b24413180f
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>
93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __MPC83XX_H__
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#define __MPC83XX_H__
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#include <linux/init.h>
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#include <linux/device.h>
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#include <asm/pci-bridge.h>
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/* System Clock Control Register */
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#define MPC83XX_SCCR_OFFS 0xA08
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#define MPC83XX_SCCR_USB_MASK 0x00f00000
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#define MPC83XX_SCCR_USB_MPHCM_11 0x00c00000
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#define MPC83XX_SCCR_USB_MPHCM_01 0x00400000
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#define MPC83XX_SCCR_USB_MPHCM_10 0x00800000
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#define MPC83XX_SCCR_USB_DRCM_11 0x00300000
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#define MPC83XX_SCCR_USB_DRCM_01 0x00100000
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#define MPC83XX_SCCR_USB_DRCM_10 0x00200000
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#define MPC8315_SCCR_USB_MASK 0x00c00000
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#define MPC8315_SCCR_USB_DRCM_11 0x00c00000
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#define MPC8315_SCCR_USB_DRCM_01 0x00400000
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#define MPC837X_SCCR_USB_DRCM_11 0x00c00000
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/* system i/o configuration register low */
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#define MPC83XX_SICRL_OFFS 0x114
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#define MPC834X_SICRL_USB_MASK 0x60000000
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#define MPC834X_SICRL_USB0 0x20000000
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#define MPC834X_SICRL_USB1 0x40000000
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#define MPC831X_SICRL_USB_MASK 0x00000c00
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#define MPC831X_SICRL_USB_ULPI 0x00000800
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#define MPC8315_SICRL_USB_MASK 0x000000fc
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#define MPC8315_SICRL_USB_ULPI 0x00000054
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#define MPC837X_SICRL_USB_MASK 0xf0000000
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#define MPC837X_SICRL_USB_ULPI 0x50000000
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#define MPC837X_SICRL_USBB_MASK 0x30000000
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#define MPC837X_SICRL_SD 0x20000000
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/* system i/o configuration register high */
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#define MPC83XX_SICRH_OFFS 0x118
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#define MPC8308_SICRH_USB_MASK 0x000c0000
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#define MPC8308_SICRH_USB_ULPI 0x00040000
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#define MPC834X_SICRH_USB_UTMI 0x00020000
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#define MPC831X_SICRH_USB_MASK 0x000000e0
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#define MPC831X_SICRH_USB_ULPI 0x000000a0
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#define MPC8315_SICRH_USB_MASK 0x0000ff00
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#define MPC8315_SICRH_USB_ULPI 0x00000000
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#define MPC837X_SICRH_SPI_MASK 0x00000003
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#define MPC837X_SICRH_SD 0x00000001
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/* USB Control Register */
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#define FSL_USB2_CONTROL_OFFS 0x500
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#define CONTROL_UTMI_PHY_EN 0x00000200
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#define CONTROL_REFSEL_24MHZ 0x00000040
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#define CONTROL_REFSEL_48MHZ 0x00000080
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#define CONTROL_PHY_CLK_SEL_ULPI 0x00000400
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#define CONTROL_OTG_PORT 0x00000020
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/* USB PORTSC Registers */
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#define FSL_USB2_PORTSC1_OFFS 0x184
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#define FSL_USB2_PORTSC2_OFFS 0x188
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#define PORTSCX_PTW_16BIT 0x10000000
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#define PORTSCX_PTS_UTMI 0x00000000
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#define PORTSCX_PTS_ULPI 0x80000000
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/*
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* Declaration for the various functions exported by the
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* mpc83xx_* files. Mostly for use by mpc83xx_setup
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*/
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extern void __noreturn mpc83xx_restart(char *cmd);
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extern long mpc83xx_time_init(void);
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extern int mpc837x_usb_cfg(void);
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extern int mpc834x_usb_cfg(void);
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extern int mpc831x_usb_cfg(void);
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extern void mpc83xx_ipic_init_IRQ(void);
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#ifdef CONFIG_QUICC_ENGINE
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extern void mpc83xx_qe_init_IRQ(void);
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extern void mpc83xx_ipic_and_qe_init_IRQ(void);
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#else
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static inline void __init mpc83xx_qe_init_IRQ(void) {}
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#define mpc83xx_ipic_and_qe_init_IRQ mpc83xx_ipic_init_IRQ
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#endif /* CONFIG_QUICC_ENGINE */
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#ifdef CONFIG_PCI
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extern void mpc83xx_setup_pci(void);
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#else
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#define mpc83xx_setup_pci() do {} while (0)
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#endif
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extern int mpc83xx_declare_of_platform_devices(void);
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extern void mpc83xx_setup_arch(void);
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#endif /* __MPC83XX_H__ */
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