clk: sifive: Allow building the driver as a module

This can reduce the kernel image size in multiplatform configurations.

Signed-off-by: Samuel Holland <[email protected]>
Link: https://lor

clk: sifive: Allow building the driver as a module

This can reduce the kernel image size in multiplatform configurations.

Signed-off-by: Samuel Holland <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>

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clk: sifive: make SiFive clk drivers depend on ARCH_ symbols

As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the
use of such symbols on other architectures, convert the SiFive clk

clk: sifive: make SiFive clk drivers depend on ARCH_ symbols

As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the
use of such symbols on other architectures, convert the SiFive clk
drivers to use the new symbol.

Signed-off-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/20230406-groovy-trustable-15853ac0a130@spud
Signed-off-by: Stephen Boyd <[email protected]>

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clk: sifive: select by default if SOC_SIFIVE

With the aim of dropping direct selects of drivers from Kconfig.socs,
default the SiFive clock drivers to the value of SOC_SIFIVE.

Signed-off-by: Conor

clk: sifive: select by default if SOC_SIFIVE

With the aim of dropping direct selects of drivers from Kconfig.socs,
default the SiFive clock drivers to the value of SOC_SIFIVE.

Signed-off-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>

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clk: sifive: Use reset-simple in prci driver for PCIe driver

We use reset-simple in this patch so that pcie driver can use
devm_reset_control_get() to get this reset data structure and use
reset_con

clk: sifive: Use reset-simple in prci driver for PCIe driver

We use reset-simple in this patch so that pcie driver can use
devm_reset_control_get() to get this reset data structure and use
reset_control_deassert() to deassert pcie_power_up_rst_n.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greentime Hu <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Philipp Zabel <[email protected]>
Acked-by: Stephen Boyd <[email protected]>

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clk: sifive: Add a driver for the SiFive FU740 PRCI IP block

Add driver code for the SiFive FU740 PRCI IP block. This IP block
handles reset and clock control for the SiFive FU740 device and
impleme

clk: sifive: Add a driver for the SiFive FU740 PRCI IP block

Add driver code for the SiFive FU740 PRCI IP block. This IP block
handles reset and clock control for the SiFive FU740 device and
implements SoC-level clock tree controls and dividers.

The link of unmatched as follow, and the U740-C000 manual would
be present in the same page as soon.
https://www.sifive.com/boards/hifive-unmatched

This driver contains bug fixes and contributions from
Henry Styles <[email protected]>
Erik Danie <[email protected]>
Pragnesh Patel <[email protected]>

Signed-off-by: Zong Li <[email protected]>
Reviewed-by: Pragnesh Patel <[email protected]>
Acked-by: Palmer Dabbelt <[email protected]>
Cc: Henry Styles <[email protected]>
Cc: Erik Danie <[email protected]>
Cc: Pragnesh Patel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[[email protected]: Include header to silence sparse]
Signed-off-by: Stephen Boyd <[email protected]>

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clk: sifive: Use common name for prci configuration

Use generic name CLK_SIFIVE_PRCI instead of CLK_SIFIVE_FU540_PRCI. This
patch is prepared for fu740 support.

Signed-off-by: Zong Li <zong.li@sifi

clk: sifive: Use common name for prci configuration

Use generic name CLK_SIFIVE_PRCI instead of CLK_SIFIVE_FU540_PRCI. This
patch is prepared for fu740 support.

Signed-off-by: Zong Li <[email protected]>
Reviewed-by: Palmer Dabbelt <[email protected]>
Acked-by: Palmer Dabbelt <[email protected]>
Reviewed-by: Pragnesh Patel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>

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clk: sifive: restrict Kconfig scope for the FU540 PRCI driver

Restrict Kconfig scope for SiFive clock and reset IP block drivers
such that they won't appear on most configurations that are unlikely

clk: sifive: restrict Kconfig scope for the FU540 PRCI driver

Restrict Kconfig scope for SiFive clock and reset IP block drivers
such that they won't appear on most configurations that are unlikely
to support them. This is based on a suggestion from Pavel Machek
<[email protected]>. Ideally this should be dependent on
CONFIG_ARCH_SIFIVE, but since that Kconfig directive does not yet
exist, add dependencies on RISCV or COMPILE_TEST for now.

Signed-off-by: Paul Walmsley <[email protected]>
Signed-off-by: Paul Walmsley <[email protected]>
Reported-by: Pavel Machek <[email protected]>
Cc: Michael Turquette <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

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clk: sifive: add a driver for the SiFive FU540 PRCI IP block

Add driver code for the SiFive FU540 PRCI IP block. This IP block
handles reset and clock control for the SiFive FU540 device and
implem

clk: sifive: add a driver for the SiFive FU540 PRCI IP block

Add driver code for the SiFive FU540 PRCI IP block. This IP block
handles reset and clock control for the SiFive FU540 device and
implements SoC-level clock tree controls and dividers.

Based on code written by Wesley Terpstra <[email protected]>:
https://github.com/riscv/riscv-linux/commit/999529edf517ed75b56659d456d221b2ee56bb60

Boot and PLL rate change were tested on a SiFive HiFive Unleashed
board.

This version includes several changes requested by Stephen Boyd
<[email protected]>.

Signed-off-by: Paul Walmsley <[email protected]>
Signed-off-by: Paul Walmsley <[email protected]>
Cc: Michael Turquette <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Wesley W. Terpstra <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Megan Wachs <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
[[email protected]: Fix some const and ARRAY_SIZE() issues, make makefile
only descend if CLK_SIFIVE=y]
Signed-off-by: Stephen Boyd <[email protected]>

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