Yen Lin [Tue, 6 Mar 2012 19:00:23 +0000 (19:00 +0000)]
tegra: i2c: Add I2C driver
Add basic i2c driver for Tegra2 with 8- and 16-bit address support.
The driver requires CONFIG_OF_CONTROL to obtain its configuration
from the device tree.
(Simon Glass: sjg@chromium.org modified for upstream)
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Fri, 3 Feb 2012 15:13:53 +0000 (15:13 +0000)]
fdt: Add function to allow aliases to refer to multiple nodes
Some devices can deal with multiple compatible properties. The devices
need to know which nodes to bind to which features. For example an
I2C driver which supports two different controller types will want to
know which type it is dealing with in each case.
The new fdtdec_add_aliases_for_id() function deals with this by allowing
the driver to search for additional compatible nodes for a different ID.
It can then detect the new ones and perform appropriate processing.
Another option considered was to return a tuple (node offset, compat id)
and have the function be passed a list of compatible IDs. This is more
overhead for the common case though. We may add such a function later if
more drivers in U-Boot require it.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Tom Warren [Tue, 6 Mar 2012 17:10:33 +0000 (17:10 +0000)]
tegra: fdt: Enable FDT support for Ventana
This switches Ventana over to use FDT for run-time config instead of
CONFIG options.
At present Ventana does not have its own device tree file - it just uses
the Seaboard one.
Signed-off-by: Tom Warren <twarren@nvidia.com> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 27 Feb 2012 10:52:50 +0000 (10:52 +0000)]
tegra: usb: Add USB support to nvidia boards
This adds basic USB support for port 0. The other port is not supported
yet.
Tegra2 (SeaBoard) # usb start
(Re)start USB...
USB: Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 5 USB Device(s) found
scanning bus for storage devices... 1 Storage Device(s) found
Tegra2 (SeaBoard) # ext2load usb 0:3 10000000 /boot/vmlinuz
Loading file "/boot/vmlinuz" from usb device 0:3 (ROOT-A) 2932976 bytes read
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Wed, 28 Mar 2012 10:08:24 +0000 (10:08 +0000)]
fdt: Avoid early panic() when there is no FDT present
CONFIG_OF_CONTROL requires a valid device tree. However, we cannot call
panic() before the console is set up since the message does not appear,
and we get a silent failure.
Remove the panic from fdtdec_check_fdt() and provide a new function to
prepare the fdt for use. This will be called after the console is ready.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 27 Feb 2012 10:52:45 +0000 (10:52 +0000)]
tegra: usb: fdt: Add additional device tree definitions for USB ports
This adds clock references to the USB part of the device tree for U-Boot,
and marks USB1 as supporting legacy mode (which we disable in the driver).
The USB timing information may vary between boards sometimes, but for
now we hard-code it in C. This is because all current T2x boards use
the same values, we will deal with T3x later and we first need to agree
on the format for this timing information in the fdt and may in fact
decide that it has no place there.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Tue, 28 Feb 2012 08:07:49 +0000 (08:07 +0000)]
tegra: fdt: Add clock bindings for Tegra2 Seaboard
Add the definition of the oscillator clock frequency and the 32KHz clock.
The latter is provided by a PMIC on I2C which we don't actually use at
present, but we expect this definition to be used in the kernel and want
to keep our .dts the same.
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 27 Feb 2012 10:52:43 +0000 (10:52 +0000)]
tegra: fdt: Add clock bindings
This adds a basic binding for the oscillator and peripheral clocks. The
second cell is the clock number, defined as the bit number within the clock
enable register if the peripheral clock.
This uses the RFC clock bindings from Grant Likely so may change later:
https://lkml.org/lkml/2011/12/12/498
It is taken from Stephen Warren's patch here:
http://patchwork.ozlabs.org/patch/141359/
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 27 Feb 2012 10:52:36 +0000 (10:52 +0000)]
fdt: Add basic support for decoding GPIO definitions
This adds some support into fdtdec for reading GPIO definitions from
the fdt. We permit up to FDT_GPIO_MAX GPIOs in the system. Each GPIO
is of the form:
gpio-function-name = <phandle gpio_num flags>;
where:
phandle is a pointer to the GPIO node
gpio_num is the number of the GPIO (0 to 223)
flags is a flag, as follows:
bit meaning
0 0=polarity normal, 1=active low (inverted)
An example is:
enable-propounder-gpios = <&gpio 43 0>;
which means that GPIO 43 is used to enable the propounder (setting the
GPIO high), or that you can detect that the propounder is enabled by
checking if the GPIO is high (the fdt does not indicate input/output).
Two main functions are provided:
fdtdec_decode_gpio() reads a GPIO property from an fdt node and decodes it
into a structure.
fdtdec_setup_gpio() sets up the GPIO by calling gpio_request for you.
Both functions can cope with the property being missing, which is taken to
mean that that GPIO function is not available or is not needed.
[For reference, from Stephen Warren <swarren@nvidia.com>. It may be that
we add this extra complexity later if needed:
The correct way to parse such a GPIO property in general is:
* Read the first cell.
* Find the node referenced by the phandle (the controller).
* Ensure property gpio-controller is present in the controller node.
* Read property #gpio-cells from the controller node.
* Extract #gpio-cells from the original property.
* Keep processing more cells from the original property; there may be
multiple GPIOs listed.
According to the binding documentation in the Linux kernel, Samsung
Exynos4 doesn't use this format, and while all other chips do have a
flags cell, about 50% of the controllers indicate the cell is unused.
]
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 27 Feb 2012 10:52:35 +0000 (10:52 +0000)]
fdt: Add functions to access phandles, arrays and bools
Add a function to look up a property which is a phandle in a node, and
another to read a fixed-length integer array from an fdt property.
Also add a function to read boolean properties, although there is no
actual boolean type in U-Boot.
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Gerald Van Baren <vanbaren@cideas.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Mon, 27 Feb 2012 10:52:34 +0000 (10:52 +0000)]
fdt: Tidy up a few fdtdec problems
This fixes five trivial issues in fdtdec.c:
1. fdtdec_get_is_enabled() doesn't really need a default value
2. The fdt must be word-aligned, since otherwise it will fail on ARM
3. The compat_names[] array is missing its first element. This is needed
only because the first fdt_compat_id is defined to be invalid.
4. Added a header prototype for fdtdec_next_compatible()
5. Change fdtdec_next_alias() to only increment its 'upto' parameter
on success, to make the display error messages in the caller easier.
Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Gerald Van Baren <vanbaren@cideas.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Tue, 17 Jan 2012 08:20:51 +0000 (08:20 +0000)]
fdt: Add tests for fdtdec
The fdtdec_find_aliases_for_id() function is complicated enough that
it really should have some tests. This does not necessarily need to be
committed to U-Boot, but it might be useful.
(note there are a few minor inconsistencies with this patch which will be
cleaned up when the USB series is applied)
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Simon Glass [Tue, 17 Jan 2012 08:20:50 +0000 (08:20 +0000)]
fdt: Add fdtdec_find_aliases() to deal with alias nodes
Stephen Warren pointed out that we should use nodes whether or not they
have an alias in the /aliases section. The aliases section specifies the
order so far as it can, but is not essential. Operating without alisses
is useful when the enumerated order of nodes does not matter (admittedly
rare in U-Boot).
This is considerably more complex, and it is important to keep this
complexity out of driver code. This patch creates a function
fdtdec_find_aliases() which returns an ordered list of node offsets
for a particular compatible ID, taking account of alias nodes.
Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
The 4.2.2 gcc in the ELDK42 release doesn't like the direct SP
load using a constant in tegra2_start. Change it to use a load
thru another reg using mov sp, %0 : : "r"(CONST).
Tested on my Seaboard T20-A03, U-Boot loads and runs OK. Also
compiled all tegra2 builds with both gcc 4.2.2 and 4.4.1 OK.
Signed-off-by: Tom Warren <twarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
Eric Nelson [Thu, 15 Mar 2012 18:33:25 +0000 (18:33 +0000)]
net: fec_mxc: allow use with cache enabled
Ensure that transmit and receive buffers are cache-line aligned.
Invalidate cache for each packet as received, update receive buffer
descriptors one cache line at a time, flush cache before transmitting.
Original patch by Marek:
http://lists.denx.de/pipermail/u-boot/2012-February/117695.html
Signed-off-by: Eric Nelson <eric.nelson at boundarydevices.com> Acked-by: Marek Vasut <marex@denx.de> Tested-by: Marek Vasut <marex@denx.de>
Marek Vasut [Thu, 15 Mar 2012 18:41:35 +0000 (18:41 +0000)]
MMC: Implement generic bounce buffer
This implements generic bounce buffer at the end of MMC command submission
chain. Therefore if unaligned data are passed, they are copied. This stuff
should be pushed down into the MMC subsystem to squash all places generating
these unaligned data.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andy Fleming <afleming@gmail.com>
arch/arm/lib/libarm.o: In function `icache_disable':
/home/ag/git/u-boot/arch/arm/lib/cache-cp15.c:156: multiple
definition of `icache_disable'
board/vpac270/libvpac270.o:/home/ag/git/u-boot/board/vpac270/onenand.c:65:
first defined here
arch/arm/lib/libarm.o: In function `dcache_disable':
/home/ag/git/u-boot/arch/arm/lib/cache-cp15.c:188: multiple
definition of `dcache_disable'
board/vpac270/libvpac270.o:/home/ag/git/u-boot/board/vpac270/onenand.c:66:
first defined here
make[1]: *** [/home/ag/git/u-boot/spl/u-boot-spl] Error 1
Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Marek Vasut <marek.vasut@gmail.com> Acked-by: Marek Vasut <marex@denx.de>
Fix:
common/libcommon.o: In function `cread_line':
/home/ag/git/u-boot/common/main.c:695: undefined reference to `get_ticks'
/home/ag/git/u-boot/common/main.c:695: undefined reference to `get_tbclk'
/home/ag/git/u-boot/common/main.c:698: undefined reference to `get_ticks'
Andreas Bießmann [Tue, 13 Mar 2012 05:01:51 +0000 (05:01 +0000)]
atmel-boards: add missing atmel_mci.h
commit 72fa467988e7944407a634ddc4bc6a2df685c04c moved atmel_mci_init() into
include/atmel_mci.h. Some AT91 boards are also using this interface and need
to include atmel_mci.h now.
This patch fixes MAKEALL complaints like this:
---8<---
Configuring for ethernut5 - Board: ethernut5, Options: AT91SAM9XE
ethernut5.c: In function 'board_mmc_init':
ethernut5.c:235:2: warning: implicit declaration of function 'atmel_mci_init' [-Wimplicit-function-declaration]
--->8---
Signed-off-by: Andreas Bießmann <biessmann@corscience.de> CC: Albert Aribaud <albert.u.boot@aribaud.net> CC: Reinhard Meyer <u-boot@emk-elektronik.de> CC: egnite GmbH <info@egnite.de>
Vipin KUMAR [Mon, 26 Mar 2012 10:08:06 +0000 (15:38 +0530)]
Enable high speed support for USB device framework and usbtty
This patch adds the support for high speed in usb device framework and usbtty
driver. This feature has been kept within a macro CONFIG_USBD_HS, so the board
configuration files have to define this macro to enable high speed support.
Along with that specific peripheral drivers also need to define a function to
let the framework know that the enumeration has happened at high speed.
This function prototype is "int is_usbd_high_speed(void)"
Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com>
Mike Frysinger [Sat, 7 Jan 2012 23:14:35 +0000 (23:14 +0000)]
lzma: fix printf warnings
Fix size_t printf format warnings:
LzmaTools.c: In function 'lzmaBuffToBuffDecompress':
LzmaTools.c:110:5: warning: format '%x' expects type 'unsigned int',
but argument 2 has type 'SizeT'
LzmaTools.c:111:5: warning: format '%x' expects type 'unsigned int',
but argument 2 has type 'SizeT'
Heiko Schocher [Wed, 7 Mar 2012 04:10:00 +0000 (04:10 +0000)]
ARM: davinci: fixes for cam_enc_4xx board
- change CONFIG_ENV_RANGE to contain 2 nand erase blocks,
one for bad block reserve.
- remove from the envvariable "img_writeramdisk" the
ubifsmount command, as it is not needed.
- erase the hole mtd partition containing u-boot
- save environment variable "dvn_app_vers" and "dvn_boot_vers"
only after installing the new image.
changes requested from Marek Vasut:
- arm, davinci: fix eldk-4.2 warnings for cam_enc_4xx board
- get rid of run_command2 usage
needed since patch:
commit 009dde1955583e306cf904c864068f3acb0db499
Author: Simon Glass <sjg@chromium.org>
Date: Tue Feb 14 19:59:20 2012 +0000
Rename run_command2() to run_command()
is now in mainline.
- add CONFIG_SPL_LIBGENERIC_SUPPORT support
- remove CONFIG_CMD_PXE support
- fix warning:
cam_enc_4xx.c: In function 'menu_handle':
cam_enc_4xx.c:609: warning: dereferencing type-punned pointer
will break strict-aliasing rules
- fix error:
arm-linux-ld: u-boot-spl: Not enough room for program headers,
try linking with -N
Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Tom Rini <tom.rini@gmail.com> Cc: Fletzer Martin <Martin.Fletzer@ait.ac.at> Cc: Wolfgang Denk <wd@denx.de>
twl4030: fix potential power supply handling issues
twl4030_pmrecv_vsel_cfg currently first sets up device group (effectively
enabling the supply), and only then sets vsel (selects voltage). This could
lead to wrong voltage for a short time, or even long time if second i2c
write fails.
Fix this by writing vsel first and device group after that. Also
introduce error checking to not enable the supply if we failed to set
the voltage, and start logging errors as power supply problems are
usually important.
Stefano Babic [Wed, 21 Mar 2012 23:56:17 +0000 (23:56 +0000)]
NAND: TI: fix warnings in omap_gpmc.c
The following warnings are reported for boards using SOFT ECC.
omap_gpmc.c:33:30: warning: 'hw_nand_oob' defined but not used
omap_gpmc.c:78:13: warning: 'omap_hwecc_init' defined but not used
omap_gpmc.c:116:12: warning: 'omap_correct_data' defined but not used
omap_gpmc.c:182:12: warning: 'omap_calculate_ecc' defined but not used
omap_gpmc.c:208:13: warning: 'omap_enable_hwecc' defined but not used
Signed-off-by: Stefano Babic <sbabic@denx.de> Cc: Tom Rini <trini@ti.com> Cc: Scott Wood <scottwood@freescale.com>
Tom Rini [Thu, 15 Mar 2012 04:01:46 +0000 (04:01 +0000)]
cam_enc_4xx: Rename 'images' to 'imgs'
To avoid a conflict with common/cmd_bootm.c's 'images' (which is
exposed as part of the Linux SPL series), rename the board-specific
'images' to 'imgs'.
Simon Schwarz [Thu, 15 Mar 2012 04:01:45 +0000 (04:01 +0000)]
arm: Add Prep subcommand support to bootm
Adds prep subcommand to bootm implementation of ARM. When bootm is called
with the subcommand prep the function stops right after ATAGS creation and
before announce_and_cleanup.
This is used in command "cmd_spl export"
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Acked-by: Stefano Babic <sbabic@denx.de> Tested-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
Stefano Babic [Thu, 15 Mar 2012 04:01:44 +0000 (04:01 +0000)]
OMAP3: twister: add support to boot Linux from SPL
Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Tom Rini <tom.rini@gmail.com> CC: Wolfgang Denk <wd@denx.de> CC: Simon Schwarz <simonschwarzcor@gmail.com>
Stefano Babic [Thu, 15 Mar 2012 04:01:43 +0000 (04:01 +0000)]
SPL: call cleanup_before_linux() before booting Linux
Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Tom Rini <tom.rini@gmail.com> CC: Wolfgang Denk <wd@denx.de> CC: Simon Schwarz <simonschwarzcor@gmail.com>
Stefano Babic [Thu, 15 Mar 2012 04:01:42 +0000 (04:01 +0000)]
OMAP3: SPL: do not call I2C init if no I2C is set.
Call i2c initialization in spl_board_init only if I2C
is configured for the board.
Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Tom Rini <tom.rini@gmail.com> CC: Wolfgang Denk <wd@denx.de> CC: Simon Schwarz <simonschwarzcor@gmail.com>
Stefano Babic [Thu, 15 Mar 2012 04:01:41 +0000 (04:01 +0000)]
Add cache functions to SPL for armv7
Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Tom Rini <tom.rini@gmail.com> CC: Wolfgang Denk <wd@denx.de> CC: Simon Schwarz <simonschwarzcor@gmail.com>
Simon Schwarz [Thu, 15 Mar 2012 04:01:40 +0000 (04:01 +0000)]
devkit8000: Implement and activate direct OS boot
- Implements spl_start_uboot() for devkit8000
- Add configs to activate direct OS boot from SPL
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> CC: Tom Rini <tom.rini@gmail.com> CC: Stefano Babic <sbabic@denx.de> CC: Wolfgang Denk <wd@denx.de>
Simon Schwarz [Thu, 15 Mar 2012 04:01:39 +0000 (04:01 +0000)]
omap/spl: change output of spl_parse_image_header
This only outputs "Assuming u-boot.bin..." if debug is active.
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> CC: Tom Rini <tom.rini@gmail.com> CC: Stefano Babic <sbabic@denx.de> CC: Wolfgang Denk <wd@denx.de>
Simon Schwarz [Thu, 15 Mar 2012 04:01:38 +0000 (04:01 +0000)]
omap-common/spl: Add linux boot to SPL
This adds Linux booting to the SPL
This depends on CONFIG_MACH_TYPE patch by Igor Grinberg
(http://article.gmane.org/gmane.comp.boot-loaders.u-boot/105809)
Related CONFIGs:
CONFIG_SPL_OS_BOOT
Activates/Deactivates the OS booting feature
CONFIG_SPL_OS_BOOT_KEY
defines the IO-pin number u-boot switch - if pressed u-boot is
booted
CONFIG_SYS_NAND_SPL_KERNEL_OFFS
Offset in NAND of direct boot kernel image to use in SPL
CONFIG_SYS_SPL_ARGS_ADDR
Address where the kernel boot arguments are expected - this is
normaly RAM-begin + 0x100
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> CC: Tom Rini <tom.rini@gmail.com> CC: Stefano Babic <sbabic@denx.de> CC: Wolfgang Denk <wd@denx.de>
Simon Schwarz [Thu, 15 Mar 2012 04:01:37 +0000 (04:01 +0000)]
devkit8000/spl: init GPMC for dm9000 in SPL
Linux crashes if the GPMC isn't configured for the dm9000.
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> CC: Tom Rini <tom.rini@gmail.com> CC: Stefano Babic <sbabic@denx.de> CC: Wolfgang Denk <wd@denx.de>
Simon Schwarz [Thu, 15 Mar 2012 04:01:36 +0000 (04:01 +0000)]
omap-common: Add NAND SPL linux booting
This implements booting of Linux from NAND in SPL
Related config parameters:
CONFIG_SYS_NAND_SPL_KERNEL_OFFS
Offset in NAND of direct boot kernel image to use in SPL
CONFIG_SYS_SPL_ARGS_ADDR
Address where the kernel boot arguments are expected - this is
normally RAM-start + 0x100 (on ARM)
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> CC: Tom Rini <tom.rini@gmail.com> CC: Stefano Babic <sbabic@denx.de> CC: Wolfgang Denk <wd@denx.de>
Simon Schwarz [Thu, 15 Mar 2012 04:01:35 +0000 (04:01 +0000)]
devkit8000: add config for spl command
This adds some configs for devkit8000 to use the new spl command
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> CC: Tom Rini <tom.rini@gmail.com> CC: Stefano Babic <sbabic@denx.de> CC: Wolfgang Denk <wd@denx.de>
Simon Schwarz [Thu, 15 Mar 2012 04:01:34 +0000 (04:01 +0000)]
Add cmd_spl command
This adds a spl command to the u-boot.
Related config:
CONFIG_CMD_SPL
activate/deactivate the command
CONFIG_CMD_SPL_NAND_OFS
Offset in NAND to use
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Tom Rini <tom.rini@gmail.com> CC: Wolfgang Denk <wd@denx.de>
Tim Kientzle [Tue, 27 Mar 2012 09:43:25 +0000 (11:43 +0200)]
disk/part.c: Fix device enumeration through API
The patch below fixes device enumeration through the U-Boot API.
Device enumeration crashes when the system in question doesn't
have any RAM mapped to address zero (I discovered this on a
BeagleBone board), since the enumeration calls get_dev with a
NULL ifname sometimes which then gets passed down to strncmp().
This fix simply ensures that get_dev returns NULL when invoked
with a NULL ifname.
Signed-off-by: Tim Kientzle <kientzle@freebsd.org> Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fabio Estevam [Mon, 19 Mar 2012 13:41:25 +0000 (13:41 +0000)]
mx53ard: Initialize return code with error
The variable "rc" is the return of board_eth_init() function. Initialize
it with an error code, so that this function can return an error when
CONFIG_SMC911X is not set.
Fabio Estevam [Wed, 21 Mar 2012 05:42:45 +0000 (05:42 +0000)]
mx53: Make PLL2 to be the parent of UART clock
Change the parent UART clock to be PLL2, so that U-boot can also boot
a Freescale 2.6.35 kernel for mx53.
FSL kernel and U-boot changed the UART parent from PLL3 to PLL2 to avoid
conflicts with IPU clocks, so that the video resolution can be changed
without affecting the UART clock.
On a 2.6.35 kernel the serial console is messed up after IPU driver is loaded
and this patch fixes this problem.
Tested on a mx53loco board booting a FSL kernel and also a mainline kernel.
Reported-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Otavio Salvador <otavio@ossystems.com.br>
projects / u-boot / log