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2021-04-16MIPS: pci-rt3883: trivial: remove unused variableIlya Lipnitskiy1-4/+0
Fixes the following compiler warning: warning: unused variable 'flags' [-Wunused-variable] Fixes: e5067c718b3a ("MIPS: pci-rt3883: Remove odd locking in PCI config space access code") Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: trivial@kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-16MIPS: pci-rt2880: remove unneeded locksIlya Lipnitskiy1-13/+0
Mirror pci-rt3883 fix from commit e5067c718b3a ("MIPS: pci-rt3883: Remove odd locking in PCI config space access code"). pci-rt2880 shares the driver layout with pci-rt3883 and the same reasons apply. Caller (generic PCI code) already does proper locking, so no need to add another one here. Local PCI read/write functions are never called simultaneously, also they do not require synchronization with the PCI controller ops, since they are used before the controller registration. Suggested-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-16MIPS: pci-rt2880: fix slot 0 configurationIlya Lipnitskiy1-13/+24
pci_fixup_irqs() used to call pcibios_map_irq on every PCI device, which for RT2880 included bus 0 slot 0. After pci_fixup_irqs() got removed, only slots/funcs with devices attached would be called. While arguably the right thing, that left no chance for this driver to ever initialize slot 0, effectively bricking PCI and USB on RT2880 devices such as the Belkin F5D8235-4 v1. Slot 0 configuration needs to happen after PCI bus enumeration, but before any device at slot 0x11 (func 0 or 1) is talked to. That was determined empirically by testing on a Belkin F5D8235-4 v1 device. A minimal BAR 0 config write followed by read, then setting slot 0 PCI_COMMAND to MASTER | IO | MEMORY is all that seems to be required for proper functionality. Tested by ensuring that full- and high-speed USB devices get enumerated on the Belkin F5D8235-4 v1 (with an out of tree DTS file from OpenWrt). Fixes: 04c81c7293df ("MIPS: PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks") Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Tobias Wolf <dev-NTEO@vplace.de> Cc: <stable@vger.kernel.org> # v4.14+ Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-16MIPS: Fix strnlen_user access checkThomas Bogendoerfer1-2/+2
Commit 04324f44cb69 ("MIPS: Remove get_fs/set_fs") changed the access_ok for strnlen_user to check the whole range, which broke some callers of strndup_user(). Restore the old behaviour and just check the first byte. Fixes: 04324f44cb69 ("MIPS: Remove get_fs/set_fs") Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-13MIPS: Fix access_ok() for the last byte of user spacePaul Burton1-1/+3
The MIPS implementation of access_ok() incorrectly reports that access to the final byte of user memory is not OK, much as the alpha & SH versions did prior to commit 94bd8a05cd4d ("Fix 'acccess_ok()' on alpha and SH"). For example on a MIPS64 system with __UA_LIMIT == 0xffff000000000000 we incorrectly fail in the following cases: access_ok(0xffffffffffff, 0x1) = 0 access_ok(0xfffffffffffe, 0x2) = 0 Fix MIPS in the same way as alpha & SH, by subtracting one from the addr + size condition when size is non-zero. With this the access_ok() calls above return 1 indicating that the access may be valid. The cost of the improved check is pretty minimal - we gain 2410 bytes, or 0.03%, in kernel code size for a 64r6el_defconfig kernel built using GCC 8.1.0. Signed-off-by: Paul Burton <paul.burton@mips.com> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-13staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk'Sergio Paracuellos1-3/+3
Vendor listed for mediatek in kernel vendor file 'vendor-prefixes.yaml' contains 'mediatek' as a valid vendor string. Some nodes in the device tree are using an invalid vendor string vfor 'mtk' instead. Fix all of them in dts file. Update also ralink mt7621 related code to properly match new strings. Even there are used in the device tree there are some strings that are not referred anywhere but have been also updated with new vendor name. These are 'mtk,mt7621-wdt', 'mtk,mt7621-nand', 'mtk,mt7621-mc', and 'mtk,mt7621-cpc'. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20210410055059.13518-4-sergio.paracuellos@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-04-12MIPS: Alchemy: Use DEFINE_SPINLOCK() for spinlockLifu Chen1-2/+1
spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Lifu Chen <chenlifu@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-12MIPS: add support for buggy MT7621S core detectionIlya Lipnitskiy1-1/+22
Most MT7621 SoCs have 2 cores, which is detected and supported properly by CPS. Unfortunately, MT7621 SoC has a less common S variant with only one core. On MT7621S, GCR_CONFIG still reports 2 cores, which leads to hangs when starting SMP. CPULAUNCH registers can be used in that case to detect the absence of the second core and override the GCR_CONFIG PCORES field. Rework a long-standing OpenWrt patch to override the value of mips_cps_numcores on single-core MT7621 systems. Tested on a dual-core MT7621 device (Ubiquiti ER-X) and a single-core MT7621 device (Netgear R6220). Original 4.14 OpenWrt patch: Link: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=4cdbc90a376dd0555201c1434a2081e055e9ceb7 Current 5.10 OpenWrt patch: Link: https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/ramips/patches-5.10/320-mt7621-core-detect-hack.patch;h=c63f0f4c1ec742e24d8480e80553863744b58f6a;hb=10267e17299806f9885d086147878f6c492cb904 Suggested-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-12MIPS: generic: Update node names to avoid unit addressesNathan Chancellor8-46/+46
With the latest mkimage from U-Boot 2021.04, the generic defconfigs no longer build, failing with: /usr/bin/mkimage: verify_header failed for FIT Image support with exit code 1 This is expected after the linked U-Boot commits because '@' is forbidden in the node names due to the way that libfdt treats nodes with the same prefix but different unit addresses. Switch the '@' in the node name to '-'. Drop the unit addresses from the hash and kernel child nodes because there is only one node so they do not need to have a number to differentiate them. Cc: stable@vger.kernel.org Link: https://source.denx.de/u-boot/u-boot/-/commit/79af75f7776fc20b0d7eb6afe1e27c00fdb4b9b4 Link: https://source.denx.de/u-boot/u-boot/-/commit/3f04db891a353f4b127ed57279279f851c6b4917 Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-12MIPS: uaccess: Reduce number of nested macrosThomas Bogendoerfer1-86/+68
Clean up macros even further after removal get_fs/set_fs. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Christoph Hellwig <hch@lst.de>
2021-04-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-1/+1
Conflicts: MAINTAINERS - keep Chandrasekar drivers/net/ethernet/mellanox/mlx5/core/en_main.c - simple fix + trust the code re-added to param.c in -next is fine include/linux/bpf.h - trivial include/linux/ethtool.h - trivial, fix kdoc while at it include/linux/skmsg.h - move to relevant place in tcp.c, comment re-wrapped net/core/skmsg.c - add the sk = sk // sk = NULL around calls net/tipc/crypto.c - trivial Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-09MIPS: octeon: Add __raw_copy_[from|to|in]_user symbolsThomas Bogendoerfer1-2/+6
Cavium Octeon has its own memcpy implementation and also need the change done in commit 04324f44cb69 ("MIPS: Remove get_fs/set_fs"). Fixes: 04324f44cb69 ("MIPS: Remove get_fs/set_fs") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-07MIPS: Fix new sparse warningsThomas Bogendoerfer2-6/+7
Commit 45deb5faeb9e ("MIPS: uaccess: Remove get_fs/set_fs call sites") caused a few new sparse warnings, fix them. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-07mips: netlogic: Use irq_domain_simple_ops for XLP PICMarc Zyngier1-5/+1
Use the generic irq_domain_simple_ops structure instead of a home-grown one. Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Marc Zyngier <maz@kernel.org>
2021-04-06MIPS: ralink: rt288x: select MIPS_AUTO_PFN_OFFSETIlya Lipnitskiy1-0/+1
RT288X systems may have a non-zero ramstart causing problems with memory reservations and boot hangs, as well as messages like: Wasting 1048576 bytes for tracking 32768 unused pages Both are alleviated by selecting MIPS_AUTO_PFN_OFFSET for such platforms. Tested on a Belkin F5D8235 v1 RT2880 device. Link: https://lore.kernel.org/linux-mips/20180820233111.xww5232dxbuouf4n@pburton-laptop/ Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Cc: Mike Rapoport <rppt@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06MIPS: Loongson64: Use _CACHE_UNCACHED instead of _CACHE_UNCACHED_ACCELERATEDTiezhu Yang1-3/+0
Loongson64 processors have a writecombine issue that maybe failed to write back framebuffer used with ATI Radeon or AMD GPU at times, after commit 8a08e50cee66 ("drm: Permit video-buffers writecombine mapping for MIPS"), there exists some errors such as blurred screen and lockup, and so on. [ 60.958721] radeon 0000:03:00.0: ring 0 stalled for more than 10079msec [ 60.965315] radeon 0000:03:00.0: GPU lockup (current fence id 0x0000000000000112 last fence id 0x000000000000011d on ring 0) [ 60.976525] radeon 0000:03:00.0: ring 3 stalled for more than 10086msec [ 60.983156] radeon 0000:03:00.0: GPU lockup (current fence id 0x0000000000000374 last fence id 0x00000000000003a8 on ring 3) As discussed earlier [1], it might be better to disable writecombine on the CPU detection side because the root cause is unknown now. Actually, this patch is a temporary solution to just make it work well, it is not a proper and final solution, I hope someone will have a better solution to fix this issue in the future. [1] https://lore.kernel.org/patchwork/patch/1285542/ Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06MIPS: Remove get_fs/set_fsThomas Bogendoerfer11-400/+190
All get_fs/set_fs calls in MIPS code are gone, so remove implementation of it. With the clear separation of user/kernel space access we no longer need the EVA special handling, so get rid of that, too. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Christoph Hellwig <hch@lst.de>
2021-04-06MIPS: uaccess: Remove get_fs/set_fs call sitesThomas Bogendoerfer3-186/+136
Use new helpers to access user/kernel for functions, which are used with user/kernel pointers. Instead of dealing with get_fs/set_fs select user/kernel access via parameter. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Christoph Hellwig <hch@lst.de>
2021-04-06MIPS: uaccess: Added __get/__put_kernel_nofaultThomas Bogendoerfer3-0/+38
Added __get/__put_kernel_nofault as preparation for removing get/set_fs. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Christoph Hellwig <hch@lst.de>
2021-04-06MIPS: kernel: Remove not needed set_fs callsThomas Bogendoerfer1-8/+0
flush_icache_range always does flush kernel address ranges, so no need to do the set_fs dance. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Christoph Hellwig <hch@lst.de>
2021-04-06MIPS: Add support for CONFIG_DEBUG_VIRTUALFlorian Fainelli6-4/+83
Provide hooks to intercept bad usages of virt_to_phys() and __pa_symbol() throughout the kernel. To make this possible, we need to rename the current implement of virt_to_phys() into __virt_to_phys_nodebug() and wrap it around depending on CONFIG_DEBUG_VIRTUAL. A similar thing is needed for __pa_symbol() which is now aliased to __phys_addr_symbol() whose implementation is either the direct return of RELOC_HIDE or goes through the debug version. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06mips: bmips: bcm63268: populate device tree nodesÁlvaro Fernández Rojas1-14/+116
- Rename periph_clk to periph_osc. - Rename clkctl to periph_clk. - Move syscon-reboot to subnode. - Add hsspi-osc clock. - Add watchdog. - Add HS SPI controller - Add NAND controller. - Add USBH PHY. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06mips: bmips: bcm6368: populate device tree nodesÁlvaro Fernández Rojas1-11/+116
- Rename periph_clk to periph_osc. - Rename clkctl to periph_clk. - Move syscon-reboot to subnode. - Add watchdog controller. - Add SPI controller. - Add NAND controller. - Add USBH PHY controller. - Add RNG controller. - Add cfi-flash controller. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06mips: bmips: bcm6362: populate device tree nodesÁlvaro Fernández Rojas1-11/+116
- Rename periph_clk to periph_osc. - Rename clkctl to periph_clk. - Move syscon-reboot to subnode. - Add hsspi-osc clock. - Add watchdog. - Add SPI controller. - Add HS SPI controller. - Add NAND controller. - Add USBH PHY. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06mips: bmips: bcm6358: populate device tree nodesÁlvaro Fernández Rojas1-11/+72
- Rename periph_clk to periph_osc. - Rename clkctl to periph_clk. - Move syscon-reboot to subnode. - Add watchdog. - Add SPI controller. - Add USBH PHY. - Add cfi-flash. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06mips: bmips: bcm6328: populate device tree nodesÁlvaro Fernández Rojas1-14/+105
- Rename periph_clk to periph_osc. - Rename clkctl to periph_clk. - Move syscon-reboot to subnode. - Add hsspi-osc clock. - Add watchdog. - Add HS SPI controller. - Add NAND controller. - Add USBH PHY. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-06mips: bmips: fix syscon-reboot nodesÁlvaro Fernández Rojas5-5/+5
Commit a23c4134955e added the clock controller nodes, incorrectly changing the syscon-reboot nodes addresses. Fixes: a23c4134955e ("MIPS: BMIPS: add clock controller nodes") Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-02crypto: poly1305 - fix poly1305_core_setkey() declarationArnd Bergmann1-1/+1
gcc-11 points out a mismatch between the declaration and the definition of poly1305_core_setkey(): lib/crypto/poly1305-donna32.c:13:67: error: argument 2 of type ‘const u8[16]’ {aka ‘const unsigned char[16]’} with mismatched bound [-Werror=array-parameter=] 13 | void poly1305_core_setkey(struct poly1305_core_key *key, const u8 raw_key[16]) | ~~~~~~~~~^~~~~~~~~~~ In file included from lib/crypto/poly1305-donna32.c:11: include/crypto/internal/poly1305.h:21:68: note: previously declared as ‘const u8 *’ {aka ‘const unsigned char *’} 21 | void poly1305_core_setkey(struct poly1305_core_key *key, const u8 *raw_key); This is harmless in principle, as the calling conventions are the same, but the more specific prototype allows better type checking in the caller. Change the declaration to match the actual function definition. The poly1305_simd_init() is a bit suspicious here, as it previously had a 32-byte argument type, but looks like it needs to take the 16-byte POLY1305_BLOCK_SIZE array instead. Fixes: 1c08a104360f ("crypto: poly1305 - add new 32 and 64-bit generic versions") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-31mips/sgi-ip27: Delete obsolete TODO fileWang Qing1-19/+0
The TODO file here has not been updated for 15 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mips/sgi-ip27: Delete obsolete TODO fileWang Qing1-19/+0
The TODO file here has not been updated for 15 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-30MIPS: kernel: setup.c: fix compilation errorMauri Sandberg1-1/+1
With ath79_defconfig enabling CONFIG_MIPS_ELF_APPENDED_DTB gives a compilation error. This patch fixes it. Build log: ... CC kernel/locking/percpu-rwsem.o ../arch/mips/kernel/setup.c:46:39: error: conflicting types for '__appended_dtb' const char __section(".appended_dtb") __appended_dtb[0x100000]; ^~~~~~~~~~~~~~ In file included from ../arch/mips/kernel/setup.c:34: ../arch/mips/include/asm/bootinfo.h:118:13: note: previous declaration of '__appended_dtb' was here extern char __appended_dtb[]; ^~~~~~~~~~~~~~ CC fs/attr.o make[4]: *** [../scripts/Makefile.build:271: arch/mips/kernel/setup.o] Error 1 ... Root cause seems to be: Fixes: b83ba0b9df56 ("MIPS: of: Introduce helper function to get DTB") Signed-off-by: Mauri Sandberg <sandberg@mailfence.com> Reviewed-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: trivial@kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-29MIPS: Loongson64: enable CONFIG_USB_SERIAL_PL2303Qing Zhang1-0/+1
When using the Loongson-3A4000 machine for serial port debugging, there is no /dev/ttyUSB* output, which makes the serial port unavailable, For convenience, we open this configuration. zhangqing@loongson-pc:~$ cat /sys/firmware/lefi/boardinfo Board Info Manufacturer : THTF Board Name : THTF-LS3A4000-7A1000-ML4A Family : LOONGSON3 BIOS Info Vendor : ZD tech Version : ZD tech-V2.1.1 ROM Size : 4 KB Release Date : 2020-06-29 zhangqing@loongson-pc:~$ lsusb Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse Bus 005 Device 002: ID 0c45:760b Microdia USB Keyboard Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 003: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-29crypto: mips: add poly1305-core.S to .gitignoreIlya Lipnitskiy1-0/+2
poly1305-core.S is an auto-generated file, so it should be ignored. Fixes: a11d055e7a64 ("crypto: mips/poly1305 - incorporate OpenSSL/CRYPTOGAMS optimized implementation") Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Cc: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-29MIPS: ralink: mt7621: add memory detection supportChuanhong Guo4-7/+32
mt7621 has the following memory map: 0x0-0x1c000000: lower 448m memory 0x1c000000-0x2000000: peripheral registers 0x20000000-0x2400000: higher 64m memory detect_memory_region in arch/mips/kernel/setup.c only adds the first memory region and isn't suitable for 512m memory detection because it may accidentally read the memory area for peripheral registers. This commit adds memory detection capability for mt7621: 1. Add the highmem area when 512m is detected. 2. Guard memcmp from accessing peripheral registers: This only happens when a user decided to change kernel load address to 256m or higher address. Since this is a quite unusual case, we just skip 512m testing and return 256m as memory size. Signed-off-by: Chuanhong Guo <gch981213@gmail.com> [Minor commit message reword, make mt7621_memory_detect static] Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-29MIPS: ralink: annotate prom_soc_init() with __initIlya Lipnitskiy6-6/+6
prom_soc_init is only called from prom_init in arch/mips/ralink/prom.c, which is already annotated with __init, so annotate prom_soc_init with __init too. Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-29arch: mips: fix unmet dependency for MTD_COMPLEX_MAPPINGSJulian Braha1-0/+1
When CAVIUM_OCTEON_SOC is enabled, and MTD is disabled, Kbuild gives the following warning: WARNING: unmet direct dependencies detected for MTD_COMPLEX_MAPPINGS Depends on [n]: MTD [=n] && HAS_IOMEM [=y] Selected by [y]: - CAVIUM_OCTEON_SOC [=y] && <choice> This is because CAVIUM_OCTEON_SOC selects MTD_COMPLEX_MAPPINGS, without selecting or depending on MTD, despite MTD_COMPLEX_MAPPINGS depending on MTD. Signed-off-by: Julian Braha <julianbraha@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-29arch: mips: fix unmet dependency for DEBUG_INFOJulian Braha1-0/+1
When SB1XXX_CORELIS is enabled, COMPILE_TEST is disabled, and DEBUG_KERNEL is disabled, Kbuild gives the following warning: WARNING: unmet direct dependencies detected for DEBUG_INFO Depends on [n]: DEBUG_KERNEL [=n] && !COMPILE_TEST [=n] Selected by [y]: - SB1XXX_CORELIS [=y] && SIBYTE_SB1xxx_SOC [=y] && !COMPILE_TEST [=n] This is because SB1XXX_CORELIS selects DEBUG_INFO without selecting or depending on DEBUG_KERNEL, despite DEBUG_INFO depending on DEBUG_KERNEL. Signed-off-by: Julian Braha <julianbraha@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-29MIPS/bpf: Enable bpf_probe_read{, str}() on MIPS againTiezhu Yang1-0/+1
After commit 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work"), bpf_probe_read{, str}() functions were no longer available on MIPS, so there exist some errors when running bpf program: root@linux:/home/loongson/bcc# python examples/tracing/task_switch.py bpf: Failed to load program: Invalid argument [...] 11: (85) call bpf_probe_read#4 unknown func bpf_probe_read#4 [...] Exception: Failed to load BPF program count_sched: Invalid argument ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE should be restricted to archs with non-overlapping address ranges, but they can overlap in EVA mode on MIPS, so select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA in arch/mips/Kconfig, otherwise the bpf old helper bpf_probe_read() will not be available. This is similar with the commit d195b1d1d119 ("powerpc/bpf: Enable bpf_probe_read{, str}() on powerpc again"). Fixes: 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work") Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-25MIPS: loongson64: fix bug when PAGE_SIZE > 16KBHuang Pei1-1/+1
When page size larger than 16KB, arguments "vaddr + size(16KB)" in "ioremap_page_range(vaddr, vaddr + size,...)" called by "add_legacy_isa_io" is not page-aligned. As loongson64 needs at least page size 16KB to get rid of cache alias, and "vaddr" is 64KB-aligned, and 64KB is largest page size supported, rounding "size" up to PAGE_SIZE is enough for all page size supported. Fixes: 6d0068ad15e4 ("MIPS: Loongson64: Process ISA Node in DeviceTree") Signed-off-by: Huang Pei <huangpei@loongson.cn> Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-25MIPS: ralink: define stubs for clk_set_parent to fix compile testingKrzysztof Kozlowski1-0/+14
The Ralink MIPS platform does not use Common Clock Framework and does not define certain clock operations leading to compile test failures: /usr/bin/mips-linux-gnu-ld: drivers/usb/phy/phy-tegra-usb.o: in function `tegra_usb_phy_init': phy-tegra-usb.c:(.text+0x1dd4): undefined reference to `clk_get_parent' Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: John Crispin <john@phrozen.org> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-25MIPS: Loongson64: Add a Loongson-2K1000 default config fileQing Zhang1-0/+353
Add default config for Loongson-2K1000. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Tested-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-25MIPS: Loongson64: Add Loongson-2K1000 early_printk_portQing Zhang1-1/+4
Distinguish between Loongson-3A series CPU and Loongson-2K1000 CPU UART0. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Tested-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-25MIPS: Loongson64: Add support for the Loongson-2K1000 to get cpu_clock_freqQing Zhang1-0/+24
Get the fixed-clock from the CPU0 node of the device tree. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Tested-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-25MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFIQing Zhang3-4/+34
Add DTB boot support, only support Loongson-2K1000 processor for now, determine whether to use the built-in DTB or the DTB from the firmware by checking the range of CKSEG0 and XKPHYS. loongson_fw_interface will be used in the future. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Tested-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-25MIPS: Loongson64: DeviceTree for Loongson-2K1000Qing Zhang4-0/+255
Add DeviceTree files for Loongson-2K1000 processor, currently only supports single-core boot. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Tested-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-24drivers/block: remove the umem driverDavidlohr Bueso3-3/+0
This removes the driver on the premise that it has been unused for a long time. This is a better approach compared to changing untestable code nobody cares about in the first place. Similarly, the umem.com website now shows a mere Godaddy parking add. Acked-by: NeilBrown <neilb@suse.de> Suggested-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-03-24MIPS: fix local_irq_{disable,enable} in asmmacro.hHuang Pei1-2/+1
commit ba9196d2e005 ("MIPS: Make DIEI support as a config option") use CPU_HAS_DIEI to indicate whether di/ei is implemented correctly, without this patch, "local_irq_disable" from entry.S in 3A1000 (with buggy di/ei) lose protection of commit e97c5b609880 ("MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus") Fixes: ba9196d2e005 ("MIPS: Make DIEI support as a config option") Signed-off-by: Huang Pei <huangpei@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-24MIPS: SiByte: Enable pata_platform with SWARM defconfigMaciej W. Rozycki1-0/+8
Enable support for the onboard PATA PIO mode3 interface, which is one of the boot devices supported by the CFE firmware with the Broadcom SWARM board. Include disk, CD-ROM and generic storage drivers. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-24MIPS: SiByte: Regenerate stale SWARM defconfigMaciej W. Rozycki1-8/+1
Options have been removed and reordered since the last update, so regenerate the template so as not to interfere with actual changes. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-24MIPS: disable CONFIG_IDE in malta*_defconfigChristoph Hellwig2-6/+0
Various malta defconfigs enable CONFIG_IDE for the tc86c001 ide driver, hich is a Toshiba plug in card that does not make much sense to use on bigsur platforms. For all other ATA cards libata support is already enabled. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-24 16:00:04 +0300