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>
Stefano Babic [Wed, 9 May 2012 10:07:31 +0000 (12:07 +0200)]
MX5: PAD_CTL_DRV_VOT_LOW and PAD_CTL_DRV_VOT_HIGH exchanged
After an update to the MX51 reference manual (Rev. 5), the
values of the PAD_CTL_DRV_VOT_LOW and PAD_CTL_DRV_VOT_HIGH
are now clearly wrong:
"Bit 13:
High / Low Output Voltage Range. This bit selects the output voltage mode for
SD2_CMD. 0 High output voltage mode
1 Low output voltage mode"
The values are currently negated in code - fixed.
Reported-by: David Jander <david.jander@protonic.nl> Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Marek Vasut <marek.vasut@gmail.com> CC: David Jander <david.jander@protonic.nl> Acked-by: David Jander <david.jander@protonic.nl> Acked-by: Marek Vasut <marek.vasut@gmail.com>
Marek Vasut [Fri, 4 May 2012 01:32:50 +0000 (01:32 +0000)]
i.MX28: Add delay after CPU bypass is cleared
This solves issues when larger amount of DRAM is used, like 256MB.
Behave the same in case of CPU bypass as we do in case of EMI
bypass, but wait 15 ms. We need to wait until the clock domain
stabilizes.
This issue seemed to have been caused by not waiting after frobbing
with the CPU bypass, it was unrelated to memory, but had a direct
impact, causing trouble. This was yet another X-File of the
imx-bootlets, sigh. The conclusion is, trying a semi-random delay
(there is delay after the EMI bypass change), the issue is fixed.
Another possible explanation is that we do not do the "simple memory
test" FSL does in their imx-bootlets (1000 R/W cycles to/from piece of
the memory, while also outputing something on the serial port). This
might have caused the similar delay in the imx-bootlets and therefore
they didn't need to add this explicitly.
For now, this seems good fix enough, but to me, whole that memory
init code in imx-bootlets is completely flunked and it'd need deeper
investigation.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>
Fabio Estevam [Tue, 8 May 2012 03:40:49 +0000 (03:40 +0000)]
mx53loco: Add CONFIG_REVISION_TAG
FSL 2.6.35 kernel assumes that the bootloader passes the CONFIG_REVISION_TAG information.
The kernel uses this data to distinguish between Dialog versus mc34708 based boards,
and also to distinguish between revA and revB of the mc34708 based boards.
Timo Ketola [Wed, 18 Apr 2012 22:55:34 +0000 (22:55 +0000)]
i.MX2: Include asm/types.h in arch-mx25/imx-regs.h
types.h must be included in imx-regs.h if one wants to include
imx-regs.h in a board configuration file. That for one's part is
necessary, if one wants to use addresses defined in imx-regs.h.
For example, fsl_esdhc.c needs CONFIG_SYS_FSL_ESDHC_ADDR defined and
a proper thing is to define it with IMX_MMC_SDHCx_BASE in board
configuration file. This patch fixes the build in that case.
Signed-off-by: Timo Ketola <timo@exertus.fi> Acked-by: Stefano Babic <sbabic@denx.de>
Timo Ketola [Wed, 18 Apr 2012 22:55:33 +0000 (22:55 +0000)]
imx: usb: There is no such register
The reference manual of i.MX25 (nor i.MX31) does not define such
register. This seems to access read only UH2_CAPLENGTH register (if
CONFIG_MXC_USB_PORT is zero).
Signed-off-by: Timo Ketola <timo@exertus.fi> Acked-by: Stefano Babic <sbabic@denx.de>
Timo Ketola [Wed, 18 Apr 2012 22:55:32 +0000 (22:55 +0000)]
i.MX25: usb: Set PORTSCx register
The USB controller in i.MX25 has a PORTSCx registers which should be
set. In this regard it is similar to the controller in i.MX31. As this
file is compiled only with i.MX25 and -31, #ifdef check can be removed.
Signed-off-by: Timo Ketola <timo@exertus.fi> Acked-by: Stefano Babic <sbabic@denx.de>
Dirk Behme [Wed, 2 May 2012 02:12:17 +0000 (02:12 +0000)]
i.MX6: Add ANATOP regulator init
Init the core regulator voltage to 1.2V. This is required for the correct
functioning of the GPU and when the ARM LDO is set to 1.225V. This is a
workaround to fix some memory clock jitter.
Note: This should be but can't be done in the DCD. The bootloader
prevents access to the ANATOP registers.
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> CC: Jason Chen <b02280@freescale.com> CC: Jason Liu <r64343@freescale.com> CC: Ranjani Vaidyanathan <ra5478@freescale.com> CC: Stefano Babic <sbabic@denx.de> CC: Fabio Estevam <festevam@gmail.com>
To get USB working again on the i.MX6, this patch fixes a bug introduced
with commit 522b2a0 "Add proper IO accessors for mx6 usb registers.".
At that occasion, I also added the missing __iomem directive.
Cc: Marek Vasut <marex@denx.de> CC: Fabio Estevam <festevam@gmail.com> Signed-off-by: Wolfgang Grandegger <wg@denx.de>
Apparently, this commit got mainline only because of out-of-tree
port and causes breakage on board that is mainline. Revert.
Reason:
* The OOT board has 512MB of DRAM, enabling this additional address
line enabled it to work fine with 512MB of RAM.
* Every mainline port has max. 256MB of DRAM, therefore this revert
has no impact on any mainline port
* Though this caused a problem with new M28 board with 256MB of DRAM
where the chips are wired differently. The patch-to-be-reverted
caused the DRAM to behave like this:
Therefore to retain the current one-memory-init-rules-them-all situation,
revert this patch until another board emerges and will actually be pushed
mainline that needs different setup.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@gmail.com>
mx53loco: Add support for 1GHz operation for DA9053-based boards
There are two types of mx53loco boards: initial boards were built with a Dialog
DA9053 PMIC and more recent version is based on a Freescale MC34708 PMIC.
Add DA9053 PMIC support and adjust the required voltages and clocks for running
the CPU at 1GHz.
Tested on both versions of mx53loco boards.
In the case of a MC34708-based board the CPU operating voltage remains at 800MHz.
mx53loco: Allow to print CPU information at a later stage
Print CPU information within board_late_init().
This is in preparation for adding 1GHz support, which requires programming a PMIC
via I2C. As I2C is only available after relocation, print the CPU information
later at board_late_init(), so that the CPU frequency can be printed correctly.
Add clock config interface support, so that we
can configure CPU or DDR clock in the later init
Signed-off-by: Jason Liu <jason.hui@linaro.org> Signed-off-by: Eric Miao <eric.miao@linaro.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Stefano Babic [Wed, 22 Feb 2012 00:24:38 +0000 (00:24 +0000)]
MX53: add function to set SATA clock to internal
The MX53 SATA interface can use an internal clock (USB PHY1)
instead of an external clock. This is an undocumented feature, but used
on most Freescale's evaluation boards, such as MX53-loco.
As stated by Freescale's support:
Fuses (but not pins) may be used to configure SATA clocks.
Particularly the i.MX53 Fuse_Map contains the next information
about configuring SATA clocks :
SATA_ALT_REF_CLK[1:0] (offset 0x180C)
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