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>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 54d65f8488..73a27316df 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -549,6 +549,7 @@ config TARGET_GPLUGD
 config ARCH_DAVINCI
 	bool "TI DaVinci"
 	select CPU_ARM926EJS
+	select SPL_DM_SPI if SPL
 	imply CMD_SAVES
 	help
 	  Support for TI's DaVinci platform.
@@ -566,6 +567,8 @@ config ARCH_MVEBU
 	select DM_SERIAL
 	select DM_SPI
 	select DM_SPI_FLASH
+	select SPL_DM_SPI if SPL
+	select SPL_DM_SPI_FLASH if SPL
 	select OF_CONTROL
 	select OF_SEPARATE
 	select SPI
@@ -985,6 +988,8 @@ config ARCH_SOCFPGA
 	imply FAT_WRITE
 	imply SPL
 	imply SPL_DM
+	imply SPL_DM_SPI
+	imply SPL_DM_SPI_FLASH
 	imply SPL_LIBDISK_SUPPORT
 	imply SPL_MMC_SUPPORT
 	imply SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
@@ -1093,6 +1098,8 @@ config ARCH_ZYNQ
 	select SPL_BOARD_INIT if SPL
 	select SPL_CLK if SPL
 	select SPL_DM if SPL
+	select SPL_DM_SPI if SPL
+	select SPL_DM_SPI_FLASH if SPL
 	select SPL_OF_CONTROL if SPL
 	select SPL_SEPARATE_BSS if SPL
 	select SUPPORT_SPL
@@ -1131,6 +1138,8 @@ config ARCH_ZYNQMP
 	select OF_CONTROL
 	select SPL_BOARD_INIT if SPL
 	select SPL_CLK if SPL
+	select SPL_DM_SPI if SPI
+	select SPL_DM_SPI_FLASH if SPL_DM_SPI
 	select SPL_DM_MAILBOX if SPL
 	select SPL_FIRMWARE if SPL
 	select SPL_SEPARATE_BSS if SPL
@@ -1680,6 +1689,8 @@ config ARCH_ROCKCHIP
 	select OF_CONTROL
 	select SPI
 	select SPL_DM if SPL
+	select SPL_DM_SPI if SPL
+	select SPL_DM_SPI_FLASH if SPL
 	select SYS_MALLOC_F
 	select SYS_THUMB_BUILD if !ARM64
 	imply ADC