License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2013-06-03 22:12:24 +08:00
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/*
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* This header provides constants specific to AM33XX pinctrl bindings.
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*/
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2013-06-11 22:50:50 +08:00
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#ifndef _DT_BINDINGS_PINCTRL_AM33XX_H
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#define _DT_BINDINGS_PINCTRL_AM33XX_H
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2013-07-03 16:44:50 +08:00
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#include <dt-bindings/pinctrl/omap.h>
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2013-06-03 22:12:24 +08:00
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/* am33xx specific mux bit defines */
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#undef PULL_ENA
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#undef INPUT_EN
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#define PULL_DISABLE (1 << 3)
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#define INPUT_EN (1 << 5)
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2015-02-28 09:10:26 +08:00
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#define SLEWCTRL_SLOW (1 << 6)
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#define SLEWCTRL_FAST 0
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2013-06-03 22:12:24 +08:00
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/* update macro depending on INPUT_EN and PULL_ENA */
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#undef PIN_OUTPUT
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#undef PIN_OUTPUT_PULLUP
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#undef PIN_OUTPUT_PULLDOWN
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#undef PIN_INPUT
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#undef PIN_INPUT_PULLUP
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#undef PIN_INPUT_PULLDOWN
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#define PIN_OUTPUT (PULL_DISABLE)
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#define PIN_OUTPUT_PULLUP (PULL_UP)
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#define PIN_OUTPUT_PULLDOWN 0
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#define PIN_INPUT (INPUT_EN | PULL_DISABLE)
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#define PIN_INPUT_PULLUP (INPUT_EN | PULL_UP)
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#define PIN_INPUT_PULLDOWN (INPUT_EN)
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/* undef non-existing modes */
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#undef PIN_OFF_NONE
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#undef PIN_OFF_OUTPUT_HIGH
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#undef PIN_OFF_OUTPUT_LOW
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#undef PIN_OFF_INPUT_PULLUP
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#undef PIN_OFF_INPUT_PULLDOWN
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#undef PIN_OFF_WAKEUPENABLE
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2019-04-09 01:01:50 +08:00
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#define AM335X_PIN_OFFSET_MIN 0x0800U
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#define AM335X_PIN_GPMC_AD0 0x800
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#define AM335X_PIN_GPMC_AD1 0x804
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#define AM335X_PIN_GPMC_AD2 0x808
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#define AM335X_PIN_GPMC_AD3 0x80c
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#define AM335X_PIN_GPMC_AD4 0x810
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#define AM335X_PIN_GPMC_AD5 0x814
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#define AM335X_PIN_GPMC_AD6 0x818
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#define AM335X_PIN_GPMC_AD7 0x81c
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#define AM335X_PIN_GPMC_AD8 0x820
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#define AM335X_PIN_GPMC_AD9 0x824
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#define AM335X_PIN_GPMC_AD10 0x828
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#define AM335X_PIN_GPMC_AD11 0x82c
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#define AM335X_PIN_GPMC_AD12 0x830
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#define AM335X_PIN_GPMC_AD13 0x834
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#define AM335X_PIN_GPMC_AD14 0x838
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#define AM335X_PIN_GPMC_AD15 0x83c
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#define AM335X_PIN_GPMC_A0 0x840
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#define AM335X_PIN_GPMC_A1 0x844
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#define AM335X_PIN_GPMC_A2 0x848
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#define AM335X_PIN_GPMC_A3 0x84c
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#define AM335X_PIN_GPMC_A4 0x850
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#define AM335X_PIN_GPMC_A5 0x854
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#define AM335X_PIN_GPMC_A6 0x858
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#define AM335X_PIN_GPMC_A7 0x85c
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#define AM335X_PIN_GPMC_A8 0x860
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#define AM335X_PIN_GPMC_A9 0x864
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#define AM335X_PIN_GPMC_A10 0x868
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#define AM335X_PIN_GPMC_A11 0x86c
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#define AM335X_PIN_GPMC_WAIT0 0x870
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#define AM335X_PIN_GPMC_WPN 0x874
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#define AM335X_PIN_GPMC_BEN1 0x878
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#define AM335X_PIN_GPMC_CSN0 0x87c
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#define AM335X_PIN_GPMC_CSN1 0x880
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#define AM335X_PIN_GPMC_CSN2 0x884
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#define AM335X_PIN_GPMC_CSN3 0x888
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#define AM335X_PIN_GPMC_CLK 0x88c
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#define AM335X_PIN_GPMC_ADVN_ALE 0x890
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#define AM335X_PIN_GPMC_OEN_REN 0x894
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#define AM335X_PIN_GPMC_WEN 0x898
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#define AM335X_PIN_GPMC_BEN0_CLE 0x89c
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#define AM335X_PIN_LCD_DATA0 0x8a0
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#define AM335X_PIN_LCD_DATA1 0x8a4
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#define AM335X_PIN_LCD_DATA2 0x8a8
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#define AM335X_PIN_LCD_DATA3 0x8ac
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#define AM335X_PIN_LCD_DATA4 0x8b0
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#define AM335X_PIN_LCD_DATA5 0x8b4
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#define AM335X_PIN_LCD_DATA6 0x8b8
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#define AM335X_PIN_LCD_DATA7 0x8bc
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#define AM335X_PIN_LCD_DATA8 0x8c0
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#define AM335X_PIN_LCD_DATA9 0x8c4
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#define AM335X_PIN_LCD_DATA10 0x8c8
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#define AM335X_PIN_LCD_DATA11 0x8cc
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#define AM335X_PIN_LCD_DATA12 0x8d0
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#define AM335X_PIN_LCD_DATA13 0x8d4
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#define AM335X_PIN_LCD_DATA14 0x8d8
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#define AM335X_PIN_LCD_DATA15 0x8dc
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#define AM335X_PIN_LCD_VSYNC 0x8e0
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#define AM335X_PIN_LCD_HSYNC 0x8e4
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#define AM335X_PIN_LCD_PCLK 0x8e8
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#define AM335X_PIN_LCD_AC_BIAS_EN 0x8ec
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#define AM335X_PIN_MMC0_DAT3 0x8f0
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#define AM335X_PIN_MMC0_DAT2 0x8f4
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#define AM335X_PIN_MMC0_DAT1 0x8f8
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#define AM335X_PIN_MMC0_DAT0 0x8fc
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#define AM335X_PIN_MMC0_CLK 0x900
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#define AM335X_PIN_MMC0_CMD 0x904
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#define AM335X_PIN_MII1_COL 0x908
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#define AM335X_PIN_MII1_CRS 0x90c
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#define AM335X_PIN_MII1_RX_ER 0x910
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#define AM335X_PIN_MII1_TX_EN 0x914
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#define AM335X_PIN_MII1_RX_DV 0x918
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#define AM335X_PIN_MII1_TXD3 0x91c
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#define AM335X_PIN_MII1_TXD2 0x920
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#define AM335X_PIN_MII1_TXD1 0x924
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#define AM335X_PIN_MII1_TXD0 0x928
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#define AM335X_PIN_MII1_TX_CLK 0x92c
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#define AM335X_PIN_MII1_RX_CLK 0x930
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#define AM335X_PIN_MII1_RXD3 0x934
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#define AM335X_PIN_MII1_RXD2 0x938
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#define AM335X_PIN_MII1_RXD1 0x93c
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#define AM335X_PIN_MII1_RXD0 0x940
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#define AM335X_PIN_RMII1_REF_CLK 0x944
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#define AM335X_PIN_MDIO 0x948
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#define AM335X_PIN_MDC 0x94c
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#define AM335X_PIN_SPI0_SCLK 0x950
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#define AM335X_PIN_SPI0_D0 0x954
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#define AM335X_PIN_SPI0_D1 0x958
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#define AM335X_PIN_SPI0_CS0 0x95c
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#define AM335X_PIN_SPI0_CS1 0x960
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#define AM335X_PIN_ECAP0_IN_PWM0_OUT 0x964
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#define AM335X_PIN_UART0_CTSN 0x968
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#define AM335X_PIN_UART0_RTSN 0x96c
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#define AM335X_PIN_UART0_RXD 0x970
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#define AM335X_PIN_UART0_TXD 0x974
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#define AM335X_PIN_UART1_CTSN 0x978
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#define AM335X_PIN_UART1_RTSN 0x97c
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#define AM335X_PIN_UART1_RXD 0x980
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#define AM335X_PIN_UART1_TXD 0x984
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#define AM335X_PIN_I2C0_SDA 0x988
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#define AM335X_PIN_I2C0_SCL 0x98c
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#define AM335X_PIN_MCASP0_ACLKX 0x990
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#define AM335X_PIN_MCASP0_FSX 0x994
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#define AM335X_PIN_MCASP0_AXR0 0x998
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#define AM335X_PIN_MCASP0_AHCLKR 0x99c
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#define AM335X_PIN_MCASP0_ACLKR 0x9a0
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#define AM335X_PIN_MCASP0_FSR 0x9a4
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#define AM335X_PIN_MCASP0_AXR1 0x9a8
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#define AM335X_PIN_MCASP0_AHCLKX 0x9ac
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#define AM335X_PIN_XDMA_EVENT_INTR0 0x9b0
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#define AM335X_PIN_XDMA_EVENT_INTR1 0x9b4
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#define AM335X_PIN_WARMRSTN 0x9b8
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#define AM335X_PIN_NNMI 0x9c0
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#define AM335X_PIN_TMS 0x9d0
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#define AM335X_PIN_TDI 0x9d4
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#define AM335X_PIN_TDO 0x9d8
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#define AM335X_PIN_TCK 0x9dc
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#define AM335X_PIN_TRSTN 0x9e0
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#define AM335X_PIN_EMU0 0x9e4
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#define AM335X_PIN_EMU1 0x9e8
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#define AM335X_PIN_RTC_PWRONRSTN 0x9f8
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#define AM335X_PIN_PMIC_POWER_EN 0x9fc
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#define AM335X_PIN_EXT_WAKEUP 0xa00
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#define AM335X_PIN_USB0_DRVVBUS 0xa1c
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#define AM335X_PIN_USB1_DRVVBUS 0xa34
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2013-06-11 22:50:50 +08:00
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2019-04-09 01:01:50 +08:00
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#define AM335X_PIN_OFFSET_MAX 0x0a34U
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#endif
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