diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch b/target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch new file mode 100644 index 0000000000..744930c726 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch @@ -0,0 +1,58 @@ +From b13487a97b51a619b4e681a6091a1da9d6733058 Mon Sep 17 00:00:00 2001 +From: Jason Liu <jason.hui.liu@nxp.com> +Date: Fri, 10 Jan 2020 11:38:05 +0800 +Subject: [PATCH] LF-789-1 Revert "scripts: Makefile: Enable creation of + _symbols_ DT node for overlays" + +This reverts commit 432071b7a106060fa4e451e10249cef021af0b7c. + +commit: 432071b7a106 scripts: Makefile: Enable creation of _symbols_ DT node for overlays +changes the common Makefile and force creation of __symbols__ node on all platforms. + +This is not good and not acceptible under some cases due to this change will increase +the final DTB size a lot and bring big impact for others who does not need creation +of _symbols_ DT node for overlays.For example, on i.MX OP-TEE, the maxsize of DT is 1MB, +this patch will break some of the i.MX6/i.MX7 boards to boot with OP-TEE enabled. + +BTW, community has the similar patch but rejected. The following post discuss about this: +https://lore.kernel.org/patchwork/patch/821645/ + +For specifc plaform/board which need the creation of _symbols_ DT node for overlays, user can +define DTC_FLAGS_target either trough dtc build command line(#1) or with board specific Makefile(#2) + +For example:#1 + +make DTC_FLAGS_fsl-ls1028a-qds=-@ freescale/fsl-ls1028a-qds.dtb + +For example:#2 + +In arch/arm64/boot/dts/freescale/Makefile, + + @@ -1,4 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + +# required for overlay support + +#DTC_FLAGS_fsl-ls1028a-qds := -@ + + + +Signed-off-by: Jason Liu <jason.hui.liu@nxp.com> +Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> +Reviewed-by: Alex Marginean <alexandru.marginean@nxp.com> +Tested-by: Alex Marginean <alexandru.marginean@nxp.com> +[fix commit message] +Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> +--- + scripts/Makefile.lib | 3 --- + 1 file changed, 3 deletions(-) + +--- a/scripts/Makefile.lib ++++ b/scripts/Makefile.lib +@@ -255,9 +255,6 @@ endif + + DTC_FLAGS += $(DTC_FLAGS_$(basetarget)) + +-# Enable creation of _symbols_ node for DT overlays +-DTC_FLAGS += -@ +- + # Generate an assembly file to wrap the output of the device tree compiler + quiet_cmd_dt_S_dtb= DTB $@ + cmd_dt_S_dtb= \ |