[PATCH v4 0/8] Device Tree support for the at91sam9261ek
jjhiblot at traphandler.com
Wed Feb 12 07:35:14 EST 2014
2014-02-12 12:14 GMT+01:00 Gregory CLEMENT <gregory.clement at free-electrons.com>:
> Hi Jean-Jacques,
> On 12/02/2014 11:06, Jean-Jacques Hiblot wrote:
>> This patch set aims at bringing a device tree support for the sam9261.
>> It's mostly based on the sam9263 and sam9x5 stuff.
>> Changes since V3:
>> * Added support for the touchscreen
>> * Added support for the spi dataflash
>> * Activated the TCB by default
>> * Reworked the patch organization to reduce the number of patchs
>> * changed the default bootargs (no mem description, UBI on mtdpart 5)
>> * Changed the xlate implementation of the at91 pinctrl driver to lock the GPIOs
>> for IRQs instead of requesting them (needed for the touchscreen driver)
>> * some stylistic changes
>> Changes since V2:
>> * removed the smc driver from the serie. It'll be posted in an independent
>> serie later.
>> * removed the DM9000 support (it'll come with the smc driver)
>> * the sam9261 now supports the Common Clock Framework (CCF). Note: to enable
>> the CCF you must remove from the kernel config the platforms that don't
>> support it.
>> * Added basic DT binding for the bus matrix
>> * Added support for USB host
>> * Added support for USB gadget
>> * in dts(i), replaced interrupt-parent with interrupts-extended
>> * changed the nand partition plan (same as for the sama5d3)
>> * removed 'mem' parameter in command line
>> * re-ordered dt-nodes in ascending address order.
>> * split the lcd support patch in 2 parts (SOC and board)
>> Change since V1:
>> * changed the DT representation to use address translation and separate the
>> timings' configuration from the device properties by adding a "simple-bus"
>> inetrmediate node.
>> * moved the smc driver from drivers/bus to drivers/memmory
>> * smc driver now accepts timings in nanoseconds as well as raw register values
>> * smc driver can clip the timings if they're out of bound and dump them to the
>> * DM9000 timings are now described in nanosecs (for the virtue of example)
>> supported features are:
>> * working with the Common Clock Framework and the old at91 clock implementation
>> * dbgu
>> * lcdc
>> * usb host
>> * usb gadget,
>> * spi dataflash
>> * nand flash
>> * touchscreen
>> * leds
>> * user buttons
>> In the TODO list:
>> * dm9000 (ethernet)
>> * audio
>> * mmc
> Besides the my comment on the 1st patch, all this series
> seems pretty neat for me.
> It's worth mentioning also that audio and mmc are in the
> TODO list by lack of hardware to test it. So what I suggest
actually the audio hardware is present but seems broken on my board.
Hopefully I should get another one to test this week.
> here is to send a follow-up patch set and to ask for a
> Tested-By from people being able to test it.
> For dm9000 the issue is (again) related to an ordering problem:
> the Ethernet need an interrupt provided by the gpio driver. Unfortunately,
> the gpio driver initialization is called after the dm900 driver
>> This serie relies on the following patchs:
>> usb: at91-udc: fix irq and iomem resource retrieval
>> ARM: at91: prepare sam9 dt boards transition to common
>> Jean-Jacques Hiblot (8):
>> at91: dt: Adds support for the bus matrix declaration in the DT
>> at91: pinctrl: don't request GPIOs used for interrupts but lock them
>> as IRQ
>> at91: dt: Add at91sam9261 dt SoC support
>> at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs
>> at91: dt: sam9261: Device Tree support for the at91sam9261ek
>> at91: updated the at91_dt_defconfig with support for the ADS7846
>> ARM: at91: prepare common clk transition for sam9261 SoC
>> ARM: at91: move sam9261 SoC to common clk
>> arch/arm/boot/dts/Makefile | 2 +
>> arch/arm/boot/dts/at91sam9261.dtsi | 740 ++++++++++++++++++++++++++++++++++++
>> arch/arm/boot/dts/at91sam9261ek.dts | 204 ++++++++++
>> arch/arm/configs/at91_dt_defconfig | 2 +
>> arch/arm/mach-at91/Kconfig | 1 -
>> arch/arm/mach-at91/at91sam9261.c | 25 +-
>> arch/arm/mach-at91/setup.c | 23 ++
>> drivers/pinctrl/pinctrl-at91.c | 5 +-
>> 8 files changed, 996 insertions(+), 6 deletions(-)
>> create mode 100644 arch/arm/boot/dts/at91sam9261.dtsi
>> create mode 100644 arch/arm/boot/dts/at91sam9261ek.dts
> Gregory Clement, Free Electrons
> Kernel, drivers, real-time and embedded Linux
> development, consulting, training and support.
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