Re: Moving ARM dts files

[Simon Horman <horms@verge.net.au>]

On Tue, Dec 04, 2018 at 12:36:49PM -0600, Rob Herring wrote:
> Olof, Arnd,
> 
> I've put together a script to move the dts files and update the 
> makefiles. It doesn't handle files not following a common prefix which 
> isn't many and some includes within the dts files will need some fixups 
> by hand.
> 
> MAINTAINERS will also need updating.
> 
> A few questions:
> 
> Do we want to move absolutely everything to subdirs? There's quite a 
> few platforms with only 1-2 platforms. I haven't added these to the 
> list yet, but can.
> 
> Do any vendors need another level of directories? davinci, omap, nspire, 
> etc. for TI for example.
> 
> What to do with armv7m.dtsi? I guess it should remain and we just fixup 
> the include. There may be a few other cross vendor things.
> 
> 
> Sub-arch maintainers, 
> 'vendor_map' below is the mapping of file prefix to new subdirectory 
> (the SoC vendor prefix). Please comment if there are any issues.
> 
> Rob
> 
> 8<-----------------------------------------------------------
> #!/usr/bin/env python3
> 
> import os
> import re
> from git import Git
> import glob
> 
> vendor_map = {
>     'imx': 'fsl',
>     'ls': 'fsl',
>     'vf': 'fsl',
>     'qcom': 'qcom',
>     'am3' : 'ti',
>     'am4' : 'ti',
>     'am5' : 'ti',
>     'da' : 'ti',
>     'dm' : 'ti',
>     'dra' : 'ti',
>     'keystone' : 'ti',
>     'omap' : 'ti',
>     'nspire' : 'ti',
>     'armada' : 'marvell',
>     'berlin' : 'marvell',
>     'dove' : 'marvell',
>     'kirkwood' : 'marvell',
>     'orion' : 'marvell',
>     'pxa' : 'marvell',
>     'mvebu' : 'marvell',
>     'mmp2' : 'marvell',
>     'arm-' : 'arm',
>     'integ' : 'arm',
>     've' : 'arm',
>     'aspeed' : 'aspeed',
>     'at91' : 'atmel',
>     'sama' : 'atmel',
>     'bcm' : 'brcm',
>     'exynos' : 'samsung',
>     's3c' : 'samsung',
>     's5p' : 'samsung',
>     'gemini' : 'cortina',
>     'hi3' : 'hisilicon',
>     'hip' : 'hisilicon',
>     'hisi' : 'hisilicon',
>     'mt' : 'mediatek',
>     'meson' : 'amlogic',
>     'owl' : 'actions',
>     'r7' : 'renesas',
>     'r8' : 'renesas',
>     'r9' : 'renesas',

The above 'r' prefixes could be a bit longer if desired.

e.g.:
      'r7s'
      'r8a'
      'r9a'

>     'rk' : 'rockchip',
>     'socfpga' : 'altera',
>     'st' : 'st',
>     'spear' : 'st',
>     'sun' : 'allwinner',
>     'tegra' : 'nvidia',
>     'zynq' : 'xilinx',
>     'wm' : 'wm',
>     'uniph' : 'socionext',
>     'zx' : 'zte',

For renesas I believe you also want:

	'emev2'
	'gr-peach'
	'iwg20d-q7'
	'sh'


> }
> 
> if __name__ == "__main__":
>     g = Git('.')
> 
>     g.checkout("HEAD", "arch/arm/boot/dts/Makefile")
>     dts_make = open("arch/arm/boot/dts/Makefile", "r").read()
> 
>     # make entries 1 line
>     make2 = re.sub(r'\\\n', '', dts_make)
> 
>     for k,v in vendor_map.items():
>         for f in glob.iglob("arch/arm/boot/dts/" + k + "*.*"):
>             new_dir = "arch/arm/boot/dts/" + v + "/"
>             base = os.path.splitext(os.path.basename(f))[0]
> 
>             os.makedirs(new_dir, exist_ok=True)
>             g.mv(f, new_dir)
> 
>             # Remove the file from the makefile
>             dts_make = re.sub('.*' + base + r'\.dtb.*\\\n', '', dts_make)
>             dts_make = re.sub('.*' + base + r'\.dtb', '', dts_make)
> 
>             # extract the matching makefile entry
>             reg = re.search(r'.*' + base + r'.*', make2)
>             if not reg:
>                 continue
> 
>             entry = reg.group(0)
>             make2 = re.sub(r'.*' + base + r'.*', '', make2)
>             if entry:
>                 makefile = open(new_dir + 'Makefile', 'a+')
>                 print(entry, file=makefile)
>                 makefile.close()
> 
> 
>     for d in sorted(glob.iglob("arch/arm/boot/dts/*/")):
>         dts_make += 'subdir-y += ' + d.split(os.path.sep)[-2] + '\n'
> 
>         # Add license and sort entries of sub-dir makefile
>         vendor_make = '# SPDX-License-Identifier: GPL-2.0\n'
>         make_lines = open(d + 'Makefile', 'r').readlines()
>         for l in sorted(make_lines):
>             vendor_make += l
> 
>         vendor_make = re.sub(r'\t', r'\\\n\t', vendor_make)
> 
>         f = open(d + 'Makefile', 'w')
>         f.write(vendor_make)
>         f.close()
>         g.add(d + 'Makefile')
> 
>     # Remove entries with no dtbs left
>     dts_make = re.sub(r'.*\+= \\\n\n', '', dts_make)
> 
>     open("arch/arm/boot/dts/Makefile", "w").write(dts_make)
>     g.add("arch/arm/boot/dts/Makefile")
> 

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