From: Peter De Schrijver <pdeschrijver@nvidia.com>
To: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Wolfram Sang <wsa@the-dreams.de>,
Linus Walleij <linus.walleij@linaro.org>,
Stefan Agner <stefan@agner.ch>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
Thierry Reding <thierry.reding@gmail.com>,
Joseph Lo <josephl@nvidia.com>,
Russell King <linux@arm.linux.org.uk>,
Pawel Moll <pawel.moll@arm.com>,
Stephen Warren <swarren@wwwdotorg.org>,
Grant Likely <grant.likely@linaro.org>,
Tomasz Figa <t.figa@samsung.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
Arnd Bergmann <arnd@arndb.de>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Tejun Heo <tj@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Alexandre Courbot <acourbot@nvidia.com>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-arm-kernel@lists.infradead.org,
Herbert Xu <herbert@gondor.apana.org.au>
Subject: [PATCH v8 0/6] efuse driver for Tegra
Date: Thu, 12 Jun 2014 18:36:34 +0300 [thread overview]
Message-ID: <1402587400-1544-1-git-send-email-pdeschrijver@nvidia.com> (raw)
This driver allows userspace to read the raw efuse data. Its userspace
interface is modelled after the sunxi_sid driver which provides similar
functionality for some Allwinner SoCs. It has been tested on
Tegra20 (ventana), Tegra30 (beaverboard), Tegra114 (dalmore) and
Tegra124 (jetson TK1).
Changes since v1:
* Add documentation for sysfs interface
* Cleanup messages
Changes since v2:
* Incorporate early fuse code
* Remove module support
* Make driver always build when Tegra platform is selected
* Add DT binding document
* Address comments on v2
Changes since v3:
* Document sysfs file format
* Added apbmisc DT node for access to the apbmisc registers
* Address comments on v3
Changes since v4:
* Provide fallback to hardcoded 0x70000800 in case the apbmisc DT node is
missing. This is exactly what the current code does and prevents a system
crash in that case due to an invalid memory access by tegra_read_chipid()
* Added tegra_fuse_readl() function for drivers to read calibration data
Changes since v5:
* Fix kernel panic when booting on Tegra20 A03 with a missing fuse DT node
* Incorporate review comments
Changes since v6:
* Add the fix when booting on Tegra20 A03 which was supposed to be in v6 but
missing
Changes since v7:
* Initialize speedo info and randomness in early boot
* Expose speedo, sku and revision related info in tegra_sku_info
* Move APB DMA into Tegra20 fuse driver and remove apbio
* Make code more complex to support systems without conforming DT
Peter De Schrijver (6):
ARM: tegra: export apb dma readl/writel
ARM: tegra: move fuse exports to tegra-soc.h
misc: fuse: Add efuse driver for Tegra
ARM: tegra: Add efuse and apbmisc bindings
ARM: tegra: build new fuse driver in drivers/misc
misc: fuse: move APB DMA into Tegra20 fuse driver
Documentation/ABI/testing/sysfs-driver-tegra-fuse | 11 +
.../bindings/fuse/nvidia,tegra20-fuse.txt | 40 +++
.../bindings/misc/nvidia,tegra20-apbmisc.txt | 13 +
arch/arm/boot/dts/tegra114.dtsi | 15 +
arch/arm/boot/dts/tegra124.dtsi | 15 +
arch/arm/boot/dts/tegra20.dtsi | 15 +
arch/arm/boot/dts/tegra30.dtsi | 15 +
arch/arm/mach-tegra/Makefile | 5 -
arch/arm/mach-tegra/apbio.c | 206 --------------
arch/arm/mach-tegra/apbio.h | 22 --
arch/arm/mach-tegra/cpuidle.c | 2 +-
arch/arm/mach-tegra/flowctrl.c | 2 +-
arch/arm/mach-tegra/fuse.c | 252 -----------------
arch/arm/mach-tegra/fuse.h | 79 ------
arch/arm/mach-tegra/hotplug.c | 2 +-
arch/arm/mach-tegra/platsmp.c | 2 +-
arch/arm/mach-tegra/pm.c | 2 +-
arch/arm/mach-tegra/pmc.c | 2 +-
arch/arm/mach-tegra/powergate.c | 2 +-
arch/arm/mach-tegra/reset-handler.S | 2 +-
arch/arm/mach-tegra/reset.c | 2 +-
arch/arm/mach-tegra/sleep-tegra30.S | 2 +-
arch/arm/mach-tegra/tegra.c | 7 +-
arch/arm/mach-tegra/tegra114_speedo.c | 104 -------
arch/arm/mach-tegra/tegra20_speedo.c | 109 --------
arch/arm/mach-tegra/tegra30_speedo.c | 292 --------------------
drivers/misc/Makefile | 1 +
drivers/misc/fuse/Makefile | 1 +
drivers/misc/fuse/tegra/Makefile | 8 +
drivers/misc/fuse/tegra/fuse-tegra.c | 154 ++++++++++
drivers/misc/fuse/tegra/fuse-tegra20.c | 214 ++++++++++++++
drivers/misc/fuse/tegra/fuse-tegra30.c | 223 +++++++++++++++
drivers/misc/fuse/tegra/fuse.h | 71 +++++
drivers/misc/fuse/tegra/speedo-tegra114.c | 109 ++++++++
drivers/misc/fuse/tegra/speedo-tegra124.c | 167 +++++++++++
drivers/misc/fuse/tegra/speedo-tegra20.c | 109 ++++++++
drivers/misc/fuse/tegra/speedo-tegra30.c | 287 +++++++++++++++++++
drivers/misc/fuse/tegra/tegra-apbmisc.c | 110 ++++++++
include/linux/tegra-soc.h | 42 +++
39 files changed, 1633 insertions(+), 1083 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-driver-tegra-fuse
create mode 100644 Documentation/devicetree/bindings/fuse/nvidia,tegra20-fuse.txt
create mode 100644 Documentation/devicetree/bindings/misc/nvidia,tegra20-apbmisc.txt
delete mode 100644 arch/arm/mach-tegra/apbio.c
delete mode 100644 arch/arm/mach-tegra/apbio.h
delete mode 100644 arch/arm/mach-tegra/fuse.c
delete mode 100644 arch/arm/mach-tegra/fuse.h
delete mode 100644 arch/arm/mach-tegra/tegra114_speedo.c
delete mode 100644 arch/arm/mach-tegra/tegra20_speedo.c
delete mode 100644 arch/arm/mach-tegra/tegra30_speedo.c
create mode 100644 drivers/misc/fuse/Makefile
create mode 100644 drivers/misc/fuse/tegra/Makefile
create mode 100644 drivers/misc/fuse/tegra/fuse-tegra.c
create mode 100644 drivers/misc/fuse/tegra/fuse-tegra20.c
create mode 100644 drivers/misc/fuse/tegra/fuse-tegra30.c
create mode 100644 drivers/misc/fuse/tegra/fuse.h
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra114.c
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra124.c
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra20.c
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra30.c
create mode 100644 drivers/misc/fuse/tegra/tegra-apbmisc.c
--
1.7.7.rc0.72.g4b5ea.dirty
WARNING: multiple messages have this Message-ID (diff)
From: pdeschrijver@nvidia.com (Peter De Schrijver)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 0/6] efuse driver for Tegra
Date: Thu, 12 Jun 2014 18:36:34 +0300 [thread overview]
Message-ID: <1402587400-1544-1-git-send-email-pdeschrijver@nvidia.com> (raw)
This driver allows userspace to read the raw efuse data. Its userspace
interface is modelled after the sunxi_sid driver which provides similar
functionality for some Allwinner SoCs. It has been tested on
Tegra20 (ventana), Tegra30 (beaverboard), Tegra114 (dalmore) and
Tegra124 (jetson TK1).
Changes since v1:
* Add documentation for sysfs interface
* Cleanup messages
Changes since v2:
* Incorporate early fuse code
* Remove module support
* Make driver always build when Tegra platform is selected
* Add DT binding document
* Address comments on v2
Changes since v3:
* Document sysfs file format
* Added apbmisc DT node for access to the apbmisc registers
* Address comments on v3
Changes since v4:
* Provide fallback to hardcoded 0x70000800 in case the apbmisc DT node is
missing. This is exactly what the current code does and prevents a system
crash in that case due to an invalid memory access by tegra_read_chipid()
* Added tegra_fuse_readl() function for drivers to read calibration data
Changes since v5:
* Fix kernel panic when booting on Tegra20 A03 with a missing fuse DT node
* Incorporate review comments
Changes since v6:
* Add the fix when booting on Tegra20 A03 which was supposed to be in v6 but
missing
Changes since v7:
* Initialize speedo info and randomness in early boot
* Expose speedo, sku and revision related info in tegra_sku_info
* Move APB DMA into Tegra20 fuse driver and remove apbio
* Make code more complex to support systems without conforming DT
Peter De Schrijver (6):
ARM: tegra: export apb dma readl/writel
ARM: tegra: move fuse exports to tegra-soc.h
misc: fuse: Add efuse driver for Tegra
ARM: tegra: Add efuse and apbmisc bindings
ARM: tegra: build new fuse driver in drivers/misc
misc: fuse: move APB DMA into Tegra20 fuse driver
Documentation/ABI/testing/sysfs-driver-tegra-fuse | 11 +
.../bindings/fuse/nvidia,tegra20-fuse.txt | 40 +++
.../bindings/misc/nvidia,tegra20-apbmisc.txt | 13 +
arch/arm/boot/dts/tegra114.dtsi | 15 +
arch/arm/boot/dts/tegra124.dtsi | 15 +
arch/arm/boot/dts/tegra20.dtsi | 15 +
arch/arm/boot/dts/tegra30.dtsi | 15 +
arch/arm/mach-tegra/Makefile | 5 -
arch/arm/mach-tegra/apbio.c | 206 --------------
arch/arm/mach-tegra/apbio.h | 22 --
arch/arm/mach-tegra/cpuidle.c | 2 +-
arch/arm/mach-tegra/flowctrl.c | 2 +-
arch/arm/mach-tegra/fuse.c | 252 -----------------
arch/arm/mach-tegra/fuse.h | 79 ------
arch/arm/mach-tegra/hotplug.c | 2 +-
arch/arm/mach-tegra/platsmp.c | 2 +-
arch/arm/mach-tegra/pm.c | 2 +-
arch/arm/mach-tegra/pmc.c | 2 +-
arch/arm/mach-tegra/powergate.c | 2 +-
arch/arm/mach-tegra/reset-handler.S | 2 +-
arch/arm/mach-tegra/reset.c | 2 +-
arch/arm/mach-tegra/sleep-tegra30.S | 2 +-
arch/arm/mach-tegra/tegra.c | 7 +-
arch/arm/mach-tegra/tegra114_speedo.c | 104 -------
arch/arm/mach-tegra/tegra20_speedo.c | 109 --------
arch/arm/mach-tegra/tegra30_speedo.c | 292 --------------------
drivers/misc/Makefile | 1 +
drivers/misc/fuse/Makefile | 1 +
drivers/misc/fuse/tegra/Makefile | 8 +
drivers/misc/fuse/tegra/fuse-tegra.c | 154 ++++++++++
drivers/misc/fuse/tegra/fuse-tegra20.c | 214 ++++++++++++++
drivers/misc/fuse/tegra/fuse-tegra30.c | 223 +++++++++++++++
drivers/misc/fuse/tegra/fuse.h | 71 +++++
drivers/misc/fuse/tegra/speedo-tegra114.c | 109 ++++++++
drivers/misc/fuse/tegra/speedo-tegra124.c | 167 +++++++++++
drivers/misc/fuse/tegra/speedo-tegra20.c | 109 ++++++++
drivers/misc/fuse/tegra/speedo-tegra30.c | 287 +++++++++++++++++++
drivers/misc/fuse/tegra/tegra-apbmisc.c | 110 ++++++++
include/linux/tegra-soc.h | 42 +++
39 files changed, 1633 insertions(+), 1083 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-driver-tegra-fuse
create mode 100644 Documentation/devicetree/bindings/fuse/nvidia,tegra20-fuse.txt
create mode 100644 Documentation/devicetree/bindings/misc/nvidia,tegra20-apbmisc.txt
delete mode 100644 arch/arm/mach-tegra/apbio.c
delete mode 100644 arch/arm/mach-tegra/apbio.h
delete mode 100644 arch/arm/mach-tegra/fuse.c
delete mode 100644 arch/arm/mach-tegra/fuse.h
delete mode 100644 arch/arm/mach-tegra/tegra114_speedo.c
delete mode 100644 arch/arm/mach-tegra/tegra20_speedo.c
delete mode 100644 arch/arm/mach-tegra/tegra30_speedo.c
create mode 100644 drivers/misc/fuse/Makefile
create mode 100644 drivers/misc/fuse/tegra/Makefile
create mode 100644 drivers/misc/fuse/tegra/fuse-tegra.c
create mode 100644 drivers/misc/fuse/tegra/fuse-tegra20.c
create mode 100644 drivers/misc/fuse/tegra/fuse-tegra30.c
create mode 100644 drivers/misc/fuse/tegra/fuse.h
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra114.c
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra124.c
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra20.c
create mode 100644 drivers/misc/fuse/tegra/speedo-tegra30.c
create mode 100644 drivers/misc/fuse/tegra/tegra-apbmisc.c
--
1.7.7.rc0.72.g4b5ea.dirty
next reply other threads:[~2014-06-12 15:36 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-12 15:36 Peter De Schrijver [this message]
2014-06-12 15:36 ` [PATCH v8 0/6] efuse driver for Tegra Peter De Schrijver
[not found] ` <1402587400-1544-1-git-send-email-pdeschrijver-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-06-12 15:36 ` [PATCH v8 1/6] ARM: tegra: export apb dma readl/writel Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` [PATCH v8 2/6] ARM: tegra: move fuse exports to tegra-soc.h Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` [PATCH v8 3/6] misc: fuse: Add efuse driver for Tegra Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` [PATCH v8 4/6] ARM: tegra: Add efuse and apbmisc bindings Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` [PATCH v8 5/6] ARM: tegra: build new fuse driver in drivers/misc Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` [PATCH v8 6/6] misc: fuse: move APB DMA into Tegra20 fuse driver Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 15:36 ` Peter De Schrijver
2014-06-12 22:17 ` [PATCH v8 0/6] efuse driver for Tegra Stephen Warren
2014-06-12 22:17 ` Stephen Warren
2014-06-13 7:23 ` Peter De Schrijver
2014-06-13 7:23 ` Peter De Schrijver
2014-06-13 8:00 ` Peter De Schrijver
2014-06-13 8:00 ` Peter De Schrijver
2014-06-13 16:38 ` Stephen Warren
2014-06-13 16:38 ` Stephen Warren
2014-06-16 18:42 ` Stephen Warren
2014-06-16 18:42 ` Stephen Warren
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