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authorKarel Kočí <cynerd@email.cz>2022-11-01 09:44:59 +0100
committerKarel Kočí <cynerd@email.cz>2022-11-01 09:44:59 +0100
commit955268e13f8f9422e7e89ee6350ec793dddd1e94 (patch)
tree1714aa5f8383ddf5aaaf7826c8502f686bcd8a7a /nixos/modules/kernel-patches/0042-arc-add-OWRTDTB-section.patch
parent06293bfbb5082dc636358d49f3e6fea88c4f2a67 (diff)
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nixos: try to fix Turris Omnia PCIe on Linux 6.0
Unfortunatelly this seems to not work.
Diffstat (limited to 'nixos/modules/kernel-patches/0042-arc-add-OWRTDTB-section.patch')
-rw-r--r--nixos/modules/kernel-patches/0042-arc-add-OWRTDTB-section.patch93
1 files changed, 0 insertions, 93 deletions
diff --git a/nixos/modules/kernel-patches/0042-arc-add-OWRTDTB-section.patch b/nixos/modules/kernel-patches/0042-arc-add-OWRTDTB-section.patch
deleted file mode 100644
index 402ea47..0000000
--- a/nixos/modules/kernel-patches/0042-arc-add-OWRTDTB-section.patch
+++ /dev/null
@@ -1,93 +0,0 @@
-From ec54842bfce8240815a9ce7a1db0935851fe9ea8 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 42/96] arc add OWRTDTB section
-
-This change allows OpenWRT to patch resulting kernel binary with
-external .dtb.
-
-That allows us to re-use exactky the same vmlinux on different boards
-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 +++-
- arch/arc/kernel/vmlinux.lds.S | 13 +++++++++++++
- 3 files changed, 26 insertions(+), 1 deletion(-)
-
-diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S
-index 9152782444b5..167d81ce6ab7 100644
---- a/arch/arc/kernel/head.S
-+++ b/arch/arc/kernel/head.S
-@@ -88,6 +88,16 @@
- DSP_EARLY_INIT
- .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.
-+ .section .owrt, "aw",@progbits
-+ .ascii "OWRTDTB:"
-+ENTRY(__image_dtb)
-+ .fill 0x4000
-+END(__image_dtb)
-+
- .section .init.text, "ax",@progbits
-
- ;----------------------------------------------------------------
-diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
-index 41f07b3e594e..d0c3e7817022 100644
---- a/arch/arc/kernel/setup.c
-+++ b/arch/arc/kernel/setup.c
-@@ -495,6 +495,8 @@ static inline bool uboot_arg_invalid(unsigned long addr)
- /* We always pass 0 as magic from U-boot */
- #define UBOOT_MAGIC_VALUE 0
-
-+extern struct boot_param_header __image_dtb;
-+
- void __init handle_uboot_args(void)
- {
- bool use_embedded_dtb = true;
-@@ -533,7 +535,7 @@ void __init handle_uboot_args(void)
- ignore_uboot_args:
-
- if (use_embedded_dtb) {
-- machine_desc = setup_machine_fdt(__dtb_start);
-+ machine_desc = setup_machine_fdt(&__image_dtb);
- if (!machine_desc)
- panic("Embedded DT invalid\n");
- }
-diff --git a/arch/arc/kernel/vmlinux.lds.S b/arch/arc/kernel/vmlinux.lds.S
-index 529ae50f9fe2..ecdcd6842c0d 100644
---- a/arch/arc/kernel/vmlinux.lds.S
-+++ b/arch/arc/kernel/vmlinux.lds.S
-@@ -27,6 +27,19 @@ SECTIONS
-
- . = 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 : {
-+ *(.owrt)
-+ . = ALIGN(PAGE_SIZE);
-+ }
-+
- _int_vec_base_lds = .;
- .vector : {
- *(.vector)
---
-2.37.2
-