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/* linux/arch/arm/plat-s5p/dev-tmu.c
*
* Copyright 2009 by SAMSUNG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <asm/irq.h>
#include <mach/irqs.h>
#include <mach/map.h>
#include <plat/devs.h>
#include <plat/s5p-tmu.h>
static struct resource s5p_tmu_resource[] = {
[0] = {
.start = S5P_PA_TMU,
.end = S5P_PA_TMU + 0xFFFF - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_TMU,
.end = IRQ_TMU,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device s5p_device_tmu = {
.name = "s5p-tmu",
.id = -1,
.num_resources = ARRAY_SIZE(s5p_tmu_resource),
.resource = s5p_tmu_resource,
};
/*
* The below temperature value is derived from testing smdk4x12 board
* in chamber
* 78 degree : threshold temp
* 87 degree : throttling temperature
* 103 degree : Waring temperature
* 110 degree : Tripping temperature
* 85 degree : Memory throttling
* 120 degree : To protect chip,forcely kernel panic
*/
static struct s5p_platform_tmu default_tmu_data __initdata = {
.ts = {
.stop_1st_throttle = 78,
.start_1st_throttle = 80,
.stop_2nd_throttle = 87,
.start_2nd_throttle = 103,
.start_tripping = 110,
.start_emergency = 120,
.stop_mem_throttle = 80,
.start_mem_throttle = 85,
},
.cpufreq = {
.limit_1st_throttle = 800000,
.limit_2nd_throttle = 200000,
},
.mp = {
.rclk = 24000000,
.period_bank_refresh = 3900,
},
.cfg = {
.mode = 1,
.slope = 80,
.sampling_rate = 1000,
.monitoring_rate = 10000,
},
};
int s5p_tmu_get_irqno(int num)
{
return platform_get_irq(&s5p_device_tmu, num);
}
struct s5p_tmu *s5p_tmu_get_platdata(void)
{
return platform_get_drvdata(&s5p_device_tmu);
}
void __init s5p_tmu_set_platdata(struct s5p_platform_tmu *pd)
{
struct s5p_platform_tmu *npd;
npd = kmalloc(sizeof(struct s5p_platform_tmu), GFP_KERNEL);
if (!npd) {
printk(KERN_ERR "%s: no memory for platform data\n", __func__);
} else {
if (!pd->ts.stop_1st_throttle)
memcpy(&npd->ts, &default_tmu_data.ts,
sizeof(struct temperature_params));
else
memcpy(&npd->ts, &pd->ts,
sizeof(struct temperature_params));
if (!(pd->cpufreq.limit_1st_throttle))
memcpy(&npd->cpufreq, &default_tmu_data.cpufreq,
sizeof(struct cpufreq_params));
else
memcpy(&npd->cpufreq, &pd->cpufreq,
sizeof(struct cpufreq_params));
if (pd->temp_compensate.arm_volt)
memcpy(&npd->temp_compensate, &pd->temp_compensate,
sizeof(struct temp_compensate_params));
s5p_device_tmu.dev.platform_data = npd;
}
}
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