April 2024 - U-Boot

[PATCH v2 00/18] rockchip: rk3399: Fix loading FIT from SD-card when booting from eMMC
by Jonas Karlman 06 May '24

06 May '24

This series enables use of FIT signature check for checksum validation in SPL and fixes loading FIT from SD-card when loading FIT from eMMC or SPI flash fails. Changes in v2: - Split series in two, this is the first part, second part will follow - Split a big patch into smaller and more reviewable parts - Change rk3399-puma to use common bss and stack addresses - Skip UART related pinctrl nodes at pre-reloc phase to not slow down boot for i.e. rk3399-puma - Rebase on latest master branch - Collect r-b tags I have runtime tested this series on following devices: - 96boards Rock960 - Khadas Edge Captain - Pine64 PineBook Pro - Pine64 RockPro64 - Radxa ROCK 4C+ - Radxa ROCK 4SE - Radxa ROCK Pi 4A - Radxa ROCK Pi 4B+ Boot times before this series using rock-pi-4-rk3399: => bootstage report Timer summary in microseconds (11 records): Mark Elapsed Stage 204,349 SPL 494,212 289,863 end phase 8,637 8,637 board_init_f 1,314,991 1,306,354 board_init_r 3,483,389 2,168,398 eth_common_init 3,814,525 331,136 eth_initialize 3,814,762 237 main_loop 3,823,030 8,268 cli_loop Accumulated time: 22,295 dm_spl 852,152 dm_f 60,268 dm_r After this series the boot time have improved, mostly thanks to the use of ARMv8 crypto, OF_LIVE and reduced clutter in FDT: => bootstage report Timer summary in microseconds (12 records): Mark Elapsed Stage 165,322 SPL 419,002 253,680 end phase 8,620 8,620 board_init_f 1,314,364 1,305,744 board_init_r 2,234,295 919,931 eth_common_init 2,399,375 165,080 eth_initialize 2,406,203 6,828 main_loop 2,406,499 296 cli_loop Accumulated time: 28,365 dm_spl 864,210 dm_f 11,943 of_live 13,085 dm_r After this the board still spend a long time waiting for timeout during probe of display/hdmi driver (~1200 ms) or reading FDT during pre-reloc phase (~600ms). A copy of this series can be found at [1]. [1] https://github.com/Kwiboo/u-boot-rockchip/commits/rk3399-dt-sync-v2-part1 Jonas Karlman (18): rockchip: rk3399-gru: Fix max SPL size on bob and kevin rockchip: rk3399-puma: Update SPL_PAD_TO Kconfig option rockchip: rk3399-puma: Use common bss and stack addresses rockchip: rk3399-ficus: Enable TPL and use common bss and stack addr rockchip: rk3399: Sort imply statements alphabetically rockchip: rk3399: Enable ARMv8 crypto and FIT checksum validation rockchip: rk3399: Enable random generator on all boards rockchip: rk3399: Imply support for GbE PHY rockchip: rk3399: Enable DT overlay support on all boards rockchip: rk3399: Remove use of xPL_MISC_DRIVERS options rockchip: rk3399: Add a default spl-boot-order prop rockchip: rk3399: Remove inherited bootph-all props rockchip: rk3399: Sort nodes in u-boot.dtsi files rockchip: rk3399: Fix bootph prop for vop nodes rockchip: rk3399-puma: Move uart0 bootph to board u-boot.dtsi rockchip: rk3399: Include uart related pinctrl nodes in TPL/SPL rockchip: rk3399: Fix loading FIT from SD-card when booting from eMMC rockchip: rk3399: Configure sdmmc regulator pinctrl in SPL arch/arm/dts/rk3399-eaidk-610-u-boot.dtsi | 1 - arch/arm/dts/rk3399-evb-u-boot.dtsi | 26 +++-- arch/arm/dts/rk3399-ficus-u-boot.dtsi | 12 ++- arch/arm/dts/rk3399-firefly-u-boot.dtsi | 6 -- arch/arm/dts/rk3399-gru-u-boot.dtsi | 24 +++++ arch/arm/dts/rk3399-khadas-edge-u-boot.dtsi | 6 -- arch/arm/dts/rk3399-leez-p710-u-boot.dtsi | 6 -- arch/arm/dts/rk3399-nanopi4-u-boot.dtsi | 14 ++- arch/arm/dts/rk3399-orangepi-u-boot.dtsi | 12 +++ arch/arm/dts/rk3399-pinebook-pro-u-boot.dtsi | 23 ++-- arch/arm/dts/rk3399-pinephone-pro-u-boot.dtsi | 12 --- arch/arm/dts/rk3399-puma-haikou-u-boot.dtsi | 25 ++--- arch/arm/dts/rk3399-roc-pc-u-boot.dtsi | 31 ++++-- arch/arm/dts/rk3399-rock-4c-plus-u-boot.dtsi | 10 ++ arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi | 6 -- arch/arm/dts/rk3399-rock960-u-boot.dtsi | 13 ++- arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 22 ++-- arch/arm/dts/rk3399-u-boot.dtsi | 101 +++++++++++++----- .../arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi | 6 -- arch/arm/mach-rockchip/Kconfig | 36 ++++--- configs/chromebook_bob_defconfig | 6 +- configs/chromebook_kevin_defconfig | 6 +- configs/eaidk-610-rk3399_defconfig | 2 +- configs/evb-rk3399_defconfig | 4 +- configs/ficus-rk3399_defconfig | 16 +-- configs/firefly-rk3399_defconfig | 4 +- configs/khadas-edge-captain-rk3399_defconfig | 2 +- configs/khadas-edge-rk3399_defconfig | 2 +- configs/khadas-edge-v-rk3399_defconfig | 2 +- configs/leez-rk3399_defconfig | 3 +- configs/nanopc-t4-rk3399_defconfig | 4 +- configs/nanopi-m4-2gb-rk3399_defconfig | 4 +- configs/nanopi-m4-rk3399_defconfig | 4 +- configs/nanopi-m4b-rk3399_defconfig | 4 +- configs/nanopi-neo4-rk3399_defconfig | 4 +- configs/nanopi-r4s-rk3399_defconfig | 4 +- configs/orangepi-rk3399_defconfig | 4 +- configs/pinebook-pro-rk3399_defconfig | 7 +- configs/pinephone-pro-rk3399_defconfig | 5 +- configs/puma-rk3399_defconfig | 14 +-- configs/roc-pc-mezzanine-rk3399_defconfig | 4 +- configs/roc-pc-rk3399_defconfig | 6 +- configs/rock-4c-plus-rk3399_defconfig | 3 +- configs/rock-4se-rk3399_defconfig | 5 +- configs/rock-pi-4-rk3399_defconfig | 5 +- configs/rock-pi-4c-rk3399_defconfig | 3 +- configs/rock-pi-n10-rk3399pro_defconfig | 2 +- configs/rock960-rk3399_defconfig | 4 +- configs/rockpro64-rk3399_defconfig | 9 +- 49 files changed, 298 insertions(+), 236 deletions(-) -- 2.43.2

3 34

[PATCH 1/3] rng: Introduce SPL_DM_RNG
by Marek Vasut 05 May '24

05 May '24

Add SPL variant of DM_RNG so that the DM_RNG can be disabled in SPL if necessary. This may be necessary due to e.g. size constraints of the SPL. Signed-off-by: Marek Vasut <marex(a)denx.de> --- Cc: Angelo Dureghello <angelo(a)kernel-space.org> Cc: Emanuele Ghidoli <emanuele.ghidoli(a)toradex.com> Cc: Fabio Estevam <festevam(a)gmail.com> Cc: Gaurav Jain <gaurav.jain(a)nxp.com> Cc: Heinrich Schuchardt <xypron.glpk(a)gmx.de> Cc: Marek Vasut <marex(a)denx.de> Cc: Michal Simek <michal.simek(a)amd.com> Cc: Simon Glass <sjg(a)chromium.org> Cc: Stefan Roese <sr(a)denx.de> Cc: Sughosh Ganu <sughosh.ganu(a)linaro.org> Cc: Svyatoslav Ryhel <clamor95(a)gmail.com> Cc: Tim Harvey <tharvey(a)gateworks.com> Cc: Tom Rini <trini(a)konsulko.com> Cc: u-boot(a)lists.denx.de --- boot/pxe_utils.c | 4 +--- boot/vbe_request.c | 2 +- drivers/Makefile | 2 +- drivers/crypto/fsl/jr.c | 4 ++-- drivers/rng/Kconfig | 7 +++++++ drivers/rng/Makefile | 2 +- lib/uuid.c | 2 +- net/net_rand.h | 2 +- test/dm/Makefile | 2 +- 9 files changed, 16 insertions(+), 11 deletions(-) diff --git a/boot/pxe_utils.c b/boot/pxe_utils.c index 96205626750..5c1c962ff4c 100644 --- a/boot/pxe_utils.c +++ b/boot/pxe_utils.c @@ -21,9 +21,7 @@ #include <errno.h> #include <linux/list.h> -#ifdef CONFIG_DM_RNG #include <rng.h> -#endif #include <splash.h> #include <asm/io.h> @@ -323,7 +321,7 @@ static int label_localboot(struct pxe_label *label) static void label_boot_kaslrseed(void) { -#ifdef CONFIG_DM_RNG +#if CONFIG_IS_ENABLED(DM_RNG) ulong fdt_addr; struct fdt_header *working_fdt; size_t n = 0x8; diff --git a/boot/vbe_request.c b/boot/vbe_request.c index 917251afa1c..0293ac6c869 100644 --- a/boot/vbe_request.c +++ b/boot/vbe_request.c @@ -36,7 +36,7 @@ static int handle_random_req(ofnode node, int default_size, u32 size; int ret; - if (!IS_ENABLED(CONFIG_DM_RNG)) + if (!CONFIG_IS_ENABLED(DM_RNG)) return -ENOTSUPP; if (ofnode_read_u32(node, "vbe,size", &size)) { diff --git a/drivers/Makefile b/drivers/Makefile index bf73b7718ce..9195dafd37e 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -126,7 +126,7 @@ obj-$(CONFIG_W1_EEPROM) += w1-eeprom/ obj-$(CONFIG_MACH_PIC32) += ddr/microchip/ obj-$(CONFIG_FUZZ) += fuzz/ obj-$(CONFIG_DM_HWSPINLOCK) += hwspinlock/ -obj-$(CONFIG_DM_RNG) += rng/ +obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng/ endif obj-y += soc/ diff --git a/drivers/crypto/fsl/jr.c b/drivers/crypto/fsl/jr.c index 203f1625215..8ae5c434bdb 100644 --- a/drivers/crypto/fsl/jr.c +++ b/drivers/crypto/fsl/jr.c @@ -787,7 +787,7 @@ init: } #if CONFIG_IS_ENABLED(OF_CONTROL) if (ofnode_valid(scu_node)) { - if (IS_ENABLED(CONFIG_DM_RNG)) { + if (CONFIG_IS_ENABLED(DM_RNG)) { ret = device_bind_driver(NULL, "caam-rng", "caam-rng", NULL); if (ret) printf("Couldn't bind rng driver (%d)\n", ret); @@ -810,7 +810,7 @@ init: return -1; } - if (IS_ENABLED(CONFIG_DM_RNG)) { + if (CONFIG_IS_ENABLED(DM_RNG)) { ret = device_bind_driver(NULL, "caam-rng", "caam-rng", NULL); if (ret) diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig index cd72852a479..5758ae192a6 100644 --- a/drivers/rng/Kconfig +++ b/drivers/rng/Kconfig @@ -6,6 +6,13 @@ config DM_RNG This interface is used to initialise the rng device and to read the random seed from the device. +config SPL_DM_RNG + bool "Driver support for Random Number Generator devices in SPL" + depends on SPL_DM + help + This option is an SPL-variant of the DM_RNG option. + See the help of DM_RNG for details. + if DM_RNG config RNG_MESON diff --git a/drivers/rng/Makefile b/drivers/rng/Makefile index ecae1a3da33..c1f1c616e00 100644 --- a/drivers/rng/Makefile +++ b/drivers/rng/Makefile @@ -3,7 +3,7 @@ # Copyright (c) 2019, Linaro Limited # -obj-$(CONFIG_DM_RNG) += rng-uclass.o +obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng-uclass.o obj-$(CONFIG_RNG_MESON) += meson-rng.o obj-$(CONFIG_RNG_SANDBOX) += sandbox_rng.o obj-$(CONFIG_RNG_MSM) += msm_rng.o diff --git a/lib/uuid.c b/lib/uuid.c index 2d7d99535e7..dfa2320ba26 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -378,7 +378,7 @@ void gen_rand_uuid(unsigned char *uuid_bin) struct udevice *devp; u32 randv = 0; - if (IS_ENABLED(CONFIG_DM_RNG)) { + if (CONFIG_IS_ENABLED(DM_RNG)) { ret = uclass_get_device(UCLASS_RNG, 0, &devp); if (!ret) { ret = dm_rng_read(devp, &randv, sizeof(randv)); diff --git a/net/net_rand.h b/net/net_rand.h index d3c5559adfd..686e85f2b53 100644 --- a/net/net_rand.h +++ b/net/net_rand.h @@ -42,7 +42,7 @@ static inline void srand_mac(void) struct udevice *devp; u32 randv = 0; - if (IS_ENABLED(CONFIG_DM_RNG)) { + if (CONFIG_IS_ENABLED(DM_RNG)) { ret = uclass_get_device(UCLASS_RNG, 0, &devp); if (ret) { ret = dm_rng_read(devp, &randv, sizeof(randv)); diff --git a/test/dm/Makefile b/test/dm/Makefile index a3ce7b3889f..c12589d487c 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -102,7 +102,7 @@ obj-$(CONFIG_DM_RESET) += reset.o obj-$(CONFIG_SYSRESET) += sysreset.o obj-$(CONFIG_DM_REGULATOR) += regulator.o obj-$(CONFIG_CMD_RKMTD) += rkmtd.o -obj-$(CONFIG_DM_RNG) += rng.o +obj-$(CONFIG_$(SPL_TPL_)DM_RNG) += rng.o obj-$(CONFIG_DM_RTC) += rtc.o obj-$(CONFIG_SCMI_FIRMWARE) += scmi.o obj-$(CONFIG_SCSI) += scsi.o -- 2.43.0

5 11

[PATCH] configs: am62x_evm_r5: Increase size of malloc_simple heap after relocation
by Judith Mendez 04 May '24

04 May '24

On AM62x SK we can see a boot failure with signature "alloc space exhausted", so fix by increasing size of SPL_STACK_R_MALLOC_SIMPLE_LEN. Fixes: 128f81290b ("arm: dts: k3: binman: am625: add support for signing TIFSSTUB Images") Signed-off-by: Judith Mendez <jm(a)ti.com> --- configs/am62x_evm_r5_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/configs/am62x_evm_r5_defconfig b/configs/am62x_evm_r5_defconfig index 4b2e57b13a0..648241488ed 100644 --- a/configs/am62x_evm_r5_defconfig +++ b/configs/am62x_evm_r5_defconfig @@ -26,6 +26,7 @@ CONFIG_SPL_HAS_BSS_LINKER_SECTION=y CONFIG_SPL_BSS_START_ADDR=0x43c3b000 CONFIG_SPL_BSS_MAX_SIZE=0x3000 CONFIG_SPL_STACK_R=y +CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x200000 CONFIG_SPL_SIZE_LIMIT=0x3A7F0 CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK=0x3500 CONFIG_SPL_FS_FAT=y base-commit: 174ac987655c888017c82df1883c0c2ea0dc2495 -- 2.43.2

4 3

[PATCH 1/1] net: consider option-length when parsing NIS domain
by Heinrich Schuchardt 04 May '24

04 May '24

When parsing option 40 (network information service domain) the option length is in variable 'oplen' and not in 'size'. Addresses-Coverity-ID: 492765 Uninitialized variables (UNINIT) Fixes: 8ab388bfdbcf ("net: add support to parse the NIS domain for the dhcp options") Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt(a)canonical.com> --- net/bootp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bootp.c b/net/bootp.c index c15472f5d37..86c56803c76 100644 --- a/net/bootp.c +++ b/net/bootp.c @@ -886,7 +886,7 @@ static void dhcp_process_options(uchar *popt, uchar *end) case 40: /* NIS Domain name */ if (net_nis_domain[0] == 0) { size = truncate_sz("NIS Domain Name", - sizeof(net_nis_domain), size); + sizeof(net_nis_domain), oplen); memcpy(&net_nis_domain, popt + 2, size); net_nis_domain[size] = 0; } -- 2.43.0

2 1

[PATCH v1 0/3] Arm: npcm: modify npcm mem and boot issue
by Jim Liu 04 May '24

04 May '24

1. Modify npcm memory setting 2. Fix boot error Jim Liu (3): Arm: npcm: fix npcm7xx boot to kernel error configs: arbel: increase u-boot mapping size board: arbel: Limit the dram effective size to bank0 maximal size board/nuvoton/arbel_evb/arbel_evb.c | 14 +++++++++----- board/nuvoton/poleg_evb/poleg_evb.c | 27 ++++++++++++++++++++------- include/configs/arbel.h | 2 +- include/configs/poleg.h | 4 ++-- 4 files changed, 32 insertions(+), 15 deletions(-) -- 2.25.1

2 6

[PATCH v1] spi: npcm_pspi: Reset HW in driver probe
by Jim Liu 04 May '24

04 May '24

Reset HW to clear old status and use default data mode(8-bit). Signed-off-by: Jim Liu <JJLIU0(a)nuvoton.com> --- drivers/spi/npcm_pspi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/spi/npcm_pspi.c b/drivers/spi/npcm_pspi.c index eb14185273..c9441304f5 100644 --- a/drivers/spi/npcm_pspi.c +++ b/drivers/spi/npcm_pspi.c @@ -7,6 +7,7 @@ #include <dm.h> #include <spi.h> #include <clk.h> +#include <reset.h> #include <asm/gpio.h> #include <linux/iopoll.h> @@ -194,6 +195,7 @@ static int npcm_pspi_probe(struct udevice *bus) { struct npcm_pspi_priv *priv = dev_get_priv(bus); int node = dev_of_offset(bus); + struct reset_ctl reset; int ret; ret = clk_get_by_index(bus, 0, &priv->clk); @@ -205,6 +207,14 @@ static int npcm_pspi_probe(struct udevice *bus) gpio_request_by_name_nodev(offset_to_ofnode(node), "cs-gpios", 0, &priv->cs_gpio, GPIOD_IS_OUT| GPIOD_ACTIVE_LOW); + /* Reset HW */ + ret = reset_get_by_index(bus, 0, &reset); + if (!ret) { + reset_assert(&reset); + udelay(5); + reset_deassert(&reset); + } + return 0; } -- 2.25.1

2 1

[PATCH v2] cmd: gpt: initialize partition table
by Kishan Dudhatra 04 May '24

04 May '24

Change in v2: - Fix applies to all block devices, not just MMC. If partition init is not completed within the gpt write, the gpt partition list will not be updated. Signed-off-by: Kishan Dudhatra <kishan.dudhatra(a)siliconsignals.io> diff --git a/cmd/gpt.c b/cmd/gpt.c index d7e96529a6..7aaf1889a5 100644 --- a/cmd/gpt.c +++ b/cmd/gpt.c @@ -643,6 +643,10 @@ static int gpt_default(struct blk_desc *blk_dev_desc, const char *str_part) free(str_disk_guid); free(partitions); + /* initialize partition table */ + if (blk_enabled()) + part_init(blk_dev_desc); + return ret; } -- 2.34.1

2 1

[PATCH] binman: Fix typo in mkimage etype description
by Marek Vasut 04 May '24

04 May '24

Fix a typo, no functional change. Signed-off-by: Marek Vasut <marex(a)denx.de> --- Cc: Alper Nebi Yasak <alpernebiyasak(a)gmail.com> Cc: Simon Glass <sjg(a)chromium.org> Cc: Tom Rini <trini(a)konsulko.com> Cc: u-boot(a)lists.denx.de --- tools/binman/btool/mkimage.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/binman/btool/mkimage.py b/tools/binman/btool/mkimage.py index d5b407c5547..39a4c8c1432 100644 --- a/tools/binman/btool/mkimage.py +++ b/tools/binman/btool/mkimage.py @@ -11,7 +11,7 @@ class Bintoolmkimage(bintool.Bintool): """Image generation for U-Boot This bintool supports running `mkimage` with some basic parameters as - neeed by binman. + needed by binman. Normally binman uses the mkimage built by U-Boot. But when run outside the U-Boot build system, binman can use the version installed in your system. -- 2.43.0

3 2

[PATCH 1/2] event: typo arguemnts
by Heinrich Schuchardt 04 May '24

04 May '24

%s/arguemnts/arguments/ Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt(a)canonical.com> --- include/event.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/event.h b/include/event.h index a8f046da3c3..fb353ad623e 100644 --- a/include/event.h +++ b/include/event.h @@ -316,7 +316,7 @@ static inline const char *event_spy_id(struct evspy_info *spy) __used ll_entry_declare(struct evspy_info, _type ## _3_ ## _func, \ evspy_info) = _ESPY_REC(_type, _func) -/* Simple spy with no function arguemnts */ +/* Simple spy with no function arguments */ #define EVENT_SPY_SIMPLE(_type, _func) \ __used ll_entry_declare(struct evspy_info_simple, \ _type ## _3_ ## _func, \ -- 2.43.0

3 4

[PATCH 0/2] dm: add support for stubbing optional devices
by Caleb Connolly 03 May '24

03 May '24

As U-Boot works to align itself with upstream devicetrees, there are some common issues we start to run into, that of hardware blocks which might be important for an OS like Linux, but which aren't useful in U-Boot. To offer an example: Qualcomm platforms feature a Resource Power Manager (RPM(h)) co-processor, it can opportunistically ramp down rails and clocks based on usage. This necessitates placing votes on these resources for every peripheral that uses them, and as a result means that many peripherals that we want to use in U-Boot contain references to the RPMh clock controller. However, we don't actually need to do this in the context of U-Boot, this is mostly something an OS would care about. With CONFIG_OF_LIVE it would be possible to dynamically remove such references (we could for example add a "bootph-os" property to indicate that the device should be ignored by U-Boot). However OF_LIVE is not available on all boards, and is only available post-relocation. This approach would also require adding a new DT property for every arch/platform/board that we want to ignore. We could instead try to handle this at the driver level, but this becomes intractable when trying to scale across all of the drivers and for all of the supported hardware generations. It also complicates thing if we actually want/need to use this previously optional resource in the future. == The stub approach == The approach taken with this series is instead to allow for a stub driver to be defined per-uclass, with the clock subsystem being the first user. This stub driver is used as a fall back in the case where a driver requests a device of a specific type (such as a clock controller) and where no other driver binds to the node. This solution allows us to immediately solve this issue for Qualcomm platforms, and for any other architectures with similar issues. An obvious next step is to do the same for optional power-domain controllers. Another benefit to this approach is that it is easy to introspect, the stub drivers will show up in "dm tree". So the case of forgetting to enable a driver will be much more obvious than if we tried to find the clock, failed, and just did nothing. == Future expansion == The exact scope of the stub driver (when it should match, how it should behave) obviously depends heavily on the uclass, as such I think it should be up to the subsystem maintainers. An obvious next choice would be the power domain uclass. The current architecture of U-Boot requires either disabling CONFIG_POWER_DOMAIN, supporting every single power domain controller on your platform, or adding DM_FLAG_DEFAULT_PD_CTRL_OFF to a bunch of drivers. --- Caleb Connolly (2): dm: core: add support for fallback drivers clk: introduce a fallback stub driver drivers/clk/Makefile | 1 + drivers/clk/clk-fallback.c | 39 +++++++++++++++++++++++++++++++++++++++ drivers/clk/clk-uclass.c | 4 ++++ drivers/core/Kconfig | 20 ++++++++++++++++++++ drivers/core/uclass.c | 24 +++++++++++++++++++++++- include/dm/uclass.h | 3 +++ 6 files changed, 90 insertions(+), 1 deletion(-) --- change-id: 20240410-b4-stub-drivers-1c1565bb06a6 base-commit: 56c4a3aa2ed15b64eabd067a10be2091d28a5f2f // Caleb (they/them)

4 8