diff options
author | Tony Lindgren <tony@atomide.com> | 2006-06-26 19:16:17 -0400 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2006-06-26 19:16:17 -0400 |
commit | a7ca9d2b0199f79480800e18f643328bb43f521d (patch) | |
tree | 23e50178c0b55f1329f7c622f100c563a9e55070 /arch | |
parent | 4bbbc1adc2095c6504a556819dd8842135df300b (diff) |
ARM: OMAP: Update cpufreq support for 24xx
Update cpufreq support for 24xx
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/Kconfig | 2 | ||||
-rw-r--r-- | arch/arm/plat-omap/cpu-omap.c | 18 |
2 files changed, 14 insertions, 6 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 3d1a3fb7d5fc..30dede5a38b9 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig | |||
@@ -669,7 +669,7 @@ config XIP_PHYS_ADDR | |||
669 | 669 | ||
670 | endmenu | 670 | endmenu |
671 | 671 | ||
672 | if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1) | 672 | if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP) |
673 | 673 | ||
674 | menu "CPU Frequency scaling" | 674 | menu "CPU Frequency scaling" |
675 | 675 | ||
diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c index 98edc9fdd6d1..a0c71dca2373 100644 --- a/arch/arm/plat-omap/cpu-omap.c +++ b/arch/arm/plat-omap/cpu-omap.c | |||
@@ -25,6 +25,14 @@ | |||
25 | #include <asm/io.h> | 25 | #include <asm/io.h> |
26 | #include <asm/system.h> | 26 | #include <asm/system.h> |
27 | 27 | ||
28 | #define VERY_HI_RATE 900000000 | ||
29 | |||
30 | #ifdef CONFIG_ARCH_OMAP1 | ||
31 | #define MPU_CLK "mpu" | ||
32 | #else | ||
33 | #define MPU_CLK "virt_prcm_set" | ||
34 | #endif | ||
35 | |||
28 | /* TODO: Add support for SDRAM timing changes */ | 36 | /* TODO: Add support for SDRAM timing changes */ |
29 | 37 | ||
30 | int omap_verify_speed(struct cpufreq_policy *policy) | 38 | int omap_verify_speed(struct cpufreq_policy *policy) |
@@ -36,7 +44,7 @@ int omap_verify_speed(struct cpufreq_policy *policy) | |||
36 | 44 | ||
37 | cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, | 45 | cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, |
38 | policy->cpuinfo.max_freq); | 46 | policy->cpuinfo.max_freq); |
39 | mpu_clk = clk_get(NULL, "mpu"); | 47 | mpu_clk = clk_get(NULL, MPU_CLK); |
40 | if (IS_ERR(mpu_clk)) | 48 | if (IS_ERR(mpu_clk)) |
41 | return PTR_ERR(mpu_clk); | 49 | return PTR_ERR(mpu_clk); |
42 | policy->min = clk_round_rate(mpu_clk, policy->min * 1000) / 1000; | 50 | policy->min = clk_round_rate(mpu_clk, policy->min * 1000) / 1000; |
@@ -56,7 +64,7 @@ unsigned int omap_getspeed(unsigned int cpu) | |||
56 | if (cpu) | 64 | if (cpu) |
57 | return 0; | 65 | return 0; |
58 | 66 | ||
59 | mpu_clk = clk_get(NULL, "mpu"); | 67 | mpu_clk = clk_get(NULL, MPU_CLK); |
60 | if (IS_ERR(mpu_clk)) | 68 | if (IS_ERR(mpu_clk)) |
61 | return 0; | 69 | return 0; |
62 | rate = clk_get_rate(mpu_clk) / 1000; | 70 | rate = clk_get_rate(mpu_clk) / 1000; |
@@ -73,7 +81,7 @@ static int omap_target(struct cpufreq_policy *policy, | |||
73 | struct cpufreq_freqs freqs; | 81 | struct cpufreq_freqs freqs; |
74 | int ret = 0; | 82 | int ret = 0; |
75 | 83 | ||
76 | mpu_clk = clk_get(NULL, "mpu"); | 84 | mpu_clk = clk_get(NULL, MPU_CLK); |
77 | if (IS_ERR(mpu_clk)) | 85 | if (IS_ERR(mpu_clk)) |
78 | return PTR_ERR(mpu_clk); | 86 | return PTR_ERR(mpu_clk); |
79 | 87 | ||
@@ -93,7 +101,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy) | |||
93 | { | 101 | { |
94 | struct clk * mpu_clk; | 102 | struct clk * mpu_clk; |
95 | 103 | ||
96 | mpu_clk = clk_get(NULL, "mpu"); | 104 | mpu_clk = clk_get(NULL, MPU_CLK); |
97 | if (IS_ERR(mpu_clk)) | 105 | if (IS_ERR(mpu_clk)) |
98 | return PTR_ERR(mpu_clk); | 106 | return PTR_ERR(mpu_clk); |
99 | 107 | ||
@@ -102,7 +110,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy) | |||
102 | policy->cur = policy->min = policy->max = omap_getspeed(0); | 110 | policy->cur = policy->min = policy->max = omap_getspeed(0); |
103 | policy->governor = CPUFREQ_DEFAULT_GOVERNOR; | 111 | policy->governor = CPUFREQ_DEFAULT_GOVERNOR; |
104 | policy->cpuinfo.min_freq = clk_round_rate(mpu_clk, 0) / 1000; | 112 | policy->cpuinfo.min_freq = clk_round_rate(mpu_clk, 0) / 1000; |
105 | policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, 216000000) / 1000; | 113 | policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, VERY_HI_RATE) / 1000; |
106 | policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; | 114 | policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; |
107 | clk_put(mpu_clk); | 115 | clk_put(mpu_clk); |
108 | 116 | ||