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Subrata Banik 4373eea5d8 {lib, drivers/intel}: Add splash screen footer 
This commit introduces the `SPLASH_SCREEN_FOOTER` Kconfig option,
enabling a custom footer image or logo on the firmware splash screen.
This provides an additional branding opportunity for device
manufacturers.

`soc_load_logo_by_coreboot()` now conditionally loads and renders
`footer_logo.bmp` when this option is enabled. The footer logo is
positioned at the bottom of the screen.

A new `SPLASH_SCREEN_FOOTER_LOGO_PATH` Kconfig option is added to
define the footer logo's file path. It defaults to a mainboard-specific
location. `Makefile.mk` is updated to ensure this logo is included in
the CBFS.

This additional branding is made possible by rendering bitmaps using
coreboot's native implementation (`USE_COREBOOT_FOR_BMP_RENDERING`).
FSP currently lacks the necessary callbacks to support this feature.

Currently, the OEM footer branding will appear even when the
system is booting in low-battery mode. A planned update will fix this
by exiting early from the boot process, preventing the footer from
showing and conserving power.

BUG=b:423591644
TEST=Able to display custom footer logo on boot.

Change-Id: I57f8af910e8b8f56e8a4a88f8cca6d60fad380b6
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88029
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
2025-06-23 02:04:26 +00:00
..
gnat lib,console,sbom: Rename Makefiles from .inc to .mk 2024-01-24 10:12:57 +00:00
asan.c Allow to build romstage sources inside the bootblock 2023-11-09 13:20:18 +00:00
b64_decode.c treewide: replace GPLv2 long form headers with SPDX header 2020-05-06 22:20:57 +00:00
bmp_logo.c {lib, drivers/intel}: Add splash screen footer 2025-06-23 02:04:26 +00:00
boot_device.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
bootblock.c timestamps: Rename timestamps to make names more consistent 2022-03-08 16:06:33 +00:00
bootmem.c drivers/efi/uefi_capsules.c: coalesce and store UEFI capsules 2024-08-30 15:48:25 +00:00
bootmode.c lib/bootmode: Enforce display init requirement for vboot 2025-04-12 17:34:09 +00:00
bootsplash.c lib/jpeg: return string (not int) error messages 2024-09-18 21:51:40 +00:00
cb.ads lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
cbfs.c treewide: Move list.h to commonlib 2024-02-24 11:49:46 +00:00
cbfs_master_header.c treewide: Assume FMAP_SECTION_FLASH_START = 0 2025-04-18 14:57:05 +00:00
cbmem_common.c src: Remove unused 'include <bootstate.h>' 2020-06-02 07:40:35 +00:00
cbmem_console.c lib/cbmem_console.c: Use C99 flexible arrays 2023-07-30 09:59:46 +00:00
cbmem_stage_cache.c src/lib: Add memory/time saving special case for ramstage caching 2023-12-18 08:13:12 +00:00
coreboot_table.c drivers/option: Add forms in cbtables 2024-12-18 18:16:51 +00:00
crc_byte.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
decompressor.c timestamps: Rename timestamps to make names more consistent 2022-03-08 16:06:33 +00:00
delay.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
dimm_info_util.c lib/dimm_info_util.c: Add newlines to log messages 2023-06-03 16:12:54 +00:00
dp_aux.c Use the fallthrough statement in switch loops 2022-02-16 21:29:53 +00:00
edid.c lib/edid: Support DisplayID 2.0 extension 2025-03-12 12:45:39 +00:00
edid_displayid.h lib/edid: Support DisplayID 2.0 extension 2025-03-12 12:45:39 +00:00
edid_fill_fb.c drivers/intel/gma: Fix mismatching types for fb_add_framebuffer_info 2024-09-02 09:33:59 +00:00
espi_debug.c lib/espi_debug: Add espi_show_slave_peripheral_channel_configuration 2021-04-23 21:20:26 +00:00
ext_stage_cache.c ext_stage_cache: Make sure variables are initialized 2024-08-30 07:35:10 +00:00
fallback_boot.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
fit.c include/device_tree.h: Fix function name fdt_node_name 2024-06-28 12:29:13 +00:00
fit_payload.c cbmem.h: Change return type of cbmem_get_region 2024-08-29 13:58:21 +00:00
fmap.c region: Introduce region_create() functions 2024-08-11 17:07:32 +00:00
fw_config.c src/lib: use RO CBFS file as fw_config source 2025-03-26 16:37:25 +00:00
gcc.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
gcov-glue.c tree: Use __func__ instead of hard-coded names 2023-02-17 16:08:04 +00:00
gcov-io.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
gcov-io.h lib/gcov-io.h: Use C99 flexible arrays 2023-08-01 13:34:27 +00:00
gcov-iov.h lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
gpio.c gpio: Pull down HiZ pins after reading tristate GPIO strapping 2020-08-06 23:54:41 +00:00
halt.c treewide: Move stdlib.h to commonlib 2024-03-15 10:09:43 +00:00
hardwaremain.c {commonlib, lib}: Add timestamp for early chip initialization 2025-04-08 07:50:18 +00:00
hexdump.c lib/hexdump: remove hexdump32 and use hexdump instead 2021-05-27 15:41:15 +00:00
hexstrtobin.c treewide: Convert more license headers to SPDX style 2020-05-11 19:37:19 +00:00
hw-time-timer.adb treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
identity.c lib/version: Move board identification strings 2023-04-22 16:20:49 +00:00
imd.c lib: Remove unused <stdlib.h> and use <types.h> when appropriate 2022-04-24 17:43:57 +00:00
imd_cbmem.c cbmem.h: Change return type of cbmem_get_region 2024-08-29 13:58:21 +00:00
io.c soc/amd/common/psp_verstage: Remove arch/io.h 2025-04-02 16:03:34 +00:00
jpeg.c lib/jpeg: return string (not int) error messages 2024-09-18 21:51:40 +00:00
jpeg.h lib/jpeg: return string (not int) error messages 2024-09-18 21:51:40 +00:00
Kconfig {lib, drivers/intel}: Add splash screen footer 2025-06-23 02:04:26 +00:00
Kconfig.cbfs_verification Kconfig.cbfs_verification: Update TOCTOU_SAFETY combination with VBOOT 2023-11-07 22:30:20 +00:00
libgcc.c treewide: Replace CONFIG(ARCH_xx) tests 2020-06-17 21:13:09 +00:00
libgcov.c treewide: Move stdlib.h to commonlib 2024-03-15 10:09:43 +00:00
lzma.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
lzmadecode.c lib/lzmadecode: Allow for 8 byte reads on 64bit 2024-02-21 16:19:05 +00:00
lzmadecode.h lib/lzmadecode: Allow for 8 byte reads on 64bit 2024-02-21 16:19:05 +00:00
Makefile.mk {lib, drivers/intel}: Add splash screen footer 2025-06-23 02:04:26 +00:00
malloc.c malloc/memalign: Return NULL if the request is too large 2024-01-29 19:12:43 +00:00
master_header_pointer.c treewide: Assume FMAP_SECTION_FLASH_START = 0 2025-04-18 14:57:05 +00:00
memchr.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
memcmp.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
memcpy.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
memmove.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
memrange.c tree: Remove blank lines before '}' and after '{' 2024-04-11 19:19:08 +00:00
memset.c lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
metadata_hash.c cbfs/vboot: Adapt to new vb2_digest API 2022-09-02 23:51:29 +00:00
nhlt.c lib/nhlt, soc/intel/skl: Update NHLT to program feedback config 2022-12-21 13:57:48 +00:00
primitive_memtest.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
prog_loaders.c cbmem_top: Change the return value to uintptr_t 2024-07-10 12:55:46 +00:00
prog_ops.c lib/prog_ops.c: Add <types.h> 2022-10-06 18:13:19 +00:00
program.ld drivers/option: Add forms in cbtables 2024-12-18 18:16:51 +00:00
ramdetect.c riscv/mb/qemu: fix DRAM probing 2024-03-04 23:43:46 +00:00
ramtest.c commonlib/console/post_code.h: Change post code prefix to POSTCODE 2023-06-23 15:06:04 +00:00
reg_script.c tree: Drop duplicated <device/{path,resource}.h> 2024-04-12 04:24:20 +00:00
region_file.c tree: Remove blank lines before '}' and after '{' 2024-04-11 19:19:08 +00:00
reset.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
rmodule.c payloads,src: Replace ALIGN(x, a) by ALIGN_UP(x, a) for clarity 2022-10-13 19:14:57 +00:00
rmodule.ld lib: Add SPDX identifiers to files missing them 2022-08-11 17:53:29 +00:00
romstage_handoff.c ACPI S3: Replace stashed acpi_slp_typ value 2021-01-23 20:19:47 +00:00
rtc.c lib/rtc: Fix off-by-one error in February day count in leap year 2024-02-29 13:07:02 +00:00
selfboot.c /: Remove extra space after comma 2022-11-30 03:07:23 +00:00
smbios.c lib/smbios: Improve Type9 2024-10-28 22:06:01 +00:00
smbios_defaults.c Kconfig: Rework SYSTEM_TYPE_XX to better map to SMBIOS 2025-02-19 16:45:42 +00:00
spd_bin.c spd_bin.h: Deduplicate SPD definitions 2025-03-16 05:25:07 +00:00
spd_cache.c spd_bin.h: Deduplicate SPD definitions 2025-03-16 05:25:07 +00:00
stack.c tree: Remove blank lines before '}' and after '{' 2024-04-11 19:19:08 +00:00
string.c commonlib/bsd: Add strlen() and strnlen() functions 2024-08-14 03:09:03 +00:00
thread.c tree: Fix cast an object of type 'nullptr_t' to 'uintptr_t' error 2024-10-29 01:41:41 +00:00
timer.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
timer_queue.c lib/timer_queue.c: Fix function signature 2022-09-23 17:34:30 +00:00
timestamp.c CBMEM: Change declarations for initialization hooks 2022-05-20 07:15:39 +00:00
ubsan.c lib: Replace 'unsigned long int' by 'unsigned long' 2025-01-12 04:51:51 +00:00
uuid.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
ux_locales.c lib: Add low battery UX locale message 2025-02-15 18:58:48 +00:00
version.c lib/version: Move board identification strings 2023-04-22 16:20:49 +00:00
wrdd.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
xxhash.c lib/xxhash.c: Add new hash functions 2022-09-07 22:24:51 +00:00