kernel.git/arch/mips/ralink, branch linux-5.13.y

MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c

2021-05-25T13:22:04Z

rt2880_wdt.c uses (well, attempts to use) rt_sysc_membase. However, when this watchdog driver is built as a loadable module, there is a build error since the rt_sysc_membase symbol is not exported. Export it to quell the build error. ERROR: modpost: "rt_sysc_membase" [drivers/watchdog/rt2880_wdt.ko] undefined! Fixes: 473cf939ff34 ("watchdog: add ralink watchdog driver") Signed-off-by: Randy Dunlap Cc: Guenter Roeck Cc: Wim Van Sebroeck Cc: John Crispin Cc: linux-mips@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Acked-by: Guenter Roeck Signed-off-by: Thomas Bogendoerfer

Merge tag 'mips_5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2021-04-29T18:28:08Z

Pull MIPS updates from Thomas Bogendoerfer: - removed get_fs/set_fs - removed broken/unmaintained MIPS KVM trap and emulate support - added support for Loongson-2K1000 - fixes and cleanups * tag 'mips_5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (107 commits) MIPS: BCM63XX: Use BUG_ON instead of condition followed by BUG. MIPS: select ARCH_KEEP_MEMBLOCK unconditionally mips: Do not include hi and lo in clobber list for R6 MIPS:DTS:Correct the license for Loongson-2K MIPS:DTS:Fix label name and interrupt number of ohci for Loongson-2K MIPS: Avoid handcoded DIVU in `__div64_32' altogether lib/math/test_div64: Correct the spelling of "dividend" lib/math/test_div64: Fix error message formatting mips/bootinfo:correct some comments of fw_arg MIPS: Avoid DIVU in `__div64_32' is result would be zero MIPS: Reinstate platform `__div64_32' handler div64: Correct inline documentation for `do_div' lib/math: Add a `do_div' test module MIPS: Makefile: Replace -pg with CC_FLAGS_FTRACE MIPS: pci-legacy: revert "use generic pci_enable_resources" MIPS: Loongson64: Add kexec/kdump support MIPS: pci-legacy: use generic pci_enable_resources MIPS: pci-legacy: remove busn_resource field MIPS: pci-legacy: remove redundant info messages MIPS: pci-legacy: stop using of_pci_range_to_resource ...

staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk'

2021-04-13T02:10:54Z

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 Acked-by: Thomas Bogendoerfer Signed-off-by: Sergio Paracuellos Link: https://lore.kernel.org/r/20210410055059.13518-4-sergio.paracuellos@gmail.com Signed-off-by: Stephen Boyd

MIPS: ralink: rt288x: select MIPS_AUTO_PFN_OFFSET

2021-04-06T13:12:58Z

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 Cc: Mike Rapoport Signed-off-by: Thomas Bogendoerfer

MIPS: ralink: mt7621: add memory detection support

2021-03-29T09:18:54Z

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 [Minor commit message reword, make mt7621_memory_detect static] Signed-off-by: Ilya Lipnitskiy Signed-off-by: Thomas Bogendoerfer

MIPS: ralink: annotate prom_soc_init() with __init

2021-03-29T09:18:36Z

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 Signed-off-by: Thomas Bogendoerfer

MIPS: ralink: define stubs for clk_set_parent to fix compile testing

2021-03-25T09:47:52Z

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 Signed-off-by: Krzysztof Kozlowski Acked-by: John Crispin Reviewed-by: Dmitry Osipenko Signed-off-by: Thomas Bogendoerfer

MIPS: ralink: manage low reset lines

2021-02-04T12:35:01Z

Reset lines with indices smaller than 8 are currently considered invalid by the rt2880-reset reset controller. The MT7621 SoC uses a number of these low reset lines. The DTS defines reset lines "hsdma", "fe", and "mcm" with respective values 5, 6, and 2. As a result of the above restriction, these resets cannot be asserted or de-asserted by the reset controller. In cases where the bootloader does not de-assert these lines, this results in e.g. the MT7621's internal switch staying in reset. Change the reset controller to only ignore the system reset, so all reset lines with index greater than 0 are considered valid. Signed-off-by: Sander Vanheule Acked-by: John Crispin Signed-off-by: Thomas Bogendoerfer

MIPS: of: Introduce helper function to get DTB

2021-02-04T12:34:51Z

Selection of the DTB to be used was burried in more or less readable code in head.S. Move this code into a inline helper function and use it. Signed-off-by: Thomas Bogendoerfer Acked-by: Florian Fainelli

MIPS: Remove empty prom_free_prom_memory functions

2021-01-07T16:11:33Z

Most of the prom_free_prom_memory functions are empty. With a new weak prom_free_prom_memory() we can remove all of them. Signed-off-by: Thomas Bogendoerfer Acked-by: Florian Fainelli