Use U-Boot specific board dtsi to remove some not used nodes and properties. With this change applied considerable size reduction has been observed:
$ ./tools/buildman/buildman -b tbs2910 -f tbs2910 || \ ./tools/buildman/buildman -b tbs2910 -sS tbs2910 ... Summary of 2 commits for 1 boards (1 thread, 12 jobs per thread) 01: Merge branch '2019-12-05-master-imports' arm: w+ tbs2910 02: imx: dts: tbs2910: add u-boot dtsi to shrink image size arm: (for 1/1 boards) all -24448.0 text -24448.0
Signed-off-by: Anatolij Gustschin agust@denx.de --- This patch was only build-tested, maybe this removes to much and needs some tweaking. I'd appreciate if someone could test it on actual hardware and finish the work, so we hopefully can solve frequent CI build breakage caused by this target.
arch/arm/dts/imx6q-tbs2910-u-boot.dtsi | 219 +++++++++++++++++++++++++ 1 file changed, 219 insertions(+) create mode 100644 arch/arm/dts/imx6q-tbs2910-u-boot.dtsi
diff --git a/arch/arm/dts/imx6q-tbs2910-u-boot.dtsi b/arch/arm/dts/imx6q-tbs2910-u-boot.dtsi new file mode 100644 index 0000000000..3e9307f17f --- /dev/null +++ b/arch/arm/dts/imx6q-tbs2910-u-boot.dtsi @@ -0,0 +1,219 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * U-Boot specific modifications for original tbs2910 DTS. + * This drops not used nodes/properties to reduce the image size. + */ + +/ { + /delete-property/ model; + /delete-property/ compatible; + + aliases { + /delete-property/ can0; + /delete-property/ can1; + /delete-property/ gpio3; + /delete-property/ gpio4; + /delete-property/ gpio5; + /delete-property/ ipu1; + /delete-property/ mmc3; + /delete-property/ spi0; + /delete-property/ spi1; + /delete-property/ spi2; + /delete-property/ spi3; + /delete-property/ spi4; + /delete-property/ serial2; + /delete-property/ serial3; + /delete-property/ serial4; + /delete-property/ video1; + }; + + /delete-node/ cpus; + /delete-node/ capture-subsystem; + /delete-node/ chosen; + /delete-node/ display-subsystem; + /delete-node/ fan; + /delete-node/ ir_recv; + /delete-node/ leds; + /delete-node/ memory; + /delete-node/ sound-sgtl5000; + /delete-node/ sound-spdif; + + soc { + u-boot,dm-pre-reloc; + /delete-property/ ranges; + /delete-node/ timer@a00600; + + aips-bus@2000000 { + /delete-property/ ranges; + /delete-node/ aipstz@207c000; + spba-bus@2000000 { + /delete-property/ ranges; + /delete-node/ spba@203c000; + }; + }; + + aips-bus@2100000 { + /delete-property/ ranges; + /delete-node/ aipstz@217c000; + /delete-node/ mlb@218c000; + /delete-node/ romcp@21ac000; + /delete-node/ tzasc@21d0000; + /delete-node/ tzasc@21d4000; + /delete-node/ vdoa@21e4000; + }; + }; +}; + +&anatop { + /delete-node/ regulator-1p1; + /delete-node/ regulator-2p5; + /delete-node/ regulator-3p0; + /delete-node/ regulator-vddcore; + /delete-node/ regulator-vddpu; + /delete-node/ regulator-vddsoc; +}; + +&sata { + /delete-property/ clocks; + /delete-property/ clock-names; + /delete-property/ interrupts; + /delete-property/ interrupts; + /delete-property/ fsl,transmit-level-mV; + /delete-property/ fsl,transmit-boost-mdB; + /delete-property/ fsl,transmit-atten-16ths; + /delete-property/ fsl,receive-eq-mdB; +}; + +&pcie { + /delete-property/ reg-names; + /delete-property/ device_type; + /delete-property/ bus-range; + /delete-property/ ranges; + /delete-property/ num-lanes; + /delete-property/ interrupts; + /delete-property/ interrupt-names; + /delete-property/ #interrupt-cells; + /delete-property/ interrupt-map-mask; + /delete-property/ interrupt-map; + /delete-property/ clocks; + /delete-property/ clock-names; +}; + +&uart1 { + /delete-property/ interrupts; + /delete-property/ clocks; + /delete-property/ clock-names; + /delete-property/ dmas; + /delete-property/ dma-names; +}; + +&uart2 { + /delete-property/ interrupts; + /delete-property/ clocks; + /delete-property/ clock-names; + /delete-property/ dmas; + /delete-property/ dma-names; +}; + +/delete-node/ &L2; +/delete-node/ &asrc; +/delete-node/ &audmux; +/delete-node/ &can1; +/delete-node/ &can2; +/delete-node/ &crypto; +/delete-node/ &dcic1; +/delete-node/ &dcic2; +/delete-node/ &dma_apbh; +/delete-node/ &ecspi1; +/delete-node/ &ecspi2; +/delete-node/ &ecspi3; +/delete-node/ &ecspi4; +/delete-node/ &ecspi5; +/delete-node/ &epit1; +/delete-node/ &epit2; +/delete-node/ &esai; +/delete-node/ &gpt; +/delete-node/ &gpio4; +/delete-node/ &gpio5; +/delete-node/ &gpio6; +/delete-node/ &gpu_3d; +/delete-node/ &gpu_2d; +/delete-node/ &gpu_vg; +/delete-node/ &gpmi; +/delete-node/ &ipu2; +/delete-node/ &kpp; +/delete-node/ &ldb; +/delete-node/ &mipi_csi; +/delete-node/ &mmdc0; +/delete-node/ &mmdc1; +/delete-node/ &ocotp; +/delete-node/ &ocram; +/delete-node/ &pinctrl_gpio_fan; +/delete-node/ &pinctrl_ir; +/delete-node/ &pinctrl_gpio_leds; +/delete-node/ &pinctrl_sgtl5000; +/delete-node/ &pinctrl_spdif; +/delete-node/ &pmu; +/delete-node/ &pwm1; +/delete-node/ &pwm2; +/delete-node/ &pwm3; +/delete-node/ &pwm4; +/delete-node/ &sdma; +/delete-node/ ®_2p5v; +/delete-node/ &sgtl5000; +/delete-node/ &snvs; +/delete-node/ &spdif; +/delete-node/ &src; +/delete-node/ &ssi1; +/delete-node/ &ssi2; +/delete-node/ &ssi3; +/delete-node/ &tempmon; +/delete-node/ &uart3; +/delete-node/ &uart4; +/delete-node/ &uart5; +/delete-node/ &usbh2; +/delete-node/ &usbh3; +/delete-node/ &usdhc1; +/delete-node/ &vpu; +/delete-node/ &wdog2; +/delete-node/ &weim; + +&gpr { + /delete-node/ ipu1_csi0_mux; + /delete-node/ ipu2_csi1_mux; +}; + +&gpc { + /delete-node/ pgc; +}; + +&hdmi { + /delete-node/ port@2; + /delete-node/ port@3; +}; + +&mipi_dsi { + ports { + /delete-node/ port@2; + /delete-node/ port@3; + }; +}; + +&ipu1 { + u-boot,dm-pre-reloc; + /delete-property/ interrupts; + /delete-property/ clocks; + /delete-property/ clock-names; + /delete-property/ resets; + /delete-node/ port@0; + /delete-node/ port@1; + + port@2 { + /delete-node/ endpoint@3; + /delete-node/ endpoint@4; + }; + port@3 { + /delete-node/ endpoint@3; + /delete-node/ endpoint@4; + }; +};