1 /* linux/arch/arm/mach-exynos4/pmu.c
2 *
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * EXYNOS4210 - CPU PMU(Power Management Unit) support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/io.h>
14 #include <linux/kernel.h>
15
16 #include <mach/regs-clock.h>
17 #include <mach/pmu.h>
18
19 static struct exynos4_pmu_conf *exynos4_pmu_config;
20
21 static struct exynos4_pmu_conf exynos4210_pmu_config[] = {
22 /* { .reg = address, .val = { AFTR, LPA, SLEEP } */
23 { S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } },
24 { S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } },
25 { S5P_DIS_IRQ_CENTRAL0, { 0x0, 0x0, 0x0 } },
26 { S5P_ARM_CORE1_LOWPWR, { 0x0, 0x0, 0x2 } },
27 { S5P_DIS_IRQ_CORE1, { 0x0, 0x0, 0x0 } },
28 { S5P_DIS_IRQ_CENTRAL1, { 0x0, 0x0, 0x0 } },
29 { S5P_ARM_COMMON_LOWPWR, { 0x0, 0x0, 0x2 } },
30 { S5P_L2_0_LOWPWR, { 0x2, 0x2, 0x3 } },
31 { S5P_L2_1_LOWPWR, { 0x2, 0x2, 0x3 } },
32 { S5P_CMU_ACLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
33 { S5P_CMU_SCLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
34 { S5P_CMU_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
35 { S5P_APLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
36 { S5P_MPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
37 { S5P_VPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
38 { S5P_EPLL_SYSCLK_LOWPWR, { 0x1, 0x1, 0x0 } },
39 { S5P_CMU_CLKSTOP_GPS_ALIVE_LOWPWR, { 0x1, 0x1, 0x0 } },
40 { S5P_CMU_RESET_GPSALIVE_LOWPWR, { 0x1, 0x1, 0x0 } },
41 { S5P_CMU_CLKSTOP_CAM_LOWPWR, { 0x1, 0x1, 0x0 } },
42 { S5P_CMU_CLKSTOP_TV_LOWPWR, { 0x1, 0x1, 0x0 } },
43 { S5P_CMU_CLKSTOP_MFC_LOWPWR, { 0x1, 0x1, 0x0 } },
44 { S5P_CMU_CLKSTOP_G3D_LOWPWR, { 0x1, 0x1, 0x0 } },
45 { S5P_CMU_CLKSTOP_LCD0_LOWPWR, { 0x1, 0x1, 0x0 } },
46 { S5P_CMU_CLKSTOP_LCD1_LOWPWR, { 0x1, 0x1, 0x0 } },
47 { S5P_CMU_CLKSTOP_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
48 { S5P_CMU_CLKSTOP_GPS_LOWPWR, { 0x1, 0x1, 0x0 } },
49 { S5P_CMU_RESET_CAM_LOWPWR, { 0x1, 0x1, 0x0 } },
50 { S5P_CMU_RESET_TV_LOWPWR, { 0x1, 0x1, 0x0 } },
51 { S5P_CMU_RESET_MFC_LOWPWR, { 0x1, 0x1, 0x0 } },
52 { S5P_CMU_RESET_G3D_LOWPWR, { 0x1, 0x1, 0x0 } },
53 { S5P_CMU_RESET_LCD0_LOWPWR, { 0x1, 0x1, 0x0 } },
54 { S5P_CMU_RESET_LCD1_LOWPWR, { 0x1, 0x1, 0x0 } },
55 { S5P_CMU_RESET_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
56 { S5P_CMU_RESET_GPS_LOWPWR, { 0x1, 0x1, 0x0 } },
57 { S5P_TOP_BUS_LOWPWR, { 0x3, 0x0, 0x0 } },
58 { S5P_TOP_RETENTION_LOWPWR, { 0x1, 0x0, 0x1 } },
59 { S5P_TOP_PWR_LOWPWR, { 0x3, 0x0, 0x3 } },
60 { S5P_LOGIC_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
61 { S5P_ONENAND_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
62 { S5P_MODIMIF_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
63 { S5P_G2D_ACP_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
64 { S5P_USBOTG_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
65 { S5P_HSMMC_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
66 { S5P_CSSYS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
67 { S5P_SECSS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
68 { S5P_PCIE_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
69 { S5P_SATA_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
70 { S5P_PAD_RETENTION_DRAM_LOWPWR, { 0x1, 0x0, 0x0 } },
71 { S5P_PAD_RETENTION_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
72 { S5P_PAD_RETENTION_GPIO_LOWPWR, { 0x1, 0x0, 0x0 } },
73 { S5P_PAD_RETENTION_UART_LOWPWR, { 0x1, 0x0, 0x0 } },
74 { S5P_PAD_RETENTION_MMCA_LOWPWR, { 0x1, 0x0, 0x0 } },
75 { S5P_PAD_RETENTION_MMCB_LOWPWR, { 0x1, 0x0, 0x0 } },
76 { S5P_PAD_RETENTION_EBIA_LOWPWR, { 0x1, 0x0, 0x0 } },
77 { S5P_PAD_RETENTION_EBIB_LOWPWR, { 0x1, 0x0, 0x0 } },
78 { S5P_PAD_RETENTION_ISOLATION_LOWPWR, { 0x1, 0x0, 0x0 } },
79 { S5P_PAD_RETENTION_ALV_SEL_LOWPWR, { 0x1, 0x0, 0x0 } },
80 { S5P_XUSBXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
81 { S5P_XXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
82 { S5P_EXT_REGULATOR_LOWPWR, { 0x1, 0x1, 0x0 } },
83 { S5P_GPIO_MODE_LOWPWR, { 0x1, 0x0, 0x0 } },
84 { S5P_GPIO_MODE_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
85 { S5P_CAM_LOWPWR, { 0x7, 0x0, 0x0 } },
86 { S5P_TV_LOWPWR, { 0x7, 0x0, 0x0 } },
87 { S5P_MFC_LOWPWR, { 0x7, 0x0, 0x0 } },
88 { S5P_G3D_LOWPWR, { 0x7, 0x0, 0x0 } },
89 { S5P_LCD0_LOWPWR, { 0x7, 0x0, 0x0 } },
90 { S5P_LCD1_LOWPWR, { 0x7, 0x0, 0x0 } },
91 { S5P_MAUDIO_LOWPWR, { 0x7, 0x7, 0x0 } },
92 { S5P_GPS_LOWPWR, { 0x7, 0x0, 0x0 } },
93 { S5P_GPS_ALIVE_LOWPWR, { 0x7, 0x0, 0x0 } },
94 { PMU_TABLE_END,},
95 };
96
97 static struct exynos4_pmu_conf exynos4212_pmu_config[] = {
98 { S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } },
99 { S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } },
100 { S5P_DIS_IRQ_CENTRAL0, { 0x0, 0x0, 0x0 } },
101 { S5P_ARM_CORE1_LOWPWR, { 0x0, 0x0, 0x2 } },
102 { S5P_DIS_IRQ_CORE1, { 0x0, 0x0, 0x0 } },
103 { S5P_DIS_IRQ_CENTRAL1, { 0x0, 0x0, 0x0 } },
104 { S5P_ISP_ARM_LOWPWR, { 0x1, 0x0, 0x0 } },
105 { S5P_DIS_IRQ_ISP_ARM_LOCAL_LOWPWR, { 0x0, 0x0, 0x0 } },
106 { S5P_DIS_IRQ_ISP_ARM_CENTRAL_LOWPWR, { 0x0, 0x0, 0x0 } },
107 { S5P_ARM_COMMON_LOWPWR, { 0x0, 0x0, 0x2 } },
108 { S5P_L2_0_LOWPWR, { 0x0, 0x0, 0x3 } },
109 /* XXX_OPTION register should be set other field */
110 { S5P_ARM_L2_0_OPTION, { 0x10, 0x10, 0x0 } },
111 { S5P_L2_1_LOWPWR, { 0x0, 0x0, 0x3 } },
112 { S5P_ARM_L2_1_OPTION, { 0x10, 0x10, 0x0 } },
113 { S5P_CMU_ACLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
114 { S5P_CMU_SCLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
115 { S5P_CMU_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
116 { S5P_DRAM_FREQ_DOWN_LOWPWR, { 0x1, 0x1, 0x1 } },
117 { S5P_DDRPHY_DLLOFF_LOWPWR, { 0x1, 0x1, 0x1 } },
118 { S5P_LPDDR_PHY_DLL_LOCK_LOWPWR, { 0x1, 0x1, 0x1 } },
119 { S5P_CMU_ACLKSTOP_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
120 { S5P_CMU_SCLKSTOP_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
121 { S5P_CMU_RESET_COREBLK_LOWPWR, { 0x1, 0x1, 0x0 } },
122 { S5P_APLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
123 { S5P_MPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
124 { S5P_VPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
125 { S5P_EPLL_SYSCLK_LOWPWR, { 0x1, 0x1, 0x0 } },
126 { S5P_MPLLUSER_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
127 { S5P_CMU_CLKSTOP_GPS_ALIVE_LOWPWR, { 0x1, 0x0, 0x0 } },
128 { S5P_CMU_RESET_GPSALIVE_LOWPWR, { 0x1, 0x0, 0x0 } },
129 { S5P_CMU_CLKSTOP_CAM_LOWPWR, { 0x1, 0x0, 0x0 } },
130 { S5P_CMU_CLKSTOP_TV_LOWPWR, { 0x1, 0x0, 0x0 } },
131 { S5P_CMU_CLKSTOP_MFC_LOWPWR, { 0x1, 0x0, 0x0 } },
132 { S5P_CMU_CLKSTOP_G3D_LOWPWR, { 0x1, 0x0, 0x0 } },
133 { S5P_CMU_CLKSTOP_LCD0_LOWPWR, { 0x1, 0x0, 0x0 } },
134 { S5P_CMU_CLKSTOP_ISP_LOWPWR, { 0x1, 0x0, 0x0 } },
135 { S5P_CMU_CLKSTOP_MAUDIO_LOWPWR, { 0x1, 0x0, 0x0 } },
136 { S5P_CMU_CLKSTOP_GPS_LOWPWR, { 0x1, 0x0, 0x0 } },
137 { S5P_CMU_RESET_CAM_LOWPWR, { 0x1, 0x0, 0x0 } },
138 { S5P_CMU_RESET_TV_LOWPWR, { 0x1, 0x0, 0x0 } },
139 { S5P_CMU_RESET_MFC_LOWPWR, { 0x1, 0x0, 0x0 } },
140 { S5P_CMU_RESET_G3D_LOWPWR, { 0x1, 0x0, 0x0 } },
141 { S5P_CMU_RESET_LCD0_LOWPWR, { 0x1, 0x0, 0x0 } },
142 { S5P_CMU_RESET_ISP_LOWPWR, { 0x1, 0x0, 0x0 } },
143 { S5P_CMU_RESET_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
144 { S5P_CMU_RESET_GPS_LOWPWR, { 0x1, 0x0, 0x0 } },
145 { S5P_TOP_BUS_LOWPWR, { 0x3, 0x0, 0x0 } },
146 { S5P_TOP_RETENTION_LOWPWR, { 0x1, 0x0, 0x1 } },
147 { S5P_TOP_PWR_LOWPWR, { 0x3, 0x0, 0x3 } },
148 { S5P_TOP_BUS_COREBLK_LOWPWR, { 0x3, 0x0, 0x0 } },
149 { S5P_TOP_RETENTION_COREBLK_LOWPWR, { 0x1, 0x0, 0x1 } },
150 { S5P_TOP_PWR_COREBLK_LOWPWR, { 0x3, 0x0, 0x3 } },
151 { S5P_LOGIC_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
152 { S5P_OSCCLK_GATE_LOWPWR, { 0x1, 0x0, 0x1 } },
153 { S5P_LOGIC_RESET_COREBLK_LOWPWR, { 0x1, 0x1, 0x0 } },
154 { S5P_OSCCLK_GATE_COREBLK_LOWPWR, { 0x1, 0x0, 0x1 } },
155 { S5P_ONENAND_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
156 { S5P_ONENAND_MEM_OPTION, { 0x10, 0x10, 0x0 } },
157 { S5P_HSI_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
158 { S5P_HSI_MEM_OPTION, { 0x10, 0x10, 0x0 } },
159 { S5P_G2D_ACP_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
160 { S5P_G2D_ACP_MEM_OPTION, { 0x10, 0x10, 0x0 } },
161 { S5P_USBOTG_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
162 { S5P_USBOTG_MEM_OPTION, { 0x10, 0x10, 0x0 } },
163 { S5P_HSMMC_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
164 { S5P_HSMMC_MEM_OPTION, { 0x10, 0x10, 0x0 } },
165 { S5P_CSSYS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
166 { S5P_CSSYS_MEM_OPTION, { 0x10, 0x10, 0x0 } },
167 { S5P_SECSS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
168 { S5P_SECSS_MEM_OPTION, { 0x10, 0x10, 0x0 } },
169 { S5P_ROTATOR_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
170 { S5P_ROTATOR_MEM_OPTION, { 0x10, 0x10, 0x0 } },
171 { S5P_PAD_RETENTION_DRAM_LOWPWR, { 0x1, 0x0, 0x0 } },
172 { S5P_PAD_RETENTION_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
173 { S5P_PAD_RETENTION_GPIO_LOWPWR, { 0x1, 0x0, 0x0 } },
174 { S5P_PAD_RETENTION_UART_LOWPWR, { 0x1, 0x0, 0x0 } },
175 { S5P_PAD_RETENTION_MMCA_LOWPWR, { 0x1, 0x0, 0x0 } },
176 { S5P_PAD_RETENTION_MMCB_LOWPWR, { 0x1, 0x0, 0x0 } },
177 { S5P_PAD_RETENTION_EBIA_LOWPWR, { 0x1, 0x0, 0x0 } },
178 { S5P_PAD_RETENTION_EBIB_LOWPWR, { 0x1, 0x0, 0x0 } },
179 { S5P_PAD_RETENTION_GPIO_COREBLK_LOWPWR,{ 0x1, 0x0, 0x0 } },
180 { S5P_PAD_RETENTION_ISOLATION_LOWPWR, { 0x1, 0x0, 0x0 } },
181 { S5P_PAD_ISOLATION_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
182 { S5P_PAD_RETENTION_ALV_SEL_LOWPWR, { 0x1, 0x0, 0x0 } },
183 { S5P_XUSBXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
184 { S5P_XXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
185 { S5P_EXT_REGULATOR_LOWPWR, { 0x1, 0x1, 0x0 } },
186 { S5P_GPIO_MODE_LOWPWR, { 0x1, 0x0, 0x0 } },
187 { S5P_GPIO_MODE_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
188 { S5P_GPIO_MODE_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
189 { S5P_TOP_ASB_RESET_LOWPWR, { 0x1, 0x1, 0x1 } },
190 { S5P_TOP_ASB_ISOLATION_LOWPWR, { 0x1, 0x0, 0x1 } },
191 { S5P_CAM_LOWPWR, { 0x7, 0x0, 0x0 } },
192 { S5P_TV_LOWPWR, { 0x7, 0x0, 0x0 } },
193 { S5P_MFC_LOWPWR, { 0x7, 0x0, 0x0 } },
194 { S5P_G3D_LOWPWR, { 0x7, 0x0, 0x0 } },
195 { S5P_LCD0_LOWPWR, { 0x7, 0x0, 0x0 } },
196 { S5P_ISP_LOWPWR, { 0x7, 0x0, 0x0 } },
197 { S5P_MAUDIO_LOWPWR, { 0x7, 0x7, 0x0 } },
198 { S5P_GPS_LOWPWR, { 0x7, 0x0, 0x0 } },
199 { S5P_GPS_ALIVE_LOWPWR, { 0x7, 0x0, 0x0 } },
200 { S5P_CMU_SYSCLK_ISP_LOWPWR, { 0x1, 0x0, 0x0 } },
201 { S5P_CMU_SYSCLK_GPS_LOWPWR, { 0x1, 0x0, 0x0 } },
202 { PMU_TABLE_END,},
203 };
204
exynos4_sys_powerdown_conf(enum sys_powerdown mode)205 void exynos4_sys_powerdown_conf(enum sys_powerdown mode)
206 {
207 unsigned int i;
208
209 for (i = 0; (exynos4_pmu_config[i].reg != PMU_TABLE_END) ; i++)
210 __raw_writel(exynos4_pmu_config[i].val[mode],
211 exynos4_pmu_config[i].reg);
212 }
213
exynos4_pmu_init(void)214 static int __init exynos4_pmu_init(void)
215 {
216 exynos4_pmu_config = exynos4210_pmu_config;
217
218 if (soc_is_exynos4210()) {
219 exynos4_pmu_config = exynos4210_pmu_config;
220 pr_info("EXYNOS4210 PMU Initialize\n");
221 } else if (soc_is_exynos4212()) {
222 exynos4_pmu_config = exynos4212_pmu_config;
223 pr_info("EXYNOS4212 PMU Initialize\n");
224 } else {
225 pr_info("EXYNOS4: PMU not supported\n");
226 }
227
228 return 0;
229 }
230 arch_initcall(exynos4_pmu_init);
231