ARM: OMAP: Update cpufreq support for 24xx
Update cpufreq support for 24xx Signed-off-by: Tony Lindgren <tony@atomide.com>
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4bbbc1adc2
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@ -669,7 +669,7 @@ config XIP_PHYS_ADDR
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endmenu
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endmenu
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if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1)
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if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP)
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menu "CPU Frequency scaling"
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menu "CPU Frequency scaling"
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@ -25,6 +25,14 @@
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#include <asm/io.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/system.h>
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#define VERY_HI_RATE 900000000
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#ifdef CONFIG_ARCH_OMAP1
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#define MPU_CLK "mpu"
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#else
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#define MPU_CLK "virt_prcm_set"
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#endif
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/* TODO: Add support for SDRAM timing changes */
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/* TODO: Add support for SDRAM timing changes */
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int omap_verify_speed(struct cpufreq_policy *policy)
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int omap_verify_speed(struct cpufreq_policy *policy)
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@ -36,7 +44,7 @@ int omap_verify_speed(struct cpufreq_policy *policy)
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cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
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cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
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policy->cpuinfo.max_freq);
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policy->cpuinfo.max_freq);
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mpu_clk = clk_get(NULL, "mpu");
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mpu_clk = clk_get(NULL, MPU_CLK);
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if (IS_ERR(mpu_clk))
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if (IS_ERR(mpu_clk))
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return PTR_ERR(mpu_clk);
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return PTR_ERR(mpu_clk);
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policy->min = clk_round_rate(mpu_clk, policy->min * 1000) / 1000;
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policy->min = clk_round_rate(mpu_clk, policy->min * 1000) / 1000;
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@ -56,7 +64,7 @@ unsigned int omap_getspeed(unsigned int cpu)
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if (cpu)
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if (cpu)
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return 0;
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return 0;
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mpu_clk = clk_get(NULL, "mpu");
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mpu_clk = clk_get(NULL, MPU_CLK);
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if (IS_ERR(mpu_clk))
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if (IS_ERR(mpu_clk))
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return 0;
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return 0;
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rate = clk_get_rate(mpu_clk) / 1000;
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rate = clk_get_rate(mpu_clk) / 1000;
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@ -73,7 +81,7 @@ static int omap_target(struct cpufreq_policy *policy,
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struct cpufreq_freqs freqs;
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struct cpufreq_freqs freqs;
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int ret = 0;
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int ret = 0;
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mpu_clk = clk_get(NULL, "mpu");
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mpu_clk = clk_get(NULL, MPU_CLK);
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if (IS_ERR(mpu_clk))
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if (IS_ERR(mpu_clk))
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return PTR_ERR(mpu_clk);
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return PTR_ERR(mpu_clk);
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@ -93,7 +101,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy)
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{
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{
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struct clk * mpu_clk;
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struct clk * mpu_clk;
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mpu_clk = clk_get(NULL, "mpu");
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mpu_clk = clk_get(NULL, MPU_CLK);
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if (IS_ERR(mpu_clk))
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if (IS_ERR(mpu_clk))
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return PTR_ERR(mpu_clk);
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return PTR_ERR(mpu_clk);
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@ -102,7 +110,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy)
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policy->cur = policy->min = policy->max = omap_getspeed(0);
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policy->cur = policy->min = policy->max = omap_getspeed(0);
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policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
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policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
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policy->cpuinfo.min_freq = clk_round_rate(mpu_clk, 0) / 1000;
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policy->cpuinfo.min_freq = clk_round_rate(mpu_clk, 0) / 1000;
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policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, 216000000) / 1000;
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policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, VERY_HI_RATE) / 1000;
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policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
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policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
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clk_put(mpu_clk);
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clk_put(mpu_clk);
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