[PATCH] imx: dts: tbs2910: add u-boot dtsi to shrink image size

[Anatolij Gustschin]

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 at 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 at a00600;
+
+		aips-bus at 2000000 {
+			/delete-property/ ranges;
+			/delete-node/ aipstz at 207c000;
+			spba-bus at 2000000 {
+				/delete-property/ ranges;
+				/delete-node/ spba at 203c000;
+			};
+		};
+
+		aips-bus at 2100000 {
+			/delete-property/ ranges;
+			/delete-node/ aipstz at 217c000;
+			/delete-node/ mlb at 218c000;
+			/delete-node/ romcp at 21ac000;
+			/delete-node/ tzasc at 21d0000;
+			/delete-node/ tzasc at 21d4000;
+			/delete-node/ vdoa at 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/ &reg_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 at 2;
+	/delete-node/ port at 3;
+};
+
+&mipi_dsi {
+	ports {
+		/delete-node/ port at 2;
+		/delete-node/ port at 3;
+	};
+};
+
+&ipu1 {
+	u-boot,dm-pre-reloc;
+	/delete-property/ interrupts;
+	/delete-property/ clocks;
+	/delete-property/ clock-names;
+	/delete-property/ resets;
+	/delete-node/ port at 0;
+	/delete-node/ port at 1;
+
+	port at 2 {
+		/delete-node/ endpoint at 3;
+		/delete-node/ endpoint at 4;
+	};
+	port at 3 {
+		/delete-node/ endpoint at 3;
+		/delete-node/ endpoint at 4;
+	};
+};
-- 
2.17.1