sunxi: dram: Un-inline dram helper functions

Move the dram helper functions to a separate C file, rather then having them
as inline helpers in dram.h. This saves 144 bytes in the .text segment for
sun6i builds.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/cpu/armv7/sunxi/Makefile

@@ -11,6 +11,7 @@ obj-y	+= timer.o
 obj-y	+= board.o
 obj-y	+= clock.o
 obj-y	+= cpu_info.o
+obj-y	+= dram_helpers.o
 obj-y	+= pinmux.o
 obj-y	+= usbc.o
 obj-$(CONFIG_MACH_SUN6I)	+= prcm.o

arch/arm/cpu/armv7/sunxi/dram_helpers.c

@@ -0,0 +1,37 @@
+/*
+ * DRAM init helper functions
+ *
+ * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/dram.h>
+
+/*
+ * Wait up to 1s for value to be set in given part of reg.
+ */
+void mctl_await_completion(u32 *reg, u32 mask, u32 val)
+{
+	unsigned long tmo = timer_get_us() + 1000000;
+
+	while ((readl(reg) & mask) != val) {
+		if (timer_get_us() > tmo)
+			panic("Timeout initialising DRAM\n");
+	}
+}
+
+/*
+ * Test if memory at offset offset matches memory at begin of DRAM
+ */
+bool mctl_mem_matches(u32 offset)
+{
+	/* Try to write different values to RAM at two addresses */
+	writel(0, CONFIG_SYS_SDRAM_BASE);
+	writel(0xaa55aa55, CONFIG_SYS_SDRAM_BASE + offset);
+	/* Check if the same value is actually observed when reading back */
+	return readl(CONFIG_SYS_SDRAM_BASE) ==
+	       readl(CONFIG_SYS_SDRAM_BASE + offset);
+}

arch/arm/include/asm/arch-sunxi/dram.h

@@ -25,31 +25,7 @@
 #endif
 
 unsigned long sunxi_dram_init(void);
-
-/*
- * Wait up to 1s for value to be set in given part of reg.
- */
-static inline void mctl_await_completion(u32 *reg, u32 mask, u32 val)
-{
-	unsigned long tmo = timer_get_us() + 1000000;
-
-	while ((readl(reg) & mask) != val) {
-		if (timer_get_us() > tmo)
-			panic("Timeout initialising DRAM\n");
-	}
-}
-
-/*
- * Test if memory at offset offset matches memory at begin of DRAM
- */
-static inline bool mctl_mem_matches(u32 offset)
-{
-	/* Try to write different values to RAM at two addresses */
-	writel(0, CONFIG_SYS_SDRAM_BASE);
-	writel(0xaa55aa55, CONFIG_SYS_SDRAM_BASE + offset);
-	/* Check if the same value is actually observed when reading back */
-	return readl(CONFIG_SYS_SDRAM_BASE) ==
-	       readl(CONFIG_SYS_SDRAM_BASE + offset);
-}
+void mctl_await_completion(u32 *reg, u32 mask, u32 val);
+bool mctl_mem_matches(u32 offset);
 
 #endif /* _SUNXI_DRAM_H */