diff options
| author | Lukasz Majewski <lukma@denx.de> | 2020-06-04 18:11:53 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-06-29 20:34:43 +0300 |
| commit | 56c404603825a4e3229dcf0d3d88318b20493fa6 (patch) | |
| tree | ee13a73068deae43040e3fefa156b3c93881767c /drivers/spi/Makefile | |
| parent | c87f9ce227380f19ca32d7523269194e1c6348c6 (diff) | |
| download | u-boot-56c404603825a4e3229dcf0d3d88318b20493fa6.tar.xz | |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI*
This change allows more fine tuning of driver model based SPI support in
SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI
support in SPL and TPL via Kconfig option.
Before this change it was necessary to use:
/* SPI Flash Configs */
#if defined(CONFIG_SPL_BUILD)
#undef CONFIG_DM_SPI
#undef CONFIG_DM_SPI_FLASH
#undef CONFIG_SPI_FLASH_MTD
#endif
in the ./include/configs/<board>.h, which is error prone and shall be
avoided when we strive to switch to Kconfig.
The goal of this patch:
Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL).
Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must
still support non DM driver.
Another use case is the conversion of non DM/DTS SPI driver to support
DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the
distinction is needed in Kconfig (also if SPL version of the driver
supports OF_PLATDATA).
In the end of the day one would have to support following use cases (in
single driver file - e.g. mxs_spi.c):
- U-Boot proper driver supporting DT/DTS
- U-Boot proper driver without DT/DTS support (deprecated)
- SPL driver without DT/DTS support
- SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to
run full blown DT/DTS)
- SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained
environment with no fitImage and OF_LIBFDT support).
Some boards do require SPI support (with DM) in SPL (TPL) and some only
have DM_SPI{_FLASH} defined to allow compiling SPL.
This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI)
and provides corresponding defines in Kconfig.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Tested-by: Adam Ford <aford173@gmail.com> #da850-evm
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
[trini: Fixup a few platforms]
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'drivers/spi/Makefile')
| -rw-r--r-- | drivers/spi/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 54881a7412..9559e938d2 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -4,7 +4,7 @@ # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # There are many options which enable SPI, so make this library available -ifdef CONFIG_DM_SPI +ifdef CONFIG_$(SPL_TPL_)DM_SPI obj-y += spi-uclass.o obj-$(CONFIG_SANDBOX) += spi-emul-uclass.o obj-$(CONFIG_SOFT_SPI) += soft_spi.o |