Commit Graph

207 Commits

Author SHA1 Message Date
Sergio Paracuellos 2bdd5238e7 PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver
Add driver for the PCIe controller of the MT7621 SoC.

[bhelgaas: rename from pci-mt7621.c to pcie-mt7621.c; also rename Kconfig
symbol from PCI_MT7621 to PCIE_MT7621]
Link: https://lore.kernel.org/r/20210922050035.18162-3-sergio.paracuellos@gmail.com
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-21 10:59:18 -05:00
Marc Zyngier 0661cb2af0 mips: Bulk conversion to generic_handle_domain_irq()
Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().

Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Marc Zyngier <maz@kernel.org>
2021-08-12 11:39:40 +01:00
Linus Torvalds a32b344e6f This is the bulk of pin control changes for the v5.14 kernel:
New drivers:
 
 - Last merge window we created a driver for the Ralink RT2880.
   We are now moving the Ralink SoC pin control drivers out of the MIPS
   architecture code and into the pin control subsystem. This concerns
   RT288X, MT7620, RT305X, RT3883 and MT7621.
 
 - Qualcomm SM6125 SoC pin control driver.
 
 - Qualcomm spmi-gpio support for PM7325.
 
 - Qualcomm spmi-mpp also handles PMI8994 (just a compatible string)
 
 - Mediatek MT8365 SoC pin controller.
 
 - New device HID for the AMD GPIO controller.
 
 Improvements:
 
 - Pin bias config support for a slew of Renesas pin controllers.
 
 - Incremental improvements and non-urgent bug fixes to the Renesas
   SoC drivers.
 
 - Implement irq_set_wake on the AMD pin controller so we can wake
   up from external pin events.
 
 Misc:
 
 - Devicetree bindings for the Apple M1 pin controller, we will probably
   see a proper driver for this soon as well.
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Merge tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.14 kernel. Not so
  much going on. No core changes, just drivers.

  The most interesting would be that MIPS Ralink is migrating to pin
  control and we have some bindings but not yet code for the Apple M1
  pin controller.

  New drivers:

   - Last merge window we created a driver for the Ralink RT2880. We are
     now moving the Ralink SoC pin control drivers out of the MIPS
     architecture code and into the pin control subsystem. This concerns
     RT288X, MT7620, RT305X, RT3883 and MT7621.

   - Qualcomm SM6125 SoC pin control driver.

   - Qualcomm spmi-gpio support for PM7325.

   - Qualcomm spmi-mpp also handles PMI8994 (just a compatible string)

   - Mediatek MT8365 SoC pin controller.

   - New device HID for the AMD GPIO controller.

  Improvements:

   - Pin bias config support for a slew of Renesas pin controllers.

   - Incremental improvements and non-urgent bug fixes to the Renesas
     SoC drivers.

   - Implement irq_set_wake on the AMD pin controller so we can wake up
     from external pin events.

  Misc:

   - Devicetree bindings for the Apple M1 pin controller, we will
     probably see a proper driver for this soon as well"

* tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (54 commits)
  pinctrl: ralink: rt305x: add missing include
  pinctrl: stm32: check for IRQ MUX validity during alloc()
  pinctrl: zynqmp: some code cleanups
  drivers: qcom: pinctrl: Add pinctrl driver for sm6125
  dt-bindings: pinctrl: qcom: sm6125: Document SM6125 pinctrl driver
  dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios
  pinctrl: mcp23s08: Add optional reset GPIO
  pinctrl: mediatek: fix mode encoding
  pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq()
  pinctrl: bcm: Constify static pinmux_ops
  pinctrl: bcm: Constify static pinctrl_ops
  pinctrl: ralink: move RT288X SoC pinmux config into a new 'pinctrl-rt288x.c' file
  pinctrl: ralink: move MT7620 SoC pinmux config into a new 'pinctrl-mt7620.c' file
  pinctrl: ralink: move RT305X SoC pinmux config into a new 'pinctrl-rt305x.c' file
  pinctrl: ralink: move RT3883 SoC pinmux config into a new 'pinctrl-rt3883.c' file
  pinctrl: ralink: move MT7621 SoC pinmux config into a new 'pinctrl-mt7621.c' file
  pinctrl: ralink: move ralink architecture pinmux header into the driver
  pinctrl: single: config: enable the pin's input
  pinctrl: mtk: Fix mt8365 Kconfig dependency
  pinctrl: mcp23s08: fix race condition in irq handler
  ...
2021-07-01 16:57:14 -07:00
Linus Torvalds 514798d365 This round has a diffstat dominated by Qualcomm clk drivers. Honestly though
that's just a bunch of data so the diffstat reflects that. Looking beyond that
 there's just a bunch of updates all around in various clk drivers. Renesas and
 NXP (for i.MX) are two SoC vendors that have a lot of patches in here. Overall
 the driver changes look to be mostly enabling more clks and non-critical fixes
 that we could hold until the next merge window.
 
 I'm especially excited about the series from Arnd that graduates clkdev to be
 the only implementation of clk_get() and clk_put(). That's a good step in the
 right direction to migreate eveerything over to the common clk framework. Now
 we don't have to worry about clkdev specific details, they're just part of the
 clk API now.
 
 Core:
  - clkdev is now the only option, i.e. clk_get()/clk_put() is implemented in
    only one place in the kernel instead of in drivers/clk/clkdev.c and in
    architectures that want their own implementation
 
 New Drivers:
  - Texas Instruments' LMK04832 Ultra Low-Noise JESD204B Compliant Clock
    Jitter Cleaner With Dual Loop PLLs
  - Qualcomm MDM9607 GCC
  - Qualcomm SC8180X display clks
  - Qualcomm SM6125 GCC
  - Qualcomm SM8250 CAMCC (camera)
  - Renesas RZ/G2L SoC
  - Hisilicon hi3559A SoC
 
 Updates:
  - Stop using clock-output-names in ST clk drivers (yay!)
  - Support secure mode of STM32MP1 SoCs
  - Improve clock support for Actions S500 SoC
  - duty cycle setting support on qcom clks
  - Add TI am33xx spread spectrum clock support
  - Use determine_rate() for the Amlogic pll ops instead of round_rate()
  - Restrict Amlogic gp0/1 and audio plls range on g12a/sm1
  - Improve Amlogic axg-audio controller error on deferral
  - Add NNA clocks on Amlogic g12a
  - Reduce memory footprint of Rockchip PLL rate tables
  - A fix for the newly added Rockchip rk3568 clk driver
  - Exported clock for the newly added Rockchip video decoder
  - Remove audio ipg clock from i.MX8MP
  - Remove deprecated legacy clock binding for i.MX SCU clock driver
  - Use common clk-imx8qxp for both i.MX8QXP and i.MX8QM
  - Add multiple clocks to clk-imx8qxp driver (enet, hdmi, lcdif, audio,
    parallel interface)
  - Add dedicated clock ops for i.MX paralel interface
  - Different fixes for clocks controlled by ATF on i.MX SoCs
  - Add A53/A72 frequency scaling support i.MX clk-scu driver
  - Add special case for DCSS clock on suspend for i.MX clk-scu driver
  - Add parent save/restore on suspend/resume to i.MX clk-scu driver
  - Skip runtime PM enablement for CPU clocks in i.MX clk-scu driver
  - Remove the sys1_pll/sys2_pll clock gates for i.MX8MQ and their
    bindings
  - Tegra clk driver no longer deasserts resets on clk_enable as it
    gets in the way of certain power-up sequences
  - Fix compile testing for Tegra clk driver
  - One patch to fix a divider on the Allwinner v3s Audio PLL
  - Add support for CPU core clock boost modes on Renesas R-Car Gen3
  - Add ISPCS (Image Signal Processor) clocks on Renesas R-Car V3U
  - Switch SH/R-Mobile and R-Car "DIV6" clocks to .determine_rate()
    and improve support for multiple parents
  - Switch Renesas RZ/N1 divider clocks to .determine_rate()
  - Add ZA2 (Audio Clock Generator) clock on Renesas R-Car D3
  - Convert ar7 to common clk framework
  - Convert ralink to common clk framework
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This round has a diffstat dominated by Qualcomm clk drivers. Honestly
  though that's just a bunch of data so the diffstat reflects that.
  Looking beyond that there's just a bunch of updates all around in
  various clk drivers. Renesas and NXP (for i.MX) are two SoC vendors
  that have a lot of patches in here.

  Overall the driver changes look to be mostly enabling more clks and
  non-critical fixes that we could hold until the next merge window.

  I'm especially excited about the series from Arnd that graduates
  clkdev to be the only implementation of clk_get() and clk_put().
  That's a good step in the right direction to migreate eveerything over
  to the common clk framework. Now we don't have to worry about clkdev
  specific details, they're just part of the clk API now.

  Core:
   - clkdev is now the only option, i.e. clk_get()/clk_put() is
     implemented in only one place in the kernel instead of in
     drivers/clk/clkdev.c and in architectures that want their own
     implementation

  New Drivers:
   - Texas Instruments' LMK04832 Ultra Low-Noise JESD204B Compliant
     Clock Jitter Cleaner With Dual Loop PLLs
   - Qualcomm MDM9607 GCC
   - Qualcomm SC8180X display clks
   - Qualcomm SM6125 GCC
   - Qualcomm SM8250 CAMCC (camera)
   - Renesas RZ/G2L SoC
   - Hisilicon hi3559A SoC

  Updates:
   - Stop using clock-output-names in ST clk drivers (yay!)
   - Support secure mode of STM32MP1 SoCs
   - Improve clock support for Actions S500 SoC
   - duty cycle setting support on qcom clks
   - Add TI am33xx spread spectrum clock support
   - Use determine_rate() for the Amlogic pll ops instead of
     round_rate()
   - Restrict Amlogic gp0/1 and audio plls range on g12a/sm1
   - Improve Amlogic axg-audio controller error on deferral
   - Add NNA clocks on Amlogic g12a
   - Reduce memory footprint of Rockchip PLL rate tables
   - A fix for the newly added Rockchip rk3568 clk driver
   - Exported clock for the newly added Rockchip video decoder
   - Remove audio ipg clock from i.MX8MP
   - Remove deprecated legacy clock binding for i.MX SCU clock driver
   - Use common clk-imx8qxp for both i.MX8QXP and i.MX8QM
   - Add multiple clocks to clk-imx8qxp driver (enet, hdmi, lcdif,
     audio, parallel interface)
   - Add dedicated clock ops for i.MX paralel interface
   - Different fixes for clocks controlled by ATF on i.MX SoCs
   - Add A53/A72 frequency scaling support i.MX clk-scu driver
   - Add special case for DCSS clock on suspend for i.MX clk-scu driver
   - Add parent save/restore on suspend/resume to i.MX clk-scu driver
   - Skip runtime PM enablement for CPU clocks in i.MX clk-scu driver
   - Remove the sys1_pll/sys2_pll clock gates for i.MX8MQ and their
     bindings
   - Tegra clk driver no longer deasserts resets on clk_enable as it
     gets in the way of certain power-up sequences
   - Fix compile testing for Tegra clk driver
   - One patch to fix a divider on the Allwinner v3s Audio PLL
   - Add support for CPU core clock boost modes on Renesas R-Car Gen3
   - Add ISPCS (Image Signal Processor) clocks on Renesas R-Car V3U
   - Switch SH/R-Mobile and R-Car "DIV6" clocks to .determine_rate() and
     improve support for multiple parents
   - Switch Renesas RZ/N1 divider clocks to .determine_rate()
   - Add ZA2 (Audio Clock Generator) clock on Renesas R-Car D3
   - Convert ar7 to common clk framework
   - Convert ralink to common clk framework"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (161 commits)
  clk: zynqmp: Handle divider specific read only flag
  clk: zynqmp: Use firmware specific mux clock flags
  clk: zynqmp: Use firmware specific divider clock flags
  clk: zynqmp: Use firmware specific common clock flags
  clk: lmk04832: Use of match table
  clk: lmk04832: Depend on SPI
  clk: stm32mp1: new compatible for secure RCC support
  dt-bindings: clock: stm32mp1 new compatible for secure rcc
  dt-bindings: reset: add MCU HOLD BOOT ID for SCMI reset domains on stm32mp15
  dt-bindings: reset: add IDs for SCMI reset domains on stm32mp15
  dt-bindings: clock: add IDs for SCMI clocks on stm32mp15
  reset: stm32mp1: remove stm32mp1 reset
  clk: hisilicon: Add clock driver for hi3559A SoC
  dt-bindings: Document the hi3559a clock bindings
  clk: si5341: Add sysfs properties to allow checking/resetting device faults
  clk: si5341: Add silabs,iovdd-33 property
  clk: si5341: Add silabs,xaxb-ext-clk property
  clk: si5341: Allow different output VDD_SEL values
  clk: si5341: Update initialization magic
  clk: si5341: Check for input clock presence and PLL lock on startup
  ...
2021-07-01 13:26:16 -07:00
Arnd Bergmann 35f752be4f mips: ralink: convert to CONFIG_COMMON_CLK
ralink only has a very trivial clock implementation, with everything
being fixed clocks.

Convert it to CONFIG_COMMON_CLK to reduce the number of platforms
that rely on legacy clocks. Of course, the clocks really should
be read from the device tree instead, but this is a step into that
direction.

This adds about 50KB to the kernel image size, which is an unfortunate
increase, but not as bad as I had feared:

   text	   data	    bss	    dec	    hex	filename
3778560	1582216	  92256	5453032	 5334e8	vmlinux-vocore-before
3822148	1601192	  92304	5515644	 54297c	vmlinux-vocore-after
3870226	1644468	 200192	5714886	 5733c6	vmlinux-rt305x-before
3916727	1668404	 200240	5785371	 58471b	vmlinux-rt305x-after

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-06-08 17:00:09 +02:00
Sergio Paracuellos a49a8717d8 pinctrl: ralink: move RT288X SoC pinmux config into a new 'pinctrl-rt288x.c' file
Move all related code for SoC RT288X into a new driver located
in 'pinctrl-rt288x.c' source file.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210604115159.8834-7-sergio.paracuellos@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-07 09:17:48 +02:00
Sergio Paracuellos 745ec436de pinctrl: ralink: move MT7620 SoC pinmux config into a new 'pinctrl-mt7620.c' file
Move all related code for SoC MT7620 into a new driver located
in 'pinctrl-mt7620.c' source file.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210604115159.8834-6-sergio.paracuellos@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-07 09:17:47 +02:00
Sergio Paracuellos 3a1b0ca5a8 pinctrl: ralink: move RT305X SoC pinmux config into a new 'pinctrl-rt305x.c' file
Move all related code for SoC RT305X into a new driver located
in 'pinctrl-rt305x.c' source file.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210604115159.8834-5-sergio.paracuellos@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-07 09:17:47 +02:00
Sergio Paracuellos 8b8b0fa21d pinctrl: ralink: move RT3883 SoC pinmux config into a new 'pinctrl-rt3883.c' file
Move all related code for SoC RT3883 into a new driver located
in 'pinctrl-rt3883.c' source file

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210604115159.8834-4-sergio.paracuellos@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-07 09:17:47 +02:00
Sergio Paracuellos e98dd3db96 pinctrl: ralink: move MT7621 SoC pinmux config into a new 'pinctrl-mt7621.c' file
Move all related code for SoC MT7621 into a new driver located
in 'pinctrl-mt7621.c' source file.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210604115159.8834-3-sergio.paracuellos@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-07 09:17:47 +02:00
Sergio Paracuellos 276e552e08 pinctrl: ralink: move ralink architecture pinmux header into the driver
Ralink architecture is making use of the header located in
'arch/mips/include/asm/mach-ralink/pinmux.h' to stablish the
mechanisms to make derived SoCs to set its pin functions and
groups. In order to move all architecture pinmux into a more
accurate place which is 'drivers/pinctrl/ralink' we have to
first of all move this file also there with a small modification
which creates 'rt2880_pinmux_init' function to allow SoCs pinctrl
drivers to pass its configuration to the common code located in
'pinctrl-rt2880.c' file.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210604115159.8834-2-sergio.paracuellos@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-07 09:17:47 +02:00
Randy Dunlap fef532ea0c MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c
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: 473cf939ff ("watchdog: add ralink watchdog driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: John Crispin <john@phrozen.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-watchdog@vger.kernel.org
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-05-25 15:22:04 +02:00
Linus Torvalds 77d51337d6 - removed get_fs/set_fs
- removed broken/unmaintained MIPS KVM trap and emulate support
 - added support for Loongson-2K1000
 - fixes and cleanups
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Merge tag 'mips_5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

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
  ...
2021-04-29 11:28:08 -07:00
Sergio Paracuellos 49268e249a staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk'
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>
2021-04-12 19:10:54 -07:00
Ilya Lipnitskiy 7f028bff8a MIPS: ralink: rt288x: select MIPS_AUTO_PFN_OFFSET
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>
2021-04-06 15:12:58 +02:00
Chuanhong Guo 139c949f7f MIPS: ralink: mt7621: add memory detection support
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>
2021-03-29 11:18:54 +02:00
Ilya Lipnitskiy 8eb6eb4882 MIPS: ralink: annotate prom_soc_init() with __init
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>
2021-03-29 11:18:36 +02:00
Krzysztof Kozlowski 84a0124a9d MIPS: ralink: define stubs for clk_set_parent to fix compile testing
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>
2021-03-25 10:47:52 +01:00
Sander Vanheule 3f9ef7785a MIPS: ralink: manage low reset lines
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 <sander@svanheule.net>
Acked-by: John Crispin <john@phrozen.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-04 13:35:01 +01:00
Thomas Bogendoerfer b83ba0b9df MIPS: of: Introduce helper function to get DTB
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 <tsbogend@alpha.franken.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2021-02-04 13:34:51 +01:00
Thomas Bogendoerfer a6e83acee2 MIPS: Remove empty prom_free_prom_memory functions
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 <tsbogend@alpha.franken.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2021-01-07 17:11:33 +01:00
Nathan Chancellor d422c6c064 MIPS: Use address-of operator on section symbols
When building xway_defconfig with clang:

arch/mips/lantiq/prom.c:82:23: error: array comparison always evaluates
to true [-Werror,-Wtautological-compare]
        else if (__dtb_start != __dtb_end)
                             ^
1 error generated.

These are not true arrays, they are linker defined symbols, which are
just addresses. Using the address of operator silences the warning
and does not change the resulting assembly with either clang/ld.lld
or gcc/ld (tested with diff + objdump -Dr). Do the same thing across
the entire MIPS subsystem to ensure there are no more warnings around
this type of comparison.

Link: https://github.com/ClangBuiltLinux/linux/issues/1232
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-01-07 17:10:36 +01:00
Thomas Bogendoerfer e7ae8d174e MIPS: replace add_memory_region with memblock
add_memory_region was the old interface for registering memory and
was already changed to used memblock internaly. Replace it by
directly calling memblock functions.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-10-12 12:01:36 +02:00
Linus Torvalds 6f630784cc This time around we have 4 lines of diff in the core framework, removing a
function that isn't used anymore. Otherwise the main new thing for the common
 clk framework is that it is selectable in the Kconfig language now. Hopefully
 this will let clk drivers and clk consumers be testable on more than the
 architectures that support the clk framework. The goal is to introduce some
 Kunit tests for the framework.
 
 Outside of the core framework we have the usual set of various driver updates
 and non-critical fixes. The dirstat shows that the new Baikal-T1 driver is the
 largest addition this time around in terms of lines of code. After that the x86
 (Intel), Qualcomm, and Mediatek drivers introduce many lines to support new or
 upcoming SoCs. After that the dirstat shows the usual suspects working on their
 SoC support by fixing minor bugs, correcting data and converting some of their
 DT bindings to YAML.
 
 Core:
  - Allow the COMMON_CLK config to be selectable
 
 New Drivers:
  - Clk driver for Baikal-T1 SoCs
  - Mediatek MT6765 clock support
  - Support for Intel Agilex clks
  - Add support for X1830 and X1000 Ingenic SoC clk controllers
  - Add support for the new Renesas RZ/G1H (R8A7742) SoC
  - Add support for Qualcomm's MSM8939 Generic Clock Controller
 
 Updates:
  - Support IDT VersaClock 5P49V5925
  - Bunch of updates for HSDK clock generation unit (CGU) driver
  - Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
  - Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
  - Enable supply regulators for GPU gdscs on Qualcomm SoCs
  - Add support for Si5342, Si5344 and Si5345 chips
  - Support custom flags in Xilinx zynq firmware
  - Various small fixes to the Xilinx clk driver
  - A single minor rounding fix for the legacy Allwinner clock support
  - A few patches from Abel Vesa as preparation of adding audiomix clock support
    on i.MX
  - A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and clk-pllv3
    drivers
  - Drop dependency on ARM64 for i.MX8M clock driver, to support aarch32 mode on
    aarch64 hardware
  - A series from Peng Fan to improve i.MX8M clock drivers, using composite
    clock for core and bus clk slice
  - Set a better parent clock for flexcan on i.MX6UL to support CiA102 defined
    bit rates
  - A couple changes for EMC frequency scaling on Tegra210
  - Support for CPU frequency scaling on Tegra20/Tegra30
  - New clk gate for CSI test pattern generator on Tegra210
  - Regression fixes for Samsung exynos542x and exynos5433 SoCs
  - Use of fallthrough; attribute for Samsung s3c24xx
  - Updates and fixup HDMI and video clocks on Meson8b
  - Fixup reset polarity on Meson8b
  - Fix GPU glitch free mux switch on Meson gx and g12
  - A minor fix for the currently unused suspend/resume handling on Renesas RZ/A1 and RZ/A2
  - Two more conversions of Renesas DT bindings to json-schema
  - Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This time around we have four lines of diff in the core framework,
  removing a function that isn't used anymore. Otherwise the main new
  thing for the common clk framework is that it is selectable in the
  Kconfig language now. Hopefully this will let clk drivers and clk
  consumers be testable on more than the architectures that support the
  clk framework. The goal is to introduce some Kunit tests for the
  framework.

  Outside of the core framework we have the usual set of various driver
  updates and non-critical fixes. The dirstat shows that the new
  Baikal-T1 driver is the largest addition this time around in terms of
  lines of code. After that the x86 (Intel), Qualcomm, and Mediatek
  drivers introduce many lines to support new or upcoming SoCs. After
  that the dirstat shows the usual suspects working on their SoC support
  by fixing minor bugs, correcting data and converting some of their DT
  bindings to YAML.

  Core:
   - Allow the COMMON_CLK config to be selectable

  New Drivers:
   - Clk driver for Baikal-T1 SoCs
   - Mediatek MT6765 clock support
   - Support for Intel Agilex clks
   - Add support for X1830 and X1000 Ingenic SoC clk controllers
   - Add support for the new Renesas RZ/G1H (R8A7742) SoC
   - Add support for Qualcomm's MSM8939 Generic Clock Controller

  Updates:
   - Support IDT VersaClock 5P49V5925
   - Bunch of updates for HSDK clock generation unit (CGU) driver
   - Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
   - Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
   - Enable supply regulators for GPU gdscs on Qualcomm SoCs
   - Add support for Si5342, Si5344 and Si5345 chips
   - Support custom flags in Xilinx zynq firmware
   - Various small fixes to the Xilinx clk driver
   - A single minor rounding fix for the legacy Allwinner clock support
   - A few patches from Abel Vesa as preparation of adding audiomix
     clock support on i.MX
   - A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and
     clk-pllv3 drivers
   - Drop dependency on ARM64 for i.MX8M clock driver, to support
     aarch32 mode on aarch64 hardware
   - A series from Peng Fan to improve i.MX8M clock drivers, using
     composite clock for core and bus clk slice
   - Set a better parent clock for flexcan on i.MX6UL to support CiA102
     defined bit rates
   - A couple changes for EMC frequency scaling on Tegra210
   - Support for CPU frequency scaling on Tegra20/Tegra30
   - New clk gate for CSI test pattern generator on Tegra210
   - Regression fixes for Samsung exynos542x and exynos5433 SoCs
   - Use of fallthrough; attribute for Samsung s3c24xx
   - Updates and fixup HDMI and video clocks on Meson8b
   - Fixup reset polarity on Meson8b
   - Fix GPU glitch free mux switch on Meson gx and g12
   - A minor fix for the currently unused suspend/resume handling on
     Renesas RZ/A1 and RZ/A2
   - Two more conversions of Renesas DT bindings to json-schema
   - Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (155 commits)
  clk: mediatek: Remove ifr{0,1}_cfg_regs structures
  clk: baikal-t1: remove redundant assignment to variable 'divider'
  clk: baikal-t1: fix spelling mistake "Uncompatible" -> "Incompatible"
  dt-bindings: clock: Add a missing include to MMP Audio Clock binding
  dt: Add bindings for IDT VersaClock 5P49V5925
  clk: vc5: Add support for IDT VersaClock 5P49V6965
  clk: Add Baikal-T1 CCU Dividers driver
  clk: Add Baikal-T1 CCU PLLs driver
  dt-bindings: clk: Add Baikal-T1 CCU Dividers binding
  dt-bindings: clk: Add Baikal-T1 CCU PLLs binding
  clk: mediatek: assign the initial value to clk_init_data of mtk_mux
  clk: mediatek: Add MT6765 clock support
  clk: mediatek: add mt6765 clock IDs
  dt-bindings: clock: mediatek: document clk bindings vcodecsys for Mediatek MT6765 SoC
  dt-bindings: clock: mediatek: document clk bindings mipi0a for Mediatek MT6765 SoC
  dt-bindings: clock: mediatek: document clk bindings for Mediatek MT6765 SoC
  CLK: HSDK: CGU: add support for 148.5MHz clock
  CLK: HSDK: CGU: support PLL bypassing
  CLK: HSDK: CGU: check if PLL is bypassed first
  clk: clk-si5341: Add support for the Si5345 series
  ...
2020-06-10 11:42:19 -07:00
Chuanhong Guo 9bd0bd2645 MIPS: ralink: drop ralink_clk_init for mt7621
ralink_clk_init is only called in arch/mips/ralink/clk.c which isn't
compiled for mt7621. And it doesn't export a proper cpu clock.
Drop this unused function.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-05-31 14:17:00 +02:00
Christophe JAILLET 3895006968 MIPS: ralink: bootrom: mark a function as __init to save some memory
'bootrom_setup()' is only called via 'postcore_initcall'.
It can be marked as __init to save a few bytes of memory.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-05-31 13:35:13 +02:00
Thomas Bogendoerfer 1fded93fb1 MIPS: ralink: Don't include objects twice
With the change of platform file inclusion object were included via
platform-y and core-y. Remove the core-y part to fix it.

Fixes: 26bff9eb49 ("MIPS: Only include the platformfile needed")
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-05-15 09:10:07 +02:00
Stephen Boyd bbd7ffdbef clk: Allow the common clk framework to be selectable
Enable build testing and configuration control of the common clk
framework so that more code coverage and testing can be done on the
common clk framework across various architectures. This also nicely
removes the requirement that architectures must select the framework
when they don't use it in architecture code.

There's one snag with doing this, and that's making sure that randconfig
builds don't select this option when some architecture or platform
implements 'struct clk' outside of the common clk framework. Introduce a
new config option 'HAVE_LEGACY_CLK' to indicate those platforms that
haven't migrated to the common clk framework and therefore shouldn't be
allowed to select this new config option. Also add a note that we hope
one day to remove this config entirely.

Based on a patch by Mark Brown <broonie@kernel.org>.

Cc: Mark Brown <broonie@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: <linux-mips@vger.kernel.org>
Cc: <linux-c6x-dev@linux-c6x.org>
Cc: <linux-m68k@lists.linux-m68k.org>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <linux-sh@vger.kernel.org>
Link: https://lore.kernel.org/r/1470915049-15249-1-git-send-email-broonie@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20200409064416.83340-8-sboyd@kernel.org
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2020-05-05 12:34:11 -07:00
Thomas Bogendoerfer f75410a406 MIPS: ralink: mt7621: Fix soc_device introduction
Depending on selected SMP config options soc_device didn't get
initialised at all. With UP config vmlinux didn't link because
of missing soc bus.

Fixes: 71b9b5e013 ("MIPS: ralink: mt7621: introduce 'soc_device' initialization")
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Tested-by: René van Dorst <opensource@vdorst.com>
2020-03-28 17:26:36 +01:00
Sergio Paracuellos 71b9b5e013 MIPS: ralink: mt7621: introduce 'soc_device' initialization
mt7621 SoC has its own 'ralink_soc_info' structure with some
information about the soc itself. Pcie controller and pcie phy
drivers for this soc which are still in staging git tree make uses
of 'soc_device_attribute' looking for revision 'E2' in order to
know if reset lines are or not inverted. This way of doing things
seems to be necessary in order to make things clean and properly.
Hence, introduce this 'soc_device' to be able to properly use those
attributes in drivers. Also set 'data' pointer points to the struct
'ralink_soc_info' to be able to export also current soc information
using this mechanism.

Cc: Paul Burton <paul.burton@mips.com>
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: john@phrozen.org
Cc: NeilBrown <neil@brown.name>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-mips@vger.kernel.org

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-23 15:44:04 +01:00
afzal mohammed ac8fd122e0 MIPS: Replace setup_irq() by request_irq()
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.

Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.

Hence replace setup_irq() by request_irq().

remove_irq() has been replaced by free_irq() as well.

There were build error's during previous version, couple of which was
reported by kbuild test robot <lkp@intel.com> of which one was reported
by Thomas Bogendoerfer <tsbogend@alpha.franken.de> as well. There were a
few more issues including build errors, those also have been fixed.

[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos

Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-05 16:47:35 +01:00
Geert Uytterhoeven 9926108f79
MIPS: ralink: Replace <linux/clk-provider.h> by <linux/of_clk.h>
The Ralink platform code is not a clock provider, and just needs to call
of_clk_init().

Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: James Hartley <james.hartley@sondrel.com>
Cc: linux-mips@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-clk@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
2020-02-19 10:37:58 -08:00
Linus Torvalds c5951e7c8e The main MIPS changes for 5.6:
- Support mremap() for the VDSO, primarily to allow CRIU to restore the
   VDSO to its checkpointed location.
 
 - Restore the MIPS32 cBPF JIT, after having reverted the enablement of
   the eBPF JIT for MIPS32 systems in the 5.5 cycle.
 
 - Improve cop0 counter synchronization behaviour whilst onlining CPUs by
   running with interrupts disabled.
 
 - Better match FPU behaviour when emulating multiply-accumulate
   instructions on pre-r6 systems that implement IEEE754-2008 style MACs.
 
 - Loongson64 kernels now build using the MIPS64r2 ISA, allowing them to
   take advantage of instructions introduced by r2.
 
 - Support for the Ingenic X1000 SoC & the really nice little CU Neo
   development board that's using it.
 
 - Support for WMAC on GARDENA Smart Gateway devices.
 
 - Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in
   preparation for introducing IP35 (Origin 3*) support.
 
 - Various Kconfig & Makefile cleanups.
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Merge tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS changes from Paul Burton:
 "Nothing too big or scary in here:

   - Support mremap() for the VDSO, primarily to allow CRIU to restore
     the VDSO to its checkpointed location.

   - Restore the MIPS32 cBPF JIT, after having reverted the enablement
     of the eBPF JIT for MIPS32 systems in the 5.5 cycle.

   - Improve cop0 counter synchronization behaviour whilst onlining CPUs
     by running with interrupts disabled.

   - Better match FPU behaviour when emulating multiply-accumulate
     instructions on pre-r6 systems that implement IEEE754-2008 style
     MACs.

   - Loongson64 kernels now build using the MIPS64r2 ISA, allowing them
     to take advantage of instructions introduced by r2.

   - Support for the Ingenic X1000 SoC & the really nice little CU Neo
     development board that's using it.

   - Support for WMAC on GARDENA Smart Gateway devices.

   - Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in
     preparation for introducing IP35 (Origin 3*) support.

   - Various Kconfig & Makefile cleanups"

* tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (60 commits)
  MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and Fuel
  MIPS: Loongson64: Disable exec hazard
  MIPS: Loongson64: Bump ISA level to MIPSR2
  MIPS: Make DIEI support as a config option
  MIPS: OCTEON: octeon-irq: fix spelling mistake "to" -> "too"
  MIPS: asm: local: add barriers for Loongson
  MIPS: Loongson64: Select mac2008 only feature
  MIPS: Add MAC2008 Support
  Revert "MIPS: Add custom serial.h with BASE_BAUD override for generic kernel"
  MIPS: sort MIPS and MIPS_GENERIC Kconfig selects alphabetically (again)
  MIPS: make CPU_HAS_LOAD_STORE_LR opt-out
  MIPS: generic: don't unconditionally select PINCTRL
  MIPS: don't explicitly select LIBFDT in Kconfig
  MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts
  MIPS: SGI-IP30: Check for valid pointer before using it
  MIPS: syscalls: fix indentation of the 'SYSNR' message
  MIPS: boot: fix typo in 'vmlinux.lzma.its' target
  MIPS: fix indentation of the 'RELOCS' message
  dt-bindings: Document loongson vendor-prefix
  MIPS: CU1000-Neo: Refresh defconfig to support HWMON and WiFi.
  ...
2020-01-31 11:28:31 -08:00
yu kuai defed0bbca
MIPS: ralink: add missing put_device in ill_acc_of_setup
If of_find_device_by_node return 0 and ill_acc_of_setup return error,
pdev don't have a corresponding object release.

Fix it by adding put_device.

Signed-off-by: yu kuai <yukuai3@huawei.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: <john@phrozen.org>
Cc: <ralf@linux-mips.org>
Cc: <jhogan@kernel.org>
Cc: <linux-mips@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: <zhengbin13@huawei.com>
Cc: <yi.zhang@huawei.com>
2020-01-09 09:40:47 -08:00
Christoph Hellwig 4bdc0d676a remove ioremap_nocache and devm_ioremap_nocache
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 09:45:59 +01:00
Sergio Paracuellos 3b2fa0c926 MIPS: ralink: enable PCI support only if driver for mt7621 SoC is selected
Some versions of SoC MT7621 have three PCI express hosts. Some boards
make use of those PCI through the staging driver mt7621-pci. Recently
PCI support has been removed from MT7621 Soc kernel configuration due
to a build error. This makes imposible to compile staging driver and
produces a regression for gnubee based boards. Enable support for PCI
again but enable it only if staging mt7621-pci driver is selected.

Fixes: c4d48cf5e2 ("MIPS: ralink: deactivate PCI support for SOC_MT7621")
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: john@phrozen.org
Cc: NeilBrown <neil@brown.name>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20191019081233.7337-1-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-14 13:09:37 +08:00
Hauke Mehrtens c4d48cf5e2
MIPS: ralink: deactivate PCI support for SOC_MT7621
The Linux does not support PCI on the SOC_MT7621, if it is selected the
Linux build runs into a compile error. Remove HAVE_PCI from the
SOC_MT7621 SoC.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: john@phrozen.org
Cc: linux-mips@vger.kernel.org
2019-09-06 08:45:03 -07:00
Stephen Boyd 322e577b02
MIPS: Remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-kernel@vger.kernel.org
2019-08-26 11:26:04 +01:00
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Greg Kroah-Hartman 4c90de4dd3
mips: ralink: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: John Crispin <john@phrozen.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
2019-01-22 11:17:20 -08:00
Linus Torvalds 47f3f4eb78 A few early MIPS fixes for 4.21:
- The Broadcom BCM63xx platform sees a fix for resetting the BCM6368
   ethernet switch, and the removal of a platform device we've never had
   a driver for.
 
 - The Alchemy platform sees a few fixes for bitrot that occurred within
   the past few cycles.
 
 - We now enable vectored interrupt support for the MediaTek MT7620 SoC,
   which makes sense since they're supported by the SoC but in this case
   also works around a bug relating to the location of exception vectors
   when using a recent version of U-Boot.
 
 - The atomic64_fetch_*_relaxed() family of functions see a fix for a
   regression in MIPS64 kernels since v4.19.
 
 - Cavium Octeon III CN7xxx systems will now disable their RGMII
   interfaces rather than attempt to enable them & warn about the lack of
   support for doing so, as they did since initial CN7xxx ethernet
   support was added in v4.7.
 
 - The Microsemi/Microchip MSCC SoCs gain a MAINTAINERS entry.
 
 - .mailmap now provides consistency for Dengcheng Zhu's name & current
   email address.
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Merge tag 'mips_fixes_4.21_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Paul Burton:
 "A few early MIPS fixes for 4.21:

   - The Broadcom BCM63xx platform sees a fix for resetting the BCM6368
     ethernet switch, and the removal of a platform device we've never
     had a driver for.

   - The Alchemy platform sees a few fixes for bitrot that occurred
     within the past few cycles.

   - We now enable vectored interrupt support for the MediaTek MT7620
     SoC, which makes sense since they're supported by the SoC but in
     this case also works around a bug relating to the location of
     exception vectors when using a recent version of U-Boot.

   - The atomic64_fetch_*_relaxed() family of functions see a fix for a
     regression in MIPS64 kernels since v4.19.

   - Cavium Octeon III CN7xxx systems will now disable their RGMII
     interfaces rather than attempt to enable them & warn about the lack
     of support for doing so, as they did since initial CN7xxx ethernet
     support was added in v4.7.

   - The Microsemi/Microchip MSCC SoCs gain a MAINTAINERS entry.

   - .mailmap now provides consistency for Dengcheng Zhu's name &
     current email address"

* tag 'mips_fixes_4.21_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: OCTEON: mark RGMII interface disabled on OCTEON III
  MIPS: Fix a R10000_LLSC_WAR logic in atomic.h
  MIPS: BCM63XX: drop unused and broken DSP platform device
  mailmap: Update name spelling and email for Dengcheng Zhu
  MIPS: ralink: Select CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8
  MAINTAINERS: Add a maintainer for MSCC MIPS SoCs
  MIPS: Alchemy: update dma masks for devboard devices
  MIPS: Alchemy: update cpu-feature-overrides
  MIPS: Alchemy: drop DB1000 IrDA support bits
  MIPS: alchemy: cpu_all_mask is forbidden for clock event devices
  MIPS: BCM63XX: fix switch core reset on BCM6368
2019-01-05 12:48:25 -08:00
Linus Torvalds 195303136f Kconfig file consolidation for v4.21
Consolidation of bus (PCI, PCMCIA, EISA, RapidIO) config entries
 by Christoph Hellwig.
 
 Currently, every architecture that wants to provide common peripheral
 busses needs to add some boilerplate code and include the right Kconfig
 files. This series instead just selects the presence (when needed) and
 then handles everything in the bus-specific Kconfig file under drivers/.
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Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kconfig file consolidation from Masahiro Yamada:
 "Consolidation of bus (PCI, PCMCIA, EISA, RapidIO) config entries by
  Christoph Hellwig.

  Currently, every architecture that wants to provide common peripheral
  busses needs to add some boilerplate code and include the right
  Kconfig files. This series instead just selects the presence (when
  needed) and then handles everything in the bus-specific Kconfig file
  under drivers/"

* tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  pcmcia: remove per-arch PCMCIA config entry
  eisa: consolidate EISA Kconfig entry in drivers/eisa
  rapidio: consolidate RAPIDIO config entry in drivers/rapidio
  pcmcia: allow PCMCIA support independent of the architecture
  PCI: consolidate the PCI_SYSCALL symbol
  PCI: consolidate the PCI_DOMAINS and PCI_DOMAINS_GENERIC config options
  PCI: consolidate PCI config entry in drivers/pci
  MIPS: remove the HT_PCI config option
2018-12-29 13:40:29 -08:00
Stefan Roese 0b15394475
MIPS: ralink: Select CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8
Testing has shown, that when using mainline U-Boot on MT7688 based
boards, the system may hang or crash while mounting the root-fs. The
main issue here is that mainline U-Boot configures EBase to a value
near the end of system memory. And with CONFIG_CPU_MIPSR2_IRQ_VI
disabled, trap_init() will not allocate a new area to place the
exception handler. The original value will be used and the handler
will be copied to this location, which might already be used by some
userspace application.

The MT7688 supports VI - its config3 register is 0x00002420, so VInt
(Bit 5) is set. But without setting CONFIG_CPU_MIPSR2_IRQ_VI this
bit will not be evaluated to result in "cpu_has_vi" being set. This
patch now selects CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8 which results
trap_init() to allocate some memory for the exception handler.

Please note that this issue was not seen with the Mediatek U-Boot
version, as it does not touch EBase (stays at default of 0x8000.0000).
This is strictly also not correct as the kernel (_text) resides
here.

Signed-off-by: Stefan Roese <sr@denx.de>
[paul.burton@mips.com: s/beeing/being/]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
2018-12-23 08:04:15 -08:00
Mathias Kresin 7d35baa4e9
MIPS: ralink: Fix mt7620 nd_sd pinmux
In case the nd_sd group is set to the sd-card function, Pins 45 + 46 are
configured as GPIOs. If they are blocked by the sd function, they can't
be used as GPIOs.

Reported-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: f576fb6a07 ("MIPS: ralink: cleanup the soc specific pinmux data")
Patchwork: https://patchwork.linux-mips.org/patch/21220/
Cc: John Crispin <john@phrozen.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v3.18+
2018-11-26 10:19:38 -08:00
Christoph Hellwig eb01d42a77 PCI: consolidate PCI config entry in drivers/pci
There is no good reason to duplicate the PCI menu in every architecture.
Instead provide a selectable HAVE_PCI symbol that indicates availability
of PCI support, and a FORCE_PCI symbol to for PCI on and the handle the
rest in drivers/pci.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 11:45:34 +09:00
Mike Rapoport 57c8a661d9 mm: remove include/linux/bootmem.h
Move remaining definitions and declarations from include/linux/bootmem.h
into include/linux/memblock.h and remove the redundant header.

The includes were replaced with the semantic patch below and then
semi-automated removal of duplicated '#include <linux/memblock.h>

@@
@@
- #include <linux/bootmem.h>
+ #include <linux/memblock.h>

[sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au
[sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au
[sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal]
  Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au
Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Serge Semin <fancer.lancer@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31 08:54:16 -07:00
Mathias Kresin 35d0179474
MIPS: ralink: Add rt3352 SPI_CS1 pinmux
The rt3352 has a pin that can be used as second spi chip select,
watchdog reset or GPIO. The pinmux setup was missing the definition of
said pin.

The pin is configured via the same bit on rt5350, so reuse the existing
macro.

Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20301/
Cc: John Crispin <john@phrozen.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
2018-08-30 13:25:00 -07:00
Rob Herring 9475e90f02
MIPS: Convert to using %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20315/
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: John Crispin <john@phrozen.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
2018-08-28 09:53:24 -07:00
Alexander Sverdlin 5c93316c8c
mips: unify prom_putchar() declarations
prom_putchar() is used centrally in early printk infrastructure therefore
at least MIPS should agree on the function return type.

[paul.burton@mips.com:
  - Include linux/types.h in asm/setup.h to gain the bool typedef before
    we start include asm/setup.h elsewhere.
  - Include asm/setup.h in all files that use or define prom_putchar().
  - Also standardise on signed rather than unsigned char argument.]

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19842/
Cc: linux-mips@linux-mips.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonas Gorski <jonas.gorski@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
2018-07-17 09:40:17 -07:00
NeilBrown a63d706ea7
MIPS: ralink: Fix booting on MT7621
Since commit 3af5a67c86 ("MIPS: Fix early CM probing") the MT7621 has
not been able to boot.

This commit caused mips_cm_probe() to be called before
mt7621.c::proc_soc_init().

prom_soc_init() has a comment explaining that mips_cm_probe() "wipes out
the bootloader config" and means that configuration registers are no
longer available. It has some code to re-enable this config.

Before this re-enable code is run, the sysc register cannot be read, so
when SYSC_REG_CHIP_NAME0 is read, a garbage value is returned and
panic() is called.

If we move the config-repair code to the top of prom_soc_init(), the
registers can be read and boot can proceed.

Very occasionally, the first register read after the reconfiguration
returns garbage, so add a call to __sync().

Fixes: 3af5a67c86 ("MIPS: Fix early CM probing")
Signed-off-by: NeilBrown <neil@brown.name>
Reviewed-by: Matt Redfearn <matt.redfearn@mips.com>
Cc: John Crispin <john@phrozen.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # 4.5+
Patchwork: https://patchwork.linux-mips.org/patch/18859/
Signed-off-by: James Hogan <jhogan@kernel.org>
2018-03-22 00:06:30 +00:00