linux-toradex.git/drivers/soc/renesas, branch v5.17-rc5

soc: renesas: rcar-rst: Add support for R-Car S4-8

2021-12-07T15:50:57+00:00

Add support for R-Car S4-8 (R8A779F0) to the R-Car RST driver.
The register map of R-Car S4-8 is the same as R-Car V3U so that
renames "V3U" and "r8a779a0" to "Gen4".

Signed-off-by: Yoshihiro Shimoda 
Link: https://lore.kernel.org/r/20211201073308.1003945-11-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven

soc: renesas: Identify R-Car S4-8

2021-12-07T15:47:54+00:00

Add support for identifying the R-Car S4-8 (R8A779F0) SoC.

Signed-off-by: Yoshihiro Shimoda 
Link: https://lore.kernel.org/r/20211201073308.1003945-8-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven

soc: renesas: r8a779f0-sysc: Add r8a779f0 support

2021-12-07T15:47:45+00:00

Add support for R-Car S4-8 (R8A779F0) SoC power areas and register
access.

Signed-off-by: Yoshihiro Shimoda 
Link: https://lore.kernel.org/r/20211201073308.1003945-7-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven

soc: renesas: rcar-gen4-sysc: Introduce R-Car Gen4 SYSC driver

2021-12-07T15:46:56+00:00

According to the official website [1], the R-Car V3U SoC is based
on the R-Car Gen4 architecture. So, introduce R-Car Gen4 SYSC
driver.

[1]
https://www.renesas.com/us/en/products/automotive-products/automotive-system-chips-socs/r-car-v3u-best-class-r-car-v3u-asil-d-system-chip-automated-driving

Signed-off-by: Yoshihiro Shimoda 
Link: https://lore.kernel.org/r/20211201073308.1003945-6-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven

soc: renesas: Consolidate product register handling

2021-11-30T08:42:00+00:00

Currently renesas_soc_init() scans the whole device tree up to three
times, to find a device node describing a product register.
Furthermore, the product register handling for the different variants is
very similar, with the major difference being the location of the
product bitfield inside the product register.

Reduce scanning to a single pass using of_find_matching_node_and_match()
instead.  Switch to a common handling of product registers, by storing
the intrinsics of each product register type in the data field of the
corresponding match entry.

Signed-off-by: Geert Uytterhoeven 
Tested-by: Lad Prabhakar 
Link: https://lore.kernel.org/r/057721f46c7499de4133135488f0f3da7fb39265.1636570669.git.geert+renesas@glider.be

soc: renesas: rcar-rst: Add support to set rproc boot address

2021-11-15T09:01:10+00:00

R-Car Gen3 SoC series has a realtime processor, the boot
address of this processor can be set thanks to CR7BAR register
of the reset module.

Export this function so that it's possible to set the boot
address from a remoteproc driver.

Also drop the __initdata qualifier on rcar_rst_base,
since we will use this address later than init time.

Signed-off-by: Julien Massot 
Link: https://lore.kernel.org/r/20211022122101.66998-1-julien.massot@iot.bzh
Signed-off-by: Geert Uytterhoeven

soc: renesas: Identify more R-Car Gen3e SoCs

2021-09-13T08:56:29+00:00

Add support for identifying the remaining R-Car Gen3e SoCs: R-Car H3e
(R8A779M0), M3e (R8A779M2), M3Ne (R8A779M4), M3Ne-2G (R8A779M5), E3e
(R8A779M6), D3e (R8A779M7), and H3Ne (R8A779M8).

As these are different gradings of the already supported R-Car Gen3
SoCs, support for them is enabled through the existing ARCH_R8A779*
configuration symbols.

Signed-off-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/ccf2206b24147b3d977e4119bbdefaedceb28644.1628766192.git.geert+renesas@glider.be

soc: renesas: Prefer memcpy() over strcpy()

2021-08-12T10:36:57+00:00

strcpy() performs no bounds checking on the destination buffer. This
could result in linear overflows beyond the end of the buffer, leading
to all kinds of misbehaviors. So, use memcpy() as a safe replacement.

This is a previous step in the path to remove the strcpy() function
entirely from the kernel.

Signed-off-by: Len Baker 
Link: https://lore.kernel.org/r/20210808125012.4715-3-len.baker@gmx.com
Signed-off-by: Geert Uytterhoeven

soc: renesas: Identify R-Car H3e-2G and M3e-2G

2021-07-27T07:27:19+00:00

Add support for identifying the R-Car H3e-2G (R8A779M1) and R-Car M3e-2G
(R8A779M3) SoCs.

As these are different gradings of the already supported R-Car H3 ES3.0
(R8A77951) and M3-W+ (R8A77961) SoCs, support for them is enabled
through the existing ARCH_R8A77951 and ARCH_R8A77961 configuration
symbols.

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Laurent Pinchart 
Link: https://lore.kernel.org/r/42b4578ab4739cb48ec3aed0a447fc40c34de1e5.1626708063.git.geert+renesas@glider.be

soc: renesas: Add support to read LSI DEVID register of RZ/G2{L,LC} SoC's

2021-06-10T13:29:03+00:00

Add support for reading the LSI DEVID register which is present in
SYSC block of RZ/G2{L,LC} SoC's.

Signed-off-by: Lad Prabhakar 
Reviewed-by: Biju Das 
Link: https://lore.kernel.org/r/20210609163717.3083-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven