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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>
157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __MACH_SDK7786_FPGA_H
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#define __MACH_SDK7786_FPGA_H
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#include <linux/io.h>
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#include <linux/types.h>
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#include <linux/bitops.h>
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#define SRSTR 0x000
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#define SRSTR_MAGIC 0x1971 /* Fixed magical read value */
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#define INTASR 0x010
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#define INTAMR 0x020
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#define MODSWR 0x030
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#define INTTESTR 0x040
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#define SYSSR 0x050
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#define NRGPR 0x060
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#define NMISR 0x070
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#define NMISR_MAN_NMI BIT(0)
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#define NMISR_AUX_NMI BIT(1)
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#define NMISR_MASK (NMISR_MAN_NMI | NMISR_AUX_NMI)
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#define NMIMR 0x080
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#define NMIMR_MAN_NMIM BIT(0) /* Manual NMI mask */
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#define NMIMR_AUX_NMIM BIT(1) /* Auxiliary NMI mask */
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#define NMIMR_MASK (NMIMR_MAN_NMIM | NMIMR_AUX_NMIM)
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#define INTBSR 0x090
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#define INTBMR 0x0a0
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#define USRLEDR 0x0b0
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#define MAPSWR 0x0c0
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#define FPGAVR 0x0d0
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#define FPGADR 0x0e0
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#define PCBRR 0x0f0
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#define RSR 0x100
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#define EXTASR 0x110
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#define SPCAR 0x120
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#define INTMSR 0x130
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#define PCIECR 0x140
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#define PCIECR_PCIEMUX1 BIT(15)
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#define PCIECR_PCIEMUX0 BIT(14)
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#define PCIECR_PRST4 BIT(12) /* slot 4 card present */
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#define PCIECR_PRST3 BIT(11) /* slot 3 card present */
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#define PCIECR_PRST2 BIT(10) /* slot 2 card present */
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#define PCIECR_PRST1 BIT(9) /* slot 1 card present */
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#define PCIECR_CLKEN BIT(4) /* oscillator enable */
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#define FAER 0x150
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#define USRGPIR 0x160
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/* 0x170 reserved */
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#define LCLASR 0x180
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#define LCLASR_FRAMEN BIT(15)
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#define LCLASR_FPGA_SEL_SHIFT 12
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#define LCLASR_NAND_SEL_SHIFT 8
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#define LCLASR_NORB_SEL_SHIFT 4
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#define LCLASR_NORA_SEL_SHIFT 0
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#define LCLASR_AREA_MASK 0x7
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#define LCLASR_FPGA_SEL_MASK (LCLASR_AREA_MASK << LCLASR_FPGA_SEL_SHIFT)
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#define LCLASR_NAND_SEL_MASK (LCLASR_AREA_MASK << LCLASR_NAND_SEL_SHIFT)
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#define LCLASR_NORB_SEL_MASK (LCLASR_AREA_MASK << LCLASR_NORB_SEL_SHIFT)
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#define LCLASR_NORA_SEL_MASK (LCLASR_AREA_MASK << LCLASR_NORA_SEL_SHIFT)
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#define SBCR 0x190
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#define SCBR_I2CMEN BIT(0) /* FPGA I2C master enable */
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#define SCBR_I2CCEN BIT(1) /* CPU I2C master enable */
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#define PWRCR 0x1a0
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#define PWRCR_SCISEL0 BIT(0)
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#define PWRCR_SCISEL1 BIT(1)
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#define PWRCR_SCIEN BIT(2) /* Serial port enable */
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#define PWRCR_PDWNACK BIT(5) /* Power down acknowledge */
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#define PWRCR_PDWNREQ BIT(7) /* Power down request */
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#define PWRCR_INT2 BIT(11) /* INT2 connection to power manager */
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#define PWRCR_BUPINIT BIT(13) /* DDR backup initialize */
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#define PWRCR_BKPRST BIT(15) /* Backup power reset */
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#define SPCBR 0x1b0
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#define SPICR 0x1c0
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#define SPIDR 0x1d0
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#define I2CCR 0x1e0
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#define I2CDR 0x1f0
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#define FPGACR 0x200
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#define IASELR1 0x210
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#define IASELR2 0x220
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#define IASELR3 0x230
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#define IASELR4 0x240
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#define IASELR5 0x250
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#define IASELR6 0x260
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#define IASELR7 0x270
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#define IASELR8 0x280
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#define IASELR9 0x290
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#define IASELR10 0x2a0
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#define IASELR11 0x2b0
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#define IASELR12 0x2c0
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#define IASELR13 0x2d0
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#define IASELR14 0x2e0
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#define IASELR15 0x2f0
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/* 0x300 reserved */
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#define IBSELR1 0x310
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#define IBSELR2 0x320
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#define IBSELR3 0x330
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#define IBSELR4 0x340
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#define IBSELR5 0x350
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#define IBSELR6 0x360
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#define IBSELR7 0x370
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#define IBSELR8 0x380
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#define IBSELR9 0x390
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#define IBSELR10 0x3a0
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#define IBSELR11 0x3b0
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#define IBSELR12 0x3c0
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#define IBSELR13 0x3d0
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#define IBSELR14 0x3e0
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#define IBSELR15 0x3f0
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#define USRACR 0x400
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#define BEEPR 0x410
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#define USRLCDR 0x420
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#define SMBCR 0x430
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#define SMBDR 0x440
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#define USBCR 0x450
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#define AMSR 0x460
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#define ACCR 0x470
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#define SDIFCR 0x480
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/* arch/sh/boards/mach-sdk7786/fpga.c */
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extern void __iomem *sdk7786_fpga_base;
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extern void sdk7786_fpga_init(void);
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/* arch/sh/boards/mach-sdk7786/nmi.c */
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extern void sdk7786_nmi_init(void);
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#define SDK7786_FPGA_REGADDR(reg) (sdk7786_fpga_base + (reg))
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/*
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* A convenience wrapper from register offset to internal I2C address,
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* when the FPGA is in I2C slave mode.
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*/
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#define SDK7786_FPGA_I2CADDR(reg) ((reg) >> 3)
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static inline u16 fpga_read_reg(unsigned int reg)
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{
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return ioread16(sdk7786_fpga_base + reg);
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}
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static inline void fpga_write_reg(u16 val, unsigned int reg)
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{
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iowrite16(val, sdk7786_fpga_base + reg);
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}
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#endif /* __MACH_SDK7786_FPGA_H */
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