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Message-Id: <20241001-pxa1908-lkml-v13-0-6b9a7f64f9ae@skole.hr>
Date: Tue, 01 Oct 2024 16:37:30 +0200
From: Duje Mihanović via B4 Relay <devnull+duje.mihanovic.skole.hr@...nel.org>
To: Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Linus Walleij <linus.walleij@...aro.org>, 
 Rob Herring <robh+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
 Tony Lindgren <tony@...mide.com>, 
 Haojian Zhuang <haojian.zhuang@...aro.org>, 
 Duje Mihanović <duje.mihanovic@...le.hr>, 
 Lubomir Rintel <lkundrak@...sk>, Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht, 
 Karel Balej <balejk@...fyz.cz>, David Wronek <david@...nlining.org>, 
 linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 Conor Dooley <conor.dooley@...rochip.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v13 00/12] Initial Marvell PXA1908 support

Hello,

This series adds initial support for the Marvell PXA1908 SoC and
"samsung,coreprimevelte", a smartphone using the SoC.

USB works and the phone can boot a rootfs from an SD card, but there are
some warnings in the dmesg:

During SMP initialization:
[    0.006519] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU1: 0x00000000000000
[    0.006542] CPU features: Unsupported CPU feature variation detected.
[    0.006589] CPU1: Booted secondary processor 0x0000000001 [0x410fd032]
[    0.010710] Detected VIPT I-cache on CPU2
[    0.010716] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU2: 0x00000000000000
[    0.010758] CPU2: Booted secondary processor 0x0000000002 [0x410fd032]
[    0.014849] Detected VIPT I-cache on CPU3
[    0.014855] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU3: 0x00000000000000
[    0.014895] CPU3: Booted secondary processor 0x0000000003 [0x410fd032]

SMMU probing fails:
[    0.101798] arm-smmu c0010000.iommu: probing hardware configuration...
[    0.101809] arm-smmu c0010000.iommu: SMMUv1 with:
[    0.101816] arm-smmu c0010000.iommu:         no translation support!

A 3.14 based Marvell tree is available on GitHub
acorn-marvell/brillo_pxa_kernel, and a Samsung one on GitHub
CoderCharmander/g361f-kernel.

Andreas Färber attempted to upstream support for this SoC in 2017:
https://lore.kernel.org/lkml/20170222022929.10540-1-afaerber@suse.de/

Signed-off-by: Duje Mihanović <duje.mihanovic@...le.hr>

Changes in v13:
- Better describe the hardware in bindings/arm commit message
- Rebase on v6.12-rc1
- Link to v12: https://lore.kernel.org/r/20240823-pxa1908-lkml-v12-0-cc3ada51beb0@skole.hr

Changes in v12:
- Rebase on v6.11-rc4
- Fix schmitt properties in accordance with 78d8815031fb ("dt-bindings: pinctrl: pinctrl-single: fix schmitt related properties")
- Drop a few redundant includes in clock drivers
- Link to v11: https://lore.kernel.org/r/20240730-pxa1908-lkml-v11-0-21dbb3e28793@skole.hr

Changes in v11:
- Rebase on v6.11-rc1 (conflict with DTS Makefile), no changes
- Link to v10: https://lore.kernel.org/r/20240424-pxa1908-lkml-v10-0-36cdfb5841f9@skole.hr

Changes in v10:
- Update trailers
- Rebase on v6.9-rc5
- Clock driver changes:
  - Add a couple of forgotten clocks in APBC
    - The clocks are thermal_clk, ipc_clk, ssp0_clk, ssp2_clk and swjtag
    - The IDs and register offsets were already present, but I forgot to
      actually register them
  - Split each controller block into own file
  - Drop unneeded -of in clock driver filenames
  - Simplify struct pxa1908_clk_unit
  - Convert to platform driver
  - Add module metadata
- DTS changes:
  - Properly name pinctrl nodes
  - Drop pinctrl #size-cells, #address-cells, ranges and #gpio-size-cells
  - Fix pinctrl input-schmitt configuration
- Link to v9: https://lore.kernel.org/20240402-pxa1908-lkml-v9-0-25a003e83c6f@skole.hr

Changes in v9:
- Update trailers and rebase on v6.9-rc2, no changes
- Link to v8: https://lore.kernel.org/20240110-pxa1908-lkml-v8-0-fea768a59474@skole.hr

Changes in v8:
- Drop SSPA patch
- Drop broken-cd from eMMC node
- Specify S-Boot hardcoded initramfs location in device tree
- Add ARM PMU node
- Correct inverted modem memory base and size
- Update trailers
- Rebase on next-20240110
- Link to v7: https://lore.kernel.org/20231102-pxa1908-lkml-v7-0-cabb1a0cb52b@skole.hr
  and https://lore.kernel.org/20231102152033.5511-1-duje.mihanovic@skole.hr

Changes in v7:
- Suppress SND_MMP_SOC_SSPA on ARM64
- Update trailers
- Rebase on v6.6-rc7
- Link to v6: https://lore.kernel.org/r/20231010-pxa1908-lkml-v6-0-b2fe09240cf8@skole.hr

Changes in v6:
- Address maintainer comments:
  - Add "marvell,pxa1908-padconf" binding to pinctrl-single driver
- Drop GPIO patch as it's been pulled
- Update trailers
- Rebase on v6.6-rc5
- Link to v5: https://lore.kernel.org/r/20230812-pxa1908-lkml-v5-0-a5d51937ee34@skole.hr

Changes in v5:
- Address maintainer comments:
  - Move *_NR_CLKS to clock driver from dt binding file
- Allocate correct number of clocks for each block instead of blindly
  allocating 50 for each
- Link to v4: https://lore.kernel.org/r/20230807-pxa1908-lkml-v4-0-cb387d73b452@skole.hr

Changes in v4:
- Address maintainer comments:
  - Relicense clock binding file to BSD-2
- Add pinctrl-names to SD card node
- Add vgic registers to GIC node
- Rebase on v6.5-rc5
- Link to v3: https://lore.kernel.org/r/20230804-pxa1908-lkml-v3-0-8e48fca37099@skole.hr

Changes in v3:
- Address maintainer comments:
  - Drop GPIO dynamic allocation patch
  - Move clock register offsets into driver (instead of bindings file)
  - Add missing Tested-by trailer to u32_fract patch
  - Move SoC binding to arm/mrvl/mrvl.yaml
- Add serial0 alias and stdout-path to board dts to enable UART
  debugging
- Rebase on v6.5-rc4
- Link to v2: https://lore.kernel.org/r/20230727162909.6031-1-duje.mihanovic@skole.hr

Changes in v2:
- Remove earlycon patch as it's been merged into tty-next
- Address maintainer comments:
  - Clarify GPIO regressions on older PXA platforms
  - Add Fixes tag to commit disabling GPIO pinctrl calls for this SoC
  - Add missing includes to clock driver
  - Clock driver uses HZ_PER_MHZ, u32_fract and GENMASK
  - Dual license clock bindings
  - Change clock IDs to decimal
  - Fix underscores in dt node names
  - Move chosen node to top of board dts
  - Clean up documentation
  - Reorder commits
  - Drop pxa,rev-id
- Rename muic-i2c to i2c-muic
- Reword some commits
- Move framebuffer node to chosen
- Add aliases for mmc nodes
- Rebase on v6.5-rc3
- Link to v1: https://lore.kernel.org/r/20230721210042.21535-1-duje.mihanovic@skole.hr

---
Andy Shevchenko (1):
      clk: mmp: Switch to use struct u32_fract instead of custom one

Duje Mihanović (11):
      dt-bindings: pinctrl: pinctrl-single: add marvell,pxa1908-padconf compatible
      pinctrl: single: add marvell,pxa1908-padconf compatible
      dt-bindings: clock: Add Marvell PXA1908 clock bindings
      clk: mmp: Add Marvell PXA1908 APBC driver
      clk: mmp: Add Marvell PXA1908 APBCP driver
      clk: mmp: Add Marvell PXA1908 APMU driver
      clk: mmp: Add Marvell PXA1908 MPMU driver
      dt-bindings: marvell: Document PXA1908 SoC and samsung,coreprimevelte
      arm64: Kconfig.platforms: Add config for Marvell PXA1908 platform
      arm64: dts: Add DTS for Marvell PXA1908 and samsung,coreprimevelte
      MAINTAINERS: add myself as Marvell PXA1908 maintainer

 .../devicetree/bindings/arm/mrvl/mrvl.yaml         |   5 +
 .../devicetree/bindings/clock/marvell,pxa1908.yaml |  48 +++
 .../bindings/pinctrl/pinctrl-single.yaml           |   4 +
 MAINTAINERS                                        |   9 +
 arch/arm64/Kconfig.platforms                       |   8 +
 arch/arm64/boot/dts/marvell/Makefile               |   3 +
 .../dts/marvell/pxa1908-samsung-coreprimevelte.dts | 336 +++++++++++++++++++++
 arch/arm64/boot/dts/marvell/pxa1908.dtsi           | 300 ++++++++++++++++++
 drivers/clk/mmp/Makefile                           |   2 +-
 drivers/clk/mmp/clk-frac.c                         |  57 ++--
 drivers/clk/mmp/clk-of-mmp2.c                      |  26 +-
 drivers/clk/mmp/clk-of-pxa168.c                    |   4 +-
 drivers/clk/mmp/clk-of-pxa1928.c                   |   6 +-
 drivers/clk/mmp/clk-of-pxa910.c                    |   4 +-
 drivers/clk/mmp/clk-pxa1908-apbc.c                 | 130 ++++++++
 drivers/clk/mmp/clk-pxa1908-apbcp.c                |  82 +++++
 drivers/clk/mmp/clk-pxa1908-apmu.c                 | 121 ++++++++
 drivers/clk/mmp/clk-pxa1908-mpmu.c                 | 112 +++++++
 drivers/clk/mmp/clk.h                              |  10 +-
 drivers/pinctrl/pinctrl-single.c                   |   1 +
 include/dt-bindings/clock/marvell,pxa1908.h        |  88 ++++++
 21 files changed, 1299 insertions(+), 57 deletions(-)
---
base-commit: 9852d85ec9d492ebef56dc5f229416c925758edc
change-id: 20230803-pxa1908-lkml-6830e8da45c7

Best regards,
-- 
Duje Mihanović <duje.mihanovic@...le.hr>



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