[PATCH 4/5] imx: spl: Remove ifdefs in spl_mmc_boot_mode()

[Harald Seiler]

It is hard to read code which contains nested ifdef blocks.  Replace
them with normal if-blocks and the IS_ENABLED() macro.  This is not only
more readable but also helps as both arms are validated by the compiler
in all cases.

Signed-off-by: Harald Seiler <hws at denx.de>
---
 arch/arm/mach-imx/spl.c | 38 ++++++++++++++++----------------------
 1 file changed, 16 insertions(+), 22 deletions(-)

diff --git a/arch/arm/mach-imx/spl.c b/arch/arm/mach-imx/spl.c
index e3f51e45edf2..32d78b799c36 100644
--- a/arch/arm/mach-imx/spl.c
+++ b/arch/arm/mach-imx/spl.c
@@ -197,23 +197,19 @@ u32 spl_mmc_boot_mode(const u32 boot_device)
 	case SD1_BOOT:
 	case SD2_BOOT:
 	case SD3_BOOT:
-#if defined(CONFIG_SPL_FAT_SUPPORT)
-		return MMCSD_MODE_FS;
-#else
-		return MMCSD_MODE_RAW;
-#endif
-		break;
+		if (IS_ENABLED(CONFIG_SPL_FAT_SUPPORT))
+			return MMCSD_MODE_FS;
+		else
+			return MMCSD_MODE_RAW;
 	case MMC1_BOOT:
 	case MMC2_BOOT:
 	case MMC3_BOOT:
-#if defined(CONFIG_SPL_FAT_SUPPORT)
-		return MMCSD_MODE_FS;
-#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
-		return MMCSD_MODE_EMMCBOOT;
-#else
-		return MMCSD_MODE_RAW;
-#endif
-		break;
+		if (IS_ENABLED(CONFIG_SPL_FAT_SUPPORT))
+			return MMCSD_MODE_FS;
+		else if (IS_ENABLED(CONFIG_SUPPORT_EMMC_BOOT))
+			return MMCSD_MODE_EMMCBOOT;
+		else
+			return MMCSD_MODE_RAW;
 	default:
 		puts("spl: ERROR:  unsupported device\n");
 		hang();
@@ -224,14 +220,12 @@ u32 spl_mmc_boot_mode(const u32 boot_device)
 	case BOOT_DEVICE_MMC1:
 	case BOOT_DEVICE_MMC2:
 	case BOOT_DEVICE_MMC2_2:
-#if defined(CONFIG_SPL_FS_FAT)
-		return MMCSD_MODE_FS;
-#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
-		return MMCSD_MODE_EMMCBOOT;
-#else
-		return MMCSD_MODE_RAW;
-#endif
-		break;
+		if (IS_ENABLED(CONFIG_SPL_FS_FAT))
+			return MMCSD_MODE_FS;
+		else if (IS_ENABLED(CONFIG_SUPPORT_EMMC_BOOT))
+			return MMCSD_MODE_EMMCBOOT;
+		else
+			return MMCSD_MODE_RAW;
 	default:
 		puts("spl: ERROR:  unsupported device\n");
 		hang();
-- 
2.26.1