL33_BASE_ADDR, _text, __bss_start - _text); imx8mq_atf_load_bl31(bl31, bl31_size); + /* not reached */ } imx8_get_boot_source(&src, &instance); |