linux: add support for version 4.3

5 files changed, 130 insertions, 0 deletions

diff --git a/target/config/Config.in.kernelversion b/target/config/Config.in.kernelversion
index 09a83e670..5888aa34d 100644
--- a/target/config/Config.in.kernelversion
+++ b/target/config/Config.in.kernelversion
@@ -12,6 +12,10 @@ default ADK_TARGET_KERNEL_VERSION_4_1_10
 config ADK_TARGET_KERNEL_VERSION_GIT
 	bool "linux-git"
 
+config ADK_TARGET_KERNEL_VERSION_4_3_0
+	bool "4.3"
+	select ADK_TARGET_KERNEL_VERSION_4_3
+
 config ADK_TARGET_KERNEL_VERSION_4_2_5
 	bool "4.2.5"
 	select ADK_TARGET_KERNEL_VERSION_4_2
@@ -134,6 +138,9 @@ config ADK_TARGET_KERNEL_HASH
 	help
 	  GIT hash to use.
 
+config ADK_TARGET_KERNEL_VERSION_4_3
+	bool
+
 config ADK_TARGET_KERNEL_VERSION_4_2
 	bool
 
diff --git a/target/linux/patches/4.3/cris-header.patch b/target/linux/patches/4.3/cris-header.patch
new file mode 100644
index 000000000..2b5a88461
--- /dev/null
+++ b/target/linux/patches/4.3/cris-header.patch
@@ -0,0 +1,12 @@
+diff -Nur linux-3.16.2.orig/arch/cris/include/arch-v10/arch/Kbuild linux-3.16.2/arch/cris/include/arch-v10/arch/Kbuild
+--- linux-3.16.2.orig/arch/cris/include/arch-v10/arch/Kbuild	2014-09-06 01:37:11.000000000 +0200
++++ linux-3.16.2/arch/cris/include/arch-v10/arch/Kbuild	2014-09-26 19:24:50.000000000 +0200
+@@ -1 +1,2 @@
+ # CRISv10 arch
++header-y += ptrace.h
+diff -Nur linux-3.16.2.orig/arch/cris/include/arch-v32/arch/Kbuild linux-3.16.2/arch/cris/include/arch-v32/arch/Kbuild
+--- linux-3.16.2.orig/arch/cris/include/arch-v32/arch/Kbuild	2014-09-06 01:37:11.000000000 +0200
++++ linux-3.16.2/arch/cris/include/arch-v32/arch/Kbuild	2014-09-26 19:24:31.000000000 +0200
+@@ -1 +1,2 @@
+ # CRISv32 arch
++header-y += ptrace.h
diff --git a/target/linux/patches/4.3/initramfs-nosizelimit.patch b/target/linux/patches/4.3/initramfs-nosizelimit.patch
new file mode 100644
index 000000000..40d2f6bd8
--- /dev/null
+++ b/target/linux/patches/4.3/initramfs-nosizelimit.patch
@@ -0,0 +1,57 @@
+From 9a18df7a71bfa620b1278777d64783a359d7eb4e Mon Sep 17 00:00:00 2001
+From: Thorsten Glaser <tg@mirbsd.org>
+Date: Sun, 4 May 2014 01:37:54 +0200
+Subject: [PATCH] mount tmpfs-as-rootfs (initramfs) with -o
+ nr_blocks=0,nr_inodes=0
+
+I would have preferred to write this patch to be able to pass
+rootflags=nr_blocks=0,nr_inodes=0 on the kernel command line,
+and then hand these rootflags over to the initramfs (tmpfs)
+mount in the same way the kernel hands them over to the block
+device rootfs mount. But at least the Debian/m68k initrd also
+parses $rootflags from the environment and adds it to the call
+to the user-space mount for the eventual root device, which
+would make the kernel command line rootflags option be used in
+both places (tmpfs and e.g. ext4) which is guaranteed to error
+out in at least one of them.
+
+This change is intended to aid people in a setup where the
+initrd is the final root filesystem, i.e. not mounted over.
+This is especially useful in automated tests running on qemu
+for boards with constrained memory (e.g. 64 MiB on sh4).
+
+Considering that the initramfs is normally emptied out then
+overmounted, this change is probably safe for setups where
+initramfs just hosts early userspace, too, since the tmpfs
+backing it is not accessible any more later on, AFAICT.
+
+Signed-off-by: Thorsten Glaser <tg@mirbsd.org>
+---
+ init/do_mounts.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/init/do_mounts.c b/init/do_mounts.c
+index 82f2288..55a4cfe 100644
+--- a/init/do_mounts.c
++++ b/init/do_mounts.c
+@@ -594,6 +594,7 @@ out:
+ }
+ 
+ static bool is_tmpfs;
++static char tmpfs_rootflags[] = "nr_blocks=0,nr_inodes=0";
+ static struct dentry *rootfs_mount(struct file_system_type *fs_type,
+ 	int flags, const char *dev_name, void *data)
+ {
+@@ -606,6 +607,9 @@ static struct dentry *rootfs_mount(struct file_system_type *fs_type,
+ 	if (IS_ENABLED(CONFIG_TMPFS) && is_tmpfs)
+ 		fill = shmem_fill_super;
+ 
++	if (is_tmpfs)
++		data = tmpfs_rootflags;
++
+ 	return mount_nodev(fs_type, flags, data, fill);
+ }
+ 
+-- 
+2.0.0.rc0
+
diff --git a/target/linux/patches/4.3/regmap-default-on.patch b/target/linux/patches/4.3/regmap-default-on.patch
new file mode 100644
index 000000000..8d72224bf
--- /dev/null
+++ b/target/linux/patches/4.3/regmap-default-on.patch
@@ -0,0 +1,17 @@
+diff -Nur linux-4.1.6.orig/drivers/base/regmap/Kconfig linux-4.1.6/drivers/base/regmap/Kconfig
+--- linux-4.1.6.orig/drivers/base/regmap/Kconfig	2015-08-17 05:52:51.000000000 +0200
++++ linux-4.1.6/drivers/base/regmap/Kconfig	2015-08-29 22:18:50.329683337 +0200
+@@ -3,7 +3,7 @@
+ # subsystems should select the appropriate symbols.
+ 
+ config REGMAP
+-	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
++	default y
+ 	select LZO_COMPRESS
+ 	select LZO_DECOMPRESS
+ 	select IRQ_DOMAIN if REGMAP_IRQ
+@@ -29,3 +29,4 @@
+ 
+ config REGMAP_IRQ
+ 	bool
++	default y
diff --git a/target/linux/patches/4.3/startup.patch b/target/linux/patches/4.3/startup.patch
new file mode 100644
index 000000000..d396b75e4
--- /dev/null
+++ b/target/linux/patches/4.3/startup.patch
@@ -0,0 +1,37 @@
+diff -Nur linux-3.13.3.orig/init/main.c linux-3.13.3/init/main.c
+--- linux-3.13.3.orig/init/main.c	2014-02-13 23:00:14.000000000 +0100
++++ linux-3.13.3/init/main.c	2014-02-17 11:35:14.000000000 +0100
+@@ -916,6 +917,8 @@
+ 	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
+ 		pr_err("Warning: unable to open an initial console.\n");
+ 
++	printk(KERN_WARNING "Starting Linux (built with OpenADK).\n");
++
+ 	(void) sys_dup(0);
+ 	(void) sys_dup(0);
+ 	/*
+diff -Nur linux-3.13.6.orig/init/initramfs.c linux-3.13.6/init/initramfs.c
+--- linux-3.13.6.orig/init/initramfs.c	2014-03-07 07:07:02.000000000 +0100
++++ linux-3.13.6/init/initramfs.c	2014-03-15 12:11:31.882731916 +0100
+@@ -622,6 +622,9 @@
+ 		 */
+ 		load_default_modules();
+ 	}
++#ifdef CONFIG_DEVTMPFS_MOUNT
++	devtmpfs_mount("dev");
++#endif
+ 	return 0;
+ }
+ rootfs_initcall(populate_rootfs);
+diff -Nur linux-3.13.6.orig/init/main.c linux-3.13.6/init/main.c
+--- linux-3.13.6.orig/init/main.c	2014-03-07 07:07:02.000000000 +0100
++++ linux-3.13.6/init/main.c	2014-03-15 12:13:16.459024452 +0100
+@@ -924,7 +924,7 @@
+ 	 */
+ 
+ 	if (!ramdisk_execute_command)
+-		ramdisk_execute_command = "/init";
++		ramdisk_execute_command = "/sbin/init";
+ 
+ 	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
+ 		ramdisk_execute_command = NULL;