Commit graph

17 commits

Author SHA1 Message Date
Lucas Stach
7ae18f3725 tegra: usb: move implementation into right directory
This moves the Tegra USB implementation into the drivers/usb/host
directory. Note that this merges the old
/arch/arm/cpu/armv7/tegra20/usb.c file into ehci-tegra.c. No code
changes, just moving stuff around.

v2: While at it also move some defines and the usb.h header file to make
usb driver usable for Tegra30.
NOTE: A lot more work is required to properly init the PHYs and PLL_U on
Tegra30, this is just to make porting easier and it does no harm here.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-03-14 11:06:41 -07:00
Lucas Stach
a63eb6bbcc tegra: usb: various small cleanups
Remove unneeded headers, function prototype and stale comment, that
doesn't match the actual codebase anymore.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-03-14 11:06:41 -07:00
Lucas Stach
fdb4b9a71c tegra: usb: move controller init into start_port
There is no need to init a USB controller before the upper layers indicate
that they are actually going to use it.

board_usb_init now only parses the device tree and sets up the common pll.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-03-14 11:06:41 -07:00
Lucas Stach
a4bdcc38c9 tegra: usb: remove unneeded function parameter
Just a dead parameter, never actually used.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-03-14 11:06:40 -07:00
Lucas Stach
b0bbab8a14 tegra: usb: make controller init functions more self contained
There is no need to pass around all those parameters. The init functions
are able to easily extract all the needed setup info on their own.

This allows to move out the controller init into ehci_hcd_init later
on, without having to save away global state for later use  and thus
bloating the file global state.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-03-14 11:06:40 -07:00
Lucas Stach
2f3ec34027 tegra: usb: set USB_PORTS_MAX to correct value
Both Tegra20 and Tegra30 have a max of 3 USB controllers.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-03-14 11:06:40 -07:00
Wei Ni
87540de3af tegra: Add SOC support for display/lcd
Add support for the LCD peripheral at the Tegra2 SOC level. A separate
LCD driver will use this functionality to configure the display.

Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Mayuresh Kulkarni:
- changes to remove bitfields and clean up for submission

Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass:
- simplify code, move clock control into here, clean-up
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-11-19 08:15:37 -07:00
Simon Glass
e1ae0d1f71 tegra: Add support for PWM
The pulse width/frequency modulation peripheral supports generating
a repeating pulse. It is useful for controlling LCD brightness.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-11-19 08:15:36 -07:00
Tom Warren
150c24936b Tegra20: Move some include files to arch-tegra for sharing with Tegra30
The move is pretty straight-forward. ap20.h and tegra20.h were renamed to ap.h and tegra.h.
Some files remain in arch-tegra20 but 'include' a file in 'arch-tegra' with #defines & structs
that will be common between T20 and T30 HW. HW-specific #defines, etc. stay in the 'arch-tegra20'
'root' file.

All boards build OK w/MAKEALL -s tegra20. Checkpatch.pl runs clean. Seaboard works OK.

Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-10-15 11:54:06 -07:00
Tom Warren
3064f32278 Tegra20: Move some code files to common directories for upcoming Tegra30 patches.
Move files that are going to be common between T20 and T30 into 'tegra-common'
subdirs in AVP (arm720t), CPU (armv7), and shared (arch/arm/cpu/.) areas. Any
files that are left behind in '/tegra20' will be copied to '/tegra30' subdirs
and modified for that SoC. The 'common' files should need only minor changes.

Include files (arch/arm/include/asm/arch-tegra/tegra20) will be done in a
follow-on patch.

Builds fine w/MAKEALL -s tegra20. Checkpatch.pl is clean.

Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-10-15 11:54:06 -07:00
Lucas Stach
6d365ea0ac tegra20: add USB ULPI init code
This adds the required code to set up a ULPI USB port. It is
mostly a port of the Linux ULPI setup code with some tweaks
added for more correctness, discovered along the way of
debugging this.

To use this both CONFIG_USB_ULPI and CONFIG_USB_ULPI_VIEWPORT
have to be set in the board configuration file.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2012-10-15 11:54:01 -07:00
Lucas Stach
a896211ff1 tegra20: port to new ehci interface
EHCI interface now supports more than one controller. Wire up our usb functions
to use this new interface.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
2012-10-15 11:54:00 -07:00
Tom Warren
29f3e3f248 Tegra: Change Tegra20 to Tegra in common code, prep for T30
Convert TEGRA20_ defines to either TEGRA_ or NV_PA_ where appropriate.
Convert tegra20_ source file and function names to tegra_, also.

Upcoming Tegra30 port will use common code/defines/names where possible.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
2012-09-10 13:01:24 -07:00
Lucas Stach
22e7394021 tegra20: usb: rework set_host_mode
This allows for two things:
- VBus GPIO may be used on other ports than the OTG one
- VBus GPIO may be low active if specified by DT

Signed-off-by: Lucas Stach <dev@lynxeye.de>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Tom Warren <TWarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-09-10 13:01:21 -07:00
Allen Martin
cca60769fc tegra20: Remove armv4t build flags
These flags were necessary when building tegra20 as a single binary
that supported ARM7TDMI and Cortex A9.  Now that the ARM7TDMI support
is split into a separate SPL, this is no longer necessary.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-09-01 14:58:22 +02:00
Allen Martin
d9e73a87a9 tegra20: move tegra20 SoC code to arch/arm/cpu/tegra20-common
In preparation for splitting out the armv4t code from tegra20, move
the tegra20 SoC code to arch/arm/cpu/tegra20-common.  This code will
be compiled armv4t for the arm7tdmi and armv7 for the cortex A9.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-09-01 14:58:21 +02:00
Allen Martin
00a2749d7b tegra20: rename tegra2 -> tegra20
This is make naming consistent with the kernel and devicetree and in
preparation of pulling out the common tegra20 code.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-09-01 14:58:21 +02:00