MX28: use a clear name for DDR2 initialization

The mx28 prefix has been added to the initialization data and function
so it is clear by which SoC it is used as i.MX233 will have a specific
one. While on that, we also change it to static.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Marek Vasut <marex@denx.de>

arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c

@@ -31,7 +31,7 @@
 
 #include "mx28_init.h"
 
-uint32_t dram_vals[] = {
+static uint32_t mx28_dram_vals[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -88,14 +88,14 @@ void __mx28_adjust_memory_params(uint32_t *dram_vals)
 void mx28_adjust_memory_params(uint32_t *dram_vals)
 	__attribute__((weak, alias("__mx28_adjust_memory_params")));
 
-void init_m28_200mhz_ddr2(void)
+void init_mx28_200mhz_ddr2(void)
 {
 	int i;
 
-	mx28_adjust_memory_params(dram_vals);
+	mx28_adjust_memory_params(mx28_dram_vals);
 
-	for (i = 0; i < ARRAY_SIZE(dram_vals); i++)
-		writel(dram_vals[i], MXS_DRAM_BASE + (4 * i));
+	for (i = 0; i < ARRAY_SIZE(mx28_dram_vals); i++)
+		writel(mx28_dram_vals[i], MXS_DRAM_BASE + (4 * i));
 }
 
 void mx28_mem_init_clock(void)
@@ -230,7 +230,7 @@ void mx28_mem_init(void)
 	/* Clear START bit from DRAM_CTL16 */
 	clrbits_le32(MXS_DRAM_BASE + 0x40, 1);
 
-	init_m28_200mhz_ddr2();
+	init_mx28_200mhz_ddr2();
 
 	/* Clear SREFRESH bit from DRAM_CTL17 */
 	clrbits_le32(MXS_DRAM_BASE + 0x44, 1);