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/*
* board/amlogic/odroidn2/firmware/scp_task/pwr_ctrl.c
*
* Copyright (C) 2018 Amlogic, Inc. 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 as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <gpio.h>
#include "pwm_ctrl.h"
#ifdef CONFIG_CEC_WAKEUP
#include <cec_tx_reg.h>
#endif
#ifdef CONFIG_GPIO_WAKEUP
#include <gpio_key.h>
#endif
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
unsigned int enable_wol = 0; /* disable Wake-On-Lan by default*/
unsigned int enable_5V_system_power = 0; /* disable 5V system power (USB) by default*/
static void set_vddee_voltage(unsigned int target_voltage)
{
unsigned int to, pwm_size = 0;
static int (*pwm_voltage_ee)[2];
/* BOOT_9 = H use PWM_CFG0(0.67v-0.97v), =L use PWM_CFG1(0.69v-0.89v) */
/*set BOOT_9 input mode*/
writel((readl(PREG_PAD_GPIO0_EN_N) | 0x200), PREG_PAD_GPIO0_EN_N);
if (((readl(PREG_PAD_GPIO0_EN_N) & 0x200 ) == 0x200) &&
((readl(PREG_PAD_GPIO0_I) & 0x200 ) == 0x0)) {
uart_puts("use vddee new table!");
uart_puts("\n");
pwm_voltage_ee = pwm_voltage_table_ee_new;
pwm_size = ARRAY_SIZE(pwm_voltage_table_ee_new);
} else {
uart_puts("use vddee table!");
uart_puts("\n");
pwm_voltage_ee = pwm_voltage_table_ee;
pwm_size = ARRAY_SIZE(pwm_voltage_table_ee);
}
for (to = 0; to < pwm_size; to++) {
if (pwm_voltage_ee[to][1] >= target_voltage) {
break;
}
}
if (to >= pwm_size) {
to = pwm_size - 1;
}
writel(*(*(pwm_voltage_ee + to)), AO_PWM_PWM_B);
}
static void power_off_at_24M(unsigned int suspend_from)
{
if (!enable_5V_system_power)
{
/*set gpioH_8 low to power off vcc 5v*/
writel(readl(PREG_PAD_GPIO3_EN_N) & (~(1 << 8)), PREG_PAD_GPIO3_EN_N);
writel(readl(PERIPHS_PIN_MUX_C) & (~(0xf)), PERIPHS_PIN_MUX_C);
}
/*set gpioao_4 low to power off vcck_a*/
writel(readl(AO_GPIO_O) & (~(1 << 4)), AO_GPIO_O);
writel(readl(AO_GPIO_O_EN_N) & (~(1 << 4)), AO_GPIO_O_EN_N);
writel(readl(AO_RTI_PIN_MUX_REG) & (~(0xf << 16)), AO_RTI_PIN_MUX_REG);
if (!enable_wol) {
/*set test_n low to power off vcck_b & vcc 3.3v*/
writel(readl(AO_GPIO_O) & (~(1 << 31)), AO_GPIO_O);
writel(readl(AO_GPIO_O_EN_N) & (~(1 << 31)), AO_GPIO_O_EN_N);
writel(readl(AO_RTI_PIN_MUX_REG1) & (~(0xf << 28)), AO_RTI_PIN_MUX_REG1);
}
/*step down ee voltage*/
set_vddee_voltage(CONFIG_VDDEE_SLEEP_VOLTAGE);
}
static void power_on_at_24M(unsigned int suspend_from)
{
/*step up ee voltage*/
set_vddee_voltage(CONFIG_VDDEE_INIT_VOLTAGE);
if (!enable_wol) {
/*set test_n high to power on vcck_b & vcc 3.3v*/
writel(readl(AO_GPIO_O) | (1 << 31), AO_GPIO_O);
writel(readl(AO_GPIO_O_EN_N) & (~(1 << 31)), AO_GPIO_O_EN_N);
writel(readl(AO_RTI_PIN_MUX_REG1) & (~(0xf << 28)), AO_RTI_PIN_MUX_REG1);
_udelay(100);
}
/*set gpioao_4 high to power on vcck_a*/
writel(readl(AO_GPIO_O) | (1 << 4), AO_GPIO_O);
writel(readl(AO_GPIO_O_EN_N) & (~(1 << 4)), AO_GPIO_O_EN_N);
writel(readl(AO_RTI_PIN_MUX_REG) & (~(0xf << 16)), AO_RTI_PIN_MUX_REG);
_udelay(100);
if (!enable_5V_system_power)
{
/*set gpioH_8 low to power on vcc 5v*/
writel(readl(PREG_PAD_GPIO3_EN_N) | (1 << 8), PREG_PAD_GPIO3_EN_N);
writel(readl(PERIPHS_PIN_MUX_C) & (~(0xf)), PERIPHS_PIN_MUX_C);
}
_udelay(10000);
}
void get_wakeup_source(void *response, unsigned int suspend_from)
{
struct wakeup_info *p = (struct wakeup_info *)response;
struct wakeup_gpio_info *gpio;
unsigned val;
unsigned i = 0;
p->status = RESPONSE_OK;
val = (POWER_KEY_WAKEUP_SRC | AUTO_WAKEUP_SRC | REMOTE_WAKEUP_SRC |
RTC_WAKEUP_SRC | BT_WAKEUP_SRC | ETH_PHY_GPIO_SRC);
#ifdef CONFIG_CEC_WAKEUP
val |= CECB_WAKEUP_SRC;
#endif
p->sources = val;
/* Power Key: AO_GPIO[3]*/
gpio = &(p->gpio_info[i]);
gpio->wakeup_id = POWER_KEY_WAKEUP_SRC;
gpio->gpio_in_idx = GPIOAO_3;
gpio->gpio_in_ao = 1;
gpio->gpio_out_idx = -1;
gpio->gpio_out_ao = -1;
gpio->irq = IRQ_AO_GPIO0_NUM;
gpio->trig_type = GPIO_IRQ_FALLING_EDGE;
p->gpio_info_count = ++i;
/* External RTC: AO_GPIO[7]*/
gpio = &(p->gpio_info[i]);
gpio->wakeup_id = RTC_WAKEUP_SRC;
gpio->gpio_in_idx = GPIOAO_7;
gpio->gpio_in_ao = 1;
gpio->gpio_out_idx = -1;
gpio->gpio_out_ao = -1;
gpio->irq = IRQ_AO_GPIO0_NUM;
gpio->trig_type = GPIO_IRQ_FALLING_EDGE;
p->gpio_info_count = ++i;
if (enable_wol) {
/* Ethernet: GPIOZ_14 */
gpio = &(p->gpio_info[i]);
gpio->wakeup_id = ETH_PHY_GPIO_SRC;
gpio->gpio_in_idx = GPIOZ_14;
gpio->gpio_in_ao = 0;
gpio->gpio_out_idx = -1;
gpio->gpio_out_ao = -1;
gpio->irq = IRQ_GPIO1_NUM;
gpio->trig_type = GPIO_IRQ_FALLING_EDGE;
p->gpio_info_count = ++i;
}
}
extern void __switch_idle_task(void);
static unsigned int detect_key(unsigned int suspend_from)
{
int exit_reason = 0;
unsigned *irq = (unsigned *)WAKEUP_SRC_IRQ_ADDR_BASE;
#ifdef CONFIG_GPIO_WAKEUP
unsigned int is_gpiokey = 0;
#endif
init_remote();
#ifdef CONFIG_CEC_WAKEUP
if (hdmi_cec_func_config & 0x1) {
remote_cec_hw_reset();
cec_node_init();
}
#endif
#ifdef CONFIG_GPIO_WAKEUP
is_gpiokey = init_gpio_key();
#endif
do {
#ifdef CONFIG_CEC_WAKEUP
if (!cec_msg.log_addr)
cec_node_init();
else {
if (readl(AO_CECB_INTR_STAT) & CECB_IRQ_RX_EOM) {
if (cec_power_on_check())
exit_reason = CEC_WAKEUP;
}
}
#endif
if (irq[IRQ_AO_IR_DEC] == IRQ_AO_IR_DEC_NUM) {
irq[IRQ_AO_IR_DEC] = 0xFFFFFFFF;
if (remote_detect_key())
exit_reason = REMOTE_WAKEUP;
}
if (irq[IRQ_VRTC] == IRQ_VRTC_NUM) {
irq[IRQ_VRTC] = 0xFFFFFFFF;
exit_reason = RTC_WAKEUP;
}
if (enable_wol && (irq[IRQ_GPIO1] == IRQ_GPIO1_NUM)) {
irq[IRQ_GPIO1] = 0xFFFFFFFF;
if (!(readl(PREG_PAD_GPIO4_I) & (0x01 << 14))
&& (readl(PREG_PAD_GPIO4_EN_N) & (0x01 << 14)))
exit_reason = ETH_PHY_GPIO;
}
if (irq[IRQ_AO_GPIO0] == IRQ_AO_GPIO0_NUM) {
unsigned val = readl(AO_GPIO_I);
irq[IRQ_AO_GPIO0] = 0xFFFFFFFF;
if ((val & (1 << 3)) == 0)
exit_reason = POWER_KEY_WAKEUP;
else if ((val & (1 << 7)) == 0)
exit_reason = RTC_WAKEUP;
}
if (irq[IRQ_ETH_PTM] == IRQ_ETH_PMT_NUM) {
irq[IRQ_ETH_PTM]= 0xFFFFFFFF;
exit_reason = ETH_PMT_WAKEUP;
}
#ifdef CONFIG_GPIO_WAKEUP
if (is_gpiokey) {
if (gpio_detect_key())
exit_reason = GPIO_WAKEUP;
}
#endif
if (exit_reason)
break;
else
__switch_idle_task();
} while (1);
return exit_reason;
}
static void pwr_op_init(struct pwr_op *pwr_op)
{
pwr_op->power_off_at_24M = power_off_at_24M;
pwr_op->power_on_at_24M = power_on_at_24M;
pwr_op->detect_key = detect_key;
pwr_op->get_wakeup_source = get_wakeup_source;
}
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