linux-kernel - [PATCH 0/3] mmc: sdhci-of-k1: add reset support

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Message-Id: <20251221-07-k1-sdhci-reset-v1-0-6780af7fa6e7@gentoo.org>
Date: Sun, 21 Dec 2025 16:20:25 +0800
From: Yixun Lan <dlan@...too.org>
To: Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>, 
 Philipp Zabel <p.zabel@...gutronix.de>, Paul Walmsley <pjw@...nel.org>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>
Cc: Iker Pedrosa <ikerpedrosam@...il.com>, linux-mmc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 spacemit@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 Yixun Lan <dlan@...too.org>
Subject: [PATCH 0/3] mmc: sdhci-of-k1: add reset support

This series try to add reset support explicitly to SpacemiT SDHCI controller.
Previous it works well for eMMC due to it's already initialized at brom or
bootloader phase.
  The controller has two reset lines, one connect to AXI bus which shared by
all controllers, while another one connect to individual controller separately.

Signed-off-by: Yixun Lan <dlan@...too.org>
---
Yixun Lan (3):
      dt-bindings: mmc: spacemit,sdhci: add reset support
      mmc: sdhci-of-k1: add reset support
      riscv: dts: spacemit: sdhci: add reset support

 .../devicetree/bindings/mmc/spacemit,sdhci.yaml      | 14 ++++++++++++++
 arch/riscv/boot/dts/spacemit/k1.dtsi                 |  3 +++
 drivers/mmc/host/sdhci-of-k1.c                       | 20 ++++++++++++++++++++
 3 files changed, 37 insertions(+)
---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251221-07-k1-sdhci-reset-1990d1170437

Best regards,
-- 
Yixun Lan