u-boot/arch/arm/mach-exynos/power.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

261 lines
5.9 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Samsung Electronics
* Donghwa Lee <dh09.lee@samsung.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/power.h>
static void exynos4_mipi_phy_control(unsigned int dev_index,
unsigned int enable)
{
struct exynos4_power *pmu =
(struct exynos4_power *)samsung_get_base_power();
unsigned int addr, cfg = 0;
if (dev_index == 0)
addr = (unsigned int)&pmu->mipi_phy0_control;
else
addr = (unsigned int)&pmu->mipi_phy1_control;
cfg = readl(addr);
if (enable)
cfg |= (EXYNOS_MIPI_PHY_MRESETN | EXYNOS_MIPI_PHY_ENABLE);
else
cfg &= ~(EXYNOS_MIPI_PHY_MRESETN | EXYNOS_MIPI_PHY_ENABLE);
writel(cfg, addr);
}
void set_mipi_phy_ctrl(unsigned int dev_index, unsigned int enable)
{
if (cpu_is_exynos4())
exynos4_mipi_phy_control(dev_index, enable);
}
void exynos5_set_usbhost_phy_ctrl(unsigned int enable)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
if (enable) {
/* Enabling USBHOST_PHY */
setbits_le32(&power->usbhost_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
} else {
/* Disabling USBHOST_PHY */
clrbits_le32(&power->usbhost_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
}
}
void exynos4412_set_usbhost_phy_ctrl(unsigned int enable)
{
struct exynos4412_power *power =
(struct exynos4412_power *)samsung_get_base_power();
if (enable) {
/* Enabling USBHOST_PHY */
setbits_le32(&power->usbhost_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
setbits_le32(&power->hsic1_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
setbits_le32(&power->hsic2_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
} else {
/* Disabling USBHOST_PHY */
clrbits_le32(&power->usbhost_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
clrbits_le32(&power->hsic1_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
clrbits_le32(&power->hsic2_phy_control,
POWER_USB_HOST_PHY_CTRL_EN);
}
}
void set_usbhost_phy_ctrl(unsigned int enable)
{
if (cpu_is_exynos5())
exynos5_set_usbhost_phy_ctrl(enable);
else if (cpu_is_exynos4())
if (proid_is_exynos4412())
exynos4412_set_usbhost_phy_ctrl(enable);
}
static void exynos5_set_usbdrd_phy_ctrl(unsigned int enable)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
if (enable) {
/* Enabling USBDRD_PHY */
setbits_le32(&power->usbdrd_phy_control,
POWER_USB_DRD_PHY_CTRL_EN);
} else {
/* Disabling USBDRD_PHY */
clrbits_le32(&power->usbdrd_phy_control,
POWER_USB_DRD_PHY_CTRL_EN);
}
}
static void exynos5420_set_usbdev_phy_ctrl(unsigned int enable)
{
struct exynos5420_power *power =
(struct exynos5420_power *)samsung_get_base_power();
if (enable) {
/* Enabling USBDEV_PHY */
setbits_le32(&power->usbdev_phy_control,
POWER_USB_DRD_PHY_CTRL_EN);
setbits_le32(&power->usbdev1_phy_control,
POWER_USB_DRD_PHY_CTRL_EN);
} else {
/* Disabling USBDEV_PHY */
clrbits_le32(&power->usbdev_phy_control,
POWER_USB_DRD_PHY_CTRL_EN);
clrbits_le32(&power->usbdev1_phy_control,
POWER_USB_DRD_PHY_CTRL_EN);
}
}
void set_usbdrd_phy_ctrl(unsigned int enable)
{
if (cpu_is_exynos5()) {
if (proid_is_exynos5420() || proid_is_exynos5422())
exynos5420_set_usbdev_phy_ctrl(enable);
else
exynos5_set_usbdrd_phy_ctrl(enable);
}
}
static void exynos5_dp_phy_control(unsigned int enable)
{
unsigned int cfg;
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
cfg = readl(&power->dptx_phy_control);
if (enable)
cfg |= EXYNOS_DP_PHY_ENABLE;
else
cfg &= ~EXYNOS_DP_PHY_ENABLE;
writel(cfg, &power->dptx_phy_control);
}
void exynos_dp_phy_ctrl(unsigned int enable)
{
if (cpu_is_exynos5())
exynos5_dp_phy_control(enable);
}
static void exynos5_set_ps_hold_ctrl(void)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
/* Set PS-Hold high */
setbits_le32(&power->ps_hold_control,
EXYNOS_PS_HOLD_CONTROL_DATA_HIGH);
}
/*
* Set ps_hold data driving value high
* This enables the machine to stay powered on
* after the initial power-on condition goes away
* (e.g. power button).
*/
void set_ps_hold_ctrl(void)
{
if (cpu_is_exynos5())
exynos5_set_ps_hold_ctrl();
}
static void exynos5_set_xclkout(void)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
/* use xxti for xclk out */
clrsetbits_le32(&power->pmu_debug, PMU_DEBUG_CLKOUT_SEL_MASK,
PMU_DEBUG_XXTI);
}
void set_xclkout(void)
{
if (cpu_is_exynos5())
exynos5_set_xclkout();
}
/* Enables hardware tripping to power off the system when TMU fails */
void set_hw_thermal_trip(void)
{
if (cpu_is_exynos5()) {
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
/* PS_HOLD_CONTROL register ENABLE_HW_TRIP bit*/
setbits_le32(&power->ps_hold_control, POWER_ENABLE_HW_TRIP);
}
}
static uint32_t exynos5_get_reset_status(void)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
return power->inform1;
}
static uint32_t exynos4_get_reset_status(void)
{
struct exynos4_power *power =
(struct exynos4_power *)samsung_get_base_power();
return power->inform1;
}
uint32_t get_reset_status(void)
{
if (cpu_is_exynos5())
return exynos5_get_reset_status();
else
return exynos4_get_reset_status();
}
static void exynos5_power_exit_wakeup(void)
{
struct exynos5_power *power =
(struct exynos5_power *)samsung_get_base_power();
typedef void (*resume_func)(void);
((resume_func)power->inform0)();
}
static void exynos4_power_exit_wakeup(void)
{
struct exynos4_power *power =
(struct exynos4_power *)samsung_get_base_power();
typedef void (*resume_func)(void);
((resume_func)power->inform0)();
}
void power_exit_wakeup(void)
{
if (cpu_is_exynos5())
exynos5_power_exit_wakeup();
else
exynos4_power_exit_wakeup();
}
unsigned int get_boot_mode(void)
{
unsigned int om_pin = samsung_get_base_power();
return readl(om_pin) & OM_PIN_MASK;
}