Lothar Waßmann [Mon, 18 Jun 2012 11:24:01 +0000 (13:24 +0200)]
- initialize some more vital pads
- switch off unneeded clocks in board_early_init_f()
- introduce another bogus delay to make board_eth_init() work reliably
- print exact module name
Lothar Waßmann [Thu, 14 Jun 2012 09:30:36 +0000 (11:30 +0200)]
- use '-x assembler-with-cpp' option to prevent dtc syntax errors
- make sure error messages from dtc are displayed rather than assigned to 'rc' variable
- check for empty $(LDSCRIPT) when trying to find out output format
Lothar Waßmann [Thu, 14 Jun 2012 07:56:58 +0000 (09:56 +0200)]
Combine consecutive inline asm instructions into one statement to
prevent them from being reordered.
The GCC manual states:
| Similarly, you can't expect a sequence of volatile asm instructions
| to remain perfectly consecutive. If you want consecutive output, use a
| single asm. Also, GCC will perform some optimizations across a
| volatile asm instruction; GCC does not “forget everything” when it
| encounters a volatile asm instruction the way some other compilers do.
The reason for above message is that when booting from MMC, I2C needs to
be initialized to talk with the TWL4030. On OMAP3 I2C is only
initalized in SPL if CONFIG_SPL_BOARD_INIT is set.
Cc: Thomas Weber <weber@corscience.de> Cc: Steve Sakoman <sakoman@gmail.com>
Original patch for Beagleboard is: Signed-off-by: Peter Meerwald <p.meerwald@bct-electronic.com>
Extended to cover all other boards: Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Tue, 8 May 2012 07:29:31 +0000 (07:29 +0000)]
ARM: omap3: Set SPL stack size to 8KB, image to 54KB.
With older toolchains it is possible to not fit entirely into the 45KB
that we had assigned to SPL. Adjust to allow for 8KB of stack (which
should be more than required) and 54KB of text/data.
Cc: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Nagendra T S <nagendra@mistralsolutions.com> Cc: Thomas Weber <weber@corscience.de> Cc: Ilya Yanok <yanok@emcraft.com> Cc: Steve Sakoman <sakoman@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Matt Porter [Mon, 7 May 2012 16:49:21 +0000 (16:49 +0000)]
arm, omap3: fix warm reset serial output on OMAP36xx/AM/DM37xx
In warm reset conditions on OMAP36xx/AM/DM37xx the rom code
incorrectly sets the DPLL4 clock input divider to /6.5 which
is an invalid value unless the input clock is 13MHz. When a JTAG
emulator is attached, a warm reset is necessary after the emulator
gains control of the process. This results in a loss of serial
output due to the invalid DPLL4 settings.
This patch fixes the issue by resetting the DPLL4 clock input
divider to /1 when the input clock is not 13MHz. AM/DM37x TRM
section 3.5.3.3.3.2.1 specifies that the /6.5 setting is only
used when the input clock is 13MHz.
Jon Hunter [Tue, 1 May 2012 10:05:08 +0000 (10:05 +0000)]
OMAP4: Set fdt_high for OMAP4 devices to enable booting with Device Tree
For OMAP4 boards, such as the panda-es, that have 1GB of memory the linux
kernel fails to locate the device tree blob on boot. The reason being is that
u-boot is copying the DT blob to the upper part of RAM when booting the kernel
and the kernel is unable to access the blob. By setting the fdt_high variable
to either 0xffffffff (to prevent the copy) or 0xac000000 (704MB boundary
of memory for OMAP4) the kernel is able to locate the DT blob and boot.
Based upon following patch by Dirk Behme set the fdt_high variable to allow
booting with device tree on OMAP4 boards.
"7e9603e i.mx6q: configs: Add fdt_high and initrd_high variables"
Cc: Sricharan R <r.sricharan@ti.com> Cc: Sandeep Paulraj <s-paulraj@ti.com> Cc: Tom Rini <trini@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Tero Kristo [Wed, 25 Apr 2012 06:05:21 +0000 (06:05 +0000)]
omap4: do not enable auxiliary cores
Booting up these cores (dsp / ivahd / cortex-m3) is bad without
firmware running on them, and they will hang preventing any kind
of sleep transitions later on with the kernel.
Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: R Sricharan <r.sricharan@ti.com>
Tero Kristo [Wed, 25 Apr 2012 06:05:19 +0000 (06:05 +0000)]
omap4: panda: disable uart2 pads during boot
If uart2 is enabled during boot, spurious wifi chip transmission will
hang the module and it is impossible to recover from this situation
without hard reset. This will prevent any l4_per domain idle
transitions.
Using the new env import command it is possible to use plain text files instead
of script-images. Plain text files are much easier to handle.
E.g. If your boot.scr contains the following:
-----------------------------------
setenv dvimode 1024x768-16@60
run loaduimage
run mmcboot
-----------------------------------
you could create a file named uEnv.txt and use that instead of boot.scr:
-----------------------------------
dvimode=1024x768-16@60
uenvcmd=run loaduimage; run mmcboot
-----------------------------------
The variable uenvcmd (if existent) will be executed (using run) after uEnv.txt
was loaded. If uenvcmd doesn't exist the default boot sequence will be started,
therefore you could just use
-----------------------------------
dvimode=1024x768-16@60
-----------------------------------
as uEnv.txt because loaduimage and mmcboot is part of the default boot sequence
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Signed-off-by: Anatolij Gustschin <agust@denx.de>
Add support for internal matrix keyboard controller for Nvidia Tegra
platforms. This driver uses the fdt decode function to obtain its key
codes.
Support for the Ctrl modifier is provided. The left and right ctrl keys are
dealt with in the same way.
This uses the new keyboard input library (drivers/input/input.c) to decode
keys and handle most of the common input logic. The new key matrix library
is also used to decode (row, column) key positions into key codes.
The intent is to make this driver purely about dealing with the hardware.
Key detection before the driver is loaded is supported. This key will be
picked up when the keyboard driver is initialized.
Modified by Bernie Thompson <bhthompson@chromium.org> and
Simon Glass <sjg@chromium.org> for device tree, input layer, key matrix
and various other things.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
input: Add support for keyboard matrix decoding from an fdt
Matrix keyboards require a key map to be set up, and must also deal with
key ghosting.
Create a keyboard matrix management implementation which can be leveraged
by various keyboard drivers. This includes code to read the keymap from
the FDT and perform debouncing.
Signed-off-by: Bernie Thompson <bhthompson@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Tue, 17 Apr 2012 09:01:30 +0000 (09:01 +0000)]
input: Add generic keyboard input handler
Add a module which understands converting key codes (or scan codes)
to ASCII characters. It includes FIFO support and can call back to
drivers to read new characters when its FIFO is empty.
Keycode maps are provided for un-modified, shift and ctrl keys.
The plan is to use this module where such mapping is required.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Jimmy Zhang [Tue, 10 Apr 2012 05:17:06 +0000 (05:17 +0000)]
tegra: Add EMC settings for Seaboard
Set Seaboard to optimal memory settings based on the SOC in use (T20 or T25).
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Wei Ni [Mon, 2 Apr 2012 13:18:58 +0000 (13:18 +0000)]
tegra: Turn off power detect in board init
Tegra core power rail has leakage voltage around 0.2V while system in
suspend mode. The source of the leakage should be coming from PMC power
detect logic for IO rails power detection.
That can be disabled by writing a '0' to PWR_DET_LATCH followed by writing '0'
to PWR_DET (APBDEV_PMC_PWR_DET_0).
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Jimmy Zhang [Mon, 2 Apr 2012 13:18:53 +0000 (13:18 +0000)]
tegra: Add PMU to manage power supplies
Power supplies must be adjusted in line with clock frequency. This code
provides a simple routine to set the voltage to allow operation at maximum
frequency.
- Split PMU code into separate TPS6586X driver
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 2 Apr 2012 13:18:50 +0000 (13:18 +0000)]
tegra: Add tegra_get_chip_type() to detect SKU
We want to know which type of chip we are running on - the Tegra
family has several SKUs. This can be determined by reading a
fuse register, so add this function to ap20.
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Yen Lin [Mon, 2 Apr 2012 13:18:49 +0000 (13:18 +0000)]
tegra: Add flow, gp_padctl, fuse, sdram headers
These headers provide access to additional Tegra features.
flow - start/stop CPUs
sdram - parameters for SDRAM
fuse - access to on-chip fuses / security settings
gp_padctl - pad control and general purpose registers
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Yen Lin <yelin@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 2 Apr 2012 13:18:44 +0000 (13:18 +0000)]
i2c: Add TPS6586X driver
This power management chip supports battery charging and a large number
of power supplies. This initial driver only provides the ability to adjust
the two synchronous buck converters SM0 and SM1 in a stepwise manner.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Thu, 10 May 2012 11:37:35 +0000 (11:37 +0000)]
Add abs() macro to return absolute value
This macro is generally useful to make it available in common.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com> Acked-by: Tom Rini <trini@ti.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
Marek Vasut [Tue, 1 May 2012 11:09:47 +0000 (11:09 +0000)]
i.MX28: Shut down the LCD controller before reset
If the LCD controller is on before the CPU goes into reset, the traffic on LCDIF
data pins interferes with the BootROM's boot mode sampling. So shut the
controller down.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
Marek Vasut [Tue, 1 May 2012 11:09:44 +0000 (11:09 +0000)]
i.MX28: Improve passing of data from SPL to U-Boot
Pass memory size from SPL via structure located in SRAM instead of SCRATCH
registers. This allows passing more data about boot from SPL to U-Boot, like the
boot mode pads configuration.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>