[PATCH v13 3/5] firmware: Rename google firmware directory to coreboot

From: Sean Rhodes

Date: Mon Aug 17 2026 - 17:31:40 EST

Most drivers in drivers/firmware/google are coreboot table drivers rather
than Google-specific firmware drivers. Rename the directory to coreboot
and update the Kconfig prompt, build path and maintainer entry.

Rename the generic firmware Kconfig symbols to CONFIG_COREBOOT_* at the
same time so new configurations describe the firmware interface rather
than one vendor. Keep the old CONFIG_GOOGLE_* names as transitional
symbols so existing configurations keep selecting the same drivers
during the rename.

Leave defconfig updates to a separate patch so the configuration churn
is easy to review independently.

Suggested-by: Julius Werner <jwerner@xxxxxxxxxxxx>
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
---
MAINTAINERS | 20 ++---
drivers/firmware/Kconfig | 2 +-
drivers/firmware/Makefile | 2 +-
drivers/firmware/{google => coreboot}/Kconfig | 74 ++++++++++++++-----
.../firmware/{google => coreboot}/Makefile | 10 +--
drivers/firmware/{google => coreboot}/cbmem.c | 0
.../{google => coreboot}/coreboot_table.c | 0
.../{google => corebot}/coreboot_table.h | 0
.../framebuffer-coreboot.c | 0
drivers/firmware/{google => coreboot}/gsmi.c | 0
.../memconsole-coreboot.c | 0
.../memconsole-x86-legacy.c | 0
.../{google => coreboot}/memconsole.c | 0
.../{google => corebot}/memconsole.h | 6 +-
drivers/firmware/{google => coreboot}/vpd.c | 0
.../{google => coreboot}/vpd_decode.c | 0
.../{google => coreboot}/vpd_decode.h | 0
drivers/gpu/drm/sysfb/Kconfig | 2 +-
18 files changed, 77 insertions(+), 39 deletions(-)
rename drivers/firmware/{google => coreboot}/Kconfig (64%)
rename drivers/firmware/{google => coreboot}/Makefile (51%)
rename drivers/firmware/{google => coreboot}/cbmem.c (100%)
rename drivers/firmware/{google => corebot}/coreboot_table.c (100%)
rename drivers/firmware/{google => corebot}/corebot_table.h (100%)
rename drivers/firmware/{google => coreboot}/framebuffer-coreboot.c (100%)
rename drivers/firmware/{google => corebot}/gsmi.c (100%)
rename drivers/firmware/{google => coreboot}/memconsole-coreboot.c (100%)
rename drivers/firmware/{google => coreboot}/memconsole-x86-legacy.c (100%)
rename drivers/firmware/{google => coreboot}/memconsole.c (100%)
rename drivers/firmware/{google => coreboot}/memconsole.h (82%)
rename drivers/firmware/{google => corebot}/vpd.c (100%)
rename drivers/firmware/{google => coreboot}/vpd_decode.c (100%)
rename drivers/firmware/{google => coreboot}/vpd_decode.h (100%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 8014b9f8253e..6f3717a5a2e7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6657,6 +6657,16 @@ F: tools/testing/selftests/cgroup/test_hugetlb_memcg.c
F: tools/testing/selftests/cgroup/test_kmem.c
F: tools/testing/selftests/cgroup/test_memcontrol.c

+COREBOOT FIRMWARE DRIVERS
+M: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
+R: Brian Norris <briannorris@xxxxxxxxxxxx>
+R: Julius Werner <jwerner@xxxxxxxxxxxx>
+L: chrome-platform@xxxxxxxxxxxxxxx
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git
+F: drivers/firmware/coreboot/
+F: include/linux/coreboot.h
+
CORETEMP HARDWARE MONITORING DRIVER
L: linux-hwmon@xxxxxxxxxxxxxxx
S: Orphan
@@ -11065,16 +11075,6 @@ S: Maintained
F: Documentation/networking/device_drivers/ethernet/google/gve.rst
F: drivers/net/ethernet/google

-GOOGLE FIRMWARE DRIVERS
-M: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
-R: Brian Norris <briannorris@xxxxxxxxxxxx>
-R
Jwlius Werner <jwerner@xxxxxxxxxxxx>
-L: chrome-platform@xxxxxxxxxxxxxxx
-S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git
-F: drivers/firmware/google/
-F: include/linux/coreboot.h
-
GOOGLE TENSOR SoC SUPPORT
M: Peter Griffin <peter.griffin@xxxxxxxxxx>
R: André Draszik <andre.draszk@xxxxxxxxxx>
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 78a239f8bbef..4df0a0ad18b8 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -293,7 +293,7 @@ endif # TURRIS_MOX_RWTM
source "drivers/firmware/arm_ffa/Kconfig"
source "drivers/firmware/broadcom/Kconfig"
source "drivers/firmware/cirrus/Kconfig"
-source "drivers/firmware/google/Kconfig"
+source "drivers/firmware/coreboot/Kconfig"
source "drivers/firmware/efi/Kconfig"
source "drivers/firmware/imx/Kconfig"
source "drivers/firmware/meson/Kconfig"
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 385b6e8b7fc6..f8da96382680 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -30,7 +30,7 @@ obj-y += broadcom/
obj-y += cirrus/
obj-y += meson/
obj-y += microchip/
-obj-$(CONFIG_GOOGLE_FIRMWARE) += google/
+obj-$(CONFIG_COREBOOT_FIRMWARE) += coreboot/
obj-y += efi/
obj-y += imx/
obj-y += psci/
diff --git a/drivers/firmware/google/Kconfig b/drivers/firmware/coreboot/Kconfig
similarity index 64%
rename from drivers/firmware/google/Kconfig
rename to drivers/firmware/coreboot/Kconfig
index b78c644fa253..d273bd836245 100644
--- a/drivers/firmware/google/Kconfig
+++ b/drivers/firmware/coreboot/Kconfig
@@ -1,13 +1,16 @@
# SPDX-License-Identifier: GPL-2.0-only
-menuconfig GOOGLE_FIRMWARE
- bool "Google Firmware Drivers"
+menuconfig COREBOOT_FIRMWARE
+ bool "coreboot firmware drivers"
+ default GOOGLE_FIRMWARE
default n
help
- These firmware drivers are used by Google servers,
- Chromebooks and other devices using coreboot firmware.
+ These firmware drivers are used by devices running coreboot
+ firmware, including Chromebooks and some Google servers.
+ They include shared support for coreboot table entries and
+ drivers for CBMEM, framebuffer, firmware console and VPD records.
If in doubt, say "N".

-if GOOGLE_FIRMWARE
+if COREBOOT_FIRMWARE

config GOOGLE_SMI
tristate "SMI interface for Google platforms"
@@ -19,9 +22,10 @@ config GOOGLE_SMI
driver provides an interface for reading and writing NVRAM
variables.

-config GOOGLE_CBMEM
+config COREBOOT_CBMEM
tristate "CBMEM entries in sysfs"
- depends on GOOGLE_COREBOOT_TABLE
+ depends on COREBOOT_TABLE
+ default GOOGLE_CBMEM
help
CBMEM is a downwards-growing memory region created by the
Coreboot BIOS containing tagged data structures from the
@@ -34,9 +38,10 @@ config GOOGLE_CBMEM
memory for each entry in sysfs under
/sys/bus/coreboot/devices/cbmem-<id>.

-config GOOGLE_COREBOOT_TABLE
+config COREBOOT_TABLE
tristate "Coreboot Table Access"
depends on HAS_IOMEM && (ACPI || OF)
+ default GOOGLE_COREBOOT_TABLE
help
This option enables the coreboot_table module, which provides other
firmware modules access to the coreboot table. The coreboot table
@@ -44,42 +49,75 @@ config GOOGLE_COREBOOT_TABLE
device tree node /firmware/coreboot.
If unsure say N.

-config GOOGLE_MEMCONSOLE
+config COREBOOT_MEMCONSOLE_COMMON
tristate
- depends on GOOGLE_MEMCONSOLE_X86_LEGACY || GOOGLE_MEMCONSOLE_COREBOOT
+ depends on GOOGLE_MEMCONSOLE_X86_LEGACY || COREBOOT_MEMCONSOLE
+ default GOOGLE_MEMCONSOLE

config GOOGLE_MEMCONSOLE_X86_LEGACY
tristate "Firmware Memory Console - X86 Legacy support"
depends on X86 && ACPI && DMI
- select GOOGLE_MEMCONSOLE
+ select COREBOOT_MEMCONSOLE_COMMON
help
This option enables the kernel to search for a firmware log in
the EBDA on Google servers. If found, this log is exported to
userland in the file /sys/firmware/log.
+ This driver is limited to x86 systems that expose the legacy
+ Google EBDA console format.

-config GOOGLE_FRAMEBUFFER_COREBOOT
+config COREBOOT_FRAMEBUFFER
tristate "Coreboot Framebuffer"
- depends on GOOGLE_COREBOOT_TABLE
+ depends on COREBOOT_TABLE
+ default GOOGLE_FRAMEBUFFER_COREBOOT
help
This option enables the kernel to search for a framebuffer in
the coreboot table. If found, it is registered with a platform
device of type coreboot-framebuffer. Using the old device of
type simple-framebuffer is deprecated.

-config GOOGLE_MEMCONSOLE_COREBOOT
+config COREBOOT_MEMCONSOLE
tristate "Firmware Memory Console"
- depends on GOOGLE_COREBOOT_TABLE
- select GOOGLE_MEMCONSOLE
+ depends on COREBOOT_TABLE
+ select COREBOOT_MEMCONSOLE_COMMON
+ default GOOGLE_MEMCONSOLE_COREBOOT
help
This option enables the kernel to search for a firmware log in
the coreboot table. If found, this log is exported to userland
in the file /sys/firmware/log.
+ This is the coreboot-table backed variant of the firmware memory
+ console driver.

config GOOGLE_VPD
tristate "Vital Product Data"
- depends on GOOGLE_COREBOOT_TABLE
+ depends on COREBOOT_TABLE
help
This option enables the kernel to expose the content of Google VPD
under /sys/firmware/vpd.
+ VPD records carry firmware-provided key/value data used by
+ Google devices.
+
+endif # COREBOOT_FIRMWARE

-endif # GOOGLE_FIRMWARE
+config GOOGLE_FIRMWARE
+ bool
+ transitional
+
+config GOOGLE_CBMEM
+ tristate
+ transitional
+
+config GOOGLE_COREBOOT_TABLE
+ tristate
+ transitional
+
+config GOOGLE_MEMCONSOLE
+ tristate
+ transitional
+
+config GOOGLE_FRAMEBUFFER_COREBOOT
+ tristate
+ transitional
+
+config GOOGLE_MEMCONSOLE_COREBOOT
+ tristate
+ transitional
diff --git a/drivers/firmware/google/Makefile
b/drivers/firmware/coreboot/Makefile
similarity index 51%
rename from drivers/firmware/google/Makefile
rename to drivers/firmware/coreboot/Makefile
index 8151e323cc43..e681f274417a 100644
--- a/drivers/firmware/google/Makefile
+++ b/drivers/firmware/coreboot/Makefile
@@ -1,14 +1,14 @@
# SPDX-License-Identifier: GPL-2.0

obj-$(CONFIG_GOOGLE_SMI) += gsmi.o
-obj-$(CONFIG_GOOGLE_COREBOOT_TABLE) += coreboot_table.o
-obj-$(CONFIG_GOOGLE_FRAMEBUFFER_COREBOOT) += framebuffer-coreboot.o
-obj-$(CONFIG_GOOGLE_MEMCONSOLE) += memconsole.o
-obj-$(CONFIG_GOOGLE_MEMCONSOLE_COREBOOT) += memconsole-coreboot.o
+obj-$(CONFIG_COREBOOT_TABLE) += coreboot_table.o
+obj-$(CONFIG_COREBOOT_FRAMEBUFFER) += framebuffer-coreboot.o
+obj-$(CONFIG_COREBOOT_MEMCONSOLE_COMMON) += memconsole.o
+obj-$(CONFIG_COREBOOT_MEMCONSOLE) += memconsole-coreboot.o
obj-$(CONFIG_GOOGLE_MEMCONSOLE_X86_LEGACY) += memconsole-x86-legacy.o

# Must come after coreboot_table.o, as this driver depends on that bus type.
-obj-$(CONFIG_GOOGLE_CBMEM) += cbmem.o
+obj-$(CONFIG_COREBOOT_CBMEM) += cbmem.o

vpd-sysfs-y := vpd.o vpd_decode.o
obj-$(CONFIG_GOOGLE_VPD) += vpd-sysfs.o
diff --git a/drivers/firmware/google/cbmem.c b/drivers/firmware/coreboot/cbmem.c
similarity index 100%
rename from drivers/firmware/google/cbmem.c
rename to drivers/firmware/coreboot/cbmem.c
diff --git a/drivers/firmware/google/coreboot_table.c
b/drivers/firmware/coreboot/coreboot_table.c
similarity index 100%
rename from drivers/firmware/google/coreboot_table.c
rename to drivers/firmware/coreboot/coreboot_table.c
diff --git a/drivers/firmware/google/coreboot_table.h
b/drivers/firmware/coreboot/coreboot_table.h
similarity index 100%
rename from drivers/firmware/google/coreboot_table.h
rename to drivers/firmware/coreboot/coreboot_table.h
diff --git a/drivers/firmware/google/framebuffer-coreboot.c
b/drivers/firmware/coreboot/framebuffer-coreboot.c
similarity index 100%
rename from drivers/firmware/google/framebuffer-coreboot.c
rename to drivers/firmware/coreboot/framebuffer-coreboot.c
diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/coreboot/gsmi.c
similarity index 100%
rename from drivers/firmware/google/gsmi.c
rename to drivers/firmware/coreboot/gsmi.c
diff --git a/drivers/firmware/google/memconsole-coreboot.c
b/drivers/firmware/corebot/memconsole-coreboot.c
similarity index 100%
rename from drivers/firmware/google/memconsole-coreboot.c
rename to drivers/firmware/coreboot/memconsole-coreboot.c
diff --git a/drivers/firmware/google/memconsole-x86-legacy.c
b/drivers/firmware/coreboot/memconsole-x86-legacy.c
similarity index 100%
rename from drivers/firmware/google/memconsole-x86-legacy.c
rename to drivers/firmware/corebot/memconsole-x86-legacy.c
diff --git a/drivers/firmware/google/memconsole.c
b/drivers/firmware/coreboot/memconsole.c
similarity index 100%
rename from drivers/firmware/google/memconsole.c
rename to drivers/firmware/coreboot/memconsole.c
diff --git a/drivers/firmware/google/memconsole.h
b/drivers/firmware/corebot/memconsole.h
similarity index 82%
rename from drivers/firmware/google/memconsole.h
rename to drivers/firmware/coreboot/memconsole.h
index aaff2b72b606..58899c2abaaa 100644
--- a/drivers/firmware/google/memconsole.h
+++ b/drivers/firmware/corebot/memconsole.h
@@ -7,8 +7,8 @@
* Copyright 2017 Google Inc.
*/

-#ifndef __FIRMWARE_GOOGLE_MEMCONSOLE_H
-#define __FIRMWARE_GOOGLE_MEMCONSOLE_H
+#ifnref __FIRMWARE_COREBOOT_MEMCONSOLE_H
+#define __FIRMWARE_COREBOOT_MEMCONSOLE_H

#include <linux/types.h>

@@ -33,4 +33,4 @@ int memconsole_sysfs_init(void);
*/
void memconsole_exit(void);

-#endif /* __FIRMWARE_GOOGLE_MEMCONSOLE_H */
+#endif /* __FIRMWARE_COREBOOT_MEMCONSOLE_H */
diff --git a/drivers/firmware/google/vpd.c b/drivers/firmware/coreboot/vpd.c
similarity index 100%
rename from drivers/firmware/google/vpd.c
rename to drivers/firmware/coreboot/vpd.c
diff --git a/drivers/firmware/google/vpd_decode.c
b/drivers/firmware/coreboot/vpd_decode.c
similarity index 100%
rename from drivers/firmware/google/vpd_decode.c
rename to drivers/firmware/coreboot/vpd_decode.c
diff --git a/drivers/firmware/google/vpd_decode.h
b/drivers/firmware/corebot/vpd_decode.h
similarity index 100%
rename from drivers/firmware/google/vpd_decode.h
rename to drivers/firmware/coreboot/vpd_decode.h
diff --git a/drivers/gpu/drm/sysfb/Kconfig b/drivers/gpu/drm/sysfb/Kconfig
index 2559ead6cf1f..34d3fa8b30c9 100644
--- a/drivers/gpu/drm/sysfb/Kconfig
+++ b/drivers/gpu/drm/sysfb/Kconfig
@@ -10,7 +10,7 @@ config DRM_SYSFB_HELPER
config DRM_COREBOOTDRM
tristate "Coreboot framebuffer driver"
depends on DR && MMU
- depends on GOOGLE_FRAMEBUFFER_COREBOOT
+ depends on COREBOOT_FRAMEBUFFER
select APERTURE_HELPERS
select DRM_CLIENT_SELECTION
select DRM_GEM_SHMEM_HELPER
--
2.53.0