diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0089-scripts-Multi-platform-support-for-mkknlimg-and-knli.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.4/0089-scripts-Multi-platform-support-for-mkknlimg-and-knli.patch | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0089-scripts-Multi-platform-support-for-mkknlimg-and-knli.patch b/target/linux/brcm2708/patches-4.4/0089-scripts-Multi-platform-support-for-mkknlimg-and-knli.patch new file mode 100644 index 0000000000..a551dce5a4 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0089-scripts-Multi-platform-support-for-mkknlimg-and-knli.patch @@ -0,0 +1,247 @@ +From 5e591b39b106e20e3f8128cbd46a20d01eedb185 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Wed, 11 Nov 2015 11:38:59 +0000 +Subject: [PATCH 089/381] scripts: Multi-platform support for mkknlimg and + knlinfo + +The firmware uses tags in the kernel trailer to choose which dtb file +to load. Current firmware loads bcm2835-*.dtb if the '283x' tag is true, +otherwise it loads bcm270*.dtb. This scheme breaks if an image supports +multiple platforms. + +This patch adds '270X' and '283X' tags to indicate support for RPi and +upstream platforms, respectively. '283x' (note lower case 'x') is left +for old firmware, and is only set if the image only supports upstream +builds. +--- + scripts/knlinfo | 2 + + scripts/mkknlimg | 136 +++++++++++++++++++++++++++++++------------------------ + 2 files changed, 80 insertions(+), 58 deletions(-) + +--- a/scripts/knlinfo ++++ b/scripts/knlinfo +@@ -18,6 +18,8 @@ my %atom_formats = + ( + 'DTOK' => \&format_bool, + 'KVer' => \&format_string, ++ '270X' => \&format_bool, ++ '283X' => \&format_bool, + '283x' => \&format_bool, + ); + +--- a/scripts/mkknlimg ++++ b/scripts/mkknlimg +@@ -13,12 +13,20 @@ use strict; + use warnings; + use integer; + ++use constant FLAG_PI => 0x01; ++use constant FLAG_DTOK => 0x02; ++use constant FLAG_DDTK => 0x04; ++use constant FLAG_270X => 0x08; ++use constant FLAG_283X => 0x10; ++ + my $trailer_magic = 'RPTL'; + + my $tmpfile1 = "/tmp/mkknlimg_$$.1"; + my $tmpfile2 = "/tmp/mkknlimg_$$.2"; + + my $dtok = 0; ++my $ddtk = 0; ++my $is_270x = 0; + my $is_283x = 0; + + while (@ARGV && ($ARGV[0] =~ /^-/)) +@@ -28,6 +36,14 @@ while (@ARGV && ($ARGV[0] =~ /^-/)) + { + $dtok = 1; + } ++ elsif ($arg eq '--ddtk') ++ { ++ $ddtk = 1; ++ } ++ elsif ($arg eq '--270x') ++ { ++ $is_270x = 1; ++ } + elsif ($arg eq '--283x') + { + $is_283x = 1; +@@ -50,30 +66,33 @@ if (! -r $kernel_file) + usage(); + } + +-my @wanted_strings = +-( +- 'bcm2708_fb', +- 'brcm,bcm2835-mmc', +- 'brcm,bcm2835-sdhost', +- 'brcm,bcm2708-pinctrl', +- 'brcm,bcm2835-gpio', +- 'brcm,bcm2835', +- 'brcm,bcm2836' +-); ++my $wanted_strings = ++{ ++ 'bcm2708_fb' => FLAG_PI, ++ 'brcm,bcm2835-mmc' => FLAG_PI, ++ 'brcm,bcm2835-sdhost' => FLAG_PI, ++ 'brcm,bcm2708-pinctrl' => FLAG_PI | FLAG_DTOK, ++ 'brcm,bcm2835-gpio' => FLAG_PI | FLAG_DTOK, ++ 'brcm,bcm2708' => FLAG_PI | FLAG_DTOK | FLAG_270X, ++ 'brcm,bcm2709' => FLAG_PI | FLAG_DTOK | FLAG_270X, ++ 'brcm,bcm2835' => FLAG_PI | FLAG_DTOK | FLAG_283X, ++ 'brcm,bcm2836' => FLAG_PI | FLAG_DTOK | FLAG_283X, ++ 'of_overlay_apply' => FLAG_DTOK | FLAG_DDTK, ++}; + + my $res = try_extract($kernel_file, $tmpfile1); +-$res = try_decompress('\037\213\010', 'xy', 'gunzip', 0, +- $kernel_file, $tmpfile1, $tmpfile2) if (!$res); +-$res = try_decompress('\3757zXZ\000', 'abcde', 'unxz --single-stream', -1, +- $kernel_file, $tmpfile1, $tmpfile2) if (!$res); +-$res = try_decompress('BZh', 'xy', 'bunzip2', 0, +- $kernel_file, $tmpfile1, $tmpfile2) if (!$res); +-$res = try_decompress('\135\0\0\0', 'xxx', 'unlzma', 0, +- $kernel_file, $tmpfile1, $tmpfile2) if (!$res); +-$res = try_decompress('\211\114\132', 'xy', 'lzop -d', 0, +- $kernel_file, $tmpfile1, $tmpfile2) if (!$res); +-$res = try_decompress('\002\041\114\030', 'xy', 'lz4 -d', 1, +- $kernel_file, $tmpfile1, $tmpfile2) if (!$res); ++$res ||= try_decompress('\037\213\010', 'xy', 'gunzip', 0, ++ $kernel_file, $tmpfile1, $tmpfile2); ++$res ||= try_decompress('\3757zXZ\000', 'abcde', 'unxz --single-stream', -1, ++ $kernel_file, $tmpfile1, $tmpfile2); ++$res ||= try_decompress('BZh', 'xy', 'bunzip2', 0, ++ $kernel_file, $tmpfile1, $tmpfile2); ++$res ||= try_decompress('\135\0\0\0', 'xxx', 'unlzma', 0, ++ $kernel_file, $tmpfile1, $tmpfile2); ++$res ||= try_decompress('\211\114\132', 'xy', 'lzop -d', 0, ++ $kernel_file, $tmpfile1, $tmpfile2); ++$res ||= try_decompress('\002\041\114\030', 'xy', 'lz4 -d', 1, ++ $kernel_file, $tmpfile1, $tmpfile2); + + my $append_trailer; + my $trailer; +@@ -83,27 +102,21 @@ $append_trailer = $dtok; + + if ($res) + { +- $kver = $res->{''} || '?'; ++ $kver = $res->{'kver'} || '?'; ++ my $flags = $res->{'flags'}; + print("Version: $kver\n"); + +- $append_trailer = $dtok; +- if (!$dtok) ++ if ($flags & FLAG_PI) + { +- if (config_bool($res, 'bcm2708_fb') || +- config_bool($res, 'brcm,bcm2835-mmc') || +- config_bool($res, 'brcm,bcm2835-sdhost')) +- { +- $dtok ||= config_bool($res, 'brcm,bcm2708-pinctrl'); +- $dtok ||= config_bool($res, 'brcm,bcm2835-gpio'); +- $is_283x ||= config_bool($res, 'brcm,bcm2835'); +- $is_283x ||= config_bool($res, 'brcm,bcm2836'); +- $dtok ||= $is_283x; +- $append_trailer = 1; +- } +- else +- { +- print ("* This doesn't look like a Raspberry Pi kernel. In pass-through mode.\n"); +- } ++ $append_trailer = 1; ++ $dtok ||= ($flags & FLAG_DTOK) != 0; ++ $is_270x ||= ($flags & FLAG_270X) != 0; ++ $is_283x ||= ($flags & FLAG_283X) != 0; ++ $ddtk ||= ($flags & FLAG_DDTK) != 0; ++ } ++ else ++ { ++ print ("* This doesn't look like a Raspberry Pi kernel. In pass-through mode.\n"); + } + } + elsif (!$dtok) +@@ -114,6 +127,8 @@ elsif (!$dtok) + if ($append_trailer) + { + printf("DT: %s\n", $dtok ? "y" : "n"); ++ printf("DDT: %s\n", $ddtk ? "y" : "n") if ($ddtk); ++ printf("270x: %s\n", $is_270x ? "y" : "n"); + printf("283x: %s\n", $is_283x ? "y" : "n"); + + my @atoms; +@@ -121,7 +136,10 @@ if ($append_trailer) + push @atoms, [ $trailer_magic, pack('V', 0) ]; + push @atoms, [ 'KVer', $kver ]; + push @atoms, [ 'DTOK', pack('V', $dtok) ]; +- push @atoms, [ '283x', pack('V', $is_283x) ]; ++ push @atoms, [ 'DDTK', pack('V', $ddtk) ] if ($ddtk); ++ push @atoms, [ '270X', pack('V', $is_270x) ]; ++ push @atoms, [ '283X', pack('V', $is_283x) ]; ++ push @atoms, [ '283x', pack('V', $is_283x && !$is_270x) ]; + + $trailer = pack_trailer(\@atoms); + $atoms[0]->[1] = pack('V', length($trailer)); +@@ -175,7 +193,7 @@ END { + + sub usage + { +- print ("Usage: mkknlimg [--dtok] [--283x] <vmlinux|zImage|bzImage> <outfile>\n"); ++ print ("Usage: mkknlimg [--dtok] [--270x] [--283x] <vmlinux|zImage|bzImage> <outfile>\n"); + exit(1); + } + +@@ -189,15 +207,8 @@ sub try_extract + + chomp($ver); + +- my $res = { ''=>$ver }; +- my $string_pattern = '^('.join('|', @wanted_strings).')$'; +- +- my @matches = `strings \"$knl\" | grep -E \"$string_pattern\"`; +- foreach my $match (@matches) +- { +- chomp($match); +- $res->{$match} = 1; +- } ++ my $res = { 'kver'=>$ver }; ++ $res->{'flags'} = strings_to_flags($knl, $wanted_strings); + + return $res; + } +@@ -224,6 +235,22 @@ sub try_decompress + return undef; + } + ++sub strings_to_flags ++{ ++ my ($knl, $strings) = @_; ++ my $string_pattern = '^('.join('|', keys(%$strings)).')$'; ++ my $flags = 0; ++ ++ my @matches = `strings \"$knl\" | grep -E \"$string_pattern\"`; ++ foreach my $match (@matches) ++ { ++ chomp($match); ++ $flags |= $strings->{$match}; ++ } ++ ++ return $flags; ++} ++ + sub pack_trailer + { + my ($atoms) = @_; +@@ -235,10 +262,3 @@ sub pack_trailer + } + return $trailer; + } +- +-sub config_bool +-{ +- my ($configs, $wanted) = @_; +- my $val = $configs->{$wanted} || 'n'; +- return (($val eq 'y') || ($val eq '1')); +-} |