[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
--- 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 @@
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);