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rockchip: rk3308: Skip serial pinctrl at pre-reloc phase

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UART pinctrl for serial is typically applied multiple times:
- in external TPL
- in SPL using pinctrl from DT
- in pre-reloc phase using pinctrl from DT
- after relocation using pinctrl from DT

Skip including UART pinctrl for the the pre-reloc phase to save time
during boot. On a Radxa ROCK Pi S this reduce boot time by ~80 ms.

After this a warning may be shown with LOGLEVEL=5 (or higher), it is
safe to ignore this warning as device probe is successful even when
pinctrl cannot be applied:

  ns16550_serial serial@ff0a0000: pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
This commit is contained in:
Jonas Karlman
2024-08-04 20:27:17 +00:00
committed by Ondrej Jirman
parent 17fce0e52f
commit 04339be206
4 changed files with 8 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/dts/rk3308-evb-u-boot.dtsi
View File

@@ -10,5 +10,6 @@
}; };
&uart4_xfer { &uart4_xfer {
bootph-all; bootph-pre-sram;
bootph-pre-ram;
}; };

3
arch/arm/dts/rk3308-roc-cc-u-boot.dtsi
View File

@@ -29,7 +29,8 @@
}; };
&uart2m0_xfer { &uart2m0_xfer {
bootph-all; bootph-pre-sram;
bootph-pre-ram;
}; };
&vcc_sd { &vcc_sd {

3
arch/arm/dts/rk3308-rock-pi-s-u-boot.dtsi
View File

@@ -14,7 +14,8 @@
}; };
&uart0_xfer { &uart0_xfer {
bootph-all; bootph-pre-sram;
bootph-pre-ram;
}; };
&vcc5v0_otg { &vcc5v0_otg {

3
arch/arm/dts/rk3308-rock-s0-u-boot.dtsi
View File

@@ -13,7 +13,8 @@
}; };
&uart0_xfer { &uart0_xfer {
bootph-all; bootph-pre-sram;
bootph-pre-ram;
}; };
&vdd_core { &vdd_core {