Commit Graph

8 Commits

Author SHA1 Message Date
Teresa Remmet 42647f9472 ARM: dts: am335x: Update elm phandle binding
The check for the "elm_id" binding had been removed.
This causes nand boot to fail on boards still using
the old binding. Update the bindings on those boards.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-08-15 09:10:39 -07:00
Roger Quadros 63015d73f3 ARM: dts: am335x: Provide NAND ready pin
On these boards NAND ready pin status is avilable over
GPMC_WAIT0 pin.

For NAND we don't use GPMC wait pin monitoring but
get the NAND Ready/Busy# status using GPIOlib.
GPMC driver provides the WAIT0 pin status over GPIOlib.

Read speed increases from 7869 KiB/ to 8875 KiB/s
and write speed was unchanged at 5100 KiB/s.

Measured using mtd_speedtest.ko on am335x-evm.

Cc: Teresa Remmet <t.remmet@phytec.de>
Cc: Ilya Ledvich <ilya@compulab.co.il>
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Rostislav Lisovy <lisovy@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-12 14:32:02 -07:00
Roger Quadros db0f68529a ARM: dts: am335x: Disable wait pin monitoring for NAND
The NAND Ready/Busy# line is connected to GPMC_WAIT0 pin and
can't be used for wait state insertion for NAND I/O read/write.
So disable read/write wait monitoring as per Reference Manual's
suggestion [1].

[1] AM335x TRM: SPRUH73L: 7.1.3.3.12.2 NAND Device-Ready Pin

Cc: Teresa Remmet <t.remmet@phytec.de>
Cc: Ilya Ledvich <ilya@compulab.co.il>
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Rostislav Lisovy <lisovy@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-26 10:32:14 -08:00
Roger Quadros 0375214838 ARM: dts: am335x: Fix NAND device nodes
Add compatible id, GPMC register resource and interrupt
resource to NAND controller nodes.

The GPMC node will provide an interrupt controller for the
NAND IRQs.

Cc: Teresa Remmet <t.remmet@phytec.de>
Cc: Ilya Ledvich <ilya@compulab.co.il>
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Rostislav Lisovy <lisovy@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-26 10:32:14 -08:00
Javier Martinez Canillas 9baa78d644 ARM: dts: am335x-phycore-som: Use AM33XX_IOPAD pinmux macro
Use the pinmux IOPAD macro to define the register absolute physical
address instead of the offset from the padconf base address. This
makes the DTS easier to read since matches the addresses listed in
the Technical Reference Manual.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 08:43:23 -08:00
Teresa Remmet c72bfb883d ARM: dts: am335x-wega: Clean up regulators
Cleaned up the regulators on the wega board. Created a simple bus,
renamed the regulators according to the schematics and added missing
regulator on wega.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Teresa Remmet 259c0c04ac ARM: dts: am335x-phycore-som: Fix mpu voltage
Fix the mpu voltage as it is set too low for the silicon
revision 2.1.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-14 12:13:38 -07:00
Teresa Remmet 52b0dcb1d1 ARM: dts: Add support for phyCORE-AM335x SoM
phyCORE-AM335x is a SoM (System on Module) containing
a AM335x SOC. The module can be connected to different
carrier boards.

Some hardware parts are configurable on the phyCORE-AM335x.
So they are disabled on default in this som dtsi file.
They will be enabled in the board dts files, when populated.

* RAM up to 1GiB
* PMIC
* NAND flash up to 1GiB
* Eth PHY on SOM: 1x RMII
* SPI NOR flash 8MiB (optional)
* i2c RTC (optional)
* i2c EEPROM 4kiB (optional)

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-21 03:57:31 -07:00