[PATCH RFC u-boot-mvebu 3/6] arm: mvebu: Convert BOOT_FROM_* constants to function macros

[Pali Rohár]

This allows to merge BOOT_FROM_MMC and BOOT_FROM_MMC_ALT constants to one
macro. And also allows to extend other BOOT_FROM_* macros for other
variants.

Signed-off-by: Pali Rohár <p...@kernel.org>
---
 arch/arm/mach-mvebu/cpu.c              | 16 +++++++++-------
 arch/arm/mach-mvebu/include/mach/soc.h | 25 ++++++++++++-------------
 2 files changed, 21 insertions(+), 20 deletions(-)

diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c
index daa84c03fcdc..cb3f3afad269 100644
--- a/arch/arm/mach-mvebu/cpu.c
+++ b/arch/arm/mach-mvebu/cpu.c
@@ -98,24 +98,26 @@ u32 get_boot_device(void)
        val = readl(CONFIG_SAR_REG);    /* SAR - Sample At Reset */
        boot_device = (val & BOOT_DEV_SEL_MASK) >> BOOT_DEV_SEL_OFFS;
        debug("SAR_REG=0x%08x boot_device=0x%x\n", val, boot_device);
-       switch (boot_device) {
 #ifdef BOOT_FROM_NAND
-       case BOOT_FROM_NAND:
+       if (BOOT_FROM_NAND(boot_device))
                return BOOT_DEVICE_NAND;
 #endif
 #ifdef BOOT_FROM_MMC
-       case BOOT_FROM_MMC:
-       case BOOT_FROM_MMC_ALT:
+       if (BOOT_FROM_MMC(boot_device))
                return BOOT_DEVICE_MMC1;
 #endif
-       case BOOT_FROM_UART:
+#ifdef BOOT_FROM_UART
+       if (BOOT_FROM_UART(boot_device))
                return BOOT_DEVICE_UART;
+#endif
 #ifdef BOOT_FROM_SATA
-       case BOOT_FROM_SATA:
+       if (BOOT_FROM_SATA(boot_device))
                return BOOT_DEVICE_SATA;
 #endif
-       case BOOT_FROM_SPI:
+#ifdef BOOT_FROM_SPI
+       if (BOOT_FROM_SPI(boot_device))
                return BOOT_DEVICE_SPI;
+#endif
        default:
                return BOOT_DEVICE_BOOTROM;
        };
diff --git a/arch/arm/mach-mvebu/include/mach/soc.h 
b/arch/arm/mach-mvebu/include/mach/soc.h
index 5fdce8fe4e7e..aa42db36a1ee 100644
--- a/arch/arm/mach-mvebu/include/mach/soc.h
+++ b/arch/arm/mach-mvebu/include/mach/soc.h
@@ -143,8 +143,8 @@
 #define BOOT_DEV_SEL_OFFS      3
 #define BOOT_DEV_SEL_MASK      (0x3f << BOOT_DEV_SEL_OFFS)
 
-#define BOOT_FROM_UART         0x30
-#define BOOT_FROM_SPI          0x38
+#define BOOT_FROM_UART(x)      (x == 0x30)
+#define BOOT_FROM_SPI(x)       (x == 0x38)
 
 #define CONFIG_SYS_TCLK                ((readl(CONFIG_SAR_REG) & BIT(20)) ? \
                                 200000000 : 166000000)
@@ -160,12 +160,11 @@
 #define BOOT_DEV_SEL_OFFS      4
 #define BOOT_DEV_SEL_MASK      (0x3f << BOOT_DEV_SEL_OFFS)
 
-#define BOOT_FROM_NAND         0x0A
-#define BOOT_FROM_SATA         0x2A
-#define BOOT_FROM_UART         0x28
-#define BOOT_FROM_SPI          0x32
-#define BOOT_FROM_MMC          0x30
-#define BOOT_FROM_MMC_ALT      0x31
+#define BOOT_FROM_NAND(x)      (x == 0x0A)
+#define BOOT_FROM_SATA(x)      (x == 0x2A)
+#define BOOT_FROM_UART(x)      (x == 0x28)
+#define BOOT_FROM_SPI(x)       (x == 0x32)
+#define BOOT_FROM_MMC(x)       (x == 0x30 || x == 0x31)
 
 #define CONFIG_SYS_TCLK                ((readl(CONFIG_SAR_REG) & BIT(15)) ? \
                                 200000000 : 250000000)
@@ -182,9 +181,9 @@
 #define BOOT_DEV_SEL_OFFS      11
 #define BOOT_DEV_SEL_MASK      (0x7 << BOOT_DEV_SEL_OFFS)
 
-#define BOOT_FROM_NAND         0x1
-#define BOOT_FROM_UART         0x2
-#define BOOT_FROM_SPI          0x3
+#define BOOT_FROM_NAND(x)      (x == 0x1)
+#define BOOT_FROM_UART(x)      (x == 0x2)
+#define BOOT_FROM_SPI(x)       (x == 0x3)
 
 #define CONFIG_SYS_TCLK                200000000       /* 200MHz */
 #elif defined(CONFIG_ARMADA_XP)
@@ -204,8 +203,8 @@
 #define BOOT_DEV_SEL_OFFS      5
 #define BOOT_DEV_SEL_MASK      (0xf << BOOT_DEV_SEL_OFFS)
 
-#define BOOT_FROM_UART         0x2
-#define BOOT_FROM_SPI          0x3
+#define BOOT_FROM_UART(x)      (x == 0x2)
+#define BOOT_FROM_SPI(x)       (x == 0x3)
 
 #define CONFIG_SYS_TCLK                250000000       /* 250MHz */
 #endif
-- 
2.20.1