Commit Graph

29163 Commits

Author SHA1 Message Date
Sonic Zhang
d227922150 net: Support DMA threshold mode in DWMAC driver
- DMA threshold mode can be selected in board config head file.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
2015-03-05 11:17:53 -05:00
Sonic Zhang
2ddaf13bd2 net: configure DWMAC DMA by default AXI burst length
Board can define its own AXI burst length to improve DWMAC DMA performance.

v2-changes:
- Avoid write burst len register when the Macro is not defined.

v3-changes:
- Add axi_bus register member to struct eth_dma_regs.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-03-05 11:17:53 -05:00
Kim Phillips
a32ab4d910 scripts/checkstack.pl: update to get AArch64 port from Linux
Bring checkstack.pl up to date from its upstream Linux development.
Effectively, the following linux commits:

208ad00 checkstack.pl: port to AArch64
fda9f99 scripts/checkstack.pl: automatically handle 32-bit and 64-bit mode for ARCH=x86
7eb6e34 kbuild: trivial - remove trailing empty lines
690998b scripts/checkstack.pl: Add metag support

Reported-by: York Sun <yorksun@freescale.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2015-03-05 11:17:53 -05:00
Rob Herring
0c7e8d1317 gpt: support random UUIDs without setting environment variables
Currently, an environment variable must be used to store the randomly
generated UUID for each partition. This is not necessary, so make storing
the UUID optional. Now passing uuid_disk and uuid are optional when random
UUIDs are enabled.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
2015-03-05 11:17:53 -05:00
Rob Herring
a150e6c9df gpt: fix error reporting on partition table write failures
The gpt command always reports success even if writing the partition table
failed. Propagate the return value of gpt_restore so we get proper status
reported.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Przemyslaw Marczak <p.marczak@samsung.com>
2015-03-05 11:17:53 -05:00
Heiko Schocher
694cc87b76 arm, da8xx: convert ipam390 board to generic board support
enable generic board support for the ipam390 board.

Signed-off-by: Heiko Schocher <hs@denx.de>
2015-03-05 10:08:13 -05:00
Stefano Babic
9b5b60a05c Merge branch 'master' of git://git.denx.de/u-boot 2015-03-05 16:05:10 +01:00
Heiko Schocher
d9aa019784 travis.yml: some adaptions
- adapt to build with eldk-5.4
- add more targets for building with buildman:
  - freescale -x arm,m68k,aarch64
  - arm1136
  - arm1176
  - arm720t
  - arm920t
  - davinci
  - kirkwood

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Roger Meier <r.meier@siemens.com>
2015-03-05 09:25:07 -05:00
Marcel Ziswiler
901f79e4de arm: pxa: introducing cpuinfo display for marvell pxa270m
According to table 2-3 on page 87 of Marvell's latest PXA270
Specification Update Rev. I from 2010.04.19 [1] there exists a breed of
chips with a new CPU ID for PXA270M A1 stepping which our latest
Colibri PXA270 V2.4A modules actually have assembled. This patch helps
in correctly identifying those chips upon boot as well which then looks
as follows:

CPU: Marvell PXA27xM rev. A1

[1] http://www.marvell.com/application-processors/pxa-family/assets/pxa_27x_spec_update.pdf

Acked-by: Marek Vasut <marex@denx.de>
2015-03-05 09:24:10 -05:00
Nikolaos Pasaloukos
41ffb45c35 kconfig: common: Fix memtest bool name
Fix the name appearing in menuconfig for memtest command

Signed-off-by: Nikolaos Pasaloukos <Nikolaos.Pasaloukos@imgtec.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com
2015-03-05 09:23:39 -05:00
Stefano Babic
642b6d7c16 woodburn: Convert to generic board
Boards need to select CONFIG_SYS_GENERIC_BOARD in order to
prevent removal from the project.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2015-03-05 09:23:19 -05:00
Stefano Babic
e71f9d3de4 mx35pdk: Convert to generic board
Boards need to select CONFIG_SYS_GENERIC_BOARD in order to
prevent removal from the project.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2015-03-05 09:23:17 -05:00
Stefano Babic
b8956e9162 flea3: Convert to generic board
Boards need to select CONFIG_SYS_GENERIC_BOARD in order to
prevent removal from the project.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2015-03-05 09:23:13 -05:00
Tom Rini
33d5156f76 fsl_sec.h: Fix thinko
In 0200020 we added a number of tests for 'if
defined(CONFIG_SYS_FSL_SEC_LE) && !defined(CONFIG_MX6)' and
accidentally did one as 'ifdef defined...'

Signed-off-by: Tom Rini <trini@konsulko.com>
2015-03-05 08:56:39 -05:00
Tom Rini
02ebe6f702 Merge branch 'master' of git://www.denx.de/git/u-boot-imx 2015-03-05 07:22:18 -05:00
Stefano Babic
32df39c741 mx5: fix get_reset_cause
commit d9f43c8f5c sets
get_reset_cause() as static, but this conflicts with mx5
where its prototype is in sys_proto.h.

Drop it from sys_proto.h and drop print_cpuinfo from mx53_loco,
factorizing the call for this board.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Jason Liu <jason.hui@linaro.org>
2015-03-05 10:29:27 +01:00
Marek Vasut
bb333031d6 dt: socfpga: Import and enable Arria V DK DTS
Import DTS for Arria V development kit and enable support
for DT. The DT is imported from Linux 3.19-rc1 as of commit
97bf6af1f928216fd6c5a66e8a57bfa95a659672 .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:05 +01:00
Marek Vasut
da63df7c24 dt: socfpga: Import and enable Cyclone V DK DTS
Import DTS for Cyclone V development kit and enable support
for DT. The DT is imported from Linux 3.19-rc1 as of commit
97bf6af1f928216fd6c5a66e8a57bfa95a659672 .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:05 +01:00
Marek Vasut
c115a0d4e7 arm: socfpga: Add Altera Arria V DK support
Add support for the Altera Arria V development kit.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:04 +01:00
Marek Vasut
d7a73038f5 arm: socfpga: Zap board_early_init_f()
Zap this unused empty function, no point in having it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:04 +01:00
Marek Vasut
7287d5f091 arm: socfpga: Zap checkboard()
Since all boards now have a DT, instead of hard-coding the board
name into the U-Boot binary, read the board name from DT "model"
property.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:04 +01:00
Marek Vasut
758be453de arm: socfpga: Drop cyclone5 suffix from board file name
Drop the _cyclone5 suffix from socfpga_cyclone5.c since this file
will contain Arria 5 support as well.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:04 +01:00
Marek Vasut
e5e8717958 arm: socfpga: Add USB and UDC support for Cyclone V DK
Add support for USB host mode and USB device mode for the
Cyclone V development kit and enable support for UMS (to
export SD card as USB mass storage). The UMS is activated
via 'ums 0 mmc 0' command, the system must be connected to
a host PC via HPS USB port and SD card must be installed
for this to work.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:04 +01:00
Marek Vasut
0d13a0051b arm: socfpga: Sync Cyclone V DK PLL configuration
Sync SoCFPGA Cyclone V development kit pinmux configuration with
Rocketboard U-Boot v2013.01.01-114-g9381569 (ACDS14.1_REL_GSRD_PR).

NOTE: This change is useless until we get proper SPL support, at
      which point this will likely need further rework.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:04 +01:00
Marek Vasut
a2d96abe39 arm: socfpga: Sync Cyclone V DK pinmux configuration
Sync SoCFPGA Cyclone V development kit pinmux configuration with
Rocketboard U-Boot v2013.01.01-114-g9381569 (ACDS14.1_REL_GSRD_PR).

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:04 +01:00
Marek Vasut
12ec3c648e arm: socfpga: Minor coding style fix
Replace multiple spaces with a single tab.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@opensource.altera.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
2015-03-04 23:07:03 +01:00
Simon Glass
7ae8350f67 ti: armv7: Move SPL SDRAM init to the right place, drop unused CONFIG_SPL_STACK
Currently in some cases SDRAM init requires global_data to be available
and soon this will not be available prior to board_init_f().  Adjust the
code paths in these cases to be correct.  In some cases we had the SPL
stack be in DDR as we might have large stacks (due to Falcon Mode +
Environment).  In these cases switch to CONFIG_SPL_STACK_R.  In other
cases we had simply been setting CONFIG_SPL_STACK into SRAM.  In these
cases we no longer need to (CONFIG_SYS_INIT_SP_ADDR is used and is also
in SRAM) so drop those lines.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested on Beagleboard, Beagleboard xM
Tested-by: Matt Porter <mporter@konsulko.com>
Tested on Beaglebone Black, AM43xx GP EVM, OMAP5 uEVM, OMAP4 Pandaboard
Tested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-03-04 14:55:04 -05:00
Simon Glass
905949190d Make export interface support CONFIG_SYS_MALLOC_SIMPLE
When CONFIG_SYS_MALLOC_SIMPLE is defined, free() is a static inline. Make
sure that the export interface still builds in this case.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-04 14:55:04 -05:00
Simon Glass
db910353a1 arm: spl: Allow board_init_r() to run with a larger stack
At present SPL uses a single stack, either CONFIG_SPL_STACK or
CONFIG_SYS_INIT_SP_ADDR. Since some SPL features (such as MMC and
environment) require a lot of stack, some boards set CONFIG_SPL_STACK to
point into SDRAM. They then set up SDRAM very early, before board_init_f(),
so that the larger stack can be used.

This is an abuse of lowlevel_init(). That function should only be used for
essential start-up code which cannot be delayed. An example of a valid use is
when only part of the SPL code is visible/executable, and the SoC must be set
up so that board_init_f() can be reached. It should not be used for SDRAM
init, console init, etc.

Add a CONFIG_SPL_STACK_R option, which allows the stack to be moved to a new
address before board_init_r() is called in SPL.

The expected SPL flow (for CONFIG_SPL_FRAMEWORK) is documented in the README.

Signed-off-by: Simon Glass <sjg@chromium.org>
For version 1:
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Heiko Schocher <hs@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>

Signed-off-by: Tom Rini <trini@konsulko.com>
2015-03-04 14:55:04 -05:00
Simon Glass
bdfb34167f dm: tegra: Enable driver model in SPL and adjust the GPIO driver
Use the full driver model GPIO and serial drivers in SPL now that these are
supported. Since device tree is not available they will use platform data.

Remove the special SPL GPIO function as it is no longer needed.

This is all in one commit to maintain bisectability.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-04 14:55:04 -05:00
Simon Glass
fc8fdc76e7 arm: spl: Avoid setting up a duplicate global data structure
This is already set up in crt0.S. We don't need a new structure and don't
really want one in the 'data' section of the image, since it will be empty
and crt0.S's changes will be ignored.

As an interim measure, remove it only if CONFIG_DM is not defined. This
allows us to press ahead with driver model in SPL and allow the stragglers
to catch up.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-04 14:55:04 -05:00
Simon Glass
24a6bc010e arm: Reduce the scope of lowlevel_init()
This function has grown into something of a monster. Some boards are setting
up a console and DRAM here in SPL. This requires global_data which should be
set up in one place (crt0.S).

There is no need for SPL to use s_init() for anything since board_init_f()
is called immediately afterwards.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-04 14:55:04 -05:00
Ying Zhang
703f568167 powerpc: 85xx: Modify CONFIG_USB_MAX_CONTROLLER_COUNT for P1022DS
Modify CONFIG_USB_MAX_CONTROLLER_COUNT value to 1 on P1022DS.
As ETSEC2 and USB2 are muxed; thus if ETSEC2 is enabled, the
system bus hangs on USB2 if ETSEC2 is enabled but "usb start"
command is issued. Hence making default controller count to 1
to avoid system hang.

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: Yusong Sun <yorksun@freescale.com>
2015-03-04 10:15:29 -08:00
Shaveta Leekha
b8bf0adc12 powerpc/mpc85xx: Add DSP side awareness for Freescale Heterogeneous SoCs
The code provides framework for heterogeneous multicore chips based on StarCore
and Power Architecture which are chasis-2 compliant, like B4860 and B4420

It will make u-boot recognize all non-ppc cores and peripherals like
SC3900/DSP CPUs, MAPLE, CPRI and print their configuration in u-boot logs.
Example boot logs of B4860QDS:

U-Boot 2015.01-00232-geef6e36-dirty (Jan 19 2015 - 11:58:45)

CPU0:  B4860E, Version: 2.2, (0x86880022)
Core:  e6500, Version: 2.0, (0x80400120)
Clock Configuration:
       CPU0:1600 MHz, CPU1:1600 MHz, CPU2:1600 MHz, CPU3:1600 MHz,
       DSP CPU0:1200 MHz, DSP CPU1:1200 MHz, DSP CPU2:1200 MHz, DSP CPU3:1200 MHz,
       DSP CPU4:1200 MHz, DSP CPU5:1200 MHz,
       CCB:666.667 MHz,
       DDR:933.333 MHz (1866.667 MT/s data rate) (Asynchronous), IFC:166.667 MHz
       CPRI:600  MHz
       MAPLE:600  MHz, MAPLE-ULB:800  MHz, MAPLE-eTVPE:1000 MHz
       FMAN1: 666.667 MHz
       QMAN:  333.333 MHz

Top level changes include:
(1) Top level CONFIG to identify HETEROGENUOUS clusters
(2) CONFIGS for SC3900/DSP components
(3) Global structures like "cpu_type" and "MPC85xx_SYS_INFO"
    updated for dsp cores and other components
(3) APIs to get DSP num cores and their Mask like:
        cpu_dsp_mask, cpu_num_dspcores etc same as that of PowerPC
(5) Code to fetch and print SC cores and other heterogenous
    device's frequencies
(6) README added for the same

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2015-03-04 10:15:29 -08:00
Marcel Ziswiler
d5338c693e apalis/colibri_t30: add misc cmds increase buf sizes and max args
In order to work with our downstream U-Boot environment and update
scripts add support for the following miscellaneous commands:

CONFIG_CMD_SETEXPR
CONFIG_FAT_WRITE

Increase the console I/O and print as well as argument buffer sizes:

CONFIG_SYS_CBSIZE
CONFIG_SYS_PBSIZE
CONFIG_SYS_BARGSIZE

Increase the maximum number of arguments allowed:

CONFIG_SYS_MAXARGS

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:02 -07:00
Marcel Ziswiler
3d1282ffb8 apalis_t30: enable gigabit ethernet via pcie
Now with all the Tegra PCIe and Intel E1000 gigabit Ethernet driver
updates being merged actually make use of it.

While at it get rid of the USB networking support which now does not
make much sense any longer.

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:02 -07:00
Marcel Ziswiler
72731118e2 apalis/colibri_t30: fix MMC/SD card detect GPIOs
This fixes the MMC/SD card detect GPIOs for Apalis T30 which got broken
by the following commit:

2b2b50bc87 "dm: tegra: dts: Use TEGRA_GPIO() macro for all GPIOs"

While at it also re-add the comments describing which particular
Apalis/Colibri pins those GPIOs are on.

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:02 -07:00
Marcel Ziswiler
cbaeceabed dm: tegra: dts: add aliases for spi on apalis_t30
All boards with a SPI interface have a suitable spi alias except Apalis
T30. Add these missing aliases just as the following commit did for the
others:

d2f60f9332 "dm: tegra: dts: Add aliases for spi on tegra30 boards"

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:02 -07:00
Stephen Warren
27e780f15b ARM: tegra: pinmux: add Tegra210 support
This patch incorporates a few fixes from Tom Warren <twarren@nvidia.com>.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:02 -07:00
Stephen Warren
f4d7c9dd44 ARM: tegra: pinmux: support Tegra210's e_io_hv pin option
Tegra210 has a per-pin option named e_io_hv, which indicates that the
pin's input path should be configured to be 3.3v-tolerant. Add support
for this.

Note that this is very similar to previous chip's rcv_sel option.
However, since the Tegra TRM names this option differently for the
different chips, we support the new name so that the code exactly matches
the naming in the TRM, to avoid confusion.

This patch incorporates a few fixes from Tom Warren <twarren@nvidia.com>.

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
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
f2c60eed51 ARM: tegra: pinmux: support hsm/schmitt on pins
T210 support HSM and Schmitt options in the pinmux register (previous
chips placed these options in the drive group register). 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 10:09:00 -07:00
Stephen Warren
b2cd3d8103 ARM: tegra: pinmux: partially handle varying register layouts
Tegra210 moves some bits around in the pinmux registers. Update the code
to handle this.

This doesn't attempt to address the issues with the group-to-group varying
drive group register layout mentioned earlier. This patch handles the
SoC-to-SoC differences in the mux register layout.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:00 -07:00
Stephen Warren
bc13472867 ARM: tegra: pinmux: move some type definitions
On some future SoCs, some per-drive-group features became per-pin
features. Move all type definitions early in the header so they can
be enabled irrespective of the setting of TEGRA_PMX_SOC_HAS_DRVGRPS.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:09:00 -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
Stephen Warren
9f21c1a378 ARM: tegra: pinmux: add note re: drive group field defines
Tegra's drive group registers have a remarkably inconsistent layout. The
current U-Boot driver doesn't take this into account at all. Add a
comment to describe the issue, so at least anyone debugging the driver
will be aware of this. To solve this, we'd need to add a per-drive-group
data structure describing the layout for the individual register. Since
we don't set up too many drive groups in U-Boot at present, this
hopefully isn't causing too much practical issue. Still, we probably need
to fix this sometime.

Wth Tegra210, the register layout becomes almost entirely consistent, so
this problem partially solves itself over time.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:08:58 -07:00
Stephen Warren
c1fe92fe29 ARM: tegra: import latest Jetson TK1 pinmux
Syseng has revamped the Jetson TK1 pinmux spreadsheet, basing the content
completely on correct configuration for the board/schematic, rather than
the previous version which was based on the bare minimum changes relative
to another reference board.

The new spreadsheet sets TRISTATE for any input-only pins. This only works
correctly if the global CLAMP bit is not set, so the Jetson TK1 board code
has been adjusted accordingly. Apparently syseng have changed their mind
since the previous advice that this needed to be set:-/

This content comes from Jetson_TK1_customer_pinmux.xlsm (v09) downloaded
from https://developer.nvidia.com/hardware-design-and-development.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:08:58 -07:00
Stephen Warren
f799b03f37 ARM: tegra: add function to clear pinmux CLAMPING bit
This is needed to correctly apply the new Jetson TK1 pinmux config.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:08:57 -07:00
Stephen Warren
73c38934da ARM: tegra: support running in non-secure mode
When the CPU is in non-secure (NS) mode (when running U-Boot under a
secure monitor), certain actions cannot be taken, since they would need
to write to secure-only registers. One example is configuring the ARM
architectural timer's CNTFRQ register.

We could support this in one of two ways:
1) Compile twice, once for secure mode (in which case anything goes) and
   once for non-secure mode (in which case certain actions are disabled).
   This complicates things, since everyone needs to keep track of
   different U-Boot binaries for different situations.
2) Detect NS mode at run-time, and optionally skip any impossible actions.
   This has the advantage of a single U-Boot binary working in all cases.

(2) is not possible on ARM in general, since there's no architectural way
to detect secure-vs-non-secure. However, there is a Tegra-specific way to
detect this.

This patches uses that feature to detect secure vs. NS mode on Tegra, and
uses that to:

* Skip the ARM arch timer initialization.

* Set/clear an environment variable so that boot scripts can take
  different action depending on which mode the CPU is in. This might be
  something like:
  if CPU is secure:
    load secure monitor code into RAM.
    boot secure monitor.
    secure monitor will restart (a new copy of) U-Boot in NS mode.
  else:
    execute normal boot process

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-04 10:08:57 -07:00