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_set_usbdrd_phy_ctrl(unsigned int enable)
64 struct exynos5_power *power =
65 (struct exynos5_power *)samsung_get_base_power();
68 /* Enabling USBDRD_PHY */
69 setbits_le32(&power->usbdrd_phy_control,
70 POWER_USB_DRD_PHY_CTRL_EN);
72 /* Disabling USBDRD_PHY */
73 clrbits_le32(&power->usbdrd_phy_control,
74 POWER_USB_DRD_PHY_CTRL_EN);
78 void set_usbdrd_phy_ctrl(unsigned int enable)
81 exynos5_set_usbdrd_phy_ctrl(enable);
84 static void exynos5_dp_phy_control(unsigned int enable)
87 struct exynos5_power *power =
88 (struct exynos5_power *)samsung_get_base_power();
90 cfg = readl(&power->dptx_phy_control);
92 cfg |= EXYNOS_DP_PHY_ENABLE;
94 cfg &= ~EXYNOS_DP_PHY_ENABLE;
96 writel(cfg, &power->dptx_phy_control);
99 void set_dp_phy_ctrl(unsigned int enable)
101 if (cpu_is_exynos5())
102 exynos5_dp_phy_control(enable);
105 static void exynos5_set_ps_hold_ctrl(void)
107 struct exynos5_power *power =
108 (struct exynos5_power *)samsung_get_base_power();
110 /* Set PS-Hold high */
111 setbits_le32(&power->ps_hold_control,
112 EXYNOS_PS_HOLD_CONTROL_DATA_HIGH);
116 * Set ps_hold data driving value high
117 * This enables the machine to stay powered on
118 * after the initial power-on condition goes away
119 * (e.g. power button).
121 void set_ps_hold_ctrl(void)
123 if (cpu_is_exynos5())
124 exynos5_set_ps_hold_ctrl();
128 static void exynos5_set_xclkout(void)
130 struct exynos5_power *power =
131 (struct exynos5_power *)samsung_get_base_power();
133 /* use xxti for xclk out */
134 clrsetbits_le32(&power->pmu_debug, PMU_DEBUG_CLKOUT_SEL_MASK,
138 void set_xclkout(void)
140 if (cpu_is_exynos5())
141 exynos5_set_xclkout();
144 /* Enables hardware tripping to power off the system when TMU fails */
145 void set_hw_thermal_trip(void)
147 if (cpu_is_exynos5()) {
148 struct exynos5_power *power =
149 (struct exynos5_power *)samsung_get_base_power();
151 /* PS_HOLD_CONTROL register ENABLE_HW_TRIP bit*/
152 setbits_le32(&power->ps_hold_control, POWER_ENABLE_HW_TRIP);
156 static uint32_t exynos5_get_reset_status(void)
158 struct exynos5_power *power =
159 (struct exynos5_power *)samsung_get_base_power();
161 return power->inform1;
164 static uint32_t exynos4_get_reset_status(void)
166 struct exynos4_power *power =
167 (struct exynos4_power *)samsung_get_base_power();
169 return power->inform1;
172 uint32_t get_reset_status(void)
174 if (cpu_is_exynos5())
175 return exynos5_get_reset_status();
177 return exynos4_get_reset_status();
180 static void exynos5_power_exit_wakeup(void)
182 struct exynos5_power *power =
183 (struct exynos5_power *)samsung_get_base_power();
184 typedef void (*resume_func)(void);
186 ((resume_func)power->inform0)();
189 static void exynos4_power_exit_wakeup(void)
191 struct exynos4_power *power =
192 (struct exynos4_power *)samsung_get_base_power();
193 typedef void (*resume_func)(void);
195 ((resume_func)power->inform0)();
198 void power_exit_wakeup(void)
200 if (cpu_is_exynos5())
201 exynos5_power_exit_wakeup();
203 exynos4_power_exit_wakeup();