[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>

diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/db8500-cpufreq.c
index b87236a..eedfc99 100644 (file)
--- 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);