mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-08 11:50:43 +09:00
rk: add pwm scale arm voltage support && update rk3026 test frequencies
This commit is contained in:
chenxing
@@ -1,3 +1,4 @@
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obj-y += ft_cpu_tst.o
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obj-y += ft_cpu_tst1.o
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obj-y += ft_test.o
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obj-y += ft_pwm.o
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178
arch/arm/plat-rk/rk_pm_tests/ft/ft_pwm.c
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178
arch/arm/plat-rk/rk_pm_tests/ft/ft_pwm.c
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@@ -0,0 +1,178 @@
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/*
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*
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* Copyright (C) 2013 ROCKCHIP, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/bug.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/kernel.h>
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#include <linux/clk.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/rk29-pwm-regulator.h>
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#include <mach/iomux.h>
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#include <linux/gpio.h>
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#include <mach/board.h>
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#include <plat/pwm.h>
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#include "ft_pwm.h"
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#if 0
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#define DBG(x...) printk(KERN_INFO x)
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#else
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#define DBG(x...)
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#endif
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#if defined(CONFIG_SOC_RK3168) || defined(CONFIG_SOC_RK3168M) || defined(CONFIG_ARCH_RK3188) || defined(CONFIG_ARCH_RK3026)
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const static int pwm_voltage_map[] = {
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800000,825000,850000, 875000,900000, 925000 ,950000, 975000,1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000,1375000
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};
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#else
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const static int pwm_voltage_map[] = {
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950000, 975000,1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000
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};
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#endif
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#if 0
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struct ft_pwm_data {
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int pwm_id;
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char* gpio_name;
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char* pwm_iomux_name;
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unsigned int pwm_gpio;
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unsigned int pwm_iomux_pwm;
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unsigned int pwm_iomux_gpio;
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int pwm_voltage;
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int suspend_voltage;
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int min_uV;
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int max_uV;
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int coefficient;
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const int *pwm_voltage_map;
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};
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#endif
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static struct ft_pwm_data ft_pwm[2] = {
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{
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.pwm_id = 0,
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.min_uV = 820000,
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.max_uV = 1380000,
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.coefficient = 560, //56%
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.pwm_voltage_map = pwm_voltage_map,
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}, {
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.pwm_id = 1,
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.min_uV = 820000,
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.max_uV = 1380000,
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.coefficient = 560, //56%
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.pwm_voltage_map = pwm_voltage_map,
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},
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};
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int ft_pwm_set_rate(struct ft_pwm_data* pwm, int nHz, u32 rate)
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{
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u32 lrc, hrc;
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unsigned long clkrate;
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clkrate = clk_get_rate(clk_get(NULL, "pwm01"));
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printk("%s: out_rate=%d, get clkrate=%lu\n", __func__, nHz, clkrate);
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gpio_request(pwm->pwm_gpio, "ft pwm gpio");
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if (rate == 0) {
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// iomux pwm to gpio
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rk30_mux_api_set(pwm->gpio_name, pwm->pwm_iomux_gpio);
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//disable pull up or down
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gpio_pull_updown(pwm->pwm_gpio, PullDisable);
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// set gpio to low level
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gpio_direction_output(pwm->pwm_gpio, GPIO_LOW);
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} else if (rate < 100) {
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// iomux pwm to gpio
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lrc = clkrate / nHz;
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lrc = lrc >> (1 + (PWM_DIV >> 9));
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lrc = lrc ? lrc : 1;
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hrc = lrc * rate / 100;
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hrc = hrc ? hrc : 1;
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// iomux pwm
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rk30_mux_api_set(pwm->pwm_iomux_name, pwm->pwm_iomux_pwm);
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printk("%s: lrc=%d, hrc=%d\n", __func__, lrc, hrc);
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rk_pwm_setup(pwm->pwm_id, PWM_DIV, hrc, lrc);
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} else if (rate == 100) {
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// iomux pwm to gpio
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rk30_mux_api_set(pwm->gpio_name, pwm->pwm_iomux_gpio);
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//disable pull up or down
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gpio_pull_updown(pwm->pwm_gpio, PullDisable);
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// set gpio to low level
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gpio_direction_output(pwm->pwm_gpio, GPIO_HIGH);
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} else {
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printk("%s:rate error\n",__func__);
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return -1;
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}
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usleep_range(10 * 1000, 10 * 1000);
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return (0);
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}
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int ft_pwm_regulator_get_voltage(char* name)
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{
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DBG("%s: get %s voltage\n", __func__, name);
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return 0;
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}
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int ft_pwm_set_voltage(char *name, int vol)
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{
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int ret = 0;
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// VDD12 = 1.40 - 0.455*D , 其中D为PWM占空比,
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int pwm_value, pwm_id = 0;
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if (strcmp(name, "arm") == 0) {
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pwm_id = 0;
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} else if (strcmp(name, "logic") == 0) {
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pwm_id = 1;
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} else {
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printk("unknown name");
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return -EINVAL;
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}
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printk("%s: name=%s, pwm_id=%d, vol=%d\n", __func__, name, pwm_id, vol);
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/* pwm_value %, coefficient * 1000 */
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pwm_value = (ft_pwm[pwm_id].max_uV - vol) / ft_pwm[pwm_id].coefficient / 10;
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printk("%s: name=%s, pwm_id=%d, duty=%d%%, [min,max]=[%d, %d], coefficient=%d\n",
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__func__, name, pwm_id, pwm_value,
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ft_pwm[pwm_id].min_uV,
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ft_pwm[pwm_id].max_uV,
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ft_pwm[pwm_id].coefficient);
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ret = ft_pwm_set_rate(&ft_pwm[pwm_id], 1000 * 1000, pwm_value);
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if (ret != 0) {
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printk("%s: fail to set pwm rate, pwm_value = %d\n", __func__, pwm_value);
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return -1;
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}
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return 0;
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}
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static int pwm_mode[] = {PWM0, PWM1, PWM2};
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void ft_pwm_init(void)
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{
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int i = 0;
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for (i = 0; i < ARRAY_SIZE(ft_pwm); i++) {
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ft_pwm[i].pwm_gpio = iomux_mode_to_gpio(pwm_mode[ft_pwm[i].pwm_id]);
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ft_pwm[i].pwm_iomux_pwm = pwm_mode[ft_pwm[i].pwm_id];
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ft_pwm[i].pwm_iomux_gpio = iomux_switch_gpio_mode(pwm_mode[ft_pwm[i].pwm_id]);
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}
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}
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49
arch/arm/plat-rk/rk_pm_tests/ft/ft_pwm.h
Normal file
49
arch/arm/plat-rk/rk_pm_tests/ft/ft_pwm.h
Normal file
@@ -0,0 +1,49 @@
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/*
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*
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* Copyright (C) 2013 ROCKCHIP, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/bug.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/kernel.h>
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#include <linux/clk.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/rk29-pwm-regulator.h>
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#include <mach/iomux.h>
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#include <linux/gpio.h>
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#include <mach/board.h>
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#include <plat/pwm.h>
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struct ft_pwm_data {
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int pwm_id;
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char* gpio_name;
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char* pwm_iomux_name;
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unsigned int pwm_gpio;
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unsigned int pwm_iomux_pwm;
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unsigned int pwm_iomux_gpio;
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int pwm_voltage;
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int suspend_voltage;
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int min_uV;
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int max_uV;
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int coefficient;
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const int *pwm_voltage_map;
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};
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int ft_pwm_set_rate(struct ft_pwm_data* pwm, int nHz, u32 rate);
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int ft_pwm_regulator_get_voltage(char* name);
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int ft_pwm_set_voltage(char *name, int vol);
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void ft_pwm_init(void);
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@@ -49,9 +49,9 @@ REVISION 0.01
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#include <linux/kthread.h>
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#include <linux/clk.h>
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#include <linux/suspend.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include "ft_pwm.h"
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#if 0
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@@ -75,6 +75,9 @@ REVISION 0.01
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#define ft_printk_info(fmt, arg...) {while(0);}
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#endif
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#define FT_PWM 0
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int pwm_volt[5] = {900000, 1250000, 1350000, 0, 0};
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#define MHZ (1000*1000)
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#define TST_SETUPS (4)
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@@ -138,7 +141,7 @@ const static unsigned long l2_cpy_cnt[TST_SETUPS]={5*3,5*4,0,0};
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#elif defined(CONFIG_ARCH_RK3026)
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const static unsigned long arm_setups_rate[4] = {312 * MHZ, 816 * MHZ, 0, 0};
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const static unsigned long arm_setups_rate[4] = {312 * MHZ, 816 * MHZ, 1008 * MHZ, 0};
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const static unsigned long l1_tst_cnt[TST_SETUPS]={5 * 10, 5 * 10, 0, 0};
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const static unsigned long l2_cpy_cnt[TST_SETUPS]={5 * 3, 5 * 4, 0, 0};
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@@ -510,6 +513,10 @@ void ft_cpu_test_type0(int steps)
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ft_printk_dbg("test typ0 step%d cpu=%d start\n",steps,cpu);
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//arm rate init
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ft_cpu_l1_test(l1_tst_cnt[steps]);
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#if FT_PWM
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ft_pwm_set_voltage("arm", pwm_volt[0]);
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mdelay(5);
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#endif
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per_cpu(cpu_tst_flags, cpu)&=~setup_l1_bits[steps];
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//temp=ft_test_cpus_l2(l2_test_buf[cpu],sizeof(char)*BUF_SIZE,20);
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@@ -534,8 +541,9 @@ int ft_cpu_test_type0_check(int steps,const char *str)
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for (cpu = 0; cpu < NR_CPUS; cpu++)
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{
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ret|=per_cpu(cpu_tst_flags, cpu);
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ft_printk_dbg("setup%d,cpu%d flags=%x(%x)\n",steps,cpu,per_cpu(cpu_tst_flags, cpu)&setup_bits_msk[steps],
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per_cpu(cpu_tst_flags, cpu));
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ft_printk_dbg("setup%d,cpu%d flags=%x(%x)\n",
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steps, cpu, per_cpu(cpu_tst_flags, cpu) & setup_bits_msk[steps],
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per_cpu(cpu_tst_flags, cpu));
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}
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ret&=setup_bits_msk[steps];// test setup1
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@@ -607,24 +615,27 @@ int ft_cpu_test_type1_check(int steps,const char *str)
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if(arm_setups_rate[steps]<rate)
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clk_set_rate(arm_clk,arm_setups_rate[steps]);
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#ifdef ENABLE_FT_TEST_GPIO
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#if FT_PWM
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ft_pwm_set_voltage("arm", pwm_volt[steps]);
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mdelay(5);
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#else
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#ifdef ENABLE_FT_TEST_GPIO
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// send msg to ctr board to up the volt
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gpio_request(FT_CLIENT_READY_PIN, "client ready");
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gpio_request(FT_CLIENT_IDLE_PIN, "client idle");
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gpio_direction_output(FT_CLIENT_READY_PIN, GPIO_HIGH);
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gpio_direction_input(FT_CLIENT_IDLE_PIN);
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// waiting for volt upping ok
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if((steps%2))
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while( 0 == gpio_get_value(FT_CLIENT_IDLE_PIN));
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else
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while( 1 == gpio_get_value(FT_CLIENT_IDLE_PIN));
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gpio_set_value(FT_CLIENT_READY_PIN, GPIO_LOW);
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#endif
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gpio_set_value(FT_CLIENT_READY_PIN, GPIO_LOW);
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#endif
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#endif
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if(arm_setups_rate[steps]>=rate)
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clk_set_rate(arm_clk,arm_setups_rate[steps]);
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@@ -640,8 +651,9 @@ int ft_cpu_test_type1_check(int steps,const char *str)
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for (cpu = 0; cpu < NR_CPUS; cpu++)
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{
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ret|=per_cpu(cpu_tst_flags, cpu);
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ft_printk_dbg("setup%d,cpu%d flags=%x(%x)\n",steps,cpu,per_cpu(cpu_tst_flags, cpu)&setup_bits_msk[steps],
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per_cpu(cpu_tst_flags, cpu));
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ft_printk_dbg("setup%d,cpu%d flags=%x(%x)\n",
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steps, cpu, per_cpu(cpu_tst_flags, cpu) & setup_bits_msk[steps],
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per_cpu(cpu_tst_flags, cpu));
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}
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ret&=setup_bits_msk[steps];// test setup2
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@@ -692,6 +704,7 @@ static int __init rk_ft_tests_init(void)
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char *buf;
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arm_clk=clk_get(NULL, "cpu");
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ft_pwm_init();
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for (cpu = 0; cpu < NR_CPUS; cpu++) {
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l2_test_mbuf[cpu]=NULL;
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buf = kmalloc(BUF_SIZE_M, GFP_KERNEL);
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