CONFIG_SPI_DW_BT1_DIRMAP: Directly mapped Baikal-T1 Boot SPI flash support

General informations

The Linux kernel configuration item CONFIG_SPI_DW_BT1_DIRMAP:

• prompt: Directly mapped Baikal-T1 Boot SPI flash support
• type: bool
• depends on: CONFIG_SPI_DW_BT1
• defined in drivers/spi/Kconfig
• found in Linux kernels: 5.10–5.19, 6.0–6.14, 6.15-rc+HEAD

Help text

Directly mapped SPI flash memory is an interface specific to the Baikal-T1 System Boot Controller. It is a 16MB MMIO region, which can be used to access a peripheral memory device just by reading/writing data from/to it. Note that the system APB bus will stall during each IO from/to the dirmap region until the operation is finished. So try not to use it concurrently with time-critical tasks (like the SPI memory operations implemented in this driver).

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

Automatic links from Google (and ads)

Custom Search

Popular queries: