Commit graph

33 commits

Author SHA1 Message Date
Stephen Warren
01a97a11db ARM: tegra: use DT bindings for GPIO naming
There are currently many places that define the list of all Tegra GPIOs;
the DT binding header and custom Tegra-specific header file gpio.h. Fix
the redundancy by replacing everything with the DT binding header file.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-05-31 09:53:56 -07:00
Tom Rini
5b8031ccb4 Add more SPDX-License-Identifier tags
In a number of places we had wordings of the GPL (or LGPL in a few
cases) license text that were split in such a way that it wasn't caught
previously.  Convert all of these to the correct SPDX-License-Identifier
tag.

Signed-off-by: Tom Rini <trini@konsulko.com>
2016-01-19 08:31:21 -05:00
Thierry Reding
aba11d4476 ARM: tegra124: Clear IDDQ when enabling PLLC
Enabling a PLL while IDDQ is high. The Linux kernel checks for this
condition and warns about it verbosely, so while this seems to work
fine, fix it up according to the programming guidelines provided in
the Tegra K1 TRM (v02p), Section 5.3.8.1 ("PLLC and PLLC4 Startup
Sequence").

Reported-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-09-16 16:11:31 -07:00
Thierry Reding
c043c0259c ARM: tegra: Implement clk_m
On currently supported SoCs, clk_m always runs at the same frequency as
the oscillator input. However newer SoC generations such as Tegra210 no
longer have that restriction. Prepare for that by separating clk_m from
the oscillator clock and allow SoC code to override the clk_m rate.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-09-16 16:10:22 -07:00
Simon Glass
057772b761 tegra: Add missing tegra124 peripherals
There are some missing entries in the tables. Add them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-06-09 09:56:14 -07:00
Simon Glass
701b7b1d2c tegra: Introduce SRAM repair on tegra124
This is required in order to avoid instability when running from caches
after the kernel starts.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-06-09 09:56:14 -07:00
Thierry Reding
79cf644e2d ARM: tegra: Enable SMMU when going non-secure
Make sure to enable the SMMU when booting the kernel in non-secure mode.
This is necessary because some of the SMMU registers are restricted to
TrustZone-secured requestors, hence the kernel wouldn't be able to turn
the SMMU on. At the same time, enable translation for all memory clients
for the same reasons. The kernel will still be able to control SMMU IOVA
translation using the per-SWGROUP enable bits.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-05-13 09:24:16 -07:00
Jan Kiszka
ffdf9f9ae0 tegra124: Add PSCI support for Tegra124
This is based on Thierry Reding's work and uses Ian Campell's
preparatory patches. It comes with full support for CPU_ON/OFF PSCI
services. The algorithm used in this version for turning CPUs on and
off was proposed by Peter De Schrijver and Thierry Reding in
http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/210881. It
consists of first enabling CPU1..3 via the PMC, just to powergate them
again with the help of the Flow Controller. Once the Flow Controller is
in place, we can leave the PMC alone while processing CPU_ON and CPU_OFF
PSCI requests.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-05-13 09:24:15 -07:00
Ian Campbell
bfb2c8d35d tegra124: Add more registers to struct mc_ctlr
I will need mc_security_cfg0/1 in a future patch and I added the rest while
debugging, so thought I might as well commit them.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Tested-by: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-05-13 09:24:14 -07:00
Simon Glass
e7e8823c7c tegra: video: support eDP displays on Tegra124 devices
Connect up the clocks and the eDP driver to make these displays work with
Tegra124-based devices.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-05-13 09:24:11 -07:00
Simon Glass
96e82a253a tegra124: clock: Add display clocks and functions
Add functions to provide access to the display clocks on Tegra124 including
setting the clock rate for an EDP display.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-05-13 09:24:09 -07:00
Simon Glass
1c82c2f60a tegra: Move the pwm into tegra-common
This is needed for tegra124 also, so make it common and add a header file
for tegra124.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-05-13 09:24:06 -07:00
Masahiro Yamada
526fcc2203 ARM: ARM720t: remove empty asm/arch/hardware.h
arch/arm/cpu/arm720t/start.S includes <asm/arch/hardware.h>,
but the hardware.h headers of ARM720T boards are all empty.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <twarren@nvidia.com>
2015-04-23 08:52:27 -04:00
Stephen Warren
89d9437356 ARM: tegra: enable MIPI PAD CTRL support for Tegra124
This allows selection between CSI and DSI_B on the MIPI pads.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-30 09:54:06 -07:00
Stephen Warren
790f7719e2 ARM: tegra: pinmux: account for different drivegroup base registers
Tegra210 starts its drive group registers at a different offset from the
APB MISC register block that other SoCs. Update the code to handle this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:01 -07:00
Stephen Warren
439f57684e ARM: tegra: pinmux: handle feature removal on newer SoCs
On some future SoCs, some of the per-drive-group features no longer
exist. Add some ifdefs to support this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:08:59 -07:00
Stephen Warren
7a28441f4d ARM: tegra: pinmux: simplify some defines
Future SoCs have a slightly different combination of pinmux options per
pin. This will be simpler to handle if we simply have one define per
option, rather than grouping various options together, in combinations
that don't align with future chips.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:08:59 -07:00
Thierry Reding
48510c089b ARM: tegra: Implement powergate support
Implement the powergate API that allows various power partitions to be
power up and down.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-12-18 13:19:20 -07:00
Thierry Reding
a723074550 ARM: tegra: Implement tegra_plle_enable()
This function is required by PCIe and SATA. This patch implements it on
Tegra20, Tegra30 and Tegra124. It isn't implemented for Tegra114 because
it doesn't support PCIe or SATA.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-12-18 13:19:20 -07:00
Masahiro Yamada
ddd960e6c4 tegra: kconfig: move board select menu and common settings
Becuase the board select menu in arch/arm/Kconfig is too big,
move the Tegra board select menu to tegra/Kconfig.

Insert the Tegra SoC select menu between the arch select and the
board select.

 Architecture select
 |-- Tegra Platform (Tegra)
     |- Tegra SoC select (Tegra20 / 30 / 114 / 124)
        |- Board select

Consolidate also common settings (CONFIG_SYS_CPU="armv7" and
CONFIG_SYS_SOC="tegra*") and always "select" CONFIG_SPL as follows:

  config TEGRA
          bool
          select SPL

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <twarren@nvidia.com>
2014-08-30 21:19:32 -04:00
Bryan Wu
df3443dfa4 ARM: tegra: Disable VPR
On Tegra114 and Tegra124 platforms, certain display-related registers cannot
be accessed unless the VPR registers are programmed.  For bootloader, we
probably don't care about VPR, so we disable it (which counts as programming
it, and allows those display-related registers to be accessed).

This patch is based on the commit 5f499646c83ba08079f3fdff6591f638a0ce4c0c
in Chromium OS U-Boot project.

Signed-off-by: Andrew Chew <achew@nvidia.com>
Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Signed-off-by: Bryan Wu <pengw@nvidia.com>
[acourbot: ensure write went through, vpr.c style changes]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <TWarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-08-18 16:57:02 -07:00
Masahiro Yamada
9f2ec3f543 spl: consolidate arch/arm/include/asm/arch-*/spl.h
arch/arm/include/asm/spl.h requires all SoCs to have
arch/arm/include/asm/arch-*/spl.h.

But many of them just define BOOT_DEVICE_* macros.

Those macros are used in the "switch (boot_device) { ... }"
statement in common/spl/spl.c.

So they should not be archtecture specific, but be described as
a simpile enumeration.

This commit merges most of arch/arm/include/asm/arch-*/spl.h
into arch/arm/include/asm/spl.h.

With a little more effort, arch-zynq/spl.h and arch-socfpga/spl.h
will be merged, while I am not sure about OMAP and Exynos.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <twarren@nvidia.com>
CC: Stefano Babic <sbabic@denx.de>
CC: Minkyu Kang <mk7.kang@samsung.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stefano Babic <sbabic@denx.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Bo Shen <voice.shen@atmel.com> [on sama5d3xek board for at91 part]
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stefano Babic <sbabic@denx.de> [applying Tim's i.MX6 patches]
Acked-by: Tom Rini <trini@ti.com>
2014-06-06 10:05:34 +02:00
Stephen Warren
4a68d3431a ARM: tegra: allow pinmux mux option not to be set by init tables
Define enum PMUX_FUNC_DEFAULT, which indicates that a table entry passed
to pinmux_config_pingrp()/pinmux_config_pingrp_table() shouldn't change
the mux option in HW.

For pins that will be used as GPIOs, the mux option is irrelevant, so we
simply don't want to define any mux option in the pinmux initialization
table.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-05-13 10:41:31 -07:00
Stephen Warren
d381294aef ARM: tegra: pack pinmux data tables tighter
Use smaller fields in the Tegra pinmux structures in order to pack the
data tables into a smaller space. This saves around 1-3KB for the SPL
and around 3-8KB for the main build of U-Boot, depending on the board,
which SoC it uses, and how many pinmux table entries there are.

In order to pack PMUX_FUNC_* into a smaller space, don't hard-code the
values of PMUX_FUNC_RSVD* to values which require 16 bits to store them,
but instead let their values be assigned automatically, so they end up
fitting into 8 bits.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:06 -07:00
Stefan Agner
8f9fd6caaf usb: tegra: combine header file
Combine the Tegra USB header file into one header file for all SoCs.
Use ifdef to account for the difference, especially Tegra20 is quite
different from newer SoCs. This avoids duplication, mainly for
Tegra30 and newer devices.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:06 -07:00
Stephen Warren
d68c942927 ARM: tegra: Tegra124 pinmux cleanup
This renames all the pinmux pins, drive groups, and functions so they
have a prefix which matches the type name. These lists are also auto-
generated using scripts that were also used to generate the kernel
pinctrl drivers. This ensures that the lists are consistent between the
two.

The entries in tegra124_pingroups[] are all updated to remove the columns
which are no longer used.

All affected code is updated to match.

There are differences in the set of drive groups. I have validated this
against the TRM. There are differences order of pin definitions in
pinmux.c; these previously had significant mismatches with the correct
order:-( I adjusted a few entries in pinmux-config-venice2.h since the
set of legal functions for some pins was updated to match the TRM.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:06 -07:00
Stephen Warren
dfb42fc95d ARM: tegra: pinmux naming consistency fixes
Clean up the naming of pinmux-related objects:
* Refer to drive groups rather than pad groups to match the Linux kernel.
* Ensure all pinmux API types are prefixed with pmux_, values (defines)
  are prefixed with PMUX_, and functions prefixed with pinmux_.
* Modify a few type names to make their content clearer.
* Minimal changes to SoC-specific .h/.c files are made so the code still
  compiles. A separate per-SoC change will be made immediately following,
  in order to keep individual patch size down.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:05 -07:00
Stephen Warren
e296995767 ARM: tegra: pinctrl: remove duplication
Much of arch/arm/cpu/tegra*-common/pinmux.c is identical. Remove the
duplication by creating pinmux-common.c for all the identical code.

This leaves:
* arch/arm/include/asm/arch-tegra*/pinmux.h defining only the names of
  the various pins/pin groups, drive groups, and mux functions.
* arch/arm/cpu/tegra*-common/pinmux.c containing only the lookup table
  stating which pin groups support which mux functions.

The code in pinmux-common.c is semantically identical to that in the
various original pinmux.c, but had some consistency and cleanup fixes
applied during migration.

I removed the definition of struct pmux_tri_ctlr, since this is different
between SoCs (especially Tegra20 vs all others), and it's much simpler to
deal with this via the new REG/MUX_REG/... defines. spl.c, warmboot.c,
and warmboot_avp.c needed updates due to this, since they previously
hijacked this struct to encode the location of some non-pinmux registers.
Now, that code simply calculates these register addresses directly using
simple and obvious math. I like this method better irrespective of the
pinmux code cleanup anyway.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:05 -07:00
Stephen Warren
07bbd48b47 ARM: tegra: prototype pinmux_init() in board.h
pinmux_init() is a board-level function, not a pinmux driver function.
Move the prototype to a board header rather than the driver header.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:05 -07:00
Stephen Warren
dd45948dd7 ARM: tegra: pinctrl: remove vddio
This field isn't used anywhere, so remove it. Note that PIN() macros are
left unchanged for now, to avoid many diffs to them; later commits will
completely rewrite them just one time.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:05 -07:00
Stephen Warren
0d2c0d5788 ARM: tegra: pinctrl: remove func_safe
This field isn't used anywhere, so remove it. Note that PIN() macros are
left unchanged for now, to avoid many diffs to them; later commits will
completely rewrite them just one time.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:04 -07:00
Stephen Warren
cd7efc2a94 ARM: tegra: move CONFIG_TEGRAnn
<asm/arch-tegra/tegra.h> needs to use CONFIG_TEGRA* to conditionalize
some definitions, since some modules moved between generations. Move
the definition of CONFIG_TEGRAnn to a header that's included earlier,
so that it's set by the time tegra.h needs to use it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-03-05 16:59:07 -07:00
Tom Warren
999c6baf79 ARM: tegra: add/edit headers for Tegra124
These headers define the Tegra124 hardware. Add them to the usual
place.

Add Tegra124 chip ID/SKU ID definitions to common headers.

There's no real HW change on Tegra124 for 90% of the toys, so it might
make sense for a future patch to unify some of the content of these
files in a common location.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-02-03 09:46:46 -07:00