Hai Pham [Tue, 28 Feb 2023 21:34:42 +0000 (22:34 +0100)]
ARM: dts: renesas: Add R8A779F0 S4 DT
Add initial DT for R8A779F0 S4 SoC. Based on Linux next
commit 058f4df42121 ("Add linux-next specific files for 20230228")
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Sync with Linux next 20230228, update commit message]
Hai Pham [Tue, 28 Feb 2023 21:34:41 +0000 (22:34 +0100)]
ARM: rmobile: Turn R-Car V3U into R-Car Gen4
Despite the name, R-Car V3U is the first member of the R-Car Gen4
family [1]. Hence reflect this in related files, select appropriate
configuration options and split DT build into its own GEN4 entry.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Deduplicate DTC_FLAGS addition using RCAR_64 symbol
Update commit message]
LUU HOAI [Tue, 28 Feb 2023 21:34:40 +0000 (22:34 +0100)]
pinctrl: renesas: Add R8A779F0 S4 PFC tables
Add pinctrl tables for R8A779F0 S4 SoC.
Based on Linux next 20230228 PFC tables tables up to
commit 058f4df42121 ("Add linux-next specific files for 20230228")
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: LUU HOAI <hoai.luu.ub@renesas.com> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Use RCAR_64 Kconfig, sync with Linux next 20230228]
Hai Pham [Tue, 28 Feb 2023 21:34:39 +0000 (22:34 +0100)]
clk: renesas: Add R8A779F0 S4 clock tables
Add clock tables for R8A779F0 S4 SoC
Based on Linux commit 24aaff6a6ce4 ("clk: renesas: cpg-mssr: Add support
for R-Car S4-8") by Yoshihiro Shimoda and sync the tables up to Linux next
commit 058f4df42121 ("Add linux-next specific files for 20230228")
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Sync with Linux next 20230228 . Update from CLK to CPG core driver]
Marek Vasut [Tue, 28 Feb 2023 21:34:38 +0000 (22:34 +0100)]
clk: renesas: Update R-Car Gen3 driver Gen4 support
Update R-Car Gen4 support in Gen3 clock driver. This patch renames the
V3U clock parts to Gen4 and extends them by new PLL2, PLL3, PLL4, PLL6
as well as SDSRC clock which use undocumented bits so far, and RPCSRC
clock which uses its own more capable divider table. The Gen4 module
standby and reset tables are also updated.
This patch makes use of union to alias Gen3 and more extensive Gen4
PLL tables, as the driver cannot ever be instantiated on hardware
that would identify itself as both Gen3 and Gen4.
The V3U clock driver is updated to match Gen4 clock driver behavior,
it is augmented with a more extensive PLL table and a valid MODEMR
register offset.
This supersedes "clk: renesas: Introduce R-Car Gen4 CPG driver"
from Hai Pham as the R-Car Gen3 and Gen4 clock core drivers are
extremely similar. That implementation was in turn based on Linux
commit 470e3f0d0b15 ("clk: renesas: rcar-gen4: Introduce R-Car Gen4 CPG driver")
by Yoshihiro Shimoda .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Add definitions for R8A779F0 S4 CPG Core Clock headers from Linux next
commit 058f4df42121 ("Add linux-next specific files for 20230228")
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Tho Vu <tho.vu.wh@renesas.com> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Update to linux next 20230228 state]
Tho Vu [Tue, 28 Feb 2023 21:34:36 +0000 (22:34 +0100)]
dt-bindings: power: Add R8A779F0 S4 SYSC power domain definitions
Add power domain indices for R-Car S4 (R8A779F0) from Linux next
commit 058f4df42121 ("Add linux-next specific files for 20230228")
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Tho Vu <tho.vu.wh@renesas.com> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Update to linux next 20230228 state]
Hai Pham [Tue, 28 Feb 2023 21:29:19 +0000 (22:29 +0100)]
serial: sh: Add HSCIF support for R-Car SoC
Provide the basic HSCIF support for R-Car SoC.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Fill in HSSRR offset for Gen2 and SCBRR calculation for Gen2 and Gen3] Reviewed-by: Simon Glass <sjg@chromium.org>
Hai Pham [Tue, 28 Feb 2023 21:29:18 +0000 (22:29 +0100)]
serial: sh: Add R-Car Gen4 support
Add R-Car Gen4 family support. The basic function is as same as previous
R-Car Generation.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Swap RZ/A1 and Gen4 to keep the GenN sequence, use RCAR_64]
Hai Pham [Fri, 7 Apr 2023 15:12:17 +0000 (17:12 +0200)]
net: ravb: Add R-Car Gen4 support
Add support for R-Car Gen4 SoCs and a matching DT compatible.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Drop SoC specific compatible, use RCAR_64 Kconfig symbol, update commit message]
Hai Pham [Tue, 28 Feb 2023 21:24:06 +0000 (22:24 +0100)]
mmc: renesas-sdhi: Add R-Car Gen4 support
Support R-Car Gen4 family. The default quirk is similar to previous
generation.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # Use RCAR_64 Kconfig
Marek Vasut [Tue, 28 Feb 2023 21:18:13 +0000 (22:18 +0100)]
mmc: tmio: Replace ifdeffery with IS_ENABLED/CONFIG_IS_ENABLED macros
Instead of #if and #ifdef, use IS_ENABLED and CONFIG_IS_ENABLED macros.
This improves build test coverage. The CONFIG_SPL_BUILD must remain an
ifdef, as CONFIG_SPL_STACK may not always be defined, e.g. in U-Boot
proper build. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Marek Vasut [Tue, 28 Feb 2023 21:18:12 +0000 (22:18 +0100)]
mmc: tmio: Check 'addr' width before checking for 64bit limitation
The 64bit limitation check is compiled and optimized out on 32bit
platforms, but generates a type width warning:
drivers/mmc/tmio-common.c: In function ‘tmio_sd_addr_is_dmaable’:
drivers/mmc/tmio-common.c:376:26: warning: right shift count >= width of type [-Wshift-count-overflow]
376 | if (addr >> 32)
| ^~
Fix the warning by checking the addr type width to see whether the
shift even makes sense in the first place. The width check is also
optimized out at compile time.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Hai Pham [Tue, 28 Feb 2023 21:25:51 +0000 (22:25 +0100)]
i2c: rcar_i2c: Add R-Car Gen4 support
Add support for R-Car Gen4 SoCs into the driver.
While I2C on R-Car Gen4 does support some extra features (Slave Clock
Stretch Select), for now it is treated the same as I2C on R-Car Gen3,
which let us share the same driver.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # Use RCAR_64 Kconfig Reviewed-by: Heiko Schocher <hs@denx.de>
Tom Rini [Fri, 7 Apr 2023 14:44:19 +0000 (10:44 -0400)]
Merge branch '2023-04-06-assorted-updates'
- Make use of the semi-formal "fallthrough" mechanism, update env tools
to use /run for lockfile, add 2048 game (as a way to test console
changes), update some CONFIG option logic in Kconfig, have lmb command
show regions in use, remove some duplicate serial code, add
__gnu_thumb1_case_si code and fix m68k custodian email address.
Hai Pham [Tue, 28 Feb 2023 21:23:07 +0000 (22:23 +0100)]
gpio: renesas: Add R-Car Gen4 support
Add support for the GPIO controller block in the R-Car Gen4 family.
It has a General Input Enable Register (INEN), whose reset state is to
have all inputs disabled.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: - Enable DTO support by default
- Sort the Kconfig lists
- Select RCAR_64 Kconfig option to pull in all the shared
Kconfig options with Gen3, and use where applicable to
deduplicate entries.
- Fix reference [2] typo in commit message
- Drop config options moved to Kconfig, rename rest to CFG_
accordingly to synchronize with upstream changes. Drop
removed CONFIG_VERY_BIG_RAM.
- Move board size limit to arch/Kconfig
- Move GICR_BASE to headers instead of common config]
Marek Vasut [Sun, 19 Mar 2023 17:09:42 +0000 (18:09 +0100)]
phy: Add .set_mode and .set_speed callbacks
Add two new callbacks matching the Linux ones. The .set_mode is used to set
PHY mode and submode, where mode is either USB, Ethernet, and so on, while
submode is e.g. for Ethernet case RGMII, RMII, and so on. The .set_speed is
used to configure link speed into the PHY. Unlike the existing configure
callback, which is used to pass arbitrary custom information to the PHY,
these two callbacks are used to pass standardized set of information to
the PHY.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Marek Vasut [Sun, 19 Mar 2023 17:08:10 +0000 (18:08 +0100)]
net: phy: marvell10g: Adapt Marvell 10G PHY driver from Linux
Pull Marvell 10G PHY driver from Linux 6.1.y as of commit d6d29292640d3 ("net: phy: marvell10g: select host interface configuration")
and heavily adapt to match U-Boot PHY framework. Support for
hwmon is removed as is much other functionality which could
not be tested, this results in much simpler driver which can
only bring the PHY up and set MAC type.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Sun, 19 Mar 2023 17:08:09 +0000 (18:08 +0100)]
net: phy: Add MDIO PCS 2.5G and 5G speed macros from Linux
Add MDIO PCS 2.5G and 5G speed macros from Linux 5.1.y as of commit 7fd8afa8933a0 ("net: phy: Add generic support for 2.5GBaseT and 5GBaseT")
This is used by the upcoming Marvell 10G PHY driver.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Sun, 19 Mar 2023 17:08:08 +0000 (18:08 +0100)]
net: phy: Add phy_read_mmd_poll_timeout() from Linux
Add phy_read_mmd_poll_timeout() from Linux 5.7.y as of commit bd971ff0b7392 ("net: phy: introduce phy_read_mmd_poll_timeout macro")
This is used by the upcoming Marvell 10G PHY driver.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Sun, 19 Mar 2023 17:08:07 +0000 (18:08 +0100)]
net: phy: Add phy_modify_mmd() and phy_modify_mmd_changed() from Linux
Add phy_modify_mmd()/phy_modify_mmd_changed() from Linux 5.1.y as of commit b8554d4f7288f ("net: phy: add register modifying helpers returning 1 on change")
This is used by the upcoming Marvell 10G PHY driver.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Sun, 19 Mar 2023 17:08:06 +0000 (18:08 +0100)]
net: phy: marvell: Import and use marvell_phy.h from Linux
Import marvell_phy.h from Linux 5.14.y as of commit a5de4be0aaaa6 ("net: phy: marvell10g: fix differentiation of 88X3310 from 88X3340")
and use it in marvell PHY driver instead of current ad-hoc macros.
Two of the PHY IDs are unknown to Linux, 88E1149S and 88E1680, for
those two, only sync the length of the hexadecimal number to 8 digits.
No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Tue, 21 Mar 2023 17:25:54 +0000 (18:25 +0100)]
net: phy: Synchronize PHY interface modes with Linux
Synchronize PHY interface modes with Linux next 6.2.y commit: 0194b64578e90 ("net: phy: improve phy_read_poll_timeout")
Retain LX2160A/LX2162A PHY modes as those are not yet supported
by the Linux kernel, but isolate those with ifdeffery.
Isolate NCSI which are also not supported by Linux kernel. Note
that the ifdeffery cannot be avoided with IS_ENABLED() here due
to compilation of the entire conditional, which would fail in
case NCSI symbols are not available.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Tue, 21 Mar 2023 17:25:53 +0000 (18:25 +0100)]
net: mvpp2: Replace PHY_INTERFACE_MODE_SFI with 5GBASER/10GBASER/XAUI
Replace PHY_INTERFACE_MODE_SFI with PHY_INTERFACE_MODE_5GBASER,
PHY_INTERFACE_MODE_10GBASER and PHY_INTERFACE_MODE_XAUI to match
Linux PHY interface modes.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Tue, 21 Mar 2023 17:25:52 +0000 (18:25 +0100)]
net: mvpp2: Drop PHY_INTERFACE_MODE_SGMII_2500 support
This mode does not seem to be well defined and used anywhere, remove support for it.
Based on discussion:
- 1000baseX does c37 AN of duplex+pause
- SGMII does AN of duplex+pause+speed, at lower speed bytes are repeated 10x/100x
- 2500baseX does not do AN, or does very different c73 AN
- SGMII 2500 behavior is unclear
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Marek Vasut [Sun, 19 Mar 2023 17:03:17 +0000 (18:03 +0100)]
net: phy: Only call phy_init() on systems needing manual relocation
The phy_init() is now used only to perform manual relocation of PHY
driver callbacks. Wrap it in ifdeffery and only call it on systems
which still require manual relocation, i.e. m68k .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:16 +0000 (18:03 +0100)]
net: phy: Re-inline phy_drv_reloc()
Wrap phy_drv_reloc() back into phy_init() to reduce ifdeffery,
since phy_drv_reloc() is now called only from one call site.
No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:15 +0000 (18:03 +0100)]
net: phy: Drop unused phy_register()
This function is no longer used, drop it.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:14 +0000 (18:03 +0100)]
net: phy: Drop static phy_drivers list
The static phy_drivers list is superseded by linker list of struct phy_drivers
now that all drivers have been converted to the later. Drop the phy_drivers
list as well as list_head from struct phy_driver.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:13 +0000 (18:03 +0100)]
net: phy: gen10g: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:12 +0000 (18:03 +0100)]
net: phy: genphy: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:11 +0000 (18:03 +0100)]
net: phy: xilinx-gmii2rgmii: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:10 +0000 (18:03 +0100)]
net: phy: ncsi: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:09 +0000 (18:03 +0100)]
net: phy: fixed: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:08 +0000 (18:03 +0100)]
net: phy: mscc: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:07 +0000 (18:03 +0100)]
net: phy: intel-xway: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:06 +0000 (18:03 +0100)]
net: phy: xilinx: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:05 +0000 (18:03 +0100)]
net: phy: vitesse: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:04 +0000 (18:03 +0100)]
net: phy: ti: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
This particular PHY driver is slightly more spread out across additional
source files. Since the phy_register() calls are no longer necessary, all
the registration calls across those source files is dropped. Furthermore,
the Makefile can now be updated to only compile generic TI PHY support if
matching Kconfig symbol is enabled and the ifdeffery in the generic TI PHY
driver can be dropped.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:03 +0000 (18:03 +0100)]
net: phy: teranetics: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:02 +0000 (18:03 +0100)]
net: phy: smsc: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:01 +0000 (18:03 +0100)]
net: phy: realtek: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:03:00 +0000 (18:03 +0100)]
net: phy: nxp-tja11xx: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:59 +0000 (18:02 +0100)]
net: phy: nxp-c45-tja11xx: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:58 +0000 (18:02 +0100)]
net: phy: natsemi: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:57 +0000 (18:02 +0100)]
net: phy: meson-gxl: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:56 +0000 (18:02 +0100)]
net: phy: ksz90x1: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:55 +0000 (18:02 +0100)]
net: phy: ksz8xxx: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:54 +0000 (18:02 +0100)]
net: phy: marvell: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:53 +0000 (18:02 +0100)]
net: phy: lxt: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:52 +0000 (18:02 +0100)]
net: phy: et1011c: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:51 +0000 (18:02 +0100)]
net: phy: mv88e61xx: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:50 +0000 (18:02 +0100)]
net: phy: davicom: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:49 +0000 (18:02 +0100)]
net: phy: cortina: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:48 +0000 (18:02 +0100)]
net: phy: ca_phy: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:47 +0000 (18:02 +0100)]
net: phy: broadcom: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:46 +0000 (18:02 +0100)]
net: phy: b53: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:45 +0000 (18:02 +0100)]
net: phy: atheros: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:44 +0000 (18:02 +0100)]
net: phy: aquantia: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:43 +0000 (18:02 +0100)]
net: phy: adin: Convert to U_BOOT_PHY_DRIVER()
Convert PHY driver to U_BOOT_PHY_DRIVER() macro and drop phy_register() init call.
Converted using sed
"s@^static struct phy_driver \(.*\)_driver = \+{@U_BOOT_PHY_DRIVER(\L\1) = {"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:42 +0000 (18:02 +0100)]
net: phy: Iterate over both registered PHYs and struct phy_driver linker list
Introduce U_BOOT_PHY_DRIVER() macro which is used to add struct phy_driver
into a new linker list section containing all compiled in struct phy_driver
drivers. This is so far empty until PHY drivers are converted over to this
macro.
Iterate over both drivers registered using soon to be legacy phy_register()
as well as drivers in the new linker list when looking up a suitable PHY
driver. This way, PHY drivers can be converted over to the new macro one
driver at a time.
The relocation of callbacks for linker list based drivers now happens in
phy_init() call as the drivers are available at that point in time, and
phy_register() is not called for those drivers.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:41 +0000 (18:02 +0100)]
net: phy: Factor manual relocation into separate function
Create separate function to implement manual relocation of PHY driver
functions and make use of that function. This is a preparatory patch
for introduction of PHY driver definition using linker lists.
No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
These struct phy_driver ... instances are local to this source code
file, staticize them. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:39 +0000 (18:02 +0100)]
net: phy: cortina: Staticize PHY driver entries
These struct phy_driver ... instances are local to this source code
file, staticize them. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:38 +0000 (18:02 +0100)]
net: phy: ca_phy: Staticize PHY driver entries
These struct phy_driver ... instances are local to this source code
file, staticize them. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC)
Marek Vasut [Sun, 19 Mar 2023 17:02:37 +0000 (18:02 +0100)]
net: phy: aquantia: Staticize PHY driver entries
These struct phy_driver ... instances are local to this source code
file, staticize them. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Acked-by: Michal Simek <michal.simek@amd.com> Tested-by: Michal Simek <michal.simek@amd.com> #microblaze (MANUAL_RELOC) Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
spi: Kconfig: add dependency on CONFIG_MPC85xx for FSL_ESPI entry
The Freescale ESPI driver (CONFIG_FSL_ESPI) relies to the MPC85xx platform
(PowerPC) through arch/powerpc/include/asm/immap_85xx.h. The driver can't
compile on another architecture/platform.
gcc does not understand /* FALL TROUGH */ and emits a warning:
cmd/date.c: In function ‘do_date’:
cmd/date.c:62:20: warning:
this statement may fall through [-Wimplicit-fallthrough=]
62 | if (strcmp(argv[1],"reset") == 0) {
| ^
cmd/date.c:102:9: note: here
102 | case 1: /* get date & time */
| ^~~~
Use the fallthrough macro instead.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Tim Lee [Fri, 10 Feb 2023 09:05:39 +0000 (17:05 +0800)]
tools: env: use /run to store lockfile
According this issue https://github.com/ppp-project/ppp/issues/339.
Eventually, the dt-utils changed lock directory to fix missing /var/lock
directory error then make dt-utils can run normally.
We also have a similar issue with these two utilities fw_printenv and
fw_setenv will failed when the directory /var/lock is non-existent.
We have a custom linux distribution built with yocto (OpenBMC) that
use systemd and it deprecated the /var/lock directory.
More discussion in systemd/systemd#15668.
Thus, we sync with community's solution for uboot/tools/env utilities:
The current location /var/lock is considered legacy (at least by systemd).
Just use /run to store the lockfile and append the usual .lock suffix.
Tested:
Verified /run/lock is now present and fw_printenv can work in OpenBMC.
Signed-off-by: Tim Lee <timlee660101@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Patrick Delaunay [Wed, 22 Mar 2023 18:12:25 +0000 (19:12 +0100)]
lmb: Fix LMB_MEMORY_REGIONS flag usage
Remove test on CONFIG_LMB_MEMORY_REGIONS introduced by commit 7c1860fce4e3 ("lmb: Fix lmb property's defination under struct lmb").
This code in lmb_init() is strange, because if CONFIG_LMB_USE_MAX_REGIONS
and CONFIG_LMB_MEMORY_REGIONS are not defined, the implicit #else is empty
and the required initialization is not done:
lmb->memory.max = ?
lmb->reserved.max = ?
But this setting is not possible:
- CONFIG_LMB_USE_MAX_REGIONS not defined
- CONFIG_LMB_MEMORY_REGIONS not defined
because CONFIG_LMB_MEMORY_REGIONS and CONFIG_LMB_RESERVED_REGIONS are
defined as soon as the CONFIG_LMB_USE_MAX_REGIONS is not defined.
This patch removes this impossible case #elif and I add some
explanation in lmb.h to explain why in the struct lmb {} the lmb
property is defined if CONFIG_LMB_MEMORY_REGIONS is NOT defined.
This patch also removes CONFIG_LMB_XXX dependency on CONFIG_LMB as these
defines are used in API file lmb.h and not only in library file.
Fixes: 5e2548c1d6e03 ("lmb: Fix LMB_MEMORY_REGIONS flag usage") Reported-by: Mark Millard <marklmi@yahoo.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Acked-by: Michal Simek <michal.simek@amd.com>
On mpc832x, SPI can be either handled by CPU or QE.
In order to work in CPU mode, bit 17 of SPMODE has to
be set to 1, that bit is called OP.
Also, data is located at a different place than the one expected
by the driver today. In 8 bits mode with REV set, data to be
transmitted is located in the most significant byte while
received data is located in second byte. So perform the
necessary shifts.
In order to differentiate with other CPUs, a new compatible is
added for mpc832x: fsl,mpc832x-spi
Christophe Leroy [Wed, 18 Jan 2023 19:52:38 +0000 (20:52 +0100)]
powerpc: mpc83xx: Don't activate MMU when not necessary
At startup, some RAM is needed (for instance for stack) before
DRAM is initialised.
One way to offer such RAM, used by mpc83xx, is to lock some entries
in the cache. To do that, MMU needs to be activated.
On mpc83xx having a QUICC Engine an alternative is to user some
part of from the Multi User RAM, like done on mpc8xx for instance.
For that, the MMU is not needed.
Activating the MMU is problematic because exception vectors are not
setup yet so in case of ISI or DSI that CPU will crash and reboot.
At the time being, MMU is activated regardless.
Only activate it when locking cache entries to provide initial RAM.
mpc8xx, mpc83xx and mpc86xx have similar watchdog with almost same
memory registers.
Refactor the driver to get the register addresses from the
device tree and use the compatible to know the prescale factor.
Calculate the watchdog setup value from the provided timeout.
Don't declare it anymore as an HW_WATCHDOG, u-boot will start
servicing the watchdog early enough.
On mpc8xx the watchdog configuration register is also used for
configuring the bus monitor. So add it as an option to the watchdog
when it is mpc8xx. When watchdog is not selected, leave the
configuration of the initial SYPCR from Kconfig.
To quote the author:
Block maps are a way of looking at various sources of data through the
lens of a regular block device. It lets you treat devices that are not
block devices, like RAM, as if they were. It also lets you export a
slice of an existing block device, which does not have to correspond to
a partition boundary, as a new block device.
This is primarily useful because U-Boot's filesystem drivers only
operate on block devices, so a block map lets you access filesystems
wherever they might be located.
The implementation is loosely modeled on Linux's "Device Mapper"
subsystem, see the kernel documentation [1] for more information.
The primary use-cases are to access filesystem images stored in RAM, and
within FIT images stored on disk. See doc/usage/blkmap.rst for more
details.
The architecture is pluggable, so adding other types of mappings should
be quite easy.