mxs: Rename 'mx28_dram_init' to 'mxs_dram_init'

The DRAM initialization, after SPL has complete, is exactly the same
for all mxs SoCs so we should name it accordinly.

The following boards has been changed:

 * apx4devkit
 * m28evk
 * mx28evk
 * sc_sps_1

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
diff --git a/arch/arm/cpu/arm926ejs/mxs/mxs.c b/arch/arm/cpu/arm926ejs/mxs/mxs.c
index a1769fd..c8cda6a 100644
--- a/arch/arm/cpu/arm926ejs/mxs/mxs.c
+++ b/arch/arm/cpu/arm926ejs/mxs/mxs.c
@@ -320,13 +320,13 @@
 }
 #endif
 
-int mx28_dram_init(void)
+int mxs_dram_init(void)
 {
 	struct mxs_spl_data *data = (struct mxs_spl_data *)
 		((CONFIG_SYS_TEXT_BASE - sizeof(struct mxs_spl_data)) & ~0xf);
 
 	if (data->mem_dram_size == 0) {
-		printf("MX28:\n"
+		printf("MXS:\n"
 			"Error, the RAM size passed up from SPL is 0!\n");
 		hang();
 	}
diff --git a/arch/arm/include/asm/arch-mxs/sys_proto.h b/arch/arm/include/asm/arch-mxs/sys_proto.h
index 9e4a4c9..fc84808 100644
--- a/arch/arm/include/asm/arch-mxs/sys_proto.h
+++ b/arch/arm/include/asm/arch-mxs/sys_proto.h
@@ -69,6 +69,6 @@
 	uint32_t	mem_dram_size;
 };
 
-int mx28_dram_init(void);
+int mxs_dram_init(void);
 
 #endif	/* __SYS_PROTO_H__ */
diff --git a/board/bluegiga/apx4devkit/apx4devkit.c b/board/bluegiga/apx4devkit/apx4devkit.c
index 5a1042e..ae48ab5 100644
--- a/board/bluegiga/apx4devkit/apx4devkit.c
+++ b/board/bluegiga/apx4devkit/apx4devkit.c
@@ -55,7 +55,7 @@
 
 int dram_init(void)
 {
-	return mx28_dram_init();
+	return mxs_dram_init();
 }
 
 int board_init(void)
diff --git a/board/denx/m28evk/m28evk.c b/board/denx/m28evk/m28evk.c
index 74da3ea..9473d10 100644
--- a/board/denx/m28evk/m28evk.c
+++ b/board/denx/m28evk/m28evk.c
@@ -72,7 +72,7 @@
 
 int dram_init(void)
 {
-	return mx28_dram_init();
+	return mxs_dram_init();
 }
 
 #ifdef	CONFIG_CMD_MMC
diff --git a/board/freescale/mx28evk/mx28evk.c b/board/freescale/mx28evk/mx28evk.c
index 1320277..867d3c8 100644
--- a/board/freescale/mx28evk/mx28evk.c
+++ b/board/freescale/mx28evk/mx28evk.c
@@ -64,7 +64,7 @@
 
 int dram_init(void)
 {
-	return mx28_dram_init();
+	return mxs_dram_init();
 }
 
 int board_init(void)
diff --git a/board/schulercontrol/sc_sps_1/sc_sps_1.c b/board/schulercontrol/sc_sps_1/sc_sps_1.c
index 5f58e0b..fda191a 100644
--- a/board/schulercontrol/sc_sps_1/sc_sps_1.c
+++ b/board/schulercontrol/sc_sps_1/sc_sps_1.c
@@ -72,7 +72,7 @@
 
 int dram_init(void)
 {
-	return mx28_dram_init();
+	return mxs_dram_init();
 }
 
 #ifdef	CONFIG_CMD_MMC