From: Conor Dooley <conor.dooley@microchip.com> To: <linux-fpga@vger.kernel.org> Cc: <conor@kernel.org>, <conor.dooley@microchip.com>, Daire McNamara <daire.mcnamara@microchip.com>, Rob Herring <robh+dt@kernel.org>, "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>, Moritz Fischer <mdf@kernel.org>, Wu Hao <hao.wu@intel.com>, Xu Yilun <yilun.xu@intel.com>, Tom Rix <trix@redhat.com>, <linux-riscv@lists.infradead.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org> Subject: [PATCH v2 5/7] soc: microchip: mpfs: add auto-update subdev to system controller Date: Fri, 31 Mar 2023 08:18:21 +0100 [thread overview] Message-ID: <20230331071823.956087-6-conor.dooley@microchip.com> (raw) In-Reply-To: <20230331071823.956087-1-conor.dooley@microchip.com> The PolarFire SoC's system controller offers the ability to re-program the FPGA from a user application via two, related, mechanisms. In-Application Programming (IAP) is not ideal for use in Linux, as it will immediately take down the system when requested. Auto Update is preferred, as it will only take affect at device power up*, allowing the OS (and potential applications in AMP) to be shut down gracefully. * Auto Update occurs at device initialisation, which can also be triggered by device reset - possible with the v2023.02 version of the Hart Software Services (HSS) and reference design. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> --- drivers/soc/microchip/mpfs-sys-controller.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/soc/microchip/mpfs-sys-controller.c b/drivers/soc/microchip/mpfs-sys-controller.c index 1b7680e05cc0..0b94fdcc805d 100644 --- a/drivers/soc/microchip/mpfs-sys-controller.c +++ b/drivers/soc/microchip/mpfs-sys-controller.c @@ -118,7 +118,11 @@ static struct platform_device subdevs[] = { { .name = "mpfs-generic-service", .id = -1, - } + }, + { + .name = "mpfs-auto-update", + .id = -1, + }, }; static int mpfs_sys_controller_probe(struct platform_device *pdev) @@ -160,7 +164,6 @@ static int mpfs_sys_controller_probe(struct platform_device *pdev) platform_set_drvdata(pdev, sys_controller); - dev_info(&pdev->dev, "Registered MPFS system controller\n"); for (i = 0; i < ARRAY_SIZE(subdevs); i++) { subdevs[i].dev.parent = dev; @@ -168,6 +171,8 @@ static int mpfs_sys_controller_probe(struct platform_device *pdev) dev_warn(dev, "Error registering sub device %s\n", subdevs[i].name); } + dev_info(&pdev->dev, "Registered MPFS system controller\n"); + return 0; } -- 2.39.2 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Conor Dooley <conor.dooley@microchip.com> To: <linux-fpga@vger.kernel.org> Cc: <conor@kernel.org>, <conor.dooley@microchip.com>, Daire McNamara <daire.mcnamara@microchip.com>, Rob Herring <robh+dt@kernel.org>, "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>, Moritz Fischer <mdf@kernel.org>, Wu Hao <hao.wu@intel.com>, Xu Yilun <yilun.xu@intel.com>, Tom Rix <trix@redhat.com>, <linux-riscv@lists.infradead.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org> Subject: [PATCH v2 5/7] soc: microchip: mpfs: add auto-update subdev to system controller Date: Fri, 31 Mar 2023 08:18:21 +0100 [thread overview] Message-ID: <20230331071823.956087-6-conor.dooley@microchip.com> (raw) In-Reply-To: <20230331071823.956087-1-conor.dooley@microchip.com> The PolarFire SoC's system controller offers the ability to re-program the FPGA from a user application via two, related, mechanisms. In-Application Programming (IAP) is not ideal for use in Linux, as it will immediately take down the system when requested. Auto Update is preferred, as it will only take affect at device power up*, allowing the OS (and potential applications in AMP) to be shut down gracefully. * Auto Update occurs at device initialisation, which can also be triggered by device reset - possible with the v2023.02 version of the Hart Software Services (HSS) and reference design. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> --- drivers/soc/microchip/mpfs-sys-controller.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/soc/microchip/mpfs-sys-controller.c b/drivers/soc/microchip/mpfs-sys-controller.c index 1b7680e05cc0..0b94fdcc805d 100644 --- a/drivers/soc/microchip/mpfs-sys-controller.c +++ b/drivers/soc/microchip/mpfs-sys-controller.c @@ -118,7 +118,11 @@ static struct platform_device subdevs[] = { { .name = "mpfs-generic-service", .id = -1, - } + }, + { + .name = "mpfs-auto-update", + .id = -1, + }, }; static int mpfs_sys_controller_probe(struct platform_device *pdev) @@ -160,7 +164,6 @@ static int mpfs_sys_controller_probe(struct platform_device *pdev) platform_set_drvdata(pdev, sys_controller); - dev_info(&pdev->dev, "Registered MPFS system controller\n"); for (i = 0; i < ARRAY_SIZE(subdevs); i++) { subdevs[i].dev.parent = dev; @@ -168,6 +171,8 @@ static int mpfs_sys_controller_probe(struct platform_device *pdev) dev_warn(dev, "Error registering sub device %s\n", subdevs[i].name); } + dev_info(&pdev->dev, "Registered MPFS system controller\n"); + return 0; } -- 2.39.2
next prev parent reply other threads:[~2023-03-31 7:19 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-03-31 7:18 [PATCH v2 0/7] PolarFire SoC Auto Update Support Conor Dooley 2023-03-31 7:18 ` Conor Dooley 2023-03-31 7:18 ` [PATCH v2 1/7] soc: microchip: mpfs: add a prefix to rx_callback() Conor Dooley 2023-03-31 7:18 ` Conor Dooley 2023-03-31 7:18 ` [PATCH v2 2/7] dt-bindings: soc: microchip: add a property for system controller flash Conor Dooley 2023-03-31 7:18 ` Conor Dooley 2023-03-31 7:18 ` [PATCH v2 3/7] soc: microchip: mpfs: enable access to the system controller's flash Conor Dooley 2023-03-31 7:18 ` Conor Dooley 2023-03-31 7:18 ` [PATCH v2 4/7] soc: microchip: mpfs: print service status in warning message Conor Dooley 2023-03-31 7:18 ` Conor Dooley 2023-03-31 7:18 ` Conor Dooley [this message] 2023-03-31 7:18 ` [PATCH v2 5/7] soc: microchip: mpfs: add auto-update subdev to system controller Conor Dooley 2023-03-31 7:18 ` [PATCH v2 6/7] fpga: add PolarFire SoC Auto Update support Conor Dooley 2023-03-31 7:18 ` Conor Dooley 2023-04-02 10:57 ` Xu Yilun 2023-04-02 10:57 ` Xu Yilun 2023-04-11 11:51 ` Conor Dooley 2023-04-11 11:51 ` Conor Dooley 2023-04-14 12:40 ` Xu Yilun 2023-04-14 12:40 ` Xu Yilun 2023-03-31 7:18 ` [PATCH v2 7/7] riscv: dts: microchip: add the mpfs' system controller qspi & associated flash Conor Dooley 2023-03-31 7:18 ` Conor Dooley 2023-04-02 8:00 ` [PATCH v2 0/7] PolarFire SoC Auto Update Support Xu Yilun 2023-04-02 8:00 ` Xu Yilun 2023-04-02 8:23 ` Conor Dooley 2023-04-02 8:23 ` Conor Dooley 2023-04-03 19:34 ` (subset) " Conor Dooley 2023-04-03 19:34 ` Conor Dooley
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20230331071823.956087-6-conor.dooley@microchip.com \ --to=conor.dooley@microchip.com \ --cc=conor@kernel.org \ --cc=daire.mcnamara@microchip.com \ --cc=devicetree@vger.kernel.org \ --cc=hao.wu@intel.com \ --cc=krzysztof.kozlowski+dt@linaro.org \ --cc=linux-fpga@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-riscv@lists.infradead.org \ --cc=mdf@kernel.org \ --cc=robh+dt@kernel.org \ --cc=trix@redhat.com \ --cc=yilun.xu@intel.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.