Simple version of clk_get_by_index() added by:
"dm: clk: Add a simple version of clk_get_by_index()"
(sha1: a4b10c088c)
is only working for #clock-cells=<1> but not for
any other values. Fixed clocks is using #clock-cells=<0>
which requires full implementation.
Remove simplified versions of clk_get_by_index() and use full version.
Also remove empty clk_get_by_name() which is failing when it is called
which is useless.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Read information about clock frequency from DT.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
Disable internal clock by clearing the internal
clock enable bit. This bit needs to be cleared too
when we stop the SDCLK for changing the frequency
divisor. This bit should be set to zero when the
device is not using the Host controller.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
flash_full_status_check() checks bit XSR.7 on Intel chips. This
should be done by only checking bit 7 and not by comparing the
whole status byte or word with 0x80.
This fixes the non-working block erase in the pflash emulation
of Qemu when used with the MIPS Malta board. MIPS Malta uses x32
mode to access the pflash device. In x32 mode Qemu mirrors the
lower 16 bits of the status word into the upper 16 bits. Thus
the CFI driver gets a status word of 0x8080 in x32 mode. If
flash_full_status_check() uses flash_isequal(), then it polls for
XSR.7 by comparing 0x8080 with 0x80 which never becomes true.
Reported-by: Alon Bar-Lev <alon.barlev@gmail.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Now that we know that the BROM stores a value indicating the boot-source
at the beginning of SRAM, use that instead of trying to recreate the
BROM's boot probing.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This patch add EMAC driver support for H3/A83T/A64 SoCs.
Tested on Pine64(A64-External PHY) and Orangepipc(H3-Internal PHY).
BIG Thanks to Andre for providing some of the DT code.
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
With a recent bunch of SD3.0 cards in our A20-based board we
experienced data transfer rates of about 250 KiB/s instead of 10 MiB/s
with previous cards from the same vendor (both 4 GB/class 10). By
increasing status register polling rate from 1 kHz to 1 MHz we were
able to reach the original transfer rates again. With the old cards
we now even reach about 16 MiB/s.
Signed-off-by: Tobias Doerffel <tobias.doerffel@ed-chemnitz.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Allwinner devices support SPI flash as one of the possible
bootable media type. The SPI flash chip needs to be connected
to SPI0 pins (port C) to make this work. More information is
available at:
https://linux-sunxi.org/Bootable_SPI_flash
This patch adds the initial support for booting from SPI flash.
The existing SPI frameworks are not used in order to reduce the
SPL code size. Right now the SPL size grows by ~370 bytes when
CONFIG_SPL_SPI_SUNXI option is enabled.
While there are no popular Allwinner devices with SPI flash at
the moment, testing can be done using a SPI flash module (it
can be bought for ~2$ on ebay) and jumper wires with the boards,
which expose relevant pins on the expansion header. The SPI flash
chips themselves are very cheap (some prices are even listed as
low as 4 cents) and should not cost much if somebody decides to
design a development board with an SPI flash chip soldered on
the PCB.
Another nice feature of the SPI flash is that it can be safely
accessed in a device-independent way (since we know that the
boot ROM is already probing these pins during the boot time).
And if, for example, Olimex boards opted to use SPI flash instead
of EEPROM, then they would have been able to have U-Boot installed
in the SPI flash now and boot the rest of the system from the SATA
hard drive. Hopefully we may see new interesting Allwinner based
development boards in the future, now that the software support
for the SPI flash is in a better shape :-)
Testing can be done by enabling the CONFIG_SPL_SPI_SUNXI option
in a board defconfig, then building U-Boot and finally flashing
the resulting u-boot-sunxi-with-spl.bin binary over USB OTG with
a help of the sunxi-fel tool:
sunxi-fel spiflash-write 0 u-boot-sunxi-with-spl.bin
The device needs to be switched into FEL (USB recovery) mode first.
The most suitable boards for testing are Orange Pi PC and Pine64.
Because these boards are cheap, have no built-in NAND/eMMC and
expose SPI0 pins on the Raspberry Pi compatible expansion header.
The A13-OLinuXino-Micro board also can be used.
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add support for of-platdata with rk3288. This requires disabling access to
the device tree and renaming the driver to match the string that of-platdata
will search for.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for of-platdata with rk3288. This requires decoding the
of-platdata struct and setting up the devices from that. Also the driver
needs to be renamed to match the string that of-platdata will search for.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is more correct to avoid touching the device tree in the probe() method.
Update the driver to work this way. Also add an error check on grf since if
that fails then we should not use it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for of-platdata with rk3288. This requires decoding the
of-platdata struct and setting up the device from that. Also the driver
needs to be renamed to match the string that of-platdata will search for.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is more correct to avoid touching the device tree in the probe() method.
Update the driver to work this way.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a driver that works with of-platdata. It sets up the platform data and
calls the standard ns16550 driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
With of-platdata this driver cannot know the format of the of-platdata
struct, so we cannot use generic code for accessing the of-platdata. Each
SoC that uses this driver will need to set up ns16550's platdata for it.
So don't compile in the generic code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an implementation of this function which mirrors the functions of the
automatic device-tree implementation. This can be used with of-platdata to
create regmaps.
Signed-off-by: Simon Glass <sjg@chromium.org>
We plan to add a new way of creating a regmap for of-platdata. Move the
allocation code into a separate function so that it can be shared.
Signed-off-by: Simon Glass <sjg@chromium.org>
Devices which use of-platdata have their own platdata. However, in many
cases the driver will have its own auto-alloced platdata, for use with the
device tree. The ofdata_to_platdata() method converts the device tree
settings to platdata.
With of-platdata we would not normally allocate the platdata since it is
provided by the U_BOOT_DEVICE() declaration. However this is inconvenient
since the of-platdata struct is closely tied to the device tree properties.
It is unlikely to exactly match the platdata needed by the driver.
In fact a useful approach is to declare platdata in the driver like this:
struct r3288_mmc_platdata {
struct dtd_rockchip_rk3288_dw_mshc of_platdata;
/* the 'normal' fields go here */
};
In this case we have dt_platadata available, but the normal fields are not
present, since ofdata_to_platdata() is never called. In fact driver model
doesn't allocate any space for the 'normal' fields, since it sees that there
is already platform data attached to the device.
To make this easier, adjust driver model to allocate the full size of the
struct (i.e. platdata_auto_alloc_size from the driver) and copy in the
of-platdata. This means that when the driver's bind() method is called,
the of-platdata will be present, followed by zero bytes for the empty
'normal field' portion.
A new DM_FLAG_OF_PLATDATA flag is available that indicates that the platdata
came from of-platdata. When the allocation/copy happens, the
DM_FLAG_ALLOC_PDATA flag will be set as well. The dtoc tool is updated to
output the platdata_size field, since U-Boot has no other way of knowing
the size of the of-platdata struct.
Signed-off-by: Simon Glass <sjg@chromium.org>
When this feature is enabled, we cannot access the device tree to find out
which serial device to use. Just use the first serial driver we find.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a driver which uses of-platdata to obtain its platform data. This can
be used to test the feature in sandbox. It displays the contents of its
platform data.
Signed-off-by: Simon Glass <sjg@chromium.org>
Provide a new function which can cope with obtaining information from
of-platdata instead of the device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
When CONFIG_SPL_OF_PLATDATA is enabled we should not access the device
tree. Remove all references to this in the core driver-model code.
Signed-off-by: Simon Glass <sjg@chromium.org>
This patch adds 200MHz clock configuration for stm32f746 discovery board.
This patch is based on STM32F4 and emcraft's[1].
[1]: https://github.com/EmcraftSystems/u-boot
Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
For consistency with board_should_run_oprom(), do the same to
should_load_oprom(). Board support codes can provide this one
to override the default weak one.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
At present should_load_oprom() calls board_should_run_oprom() to
determine whether oprom should be loaded. But sometimes we just
want to load oprom without running. Make them independent.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This patch support the driver mode for exynos dwmmc controller.
To support the legacy model, maintained the existing code.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
If there is not "samsung,bus-width" property, use the 4bit buswidth by
default.
Almost all Exnyos SoCs support at least 4bit buswidth.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Clean the unused and unnecessary codse.
This patch is one of them for preparing to use DM.
Because it's easy to maintain and combine DM after cleaning codes.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
PERIPH_ID_SDMMC4(131) is not continous value with PERIPH_ID_SDMMC0(75).
If there is no 'index' property in fdt, then dev_index should be
assigned to dev_id(Peripheral ID).
At this time, dev_index should be "56". It means Exynos SoC has "56"
numbers of DWMMC IP. To prevent this behavior, it needs to check the
maximum device index.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Removed #ifdef for OF_CONTROL.
It might use 'OF_CONTROL' by default.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This function have maintained for supporting Non-FDT.
Now, Almost all SoC are changed to fdt style.
So there are no that this function is called anywhere.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
The cros-ec keyboard is always a child of the cros-ec node. Rather than
searching the device tree, looking at the children. Remove the compat string
which is now unused.
Signed-off-by: Simon Glass <sjg@chromium.org>
Define a platform data structure for the MPC85XX GPIO driver to allow
use of the driver without device tree. Users should define the GPIO
blocks for their platform like this:
struct mpc85xx_gpio_plat gpio_blocks[] = {
{
.addr = 0x130000,
.ngpios = 32,
},
{
.addr = 0x131000,
.ngpios = 32,
},
};
U_BOOT_DEVICES(my_platform_gpios) = {
{ "gpio_mpc85xx", &gpio_blocks[0] },
{ "gpio_mpc85xx", &gpio_blocks[1] },
};
This is intended to build upon the recent submission of the base
MPC85XX driver from Mario Six. We need to use that new driver
without dts support and this patch gives us that flexibility.
This has been tested on a Freescale T2080 CPU, although only the first
GPIO block.
Signed-off-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz>
Reviewed-by: Mario Six <mario.six@gdsys.cc>
Tested-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Simon Glass <sjg@chromium.org>
