xref: /openbmc/linux/drivers/soc/bcm/brcmstb/pm/pm.h (revision 0b741b82)
1 /*
2  * Definitions for Broadcom STB power management / Always ON (AON) block
3  *
4  * Copyright © 2016-2017 Broadcom
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  */
15 
16 #ifndef __BRCMSTB_PM_H__
17 #define __BRCMSTB_PM_H__
18 
19 #define AON_CTRL_RESET_CTRL		0x00
20 #define AON_CTRL_PM_CTRL		0x04
21 #define AON_CTRL_PM_STATUS		0x08
22 #define AON_CTRL_PM_CPU_WAIT_COUNT	0x10
23 #define AON_CTRL_PM_INITIATE		0x88
24 #define AON_CTRL_HOST_MISC_CMDS		0x8c
25 #define AON_CTRL_SYSTEM_DATA_RAM_OFS	0x200
26 
27 /* MIPS PM constants */
28 /* MEMC0 offsets */
29 #define DDR40_PHY_CONTROL_REGS_0_PLL_STATUS	0x10
30 #define DDR40_PHY_CONTROL_REGS_0_STANDBY_CTRL	0xa4
31 
32 /* TIMER offsets */
33 #define TIMER_TIMER1_CTRL		0x0c
34 #define TIMER_TIMER1_STAT		0x1c
35 
36 /* TIMER defines */
37 #define RESET_TIMER			0x0
38 #define START_TIMER			0xbfffffff
39 #define TIMER_MASK			0x3fffffff
40 
41 /* PM_CTRL bitfield (Method #0) */
42 #define PM_FAST_PWRDOWN			(1 << 6)
43 #define PM_WARM_BOOT			(1 << 5)
44 #define PM_DEEP_STANDBY			(1 << 4)
45 #define PM_CPU_PWR			(1 << 3)
46 #define PM_USE_CPU_RDY			(1 << 2)
47 #define PM_PLL_PWRDOWN			(1 << 1)
48 #define PM_PWR_DOWN			(1 << 0)
49 
50 /* PM_CTRL bitfield (Method #1) */
51 #define PM_DPHY_STANDBY_CLEAR		(1 << 20)
52 #define PM_MIN_S3_WIDTH_TIMER_BYPASS	(1 << 7)
53 
54 #define PM_S2_COMMAND	(PM_PLL_PWRDOWN | PM_USE_CPU_RDY | PM_PWR_DOWN)
55 
56 /* Method 0 bitmasks */
57 #define PM_COLD_CONFIG	(PM_PLL_PWRDOWN | PM_DEEP_STANDBY)
58 #define PM_WARM_CONFIG	(PM_COLD_CONFIG | PM_USE_CPU_RDY | PM_WARM_BOOT)
59 
60 /* Method 1 bitmask */
61 #define M1_PM_WARM_CONFIG (PM_DPHY_STANDBY_CLEAR | \
62 			   PM_MIN_S3_WIDTH_TIMER_BYPASS | \
63 			   PM_WARM_BOOT | PM_DEEP_STANDBY | \
64 			   PM_PLL_PWRDOWN | PM_PWR_DOWN)
65 
66 #define M1_PM_COLD_CONFIG (PM_DPHY_STANDBY_CLEAR | \
67 			   PM_MIN_S3_WIDTH_TIMER_BYPASS | \
68 			   PM_DEEP_STANDBY | \
69 			   PM_PLL_PWRDOWN | PM_PWR_DOWN)
70 
71 #ifndef __ASSEMBLY__
72 
73 extern const unsigned long brcmstb_pm_do_s2_sz;
74 extern asmlinkage int brcmstb_pm_do_s2(void __iomem *aon_ctrl_base,
75 		void __iomem *ddr_phy_pll_status);
76 #endif
77 
78 #endif /* __BRCMSTB_PM_H__ */
79