From: Peter De Schrijver <pdeschrijver@nvidia.com>
To: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Russell King <linux@arm.linux.org.uk>,
Stephen Warren <swarren@wwwdotorg.org>,
Thierry Reding <thierry.reding@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Walleij <linus.walleij@linaro.org>,
Wolfram Sang <wsa@the-dreams.de>,
<linux-arm-kernel@lists.infradead.org>,
<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v5 0/5] efuse driver for Tegra
Date: Wed, 28 May 2014 15:54:32 +0300 [thread overview]
Message-ID: <1401281677-32110-1-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
Peter De Schrijver (5):
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
Documentation/ABI/testing/sysfs-driver-tegra-fuse | 201 +++++++++++++
.../devicetree/bindings/fuse/fuse-tegra.txt | 30 ++
.../devicetree/bindings/misc/nvidia,apbmisc.txt | 13 +
arch/arm/boot/dts/tegra114.dtsi | 12 +
arch/arm/boot/dts/tegra124.dtsi | 12 +
arch/arm/boot/dts/tegra20.dtsi | 12 +
arch/arm/boot/dts/tegra30.dtsi | 12 +
arch/arm/mach-tegra/Makefile | 4 -
arch/arm/mach-tegra/apbio.c | 51 ++--
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 | 2 +-
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 | 2 +
drivers/misc/fuse/Makefile | 1 +
drivers/misc/fuse/tegra/Makefile | 7 +
drivers/misc/fuse/tegra/fuse-tegra.c | 250 +++++++++++++++++
drivers/misc/fuse/tegra/fuse-tegra20.c | 134 +++++++++
drivers/misc/fuse/tegra/fuse-tegra30.c | 177 ++++++++++++
drivers/misc/fuse/tegra/fuse.h | 82 ++++++
drivers/misc/fuse/tegra/speedo-tegra114.c | 110 ++++++++
drivers/misc/fuse/tegra/speedo-tegra124.c | 180 ++++++++++++
drivers/misc/fuse/tegra/speedo-tegra20.c | 110 ++++++++
drivers/misc/fuse/tegra/speedo-tegra30.c | 294 ++++++++++++++++++++
include/linux/tegra-soc.h | 43 +++
37 files changed, 1724 insertions(+), 871 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-driver-tegra-fuse
create mode 100644 Documentation/devicetree/bindings/fuse/fuse-tegra.txt
create mode 100644 Documentation/devicetree/bindings/misc/nvidia,apbmisc.txt
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
--
1.7.7.rc0.72.g4b5ea.dirty
next reply other threads:[~2014-05-28 12:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-28 12:54 Peter De Schrijver [this message]
2014-05-28 12:54 ` [PATCH v5 1/5] ARM: tegra: export apb dma readl/writel Peter De Schrijver
2014-05-28 12:54 ` [PATCH v5 2/5] ARM: tegra: move fuse exports to tegra-soc.h Peter De Schrijver
2014-05-29 19:01 ` Stephen Warren
2014-05-28 12:54 ` [PATCH v5 3/5] misc: fuse: Add efuse driver for Tegra Peter De Schrijver
2014-05-29 19:04 ` Stephen Warren
2014-05-30 11:36 ` Peter De Schrijver
2014-05-30 16:12 ` Stephen Warren
2014-05-28 12:54 ` [PATCH v5 4/5] ARM: tegra: Add efuse and apbmisc bindings Peter De Schrijver
2014-05-29 19:13 ` Stephen Warren
2014-05-28 12:54 ` [PATCH v5 5/5] ARM: tegra: build new fuse driver in drivers/misc Peter De Schrijver
2014-05-29 19:14 ` Stephen Warren
2014-05-28 13:16 ` [PATCH v5 0/5] efuse driver for Tegra Andrew Morton
2014-05-29 19:22 ` Stephen Warren
2014-05-29 19:01 ` Stephen Warren
2014-05-30 8:23 ` Peter De Schrijver
2014-05-30 16:17 ` Stephen Warren
2014-06-02 8:27 ` Peter De Schrijver
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