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