ENGR00176136- MX6: Added support for 1.2GHz ARM Frequency

Added the new 1.2GHz working point.
Currently 'arm_freq=1200" should be added to commandline
for the core to run at 1.2GHz. Also ensure that the appropriate
HW board mods have been done to set VDDARM_IN at 1.425V.

Signed-off-by: Ranjani Vaidyanathan <ra5478@freescale.com>

3 files changed, 54 insertions, 8 deletions

diff --git a/arch/arm/mach-mx6/cpu.c b/arch/arm/mach-mx6/cpu.c
index 279bed8e8c71..ddb4e0cf9976 100644
--- a/arch/arm/mach-mx6/cpu.c
+++ b/arch/arm/mach-mx6/cpu.c
@@ -153,7 +153,10 @@ early_param("enable_wait_mode", enable_wait);
 
 static int __init arm_core_max(char *p)
 {
-	if (memcmp(p, "1000", 4) == 0) {
+	if (memcmp(p, "1200", 4) == 0) {
+		arm_max_freq = CPU_AT_1_2GHz;
+		p += 4;
+	} else if (memcmp(p, "1000", 4) == 0) {
 		arm_max_freq = CPU_AT_1GHz;
 		p += 4;
 	} else if (memcmp(p, "800", 3) == 0) {
diff --git a/arch/arm/mach-mx6/cpu_op-mx6.c b/arch/arm/mach-mx6/cpu_op-mx6.c
index f6e5af115226..6f030102c821 100644
--- a/arch/arm/mach-mx6/cpu_op-mx6.c
+++ b/arch/arm/mach-mx6/cpu_op-mx6.c
@@ -23,7 +23,35 @@ extern void (*set_num_cpu_op)(int num);
 extern u32 arm_max_freq;
 static int num_cpu_op;
 
-/* working point(wp): 0 - 1GHzMHz; 1 - 800MHz, 2 - 624MHz 3 - 400MHz, 4  - 200MHz */
+/* working point(wp): 0 - 1.2GHz; 1 - 800MHz, 2 - 624MHz 3 - 400MHz, 4  - 200MHz */
+static struct cpu_op mx6_cpu_op_1_2G[] = {
+	{
+	 .pll_rate = 1200000000,
+	 .cpu_rate = 1200000000,
+	 .cpu_podf = 0,
+	 .cpu_voltage = 1275000,},
+	{
+	 .pll_rate = 792000000,
+	 .cpu_rate = 792000000,
+	 .cpu_podf = 0,
+	 .cpu_voltage = 1100000,},
+	{
+	 .pll_rate = 624000000,
+	 .cpu_rate = 624000000,
+	 .cpu_voltage = 1100000,},
+	 {
+	  .pll_rate = 792000000,
+	  .cpu_rate = 396000000,
+	  .cpu_podf = 1,
+	  .cpu_voltage = 950000,},
+	{
+	 .pll_rate = 792000000,
+	 .cpu_rate = 198000000,
+	 .cpu_podf = 3,
+	 .cpu_voltage = 850000,},
+};
+
+/* working point(wp): 0 - 1GHz; 1 - 800MHz, 2 - 624MHz 3 - 400MHz, 4  - 200MHz */
 static struct cpu_op mx6_cpu_op_1G[] = {
 	{
 	 .pll_rate = 996000000,
@@ -111,10 +139,18 @@ static struct cpu_op mx6dl_cpu_op[] = {
 	 .cpu_voltage = 1000000,},
 };
 
+static struct dvfs_op dvfs_core_setpoint_1_2G[] = {
+	{33, 14, 33, 10, 128, 0x10},     /* 1.2GHz*/
+	{30, 12, 33, 100, 200, 0x10},   /* 800MHz */
+	{28, 12, 33, 100, 200, 0x10},   /* 624MHz */
+	{26, 8, 33, 100, 200, 0x10},   /* 400MHz */
+	{20, 0, 33, 20, 10, 0x10} };   /* 200MHz*/
+
 static struct dvfs_op dvfs_core_setpoint_1G[] = {
 	{33, 14, 33, 10, 128, 0x10}, /* 1GHz*/
 	{30, 12, 33, 100, 200, 0x10},   /* 800MHz */
-	{28, 8, 33, 100, 200, 0x10},   /* 400MHz */
+	{28, 12, 33, 100, 200, 0x10},   /* 624MHz */
+	{26, 8, 33, 100, 200, 0x10},   /* 400MHz */
 	{20, 0, 33, 20, 10, 0x10} };   /* 200MHz*/
 
 static struct dvfs_op dvfs_core_setpoint[] = {
@@ -124,7 +160,10 @@ static struct dvfs_op dvfs_core_setpoint[] = {
 
 static struct dvfs_op *mx6_get_dvfs_core_table(int *wp)
 {
-	if (arm_max_freq == CPU_AT_1GHz) {
+	if (arm_max_freq == CPU_AT_1_2GHz) {
+		*wp = ARRAY_SIZE(dvfs_core_setpoint_1_2G);
+		return dvfs_core_setpoint_1_2G;
+	} else if (arm_max_freq == CPU_AT_1GHz) {
 		*wp = ARRAY_SIZE(dvfs_core_setpoint_1G);
 		return dvfs_core_setpoint_1G;
 	} else {
@@ -144,7 +183,10 @@ struct cpu_op *mx6_get_cpu_op(int *op)
 			return mx6dl_cpu_op;
 		}
 	} else {
-		if (arm_max_freq == CPU_AT_1GHz) {
+		if (arm_max_freq == CPU_AT_1_2GHz) {
+			*op =  num_cpu_op = ARRAY_SIZE(mx6_cpu_op_1_2G);
+			return mx6_cpu_op_1_2G;
+		} else if (arm_max_freq == CPU_AT_1GHz) {
 			*op =  num_cpu_op = ARRAY_SIZE(mx6_cpu_op_1G);
 			return mx6_cpu_op_1G;
 		} else {
diff --git a/arch/arm/mach-mx6/cpu_op-mx6.h b/arch/arm/mach-mx6/cpu_op-mx6.h
index 77e8222c5d38..b5ca58ecb3b3 100644
--- a/arch/arm/mach-mx6/cpu_op-mx6.h
+++ b/arch/arm/mach-mx6/cpu_op-mx6.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2010-2012 Freescale Semiconductor, Inc. All Rights Reserved.
  */
 
 /*
@@ -11,7 +11,8 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
-#define CPU_AT_800MHz	0
-#define CPU_AT_1GHz		1
+#define CPU_AT_800MHz		0
+#define CPU_AT_1GHz			1
+#define CPU_AT_1_2GHz		2
 
 void mx6_cpu_op_init(void);