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| author | Lucas Stach <l.stach@pengutronix.de> | 2020-08-11 11:43:29 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-08-17 06:36:41 +0200 |
| commit | b96cc34f9148e96e909ca9e263492fa3ce94c3a5 (patch) | |
| tree | 785340191477384143691cbe609af50a2c4d086e /arch/arm/boards | |
| parent | d478fcd6d3dd92f1847c2bdfe44dba3c4ce626be (diff) | |
| download | barebox-b96cc34f9148e96e909ca9e263492fa3ce94c3a5.tar.gz barebox-b96cc34f9148e96e909ca9e263492fa3ce94c3a5.tar.xz | |
ARM: nxp-imx8mm-evk: always set up UART
When the TF-A is configured to have some output on the UART it does not
set up the UART on its own, but just expects a pre-existing configuration.
If Barebox did not set up the UART in the !DEBUG_LL case, TF-A will just
hang without any user accessible debug output, which is a very non-obvious
failure, so better be safe and always set up the UART in case TF-A wants
to use it.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/boards')
| -rw-r--r-- | arch/arm/boards/nxp-imx8mm-evk/lowlevel.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm/boards/nxp-imx8mm-evk/lowlevel.c b/arch/arm/boards/nxp-imx8mm-evk/lowlevel.c index cd1f7d168b..082aefb8c1 100644 --- a/arch/arm/boards/nxp-imx8mm-evk/lowlevel.c +++ b/arch/arm/boards/nxp-imx8mm-evk/lowlevel.c @@ -32,9 +32,12 @@ static void setup_uart(void) imx8mm_setup_pad(IMX8MM_PAD_UART2_TXD_UART2_TX | UART_PAD_CTRL); - imx8m_uart_setup_ll(); + imx8mq_uart_setup((void *)MX8M_UART2_BASE_ADDR); - putc_ll('>'); + if (IS_ENABLED(CONFIG_DEBUG_LL)) { + imx8m_uart_setup_ll(); + putc_ll('>'); + } } static void pmic_reg_write(void *i2c, int reg, uint8_t val) @@ -157,8 +160,7 @@ static void start_atf(void) */ static __noreturn noinline void nxp_imx8mm_evk_start(void) { - if (IS_ENABLED(CONFIG_DEBUG_LL)) - setup_uart(); + setup_uart(); start_atf(); |