Patch to Add Dothan frequency tables for speedstep.
Does this conflict with other Dothan handling?
patch location:
http://www.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu-dapper.git;a=commitdiff;h=1db7baafb2d8f9d1356802bb112826bd866221b4
---
arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c | 89 ++++++++++++++++++++++
1 file changed, 89 insertions(+)
--- linux-2617-g21.orig/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ linux-2617-g21/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -196,6 +196,82 @@ static struct cpufreq_frequency_table ba
OP(1700, 1484),
{ .frequency = CPUFREQ_TABLE_END }
};
+
+#undef OP
+
+/* Dothan processor datasheet 30218903.pdf defines 4 voltages for each
+ frequency (VID#A through VID#D) - this macro allows us to define all
+ of these but we only use the VID#C voltages at compile time - this may
+ need some work if we want to select the voltage profile at runtime. */
+
+#define OP(mhz, mva, mvb, mvc, mvd) \
+ { \
+ .frequency = (mhz) * 1000, \
+ .index = (((mhz)/100) << 8) | ((mvc - 700) / 16) \
+ }
+
+/* Intel Pentium M processor 715 / 1.50GHz (Dothan) */
+static struct cpufreq_frequency_table dothan_1500[] =
+{
+ OP( 600, 988, 988, 988, 988),
+ OP( 800, 1068, 1068, 1068, 1052),
+ OP(1000, 1148, 1148, 1132, 1116),
+ OP(1200, 1228, 1212, 1212, 1180),
+ OP(1500, 1340, 1324, 1308, 1276),
+ { .frequency = CPUFREQ_TABLE_END }
+};
+
+/* Intel Pentium M processor 725 / 1.60GHz (Dothan) */
+static struct cpufreq_frequency_table dothan_1600[] =
+{
+ OP( 600, 988, 988, 988, 988),
+ OP( 800, 1068, 1068, 1052, 1052),
+ OP(1000, 1132, 1132, 1116, 1116),
+ OP(1200, 1212, 1196, 1180, 1164),
+ OP(1400, 1276, 1260, 1244, 1228),
+ OP(1600, 1340, 1324, 1308, 1276),
+ { .frequency = CPUFREQ_TABLE_END }
+};
+
+/* Intel Pentium M processor 735 / 1.70GHz (Dothan) */
+static struct cpufreq_frequency_table dothan_1700[] =
+{
+ OP( 600, 988, 988, 988, 988),
+ OP( 800, 1052, 1052, 1052, 1052),
+ OP(1000, 1116, 1116, 1116, 1100),
+ OP(1200, 1180, 1180, 1164, 1148),
+ OP(1400, 1244, 1244, 1228, 1212),
+ OP(1700, 1340, 1324, 1308, 1276),
+ { .frequency = CPUFREQ_TABLE_END }
+};
+
+/* Intel Pentium M processor 745 / 1.80GHz (Dothan) */
+static struct cpufreq_frequency_table dothan_1800[] =
+{
+ OP( 600, 988, 988, 988, 988),
+ OP( 800, 1052, 1052, 1052, 1036),
+ OP(1000, 1116, 1100, 1100, 1084),
+ OP(1200, 1164, 1164, 1148, 1132),
+ OP(1400, 1228, 1212, 1212, 1180),
+ OP(1600, 1292, 1276, 1260, 1228),
+ OP(1800, 1340, 1324, 1308, 1276),
+ { .frequency = CPUFREQ_TABLE_END }
+};
+
+/* Intel Pentium M processor 755 / 2.00GHz (Dothan) */
+static struct cpufreq_frequency_table dothan_2000[] =
+{
+ OP( 600, 988, 988, 988, 988),
+ OP( 800, 1052, 1036, 1036, 1036),
+ OP(1000, 1100, 1084, 1084, 1084),
+ OP(1200, 1148, 1132, 1132, 1116),
+ OP(1400, 1196, 1180, 1180, 1164),
+ OP(1600, 1244, 1228, 1228, 1196),
+ OP(1800, 1292, 1276, 1276, 1244),
+ OP(2000, 1340, 1324, 1308, 1276),
+ { .frequency = CPUFREQ_TABLE_END }
+};
+
#undef OP
#define _BANIAS(cpuid, max, name) \
@@ -206,6 +282,13 @@ static struct cpufreq_frequency_table ba
}
#define BANIAS(max) _BANIAS(&cpu_ids[CPU_BANIAS], max, #max)
+#define DOTHAN(cpuid, max, name) \
+{ .cpu_id = cpuid, \
+ .model_name = "Intel(R) Pentium(R) M processor " name "GHz", \
+ .max_freq = (max)*1000, \
+ .op_points = dothan_##max, \
+}
+
/* CPU models, their operating frequency range, and freq/voltage
operating points */
static struct cpu_model models[] =
@@ -219,6 +302,11 @@ static struct cpu_model models[] =
BANIAS(1500),
BANIAS(1600),
BANIAS(1700),
+ DOTHAN(&cpu_ids[CPU_DOTHAN_B0], 1500, "1.50"),
+ DOTHAN(&cpu_ids[CPU_DOTHAN_B0], 1600, "1.60"),
+ DOTHAN(&cpu_ids[CPU_DOTHAN_B0], 1700, "1.70"),
+ DOTHAN(&cpu_ids[CPU_DOTHAN_B0], 1800, "1.80"),
+ DOTHAN(&cpu_ids[CPU_DOTHAN_B0], 2000, "2.00"),
/* NULL model_name is a wildcard */
{ &cpu_ids[CPU_DOTHAN_A1], NULL, 0, NULL },
@@ -231,6 +319,7 @@ static struct cpu_model models[] =
};
#undef _BANIAS
#undef BANIAS
+#undef DOTHAN
static int centrino_cpu_init_table(struct cpufreq_policy *policy)
{
-
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