The behaviour of dev_read_addr_size() is surprising as it does not
handle #address-cells and #size-cells but instead hardcodes the values
based on sizeof(fdt_addr_t).
This is different from dev_read_addr_size_index() and
dev_read_addr_size_name() both of which do read the cell sizes from the
device tree.
Since dev_read_addr_size() is only used by a single driver and this
driver is broken when CONFIG_FDT_64BIT does not match the address size
in the device tree, fix the function to behave like all of the other
similarly named functions. Drop the property name argument as the only
caller passes "reg" and this is the expected property name matching the
other similarly named functions.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org> # chromebook_jerry
Tested-by: Simon Glass <sjg@chromium.org> # chromebook_bob
The current DT bindings for the rk3588 clock use a different ID than the
one that is supposed to be written to the hardware registers.
Thus, we cannot use directly the id provided in the phandle, but rather
use a lookup table to correctly setup the hardware.
This approach has been implemented already in Linux, by commit :
f1c506d152ff ("clk: rockchip: add clock controller for the RK3588")
Hence, implement a similar approach using the lookup table, and adapt
the existing reset driver to work with SoCs using lookup table.
The file rst-rk3588.c has been copied as much as possible from Linux.
Adapt the clk rk3588 driver as well to bind the reset driver with the
lookup table.
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Fix line spacing aligment in bind function
Fixes: 760188c1aa ("rockchip: reset: support a (common) rockchip reset drivers")
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Add a DM reset driver for StarFive JH7110 SoC.
Note that the register base address of reset controller is the
same with the clock controller. Therefore, there is no device
tree node alone for reset driver.It binds device node in
the clock driver
Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Add reset control support in USB glue logic. This needs to control
the external clocks and resets for the logic before accessing the
glue logic.
The USB dm tree when using dwc3-generic is the following:
USB glue
+-- controller (need controller-reset)
+-- controller-reset (need syscon-reset)
+-- phy
The controller needs to deassert "controller-reset" in USB glue before
the controller registers are accessed. The glue needs to deassert
"syscon-reset" before the glue registers are accessed.
The glue itself doesn't have "syscon-reset", so the controller-reset
controls "syscon-reset" instead.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Marek Vasut <marex@denx.de>
This allows devm_reset_control_get(dev, NULL) to work and get the first
reset control, which is common in code ported from Linux.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20230122000252.53642-2-samuel@sholland.org
Add support for at91 reset controller's basic assert/deassert
operations. Since this driver conflicts with the
SYSRESET driver because they both bind to the same RSTC node,
implement a custom bind hook that would manually bind the
sysreset driver, if enabled, to the same RSTC DT node.
Furthermore, delete the no longer needed compatibles from the
SYSRESET driver and rename it to make sure than any possible
conflicts are avoided.
Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
Tested-by: Mihai Sain <mihai.sain@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Since the base functionality remains the same for a reset driver on Qcom
SoCs, so leverage that to convert ipq4019 specific reset driver to a
generic Qcom reset driver. With that one just need to provide SoC specific
reset table.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Add support for versal platform by adding "xlnx,versal-reset"
compatible string in zynqmp-reset driver. Reset numbering schema
for versal is not same as zynqmp, so nr_reset and reset_id are
set to zero. In case of assert/dessert, required device reset id
is sent from respective driver through struct reset_ctl.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@amd.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Link: https://lore.kernel.org/r/20220720095959.29610-2-ashok.reddy.soma@xilinx.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
The clock and reset drivers use the exact same platform data. Simplify
them by sharing the object. This is safe because the parent device
(the clock device) always gets its driver model callbacks run first.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
The reason here is the same as the reason for changing the clock driver:
platform data can be provided when binding the driver.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This allows all of the clock drivers to use a common bind function.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
[Andre: add F1C100s support]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
The I2C driver shares a reset line between buses, so allow it to test
the state of the reset line before resetting it.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
Update SCMI reset controller driver to get its assigned SCMI channel
during initialization. This change allows SCMI reset domain protocol
to use a dedicated channel when defined in the DT. The reference is
saved in SCMI reset controller driver private data.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Changes SCMI driver API function devm_scmi_process_msg() to add
an SCMI channel reference argument for when SCMI agent supports
SCMI protocol specific channels. First argument of devm_scmi_process_msg()
is also change to point to the caller SCMI protocol device rather
than its parent device (the SCMI agent device).
The argument is a pointer to opaque struct scmi_channel known from
the SCMI transport drivers. It is currently unused and caller a pass
NULL value. A later change will enable such support once SCMI protocol
drivers have means to get the channel reference during initialization.
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
In case the ops is not implemented, return 0 in the core right away.
This is better than having multiple copies of functions which just
return 0 in each reset driver. Drop all those empty functions.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Changes devm_scmi_process_msg() first argument from target parent device
to current SCMI device and lookup the SCMI agent device among SCMI device
parents for find the SCMI agent operator needed for communication with
the firmware.
This change is needed in order to support CCF in clk_scmi driver unless
what CCF will fail to find the right udevice related to exposed SCMI
clocks.
This patch allows to simplify the caller sequence, using SCMI device
reference as parameter instead of knowing SCMI uclass topology. This
change also adds some protection in case devm_scmi_process_msg() API
function is called for an invalid device type.
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Add a reset driver to bring IPs out of reset.
Signed-off-by: Keerthy <j-keerthy@ti.com>
[Amjad: reset_ops structure member "free" has been renamed to "rfree",
use the latter instead]
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Somewhere along the way, someone misspelt "invalid" and it got copied
everywhere. Fix it.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The CCU header is only used by the DM drivers, not any platform code.
Its current location adds an artificial dependency on CONFIG_ARM and
ARCH_SUNXI, which will be problematic when adding the CCU driver for
a RISC-V sunxi platform.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Add firmware based reset controller for Xilinx ZynqMP SoC to let other
drivers to call reset functions. Driver is only tested on Xilinx ZynqMP but
support for Xilinx Versal can be simply added. That's why reset_id and
nr_reset are assigned in probe folder.
Driver is inpired by driver from Linux kernel.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The devres_alloc() function is intended to avoid the need for freeing
memory, although in practice it may not be enabled, thus leading to a true
leak.
Nevertheless this is intended. Add a comment to explain this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 312952)
Define LOG_CATEGORY for all uclass to allow filtering with
log command.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add defconfig and board support for HiFive Unmatched.
Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
BITS_PER_LONG is used to represent register's size which is 32.
But when compiled on arch64, BITS_PER_LONG is then equal to 64.
Fix bank and offset computation to make it work on arch32 and
arch64 and ensure that register's size is always equal to 32.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Pankaj Dev <pankaj.dev@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This fixes an issue getting resets index 1 and 3+, the spurius "> 0"
made it return the index 0 or 1, whatever index was passed.
The dm_test_reset_base() did not catch it, but the dm_test_reset_base() extension
catches it and this fixes the regression.
This also fixes a reggression on Amlogic G12A/G12B SoCs, where HDMI output was disable
even when Linux was booting.
Fixes: ea9dc35aab ("reset: Get the RESET by index without device")
Reported-by: B1oHazard <ty3uk@mail.ua>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
In preparation to add SiFive Unmatched board support, let's rename
the existing fu540 board to unleashed.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
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>
Add DM_FLAG_PRE_RELOC flag for reset-mtmips to make sure this driver can
be probed before relocation even if u-boot,dm-pre-reloc is not present
in the dts.
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Add controller reset support through the
System Control Unit (SCU) of AST2600 SoC.
Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
Change debug to dev_dbg macro and define LOG_CATEGORY.
Remove the "%s:" __func__ header as it is managed by dev macro
(dev->name is displayed).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Driver model: Rename U_BOOT_DEVICE et al.
dtoc: Tidy up and add more tests
ns16550 code clean-up
x86 and sandbox minor fixes for of-platdata
dtoc prepration for adding build-time instantiation
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Merge tag 'dm-pull-5jan21' of git://git.denx.de/u-boot-dm into next
Driver model: make some udevice fields private
Driver model: Rename U_BOOT_DEVICE et al.
dtoc: Tidy up and add more tests
ns16550 code clean-up
x86 and sandbox minor fixes for of-platdata
dtoc prepration for adding build-time instantiation
In the spirit of using the same base name for all of these related macros,
rename this to have the operation at the end. This is not widely used so
the impact is fairly small.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present ofnode is present in the device even if it is never used. With
of-platdata this field is not used, so can be removed. In preparation for
this, change the access to go through inline functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
Most drivers use these access methods but a few do not. Update them.
In some cases the access is not permitted, so mark those with a FIXME tag
for the maintainer to check.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Pratyush Yadav <p.yadav@ti.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>
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>
Update Patrick and my email address with the one dedicated to
upstream activities.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Handle the register RCC_MP_GCR without SET/CLR registers
but with a direct access to bit BOOT_MCU:
- deassert => set the bit: The MCU will not be in HOLD_BOOT
- assert => clear the bit: The MCU will be set in HOLD_BOOT
With this patch the RCC driver handles the MCU_HOLD_BOOT_R value
added in binding stm32mp1-resets.h
Cc: Fabien DESSENNE <fabien.dessenne@st.com>
Cc: Arnaud POULIQUEN <arnaud.pouliquen@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
1. Rename AST2500 reset driver from ast2500-reset.c
to reset-ast2500.c
2. Rename AST2500 reset kconfig option from AST2500_RESET
to RESET_AST2500
Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
The System Control Unit (SCU) controller of Aspeed
SoCs provides the reset control for each peripheral.
This patch refactors the reset method to leverage
the SCU reset control. Thus the driver dependency
on watchdog including dedicated WDT API and reset
flag encoding can be eliminated.
The Kconfig description is also updated accordingly.
Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
