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gerrit-public.fairphone.software / kernel / msm-4.9 / 03a1eabc3f54469abd4f1784182851b2e29630cc / . / drivers / soc / samsung / exynos5420-pmu.c
blob: 3f2c64180ef8262e5b631681c2523c9bffda9b2a [file] [log] [blame]
Pankaj Dubey92c4bf02015-12-18 09:02:15 +0530[diff] [blame]1/*
2 * Copyright (c) 2011-2015 Samsung Electronics Co., Ltd.
3 * http://www.samsung.com/
4 *
5 * EXYNOS5420 - CPU PMU (Power Management Unit) support
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/pm.h>
13#include <linux/soc/samsung/exynos-regs-pmu.h>
14#include <linux/soc/samsung/exynos-pmu.h>
15
16#include <asm/cputype.h>
17
18#include "exynos-pmu.h"
19
Krzysztof Kozlowskiaec63412016-07-06 09:03:46 +0200[diff] [blame]20static const struct exynos_pmu_conf exynos5420_pmu_config[] = {
Pankaj Dubey92c4bf02015-12-18 09:02:15 +0530[diff] [blame]21 /* { .offset = offset, .val = { AFTR, LPA, SLEEP } */
22 { EXYNOS5_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
23 { EXYNOS5_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
24 { EXYNOS5_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
25 { EXYNOS5_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
26 { EXYNOS5_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
27 { EXYNOS5_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
28 { EXYNOS5420_ARM_CORE2_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
29 { EXYNOS5420_DIS_IRQ_ARM_CORE2_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
30 { EXYNOS5420_DIS_IRQ_ARM_CORE2_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
31 { EXYNOS5420_ARM_CORE3_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
32 { EXYNOS5420_DIS_IRQ_ARM_CORE3_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
33 { EXYNOS5420_DIS_IRQ_ARM_CORE3_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
34 { EXYNOS5420_KFC_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
35 { EXYNOS5420_DIS_IRQ_KFC_CORE0_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
36 { EXYNOS5420_DIS_IRQ_KFC_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
37 { EXYNOS5420_KFC_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
38 { EXYNOS5420_DIS_IRQ_KFC_CORE1_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
39 { EXYNOS5420_DIS_IRQ_KFC_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
40 { EXYNOS5420_KFC_CORE2_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
41 { EXYNOS5420_DIS_IRQ_KFC_CORE2_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
42 { EXYNOS5420_DIS_IRQ_KFC_CORE2_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
43 { EXYNOS5420_KFC_CORE3_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
44 { EXYNOS5420_DIS_IRQ_KFC_CORE3_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
45 { EXYNOS5420_DIS_IRQ_KFC_CORE3_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
46 { EXYNOS5_ISP_ARM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
47 { EXYNOS5_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
48 { EXYNOS5_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
49 { EXYNOS5420_ARM_COMMON_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
50 { EXYNOS5420_KFC_COMMON_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
51 { EXYNOS5_ARM_L2_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
52 { EXYNOS5420_KFC_L2_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
53 { EXYNOS5_CMU_ACLKSTOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
54 { EXYNOS5_CMU_SCLKSTOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
55 { EXYNOS5_CMU_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
56 { EXYNOS5_CMU_ACLKSTOP_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
57 { EXYNOS5_CMU_SCLKSTOP_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
58 { EXYNOS5_CMU_RESET_SYSMEM_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
59 { EXYNOS5_DRAM_FREQ_DOWN_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
60 { EXYNOS5_DDRPHY_DLLOFF_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
61 { EXYNOS5_DDRPHY_DLLLOCK_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
62 { EXYNOS5_APLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
63 { EXYNOS5_MPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
64 { EXYNOS5_VPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
65 { EXYNOS5_EPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
66 { EXYNOS5_BPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
67 { EXYNOS5_CPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
68 { EXYNOS5420_DPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
69 { EXYNOS5420_IPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
70 { EXYNOS5420_KPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
71 { EXYNOS5_MPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
72 { EXYNOS5_BPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
73 { EXYNOS5420_RPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
74 { EXYNOS5420_SPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
75 { EXYNOS5_TOP_BUS_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
76 { EXYNOS5_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
77 { EXYNOS5_TOP_PWR_SYS_PWR_REG, { 0x3, 0x3, 0x0} },
78 { EXYNOS5_TOP_BUS_SYSMEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
79 { EXYNOS5_TOP_RETENTION_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
80 { EXYNOS5_TOP_PWR_SYSMEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
81 { EXYNOS5_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
82 { EXYNOS5_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
83 { EXYNOS5_LOGIC_RESET_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
84 { EXYNOS5_OSCCLK_GATE_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
85 { EXYNOS5420_INTRAM_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x3} },
86 { EXYNOS5420_INTROM_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x3} },
87 { EXYNOS5_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
88 { EXYNOS5_PAD_RETENTION_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
89 { EXYNOS5420_PAD_RETENTION_JTAG_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
90 { EXYNOS5420_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
91 { EXYNOS5420_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
92 { EXYNOS5420_PAD_RETENTION_MMC0_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
93 { EXYNOS5420_PAD_RETENTION_MMC1_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
94 { EXYNOS5420_PAD_RETENTION_MMC2_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
95 { EXYNOS5420_PAD_RETENTION_HSI_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
96 { EXYNOS5420_PAD_RETENTION_EBIA_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
97 { EXYNOS5420_PAD_RETENTION_EBIB_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
98 { EXYNOS5420_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
99 { EXYNOS5420_PAD_RETENTION_DRAM_COREBLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
100 { EXYNOS5_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
101 { EXYNOS5_PAD_ISOLATION_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
102 { EXYNOS5_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
103 { EXYNOS5_XUSBXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
104 { EXYNOS5_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
105 { EXYNOS5_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
106 { EXYNOS5_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
107 { EXYNOS5_GPIO_MODE_SYSMEM_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
108 { EXYNOS5_GPIO_MODE_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
109 { EXYNOS5_TOP_ASB_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
110 { EXYNOS5_TOP_ASB_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
111 { EXYNOS5_GSCL_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
112 { EXYNOS5_ISP_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
113 { EXYNOS5_MFC_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
114 { EXYNOS5_G3D_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
115 { EXYNOS5420_DISP1_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
116 { EXYNOS5420_MAU_SYS_PWR_REG, { 0x7, 0x7, 0x0} },
117 { EXYNOS5420_G2D_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
118 { EXYNOS5420_MSC_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
119 { EXYNOS5420_FSYS_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
120 { EXYNOS5420_FSYS2_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
121 { EXYNOS5420_PSGEN_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
122 { EXYNOS5420_PERIC_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
123 { EXYNOS5420_WCORE_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
124 { EXYNOS5_CMU_CLKSTOP_GSCL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
125 { EXYNOS5_CMU_CLKSTOP_ISP_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
126 { EXYNOS5_CMU_CLKSTOP_MFC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
127 { EXYNOS5_CMU_CLKSTOP_G3D_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
128 { EXYNOS5420_CMU_CLKSTOP_DISP1_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
129 { EXYNOS5420_CMU_CLKSTOP_MAU_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
130 { EXYNOS5420_CMU_CLKSTOP_G2D_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
131 { EXYNOS5420_CMU_CLKSTOP_MSC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
132 { EXYNOS5420_CMU_CLKSTOP_FSYS_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
133 { EXYNOS5420_CMU_CLKSTOP_PSGEN_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
134 { EXYNOS5420_CMU_CLKSTOP_PERIC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
135 { EXYNOS5420_CMU_CLKSTOP_WCORE_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
136 { EXYNOS5_CMU_SYSCLK_GSCL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
137 { EXYNOS5_CMU_SYSCLK_ISP_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
138 { EXYNOS5_CMU_SYSCLK_MFC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
139 { EXYNOS5_CMU_SYSCLK_G3D_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
140 { EXYNOS5420_CMU_SYSCLK_DISP1_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
141 { EXYNOS5420_CMU_SYSCLK_MAU_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
142 { EXYNOS5420_CMU_SYSCLK_G2D_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
143 { EXYNOS5420_CMU_SYSCLK_MSC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
144 { EXYNOS5420_CMU_SYSCLK_FSYS_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
145 { EXYNOS5420_CMU_SYSCLK_FSYS2_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
146 { EXYNOS5420_CMU_SYSCLK_PSGEN_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
147 { EXYNOS5420_CMU_SYSCLK_PERIC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
148 { EXYNOS5420_CMU_SYSCLK_WCORE_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
149 { EXYNOS5420_CMU_RESET_FSYS2_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
150 { EXYNOS5420_CMU_RESET_PSGEN_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
151 { EXYNOS5420_CMU_RESET_PERIC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
152 { EXYNOS5420_CMU_RESET_WCORE_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
153 { EXYNOS5_CMU_RESET_GSCL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
154 { EXYNOS5_CMU_RESET_ISP_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
155 { EXYNOS5_CMU_RESET_MFC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
156 { EXYNOS5_CMU_RESET_G3D_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
157 { EXYNOS5420_CMU_RESET_DISP1_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
158 { EXYNOS5420_CMU_RESET_MAU_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
159 { EXYNOS5420_CMU_RESET_G2D_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
160 { EXYNOS5420_CMU_RESET_MSC_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
161 { EXYNOS5420_CMU_RESET_FSYS_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
162 { PMU_TABLE_END,},
163};
164
165static unsigned int const exynos5420_list_disable_pmu_reg[] = {
166 EXYNOS5_CMU_CLKSTOP_GSCL_SYS_PWR_REG,
167 EXYNOS5_CMU_CLKSTOP_ISP_SYS_PWR_REG,
168 EXYNOS5_CMU_CLKSTOP_G3D_SYS_PWR_REG,
169 EXYNOS5420_CMU_CLKSTOP_DISP1_SYS_PWR_REG,
170 EXYNOS5420_CMU_CLKSTOP_MAU_SYS_PWR_REG,
171 EXYNOS5420_CMU_CLKSTOP_G2D_SYS_PWR_REG,
172 EXYNOS5420_CMU_CLKSTOP_MSC_SYS_PWR_REG,
173 EXYNOS5420_CMU_CLKSTOP_FSYS_SYS_PWR_REG,
174 EXYNOS5420_CMU_CLKSTOP_PSGEN_SYS_PWR_REG,
175 EXYNOS5420_CMU_CLKSTOP_PERIC_SYS_PWR_REG,
176 EXYNOS5420_CMU_CLKSTOP_WCORE_SYS_PWR_REG,
177 EXYNOS5_CMU_SYSCLK_GSCL_SYS_PWR_REG,
178 EXYNOS5_CMU_SYSCLK_ISP_SYS_PWR_REG,
179 EXYNOS5_CMU_SYSCLK_G3D_SYS_PWR_REG,
180 EXYNOS5420_CMU_SYSCLK_DISP1_SYS_PWR_REG,
181 EXYNOS5420_CMU_SYSCLK_MAU_SYS_PWR_REG,
182 EXYNOS5420_CMU_SYSCLK_G2D_SYS_PWR_REG,
183 EXYNOS5420_CMU_SYSCLK_MSC_SYS_PWR_REG,
184 EXYNOS5420_CMU_SYSCLK_FSYS_SYS_PWR_REG,
185 EXYNOS5420_CMU_SYSCLK_FSYS2_SYS_PWR_REG,
186 EXYNOS5420_CMU_SYSCLK_PSGEN_SYS_PWR_REG,
187 EXYNOS5420_CMU_SYSCLK_PERIC_SYS_PWR_REG,
188 EXYNOS5420_CMU_SYSCLK_WCORE_SYS_PWR_REG,
189 EXYNOS5420_CMU_RESET_FSYS2_SYS_PWR_REG,
190 EXYNOS5420_CMU_RESET_PSGEN_SYS_PWR_REG,
191 EXYNOS5420_CMU_RESET_PERIC_SYS_PWR_REG,
192 EXYNOS5420_CMU_RESET_WCORE_SYS_PWR_REG,
193 EXYNOS5_CMU_RESET_GSCL_SYS_PWR_REG,
194 EXYNOS5_CMU_RESET_ISP_SYS_PWR_REG,
195 EXYNOS5_CMU_RESET_G3D_SYS_PWR_REG,
196 EXYNOS5420_CMU_RESET_DISP1_SYS_PWR_REG,
197 EXYNOS5420_CMU_RESET_MAU_SYS_PWR_REG,
198 EXYNOS5420_CMU_RESET_G2D_SYS_PWR_REG,
199 EXYNOS5420_CMU_RESET_MSC_SYS_PWR_REG,
200 EXYNOS5420_CMU_RESET_FSYS_SYS_PWR_REG,
201};
202
203static void exynos5420_powerdown_conf(enum sys_powerdown mode)
204{
205 u32 this_cluster;
206
207 this_cluster = MPIDR_AFFINITY_LEVEL(read_cpuid_mpidr(), 1);
208
209 /*
210 * set the cluster id to IROM register to ensure that we wake
211 * up with the current cluster.
212 */
213 pmu_raw_writel(this_cluster, EXYNOS_IROM_DATA2);
214}
215
216static void exynos5420_pmu_init(void)
217{
218 unsigned int value;
219 int i;
220
221 /*
222 * Set the CMU_RESET, CMU_SYSCLK and CMU_CLKSTOP registers
223 * for local power blocks to Low initially as per Table 8-4:
224 * "System-Level Power-Down Configuration Registers".
225 */
226 for (i = 0; i < ARRAY_SIZE(exynos5420_list_disable_pmu_reg); i++)
227 pmu_raw_writel(0, exynos5420_list_disable_pmu_reg[i]);
228
229 /* Enable USE_STANDBY_WFI for all CORE */
230 pmu_raw_writel(EXYNOS5420_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION);
231
232 value = pmu_raw_readl(EXYNOS_L2_OPTION(0));
233 value &= ~EXYNOS5_USE_RETENTION;
234 pmu_raw_writel(value, EXYNOS_L2_OPTION(0));
235
236 value = pmu_raw_readl(EXYNOS_L2_OPTION(1));
237 value &= ~EXYNOS5_USE_RETENTION;
238 pmu_raw_writel(value, EXYNOS_L2_OPTION(1));
239
240 /*
241 * If L2_COMMON is turned off, clocks related to ATB async
242 * bridge are gated. Thus, when ISP power is gated, LPI
243 * may get stuck.
244 */
245 value = pmu_raw_readl(EXYNOS5420_LPI_MASK);
246 value |= EXYNOS5420_ATB_ISP_ARM;
247 pmu_raw_writel(value, EXYNOS5420_LPI_MASK);
248
249 value = pmu_raw_readl(EXYNOS5420_LPI_MASK1);
250 value |= EXYNOS5420_ATB_KFC;
251 pmu_raw_writel(value, EXYNOS5420_LPI_MASK1);
252
253 /* Prevent issue of new bus request from L2 memory */
254 value = pmu_raw_readl(EXYNOS5420_ARM_COMMON_OPTION);
255 value |= EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN;
256 pmu_raw_writel(value, EXYNOS5420_ARM_COMMON_OPTION);
257
258 value = pmu_raw_readl(EXYNOS5420_KFC_COMMON_OPTION);
259 value |= EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN;
260 pmu_raw_writel(value, EXYNOS5420_KFC_COMMON_OPTION);
261
262 /* This setting is to reduce suspend/resume time */
263 pmu_raw_writel(DUR_WAIT_RESET, EXYNOS5420_LOGIC_RESET_DURATION3);
264
265 /* Serialized CPU wakeup of Eagle */
266 pmu_raw_writel(SPREAD_ENABLE, EXYNOS5420_ARM_INTR_SPREAD_ENABLE);
267
268 pmu_raw_writel(SPREAD_USE_STANDWFI,
269 EXYNOS5420_ARM_INTR_SPREAD_USE_STANDBYWFI);
270
271 pmu_raw_writel(0x1, EXYNOS5420_UP_SCHEDULER);
272
273 pr_info("EXYNOS5420 PMU initialized\n");
274}
275
276const struct exynos_pmu_data exynos5420_pmu_data = {
277 .pmu_config = exynos5420_pmu_config,
278 .pmu_init = exynos5420_pmu_init,
279 .powerdown_conf = exynos5420_powerdown_conf,
280};