[CPUFREQ] db8500: support all frequencies

This adds support for the 200 MHz frequency mode of the
DB8500 SoC, and prints the available frequencies at init
time.

Cc: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dave Jones <davej@redhat.com>

1 files changed, 16 insertions, 8 deletions

diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/db8500-cpufreq.c
index b87236add6be..eedfc99c75f6 100644
--- a/drivers/cpufreq/db8500-cpufreq.c
+++ b/drivers/cpufreq/db8500-cpufreq.c
@@ -18,24 +18,29 @@
 static struct cpufreq_frequency_table freq_table[] = {
         [0] = {
                 .index = 0,
-                .frequency = 300000,
+                .frequency = 200000,
         },
         [1] = {
                 .index = 1,
-                .frequency = 600000,
+                .frequency = 300000,
         },
         [2] = {
-                /* Used for MAX_OPP, if available */
                 .index = 2,
-                .frequency = CPUFREQ_TABLE_END,
+                .frequency = 600000,
         },
         [3] = {
+                /* Used for MAX_OPP, if available */
                 .index = 3,
                 .frequency = CPUFREQ_TABLE_END,
         },
+        [4] = {
+                .index = 4,
+                .frequency = CPUFREQ_TABLE_END,
+        },
 };
 
 static enum arm_opp idx2opp[] = {
+        ARM_EXTCLK,
         ARM_50_OPP,
         ARM_100_OPP,
         ARM_MAX_OPP
@@ -108,12 +113,15 @@ static int __cpuinit db8500_cpufreq_init(struct cpufreq_policy *policy)
 
         BUILD_BUG_ON(ARRAY_SIZE(idx2opp) + 1 != ARRAY_SIZE(freq_table));
 
-        if (cpu_is_u8500v2() && !prcmu_is_u8400()) {
-                freq_table[0].frequency = 400000;
-                freq_table[1].frequency = 800000;
+        if (!prcmu_is_u8400()) {
+                freq_table[1].frequency = 400000;
+                freq_table[2].frequency = 800000;
                 if (prcmu_has_arm_maxopp())
-                        freq_table[2].frequency = 1000000;
+                        freq_table[3].frequency = 1000000;
         }
+        pr_info("db8500-cpufreq : Available frequencies:\n");
+        while (freq_table[i].frequency != CPUFREQ_TABLE_END)
+                pr_info("  %d Mhz\n", freq_table[i++].frequency/1000);
 
         /* get policy fields based on the table */
         res = cpufreq_frequency_table_cpuinfo(policy, freq_table);