mtd: spi: Clean up usage of CONFIG_SPI_FLASH_MTD

Most boards currently use SPI_FLASH_MTD only in U-Boot proper, not in
SPL. They often rely on hacks in the board header files to include
this option conditionally. To be able to fix this, we previously
introduced a separate option SPL_SPI_FLASH_MTD.

Therefore we can now adjust the Makefile and change the code in
sf_probe.c and sf_internal.h to use CONFIG_IS_ENABLED(SPI_FLASH_MTD).

We also need to move all occurences of CONFIG_SPI_FLASH_MTD from the
header files to the according defconfigs. The affected boards are
socfpga, aristainetos, cm_fx6, display5, ventana, rcar-gen2, dh_imx6
and da850evm.

We do this all in one patch to guarantee bisectibility.

This change was tested with buildman to make sure it does not
introduce any regressions by comparing the resulting binary sizes.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/include/configs/aristainetos-common.h b/include/configs/aristainetos-common.h
index e998d9b..b451c7e 100644
--- a/include/configs/aristainetos-common.h
+++ b/include/configs/aristainetos-common.h
@@ -30,7 +30,6 @@
 #define CONFIG_ETHPRIME			"FEC"
 #define CONFIG_FEC_MXC_PHYADDR		0
 
-#define CONFIG_SPI_FLASH_MTD
 #define CONFIG_SYS_SPI_ST_ENABLE_WP_PIN
 
 #define CONFIG_EXTRA_ENV_SETTINGS \
diff --git a/include/configs/cm_fx6.h b/include/configs/cm_fx6.h
index b957e9c..c1a6625 100644
--- a/include/configs/cm_fx6.h
+++ b/include/configs/cm_fx6.h
@@ -38,13 +38,6 @@
 #define CONFIG_MXC_UART_BASE		UART4_BASE
 #define CONFIG_SYS_BAUDRATE_TABLE	{9600, 19200, 38400, 57600, 115200}
 
-/* SPI flash */
-
-/* MTD support */
-#ifndef CONFIG_SPL_BUILD
-#define CONFIG_SPI_FLASH_MTD
-#endif
-
 /* Environment */
 #define CONFIG_ENV_SECT_SIZE		(64 * 1024)
 #define CONFIG_ENV_SIZE			(8 * 1024)
diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h
index 41f0813..6876134 100644
--- a/include/configs/da850evm.h
+++ b/include/configs/da850evm.h
@@ -190,16 +190,11 @@
 #define CONFIG_ENV_SECT_SIZE		CONFIG_SYS_FLASH_SECT_SZ
 #endif
 
-#ifdef CONFIG_USE_SPIFLASH
-#ifdef CONFIG_ENV_IS_IN_SPI_FLASH
+#if defined(CONFIG_USE_SPIFLASH) && defined(CONFIG_ENV_IS_IN_SPI_FLASH)
 #define CONFIG_ENV_SIZE			(64 << 10)
 #define CONFIG_ENV_OFFSET		(512 << 10)
 #define CONFIG_ENV_SECT_SIZE	(64 << 10)
 #endif
-#ifdef CONFIG_SPL_BUILD
-#undef CONFIG_SPI_FLASH_MTD
-#endif
-#endif
 
 /*
  * U-Boot general configuration
diff --git a/include/configs/dh_imx6.h b/include/configs/dh_imx6.h
index a854d0b..86c1192 100644
--- a/include/configs/dh_imx6.h
+++ b/include/configs/dh_imx6.h
@@ -59,7 +59,6 @@
 #if defined(CONFIG_SPL_BUILD)
 #undef CONFIG_DM_SPI
 #undef CONFIG_DM_SPI_FLASH
-#undef CONFIG_SPI_FLASH_MTD
 #endif
 
 /* UART */
diff --git a/include/configs/display5.h b/include/configs/display5.h
index d806415..65dae1f 100644
--- a/include/configs/display5.h
+++ b/include/configs/display5.h
@@ -39,7 +39,6 @@
 #if defined(CONFIG_SPL_BUILD)
 #undef CONFIG_DM_SPI
 #undef CONFIG_DM_SPI_FLASH
-#undef CONFIG_SPI_FLASH_MTD
 #endif
 
 /* Below values are "dummy" - only to avoid build break */
diff --git a/include/configs/gw_ventana.h b/include/configs/gw_ventana.h
index a27627e..e543061 100644
--- a/include/configs/gw_ventana.h
+++ b/include/configs/gw_ventana.h
@@ -47,15 +47,7 @@
 #define CONFIG_MXC_UART
 #define CONFIG_MXC_UART_BASE	       UART2_BASE
 
-#ifdef CONFIG_SPI_FLASH
-
-/* SPI */
-#ifdef CONFIG_CMD_SF
-  #define CONFIG_SPI_FLASH_MTD
-					     /* GPIO 3-19 (21248) */
-#endif
-
-#elif defined(CONFIG_SPL_NAND_SUPPORT)
+#if !defined(CONFIG_SPI_FLASH) && defined(CONFIG_SPL_NAND_SUPPORT)
 /* Enable NAND support */
 #ifdef CONFIG_CMD_NAND
   #define CONFIG_SYS_MAX_NAND_DEVICE	1
diff --git a/include/configs/rcar-gen2-common.h b/include/configs/rcar-gen2-common.h
index 71a5909..e940a8b 100644
--- a/include/configs/rcar-gen2-common.h
+++ b/include/configs/rcar-gen2-common.h
@@ -46,11 +46,9 @@
 #define CONFIG_ENV_SIZE_REDUND	(CONFIG_SYS_MONITOR_LEN)
 
 /* SF MTD */
-#if defined(CONFIG_SPI_FLASH_MTD) && !defined(CONFIG_SPL_BUILD)
-#else
+#ifdef CONFIG_SPL_BUILD
 #undef CONFIG_DM_SPI
 #undef CONFIG_DM_SPI_FLASH
-#undef CONFIG_SPI_FLASH_MTD
 #endif
 
 /* Timer */
diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h
index 94268ed..baa2143 100644
--- a/include/configs/socfpga_common.h
+++ b/include/configs/socfpga_common.h
@@ -132,10 +132,6 @@
 /*
  * QSPI support
  */
-/* Enable multiple SPI NOR flash manufacturers */
-#ifndef CONFIG_SPL_BUILD
-#define CONFIG_SPI_FLASH_MTD
-#endif
 /* QSPI reference clock */
 #ifndef __ASSEMBLY__
 unsigned int cm_get_qspi_controller_clk_hz(void);