ARM errata 852421 and 852423 applies to r1p0, r1p1 and r1p2
revisions of Cortex-A17 processors. These workarounds
exist in Linux kernel and I thought it would be better
to add them in to U-Boot.
Signed-off-by: Nisal Menuka <nisalmenuka23@gmail.com>
Remove unnecessary apb and ahb nodes and just override necessary
nodes/values.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Refactor SCU header to use consistent Mask & Shift values.
Now, consistently, to read value from SCU register, mask needs
to be applied before shift.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add support for clocks needed by MACs to ast2500 clock driver.
The clocks are D2-PLL, which is used by both MACs and PCLK_MAC1 and
PCLK_MAC2 for MAC1 and MAC2 respectively.
The rate of D2-PLL is hardcoded to 250MHz -- the value used in Aspeed
SDK. It is not entirely clear from the datasheet how this clock is used
by MACs, so not clear if the rate would ever need to be different. So,
for now, hardcoding it is probably safer.
The rate of PCLK_MAC{1,2} is chosen based on MAC speed selected through
hardware strapping.
So, the network driver would only need to enable these clocks, no need
to configure the rate.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add Device Model based I2C driver for ast2500/ast2400 SoCs.
The driver is very limited, it only supports master mode and
synchronous byte-by-byte reads/writes, no DMA or Pool Buffers.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Add P-Bus Clock support to ast2500 clock driver.
This is the clock used by I2C devices.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This driver uses Generic Pinctrl framework and is compatible with
the Linux driver for ast2500: it uses the same device tree
configuration.
Not all pins are supported by the driver at the moment, so it actually
compatible with ast2400. In general, however, there are differences that
in the future would be easier to maintain separately.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This change switches all existing users of ast2500 Watchdog to Driver
Model based Watchdog driver.
To perform system reset Sysreset Driver uses first Watchdog device found
via uclass_first_device call. Since the system is going to be reset
anyway it does not make much difference which watchdog is used.
Instead of using Watchdog to reset itself, SDRAM driver now uses Reset
driver to do that.
These were the only users of the old Watchdog API, so that API is
removed.
This all is done in one change to avoid having to maintain dual API for
watchdog in between.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add Reset Driver configuration to ast2500 SoC Device Tree and bindings
for various reset signals
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add Reset Driver for ast2500 SoC. This driver uses Watchdog Timer to
perform resets and thus depends on it. The actual Watchdog device used
needs to be configured in Device Tree using "aspeed,wdt" property, which
must be WDT phandle, for example:
rst: reset-controller {
compatible = "aspeed,ast2500-reset";
aspeed,wdt = <&wdt1>;
}
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Make functions for locking and unlocking SCU part of SCU API.
Many drivers need to modify settings in SCU and thus need to unlock it
first. This change makes it possible.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This driver supports ast2500 and ast2400 SoCs.
Only ast2500 supports reset_mask and thus the option of resettting
individual peripherals using WDT.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This is a simple uclass for Watchdog Timers. It has four operations:
start, restart, reset, stop. Drivers must implement start, restart and
stop operations, while implementing reset is optional: It's default
implementation expires watchdog timer in one clock tick.
Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This patch is required for correct SPL device tree creation by fdtgrep
as fdtgrep looks for u-boot,dm-pre-reloc property of the node to include
it in the spl device tree.
Not adding it in these subnodes ignores the pin muxing of peripherals
which is almost always in the subnodes.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
CONFIG_CMD_DATE was recently moved to Kconfig. Remove the now duplicate
description of the option.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The Kconfig description replaces the description in the README file so
as options are migrated they can be removed from the README.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
After moving to KConfig and removing from all headers options should be
removed from config_whitelist.txt so the build starts complaining if
someone adds them back.
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Avoid repetitive code dealing with asking the user for confirmation.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add an implementation of the ds1307 driver that uses the driver model
i2c APIs.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
netboot allows to boot an external image using TFTP and NFS protocols
Signed-off-by: Pau Pajuelo <ppajuelo@iseebcn.com>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>
The IGEP SMARC AM335x is an industrial processor module with
following highlights:
o AM3352 TI processor (Up to AM3359)
o Cortex-A8 ARM CPU
o SMARC form factor module
o Up to 512 MB DDR3 SDRAM / 512 MB FLASH
o WiFi a/b/g/n and Bluetooth v4.0 on-board
o Ethernet 10/100/1000 Mbps and 10/100 Mbps controller on-board
o JTAG debug connector available
o Designed for industrial range purposes
Signed-off-by: Pau Pajuelo <ppajuelo@iseebcn.com>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>
Convert IGEP board to use UBI volumes for U-Boot, its environment and
kernel. With exception of first four sectors read by SoC BootROM whole
NAND is UBI managed.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Heiko Schocher<hs@denx.de>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>
Rename igep0033 to igep003x as IGEP SMARC AM335x module (igep0034)
can use the same source files.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>
nand_spl_load_image implementation was copied over into three
different drivers and now with nand_spl_read_block used for
ubispl situation gets even worse. For now use least intrusive
solution and #include the same implementation to nand drivers.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>
am33xx does not support OneNAND, but we need this define anyway
to let UBI SPL code compile.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>
This patch removes:
- CONFIG_CMD_MEM: enabled by default
- CONFIG_DESIGNWARE_ETH : not being used anywhere.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
This board support stm32f7 family device stm32f769-I with 2MB internal Flash &
512KB RAM.
STM32F769 lines offer the performance of the Cortex-M7 core (with double
precision floating point unit) running up to 216 MHz.
To compile for stm32f769 board, use same defconfig as stm32f746-disco,
the only difference is to pass "DEVICE_TREE=stm32f769-disco".
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
The number of pins to be configured could be more than 50 e.g. in case
of sdram controller, there are about 56 pins (32 data lines, 12 address
& some control signals).
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
Actually the sdram memory on stm32f746 discovery board is micron part
MT48LC_4M32_B2B5_6A. This patch does the modification required in the
device tree node & driver for the same.
Also we are passing here all the timing parameters in terms of clock
cycles, so no need to convert time(ns or ms) to cycles.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
All discovery boards have one user button & one user LED. Here we are
just reading the button status & switching ON the user LED.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
With this gpio driver supporting DM, there is no need to enable clocks
for different gpios (for pin muxing) in the board specific code.
Need to increase the allocatable area required before relocation from 0x400 to
0xC00 becuase of 10 new gpio devices(& new gpio class) added in device tree.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Also created alias for gpios for stm32f7 discovery board. Based on these
aliases, it would be possible to get gpio devices by sequence.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
This patch also removes the sdram/fmc clock enable from board specific
code.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
As driver model takes care of pin control configuraion, this patch also
removes the sdram/fmc pin configuration.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
At present fdt blob or argument address being passed to kernel is fixed at
compile time using macro CONFIG_SYS_SPL_ARGS_ADDR. FDT blob from
different media like nand, nor flash are copied to the address pointed
by the macro.
The problem is, it makes args/fdt blob compulsory to copy which is not required
in cases like for NOR Flash. This patch removes this limitation.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
