Commit graph

293 commits

Author SHA1 Message Date
Quentin Schulz
d842b561bb ram: rockchip: fix typo in KConfig option label
RAM_PX30_DDR4 is for DDR4 support and not DDR3 so let's fix the typo.

Fixes: 2db36c64bd ("ram: rockchip: px30: add a config-based ddr selection")
Cc: Quentin Schulz <foss+uboot@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-10-19 19:30:48 +08:00
Tom Rini
e9a1ff9724 Merge branch 'master' into next
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-09-19 16:07:12 -04:00
Jesse Taube
7d9c6f1781 RAM: Add changes for i.MXRT11xx series
The i.MXRT11 series has different offsets for IOCR_MUX, it also can
address 64MiB of SDRAM so add a macro for that.

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
2022-09-18 20:42:56 +02:00
Stefan Roese
29caf9305b cyclic: Use schedule() instead of WATCHDOG_RESET()
Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
2022-09-18 10:26:33 +02:00
Lee Jones
337e92e79c ram: rk3399: Conduct memory training at 400MHz
Currently the default initialisation frequency is 50MHz.  Although
this does appear to be suitable for some LPDDR4 RAM chips, training at
this low frequency has been seen to cause Column errors, leading to
Capacity check errors on others.

Here we force RAM initialisation to happen at 400MHz before ramping up
to the final value running value of 800MHz after everything has been
successfully configured.

Link: https://lore.kernel.org/u-boot/Yo4v3jUeHXTovjOH@google.com/
Suggested-by: YouMin Chen <cym@rock-chips.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Tested-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Tested-by: Michal Suchánek <msuchanek@suse.de>
2022-09-04 20:00:38 +08:00
Lee Jones
daef678cff ram: rk3399: Fix faulty frequency change reports
Frequency changes to 400MHz are presently reported as:

  lpddr4_set_rate_0: change freq to 400000000 mhz 0, 1

This is obviously wrong by 6 orders of magnitude.

Ensure frequency changes are reported accurately.

Signed-off-by: Lee Jones <lee@kernel.org>
Tested-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-09-04 20:00:38 +08:00
Lee Jones
7b561e2ab8 ram: rk3399: Fix .set_rate_index() error handling
Functions pointed to by this op pointer can return non-zero values
indicating an error.  Ensure any error value is propagated back up the
call-chain.

Signed-off-by: Lee Jones <lee@kernel.org>
Tested-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-09-04 20:00:38 +08:00
Han Pengfei
fc1526f651 drivers: ram: rockchip: Fix dram channels calculation for rk3399
Only add the dram channel when we finally setup it successfully at the
last step.

Signed-off-by: Han Pengfei <pengphei@foxmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-09-04 20:00:38 +08:00
Andrew Davis
80b93bb71c arm: mach-k3: Rename SOC_K3_AM6 to SOC_K3_AM654
The first AM6x device was the AM654x, but being the first we named it
just AM6, since more devices have come out with this same prefix we
should switch it to the normal convention of using the full name of the
first compatibility device the series. This makes what device we are
talking about more clear and matches all the K3 devices added since.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 13:02:04 -04:00
Tom Rini
8bea4bf7d3 tpl: Ensure all TPL symbols in Kconfig have some TPL dependency
Tighten up symbol dependencies in a number of places.  Ensure that a TPL
specific option has at least a direct dependency on TPL.  In places
where it's clear that we depend on something more specific, use that
dependency instead.

Reported-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:03:31 -04:00
Patrick Delaunay
a46dce2817 ram: stm32mp1: add support of STM32MP13x
Add support for new compatible "st,stm32mp13-ddr" to manage the
DDR sub system (Controller and PHY) in STM32MP13x SOC:
- only one AXI port
- support of 16 port output (MEMC_DRAM_DATA_WIDTH = 2)

The STM32MP15x SOC have 2 AXI ports and 32 bits support.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-06-17 10:41:16 +02:00
Suman Anna
d98e860051 arm: mach-k3: Introduce the basic files to support AM62
The AM62 SoC family is the follow on AM335x built on K3 Multicore SoC
architecture platform, providing ultra-low-power modes, dual display,
multi-sensor edge compute, security and other BOM-saving integration.
The AM62 SoC targets broad market to enable applications such as
Industrial HMI, PLC/CNC/Robot control, Medical Equipment, Building
Automation, Appliances and more.

Some highlights of this SoC are:

* Quad-Cortex-A53s (running up to 1.4GHz) in a single cluster.
  Pin-to-pin compatible options for single and quad core are available.
* Cortex-M4F for general-purpose or safety usage.
* Dual display support, providing 24-bit RBG parallel interface and
  OLDI/LVDS-4 Lane x2, up to 200MHz pixel clock support for 2K display
  resolution.
* Selectable GPUsupport, up to 8GFLOPS, providing better user experience
  in 3D graphic display case and Android.
* PRU(Programmable Realtime Unit) support for customized programmable
  interfaces/IOs.
* Integrated Giga-bit Ethernet switch supporting up to a total of two
  external ports (TSN capable).
* 9xUARTs, 5xSPI, 6xI2C, 2xUSB2, 3xCAN-FD, 3x eMMC and SD, GPMC for
  NAND/FPGA connection, OSPI memory controller, 3xMcASP for audio,
  1x CSI-RX-4L for Camera, eCAP/eQEP, ePWM, among other peripherals.
* Dedicated Centralized System Controller for Security, Power, and
  Resource Management.
* Multiple low power modes support, ex: Deep sleep,Standby, MCU-only,
  enabling battery powered system design.

AM625 is the first device of the family. Add DT bindings for the same.

More details can be found in the Technical Reference Manual:
https://www.ti.com/lit/pdf/spruiv7

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Gowtham Tammana <g-tammana@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-06-10 13:37:32 -04:00
Marek Vasut
221869efc3 ram: stm32mp1: Conditionally enable ASR
Enable DRAM ASR, auto self-refresh, conditionally, based on DT PWRCTL
register bits. While ASR does save considerable amount of power at
runtime automatically, it also causes LTDC underruns on large panels.
Let user select whether or not ASR is required or not, generally ASR
should be enabled on portable and battery operated devices.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-05-10 13:54:47 +02:00
Dave Gerlach
270f7fd25b ram: k3-ddrss: Allow use of dt provided initial frequency
Allow device tree to provide ti,ddr-freq0 to be used as the initial DDR
frequency that is set for lpddr4 before initialization of the
controller. Make this optional and continue to use PLL bypass frequency
as is done currently if ti,ddr-freq0 is not provided.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
2022-04-20 11:14:39 -04:00
Dominic Rath
b4c80f245b ram: k3-ddrss: Fix register name and explain its usage
The k3-ddrss driver wants to configure the DDRSS_V2A_CTL_REG to reflect
the maximum possible SDRAM of 2 GB for AM64x (instead of the register's
default that says 8 GB, which the AM64x DDR controller wouldn't support).

The offset 0x20 was correct, but the register name DDRSS_V2A_R1_MAT_REG
was that of the next register at offset 0x24.

Signed-off-by: Dominic Rath <rath@ibv-augsburg.net>
2022-04-20 11:14:39 -04:00
Paweł Jarosz
4b957e7ff5 rockchip: rk3066: add sdram driver
Add rockchip rk3066 sdram driver

Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-04-18 11:25:13 +08:00
Christian Gmeiner
da61ee6625 ram: k3-am654: Make VTT regulator optional
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2022-04-04 19:02:04 -04:00
Dominic Rath
e4901e6591 ram: k3-am654: Write all configuration values
Makes it possible to use 16-bit DDR memory.

Signed-off-by: Dominic Rath <rath@ibv-augsburg.net>
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2022-04-04 19:02:04 -04:00
Dave Gerlach
f861ce90ca ram: k3-ddrss: Introduce ECC Functionality for full memory space
Introduce ECC Functionality for full memory space as implemented in the
DDRSS. The following is done to accomplish this:

 * Introduce a memory region "ss" to allow dt to provide DDRSS region,
   which is not the same as "ctl" which is the controller region.

 * Introduce a "ti,ecc-enable" flag which allows a memorycontroller
   instance to enable ecc.

 * Introduce functionality to properly program the DDRSS registers to
   enable ECC for the full DDR memory space if enabled with above flag.

 * Expose a k3_ddrss_ddr_fdt_fixup call to allow fixup of fdt blob to
   account from DDR memory that must be reserved for ECC operation.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
2022-04-04 19:02:04 -04:00
Dave Gerlach
71eb527476 ram: k3-ddrss: Rename ddrss_ss_regs to ddrss_ctl_regs
The current address being read from dt actually represents the ddrss_ctl
memory region, while ddrss_ss region is something else. Introduce
ddrss_ctl_regs and use it to free up ddrss_ss_regs for its proper
purpose later so that we can avoid confusion.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
2022-04-04 19:02:04 -04:00
Tom Rini
34d2b7f203 Prepare v2022.04-rc5
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Merge tag 'v2022.04-rc5' into next

Prepare v2022.04-rc5
2022-03-28 12:36:49 -04:00
Johan Jonker
861682b596 rockchip: ram: sdram_rk3x88: replace comma by semicolon
A comma at the end of a line gives sometimes strange
effects in combination with some code formatters,
so replace a comma by a semicolon in the sdram_rk3188.c
and sdram_rk3288.c files.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-03-18 18:12:03 +08:00
Marek Vasut
0d44ad8bb4 ram: stm32mp1: Unconditionally enable ASR
Enable DRAM ASR, auto self-refresh, unconditionally. This saves non-trivial
amount of power both at runtime and in suspend (on 2x W632GU6NB-15 ~150mW).

Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
2022-03-15 09:16:55 +01:00
Joel Stanley
5bb26a59c4 ram: aspeed: Rework kconfig options
Ensure the ASPEED related options are grouped together under the RAM
option when enabling support.

This also makes some minor grammar corrections and renames options so
they present cleanly in menuconfig.

There should be no functional change to the configuration or binary.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Dylan Hung <dylan_hung@aspeedtech.com>
2022-03-10 13:49:57 -05:00
David Huang
8fdb1c7f0a ram: k3-ddrss: Add support for J721S2 SoC
Add support for DDR subsystem in J721S2 SoC.

Signed-off-by: David Huang <d-huang@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
2022-02-08 09:41:27 -05:00
Aswath Govindraju
a48fc5cc6f ram: k3-ddrss: Add support for configuring MSMC subsystem in case of Multiple DDR subsystems
In Multi DDR subystems with interleaving support, the following needs to
configured,

- interleaving granular size and region
- EMIFs to be enabled
- EMIFs with ecc to be enabled
- EMIF separated or interleaved
- number of cycles of unsuccessful EMIF arbitration to wait before
  arbitrating for a different EMIF port, by default set to 3

Add support for configuring all the above by using a MSMC device

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
2022-02-08 09:41:26 -05:00
Aswath Govindraju
1a99bec018 ram: k3-ddrss: Add support for multiple instances of DDR subsystems
The current driver only supports single instance of DRR subsystem. Add
support for probing multiple instances of DDR subsystem.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
2022-02-08 09:41:26 -05:00
Aswath Govindraju
3e3d836f92 ram: k3-ddrss: lpddr4_structs_if.h: Add a pointer to ddr instance
Add a pointer to ddr instance int the lpddr4_privatedata_s structure for
supporting mutliple instances of DDR in the drivers.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
2022-02-08 09:41:26 -05:00
Heinrich Schuchardt
2e66ecb765 drivers: octeon: get rid of Unicode in code
Placing Unicode control codes <U+0080><U+0093> in the middle of a comment
does not make much sense. Let's get rid of all Unicode in
drivers/ram/octeon/octeon3_lmc.c.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-01-20 14:45:46 +01:00
Patrick Delaunay
b2ac9645e6 ram: stm32mp1: remove __maybe_unused on stm32mp1_ddr_setup
Since the commit f42045b2e7 ("stm32mp15: replace CONFIG_TFABOOT when
it is possible") the function stm32mp1_ddr_setup is always called so the
__maybe_unused can be removed.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-11-30 16:43:28 +01:00
Patrick Delaunay
d72e7bbe7c ram: stm32mp1: compute DDR size from DDRCTL registers
Compute the DDR size from DDR controller register (mstr and addrmap)
in U-Boot proper as the DDR information are useful only for SPL
but not for U-Boot proper, for example with TFABOOT.

This patch simplify U-Boot DT when several DDR size are supported
and support of next SOC in STM32MP family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-11-30 16:43:28 +01:00
Patrick Delaunay
b3c29dc9e5 stm32mp1: ram: remove tuning support
Remove the DDR interactive command tuning, as the support of a predefined
DDR PHY tuning is removed for STM32MP1 driver in SPL and in TF-A
and the result of this tuning will be never used.

Moreover this SW tuning procedure can failed on some hardware
configuration (to many BIST errors and no convergence); it will be no
more supported in the next delivery of the DDR utilities included in
the CubeMX tool of STMicroelectronics.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-11-30 16:43:28 +01:00
Patrick Delaunay
9819fe345c stm32mp1: ram: remove the support of calibration result
The support of a predefined DDR PHY tuning result is removed for
STM32MP1 driver because it is not needed at the supported frequency
when built-in calibration is executed.

The calibration parameters were provided in the device tree by the
optional node "st,phy-cal", activated in ddr helper file by the
compilation flag DDR_PHY_CAL_SKIP and filled with values generated
by the CubeMX DDR utilities.

This patch
- updates the binding file to remove "st,phy-cal" support
- updates the device trees and remove the associated defines
- simplifies the STM32MP1 DDR driver and remove the support of
  the optional parameter "st,phy-cal"

After this patch, the built-in calibration is always executed
and the calibration registers are moved in the phy dynamic part;
that allows manual tests.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-11-30 16:43:28 +01:00
Patrick Delaunay
4831ba2903 stm32mp1: ram: add read valid training support
Add the read data eye training = training for optimal read valid placement
(RVTRN) when the built-in calibration is executed for LPDDR2 and LPDDR3.

This training is supported on the PUBL integrated in the STM32MP15x
DDR subsystem and it is not required for DDR3.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-11-30 16:43:28 +01:00
Patrick Delaunay
f42045b2e7 stm32mp15: replace CONFIG_TFABOOT when it is possible
In some part of STM32MP15 support the CONFIG_TFABOOT can be replaced
by other config: CONFIG_ARMV7_PSCI and CONFIG_ARM_SMCCC.

This patch also simplifies the code in cpu.c, stm32mp1_ram.c and
clk_stml32mp1.c as execution of U-Boot in sysram (boot without SPL and
without TFA) is not supported: the associated initialization code is
present only in SPL.

This cleanup patch is a preliminary step to support SPL load of OP-TEE
in secure world, with SPL in secure world and U-Boot in no-secure world.

Reported-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-11-10 17:07:31 +01:00
Bin Meng
d36c94279d ram: sifive: Fix -Wint-to-pointer-cast warnings
The following warning is seen in sifive_ddr.c in a 32-bit build:

  warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Change to use dev_read_addr_index_ptr().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2021-10-20 10:59:09 +08:00
Wolfgang Denk
0cf207ec01 WS cleanup: remove SPACE(s) followed by TAB
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-09-30 09:08:16 -04:00
Wolfgang Denk
0a50b3c97b WS cleanup: remove trailing white space
Signed-off-by: Wolfgang Denk <wd@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-09-30 08:08:56 -04:00
Wolfgang Denk
66356b4c06 WS cleanup: remove trailing empty lines
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-09-30 08:08:56 -04:00
Simon Glass
f0ab8f9fbe clk: Rename clk_get_by_driver_info()
This is actually a misnomer now, since the phandle info may contain
a driver_info index or a udevice index. Rename it to use the word
'phandle', which seems more accurate. Add a comment while we are here.

Also add a test for this function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
dcfc42b12f treewide: Try to avoid the preprocessor with OF_REAL
Convert some of these occurences to C code, where it is easy to do. This
should help encourage this approach to be used in new code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
9539738509 treewide: Use OF_REAL instead of !OF_PLATDATA
Now that we have a 'positive' Kconfig option, use this instead of the
negative one, which is harder to understand.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Michal Simek
b4c2c151b1 Kconfig: Remove all default n/no options
default n/no doesn't need to be specified. It is default option anyway.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31 17:47:49 -04:00
Simon Glass
0b1284eb52 global: Convert simple_strtoul() with decimal to dectoul()
It is a pain to have to specify the value 10 in each call. Add a new
dectoul() function and update the code to use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-08-02 13:32:14 -04:00
Patrick Delaunay
b953ec2bca dm: define LOG_CATEGORY for all uclass
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>
2021-07-06 10:38:03 -06:00
Joseph Chen
2d46775287 rockchip: rk3568: Add sdram driver
Add the driver for rk3568 u-boot to get sdram capacity.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2021-06-18 14:36:24 +08:00
Green Wan
dab18c7aa6 drivers: ram: sifive: rename fu540_ddr and add fu740 support
Rename fu540_ddr.c to sifive_ddr.c and add fu740 support

Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2021-05-31 16:35:54 +08:00
Lokesh Vutla
2ce6dedf0b ram: k3-ddrss: Enable vtt regulator if present
Attempt to get and enable a vtt regulator if one is provided from the
dts. If we do not find one, continue as not all platforms have this.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
2021-05-12 16:30:52 +05:30
Dave Gerlach
9f9b5c1c16 ram: k3-ddrss: Introduce support for AM642 SoCs
Introduce support for the AM64 DDRSS controller which uses the 16bit
variation of the controller. This controller shares much functionality
with the existing J721e support, so this patch introduces only the new
code needed for am64 specific support from "_16bit_" files with headers
under "16bit/" include path/.

Also add a CONFIG_K3_AM64_DDRSS option to the choice required for use
with CONFIG_K3_DDRSS to allow selecting AM64 support.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
2021-05-12 16:30:52 +05:30
Dave Gerlach
a8c13c777e ram: k3-ddrss: Introduce common driver with J7 SoC support
Introduce a new version of the ddr driver which has the ability to
support different variations of the controller. Also introduce support
for the 32bit variation of the controller which is what was already
supported by the previous version used for J721e and J7200.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
2021-05-12 16:30:52 +05:30