Split master clock in 2 controlling block: one for prescaler one for
divider. This will allow referencing correctly the CPU clock and
master clock in device trees.
Reported-by: Eugen Hristev <eugen.hristev@microchip.com>
Fixes: a64862284f ("clk: at91: sam9x60: add support compatible with
CCF")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Revert changes in at91 compat.c that cause u-boot to fail booting on
sama5d4_xplained and sama5d2_xplained
Log below:
<debug_uart>
No serial driver found
Could not initialize timer (err -19)
Could not initialize timer (err -19)
Could not initialize timer (err -19)
Could not initialize timer (err -19)
Could not initialize timer (err -19)
Could not initialize timer (err -19)
Could not initialize timer (err -19)
Could not initialize timer (err -19)
Fixes: a2703ce10c ("dm: Remove uses of device_bind_offset()")
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.
Signed-off-by: Simon Glass <sjg@chromium.org>
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <sjg@chromium.org>
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.
Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.
Signed-off-by: Simon Glass <sjg@chromium.org>
Remove the parsing of atmel,main-osc-bypass DT property as the SAM9X60
have no support for crystal oscillator bypass. Setting this bit might
affect the device functionality.
Fixes: a64862284f ("clk: at91: sam9x60: add support compatible with CCF")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
This SoC has the 5th divisor for the mck0 master clock.
Adapt the characteristics accordingly.
Reported-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
clk-master can have 5 divisors with a field width of 3 bits
on some products.
Change the mask and number of divisors accordingly.
Reported-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Add UTMI support for SAMA7G5. SAMA7G5's UTMI control is done via
XTALF register. Values written at bits 2..0 in this register
correspond to the on board crystal oscillator frequency.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Add master clock (MCK1..MCK4) support for SAMA7G5. SAMA7G5's PMC has
multiple master clocks feeding different subsystems. One of them
feeds image subsystem and is changeable based on image subsystem
needs.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Add sckc driver compatible with common clock framework. Driver
implements slow clock support for SAM9X60 compatible IPs (in this
list it is also present SAMA7G5's slow clock IP).
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Move clock code to compat.c to allow switching to CCF
without mixing CCF code with non CCF code. This prepares the
field for next commits.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Add helper for clock drivers. These will be used by following
commits in the process of switching AT91 clock drivers to CCF.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To help this tedious work, this commit converts devfdt_get_addr_ptr()
to dev_read_addr_ptr() by coccinelle. I also removed redundant casts
because dev_read_addr_ptr() returns an opaque pointer.
To generate this commit, I ran the following semantic patch
excluding include/dm/.
<smpl>
@@
type T;
expression dev;
@@
-(T *)devfdt_get_addr_ptr(dev)
+dev_read_addr_ptr(dev)
@@
expression dev;
@@
-devfdt_get_addr_ptr(dev)
+dev_read_addr_ptr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently when using OF_PLATDATA the binding between devices and drivers
is done trying to match the compatible string in the node with a driver
name. However, usually a single driver supports multiple compatible strings
which causes that only devices which its compatible string matches a
driver name get bound.
To overcome this issue, this patch adds the U_BOOT_DRIVER_ALIAS macro,
which generates no code at all, but allows an easy way to declare driver
name aliases. Thanks to this, dtoc could be improve to look for the driver
name based on its alias when it populates the U_BOOT_DEVICE entry.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
When using OF_PLATDATA, the bind process between devices and drivers
is performed trying to match compatible string with driver names.
However driver names are not strictly defined, and also there are different
names used when declaring a driver with U_BOOT_DRIVER, the name of the
symbol used in the linker list and the used in the struct driver_info.
In order to make things a bit more clear, rename the drivers names. This
will also help for further OF_PLATDATA improvements, such as checking
for valid driver names.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add a fix for sandbox of-platdata to avoid using an invalid ANSI colour:
Signed-off-by: Simon Glass <sjg@chromium.org>
The content dm_ofnode_pre_reloc() is identical with ofnode_pre_reloc()
defined in drivers/core/ofnode.c and used only three times:
- drivers/core/lists.c:lists_bind_fdt()
- drivers/clk/at91/pmc.c::at91_clk_sub_device_bind
- drivers/clk/altera/clk-arria10.c::socfpga_a10_clk_bind
So this function dm_ofnode_pre_reloc can be removed and replaced
by these function calls by ofnode_pre_reloc().
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Simon Glass <sjg@chromium.org>
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
The Special Function Registers (SFR) are present in sam9x5 and
sam9x60 too, rename sama5_sfr to at91_sfr.h.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
In case the slow clock is not properly configured, the UTMI clock
cannot lock the PLL, because UPLLCOUNT will "wait X slow clock cycles".
In this case U-boot will loop indefinitely.
Added a timeout in this case, to start U-boot even if UTMI clock is
not enabled, so the user can use different media if needed, or investigate.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
dm_warn is too noisy, replace with dev_dbg for less noise.
Based on original work by Wenyou Yang
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.
Signed-off-by: Tom Rini <trini@konsulko.com>
As said in the SAMA5D2 datasheet, the PLLA clock must be divided
by 2 by writing the PLLADIV2 bit in PMC_MCKR, if the ratio between
PCK and MCK is 3 (MDIV = 3). This is the purpose of the driver.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Add USB clock driver to configure the input clock and the divider
in the PMC_USB register to generate a 48MHz and a 12MHz signal to
the USB Host OHCI.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Differentiate the generic clock source selection value from the parent
clock index to fix the incorrect assignment of the generic clock
source selection.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
