2 * Copyright (C) 2012 Samsung Electronics
3 * Donghwa Lee <dh09.lee@samsung.com>
5 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/arch/power.h>
12 static void exynos4_mipi_phy_control(unsigned int dev_index,
15 struct exynos4_power *pmu =
16 (struct exynos4_power *)samsung_get_base_power();
17 unsigned int addr, cfg = 0;
20 addr = (unsigned int)&pmu->mipi_phy0_control;
22 addr = (unsigned int)&pmu->mipi_phy1_control;
27 cfg |= (EXYNOS_MIPI_PHY_MRESETN | EXYNOS_MIPI_PHY_ENABLE);
29 cfg &= ~(EXYNOS_MIPI_PHY_MRESETN | EXYNOS_MIPI_PHY_ENABLE);
34 void set_mipi_phy_ctrl(unsigned int dev_index, unsigned int enable)
37 exynos4_mipi_phy_control(dev_index, enable);
40 void exynos5_set_usbhost_phy_ctrl(unsigned int enable)
42 struct exynos5_power *power =
43 (struct exynos5_power *)samsung_get_base_power();
46 /* Enabling USBHOST_PHY */
47 setbits_le32(&power->usbhost_phy_control,
48 POWER_USB_HOST_PHY_CTRL_EN);
50 /* Disabling USBHOST_PHY */
51 clrbits_le32(&power->usbhost_phy_control,
52 POWER_USB_HOST_PHY_CTRL_EN);
56 void set_usbhost_phy_ctrl(unsigned int enable)
59 exynos5_set_usbhost_phy_ctrl(enable);
62 static void exynos5_dp_phy_control(unsigned int enable)
65 struct exynos5_power *power =
66 (struct exynos5_power *)samsung_get_base_power();
68 cfg = readl(&power->dptx_phy_control);
70 cfg |= EXYNOS_DP_PHY_ENABLE;
72 cfg &= ~EXYNOS_DP_PHY_ENABLE;
74 writel(cfg, &power->dptx_phy_control);
77 void set_dp_phy_ctrl(unsigned int enable)
80 exynos5_dp_phy_control(enable);
83 static void exynos5_set_ps_hold_ctrl(void)
85 struct exynos5_power *power =
86 (struct exynos5_power *)samsung_get_base_power();
88 /* Set PS-Hold high */
89 setbits_le32(&power->ps_hold_control,
90 EXYNOS_PS_HOLD_CONTROL_DATA_HIGH);
93 void set_ps_hold_ctrl(void)
96 exynos5_set_ps_hold_ctrl();
100 static void exynos5_set_xclkout(void)
102 struct exynos5_power *power =
103 (struct exynos5_power *)samsung_get_base_power();
105 /* use xxti for xclk out */
106 clrsetbits_le32(&power->pmu_debug, PMU_DEBUG_CLKOUT_SEL_MASK,
110 void set_xclkout(void)
112 if (cpu_is_exynos5())
113 exynos5_set_xclkout();
116 /* Enables hardware tripping to power off the system when TMU fails */
117 void set_hw_thermal_trip(void)
119 if (cpu_is_exynos5()) {
120 struct exynos5_power *power =
121 (struct exynos5_power *)samsung_get_base_power();
123 /* PS_HOLD_CONTROL register ENABLE_HW_TRIP bit*/
124 setbits_le32(&power->ps_hold_control, POWER_ENABLE_HW_TRIP);
128 static uint32_t exynos5_get_reset_status(void)
130 struct exynos5_power *power =
131 (struct exynos5_power *)samsung_get_base_power();
133 return power->inform1;
136 static uint32_t exynos4_get_reset_status(void)
138 struct exynos4_power *power =
139 (struct exynos4_power *)samsung_get_base_power();
141 return power->inform1;
144 uint32_t get_reset_status(void)
146 if (cpu_is_exynos5())
147 return exynos5_get_reset_status();
149 return exynos4_get_reset_status();
152 static void exynos5_power_exit_wakeup(void)
154 struct exynos5_power *power =
155 (struct exynos5_power *)samsung_get_base_power();
156 typedef void (*resume_func)(void);
158 ((resume_func)power->inform0)();
161 static void exynos4_power_exit_wakeup(void)
163 struct exynos4_power *power =
164 (struct exynos4_power *)samsung_get_base_power();
165 typedef void (*resume_func)(void);
167 ((resume_func)power->inform0)();
170 void power_exit_wakeup(void)
172 if (cpu_is_exynos5())
173 exynos5_power_exit_wakeup();
175 exynos4_power_exit_wakeup();