diff options
Diffstat (limited to 'target/linux/generic/pending-4.19/332-arc-add-OWRTDTB-section.patch')
| -rw-r--r-- | target/linux/generic/pending-4.19/332-arc-add-OWRTDTB-section.patch | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/target/linux/generic/pending-4.19/332-arc-add-OWRTDTB-section.patch b/target/linux/generic/pending-4.19/332-arc-add-OWRTDTB-section.patch index 963547eedd..426a550d58 100644 --- a/target/linux/generic/pending-4.19/332-arc-add-OWRTDTB-section.patch +++ b/target/linux/generic/pending-4.19/332-arc-add-OWRTDTB-section.patch @@ -1,5 +1,7 @@ -From: Alexey Brodkin <abrodkin@synopsys.com> -Subject: openwrt: arc - add OWRTDTB section +From 34ef04f3845ed2b47d57dd9d3b795b16e1f8185a Mon Sep 17 00:00:00 2001 +From: Evgeniy Didin <Evgeniy.Didin@synopsys.com> +Date: Fri, 15 Mar 2019 18:53:38 +0300 +Subject: [PATCH] arc add OWRTDTB section This change allows OpenWRT to patch resulting kernel binary with external .dtb. @@ -10,7 +12,9 @@ given its ARC core configurations match (at least cache line sizes etc). ""patch-dtb" searches for ASCII "OWRTDTB:" strign and copies external .dtb right after it, keeping the string in place. +Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> +Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com> --- arch/arc/kernel/head.S | 10 ++++++++++ arch/arc/kernel/setup.c | 4 +++- @@ -23,14 +27,14 @@ Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> 1: .endm -+; Here "patch-dtb" will embed external .dtb -+; Note "patch-dtb" searches for ASCII "OWRTDTB:" string -+; and pastes .dtb right after it, hense the string precedes -+; __image_dtb symbol. ++ ; Here "patch-dtb" will embed external .dtb ++ ; Note "patch-dtb" searches for ASCII "OWRTDTB:" string ++ ; and pastes .dtb right after it, hense the string precedes ++ ; __image_dtb symbol. + .section .owrt, "aw",@progbits -+ .ascii "OWRTDTB:" ++ .ascii "OWRTDTB:" +ENTRY(__image_dtb) -+ .fill 0x4000 ++ .fill 0x4000 +END(__image_dtb) + .section .init.text, "ax",@progbits @@ -63,16 +67,16 @@ Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> . = CONFIG_LINUX_LINK_BASE; + /* -+ * In OpenWRT we want to patch built binary embedding .dtb of choice. -+ * This is implemented with "patch-dtb" utility which searches for -+ * "OWRTDTB:" string in first 16k of image and if it is found -+ * copies .dtb right after mentioned string. -+ * -+ * Note: "OWRTDTB:" won't be overwritten with .dtb, .dtb will follow it. -+ */ -+ .owrt : { ++ * In OpenWRT we want to patch built binary embedding .dtb of choice. ++ * This is implemented with "patch-dtb" utility which searches for ++ * "OWRTDTB:" string in first 16k of image and if it is found ++ * copies .dtb right after mentioned string. ++ * ++ * Note: "OWRTDTB:" won't be overwritten with .dtb, .dtb will follow it. ++ */ ++ .owrt : { + *(.owrt) -+ . = ALIGN(PAGE_SIZE); ++ . = ALIGN(PAGE_SIZE); + } + _int_vec_base_lds = .; |