Commit Graph

1286 Commits

Author SHA1 Message Date
Manish Pandey f7a92518f6 Merge changes from topic "st_ddr_updates" into integration
* changes:
  refactor(st-ddr): move basic tests in a dedicated file
  refactor(st-ddr): reorganize generic and specific elements
  feat(stm32mp1): allow configuration of DDR AXI ports number
  refactor(st-ddr): update parameter array initialization
  feat(st-ddr): add read valid training support
  refactor(stm32mp1): remove the support of calibration result
  fix(st-ddr): correct DDR warnings
2022-01-07 17:24:54 +01:00
Manish Pandey 5b0962833a Merge changes I19f713de,Ib5bda93d,Id5dafc04,Id20e65e2 into integration
* changes:
  feat(plat/rcar3): update IPL and Secure Monitor Rev.3.0.3
  feat(plat/rcar3): modify type for Internal function argument
  feat(plat/rcar3): modify sequence for update value for WUPMSKCA57/53
  fix(plat/rcar3): fix to bit operation for WUPMSKCA57/53
2022-01-05 17:28:13 +01:00
Manish Pandey f8183f4df1 Merge "fix(ufs): delete call to inv_dcache_range for utrd" into integration 2022-01-05 12:08:14 +01:00
Nicolas Le Bayon 63d2159846 refactor(st-ddr): move basic tests in a dedicated file
These basic tests are generic and should be used independently of the
driver, depending on the plaftorm characteristics.

Change-Id: I38161b659ef2a23fd30a56e1c9b1bd98461a2fe4
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@foss.st.com>
2022-01-05 11:47:46 +01:00
Nicolas Le Bayon 06e55dc842 refactor(st-ddr): reorganize generic and specific elements
stm32mp_ddrctl structure contains DDRCTRL registers definitions.
stm32mp_ddr_info contains general DDR information extracted from DT.
stm32mp_ddr_size moves to the generic side.
stm32mp1_ddr_priv contains platform private data.

stm32mp_ddr_dt_get_info() and stm32mp_ddr_dt_get_param() allow to
retrieve data from DT. They are located in new generic c/h files in
which stm32mp_ddr_param structure is declared. Platform makefile
is updated.

Adapt driver with this new classification.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Change-Id: I4187376c9fff1a30e7a94407d188391547107997
2022-01-05 11:09:59 +01:00
Yann Gautier 88f4fb8fa7 feat(stm32mp1): allow configuration of DDR AXI ports number
A new flag STM32MP_DDR_DUAL_AXI_PORT is added, and enabled by default.
It will allow choosing single or dual AXI ports for DDR.

Change-Id: I48826a66a6f4d18df87e081c0960af89ddda1b9d
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2022-01-05 11:09:59 +01:00
Yann Gautier ba7d2e2698 refactor(st-ddr): update parameter array initialization
Force alignment of the size of parameters array with the expected
value by the binding.
The registers dynamic structs are removed as not used in TF-A.

Change-Id: I7a41f355a435f54fbf23f468cca87c7f8f7e69e8
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2022-01-05 11:09:59 +01:00
Nicolas Le Bayon 5def13eb01 feat(st-ddr): 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.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Change-Id: I7ac1c77c21ebc30315b532741f2f255c2312d5b2
2022-01-05 11:09:59 +01:00
Patrick Delaunay 26cf5cf6d6 refactor(stm32mp1): 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 CubeMX.

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 "st,phy-cal"

After this patch the built-in calibration is always executed.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Change-Id: I3fc445520c259f7f05730aefc25e64b328bf7159
2022-01-05 11:09:59 +01:00
Yann Gautier a078134e23 fix(st-ddr): correct DDR warnings
Replace %d with %u in logs, to avoid warning when
-Wformat-signedness is enabled.
And correct the order of includes.

Change-Id: I7c711a37fc1deceb8853831a8a09ae50422859c9
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
2022-01-05 09:19:05 +01:00
Yann Gautier d50e7a71cb fix(st-sdmmc2): check regulator enable/disable return
The issue was reported by Coverity [1]. The return of the functions
regulator_disable() and regulator_enable() was not checked.
If they fail, this means there is an issue either with PMIC or I2C.
The board should the stop booting with a panic().

[1] https://scan4.scan.coverity.com/reports.htm#v47771/p11439/mergedDefectId=374565

Change-Id: If5dfd5643c210e03ae4b1f4cab0168c0db89f60e
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2022-01-04 15:25:04 +01:00
André Przywara e752fa4a4c Merge "feat(allwinner): allow to skip PMIC regulator setup" into integration 2022-01-01 02:16:14 +01:00
Wing Li c5ee8588bf fix(ufs): delete call to inv_dcache_range for utrd
The utrd struct is allocated on the stack by ufs_check_resp's caller.
Invalidating the utrd struct is unnecessary since it's only read from,
and can cause other values stored on the stack (e.g. link register) to
be inadvertently invalidated.

Change-Id: Icd455b52beb2677fafc083d68d0bfa0645b7194b
Signed-off-by: Wing Li <wingers@google.com>
2021-12-28 10:41:14 -08:00
Andre Przywara 67412e4d7a feat(allwinner): allow to skip PMIC regulator setup
For somewhat historical reasons we are doing some initial PMIC regulator
setup in BL31, as U-Boot does not (yet) have a PMIC driver. This worked
fine so far, but there is at least one board (OrangePi 3) that gets upset,
because the Ethernet PHY needs some *coordinated* bringup of *two*
regulators.

To avoid custom hacks, let's introduce a build option to keep doing the
regulator setup in TF-A. Defining SUNXI_SETUP_REGULATORS to 0 will break
support for some devices on some boards in U-Boot (Ethernet and HDMI),
but will allow to bring up the OrangePi 3 in Linux correctly. We keep
the default at 1 to not change the behaviour for all other boards.

After U-Boot gained proper PMIC support at some point in the future, we
will probably change the default to 0, to get rid of the less optimal
PMIC code in TF-A.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: Ie8e2583d0396f6eeaae8ffe6b6190f27db63e2a7
2021-12-27 15:32:22 +00:00
Madhukar Pappireddy 93b153b5bf Merge changes from topic "st_regulator" into integration
* changes:
  feat(st-sdmmc2): manage cards power cycle
  feat(stm32mp1): register fixed regulator
  feat(st-drivers): introduce fixed regulator driver
  refactor(st): update CPU and VDD voltage get
  refactor(stm32mp1-fdts): update regulator description
  refactor(st-pmic): use regulator framework for DDR init
  feat(st-pmic): register the PMIC to regulator framework
  refactor(st-pmic): split initialize_pmic()
  feat(stm32mp1): add regulator framework compilation
  feat(regulator): add a regulator framework
  feat(stpmic1): add new services
  feat(stpmic1): add USB OTG regulators
  refactor(st-pmic): improve driver usage
  refactor(stpmic1): set stpmic1_is_regulator_enabled() as boolean
  refactor(stm32mp1): re-order drivers init
2021-12-24 00:13:50 +01:00
Yann Gautier 258bef913a feat(st-sdmmc2): manage cards power cycle
To correctly initialize the MMC devices, a power cycle is required.
For this we need to:
- disable vmmc-supply regulator
- make the power cycle required for SDMMC2 peripheral
- enable regulators

Change-Id: I2be6d9082d1cc4c864a82cf2c31ff8522e2d31a2
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2021-12-22 14:04:32 +01:00
Pascal Paillet 5d6a2646f7 feat(st-drivers): introduce fixed regulator driver
Fixed regulator is mainly used when no pmic is available

Change-Id: Ib6a998684bcb055ba95a093bee563372d9051474
Signed-off-by: Pascal Paillet <p.paillet@st.com>
2021-12-22 14:04:32 +01:00
Pascal Paillet 0ba71ac901 refactor(st-pmic): use regulator framework for DDR init
Use regulator framework for DDR initialization.

Change-Id: I9dffe499ca12cdc35904de7daf2dda821b267a31
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
2021-12-22 14:04:32 +01:00
Yann Gautier 85fb175b5e feat(st-pmic): register the PMIC to regulator framework
Register the PMIC to the regulator framework.

Change-Id: Ic825a8ef08505316db3dbd5944d62ea907f73c4a
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
2021-12-22 14:04:32 +01:00
Nicolas Le Bayon ae7792e058 refactor(st-pmic): split initialize_pmic()
print_pmic_info_and_debug() prints the PMIC version ID and displays
regulator information if debug is enabled.
It is under DEBUG flag and called after initialize_pmic() in BL2.

Change-Id: Ib81a625740b7ec6abb49cfca05e44c69efaa4718
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2021-12-22 14:04:32 +01:00
Pascal Paillet d5b4a2c4e7 feat(regulator): add a regulator framework
Add a regulator framework to:
- provide an interface to consumers and drivers,
- connect consumers with drivers,
- handle most of devicetree-parsing,
- handle always-on and boot-on regulators,
- handle min/max voltages,

Change-Id: I23c939fdef2c71a416c44c9de332f70db0d2aa53
Signed-off-by: Pascal Paillet <p.paillet@st.com>
2021-12-22 14:04:32 +01:00
Pascal Paillet ea552bf5a5 feat(stpmic1): add new services
Add support for ICC, sink mode, bypass mode,
active discharge and list voltages.
Handle LDO3 sink source mode in a different way to avoid
setting voltage while in sink source mode.

Change-Id: Ib1b909fd8a153f542917f650e43e24317a570534
Signed-off-by: Pascal Paillet <p.paillet@st.com>
2021-12-22 14:04:32 +01:00
Etienne Carriere 13fbfe046e feat(stpmic1): add USB OTG regulators
Add regulators boost, pwr_sw1 and pwr_sw2 regulators related to
USB OTG supply BOOST, SW_OTG and SWIN/SWOUT. These regulators are
needed since manipulated during the suspend/resume power sequence
as per FDT description for stm32mp15x-xxx boards from
STMicroelectronics.

Change-Id: I6217de707e49882bd5a9100db43e0d354908800d
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2021-12-22 14:04:32 +01:00
Nicolas Le Bayon c77c7d9e30 refactor(st-pmic): improve driver usage
Store status of dt_pmic_status() as local static variable,
this avoids parsing DT several times.
In the same way, store nodes in dt_pmic_i2c_config() and
in dt_get_pmic_node() as local static variables.

Change-Id: I4585e9dfdde2847a369bffcc6f2b39ecc2b74de1
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2021-12-22 14:04:32 +01:00
Nicolas Le Bayon 16e56a75de refactor(stpmic1): set stpmic1_is_regulator_enabled() as boolean
Improve use and readability.

Change-Id: Ia99fc38287f36c9dd12bfe51352afa5da68c0e47
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
2021-12-22 14:04:32 +01:00
Yann Gautier 33667d299b feat(st): use newly introduced clock framework
Replace calls to stm32mp_clk_enable() / stm32mp_clk_disable() /
stm32mp_clk_get_rate() with clk_enable() / clk_disable() /
clk_get_rate().

Change-Id: I15d2ce57b9499211fa522a1b53eeee9cf584c111
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
2021-12-22 13:08:09 +01:00
Gabriel Fernandez 847c6bc8e6 feat(clk): add a minimal clock framework
This is mainly a clock interface with clk_ops callbacks.
Those callbacks are: enable, disable, get_rate, set_parent,
and is_enabled.
This framework is compiled for STM32MP1.

Change-Id: I5119a2aeaf103ceaae7a60d9e423caf0c148d794
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
2021-12-22 13:07:23 +01:00
Yann Gautier 737ad29bf9 feat(stm32_gpio): add a function to reset a pin
Add set_gpio_reset_cfg() to set a pin in its reset configuration:
analog, no-pull, speed low, and its secure configuration, thanks to
stm32_gpio_is_secure_at_reset().

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I7b73c3636859f97fcc57f81cf68b42efc727922e
2021-12-14 09:25:19 +01:00
Madhukar Pappireddy 20c8c230c8 Merge "fix(scmi): make msg_header variable volatile" into integration 2021-12-13 20:12:02 +01:00
Takuya Sakata ffb725be98 feat(plat/rcar3): modify type for Internal function argument
Modify the type of the variable that stores the value for MPIDR
in the internal function from uint64_t to u_register_t.

Signed-off-by: Koichi Yamaguchi <koichi.yamaguchi.zb@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Ib5bda93d5432e0412132bddf41ead8ee3fcf9e46
2021-12-12 13:07:06 +01:00
Takuya Sakata d9912cf3d1 feat(plat/rcar3): modify sequence for update value for WUPMSKCA57/53
Add new function so that the value of bit at WUPMSKCA57/53,
which points to CPU other than the BOOT CPU, is 1 at initialization.
Modify sequence so that value of each bit for CPU at WUPMSKCA57/53 is
basically 0 and target bit value is changed to 1 only when CPU_OFF.

Signed-off-by: Koichi Yamaguchi <koichi.yamaguchi.zb@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Id5dafc04e1dbaf265c8b67b903c335bb1af49914
2021-12-12 13:07:02 +01:00
Takuya Sakata 82bb6c2e88 fix(plat/rcar3): fix to bit operation for WUPMSKCA57/53
Change internal function to call when updating value for WUPMSKCA57/53.

Signed-off-by: Koichi Yamaguchi <koichi.yamaguchi.zb@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Id20e65e27861dd73a149ff487123859581a9b5c5
2021-12-12 13:06:59 +01:00
Madhukar Pappireddy 9554a186a7 Merge changes from topic "a3700-comphy-fixes-1" into integration
* changes:
  refactor(drivers/marvell/comphy-3700): rename Clock Source Low value constants
  refactor(drivers/marvell/comphy-3700): rename Clock Source Low register constants
  refactor(drivers/marvell/comphy-3700): rename Reset and Clock Control register constants
  refactor(drivers/marvell/comphy-3700): rename Lane Status 1 register constants
  refactor(drivers/marvell/comphy-3700): rename Miscellaneous Control register constants
  refactor(drivers/marvell/comphy-3700): rename Idle Sync Enable register constants
  refactor(drivers/marvell/comphy-3700): unify Generation Settings register values
  refactor(drivers/marvell/comphy-3700): unify Generation Settings register names
  refactor(drivers/marvell/comphy-3700): drop _ADDR suffixes
  refactor(drivers/marvell/comphy-3700): drop _REG prefixes and suffixes
  refactor(drivers/marvell/comphy-3700): move and add comment for COMPHY_RESERVED_REG
  refactor(drivers/marvell/comphy-3700): move Miscellaneous Control 0 register definition
  refactor(drivers/marvell/comphy-3700): rename PHY_GEN_USB3_5G to PHY_GEN_MAX_USB3_5G
  refactor(drivers/marvell/comphy-3700): rename Digital Loopback Enable register constant
  fix(drivers/marvell/comphy): change reg_set() / reg_set16() to update semantics
  fix(drivers/marvell/comphy-3700): use reg_set() according to update semantics
  fix(drivers/marvell/comphy-3700): fix comments about selector register values
  fix(drivers/marvell/comphy-3700): fix comment about COMPHY status register
  fix(drivers/marvell/comphy-3700): fix reference clock selection value names
  fix(drivers/marvell/comphy-3700): drop MODE_REFDIV constant
  fix(drivers/marvell/comphy-3700): fix SerDes frequency register value name
  fix(drivers/marvell/comphy-3700): fix Generation Setting registers names
  fix(drivers/marvell/comphy-3700): fix PIN_PU_IVREF register name
2021-12-10 16:06:16 +01:00
Manish Pandey be1d8b24f5 Merge "feat(stm32mp1): preserve the PLL4 settings for USB boot" into integration 2021-12-10 14:19:15 +01:00
Marek Behún e62ae2e27d refactor(drivers/marvell/comphy-3700): rename Clock Source Low value constants
The constants BUNDLE_PERIOD_SCALE and PLL_READY_DLY refer to two
multi-bit registers within the Clock Source Low register. These
constants are used as masks for those registers (and values are not
defined since we are writing zeros to them).

Give them the _MASK suffix.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Id469d0ab4c755d2d6a0150a1ade33dd9d0293667
2021-12-09 01:29:13 +01:00
Marek Behún e585c84ce5 refactor(drivers/marvell/comphy-3700): rename Clock Source Low register constants
The register at offset 0x1C3 is called Clock Source Low in functional
specification, but we use constant name GLOB_CLK_SRC_LO. Rename it to
RST_CLK_CTRL instead.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: If7ca460cb166f3828678e1e09c4e6caf5bb77770
2021-12-09 01:29:13 +01:00
Marek Behún 6a14ac780f refactor(drivers/marvell/comphy-3700): rename Reset and Clock Control register constants
The register at offset 0x1C1 is called Reset and Clock Control in
functional specification, but we use constant name GLOB_PHY_CTRL0.
Rename it to RST_CLK_CTRL instead.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I5dac8913bd0686d4f5bd74b91cb7d07ba06df72b
2021-12-09 01:29:13 +01:00
Marek Behún 6eb043791e refactor(drivers/marvell/comphy-3700): rename Lane Status 1 register constants
Rename the Lane Status 1 register constants from LANE_STATUS1 to
LANE_STAT1, to use an abbreviation similar to that for Lane
Configuration registers (where we use LANE_CFGx instead of LANE_CONFIGx
or LANE_CONFIGURATIONx).

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ie329d5a93615efe261802a2f027475b602a5c840
2021-12-09 01:29:13 +01:00
Marek Behún 9cf978c6c4 refactor(drivers/marvell/comphy-3700): rename Miscellaneous Control register constants
Rename the Miscellaneous Control register constants from MISC_REGx to
MISC_CTRLx.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I4d43bbda44b090de4ecf2d52cfc468f9683cc3b5
2021-12-09 01:29:13 +01:00
Marek Behún 86f6b55d47 refactor(drivers/marvell/comphy-3700): rename Idle Sync Enable register constants
According to the functional specification, the register at offset 0x48
is called Idle Sync Enable, not Unit Control or some such.

Rename the constants.

Only bit 12 of this register is defined, all other bits are reserved.
But for some reason the code needs the default value of the other bits,
so we also rename constant UNIT_CTRL_DEFAULT_VALUE to
IDLE_SYNC_EN_DEFAULT_VALUE.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ia4f80f945a8f31c190cd9a1875d50d892e72825f
2021-12-09 01:29:13 +01:00
Marek Behún 3f9a089297 refactor(drivers/marvell/comphy-3700): unify Generation Settings register values
Generation Settings registers have the same layout for different
generations and same setting (i.e. Generation 2 Settings 2 register has
the same layout as Generation 3 Settings 2).

So it does not make sense to prefix the constants for Settings 2 with
G3.

Instead change the prefixes to GSx_ for settings register x.

For Settings 2 of Gen 2 and Gen 3 we have some definitions in the first
and some in the second. Move them all to the first defined register (in
this case Gen 2, since the constant for Gen 1 is not defined because it
is not used).

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I15c337eb58aa37fd99fe388fd59373aa325a3a92
2021-12-09 01:29:13 +01:00
Marek Behún 30264e9788 refactor(drivers/marvell/comphy-3700): unify Generation Settings register names
Sometimes we call the constants GENx_SET_y, sometimes GENx_SETTINGS_y,
and sometimes GENx_SETTING_y.

Unify this into GENx_SETy.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I3810fb52b2897fe6730ef6e58d434c47cfef14a9
2021-12-09 01:29:13 +01:00
Marek Behún b7b0575d12 refactor(drivers/marvell/comphy-3700): drop _ADDR suffixes
COMPHY register addresses are defined twice
- once for indirect access, where the constants are of the form
  COMPHY_<register_name>
- once for direct access, with constants of the form
  <register_name>_ADDR

But sometimes the first case also has this _ADDR suffix (and other times
not).

Drop it from those places to unify how we define these registers.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ibf95be8ade231d0e42258f40614a5f0974d280bd
2021-12-09 01:29:13 +01:00
Marek Behún b3491336e0 refactor(drivers/marvell/comphy-3700): drop _REG prefixes and suffixes
Some register constants are defined with _REG suffix or REG_ prefix, but
others are not. Unify this by dropping these prefixes / suffixes.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I1ba331c0a4686093ee250bcaf3297349956ac9a8
2021-12-09 01:29:13 +01:00
Marek Behún 580742d003 refactor(drivers/marvell/comphy-3700): move and add comment for COMPHY_RESERVED_REG
The COMPHY_RESERVED_REG (offset 0x0E) is currently defined between
COMPHY_KVCO_CAL_CTRL (0x02) and COMPHY_DIG_LOOPBACK_EN (0x23).

But this register does not come from PHY lane register space. The
address 0x0E is not relative to PHY lane registers base address.

It only exists in the indirect register space, before PHY lane 2
registers (which start at address 0x200).

Move its definition in the header and add a comment.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ie726384b980ace83d8ea327df09d928db74c2ab7
2021-12-09 01:29:13 +01:00
Marek Behún 66f07bd018 refactor(drivers/marvell/comphy-3700): move Miscellaneous Control 0 register definition
Move the definitions for the Miscellaneous Control 0 register (offset 0x4F),
to leave the registers sorted according to their offsets.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I9864be5bd00181d21c9334219be4f89c4f032c8b
2021-12-09 01:29:13 +01:00
Marek Behún 669d3dc5ea refactor(drivers/marvell/comphy-3700): rename PHY_GEN_USB3_5G to PHY_GEN_MAX_USB3_5G
The register name for the value PHY_GEN_USB3_5G is PHY_GEN_MAX. We
already define the mask constant as PHY_GEN_MAX_MASK. Thus also the
value name should be prefixed with PHY_GEN_MAX_.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ibf72a66d2e65e240ed2cdbc3a301dbd793e2cb34
2021-12-09 01:29:13 +01:00
Marek Behún 4c995d2d1b refactor(drivers/marvell/comphy-3700): rename Digital Loopback Enable register constant
The register at offset 0x23 is called Digital Loopback Enable, but the
constant is COMPHY_LOOPBACK_REG0, as if there were some LOOPBACK_REG1
register or something, which there is not.

Rename the constant to COMPHY_DIG_LOOPBACK_EN.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ie88bdd864e2c9ab7e8de70ed7f3a13ee8f08ff79
2021-12-09 01:29:13 +01:00
Marek Behún 95c26d6489 fix(drivers/marvell/comphy): change reg_set() / reg_set16() to update semantics
Currently reg_set() and reg_set16() are implemented via
mmio_clrsetbits_32(), meaning that first bits from mask are cleared,
then data bits are set.

But these function are used everywhere according to update semantics,
where only those bits that are in mask are allowed to be changed.

Example from phy-comphy-cp110.c
  mask = HPIPE_RST_CLK_CTRL_PIPE_RST_MASK;
  data = 0x1 << HPIPE_RST_CLK_CTRL_PIPE_RST_OFFSET;
  /* Set PHY datapath width mode for V0 */
  mask |= HPIPE_RST_CLK_CTRL_FIXED_PCLK_MASK;
  data |= 0x0 << HPIPE_RST_CLK_CTRL_FIXED_PCLK_OFFSET;
  /* Set Data bus width USB mode for V0 */
  mask |= HPIPE_RST_CLK_CTRL_PIPE_WIDTH_MASK;
  data |= 0x0 << HPIPE_RST_CLK_CTRL_PIPE_WIDTH_OFFSET;
  /* Set CORE_CLK output frequency for 250Mhz */
  mask |= HPIPE_RST_CLK_CTRL_CORE_FREQ_SEL_MASK;
  data |= 0x0 << HPIPE_RST_CLK_CTRL_CORE_FREQ_SEL_OFFSET;
  reg_set(hpipe_addr + HPIPE_RST_CLK_CTRL_REG, data, mask);

Change the implementation to update semantics by anding data with mask.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ic72a8f64916274e08baef0b3f4c44a4fa07c1a6c
2021-12-09 01:29:07 +01:00
Marek Behún 4d01bfe665 fix(drivers/marvell/comphy-3700): use reg_set() according to update semantics
Currently reg_set() and reg_set16() are almost everywhere (both in
phy-comphy-3700.c and phy-comphy-cp110.c) used as if the semantics were
that of register update function (only bits that are set in mask are
updated):
  reg_set(addr, data, mask) {
    *addr = (*addr & ~mask) | (data & mask);
  }

This comes both from names of arguments (data and mask), and from usage.

But both functions are in fact implemented via mmio_clrsetbits_32(), so
they actually first clear bits from mask and then set bits from data:
  reg_set(addr, data, mask) {
    *addr = (*addr & ~mask) | data;
  }

There are only two places where this is leveraged (where some bits are
put into data argument but they are not put into the mask argument).

Fix those two usages to allow to convert the implementation from
clrsetbits semantics to update semantics.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: Ib29a1dd7edcdee7a39c4752dbc9dfcd600d8cb5c
2021-12-09 01:28:45 +01:00