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Diffstat (limited to 'arch/arm/mach-mx5/cpu_op-mx50.c')
-rwxr-xr-xarch/arm/mach-mx5/cpu_op-mx50.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/cpu_op-mx50.c b/arch/arm/mach-mx5/cpu_op-mx50.c
new file mode 100755
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+++ b/arch/arm/mach-mx5/cpu_op-mx50.c
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+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/types.h>
+#include <mach/hardware.h>
+#include <linux/kernel.h>
+#include <mach/mxc_dvfs.h>
+
+static int num_cpu_op;
+
+extern struct cpu_op *(*get_cpu_op)(int *op);
+extern struct dvfs_op *(*get_dvfs_core_op)(int *wp);
+
+/* working point(wp): 0 - 800MHz; 1 - 400MHz, 2 - 160MHz; */
+static struct cpu_op mx50_cpu_op[] = {
+ {
+ .pll_rate = 800000000,
+ .cpu_rate = 800000000,
+ .pdf = 0,
+ .mfi = 8,
+ .mfd = 2,
+ .mfn = 1,
+ .cpu_podf = 0,
+ .cpu_voltage = 1050000,},
+ {
+ .pll_rate = 800000000,
+ .cpu_rate = 400000000,
+ .cpu_podf = 1,
+ .cpu_voltage = 1050000,},
+ {
+ .pll_rate = 800000000,
+ .cpu_rate = 160000000,
+ .cpu_podf = 4,
+ .cpu_voltage = 850000,},
+};
+
+static struct dvfs_op dvfs_core_setpoint[] = {
+ {33, 13, 33, 10, 10, 0x08}, /* 800MHz*/
+ {28, 8, 33, 10, 10, 0x08}, /* 400MHz */
+ {20, 0, 33, 20, 10, 0x08}, /* 160MHz*/
+ {28, 8, 33, 20, 30, 0x08}, /*160MHz, AHB 133MHz, LPAPM mode*/
+ {29, 0, 33, 20, 10, 0x08},}; /* 160MHz, AHB 24MHz */
+
+struct cpu_op *mx50_get_cpu_op(int *op)
+{
+ *op = ARRAY_SIZE(mx50_cpu_op);
+ return mx50_cpu_op;
+}
+
+static struct dvfs_op *mx50_get_dvfs_core_table(int *wp)
+{
+ *wp = ARRAY_SIZE(dvfs_core_setpoint);
+ return dvfs_core_setpoint;
+}
+
+void mx50_cpu_op_init(void)
+{
+ get_cpu_op = mx50_get_cpu_op;
+ num_cpu_op = ARRAY_SIZE(mx50_cpu_op);
+ get_dvfs_core_op = mx50_get_dvfs_core_table;
+}