4 Commits

Author SHA1 Message Date
Michal Simek
81f3a665ab common: Convert *.c/h from UTF-8 to ASCII enconfing
Convert UTF-8 chars to ASCII in cases where make sense. No Copyright or
names are converted.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Marek Behún <kabel@kernel.org>
2024-04-22 11:01:48 -06:00
Paul Barker
aecd69879d clk: renesas: Confirm all clock & reset changes on RZ/G2L
When enabling/disabling a clock or reset signal, confirm that the change
has completed before returning from the function. A somewhat arbitrary
100ms timeout is defined to ensure that the system doesn't lock up in
the case of an error.

Since we need to dynamically determine if we're waiting for a 0 bit or a
1 bit, it's easier to use wait_for_bit_32() than readl_poll_timeout().

This change is needed for reliable initialization of the I2C driver
which is added in a following patch.

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2024-02-28 18:42:27 +01:00
Paul Barker
32c048bd1d clk: rzg2l: Drop <common.h>
In line with changes elsewhere, drop inclusion of the common header.

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
2023-11-02 11:30:18 +01:00
Paul Barker
1918ff5c95 clk: renesas: Add RZ/G2L & RZ/G2LC CPG driver
This driver provides clock and reset control for the Renesas R9A07G044L
(RZ/G2L) and R9A07G044C (RZ/G2LC) SoC. It consists of two parts:

* driver code which is applicable to all SoCs in the RZ/G2L family.

* static data describing the clocks and resets which are specific to the
  R9A07G044{L,C} SoCs. The identifier r9a07g044 (without a final letter)
  is used to indicate that both SoCs are supported.

clk_set_rate() and clk_get_rate() are implemented only for the clocks
that are actually used in u-boot.

The CPG driver is marked with DM_FLAG_PRE_RELOC to ensure that its bind
function is called before the SCIF (serial port) driver is probed. This
is required so that we can de-assert the relevant reset signal during
the serial driver probe function.

This patch is based on the corresponding Linux v6.5 driver
(commit 52e12027d50affbf60c6c9c64db8017391b0c22e).

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2023-10-16 15:46:18 +02:00