HI
thanks for this hint, i also tried this. But unfortunately without success.
But it is good to know that this way on your side works.
what i've done to try make it work:
add to my dts:
chosen {
stdout-path = &uart1;
};
&uart1 {
u-boot,dm-spl;
u-boot,dm-preloc;
status = "okay";
};
Don't you need pins muxing properties in uart1 ( pinctrl-names /
pinctrl-0 ) ?
No, pinmux is done with:
static iomux_v3_cfg_t const board_pads_spl[] = {
/* UART#1 PADS */
MUXDESC(PAD_CSI0_DAT10__UART1_TX_DATA, UART_PAD_CTRL),
MUXDESC(PAD_CSI0_DAT11__UART1_RX_DATA, UART_PAD_CTRL),
}
SETUP_IOMUX_PADS(board_pads_spl);
SPL console output is fine working once DM_SERIAL for SPL is disabled.
But with this option enabled i get no output during spl stage.
Once the full u-boot payload is loaded the console works with DM as
excpected.
In: serial@02020000
Out: serial@02020000
Err: serial@02020000
=> dm tree
Class Probed Driver Name
----------------------------------------
root [ + ] root_drive root_driver
simple_bus [ + ] generic_si |-- soc
simple_bus [ + ] generic_si | |-- aips-bus@02000000
simple_bus [ + ] generic_si | | |-- spba-bus@02000000
spi [ + ] mxc_spi | | | |-- ecspi@02008000
spi_flash [ + ] spi_flash_ | | | | `-- spi_flash@0:1
serial [ + ] serial_mxc | | | `-- serial@02020000
so the device should be present during spl stage and console should be
set to it.
# Serial drivers
#
CONFIG_BAUDRATE=115200
CONFIG_SERIAL_PRESENT=y
CONFIG_SPL_SERIAL_PRESENT=y
CONFIG_DM_SERIAL=y
CONFIG_SPL_DM_SERIAL=y
CONFIG_MXC_UART=y
maybe i'm still missing something.
cheers,
Hannes
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