linux-kernel - [PATCH v2 0/3] Add basic SPI support on TH1520

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Message-ID: <20240701121355.262259-2-kanakshilledar@gmail.com>
Date: Mon,  1 Jul 2024 17:43:51 +0530
From: Kanak Shilledar <kanakshilledar@...il.com>
To: 
Cc: Kanak Shilledar <kanakshilledar@...il.com>,
	Serge Semin <fancer.lancer@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jisheng Zhang <jszhang@...nel.org>,
	Guo Ren <guoren@...nel.org>,
	Fu Wei <wefu@...hat.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	linux-spi@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: [PATCH v2 0/3] Add basic SPI support on TH1520

Implemented basic SPI support for TH1520 SoC. There are two SPIs reserved
on the LicheePi4A, one on the SPI Flash pads that are blanked out on the
back, and one on the pins. I implemented the one connected to the pad.

It is using a fixed clock of 396MHz. The address and clock frequency was
referenced from the TH1520 System Reference Manual [1].

I have tested this on the LicheePi4A.

Changes made in v2:
- Changed from single patch file to a patchset by splitting the single
commit into dt-bindings, driver and the devicetree.

[1] https://openbeagle.org/beaglev-ahead/beaglev-ahead/-/blob/main/docs/TH1520%20System%20User%20Manual.pdf

Kanak Shilledar (3):
  dt-bindings: spi: snps,dw-apb-ssi.yaml: update compatible property
  spi: dw-mmio: update dw_spi_mmio_of_match struct with thead
  riscv: dts: thead: add basic spi node

 .../devicetree/bindings/spi/snps,dw-apb-ssi.yaml |  4 ++++
 .../boot/dts/thead/th1520-beaglev-ahead.dts      |  9 +++++++++
 .../boot/dts/thead/th1520-lichee-module-4a.dtsi  |  4 ++++
 .../riscv/boot/dts/thead/th1520-lichee-pi-4a.dts |  5 +++++
 arch/riscv/boot/dts/thead/th1520.dtsi            | 16 ++++++++++++++++
 drivers/spi/spi-dw-mmio.c                        |  1 +
 6 files changed, 39 insertions(+)


base-commit: 6ba59ff4227927d3a8530fc2973b80e94b54d58f
-- 
2.45.2