[v4,0/4] clk: add driver for the SiFive FU740

Message

Zong Li Nov. 11, 2020, 10:06 a.m. UTC

Add a driver for the SiFive FU740 PRCI IP block, which handles more
clocks than FU540. These patches also refactor the original
implementation by spliting the dependent-code of fu540 and fu740
respectively. In v3 and v4 patch set, it fix the wrong clk enable bit
field which reported by Pragnesh.

Changed in v4:
 - Fix the wrong enable bit field shift for FU540 and FU740.

Changed in v3:
 - Fix the wrong enable bit field shift for FU740.

Changed in v2:
 - Remove the macro definition for __prci_clock_array.
 - Indicate the functional changes in commit message.
 - Using option -M and -C to create patches.
 - Rebase code to kernel v5.10-rc3.

Zong Li (4):
  clk: sifive: Extract prci core to common base
  clk: sifive: Use common name for prci configuration
  clk: sifive: Add a driver for the SiFive FU740 PRCI IP block
  clk: sifive: Fix the wrong bit field shift

 arch/riscv/Kconfig.socs                       |   2 +-
 drivers/clk/sifive/Kconfig                    |   8 +-
 drivers/clk/sifive/Makefile                   |   5 +-
 drivers/clk/sifive/fu540-prci.c               | 586 +-----------------
 drivers/clk/sifive/fu540-prci.h               |  21 +
 drivers/clk/sifive/fu740-prci.c               | 122 ++++
 drivers/clk/sifive/fu740-prci.h               |  21 +
 .../sifive/{fu540-prci.c => sifive-prci.c}    | 499 ++++++---------
 drivers/clk/sifive/sifive-prci.h              | 289 +++++++++
 include/dt-bindings/clock/sifive-fu740-prci.h |  23 +
 10 files changed, 703 insertions(+), 873 deletions(-)
 create mode 100644 drivers/clk/sifive/fu540-prci.h
 create mode 100644 drivers/clk/sifive/fu740-prci.c
 create mode 100644 drivers/clk/sifive/fu740-prci.h
 copy drivers/clk/sifive/{fu540-prci.c => sifive-prci.c} (45%)
 create mode 100644 drivers/clk/sifive/sifive-prci.h
 create mode 100644 include/dt-bindings/clock/sifive-fu740-prci.h