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author | Lukasz Majewski <lukma@denx.de> | 2020-06-04 23:11:53 +0800 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2020-06-29 13:34:43 -0400 |
commit | 56c404603825a4e3229dcf0d3d88318b20493fa6 (patch) | |
tree | ee13a73068deae43040e3fefa156b3c93881767c /include/spi_flash.h | |
parent | c87f9ce227380f19ca32d7523269194e1c6348c6 (diff) | |
download | u-boot-56c404603825a4e3229dcf0d3d88318b20493fa6.zip u-boot-56c404603825a4e3229dcf0d3d88318b20493fa6.tar.gz u-boot-56c404603825a4e3229dcf0d3d88318b20493fa6.tar.bz2 |
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 'include/spi_flash.h')
-rw-r--r-- | include/spi_flash.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/spi_flash.h b/include/spi_flash.h index d9b2af8..b336619 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -39,7 +39,7 @@ struct dm_spi_flash_ops { /* Access the serial operations for a device */ #define sf_get_ops(dev) ((struct dm_spi_flash_ops *)(dev)->driver->ops) -#ifdef CONFIG_DM_SPI_FLASH +#if CONFIG_IS_ENABLED(DM_SPI_FLASH) /** * spi_flash_read_dm() - Read data from SPI flash * |