ENGR00133268 MX28: DVFS support mDDR

Support mDDR in DVFS driver,using config menu
system type->Freescale i.MXS implementtations->
Memory type is mDDR to select mDDR as memory

Signed-off-by: Frank Li <frank.li@freescale.com>

5 files changed, 629 insertions, 5 deletions

diff --git a/arch/arm/mach-mx28/Kconfig b/arch/arm/mach-mx28/Kconfig
index f099ca35ca83..dc1d8b115869 100644
--- a/arch/arm/mach-mx28/Kconfig
+++ b/arch/arm/mach-mx28/Kconfig
@@ -18,3 +18,8 @@ config MXS_TIMER_WITH_MACH
 	bool "System Timer support Compare Match interrupt"
 	default y
 
+config MEM_mDDR
+	bool "Memory type is mDDR"
+	depends on ARCH_MX28
+	help
+	  Say Y to select mDDR memory
diff --git a/arch/arm/mach-mx28/bus_freq.c b/arch/arm/mach-mx28/bus_freq.c
index ef01a41fc095..920c6309e886 100644
--- a/arch/arm/mach-mx28/bus_freq.c
+++ b/arch/arm/mach-mx28/bus_freq.c
@@ -48,6 +48,20 @@
 #define DIGCTRL_BASE_ADDR IO_ADDRESS(DIGCTL_PHYS_ADDR)
 #define BF(value, field) (((value) << BP_##field) & BM_##field)
 
+#ifdef CONFIG_MEM_mDDR
+struct profile profiles[] = {
+	{ 454736, 151570, 205710, 0, 1550000,
+	1450000, 355000, 3300000, 1750000, 24000, 0 },
+	{ 360000, 120000, 130910, 0, 1350000,
+	1250000, 200000, 3300000, 1750000, 24000, 0 },
+	{ 261818, 130910, 130910, 0, 1350000,
+	1250000, 173000, 3300000, 1750000, 24000, 0 },
+	{  64000,  64000, 240000, 3, 1350000,
+	1250000, 150000, 3300000, 1750000, 24000, 0 },
+	{  0,  0,  0, 0, 0,
+	0, 0, 0, 0, 0, 0 },
+};
+#else
 struct profile profiles[] = {
 	{ 454736, 151570, 205710, 0, 1550000,
 	1450000, 355000, 3300000, 1750000, 24000, 0 },
@@ -60,7 +74,7 @@ struct profile profiles[] = {
 	{  0,  0,  0, 0, 0,
 	0, 0, 0, 0, 0, 0 },
 };
-
+#endif
 static struct device *busfreq_dev;
 static struct clk *usb_clk0;
 static struct clk *usb_clk1;
diff --git a/arch/arm/mach-mx28/clock.c b/arch/arm/mach-mx28/clock.c
index ae6f49d4ae41..2232afb0199b 100644
--- a/arch/arm/mach-mx28/clock.c
+++ b/arch/arm/mach-mx28/clock.c
@@ -897,7 +897,24 @@ static int emi_set_rate(struct clk *clk, unsigned long rate)
 	memcpy(f, mxs_ram_freq_scale,
 	       (unsigned int)mxs_ram_freq_scale_end -
 	       (unsigned int)mxs_ram_freq_scale);
-
+#ifdef CONFIG_MEM_mDDR
+	if (rate <= 24000000) {
+		emi.emi_div = 20;
+		emi.frac_div = 18;
+		emi.new_freq = 24;
+		mDDREmiController_24MHz();
+	} else if (rate <= 133000000) {
+		emi.emi_div = 3;
+		emi.frac_div = 22;
+		emi.new_freq = 133;
+		mDDREmiController_133MHz();
+	} else {
+		emi.emi_div = 2;
+		emi.frac_div = 22;
+		emi.new_freq = 200;
+		mDDREmiController_200MHz();
+		}
+#else
 	if (rate <= 133000000) {
 		emi.emi_div = 3;
 		emi.frac_div = 22;
@@ -914,6 +931,7 @@ static int emi_set_rate(struct clk *clk, unsigned long rate)
 		emi.new_freq = 200;
 		DDR2EmiController_EDE1116_200MHz();
 		}
+#endif
 
 	local_irq_disable();
 	local_fiq_disable();
diff --git a/arch/arm/mach-mx28/emi_settings.c b/arch/arm/mach-mx28/emi_settings.c
index 3ca574fd41b3..918e39deb439 100644
--- a/arch/arm/mach-mx28/emi_settings.c
+++ b/arch/arm/mach-mx28/emi_settings.c
@@ -677,3 +677,587 @@ void DDR2EmiController_EDE1116_200MHz(void)
 	DRAM_REG[189] = 0xffffffff;
 
 }
+void mDDREmiController_24MHz(void)
+{
+	DRAM_REG[0] = 0x00000000;
+	DRAM_REG[1] = 0x00000000;
+	DRAM_REG[2] = 0x00000000;
+	DRAM_REG[3] = 0x00000000;
+	DRAM_REG[4] = 0x00000000;
+	DRAM_REG[5] = 0x00000000;
+	DRAM_REG[6] = 0x00000000;
+	DRAM_REG[7] = 0x00000000;
+	DRAM_REG[8] = 0x00000000;
+	DRAM_REG[9] = 0x00000000;
+	DRAM_REG[10] = 0x00000000;
+	DRAM_REG[11] = 0x00000000;
+	DRAM_REG[12] = 0x00000000;
+	DRAM_REG[13] = 0x00000000;
+	DRAM_REG[14] = 0x00000000;
+	DRAM_REG[15] = 0x00000000;
+	DRAM_REG[16] = 0x00000000;
+	DRAM_REG[17] = 0x00000100;
+	DRAM_REG[18] = 0x00000000;
+	DRAM_REG[19] = 0x00000000;
+	DRAM_REG[20] = 0x00000000;
+	DRAM_REG[21] = 0x00000001;
+	DRAM_REG[22] = 0x00000000;
+	DRAM_REG[23] = 0x00000000;
+	DRAM_REG[24] = 0x00000000;
+	DRAM_REG[25] = 0x00000000;
+	DRAM_REG[26] = 0x00010101;
+	DRAM_REG[27] = 0x01010101;
+	DRAM_REG[28] = 0x000f0f01;
+	DRAM_REG[29] = 0x0f02010a;
+	DRAM_REG[30] = 0x00000000;
+	DRAM_REG[31] = 0x00000101;
+	DRAM_REG[32] = 0x00000100;
+	DRAM_REG[33] = 0x00000100;
+	DRAM_REG[34] = 0x01000000;
+	DRAM_REG[35] = 0x00000002;
+	DRAM_REG[36] = 0x01010000;
+	DRAM_REG[37] = 0x05060301;
+	DRAM_REG[38] = 0x02000001;
+	DRAM_REG[39] = 0x06000000;
+	DRAM_REG[40] = 0x020012c0;
+	DRAM_REG[41] = 0x00020102;
+	DRAM_REG[42] = 0x00068601;
+	DRAM_REG[43] = 0x01030055;
+	DRAM_REG[44] = 0x03010001;
+	DRAM_REG[45] = 0x00040004;
+	DRAM_REG[46] = 0x00000000;
+	DRAM_REG[47] = 0x00000000;
+	DRAM_REG[48] = 0x00012100;
+	DRAM_REG[49] = 0xffff0303;
+	DRAM_REG[50] = 0x00012100;
+	DRAM_REG[51] = 0xffff0303;
+	DRAM_REG[52] = 0x00012100;
+	DRAM_REG[53] = 0xffff0303;
+	DRAM_REG[54] = 0x00012100;
+	DRAM_REG[55] = 0xffff0303;
+	DRAM_REG[56] = 0x00000003;
+	DRAM_REG[57] = 0x00000000;
+	DRAM_REG[58] = 0x00000000;
+	DRAM_REG[59] = 0x00000000;
+	DRAM_REG[60] = 0x00000000;
+	DRAM_REG[61] = 0x00000000;
+	DRAM_REG[62] = 0x00000000;
+	DRAM_REG[63] = 0x00000000;
+	DRAM_REG[64] = 0x00000000;
+	DRAM_REG[65] = 0x00000000;
+	DRAM_REG[66] = 0x00000055;
+	DRAM_REG[67] = 0x01000f02;
+	DRAM_REG[68] = 0x00550055;
+	DRAM_REG[69] = 0x00000200;
+	DRAM_REG[70] = 0x00020006;
+	DRAM_REG[71] = 0xf3004925;
+	DRAM_REG[72] = 0xf3004925;
+	DRAM_REG[73] = 0xf3004925;
+	DRAM_REG[74] = 0xf3004925;
+	DRAM_REG[75] = 0x07400300;
+	DRAM_REG[76] = 0x07400300;
+	DRAM_REG[77] = 0x07400300;
+	DRAM_REG[78] = 0x07400300;
+	DRAM_REG[79] = 0x00800004;
+	DRAM_REG[80] = 0x00000000;
+	DRAM_REG[81] = 0x00000000;
+	DRAM_REG[82] = 0x01000000;
+	DRAM_REG[83] = 0x01020408;
+	DRAM_REG[84] = 0x08040201;
+	DRAM_REG[85] = 0x000f1133;
+	DRAM_REG[86] = 0x00000000;
+	DRAM_REG[87] = 0x1034a138;
+	DRAM_REG[88] = 0x1034a138;
+	DRAM_REG[89] = 0x1034a138;
+	DRAM_REG[90] = 0x1034a138;
+	DRAM_REG[91] = 0x00329f53;
+	DRAM_REG[92] = 0x00329f53;
+	DRAM_REG[93] = 0x00329f53;
+	DRAM_REG[94] = 0x00329f53;
+	DRAM_REG[95] = 0x00000000;
+	DRAM_REG[96] = 0x00000000;
+	DRAM_REG[97] = 0x00000000;
+	DRAM_REG[98] = 0x00000000;
+	DRAM_REG[99] = 0x00000000;
+	DRAM_REG[100] = 0x00000000;
+	DRAM_REG[101] = 0x00000000;
+	DRAM_REG[102] = 0x00000000;
+	DRAM_REG[103] = 0x00000000;
+	DRAM_REG[104] = 0x00000000;
+	DRAM_REG[105] = 0x00000000;
+	DRAM_REG[106] = 0x00000000;
+	DRAM_REG[107] = 0x00000000;
+	DRAM_REG[108] = 0x00000000;
+	DRAM_REG[109] = 0x00000000;
+	DRAM_REG[110] = 0x00000000;
+	DRAM_REG[111] = 0x00000000;
+	DRAM_REG[112] = 0x00000000;
+	DRAM_REG[113] = 0x00000000;
+	DRAM_REG[114] = 0x00000000;
+	DRAM_REG[115] = 0x00000000;
+	DRAM_REG[116] = 0x00000000;
+	DRAM_REG[117] = 0x00000000;
+	DRAM_REG[118] = 0x00000000;
+	DRAM_REG[119] = 0x00000000;
+	DRAM_REG[120] = 0x00000000;
+	DRAM_REG[121] = 0x00000000;
+	DRAM_REG[122] = 0x00000000;
+	DRAM_REG[123] = 0x00000000;
+	DRAM_REG[124] = 0x00000000;
+	DRAM_REG[125] = 0x00000000;
+	DRAM_REG[126] = 0x00000000;
+	DRAM_REG[127] = 0x00000000;
+	DRAM_REG[128] = 0x00000000;
+	DRAM_REG[129] = 0x00000000;
+	DRAM_REG[130] = 0x00000000;
+	DRAM_REG[131] = 0x00000000;
+	DRAM_REG[132] = 0x00000000;
+	DRAM_REG[133] = 0x00000000;
+	DRAM_REG[134] = 0x00000000;
+	DRAM_REG[135] = 0x00000000;
+	DRAM_REG[136] = 0x00000000;
+	DRAM_REG[137] = 0x00000000;
+	DRAM_REG[138] = 0x00000000;
+	DRAM_REG[139] = 0x00000000;
+	DRAM_REG[140] = 0x00000000;
+	DRAM_REG[141] = 0x00000000;
+	DRAM_REG[142] = 0x00000000;
+	DRAM_REG[143] = 0x00000000;
+	DRAM_REG[144] = 0x00000000;
+	DRAM_REG[145] = 0x00000000;
+	DRAM_REG[146] = 0x00000000;
+	DRAM_REG[147] = 0x00000000;
+	DRAM_REG[148] = 0x00000000;
+	DRAM_REG[149] = 0x00000000;
+	DRAM_REG[150] = 0x00000000;
+	DRAM_REG[151] = 0x00000000;
+	DRAM_REG[152] = 0x00000000;
+	DRAM_REG[153] = 0x00000000;
+	DRAM_REG[154] = 0x00000000;
+	DRAM_REG[155] = 0x00000000;
+	DRAM_REG[156] = 0x00000000;
+	DRAM_REG[157] = 0x00000000;
+	DRAM_REG[158] = 0x00000000;
+	DRAM_REG[159] = 0x00000000;
+	DRAM_REG[160] = 0x00000000;
+	DRAM_REG[161] = 0x00000000;
+	DRAM_REG[162] = 0x00000000;
+	DRAM_REG[163] = 0x00010301;
+	DRAM_REG[164] = 0x00000002;
+	DRAM_REG[165] = 0x00000000;
+	DRAM_REG[166] = 0x00000000;
+	DRAM_REG[167] = 0x00000000;
+	DRAM_REG[168] = 0x00000000;
+	DRAM_REG[169] = 0x00000000;
+	DRAM_REG[170] = 0x00000000;
+	DRAM_REG[171] = 0x01010000;
+	DRAM_REG[172] = 0x01000100;
+	DRAM_REG[173] = 0x03030000;
+	DRAM_REG[174] = 0x00020303;
+	DRAM_REG[175] = 0x01010202;
+	DRAM_REG[176] = 0x00000000;
+	DRAM_REG[177] = 0x01010101;
+	DRAM_REG[178] = 0x21002101;
+	DRAM_REG[179] = 0x00005500;
+	DRAM_REG[180] = 0x00550055;
+	DRAM_REG[181] = 0x00320032;
+	DRAM_REG[182] = 0x00320032;
+	DRAM_REG[183] = 0x00000000;
+	DRAM_REG[184] = 0x00000000;
+	DRAM_REG[185] = 0x00000000;
+	DRAM_REG[186] = 0x00000000;
+	DRAM_REG[187] = 0x00000000;
+	DRAM_REG[188] = 0x00000000;
+	DRAM_REG[189] = 0xffffffff;
+}
+
+void mDDREmiController_133MHz(void)
+{
+	DRAM_REG[0] = 0x00000000;
+	DRAM_REG[1] = 0x00000000;
+	DRAM_REG[2] = 0x00000000;
+	DRAM_REG[3] = 0x00000000;
+	DRAM_REG[4] = 0x00000000;
+	DRAM_REG[5] = 0x00000000;
+	DRAM_REG[6] = 0x00000000;
+	DRAM_REG[7] = 0x00000000;
+	DRAM_REG[8] = 0x00000000;
+	DRAM_REG[9] = 0x00000000;
+	DRAM_REG[10] = 0x00000000;
+	DRAM_REG[11] = 0x00000000;
+	DRAM_REG[12] = 0x00000000;
+	DRAM_REG[13] = 0x00000000;
+	DRAM_REG[14] = 0x00000000;
+	DRAM_REG[15] = 0x00000000;
+	DRAM_REG[16] = 0x00000000;
+	DRAM_REG[17] = 0x00000100;
+	DRAM_REG[18] = 0x00000000;
+	DRAM_REG[19] = 0x00000000;
+	DRAM_REG[20] = 0x00000000;
+	DRAM_REG[21] = 0x00000000;
+	DRAM_REG[22] = 0x00000000;
+	DRAM_REG[23] = 0x00000000;
+	DRAM_REG[24] = 0x00000000;
+	DRAM_REG[25] = 0x00000000;
+	DRAM_REG[26] = 0x00010101;
+	DRAM_REG[27] = 0x01010101;
+	DRAM_REG[28] = 0x000f0f01;
+	DRAM_REG[29] = 0x0f02010a;
+	DRAM_REG[30] = 0x00000000;
+	DRAM_REG[31] = 0x00000101;
+	DRAM_REG[32] = 0x00000100;
+	DRAM_REG[33] = 0x00000100;
+	DRAM_REG[34] = 0x01000000;
+	DRAM_REG[35] = 0x00000002;
+	DRAM_REG[36] = 0x01010000;
+	DRAM_REG[37] = 0x07060301;
+	DRAM_REG[38] = 0x04000001;
+	DRAM_REG[39] = 0x0a000000;
+	DRAM_REG[40] = 0x02000020;
+	DRAM_REG[41] = 0x00020208;
+	DRAM_REG[42] = 0x00246c06;
+	DRAM_REG[43] = 0x020f0200;
+	DRAM_REG[44] = 0x03020002;
+	DRAM_REG[45] = 0x00150013;
+	DRAM_REG[46] = 0x00000000;
+	DRAM_REG[47] = 0x00000000;
+	DRAM_REG[48] = 0x00012100;
+	DRAM_REG[49] = 0xffff0303;
+	DRAM_REG[50] = 0x00012100;
+	DRAM_REG[51] = 0xffff0303;
+	DRAM_REG[52] = 0x00012100;
+	DRAM_REG[53] = 0xffff0303;
+	DRAM_REG[54] = 0x00012100;
+	DRAM_REG[55] = 0xffff0303;
+	DRAM_REG[56] = 0x00000003;
+	DRAM_REG[57] = 0x00000000;
+	DRAM_REG[58] = 0x00000000;
+	DRAM_REG[59] = 0x00000000;
+	DRAM_REG[60] = 0x00000000;
+	DRAM_REG[61] = 0x00000000;
+	DRAM_REG[62] = 0x00000000;
+	DRAM_REG[63] = 0x00000000;
+	DRAM_REG[64] = 0x00000000;
+	DRAM_REG[65] = 0x00000000;
+	DRAM_REG[66] = 0x00000200;
+	DRAM_REG[67] = 0x01000f02;
+	DRAM_REG[68] = 0x02000200;
+	DRAM_REG[69] = 0x00000200;
+	DRAM_REG[70] = 0x00020006;
+	DRAM_REG[71] = 0xf3004b27;
+	DRAM_REG[72] = 0xf3004b27;
+	DRAM_REG[73] = 0xf3004b27;
+	DRAM_REG[74] = 0xf3004b27;
+	DRAM_REG[75] = 0x07400310;
+	DRAM_REG[76] = 0x07400310;
+	DRAM_REG[77] = 0x07400310;
+	DRAM_REG[78] = 0x07400310;
+	DRAM_REG[79] = 0x00800004;
+	DRAM_REG[80] = 0x00000000;
+	DRAM_REG[81] = 0x00000000;
+	DRAM_REG[82] = 0x01000000;
+	DRAM_REG[83] = 0x01020408;
+	DRAM_REG[84] = 0x08040201;
+	DRAM_REG[85] = 0x000f1133;
+	DRAM_REG[86] = 0x00000000;
+	DRAM_REG[87] = 0x00099f36;
+	DRAM_REG[88] = 0x00099f36;
+	DRAM_REG[89] = 0x00099f36;
+	DRAM_REG[90] = 0x00099f36;
+	DRAM_REG[91] = 0x00091f0f;
+	DRAM_REG[92] = 0x00091f0f;
+	DRAM_REG[93] = 0x00091f0f;
+	DRAM_REG[94] = 0x00091f0f;
+	DRAM_REG[95] = 0x00000000;
+	DRAM_REG[96] = 0x00000000;
+	DRAM_REG[97] = 0x00000000;
+	DRAM_REG[98] = 0x00000000;
+	DRAM_REG[99] = 0x00000000;
+	DRAM_REG[100] = 0x00000000;
+	DRAM_REG[101] = 0x00000000;
+	DRAM_REG[102] = 0x00000000;
+	DRAM_REG[103] = 0x00000000;
+	DRAM_REG[104] = 0x00000000;
+	DRAM_REG[105] = 0x00000000;
+	DRAM_REG[106] = 0x00000000;
+	DRAM_REG[107] = 0x00000000;
+	DRAM_REG[108] = 0x00000000;
+	DRAM_REG[109] = 0x00000000;
+	DRAM_REG[110] = 0x00000000;
+	DRAM_REG[111] = 0x00000000;
+	DRAM_REG[112] = 0x00000000;
+	DRAM_REG[113] = 0x00000000;
+	DRAM_REG[114] = 0x00000000;
+	DRAM_REG[115] = 0x00000000;
+	DRAM_REG[116] = 0x00000000;
+	DRAM_REG[117] = 0x00000000;
+	DRAM_REG[118] = 0x00000000;
+	DRAM_REG[119] = 0x00000000;
+	DRAM_REG[120] = 0x00000000;
+	DRAM_REG[121] = 0x00000000;
+	DRAM_REG[122] = 0x00000000;
+	DRAM_REG[123] = 0x00000000;
+	DRAM_REG[124] = 0x00000000;
+	DRAM_REG[125] = 0x00000000;
+	DRAM_REG[126] = 0x00000000;
+	DRAM_REG[127] = 0x00000000;
+	DRAM_REG[128] = 0x00000000;
+	DRAM_REG[129] = 0x00000000;
+	DRAM_REG[130] = 0x00000000;
+	DRAM_REG[131] = 0x00000000;
+	DRAM_REG[132] = 0x00000000;
+	DRAM_REG[133] = 0x00000000;
+	DRAM_REG[134] = 0x00000000;
+	DRAM_REG[135] = 0x00000000;
+	DRAM_REG[136] = 0x00000000;
+	DRAM_REG[137] = 0x00000000;
+	DRAM_REG[138] = 0x00000000;
+	DRAM_REG[139] = 0x00000000;
+	DRAM_REG[140] = 0x00000000;
+	DRAM_REG[141] = 0x00000000;
+	DRAM_REG[142] = 0x00000000;
+	DRAM_REG[143] = 0x00000000;
+	DRAM_REG[144] = 0x00000000;
+	DRAM_REG[145] = 0x00000000;
+	DRAM_REG[146] = 0x00000000;
+	DRAM_REG[147] = 0x00000000;
+	DRAM_REG[148] = 0x00000000;
+	DRAM_REG[149] = 0x00000000;
+	DRAM_REG[150] = 0x00000000;
+	DRAM_REG[151] = 0x00000000;
+	DRAM_REG[152] = 0x00000000;
+	DRAM_REG[153] = 0x00000000;
+	DRAM_REG[154] = 0x00000000;
+	DRAM_REG[155] = 0x00000000;
+	DRAM_REG[156] = 0x00000000;
+	DRAM_REG[157] = 0x00000000;
+	DRAM_REG[158] = 0x00000000;
+	DRAM_REG[159] = 0x00000000;
+	DRAM_REG[160] = 0x00000000;
+	DRAM_REG[161] = 0x00000000;
+	DRAM_REG[162] = 0x00000000;
+	DRAM_REG[163] = 0x00010301;
+	DRAM_REG[164] = 0x00000002;
+	DRAM_REG[165] = 0x00000000;
+	DRAM_REG[166] = 0x00000000;
+	DRAM_REG[167] = 0x00000000;
+	DRAM_REG[168] = 0x00000000;
+	DRAM_REG[169] = 0x00000000;
+	DRAM_REG[170] = 0x00000000;
+	DRAM_REG[171] = 0x01010000;
+	DRAM_REG[172] = 0x01000100;
+	DRAM_REG[173] = 0x03030000;
+	DRAM_REG[174] = 0x00010303;
+	DRAM_REG[175] = 0x01010202;
+	DRAM_REG[176] = 0x00000000;
+	DRAM_REG[177] = 0x01020101;
+	DRAM_REG[178] = 0x21002101;
+	DRAM_REG[179] = 0x00020000;
+	DRAM_REG[180] = 0x02000200;
+	DRAM_REG[181] = 0x00320032;
+	DRAM_REG[182] = 0x00320032;
+	DRAM_REG[183] = 0x00000000;
+	DRAM_REG[184] = 0x00000000;
+	DRAM_REG[185] = 0x00000000;
+	DRAM_REG[186] = 0x00000000;
+	DRAM_REG[187] = 0x00000000;
+	DRAM_REG[188] = 0x00000000;
+	DRAM_REG[189] = 0xffffffff;
+}
+
+void mDDREmiController_200MHz(void)
+{
+
+	DRAM_REG[0] = 0x00000000;
+	DRAM_REG[1] = 0x00000000;
+	DRAM_REG[2] = 0x00000000;
+	DRAM_REG[3] = 0x00000000;
+	DRAM_REG[4] = 0x00000000;
+	DRAM_REG[5] = 0x00000000;
+	DRAM_REG[6] = 0x00000000;
+	DRAM_REG[7] = 0x00000000;
+	DRAM_REG[8] = 0x00000000;
+	DRAM_REG[9] = 0x00000000;
+	DRAM_REG[10] = 0x00000000;
+	DRAM_REG[11] = 0x00000000;
+	DRAM_REG[12] = 0x00000000;
+	DRAM_REG[13] = 0x00000000;
+	DRAM_REG[14] = 0x00000000;
+	DRAM_REG[15] = 0x00000000;
+	DRAM_REG[16] = 0x00000000;
+	DRAM_REG[17] = 0x00000100;
+	DRAM_REG[18] = 0x00000000;
+	DRAM_REG[19] = 0x00000000;
+	DRAM_REG[20] = 0x00000000;
+	DRAM_REG[21] = 0x00000000;
+	DRAM_REG[22] = 0x00000000;
+	DRAM_REG[23] = 0x00000000;
+	DRAM_REG[24] = 0x00000000;
+	DRAM_REG[25] = 0x00000000;
+	DRAM_REG[26] = 0x00010101;
+	DRAM_REG[27] = 0x01010101;
+	DRAM_REG[28] = 0x000f0f01;
+	DRAM_REG[29] = 0x0f02010a;
+	DRAM_REG[30] = 0x00000000;
+	DRAM_REG[31] = 0x00000101;
+	DRAM_REG[32] = 0x00000100;
+	DRAM_REG[33] = 0x00000100;
+	DRAM_REG[34] = 0x01000000;
+	DRAM_REG[35] = 0x00000002;
+	DRAM_REG[36] = 0x01010000;
+	DRAM_REG[37] = 0x08060301;
+	DRAM_REG[38] = 0x06000001;
+	DRAM_REG[39] = 0x0a000000;
+	DRAM_REG[40] = 0x02000020;
+	DRAM_REG[41] = 0x0002030b;
+	DRAM_REG[42] = 0x0036a608;
+	DRAM_REG[43] = 0x03160305;
+	DRAM_REG[44] = 0x03030002;
+	DRAM_REG[45] = 0x001f001c;
+	DRAM_REG[46] = 0x00000000;
+	DRAM_REG[47] = 0x00000000;
+	DRAM_REG[48] = 0x00012100;
+	DRAM_REG[49] = 0xffff0303;
+	DRAM_REG[50] = 0x00012100;
+	DRAM_REG[51] = 0xffff0303;
+	DRAM_REG[52] = 0x00012100;
+	DRAM_REG[53] = 0xffff0303;
+	DRAM_REG[54] = 0x00012100;
+	DRAM_REG[55] = 0xffff0303;
+	DRAM_REG[56] = 0x00000003;
+	DRAM_REG[57] = 0x00000000;
+	DRAM_REG[58] = 0x00000000;
+	DRAM_REG[59] = 0x00000000;
+	DRAM_REG[60] = 0x00000000;
+	DRAM_REG[61] = 0x00000000;
+	DRAM_REG[62] = 0x00000000;
+	DRAM_REG[63] = 0x00000000;
+	DRAM_REG[64] = 0x00000000;
+	DRAM_REG[65] = 0x00000000;
+	DRAM_REG[66] = 0x00000305;
+	DRAM_REG[67] = 0x01000f02;
+	DRAM_REG[68] = 0x03050305;
+	DRAM_REG[69] = 0x00000200;
+	DRAM_REG[70] = 0x00020007;
+	DRAM_REG[71] = 0xf4004b27;
+	DRAM_REG[72] = 0xf4004b27;
+	DRAM_REG[73] = 0xf4004b27;
+	DRAM_REG[74] = 0xf4004b27;
+	DRAM_REG[75] = 0x07000310;
+	DRAM_REG[76] = 0x07000310;
+	DRAM_REG[77] = 0x07000310;
+	DRAM_REG[78] = 0x07000310;
+	DRAM_REG[79] = 0x00800005;
+	DRAM_REG[80] = 0x00000000;
+	DRAM_REG[81] = 0x00000000;
+	DRAM_REG[82] = 0x01000000;
+	DRAM_REG[83] = 0x01020408;
+	DRAM_REG[84] = 0x08040201;
+	DRAM_REG[85] = 0x000f1133;
+	DRAM_REG[86] = 0x00000000;
+	DRAM_REG[87] = 0x00069f24;
+	DRAM_REG[88] = 0x00069f24;
+	DRAM_REG[89] = 0x00069f24;
+	DRAM_REG[90] = 0x00069f24;
+	DRAM_REG[91] = 0x00061f0a;
+	DRAM_REG[92] = 0x00061f0a;
+	DRAM_REG[93] = 0x00061f0a;
+	DRAM_REG[94] = 0x00061f0a;
+	DRAM_REG[95] = 0x00000000;
+	DRAM_REG[96] = 0x00000000;
+	DRAM_REG[97] = 0x00000000;
+	DRAM_REG[98] = 0x00000000;
+	DRAM_REG[99] = 0x00000000;
+	DRAM_REG[100] = 0x00000000;
+	DRAM_REG[101] = 0x00000000;
+	DRAM_REG[102] = 0x00000000;
+	DRAM_REG[103] = 0x00000000;
+	DRAM_REG[104] = 0x00000000;
+	DRAM_REG[105] = 0x00000000;
+	DRAM_REG[106] = 0x00000000;
+	DRAM_REG[107] = 0x00000000;
+	DRAM_REG[108] = 0x00000000;
+	DRAM_REG[109] = 0x00000000;
+	DRAM_REG[110] = 0x00000000;
+	DRAM_REG[111] = 0x00000000;
+	DRAM_REG[112] = 0x00000000;
+	DRAM_REG[113] = 0x00000000;
+	DRAM_REG[114] = 0x00000000;
+	DRAM_REG[115] = 0x00000000;
+	DRAM_REG[116] = 0x00000000;
+	DRAM_REG[117] = 0x00000000;
+	DRAM_REG[118] = 0x00000000;
+	DRAM_REG[119] = 0x00000000;
+	DRAM_REG[120] = 0x00000000;
+	DRAM_REG[121] = 0x00000000;
+	DRAM_REG[122] = 0x00000000;
+	DRAM_REG[123] = 0x00000000;
+	DRAM_REG[124] = 0x00000000;
+	DRAM_REG[125] = 0x00000000;
+	DRAM_REG[126] = 0x00000000;
+	DRAM_REG[127] = 0x00000000;
+	DRAM_REG[128] = 0x00000000;
+	DRAM_REG[129] = 0x00000000;
+	DRAM_REG[130] = 0x00000000;
+	DRAM_REG[131] = 0x00000000;
+	DRAM_REG[132] = 0x00000000;
+	DRAM_REG[133] = 0x00000000;
+	DRAM_REG[134] = 0x00000000;
+	DRAM_REG[135] = 0x00000000;
+	DRAM_REG[136] = 0x00000000;
+	DRAM_REG[137] = 0x00000000;
+	DRAM_REG[138] = 0x00000000;
+	DRAM_REG[139] = 0x00000000;
+	DRAM_REG[140] = 0x00000000;
+	DRAM_REG[141] = 0x00000000;
+	DRAM_REG[142] = 0x00000000;
+	DRAM_REG[143] = 0x00000000;
+	DRAM_REG[144] = 0x00000000;
+	DRAM_REG[145] = 0x00000000;
+	DRAM_REG[146] = 0x00000000;
+	DRAM_REG[147] = 0x00000000;
+	DRAM_REG[148] = 0x00000000;
+	DRAM_REG[149] = 0x00000000;
+	DRAM_REG[150] = 0x00000000;
+	DRAM_REG[151] = 0x00000000;
+	DRAM_REG[152] = 0x00000000;
+	DRAM_REG[153] = 0x00000000;
+	DRAM_REG[154] = 0x00000000;
+	DRAM_REG[155] = 0x00000000;
+	DRAM_REG[156] = 0x00000000;
+	DRAM_REG[157] = 0x00000000;
+	DRAM_REG[158] = 0x00000000;
+	DRAM_REG[159] = 0x00000000;
+	DRAM_REG[160] = 0x00000000;
+	DRAM_REG[161] = 0x00000000;
+	DRAM_REG[162] = 0x00000000;
+	DRAM_REG[163] = 0x00010301;
+	DRAM_REG[164] = 0x00000002;
+	DRAM_REG[165] = 0x00000000;
+	DRAM_REG[166] = 0x00000000;
+	DRAM_REG[167] = 0x00000000;
+	DRAM_REG[168] = 0x00000000;
+	DRAM_REG[169] = 0x00000000;
+	DRAM_REG[170] = 0x00000000;
+	DRAM_REG[171] = 0x01010000;
+	DRAM_REG[172] = 0x01000100;
+	DRAM_REG[173] = 0x03030000;
+	DRAM_REG[174] = 0x00020303;
+	DRAM_REG[175] = 0x01010202;
+	DRAM_REG[176] = 0x00000000;
+	DRAM_REG[177] = 0x01030101;
+	DRAM_REG[178] = 0x21002101;
+	DRAM_REG[179] = 0x00030500;
+	DRAM_REG[180] = 0x03050305;
+	DRAM_REG[181] = 0x00320032;
+	DRAM_REG[182] = 0x00320032;
+	DRAM_REG[183] = 0x00000000;
+	DRAM_REG[184] = 0x00000000;
+	DRAM_REG[185] = 0x00000000;
+	DRAM_REG[186] = 0x00000000;
+	DRAM_REG[187] = 0x00000000;
+	DRAM_REG[188] = 0x00000000;
+	DRAM_REG[189] = 0xffffffff;
+}
+
+
diff --git a/arch/arm/mach-mx28/emi_settings.h b/arch/arm/mach-mx28/emi_settings.h
index 745bf5df352b..d22261fc3522 100644
--- a/arch/arm/mach-mx28/emi_settings.h
+++ b/arch/arm/mach-mx28/emi_settings.h
@@ -28,9 +28,12 @@
 
 #ifndef __ASSEMBLER__
 void mxs_ram_freq_scale_end();
-void DDR2EmiController_EDE1116_133MHz();
-void DDR2EmiController_EDE1116_166MHz();
-void DDR2EmiController_EDE1116_200MHz();
+void DDR2EmiController_EDE1116_133MHz(void);
+void DDR2EmiController_EDE1116_166MHz(void);
+void DDR2EmiController_EDE1116_200MHz(void);
+void mDDREmiController_24MHz(void);
+void mDDREmiController_133MHz(void);
+void mDDREmiController_200MHz(void);
 unsigned int *get_current_emidata();
 #endif