msm: acpuclock-8960: Migrate 8960 support to use acpuclock-krait
Leverage the optimized code of the new acpuclock-krait driver for
8960. The newer driver is simpler and more efficient than the existing
acpuclock-8960 code, but drops support for Krait v1 processors (which
were not commercialized anyway).
Change-Id: I5cc875446f02a9f169c9997b716e0464a3a20ee1
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
diff --git a/arch/arm/mach-msm/acpuclock-8960.c b/arch/arm/mach-msm/acpuclock-8960.c
index c4603b8..72edc54 100644
--- a/arch/arm/mach-msm/acpuclock-8960.c
+++ b/arch/arm/mach-msm/acpuclock-8960.c
@@ -1,4 +1,5 @@
-/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
+/*
+ * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -10,238 +11,68 @@
* GNU General Public License for more details.
*/
-#define pr_fmt(fmt) "%s: " fmt, __func__
-
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/cpufreq.h>
-#include <linux/cpu.h>
-#include <linux/regulator/consumer.h>
#include <linux/platform_device.h>
-
-#include <asm/mach-types.h>
-#include <asm/cpu.h>
-
-#include <mach/board.h>
-#include <mach/msm_iomap.h>
#include <mach/rpm-regulator.h>
-#include <mach/msm_bus.h>
#include <mach/msm_bus_board.h>
-#include <mach/socinfo.h>
-#include <mach/msm-krait-l2-accessors.h>
-#include <mach/rpm-regulator.h>
+#include <mach/msm_bus.h>
#include "acpuclock.h"
-#include "pm.h"
+#include "acpuclock-krait.h"
-/*
- * Source IDs.
- * These must be negative to not overlap with the source IDs
- * used by the 8x60 local clock driver.
- */
-#define PLL_8 0
-#define HFPLL -1
-#define QSB -2
-
-/* Mux source selects. */
-#define PRI_SRC_SEL_SEC_SRC 0
-#define PRI_SRC_SEL_HFPLL 1
-#define PRI_SRC_SEL_HFPLL_DIV2 2
-#define SEC_SRC_SEL_QSB 0
-#define SEC_SRC_SEL_AUX 2
-
-/* HFPLL registers offsets. */
-#define HFPLL_MODE 0x00
-#define HFPLL_CONFIG_CTL 0x04
-#define HFPLL_L_VAL 0x08
-#define HFPLL_M_VAL 0x0C
-#define HFPLL_N_VAL 0x10
-#define HFPLL_DROOP_CTL 0x14
-
-/* CP15 L2 indirect addresses. */
-#define L2CPMR_IADDR 0x500
-#define L2CPUCPMR_IADDR 0x501
-
-#define STBY_KHZ 1
-
-#define HFPLL_LOW_VDD_PLL_L_MAX 0x28
-
-#define SECCLKAGD BIT(4)
-
-/* PTE EFUSE register. */
-#define QFPROM_PTE_EFUSE_ADDR (MSM_QFPROM_BASE + 0x00C0)
-
-/* Corner type vreg VDD values */
-#define LVL_NONE RPM_VREG_CORNER_NONE
-#define LVL_LOW RPM_VREG_CORNER_LOW
-#define LVL_NOM RPM_VREG_CORNER_NOMINAL
-#define LVL_HIGH RPM_VREG_CORNER_HIGH
-
-enum scalables {
- CPU0 = 0,
- CPU1,
- CPU2,
- CPU3,
- L2,
- NUM_SCALABLES
+static struct hfpll_data hfpll_data = {
+ .mode_offset = 0x00,
+ .l_offset = 0x08,
+ .m_offset = 0x0C,
+ .n_offset = 0x10,
+ .config_offset = 0x04,
+ .config_val = 0x7845C665,
+ .has_droop_ctl = true,
+ .droop_offset = 0x14,
+ .droop_val = 0x0108C000,
+ .low_vdd_l_max = 40,
+ .vdd[HFPLL_VDD_NONE] = 0,
+ .vdd[HFPLL_VDD_LOW] = 850000,
+ .vdd[HFPLL_VDD_NOM] = 1050000,
};
-enum vregs {
- VREG_CORE,
- VREG_MEM,
- VREG_DIG,
- VREG_HFPLL_A,
- VREG_HFPLL_B,
- NUM_VREG
-};
-
-enum hfpll_vdd_levels {
- HFPLL_VDD_NONE,
- HFPLL_VDD_LOW,
- HFPLL_VDD_NOM
-};
-
-enum pvs {
- PVS_SLOW,
- PVS_NOM,
- PVS_FAST,
- NUM_PVS
-};
-
-struct vreg {
- const char name[15];
- const unsigned int max_vdd;
- const int rpm_vreg_voter;
- const int rpm_vreg_id;
- struct regulator *reg;
- unsigned int cur_vdd;
-};
-
-struct core_speed {
- unsigned int khz;
- int src;
- unsigned int pri_src_sel;
- unsigned int sec_src_sel;
- unsigned int pll_l_val;
-};
-
-struct l2_level {
- struct core_speed speed;
- unsigned int vdd_dig;
- unsigned int vdd_mem;
- unsigned int bw_level;
-};
-
-struct acpu_level {
- unsigned int use_for_scaling;
- struct core_speed speed;
- struct l2_level *l2_level;
- unsigned int vdd_core;
-};
-
-struct scalable {
- void * __iomem const hfpll_base;
- void * __iomem const aux_clk_sel;
- const uint32_t l2cpmr_iaddr;
- struct core_speed *current_speed;
- struct l2_level *l2_vote;
- struct vreg vreg[NUM_VREG];
- unsigned int *hfpll_vdd_tbl;
- bool regulators_initialized;
- bool clocks_initialized;
-};
-
-static unsigned int hfpll_vdd_tbl_8960[] = {
- [HFPLL_VDD_NONE] = 0,
- [HFPLL_VDD_LOW] = 850000,
- [HFPLL_VDD_NOM] = 1050000
-};
-
-static struct scalable scalable_8960[] = {
+static struct scalable scalable[] = {
[CPU0] = {
- .hfpll_base = MSM_HFPLL_BASE + 0x200,
- .aux_clk_sel = MSM_ACC0_BASE + 0x014,
- .l2cpmr_iaddr = L2CPUCPMR_IADDR,
- .vreg[VREG_CORE] = { "krait0", 1300000 },
- .vreg[VREG_MEM] = { "krait0_mem", 1150000,
- RPM_VREG_VOTER1,
- RPM_VREG_ID_PM8921_L24 },
- .vreg[VREG_DIG] = { "krait0_dig", 1150000,
- RPM_VREG_VOTER1,
- RPM_VREG_ID_PM8921_S3 },
- .vreg[VREG_HFPLL_A] = { "hfpll0_s8", 2100000,
- RPM_VREG_VOTER1,
- RPM_VREG_ID_PM8921_S8 },
- .vreg[VREG_HFPLL_B] = { "hfpll0_l23", 1800000,
- RPM_VREG_VOTER1,
- RPM_VREG_ID_PM8921_L23 },
- },
+ .hfpll_phys_base = 0x00903200,
+ .hfpll_data = &hfpll_data,
+ .aux_clk_sel_phys = 0x02088014,
+ .aux_clk_sel = 3,
+ .l2cpmr_iaddr = 0x4501,
+ .vreg[VREG_CORE] = { "krait0", 1300000, 3200000 },
+ .vreg[VREG_MEM] = { "krait0_mem", 1150000 },
+ .vreg[VREG_DIG] = { "krait0_dig", 1150000 },
+ .vreg[VREG_HFPLL_A] = { "krait0_s8", 2050000 },
+ .vreg[VREG_HFPLL_B] = { "krait0_l23", 1800000 },
+ },
[CPU1] = {
- .hfpll_base = MSM_HFPLL_BASE + 0x300,
- .aux_clk_sel = MSM_ACC1_BASE + 0x014,
- .l2cpmr_iaddr = L2CPUCPMR_IADDR,
- .vreg[VREG_CORE] = { "krait1", 1300000 },
- .vreg[VREG_MEM] = { "krait1_mem", 1150000,
- RPM_VREG_VOTER2,
- RPM_VREG_ID_PM8921_L24 },
- .vreg[VREG_DIG] = { "krait1_dig", 1150000,
- RPM_VREG_VOTER2,
- RPM_VREG_ID_PM8921_S3 },
- .vreg[VREG_HFPLL_A] = { "hfpll1_s8", 2100000,
- RPM_VREG_VOTER2,
- RPM_VREG_ID_PM8921_S8 },
- .vreg[VREG_HFPLL_B] = { "hfpll1_l23", 1800000,
- RPM_VREG_VOTER2,
- RPM_VREG_ID_PM8921_L23 },
- },
+ .hfpll_phys_base = 0x00903300,
+ .hfpll_data = &hfpll_data,
+ .aux_clk_sel_phys = 0x02098014,
+ .aux_clk_sel = 3,
+ .l2cpmr_iaddr = 0x5501,
+ .vreg[VREG_CORE] = { "krait1", 1300000, 3200000 },
+ .vreg[VREG_MEM] = { "krait1_mem", 1150000 },
+ .vreg[VREG_DIG] = { "krait1_dig", 1150000 },
+ .vreg[VREG_HFPLL_A] = { "krait1_s8", 2050000 },
+ .vreg[VREG_HFPLL_B] = { "krait1_l23", 1800000 },
+ },
[L2] = {
- .hfpll_base = MSM_HFPLL_BASE + 0x400,
- .hfpll_vdd_tbl = hfpll_vdd_tbl_8960,
- .aux_clk_sel = MSM_APCS_GCC_BASE + 0x028,
- .l2cpmr_iaddr = L2CPMR_IADDR,
- .vreg[VREG_HFPLL_A] = { "hfpll_l2_s8", 2100000,
- RPM_VREG_VOTER6,
- RPM_VREG_ID_PM8921_S8 },
- .vreg[VREG_HFPLL_B] = { "hfpll_l2_l23", 1800000,
- RPM_VREG_VOTER6,
- RPM_VREG_ID_PM8921_L23 },
- },
+ .hfpll_phys_base = 0x00903400,
+ .hfpll_data = &hfpll_data,
+ .aux_clk_sel_phys = 0x02011028,
+ .aux_clk_sel = 3,
+ .l2cpmr_iaddr = 0x0500,
+ .vreg[VREG_HFPLL_A] = { "l2_s8", 2050000 },
+ .vreg[VREG_HFPLL_B] = { "l2_l23", 1800000 },
+ },
};
-static DEFINE_MUTEX(driver_lock);
-static DEFINE_SPINLOCK(l2_lock);
-
-static struct l2_level *l2_freq_tbl;
-static struct acpu_level *acpu_freq_tbl;
-static int l2_freq_tbl_size;
-static struct scalable *scalable;
-#define SCALABLE_TO_CPU(sc) ((sc) - scalable)
-
-/* Instantaneous bandwidth requests in MB/s. */
-#define BW_MBPS(_bw) \
- { \
- .vectors = (struct msm_bus_vectors[]){ \
- {\
- .src = MSM_BUS_MASTER_AMPSS_M0, \
- .dst = MSM_BUS_SLAVE_EBI_CH0, \
- .ib = (_bw) * 1000000UL, \
- .ab = (_bw) * 100000UL, \
- }, \
- { \
- .src = MSM_BUS_MASTER_AMPSS_M1, \
- .dst = MSM_BUS_SLAVE_EBI_CH0, \
- .ib = (_bw) * 1000000UL, \
- .ab = (_bw) * 100000UL, \
- }, \
- }, \
- .num_paths = 2, \
- }
static struct msm_bus_paths bw_level_tbl[] = {
[0] = BW_MBPS(640), /* At least 80 MHz on bus. */
[1] = BW_MBPS(1064), /* At least 133 MHz on bus. */
@@ -250,70 +81,17 @@
[4] = BW_MBPS(3200), /* At least 400 MHz on bus. */
[5] = BW_MBPS(3600), /* At least 450 MHz on bus. */
[6] = BW_MBPS(3936), /* At least 492 MHz on bus. */
- [7] = BW_MBPS(4264), /* At least 533 MHz on bus. */
};
-static struct msm_bus_scale_pdata bus_client_pdata = {
+static struct msm_bus_scale_pdata bus_scale_data = {
.usecase = bw_level_tbl,
.num_usecases = ARRAY_SIZE(bw_level_tbl),
.active_only = 1,
- .name = "acpuclock",
+ .name = "acpuclk-8960",
};
-static uint32_t bus_perf_client;
-
-/* TODO: Update vdd_dig and vdd_mem when voltage data is available. */
-#define L2(x) (&l2_freq_tbl_8960_kraitv1[(x)])
-static struct l2_level l2_freq_tbl_8960_kraitv1[] = {
- [0] = { {STBY_KHZ, QSB, 0, 0, 0x00 }, 1050000, 1050000, 0 },
- [1] = { { 384000, PLL_8, 0, 2, 0x00 }, 1050000, 1050000, 1 },
- [2] = { { 432000, HFPLL, 2, 0, 0x20 }, 1050000, 1050000, 1 },
- [3] = { { 486000, HFPLL, 2, 0, 0x24 }, 1050000, 1050000, 1 },
- [4] = { { 540000, HFPLL, 2, 0, 0x28 }, 1050000, 1050000, 1 },
- [5] = { { 594000, HFPLL, 1, 0, 0x16 }, 1050000, 1050000, 2 },
- [6] = { { 648000, HFPLL, 1, 0, 0x18 }, 1050000, 1050000, 2 },
- [7] = { { 702000, HFPLL, 1, 0, 0x1A }, 1050000, 1050000, 2 },
- [8] = { { 756000, HFPLL, 1, 0, 0x1C }, 1150000, 1150000, 2 },
- [9] = { { 810000, HFPLL, 1, 0, 0x1E }, 1150000, 1150000, 3 },
- [10] = { { 864000, HFPLL, 1, 0, 0x20 }, 1150000, 1150000, 3 },
- [11] = { { 918000, HFPLL, 1, 0, 0x22 }, 1150000, 1150000, 3 },
-};
-
-static struct acpu_level acpu_freq_tbl_8960_kraitv1_slow[] = {
- { 0, {STBY_KHZ, QSB, 0, 0, 0x00 }, L2(0), 900000 },
- { 1, { 384000, PLL_8, 0, 2, 0x00 }, L2(1), 900000 },
- { 1, { 432000, HFPLL, 2, 0, 0x20 }, L2(6), 925000 },
- { 1, { 486000, HFPLL, 2, 0, 0x24 }, L2(6), 925000 },
- { 1, { 540000, HFPLL, 2, 0, 0x28 }, L2(6), 937500 },
- { 1, { 594000, HFPLL, 1, 0, 0x16 }, L2(6), 962500 },
- { 1, { 648000, HFPLL, 1, 0, 0x18 }, L2(6), 987500 },
- { 1, { 702000, HFPLL, 1, 0, 0x1A }, L2(6), 1000000 },
- { 1, { 756000, HFPLL, 1, 0, 0x1C }, L2(11), 1025000 },
- { 1, { 810000, HFPLL, 1, 0, 0x1E }, L2(11), 1062500 },
- { 1, { 864000, HFPLL, 1, 0, 0x20 }, L2(11), 1062500 },
- { 1, { 918000, HFPLL, 1, 0, 0x22 }, L2(11), 1087500 },
- { 0, { 0 } }
-};
-
-static struct acpu_level acpu_freq_tbl_8960_kraitv1_nom_fast[] = {
- { 0, {STBY_KHZ, QSB, 0, 0, 0x00 }, L2(0), 862500 },
- { 1, { 384000, PLL_8, 0, 2, 0x00 }, L2(1), 862500 },
- { 1, { 432000, HFPLL, 2, 0, 0x20 }, L2(6), 862500 },
- { 1, { 486000, HFPLL, 2, 0, 0x24 }, L2(6), 887500 },
- { 1, { 540000, HFPLL, 2, 0, 0x28 }, L2(6), 900000 },
- { 1, { 594000, HFPLL, 1, 0, 0x16 }, L2(6), 925000 },
- { 1, { 648000, HFPLL, 1, 0, 0x18 }, L2(6), 925000 },
- { 1, { 702000, HFPLL, 1, 0, 0x1A }, L2(6), 937500 },
- { 1, { 756000, HFPLL, 1, 0, 0x1C }, L2(11), 962500 },
- { 1, { 810000, HFPLL, 1, 0, 0x1E }, L2(11), 1012500 },
- { 1, { 864000, HFPLL, 1, 0, 0x20 }, L2(11), 1025000 },
- { 1, { 918000, HFPLL, 1, 0, 0x22 }, L2(11), 1025000 },
- { 0, { 0 } }
-};
-
-#undef L2
-#define L2(x) (&l2_freq_tbl_8960_kraitv2[(x)])
-static struct l2_level l2_freq_tbl_8960_kraitv2[] = {
+#define L2(x) (&l2_freq_tbl[(x)])
+static struct l2_level l2_freq_tbl[] = {
[0] = { {STBY_KHZ, QSB, 0, 0, 0x00 }, 1050000, 1050000, 0 },
[1] = { { 384000, PLL_8, 0, 2, 0x00 }, 1050000, 1050000, 1 },
[2] = { { 432000, HFPLL, 2, 0, 0x20 }, 1050000, 1050000, 2 },
@@ -336,7 +114,7 @@
[19] = { { 1350000, HFPLL, 1, 0, 0x32 }, 1150000, 1150000, 6 },
};
-static struct acpu_level acpu_freq_tbl_8960_kraitv2_slow[] = {
+static struct acpu_level acpu_freq_tbl_slow[] = {
{ 0, { STBY_KHZ, QSB, 0, 0, 0x00 }, L2(0), 950000 },
{ 1, { 384000, PLL_8, 0, 2, 0x00 }, L2(1), 950000 },
{ 0, { 432000, HFPLL, 2, 0, 0x20 }, L2(7), 975000 },
@@ -363,7 +141,7 @@
{ 0, { 0 } }
};
-static struct acpu_level acpu_freq_tbl_8960_kraitv2_nom[] = {
+static struct acpu_level acpu_freq_tbl_nom[] = {
{ 0, { STBY_KHZ, QSB, 0, 0, 0x00 }, L2(0), 900000 },
{ 1, { 384000, PLL_8, 0, 2, 0x00 }, L2(1), 900000 },
{ 0, { 432000, HFPLL, 2, 0, 0x20 }, L2(7), 925000 },
@@ -390,7 +168,7 @@
{ 0, { 0 } }
};
-static struct acpu_level acpu_freq_tbl_8960_kraitv2_fast[] = {
+static struct acpu_level acpu_freq_tbl_fast[] = {
{ 0, { STBY_KHZ, QSB, 0, 0, 0x00 }, L2(0), 850000 },
{ 1, { 384000, PLL_8, 0, 2, 0x00 }, L2(1), 850000 },
{ 0, { 432000, HFPLL, 2, 0, 0x20 }, L2(7), 875000 },
@@ -417,811 +195,20 @@
{ 0, { 0 } }
};
-static struct acpu_level *acpu_freq_tbl_8960_v1[NUM_PVS] __initdata = {
- [PVS_SLOW] = acpu_freq_tbl_8960_kraitv1_slow,
- [PVS_NOM] = acpu_freq_tbl_8960_kraitv1_nom_fast,
- [PVS_FAST] = acpu_freq_tbl_8960_kraitv1_nom_fast,
-};
-
-static struct acpu_level *acpu_freq_tbl_8960_v2[NUM_PVS] __initdata = {
- [PVS_SLOW] = acpu_freq_tbl_8960_kraitv2_slow,
- [PVS_NOM] = acpu_freq_tbl_8960_kraitv2_nom,
- [PVS_FAST] = acpu_freq_tbl_8960_kraitv2_fast,
-};
-
-static struct acpu_level *max_acpu_level;
-
-static unsigned long acpuclk_8960_get_rate(int cpu)
-{
- return scalable[cpu].current_speed->khz;
-}
-
-/* Get the selected source on primary MUX. */
-static int get_pri_clk_src(struct scalable *sc)
-{
- uint32_t regval;
-
- regval = get_l2_indirect_reg(sc->l2cpmr_iaddr);
- return regval & 0x3;
-}
-
-/* Set the selected source on primary MUX. */
-static void set_pri_clk_src(struct scalable *sc, uint32_t pri_src_sel)
-{
- uint32_t regval;
-
- regval = get_l2_indirect_reg(sc->l2cpmr_iaddr);
- regval &= ~0x3;
- regval |= (pri_src_sel & 0x3);
- set_l2_indirect_reg(sc->l2cpmr_iaddr, regval);
- /* Wait for switch to complete. */
- mb();
- udelay(1);
-}
-
-/* Get the selected source on secondary MUX. */
-static int get_sec_clk_src(struct scalable *sc)
-{
- uint32_t regval;
-
- regval = get_l2_indirect_reg(sc->l2cpmr_iaddr);
- return (regval >> 2) & 0x3;
-}
-
-/* Set the selected source on secondary MUX. */
-static void set_sec_clk_src(struct scalable *sc, uint32_t sec_src_sel)
-{
- uint32_t regval;
-
- /* Disable secondary source clock gating during switch. */
- regval = get_l2_indirect_reg(sc->l2cpmr_iaddr);
- regval |= SECCLKAGD;
- set_l2_indirect_reg(sc->l2cpmr_iaddr, regval);
-
- /* Program the MUX. */
- regval &= ~(0x3 << 2);
- regval |= ((sec_src_sel & 0x3) << 2);
- set_l2_indirect_reg(sc->l2cpmr_iaddr, regval);
-
- /* Wait for switch to complete. */
- mb();
- udelay(1);
-
- /* Re-enable secondary source clock gating. */
- regval &= ~SECCLKAGD;
- set_l2_indirect_reg(sc->l2cpmr_iaddr, regval);
-}
-
-/* Enable an already-configured HFPLL. */
-static void hfpll_enable(struct scalable *sc, bool skip_regulators)
-{
- int rc;
-
- if (!skip_regulators) {
- if (cpu_is_msm8960()) {
- rc = rpm_vreg_set_voltage(
- sc->vreg[VREG_HFPLL_A].rpm_vreg_id,
- sc->vreg[VREG_HFPLL_A].rpm_vreg_voter,
- 2050000,
- sc->vreg[VREG_HFPLL_A].max_vdd, 0);
- if (rc)
- pr_err("%s regulator enable failed (%d)\n",
- sc->vreg[VREG_HFPLL_A].name, rc);
- }
- rc = rpm_vreg_set_voltage(sc->vreg[VREG_HFPLL_B].rpm_vreg_id,
- sc->vreg[VREG_HFPLL_B].rpm_vreg_voter, 1800000,
- sc->vreg[VREG_HFPLL_B].max_vdd, 0);
- if (rc)
- pr_err("%s regulator enable failed (%d)\n",
- sc->vreg[VREG_HFPLL_B].name, rc);
- }
- /* Disable PLL bypass mode. */
- writel_relaxed(0x2, sc->hfpll_base + HFPLL_MODE);
-
- /*
- * H/W requires a 5us delay between disabling the bypass and
- * de-asserting the reset. Delay 10us just to be safe.
- */
- mb();
- udelay(10);
-
- /* De-assert active-low PLL reset. */
- writel_relaxed(0x6, sc->hfpll_base + HFPLL_MODE);
-
- /* Wait for PLL to lock. */
- mb();
- udelay(60);
-
- /* Enable PLL output. */
- writel_relaxed(0x7, sc->hfpll_base + HFPLL_MODE);
-}
-
-/* Disable a HFPLL for power-savings or while its being reprogrammed. */
-static void hfpll_disable(struct scalable *sc, bool skip_regulators)
-{
- int rc;
-
- /*
- * Disable the PLL output, disable test mode, enable
- * the bypass mode, and assert the reset.
- */
- writel_relaxed(0, sc->hfpll_base + HFPLL_MODE);
-
- if (!skip_regulators) {
- rc = rpm_vreg_set_voltage(sc->vreg[VREG_HFPLL_B].rpm_vreg_id,
- sc->vreg[VREG_HFPLL_B].rpm_vreg_voter, 0,
- 0, 0);
- if (rc)
- pr_err("%s regulator enable failed (%d)\n",
- sc->vreg[VREG_HFPLL_B].name, rc);
-
- if (cpu_is_msm8960()) {
- rc = rpm_vreg_set_voltage(
- sc->vreg[VREG_HFPLL_A].rpm_vreg_id,
- sc->vreg[VREG_HFPLL_A].rpm_vreg_voter,
- 0, 0, 0);
- if (rc)
- pr_err("%s regulator enable failed (%d)\n",
- sc->vreg[VREG_HFPLL_A].name, rc);
- }
- }
-}
-
-/* Program the HFPLL rate. Assumes HFPLL is already disabled. */
-static void hfpll_set_rate(struct scalable *sc, struct core_speed *tgt_s)
-{
- writel_relaxed(tgt_s->pll_l_val, sc->hfpll_base + HFPLL_L_VAL);
-}
-
-/* Return the L2 speed that should be applied. */
-static struct l2_level *compute_l2_level(struct scalable *sc,
- struct l2_level *vote_l)
-{
- struct l2_level *new_l;
- int cpu;
-
- /* Bounds check. */
- BUG_ON(vote_l >= (l2_freq_tbl + l2_freq_tbl_size));
-
- /* Find max L2 speed vote. */
- sc->l2_vote = vote_l;
- new_l = l2_freq_tbl;
- for_each_present_cpu(cpu)
- new_l = max(new_l, scalable[cpu].l2_vote);
-
- return new_l;
-}
-
-/* Update the bus bandwidth request. */
-static void set_bus_bw(unsigned int bw)
-{
- int ret;
-
- /* Bounds check. */
- if (bw >= ARRAY_SIZE(bw_level_tbl)) {
- pr_err("invalid bandwidth request (%d)\n", bw);
- return;
- }
-
- /* Update bandwidth if request has changed. This may sleep. */
- ret = msm_bus_scale_client_update_request(bus_perf_client, bw);
- if (ret)
- pr_err("bandwidth request failed (%d)\n", ret);
-}
-
-/* Set the CPU or L2 clock speed. */
-static void set_speed(struct scalable *sc, struct core_speed *tgt_s,
- enum setrate_reason reason)
-{
- struct core_speed *strt_s = sc->current_speed;
-
- if (tgt_s == strt_s)
- return;
-
- if (strt_s->src == HFPLL && tgt_s->src == HFPLL) {
- /*
- * Move to an always-on source running at a frequency that does
- * not require an elevated CPU voltage. PLL8 is used here.
- */
- set_sec_clk_src(sc, SEC_SRC_SEL_AUX);
- set_pri_clk_src(sc, PRI_SRC_SEL_SEC_SRC);
-
- /* Program CPU HFPLL. */
- hfpll_disable(sc, 1);
- hfpll_set_rate(sc, tgt_s);
- hfpll_enable(sc, 1);
-
- /* Move CPU to HFPLL source. */
- set_pri_clk_src(sc, tgt_s->pri_src_sel);
- } else if (strt_s->src == HFPLL && tgt_s->src != HFPLL) {
- /*
- * If responding to CPU_DEAD we must be running on another CPU.
- * Therefore, we can't access the downed CPU's clock MUX CP15
- * registers from here and can't change clock sources. If the
- * CPU is collapsed, however, it is still safe to turn off the
- * PLL without switching the MUX away from it.
- */
- if (reason != SETRATE_HOTPLUG || sc == &scalable[L2]) {
- set_sec_clk_src(sc, tgt_s->sec_src_sel);
- set_pri_clk_src(sc, tgt_s->pri_src_sel);
- hfpll_disable(sc, 0);
- } else if (reason == SETRATE_HOTPLUG
- && msm_pm_verify_cpu_pc(SCALABLE_TO_CPU(sc))) {
- hfpll_disable(sc, 0);
- }
- } else if (strt_s->src != HFPLL && tgt_s->src == HFPLL) {
- /*
- * If responding to CPU_UP_PREPARE, we can't change CP15
- * registers for the CPU that's coming up since we're not
- * running on that CPU. That's okay though, since the MUX
- * source was not changed on the way down, either.
- */
- if (reason != SETRATE_HOTPLUG || sc == &scalable[L2]) {
- hfpll_set_rate(sc, tgt_s);
- hfpll_enable(sc, 0);
- set_pri_clk_src(sc, tgt_s->pri_src_sel);
- } else if (reason == SETRATE_HOTPLUG
- && msm_pm_verify_cpu_pc(SCALABLE_TO_CPU(sc))) {
- /* PLL was disabled during hot-unplug. Re-enable it. */
- hfpll_set_rate(sc, tgt_s);
- hfpll_enable(sc, 0);
- }
- } else {
- if (reason != SETRATE_HOTPLUG || sc == &scalable[L2])
- set_sec_clk_src(sc, tgt_s->sec_src_sel);
- }
-
- sc->current_speed = tgt_s;
-}
-
-/* Apply any per-cpu voltage increases. */
-static int increase_vdd(int cpu, unsigned int vdd_core, unsigned int vdd_mem,
- unsigned int vdd_dig, enum setrate_reason reason)
-{
- struct scalable *sc = &scalable[cpu];
- int rc = 0;
-
- /*
- * Increase vdd_mem active-set before vdd_dig.
- * vdd_mem should be >= vdd_dig.
- */
- if (vdd_mem > sc->vreg[VREG_MEM].cur_vdd) {
- rc = rpm_vreg_set_voltage(sc->vreg[VREG_MEM].rpm_vreg_id,
- sc->vreg[VREG_MEM].rpm_vreg_voter, vdd_mem,
- sc->vreg[VREG_MEM].max_vdd, 0);
- if (rc) {
- pr_err("%s increase failed (%d)\n",
- sc->vreg[VREG_MEM].name, rc);
- return rc;
- }
- sc->vreg[VREG_MEM].cur_vdd = vdd_mem;
- }
-
- /* Increase vdd_dig active-set vote. */
- if (vdd_dig > sc->vreg[VREG_DIG].cur_vdd) {
- rc = rpm_vreg_set_voltage(sc->vreg[VREG_DIG].rpm_vreg_id,
- sc->vreg[VREG_DIG].rpm_vreg_voter, vdd_dig,
- sc->vreg[VREG_DIG].max_vdd, 0);
- if (rc) {
- pr_err("%s increase failed (%d)\n",
- sc->vreg[VREG_DIG].name, rc);
- return rc;
- }
- sc->vreg[VREG_DIG].cur_vdd = vdd_dig;
- }
-
- /*
- * Update per-CPU core voltage. Don't do this for the hotplug path for
- * which it should already be correct. Attempting to set it is bad
- * because we don't know what CPU we are running on at this point, but
- * the CPU regulator API requires we call it from the affected CPU.
- */
- if (vdd_core > sc->vreg[VREG_CORE].cur_vdd
- && reason != SETRATE_HOTPLUG) {
- rc = regulator_set_voltage(sc->vreg[VREG_CORE].reg, vdd_core,
- sc->vreg[VREG_CORE].max_vdd);
- if (rc) {
- pr_err("%s increase failed (%d)\n",
- sc->vreg[VREG_CORE].name, rc);
- return rc;
- }
- sc->vreg[VREG_CORE].cur_vdd = vdd_core;
- }
-
- return rc;
-}
-
-/* Apply any per-cpu voltage decreases. */
-static void decrease_vdd(int cpu, unsigned int vdd_core, unsigned int vdd_mem,
- unsigned int vdd_dig, enum setrate_reason reason)
-{
- struct scalable *sc = &scalable[cpu];
- int ret;
-
- /*
- * Update per-CPU core voltage. This must be called on the CPU
- * that's being affected. Don't do this in the hotplug remove path,
- * where the rail is off and we're executing on the other CPU.
- */
- if (vdd_core < sc->vreg[VREG_CORE].cur_vdd
- && reason != SETRATE_HOTPLUG) {
- ret = regulator_set_voltage(sc->vreg[VREG_CORE].reg, vdd_core,
- sc->vreg[VREG_CORE].max_vdd);
- if (ret) {
- pr_err("%s decrease failed (%d)\n",
- sc->vreg[VREG_CORE].name, ret);
- return;
- }
- sc->vreg[VREG_CORE].cur_vdd = vdd_core;
- }
-
- /* Decrease vdd_dig active-set vote. */
- if (vdd_dig < sc->vreg[VREG_DIG].cur_vdd) {
- ret = rpm_vreg_set_voltage(sc->vreg[VREG_DIG].rpm_vreg_id,
- sc->vreg[VREG_DIG].rpm_vreg_voter, vdd_dig,
- sc->vreg[VREG_DIG].max_vdd, 0);
- if (ret) {
- pr_err("%s decrease failed (%d)\n",
- sc->vreg[VREG_DIG].name, ret);
- return;
- }
- sc->vreg[VREG_DIG].cur_vdd = vdd_dig;
- }
-
- /*
- * Decrease vdd_mem active-set after vdd_dig.
- * vdd_mem should be >= vdd_dig.
- */
- if (vdd_mem < sc->vreg[VREG_MEM].cur_vdd) {
- ret = rpm_vreg_set_voltage(sc->vreg[VREG_MEM].rpm_vreg_id,
- sc->vreg[VREG_MEM].rpm_vreg_voter, vdd_mem,
- sc->vreg[VREG_MEM].max_vdd, 0);
- if (ret) {
- pr_err("%s decrease failed (%d)\n",
- sc->vreg[VREG_MEM].name, ret);
- return;
- }
- sc->vreg[VREG_MEM].cur_vdd = vdd_mem;
- }
-}
-
-static unsigned int calculate_vdd_mem(struct acpu_level *tgt)
-{
- return tgt->l2_level->vdd_mem;
-}
-
-static unsigned int calculate_vdd_dig(struct acpu_level *tgt)
-{
- unsigned int pll_vdd_dig;
-
- if (tgt->l2_level->speed.src != HFPLL)
- pll_vdd_dig = scalable[L2].hfpll_vdd_tbl[HFPLL_VDD_NONE];
- else if (tgt->l2_level->speed.pll_l_val > HFPLL_LOW_VDD_PLL_L_MAX)
- pll_vdd_dig = scalable[L2].hfpll_vdd_tbl[HFPLL_VDD_NOM];
- else
- pll_vdd_dig = scalable[L2].hfpll_vdd_tbl[HFPLL_VDD_LOW];
-
- return max(tgt->l2_level->vdd_dig, pll_vdd_dig);
-}
-
-static unsigned int calculate_vdd_core(struct acpu_level *tgt)
-{
- return tgt->vdd_core;
-}
-
-/* Set the CPU's clock rate and adjust the L2 rate, if appropriate. */
-static int acpuclk_8960_set_rate(int cpu, unsigned long rate,
- enum setrate_reason reason)
-{
- struct core_speed *strt_acpu_s, *tgt_acpu_s;
- struct l2_level *tgt_l2_l;
- struct acpu_level *tgt;
- unsigned int vdd_mem, vdd_dig, vdd_core;
- unsigned long flags;
- int rc = 0;
-
- if (cpu > num_possible_cpus())
- return -EINVAL;
-
- if (reason == SETRATE_CPUFREQ || reason == SETRATE_HOTPLUG)
- mutex_lock(&driver_lock);
-
- strt_acpu_s = scalable[cpu].current_speed;
-
- /* Return early if rate didn't change. */
- if (rate == strt_acpu_s->khz)
- goto out;
-
- /* Find target frequency. */
- for (tgt = acpu_freq_tbl; tgt->speed.khz != 0; tgt++) {
- if (tgt->speed.khz == rate) {
- tgt_acpu_s = &tgt->speed;
- break;
- }
- }
- if (tgt->speed.khz == 0) {
- rc = -EINVAL;
- goto out;
- }
-
- /* Calculate voltage requirements for the current CPU. */
- vdd_mem = calculate_vdd_mem(tgt);
- vdd_dig = calculate_vdd_dig(tgt);
- vdd_core = calculate_vdd_core(tgt);
-
- /* Increase VDD levels if needed. */
- if (reason == SETRATE_CPUFREQ || reason == SETRATE_HOTPLUG) {
- rc = increase_vdd(cpu, vdd_core, vdd_mem, vdd_dig, reason);
- if (rc)
- goto out;
- }
-
- pr_debug("Switching from ACPU%d rate %u KHz -> %u KHz\n",
- cpu, strt_acpu_s->khz, tgt_acpu_s->khz);
-
- /* Set the CPU speed. */
- set_speed(&scalable[cpu], tgt_acpu_s, reason);
-
- /*
- * Update the L2 vote and apply the rate change. A spinlock is
- * necessary to ensure L2 rate is calulated and set atomically,
- * even if acpuclk_8960_set_rate() is called from an atomic context
- * and the driver_lock mutex is not acquired.
- */
- spin_lock_irqsave(&l2_lock, flags);
- tgt_l2_l = compute_l2_level(&scalable[cpu], tgt->l2_level);
- set_speed(&scalable[L2], &tgt_l2_l->speed, reason);
- spin_unlock_irqrestore(&l2_lock, flags);
-
- /* Nothing else to do for power collapse or SWFI. */
- if (reason == SETRATE_PC || reason == SETRATE_SWFI)
- goto out;
-
- /* Update bus bandwith request. */
- set_bus_bw(tgt_l2_l->bw_level);
-
- /* Drop VDD levels if we can. */
- decrease_vdd(cpu, vdd_core, vdd_mem, vdd_dig, reason);
-
- pr_debug("ACPU%d speed change complete\n", cpu);
-
-out:
- if (reason == SETRATE_CPUFREQ || reason == SETRATE_HOTPLUG)
- mutex_unlock(&driver_lock);
- return rc;
-}
-
-/* Initialize a HFPLL at a given rate and enable it. */
-static void __cpuinit hfpll_init(struct scalable *sc, struct core_speed *tgt_s)
-{
- pr_debug("Initializing HFPLL%d\n", sc - scalable);
-
- /* Disable the PLL for re-programming. */
- hfpll_disable(sc, 1);
-
- /* Configure PLL parameters for integer mode. */
- writel_relaxed(0x7845C665, sc->hfpll_base + HFPLL_CONFIG_CTL);
- writel_relaxed(0, sc->hfpll_base + HFPLL_M_VAL);
- writel_relaxed(1, sc->hfpll_base + HFPLL_N_VAL);
-
- /* Program droop controller. */
- writel_relaxed(0x0108C000, sc->hfpll_base + HFPLL_DROOP_CTL);
-
- /* Set an initial rate and enable the PLL. */
- hfpll_set_rate(sc, tgt_s);
- hfpll_enable(sc, 0);
-}
-
-/* Voltage regulator initialization. */
-static void __cpuinit regulator_init(int cpu, struct acpu_level *lvl)
-{
- int ret;
- struct scalable *sc = &scalable[cpu];
- unsigned int vdd_mem, vdd_dig, vdd_core;
-
- vdd_mem = calculate_vdd_mem(lvl);
- vdd_dig = calculate_vdd_dig(lvl);
-
- /* Set initial vdd_mem vote. */
- ret = rpm_vreg_set_voltage(sc->vreg[VREG_MEM].rpm_vreg_id,
- sc->vreg[VREG_MEM].rpm_vreg_voter, vdd_mem,
- sc->vreg[VREG_MEM].max_vdd, 0);
- if (ret) {
- pr_err("%s initialization failed (%d)\n",
- sc->vreg[VREG_MEM].name, ret);
- BUG();
- }
- sc->vreg[VREG_MEM].cur_vdd = vdd_mem;
-
- /* Set initial vdd_dig vote. */
- ret = rpm_vreg_set_voltage(sc->vreg[VREG_DIG].rpm_vreg_id,
- sc->vreg[VREG_DIG].rpm_vreg_voter, vdd_dig,
- sc->vreg[VREG_DIG].max_vdd, 0);
- if (ret) {
- pr_err("%s initialization failed (%d)\n",
- sc->vreg[VREG_DIG].name, ret);
- BUG();
- }
- sc->vreg[VREG_DIG].cur_vdd = vdd_dig;
-
- /* Setup Krait CPU regulators and initial core voltage. */
- sc->vreg[VREG_CORE].reg = regulator_get(NULL,
- sc->vreg[VREG_CORE].name);
- if (IS_ERR(sc->vreg[VREG_CORE].reg)) {
- pr_err("regulator_get(%s) failed (%ld)\n",
- sc->vreg[VREG_CORE].name,
- PTR_ERR(sc->vreg[VREG_CORE].reg));
- BUG();
- }
- vdd_core = calculate_vdd_core(lvl);
- ret = regulator_set_voltage(sc->vreg[VREG_CORE].reg, vdd_core,
- sc->vreg[VREG_CORE].max_vdd);
- if (ret) {
- pr_err("%s initialization failed (%d)\n",
- sc->vreg[VREG_CORE].name, ret);
- BUG();
- }
- sc->vreg[VREG_CORE].cur_vdd = vdd_core;
- ret = regulator_enable(sc->vreg[VREG_CORE].reg);
- if (ret) {
- pr_err("regulator_enable(%s) failed (%d)\n",
- sc->vreg[VREG_CORE].name, ret);
- BUG();
- }
- sc->regulators_initialized = true;
-}
-
-/* Set initial rate for a given core. */
-static void __cpuinit init_clock_sources(struct scalable *sc,
- struct core_speed *tgt_s)
-{
- uint32_t regval;
-
- /* Select PLL8 as AUX source input to the secondary MUX. */
- writel_relaxed(0x3, sc->aux_clk_sel);
-
- /* Switch away from the HFPLL while it's re-initialized. */
- set_sec_clk_src(sc, SEC_SRC_SEL_AUX);
- set_pri_clk_src(sc, PRI_SRC_SEL_SEC_SRC);
- hfpll_init(sc, tgt_s);
-
- /* Set PRI_SRC_SEL_HFPLL_DIV2 divider to div-2. */
- regval = get_l2_indirect_reg(sc->l2cpmr_iaddr);
- regval &= ~(0x3 << 6);
- set_l2_indirect_reg(sc->l2cpmr_iaddr, regval);
-
- /* Switch to the target clock source. */
- set_sec_clk_src(sc, tgt_s->sec_src_sel);
- set_pri_clk_src(sc, tgt_s->pri_src_sel);
- sc->current_speed = tgt_s;
-}
-
-static void __cpuinit per_cpu_init(void *data)
-{
- int cpu = smp_processor_id();
-
- init_clock_sources(&scalable[cpu], &max_acpu_level->speed);
- scalable[cpu].l2_vote = max_acpu_level->l2_level;
- scalable[cpu].clocks_initialized = true;
-}
-
-/* Register with bus driver. */
-static void __init bus_init(unsigned int init_bw)
-{
- int ret;
-
- bus_perf_client = msm_bus_scale_register_client(&bus_client_pdata);
- if (!bus_perf_client) {
- pr_err("unable to register bus client\n");
- BUG();
- }
-
- ret = msm_bus_scale_client_update_request(bus_perf_client, init_bw);
- if (ret)
- pr_err("initial bandwidth request failed (%d)\n", ret);
-}
-
-#ifdef CONFIG_CPU_FREQ_MSM
-static struct cpufreq_frequency_table freq_table[NR_CPUS][30];
-
-static void __init cpufreq_table_init(void)
-{
- int cpu;
-
- for_each_possible_cpu(cpu) {
- int i, freq_cnt = 0;
- /* Construct the freq_table tables from acpu_freq_tbl. */
- for (i = 0; acpu_freq_tbl[i].speed.khz != 0
- && freq_cnt < ARRAY_SIZE(*freq_table); i++) {
- if (acpu_freq_tbl[i].use_for_scaling) {
- freq_table[cpu][freq_cnt].index = freq_cnt;
- freq_table[cpu][freq_cnt].frequency
- = acpu_freq_tbl[i].speed.khz;
- freq_cnt++;
- }
- }
- /* freq_table not big enough to store all usable freqs. */
- BUG_ON(acpu_freq_tbl[i].speed.khz != 0);
-
- freq_table[cpu][freq_cnt].index = freq_cnt;
- freq_table[cpu][freq_cnt].frequency = CPUFREQ_TABLE_END;
-
- pr_info("CPU%d: %d scaling frequencies supported.\n",
- cpu, freq_cnt);
-
- /* Register table with CPUFreq. */
- cpufreq_frequency_table_get_attr(freq_table[cpu], cpu);
- }
-}
-#else
-static void __init cpufreq_table_init(void) {}
-#endif
-
-#define HOT_UNPLUG_KHZ STBY_KHZ
-static int __cpuinit acpuclock_cpu_callback(struct notifier_block *nfb,
- unsigned long action, void *hcpu)
-{
- static int prev_khz[NR_CPUS];
- static int prev_pri_src[NR_CPUS];
- static int prev_sec_src[NR_CPUS];
- int cpu = (int)hcpu;
-
- switch (action) {
- case CPU_DYING:
- case CPU_DYING_FROZEN:
- /*
- * On Krait v1, the primary and secondary muxes must be set to
- * QSB before L2 power collapse and restored after.
- */
- if (cpu_is_krait_v1()) {
- prev_sec_src[cpu] = get_sec_clk_src(&scalable[cpu]);
- prev_pri_src[cpu] = get_pri_clk_src(&scalable[cpu]);
- set_sec_clk_src(&scalable[cpu], SEC_SRC_SEL_QSB);
- set_pri_clk_src(&scalable[cpu], PRI_SRC_SEL_SEC_SRC);
- }
- break;
- case CPU_DEAD:
- case CPU_DEAD_FROZEN:
- prev_khz[cpu] = acpuclk_8960_get_rate(cpu);
- /* Fall through. */
- case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
- if (scalable[cpu].clocks_initialized)
- acpuclk_8960_set_rate(cpu, HOT_UNPLUG_KHZ,
- SETRATE_HOTPLUG);
- break;
- case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
- if (scalable[cpu].clocks_initialized)
- acpuclk_8960_set_rate(cpu, prev_khz[cpu],
- SETRATE_HOTPLUG);
- if (!scalable[cpu].regulators_initialized)
- regulator_init(cpu, max_acpu_level);
- break;
- case CPU_STARTING:
- case CPU_STARTING_FROZEN:
- if (!scalable[cpu].clocks_initialized) {
- per_cpu_init(NULL);
- } else if (cpu_is_krait_v1()) {
- set_sec_clk_src(&scalable[cpu], prev_sec_src[cpu]);
- set_pri_clk_src(&scalable[cpu], prev_pri_src[cpu]);
- }
- break;
- default:
- break;
- }
-
- return NOTIFY_OK;
-}
-
-static struct notifier_block __cpuinitdata acpuclock_cpu_notifier = {
- .notifier_call = acpuclock_cpu_callback,
-};
-
-static const int krait_needs_vmin(void)
-{
- switch (read_cpuid_id()) {
- case 0x511F04D0:
- case 0x511F04D1:
- case 0x510F06F0:
- return 1;
- default:
- return 0;
- };
-}
-
-static void kraitv2_apply_vmin(struct acpu_level *tbl)
-{
- for (; tbl->speed.khz != 0; tbl++)
- if (tbl->vdd_core < 1150000)
- tbl->vdd_core = 1150000;
-}
-
-static enum pvs __init get_pvs(void)
-{
- uint32_t pte_efuse, pvs;
-
- pte_efuse = readl_relaxed(QFPROM_PTE_EFUSE_ADDR);
- pvs = (pte_efuse >> 10) & 0x7;
- if (pvs == 0x7)
- pvs = (pte_efuse >> 13) & 0x7;
-
- switch (pvs) {
- case 0x0:
- case 0x7:
- pr_info("ACPU PVS: Slow\n");
- return PVS_SLOW;
- case 0x1:
- pr_info("ACPU PVS: Nominal\n");
- return PVS_NOM;
- case 0x3:
- pr_info("ACPU PVS: Fast\n");
- return PVS_FAST;
- default:
- pr_warn("ACPU PVS: Unknown. Defaulting to slow\n");
- return PVS_SLOW;
- }
-}
-
-static void __init select_freq_plan(void)
-{
- struct acpu_level *l;
-
- /* Select frequency tables. */
- if (cpu_is_msm8960()) {
- enum pvs pvs_id = get_pvs();
-
- scalable = scalable_8960;
- if (cpu_is_krait_v1()) {
- acpu_freq_tbl = acpu_freq_tbl_8960_v1[pvs_id];
- l2_freq_tbl = l2_freq_tbl_8960_kraitv1;
- l2_freq_tbl_size = ARRAY_SIZE(l2_freq_tbl_8960_kraitv1);
- } else {
- acpu_freq_tbl = acpu_freq_tbl_8960_v2[pvs_id];
- l2_freq_tbl = l2_freq_tbl_8960_kraitv2;
- l2_freq_tbl_size = ARRAY_SIZE(l2_freq_tbl_8960_kraitv2);
- }
- } else {
- BUG();
- }
- BUG_ON(!acpu_freq_tbl);
- if (krait_needs_vmin())
- kraitv2_apply_vmin(acpu_freq_tbl);
-
- /* Find the max supported scaling frequency. */
- for (l = acpu_freq_tbl; l->speed.khz != 0; l++)
- if (l->use_for_scaling)
- max_acpu_level = l;
- BUG_ON(!max_acpu_level);
- pr_info("Max ACPU freq: %u KHz\n", max_acpu_level->speed.khz);
-}
-
-static struct acpuclk_data acpuclk_8960_data = {
- .set_rate = acpuclk_8960_set_rate,
- .get_rate = acpuclk_8960_get_rate,
- .power_collapse_khz = STBY_KHZ,
- .wait_for_irq_khz = STBY_KHZ,
+static struct acpuclk_krait_params acpuclk_8960_params = {
+ .scalable = scalable,
+ .pvs_acpu_freq_tbl[PVS_SLOW] = acpu_freq_tbl_slow,
+ .pvs_acpu_freq_tbl[PVS_NOMINAL] = acpu_freq_tbl_nom,
+ .pvs_acpu_freq_tbl[PVS_FAST] = acpu_freq_tbl_fast,
+ .l2_freq_tbl = l2_freq_tbl,
+ .l2_freq_tbl_size = ARRAY_SIZE(l2_freq_tbl),
+ .bus_scale_data = &bus_scale_data,
+ .qfprom_phys_base = 0x00700000,
};
static int __init acpuclk_8960_probe(struct platform_device *pdev)
{
- int cpu;
-
- select_freq_plan();
-
- for_each_online_cpu(cpu)
- regulator_init(cpu, max_acpu_level);
- bus_init(max_acpu_level->l2_level->bw_level);
-
- init_clock_sources(&scalable[L2], &max_acpu_level->l2_level->speed);
- on_each_cpu(per_cpu_init, NULL, true);
-
- cpufreq_table_init();
-
- acpuclk_register(&acpuclk_8960_data);
- register_hotcpu_notifier(&acpuclock_cpu_notifier);
-
- return 0;
+ return acpuclk_krait_init(&pdev->dev, &acpuclk_8960_params);
}
static struct platform_driver acpuclk_8960_driver = {