Add a new 'demo light' command which uses GPIOs to control imaginary lights.
Each light is assigned a bit number in the overall value. This provides an
example driver for using the new GPIO API.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a deprecation notice to each function so that it is more obvious that we
are moving GPIOs to driver model.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present U-Boot sort-of supports the standard way of reading GPIOs from
device tree nodes, but the support is incomplete, a bit clunky and only
works for GPIO bindings where #gpio-cells is 2.
Add new functions to request GPIOs, taking full account of the device
tree binding. These permit requesting a GPIO with a simple call like:
gpio_request_by_name(dev, "cd-gpios", 0, &desc, GPIOD_IS_IN);
This will request the GPIO, looking at the device's node which might be
this, for example:
cd-gpios = <&gpio TEGRA_GPIO(B, 3) GPIO_ACTIVE_LOW>;
The GPIO will be set to input mode in this case and polarity will be
honoured by the GPIO calls.
It is also possible to request and free a list of GPIOs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Only the GPIO driver knows about the full GPIO device tree binding used by
a device. Add a method to allow the driver to provide this information to the
uclass, including the GPIO offset within the device and flags such as the
polarity.
Signed-off-by: Simon Glass <sjg@chromium.org>
So far driver model's GPIO uclass just implements the existing GPIO API.
This has some limitations:
- it requires manual device tree munging to support GPIOs in device tree
(fdtdec_get_gpio() and friends)
- it does not understand polarity
- it is somewhat slower since we must scan for the GPIO device each time
- Global GPIO numbering can change if other GPIO drivers are probed
- it requires extra steps to set the GPIO direction and value
The new functions have a dm_ prefix where necessary to avoid name conflicts
but we can remove that when it is no-longer needed. The new struct gpio_desc
holds all required information about the GPIO. For now this is intended to
be stored by the client requesting the GPIO, but in future it might be
brought into the uclass in some way.
With these changes the old GPIO API still works, and uses the driver model
API underneath.
Signed-off-by: Simon Glass <sjg@chromium.org>
For GPIOs and other functions we want to look up a phandle and then decode
a list of arguments for that phandle. Each phandle can have a different
number of arguments, specified by a property in the target node. This is
the "#gpio-cells" property for GPIOs.
Add a function to provide this feature, taken modified from Linux 3.18.
Signed-off-by: Simon Glass <sjg@chromium.org>
The common/board_r.c has show_model_r() to display the model name
if the DTB has a "model" property. It sounds useful to have a similar
function in common/board_f.c too because most of the boards show
their board name before relocation.
Instead of implementing the same function in both common/board_f.c
and common/board_r.c, let's split it up into common/show_board_info.c.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
The dumpimage is able to extract components contained in a FIT image:
$ ./dumpimage -T flat_dt -i CONTAINER.ITB -p INDEX FILE
The CONTAINER.ITB is a regular FIT container file. The INDEX is the poisition
of the sub-image to be retrieved, and FILE is the file (path+name) to save the
extracted sub-image.
For example, given the following kernel.its to build a kernel.itb:
/dts-v1/;
/ {
...
images {
kernel@1 {
description = "Kernel 2.6.32-34";
data = /incbin/("/boot/vmlinuz-2.6.32-34-generic");
type = "kernel";
arch = "ppc";
os = "linux";
compression = "gzip";
load = <00000000>;
entry = <00000000>;
hash@1 {
algo = "md5";
};
};
...
};
...
};
The dumpimage can extract the 'kernel@1' node through the following command:
$ ./dumpimage -T flat_dt -i kernel.itb -p 0 kernel
Extracted:
Image 0 (kernel@1)
Description: Kernel 2.6.32-34
Created: Wed Oct 22 15:50:26 2014
Type: Kernel Image
Compression: gzip compressed
Data Size: 4040128 Bytes = 3945.44 kB = 3.85 MB
Architecture: PowerPC
OS: Linux
Load Address: 0x00000000
Entry Point: 0x00000000
Hash algo: md5
Hash value: 22352ad39bdc03e2e50f9cc28c1c3652
Which results in the file 'kernel' being exactly the same as '/boot/vmlinuz-2.6.32-34-generic'.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
Move the bootcmd commands into a seperate distro_bootcmd environment
variable. Allowing a user to easily launch the distro boot sequence if
the default bootcmd did not default to distro boot commands.
Also set CONFIG_BOOTCOMMAND to "run distro_bootcmd" if it hasn't been
configured yet rather then putting it directly in the environment. This
allows boards to make the distro boot commands available without
necessarily default to them or to use them as a fallback after running
some board specific commands instead.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Not all devices use the convention that the boot scripts are on the
first partition. For example on chromebooks it seems common for the
first two partitions to be ChromeOS kernel partitions.
So instead of just the first partition scan all partitions on a device
with a filesystem u-boot can recognize.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
New command to determine the filesystem type of a given partition.
Optionally stores the filesystem type in a environment variable.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Use the STATUS_LED APIs for indicating a boot progress instead of
show_boot_progress.
This patch also fixes a problem introduced with commit b3f4ca1135 (dm: omap3:
Move to driver model for GPIO and serial). After that commit the board doesn't
boot. Looks like the problem is the gpio_request call inside the function
show_boot_progress.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Generic board with #define CONFIG_SYS_GENERIC_BOARD is working fine.
There is no visible difference between legacy and generic board code.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
The ability to load ELF files is sometimes useful on Malta boards,
particularly for use with small embedded applications. Enable the
loadelf command in the malta config.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
The malta board is used for development and thus the shell is interacted
with often. Enable HUSH to make the experience a little more pleasant.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This patch adds IDE support to the MIPS Malta board. The IDE controller
is enabled after probing the PCI bus and otherwise just makes use of
U-boot generic IDE support.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This commit is a preperation for a subsequent UBIFS commit
which needs atomic_long operations.
Therefor "include/asm-generic/atomic-long.h" is imported
from 1860e37 Linux 3.15
Signed-off-by: Anton Habegger <anton.habegger@gmail.com>
updated the zynq config to support the lthor
download protocol.
This lthor functionality helps us to load linux
images on to DDR/MMC and can boot linux using bootm.
In order to load images the user should run lthor
command run "thor_ram" from u-boot prompt and
then send the images from host using lthor utility.
Define g_dnl_bind_fixup for zynq so that correct vendor
and product ids assigned incase of DFU and lthor.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Enable DFU functionality in zynq.
This DFU functionality helps us to load linux
images on to DDR and can boot linux using bootm.
In order to load images the user should run dfu
command "dfu 0 ram 0" from u-boot prompt and then
send the images from host.
The malloc size has been increased to match the DFU
buffer requirements.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Dont send always emio value as zero for zynq_gem_initialize
send it based on config.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Based on:
"am335x_evm: Enable CMD_EXT4 and CMD_FS_GENERIC, add bootpart to env"
(sha1: 73a27a84e58cb99b4e64ed6a35eab5bc61f44f29)
Fix filesystem specific commands for loading.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Add deep sleep support on Freescale LS1021QDS platform.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
[York Sun: Fix conflict in fdt.c]
Reviewed-by: York Sun <yorksun@freescale.com>
As a temporary measure before the ICH driver moves over to driver model,
add device tree support to the driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
On x86 we use CMOS RAM to read and write some settings. Add basic support
for this, including access to registers 128-255.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move the checksum code out into its own file so it can be used elsewhere.
Also use a new version which supports a length which is not a multiple of
2 and add a new function to add two checksums.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add this to the enum so that we can use the various fdtdec functions. A
later commit will move this driver to driver model.
Signed-off-by: Simon Glass <sjg@chromium.org>
This patch adds LPUART support for LS1021ATWR board.
For ls1021atwr_nor_lpuart_defconfig, LPUART is used as the console.
Signed-off-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This patch adds LPUART support for LS1021AQDS board.
For ls1021aqds_nor_lpuart_defconfig, LPUART is used as the console.
Signed-off-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This patch adds the CH7301 HDMI options and the common configuration
for DCU on LS1021AQDS board.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Alison Wang <alison.wang@freescale.com>
Cc: Jason Jin <Jason.Jin@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Internal memory controller counters can reach a bad state after
training in DDR4 mode if accumulated ECC or DBI mode is eanbled.
Signed-off-by: York Sun <yorksun@freescale.com>
Scrolling a line at a time is very slow for reasons that I don't understand.
It seems to take about 100ms to copy 4MB of RAM in the frame buffer. To cope
with this, scroll 5 lines each time.
Signed-off-by: Simon Glass <sjg@chromium.org>
