From: Jongpill Lee <boyko.lee@xxxxxxxxxxx>
This patch removes code for bus on cpufreq because the code
for bus frequency changing moves to busfreq driver.
So code about bus on cpufreq is not necessary.
Signed-off-by: Jongpill Lee <boyko.lee@xxxxxxxxxxx>
Signed-off-by: SangWook Ju <sw.ju@xxxxxxxxxxx>
Signed-off-by: Jaecheol Lee <jc.lee@xxxxxxxxxxx>
Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
---
drivers/cpufreq/exynos4210-cpufreq.c | 174
+---------------------------------
1 files changed, 1 insertions(+), 173 deletions(-)
diff --git a/drivers/cpufreq/exynos4210-cpufreq.c
b/drivers/cpufreq/exynos4210-cpufreq.c
index b7c3a84..6ff3993 100644
--- a/drivers/cpufreq/exynos4210-cpufreq.c
+++ b/drivers/cpufreq/exynos4210-cpufreq.c
@@ -31,16 +31,8 @@ static struct clk *mout_mpll;
static struct clk *mout_apll;
static struct regulator *arm_regulator;
-static struct regulator *int_regulator;
static struct cpufreq_freqs freqs;
-static unsigned int memtype;
-
-enum exynos4_memory_type {
- DDR2 = 4,
- LPDDR2,
- DDR3,
-};
enum cpufreq_level_index {
L0, L1, L2, L3, CPUFREQ_LEVEL_END,
@@ -93,87 +85,24 @@ static unsigned int clkdiv_cpu1[CPUFREQ_LEVEL_END][2] =
{
{ 3, 0 },
};
-static unsigned int clkdiv_dmc0[CPUFREQ_LEVEL_END][8] = {
- /*
- * Clock divider value for following
- * { DIVACP, DIVACP_PCLK, DIVDPHY, DIVDMC, DIVDMCD
- * DIVDMCP, DIVCOPY2, DIVCORE_TIMERS }
- */
-
- /* DMC L0: 400MHz */
- { 3, 1, 1, 1, 1, 1, 3, 1 },
-
- /* DMC L1: 400MHz */
- { 3, 1, 1, 1, 1, 1, 3, 1 },
-
- /* DMC L2: 266.7MHz */
- { 7, 1, 1, 2, 1, 1, 3, 1 },
-
- /* DMC L3: 200MHz */
- { 7, 1, 1, 3, 1, 1, 3, 1 },
-};
-
-static unsigned int clkdiv_top[CPUFREQ_LEVEL_END][5] = {
- /*
- * Clock divider value for following
- * { DIVACLK200, DIVACLK100, DIVACLK160, DIVACLK133, DIVONENAND }
- */
-
- /* ACLK200 L0: 200MHz */
- { 3, 7, 4, 5, 1 },
-
- /* ACLK200 L1: 200MHz */
- { 3, 7, 4, 5, 1 },
-
- /* ACLK200 L2: 160MHz */
- { 4, 7, 5, 7, 1 },
-
- /* ACLK200 L3: 133.3MHz */
- { 5, 7, 7, 7, 1 },
-};
-
-static unsigned int clkdiv_lr_bus[CPUFREQ_LEVEL_END][2] = {
- /*
- * Clock divider value for following
- * { DIVGDL/R, DIVGPL/R }
- */
-
- /* ACLK_GDL/R L0: 200MHz */
- { 3, 1 },
-
- /* ACLK_GDL/R L1: 200MHz */
- { 3, 1 },
-
- /* ACLK_GDL/R L2: 160MHz */
- { 4, 1 },
-
- /* ACLK_GDL/R L3: 133.3MHz */
- { 5, 1 },
-};
-
struct cpufreq_voltage_table {
unsigned int index; /* any */
unsigned int arm_volt; /* uV */
- unsigned int int_volt;
};
static struct cpufreq_voltage_table exynos4_volt_table[CPUFREQ_LEVEL_END] =
{
{
.index = L0,
.arm_volt = 1200000,
- .int_volt = 1100000,
}, {
.index = L1,
.arm_volt = 1100000,
- .int_volt = 1100000,
}, {
.index = L2,
.arm_volt = 1000000,
- .int_volt = 1000000,
}, {
.index = L3,
.arm_volt = 900000,
- .int_volt = 1000000,
},
};
@@ -242,80 +171,6 @@ static void exynos4_set_clkdiv(unsigned int div_index)
do {
tmp = __raw_readl(S5P_CLKDIV_STATCPU1);
} while (tmp & 0x11);
-
- /* Change Divider - DMC0 */
-
- tmp = __raw_readl(S5P_CLKDIV_DMC0);
-
- tmp &= ~(S5P_CLKDIV_DMC0_ACP_MASK | S5P_CLKDIV_DMC0_ACPPCLK_MASK |
- S5P_CLKDIV_DMC0_DPHY_MASK | S5P_CLKDIV_DMC0_DMC_MASK |
- S5P_CLKDIV_DMC0_DMCD_MASK | S5P_CLKDIV_DMC0_DMCP_MASK |
- S5P_CLKDIV_DMC0_COPY2_MASK | S5P_CLKDIV_DMC0_CORETI_MASK);
-
- tmp |= ((clkdiv_dmc0[div_index][0] << S5P_CLKDIV_DMC0_ACP_SHIFT) |
- (clkdiv_dmc0[div_index][1] << S5P_CLKDIV_DMC0_ACPPCLK_SHIFT)
|
- (clkdiv_dmc0[div_index][2] << S5P_CLKDIV_DMC0_DPHY_SHIFT) |
- (clkdiv_dmc0[div_index][3] << S5P_CLKDIV_DMC0_DMC_SHIFT) |
- (clkdiv_dmc0[div_index][4] << S5P_CLKDIV_DMC0_DMCD_SHIFT) |
- (clkdiv_dmc0[div_index][5] << S5P_CLKDIV_DMC0_DMCP_SHIFT) |
- (clkdiv_dmc0[div_index][6] << S5P_CLKDIV_DMC0_COPY2_SHIFT) |
- (clkdiv_dmc0[div_index][7] <<
S5P_CLKDIV_DMC0_CORETI_SHIFT));
-
- __raw_writel(tmp, S5P_CLKDIV_DMC0);
-
- do {
- tmp = __raw_readl(S5P_CLKDIV_STAT_DMC0);
- } while (tmp & 0x11111111);
-
- /* Change Divider - TOP */
-
- tmp = __raw_readl(S5P_CLKDIV_TOP);
-
- tmp &= ~(S5P_CLKDIV_TOP_ACLK200_MASK | S5P_CLKDIV_TOP_ACLK100_MASK |
- S5P_CLKDIV_TOP_ACLK160_MASK | S5P_CLKDIV_TOP_ACLK133_MASK |
- S5P_CLKDIV_TOP_ONENAND_MASK);
-
- tmp |= ((clkdiv_top[div_index][0] << S5P_CLKDIV_TOP_ACLK200_SHIFT) |
- (clkdiv_top[div_index][1] << S5P_CLKDIV_TOP_ACLK100_SHIFT) |
- (clkdiv_top[div_index][2] << S5P_CLKDIV_TOP_ACLK160_SHIFT) |
- (clkdiv_top[div_index][3] << S5P_CLKDIV_TOP_ACLK133_SHIFT) |
- (clkdiv_top[div_index][4] << S5P_CLKDIV_TOP_ONENAND_SHIFT));
-
- __raw_writel(tmp, S5P_CLKDIV_TOP);
-
- do {
- tmp = __raw_readl(S5P_CLKDIV_STAT_TOP);
- } while (tmp & 0x11111);
-
- /* Change Divider - LEFTBUS */
-
- tmp = __raw_readl(S5P_CLKDIV_LEFTBUS);
-
- tmp &= ~(S5P_CLKDIV_BUS_GDLR_MASK | S5P_CLKDIV_BUS_GPLR_MASK);
-
- tmp |= ((clkdiv_lr_bus[div_index][0] << S5P_CLKDIV_BUS_GDLR_SHIFT) |
- (clkdiv_lr_bus[div_index][1] << S5P_CLKDIV_BUS_GPLR_SHIFT));
-
- __raw_writel(tmp, S5P_CLKDIV_LEFTBUS);
-
- do {
- tmp = __raw_readl(S5P_CLKDIV_STAT_LEFTBUS);
- } while (tmp & 0x11);
-
- /* Change Divider - RIGHTBUS */
-
- tmp = __raw_readl(S5P_CLKDIV_RIGHTBUS);
-
- tmp &= ~(S5P_CLKDIV_BUS_GDLR_MASK | S5P_CLKDIV_BUS_GPLR_MASK);
-
- tmp |= ((clkdiv_lr_bus[div_index][0] << S5P_CLKDIV_BUS_GDLR_SHIFT) |
- (clkdiv_lr_bus[div_index][1] << S5P_CLKDIV_BUS_GPLR_SHIFT));
-
- __raw_writel(tmp, S5P_CLKDIV_RIGHTBUS);
-
- do {
- tmp = __raw_readl(S5P_CLKDIV_STAT_RIGHTBUS);
- } while (tmp & 0x11);
}
static void exynos4_set_apll(unsigned int index)
@@ -404,7 +259,7 @@ static int exynos4_target(struct cpufreq_policy *policy,
unsigned int relation)
{
unsigned int index, old_index;
- unsigned int arm_volt, int_volt;
+ unsigned int arm_volt;
freqs.old = exynos4_getspeed(policy->cpu);
@@ -424,7 +279,6 @@ static int exynos4_target(struct cpufreq_policy *policy,
/* get the voltage value */
arm_volt = exynos4_volt_table[index].arm_volt;
- int_volt = exynos4_volt_table[index].int_volt;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
@@ -432,7 +286,6 @@ static int exynos4_target(struct cpufreq_policy *policy,
if (freqs.new > freqs.old) {
/* Voltage up */
regulator_set_voltage(arm_regulator, arm_volt, arm_volt);
- regulator_set_voltage(int_regulator, int_volt, int_volt);
}
/* Clock Configuration Procedure */
@@ -442,7 +295,6 @@ static int exynos4_target(struct cpufreq_policy *policy,
if (freqs.new < freqs.old) {
/* Voltage down */
regulator_set_voltage(arm_regulator, arm_volt, arm_volt);
- regulator_set_voltage(int_regulator, int_volt, int_volt);
}
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
@@ -519,27 +371,6 @@ static int __init exynos4_cpufreq_init(void)
goto out;
}
- int_regulator = regulator_get(NULL, "vdd_int");
- if (IS_ERR(int_regulator)) {
- printk(KERN_ERR "failed to get resource %s\n", "vdd_int");
- goto out;
- }
-
- /*
- * Check DRAM type.
- * Because DVFS level is different according to DRAM type.
- */
- memtype = __raw_readl(S5P_VA_DMC0 + S5P_DMC0_MEMCON_OFFSET);
- memtype = (memtype >> S5P_DMC0_MEMTYPE_SHIFT);
- memtype &= S5P_DMC0_MEMTYPE_MASK;
-
- if ((memtype < DDR2) && (memtype > DDR3)) {
- printk(KERN_ERR "%s: wrong memtype= 0x%x\n", __func__,
memtype);
- goto out;
- } else {
- printk(KERN_DEBUG "%s: memtype= 0x%x\n", __func__, memtype);
- }
-
return cpufreq_register_driver(&exynos4_driver);
out:
@@ -558,9 +389,6 @@ out:
if (!IS_ERR(arm_regulator))
regulator_put(arm_regulator);
- if (!IS_ERR(int_regulator))
- regulator_put(int_regulator);
-
printk(KERN_ERR "%s: failed initialization\n", __func__);
return -EINVAL;
--
1.7.1
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