linux-kernel - [PATCH v11 0/6] reset: spacemit: add K1 reset support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250613011139.1201702-1-elder@riscstar.com>
Date: Thu, 12 Jun 2025 20:11:32 -0500
From: Alex Elder <elder@...cstar.com>
To: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	mturquette@...libre.com,
	sboyd@...nel.org,
	p.zabel@...gutronix.de,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	aou@...s.berkeley.edu,
	alex@...ti.fr,
	dlan@...too.org
Cc: heylenay@....org,
	inochiama@...look.com,
	guodong@...cstar.com,
	devicetree@...r.kernel.org,
	linux-clk@...r.kernel.org,
	spacemit@...ts.linux.dev,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v11 0/6] reset: spacemit: add K1 reset support

This series adds reset controller support for the SpacemiT K1 SoC.
A SpacemiT reset controller is implemented as an auxiliary device
associated with a clock controller (CCU).  A new header file
holds definitions used by both the clock and reset drivers.

In this version several "multi-bit" resets have been redefined as
individual ones.  For example, RESET_AUDIO had a mask that included
3 bits.  Now there are 3 separate resets (one for each bit):
RESET_AUDIO_SYS; RESET_AUDIO_MCU_CORE; and RESET_AUDIO_APMU.

The reset symbols affected (their previous names) are:
    RESET_USB3_0 ->
      RESET_USB30_AHB,  RESET_USB30_VCC, RESET_USB30_PHY 
    RESET_AUDIO ->
      RESET_AUDIO_SYS, RESET_AUDIO_MCU, RESET_AUDIO_APMU
    RESET_PCIE0 ->
      RESET_PCI0_DBI, RESET_PCI0_SLV, RESET_PCI0_MSTR, RESET_PCI0_GLB
    RESET_PCIE1 ->
      RESET_PCI1_DBI, RESET_PCI1_SLV, RESET_PCI1_MSTR, RESET_PCI1_GLB
    RESET_PCIE2 ->
      RESET_PCI2_DBI, RESET_PCI2_SLV, RESET_PCI2_MSTR, RESET_PCI2_GLB

No other code has changed since v10.

All of these patches are available here:
  https://github.com/riscstar/linux/tree/outgoing/reset-v11

					-Alex

Between version 10 and version 11:
  - Rebased onto Linux v6.16-rc1
  - Redefined several "multi-bit" resets as individual ones.

Here is version 10 of this series.
  https://lore.kernel.org/lkml/20250513215345.3631593-1-elder@riscstar.com/

All other history is available via that link, so I won't reproduce
it again here.

Alex Elder (6):
  dt-bindings: soc: spacemit: define spacemit,k1-ccu resets
  soc: spacemit: create a header for clock/reset registers
  clk: spacemit: set up reset auxiliary devices
  clk: spacemit: define three reset-only CCUs
  reset: spacemit: add support for SpacemiT CCU resets
  riscv: dts: spacemit: add reset support for the K1 SoC

 .../soc/spacemit/spacemit,k1-syscon.yaml      |  29 +-
 arch/riscv/boot/dts/spacemit/k1.dtsi          |  18 ++
 drivers/clk/spacemit/Kconfig                  |   1 +
 drivers/clk/spacemit/ccu-k1.c                 | 239 +++++++-------
 drivers/reset/Kconfig                         |   9 +
 drivers/reset/Makefile                        |   1 +
 drivers/reset/reset-spacemit.c                | 304 ++++++++++++++++++
 .../dt-bindings/clock/spacemit,k1-syscon.h    | 141 ++++++++
 include/soc/spacemit/k1-syscon.h              | 160 +++++++++
 9 files changed, 775 insertions(+), 127 deletions(-)
 create mode 100644 drivers/reset/reset-spacemit.c
 create mode 100644 include/soc/spacemit/k1-syscon.h


base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
-- 
2.45.2