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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2021-06-19 05:45:06 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-06-21 08:04:35 +0200 |
| commit | 20dbfeaff73ff9417bf0fa74e373ffa1f1059a60 (patch) | |
| tree | 518266076c588fc6a6f4d8fbe9f91f2eea07c1c4 /drivers/nvmem/Kconfig | |
| parent | 4b3ecdb261beca50d5b7d39876af8bbebb2c3fcb (diff) | |
| download | barebox-20dbfeaff73ff9417bf0fa74e373ffa1f1059a60.tar.gz barebox-20dbfeaff73ff9417bf0fa74e373ffa1f1059a60.tar.xz | |
nvmem: add support for new read-only memory (rmem) binding
Only upstream user of this binding is the raspberry pi 4 DT, where it's
used to pass along bootloader-provided info to Linux. We have instances
in barebox, where a previous stage bootloader passes along a memory
region with info for barebox to interpret. This could in future be
modelled as nvmem-rmem nodes. The binding is also quite handy for
debugging.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20210619034516.6737-4-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/nvmem/Kconfig')
| -rw-r--r-- | drivers/nvmem/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index e4a72b1431..0d7c0b7b9e 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -9,6 +9,12 @@ menuconfig NVMEM if NVMEM +config NVMEM_RMEM + bool "Reserved Memory Based Driver Support" + help + This driver maps reserved memory into an nvmem device. It might be + useful to expose information left by firmware in memory. + config NVMEM_SNVS_LPGPR tristate "Freescale SNVS LPGPR support" select MFD_SYSCON |