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path: root/drivers/soc/renesas/renesas-soc.c
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2024-03-26soc: renesas: Add identification support for RZ/V2H SoCLad Prabhakar1-1/+19
Add support to identify the RZ/V2H (R9A09G057) SoC. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240227232531.218159-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-01-31soc: renesas: Identify R-Car V4MDuy Nguyen1-0/+8
Add support for identifying the R-Car V4M (R8A779H0) SoC. Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/31e06d055aec1bc70c3e9a02f9268bcfc72b2204.1706194617.git.geert+renesas@glider.be
2023-12-13soc: renesas: Remove duplicate setup of soc_device_attribute.familyGeert Uytterhoeven1-4/+0
As of commit 3f84aa5ec052dba9 ("base: soc: populate machine name in soc_device_register if empty") in v6.4, soc_device_register() fills in soc_device_attribute.family when it is still empty. Hence the identical code in renesas_soc_init() doing the same can be removed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/4c5e4d0d1819028466748ed684254fec41aae816.1701696627.git.geert+renesas@glider.be
2023-09-18soc: renesas: renesas-soc: Remove blank linesClaudiu Beznea1-2/+0
Remove blank lines. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230912045157.177966-6-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-18soc: renesas: Identify RZ/G3S SoCClaudiu Beznea1-0/+13
Add support to identify the RZ/G3S (R9A08G045) SoC. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230912045157.177966-5-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-04-04soc: renesas: renesas-soc: Release 'chipid' from ioremap()Li Yang1-1/+4
Smatch reports: drivers/soc/renesas/renesas-soc.c:536 renesas_soc_init() warn: 'chipid' from ioremap() not released on lines: 475. If soc_dev_atrr allocation is failed, function renesas_soc_init() will return without releasing 'chipid' from ioremap(). Fix this by adding function iounmap(). Fixes: cb5508e47e60 ("soc: renesas: Add support for reading product revision for RZ/G2L family") Signed-off-by: Li Yang <lidaxian@hust.edu.cn> Reviewed-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230331095545.31823-1-lidaxian@hust.edu.cn Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-03-16soc: renesas: Use "#ifdef" for single-symbol definition checksGeert Uytterhoeven1-4/+4
Replace "#if defined(CONFIG_<foo>)" by "#ifdef CONFIG_<foo>" for brevity. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/6026a3fe36735f0e6a0ecb037bf7c45f42aa3daf.1678705241.git.geert+renesas@glider.be
2023-03-16soc: renesas: mark OF related data as maybe unusedKrzysztof Kozlowski1-1/+1
The driver can be compile tested with !CONFIG_OF making certain data unused. With W=1: drivers/soc/renesas/renesas-soc.c:272:34: error: ‘renesas_socs’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230312132650.352796-1-krzysztof.kozlowski@linaro.org Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-03-10soc: renesas: Remove r8a77950 archWolfram Sang1-3/+1
R-Car H3 ES1.* was only available to an internal development group and needed a lot of quirks and workarounds. These become a maintenance burden now, so our development group decided to remove upstream support and disable booting for this SoC. Public users only have ES2 onwards. Remove the architecture which describes H3 ES1.*. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230307105645.5285-6-wsa+renesas@sang-engineering.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-11-17soc: renesas: Identify RZ/V2M SoCPhil Edworthy1-0/+22
Add support for identifying the RZ/V2M (R9A09G011) SoC. Note that the SoC does not have a identification register. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> [biju: removed config changes ] Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20221116102140.852889-3-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-08-16soc: renesas: Identify RZ/Five SoCLad Prabhakar1-0/+13
Add support for identifying the (R9A07G043) RZ/Five SoC. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20220722141506.20171-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-08-16soc: renesas: Identify R-Car H3Ne-1.7GGeert Uytterhoeven1-0/+1
Add support for identifying the R-Car H3Ne-1.7G (R8A779MB) SoC. As this is a different grading of the already supported R-Car H3-N ES3.0 (R8A77951) SoC, support for it is enabled through the existing ARCH_R8A77951 configuration symbol. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/8670482178567897571edc0dfc60017453544071.1656072871.git.geert+renesas@glider.be
2022-05-05soc: renesas: R-Car V3U is R-Car Gen4Geert Uytterhoeven1-1/+1
Despite the name, R-Car V3U is the first member of the R-Car Gen4 family. Hence reflect this in the SoC Family field. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/2bbecad7b6c24c0d5c1797b3f7f0733d5ba33842.1651497066.git.geert+renesas@glider.be
2022-04-25soc: renesas: Identify R-Car V4HYoshihiro Shimoda1-0/+8
Add support for identifying the R-Car V4H (R8A779G0) SoC. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20220420084255.375700-11-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-04-04soc: renesas: Identify RZ/G2UL SoCBiju Das1-0/+13
Add support for identifying the RZ/G2UL SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20220315142644.17660-3-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-02-08soc: renesas: Add support for reading product revision for RZ/G2L familyBiju Das1-22/+33
As per RZ/G2L HW manual (Rev.1.00 Sep, 2021) DEV_ID [31:28] indicates product revision. Use this information to populate the revision info for RZ/G2L family. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20220121014117.21248-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24soc: renesas: Identify RZ/V2L SoCBiju Das1-0/+13
Add support for identifying the RZ/V2L (R9A07G054) SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20220110134659.30424-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2021-12-07soc: renesas: Identify R-Car S4-8Yoshihiro Shimoda1-0/+12
Add support for identifying the R-Car S4-8 (R8A779F0) SoC. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20211201073308.1003945-8-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2021-11-30soc: renesas: Consolidate product register handlingGeert Uytterhoeven1-59/+56
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 <geert+renesas@glider.be> Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/057721f46c7499de4133135488f0f3da7fb39265.1636570669.git.geert+renesas@glider.be
2021-09-13soc: renesas: Identify more R-Car Gen3e SoCsGeert Uytterhoeven1-0/+7
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 <geert+renesas@glider.be> Link: https://lore.kernel.org/r/ccf2206b24147b3d977e4119bbdefaedceb28644.1628766192.git.geert+renesas@glider.be
2021-07-27soc: renesas: Identify R-Car H3e-2G and M3e-2GGeert Uytterhoeven1-0/+4
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 <geert+renesas@glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/42b4578ab4739cb48ec3aed0a447fc40c34de1e5.1626708063.git.geert+renesas@glider.be
2021-06-10soc: renesas: Add support to read LSI DEVID register of RZ/G2{L,LC} SoC'sLad Prabhakar1-1/+32
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 <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20210609163717.3083-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10soc: renesas: Identify R-Car V3UYoshihiro Shimoda1-0/+8
Add support for identifying the R-Car V3U (R8A779A0) SoC. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/1599470390-29719-10-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-07-13soc: renesas: Identify RZ/G2HMarian-Cristian Rotariu1-0/+8
This patch adds support for identifying the RZ/G2H (r8a774e1) SoC. Signed-off-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/1594138692-16816-2-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-02-21soc: renesas: Remove ARCH_R8A7795Geert Uytterhoeven1-1/+1
Replace the final user of CONFIG_ARCH_R8A7795 by CONFIG_ARCH_R8A77950 || CONFIG_ARCH_R8A77951, and remove the now unused CONFIG_ARCH_R8A7795 symbol definition. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200218112449.5723-1-geert+renesas@glider.be
2019-11-01soc: renesas: Identify R-Car M3-W+Geert Uytterhoeven1-0/+3
Add support for identifying the R-Car M3-W+ (R8A77961) SoC, which shares the Product ID Number with R-Car M3-W (R8A77960), but differs in CUT Number (Ver. 3.0), and uses a different compatible value. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-5-geert+renesas@glider.be
2019-11-01soc: renesas: Add ARCH_R8A77960 for existing R-Car M3-WGeert Uytterhoeven1-1/+1
Add CONFIG_ARCH_R8A77960 as a new config symbol for R-Car M3-W (R8A77960), to replace CONFIG_ARCH_R8A7796, and avoid confusion with R-Car M3-W+ (R8A77961), which will use CONFIG_ARCH_R8A77961. Note that for now, CONFIG_ARCH_R8A7796 is retained, and just selects CONFIG_ARCH_R8A77960. This relaxes dependencies of other subsystems on the SoC configuration symbol, and provides a smooth transition path for config files through "make oldconfig". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-3-geert+renesas@glider.be
2019-11-01soc: renesas: Add missing check for non-zero product register addressGeert Uytterhoeven1-1/+1
If the DTB for a device with an RZ/A2 SoC lacks a device node for the BSID register, the ID validation code falls back to using a register at address 0x0, which leads to undefined behavior (e.g. reading back a random value). This could be fixed by letting fam_rza2.reg point to the actual BSID register. However, the hardcoded fallbacks were meant for backwards compatibility with old DTBs only, not for new SoCs. Hence fix this by validating renesas_family.reg before using it. Fixes: 175f435f44b724e3 ("soc: renesas: identify RZ/A2") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20191016143306.28995-1-geert+renesas@glider.be
2019-10-01soc: renesas: Identify RZ/G2NBiju Das1-0/+8
This patch adds support for identifying the RZ/G2N (r8a774b1) SoC. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Link: https://lore.kernel.org/r/1567675844-19247-3-git-send-email-biju.das@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-03-18soc: renesas: Identify R-Car M3-W ES1.3Takeshi Kihara1-0/+3
The Product Register of R-Car M3-W ES1.3 incorrectly identifies the SoC revision as ES2.1. Add a workaround to fix this. Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-09-12soc: renesas: Identify RZ/G2EFabrizio Castro1-0/+8
Add support for identifying the RZ/G2E (r8a774c0) SoC. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-09-12soc: renesas: convert to SPDX identifiersKuninori Morimoto1-9/+1
This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27soc: renesas: identify RZ/A2Chris Brandt1-8/+47
Add support for identifying the RZ/A2M (R7S9210) SoC. Also add support for reading the BSID register which is a different format than the PRR. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27soc: renesas: Identify RZ/G2MBiju Das1-7/+20
This patch adds support for identifying the RZ/G2M (r8a774a1) SoC. It corrects the original RZ/G SoC family name to RZ/G1 and also adds support for the new RZ/G2 SoC family. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Chris Paterson <chris.paterson2@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-04-16soc: renesas: identify R-Car E3Takeshi Kihara1-0/+8
This patch adds support for identifying the R-Car E3 (R8A77990) SoC. Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-04-16soc: renesas: Identify RZ/G1CBiju Das1-0/+8
Add support for identifying the RZ/G1C (r8a77470) SoC. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-02-21soc: renesas: Identify R-Car M3-NJacopo Mondi1-0/+8
Add support for indentifying R-Car M3-N (R8A77965) SoC. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-02-12soc: renesas: identify R-Car V3HSergei Shtylyov1-0/+8
Add support for identifying the R-Car V3H (R8A77980) SoC. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-27soc: renesas: Identify R-Car M3-W ES1.1Geert Uytterhoeven1-0/+3
The Product Register of R-Car M3-W ES1.1 incorrectly identifies the SoC revision as ES2.0. Add a workaround to fix this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-09-18soc: renesas: identify R-Car V3MSergei Shtylyov1-0/+8
Add support for identifying the R-Car V3M (R8A77970) SoC. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-07-27soc: renesas: Identify R-Car D3Geert Uytterhoeven1-0/+8
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-04-19Merge tag 'renesas-sysc-for-v4.12' of ↵Olof Johansson1-1/+1
https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers Renesas ARM Based SoC Sysc Updates for v4.12 * Add support for R-Car H3 ES2.0 * tag 'renesas-sysc-for-v4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: soc: renesas: rcar-sysc: Add support for R-Car H3 ES2.0 soc: renesas: rcar-sysc: Add support for fixing up power area tables soc: renesas: Register SoC device early base: soc: Allow early registration of a single SoC device base: soc: Let soc_device_match() return no match when called too early Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-07soc: renesas: Register SoC device earlyGeert Uytterhoeven1-1/+1
The r8a7795 SYSC driver manages PM Domains, and thus is initialized from an early_initcall(). However, this means the driver cannot check the SoC revision, as the SoC device hasn't been registered yet. Change renesas_soc_init() from a core_initcall() to an early_initcall() to fix this (renesas-soc.o is listed before rcar-sysc.o in the Makefile). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-03-13soc: renesas: Identify RZ/G1NGeert Uytterhoeven1-0/+8
Add support for identifying the RZ/G1N (r8a7744) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-03-13soc: renesas: Identify RZ/G1HGeert Uytterhoeven1-0/+8
Add support for identifying the RZ/G1H (r8a7742) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2016-11-23soc: renesas: Identify SoC and register with the SoC busGeert Uytterhoeven1-0/+257
Identify the SoC type and revision, and register this information with the SoC bus, so it is available under /sys/devices/soc0/, and can be checked where needed using soc_device_match(). Identification is done using the Product Register or Common Chip Code Register, as declared in DT (PRR only for now), or using a hardcoded fallback if missing. Example: Detected Renesas R-Car Gen2 r8a7791 ES1.0 ... # cat /sys/devices/soc0/{machine,family,soc_id,revision} Koelsch R-Car Gen2 r8a7791 ES1.0 Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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