diff options
Diffstat (limited to 'arch/arm/mach-omap2/pm-debug.c')
-rw-r--r-- | arch/arm/mach-omap2/pm-debug.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c new file mode 100644 index 000000000000..6cc375a275be --- /dev/null +++ b/arch/arm/mach-omap2/pm-debug.c | |||
@@ -0,0 +1,152 @@ | |||
1 | /* | ||
2 | * OMAP Power Management debug routines | ||
3 | * | ||
4 | * Copyright (C) 2005 Texas Instruments, Inc. | ||
5 | * Copyright (C) 2006-2008 Nokia Corporation | ||
6 | * | ||
7 | * Written by: | ||
8 | * Richard Woodruff <r-woodruff2@ti.com> | ||
9 | * Tony Lindgren | ||
10 | * Juha Yrjola | ||
11 | * Amit Kucheria <amit.kucheria@nokia.com> | ||
12 | * Igor Stoppa <igor.stoppa@nokia.com> | ||
13 | * Jouni Hogander | ||
14 | * | ||
15 | * Based on pm.c for omap2 | ||
16 | * | ||
17 | * This program is free software; you can redistribute it and/or modify | ||
18 | * it under the terms of the GNU General Public License version 2 as | ||
19 | * published by the Free Software Foundation. | ||
20 | */ | ||
21 | |||
22 | #include <linux/kernel.h> | ||
23 | #include <linux/timer.h> | ||
24 | #include <linux/clk.h> | ||
25 | #include <linux/err.h> | ||
26 | #include <linux/io.h> | ||
27 | |||
28 | #include <mach/clock.h> | ||
29 | #include <mach/board.h> | ||
30 | |||
31 | #include "prm.h" | ||
32 | #include "cm.h" | ||
33 | #include "pm.h" | ||
34 | |||
35 | int omap2_pm_debug; | ||
36 | |||
37 | #define DUMP_PRM_MOD_REG(mod, reg) \ | ||
38 | regs[reg_count].name = #mod "." #reg; \ | ||
39 | regs[reg_count++].val = prm_read_mod_reg(mod, reg) | ||
40 | #define DUMP_CM_MOD_REG(mod, reg) \ | ||
41 | regs[reg_count].name = #mod "." #reg; \ | ||
42 | regs[reg_count++].val = cm_read_mod_reg(mod, reg) | ||
43 | #define DUMP_PRM_REG(reg) \ | ||
44 | regs[reg_count].name = #reg; \ | ||
45 | regs[reg_count++].val = __raw_readl(reg) | ||
46 | #define DUMP_CM_REG(reg) \ | ||
47 | regs[reg_count].name = #reg; \ | ||
48 | regs[reg_count++].val = __raw_readl(reg) | ||
49 | #define DUMP_INTC_REG(reg, off) \ | ||
50 | regs[reg_count].name = #reg; \ | ||
51 | regs[reg_count++].val = __raw_readl(IO_ADDRESS(0x480fe000 + (off))) | ||
52 | |||
53 | void omap2_pm_dump(int mode, int resume, unsigned int us) | ||
54 | { | ||
55 | struct reg { | ||
56 | const char *name; | ||
57 | u32 val; | ||
58 | } regs[32]; | ||
59 | int reg_count = 0, i; | ||
60 | const char *s1 = NULL, *s2 = NULL; | ||
61 | |||
62 | if (!resume) { | ||
63 | #if 0 | ||
64 | /* MPU */ | ||
65 | DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRM_IRQENABLE_MPU_OFFSET); | ||
66 | DUMP_CM_MOD_REG(MPU_MOD, CM_CLKSTCTRL); | ||
67 | DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTCTRL); | ||
68 | DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTST); | ||
69 | DUMP_PRM_MOD_REG(MPU_MOD, PM_WKDEP); | ||
70 | #endif | ||
71 | #if 0 | ||
72 | /* INTC */ | ||
73 | DUMP_INTC_REG(INTC_MIR0, 0x0084); | ||
74 | DUMP_INTC_REG(INTC_MIR1, 0x00a4); | ||
75 | DUMP_INTC_REG(INTC_MIR2, 0x00c4); | ||
76 | #endif | ||
77 | #if 0 | ||
78 | DUMP_CM_MOD_REG(CORE_MOD, CM_FCLKEN1); | ||
79 | if (cpu_is_omap24xx()) { | ||
80 | DUMP_CM_MOD_REG(CORE_MOD, OMAP24XX_CM_FCLKEN2); | ||
81 | DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, | ||
82 | OMAP2_PRCM_CLKEMUL_CTRL_OFFSET); | ||
83 | DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, | ||
84 | OMAP2_PRCM_CLKSRC_CTRL_OFFSET); | ||
85 | } | ||
86 | DUMP_CM_MOD_REG(WKUP_MOD, CM_FCLKEN); | ||
87 | DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN1); | ||
88 | DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN2); | ||
89 | DUMP_CM_MOD_REG(WKUP_MOD, CM_ICLKEN); | ||
90 | DUMP_CM_MOD_REG(PLL_MOD, CM_CLKEN); | ||
91 | DUMP_CM_MOD_REG(PLL_MOD, CM_AUTOIDLE); | ||
92 | DUMP_PRM_MOD_REG(CORE_MOD, PM_PWSTST); | ||
93 | #endif | ||
94 | #if 0 | ||
95 | /* DSP */ | ||
96 | if (cpu_is_omap24xx()) { | ||
97 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_FCLKEN); | ||
98 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_ICLKEN); | ||
99 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_IDLEST); | ||
100 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_AUTOIDLE); | ||
101 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSEL); | ||
102 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSTCTRL); | ||
103 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTCTRL); | ||
104 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTST); | ||
105 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTCTRL); | ||
106 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTST); | ||
107 | } | ||
108 | #endif | ||
109 | } else { | ||
110 | DUMP_PRM_MOD_REG(CORE_MOD, PM_WKST1); | ||
111 | if (cpu_is_omap24xx()) | ||
112 | DUMP_PRM_MOD_REG(CORE_MOD, OMAP24XX_PM_WKST2); | ||
113 | DUMP_PRM_MOD_REG(WKUP_MOD, PM_WKST); | ||
114 | DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); | ||
115 | #if 1 | ||
116 | DUMP_INTC_REG(INTC_PENDING_IRQ0, 0x0098); | ||
117 | DUMP_INTC_REG(INTC_PENDING_IRQ1, 0x00b8); | ||
118 | DUMP_INTC_REG(INTC_PENDING_IRQ2, 0x00d8); | ||
119 | #endif | ||
120 | } | ||
121 | |||
122 | switch (mode) { | ||
123 | case 0: | ||
124 | s1 = "full"; | ||
125 | s2 = "retention"; | ||
126 | break; | ||
127 | case 1: | ||
128 | s1 = "MPU"; | ||
129 | s2 = "retention"; | ||
130 | break; | ||
131 | case 2: | ||
132 | s1 = "MPU"; | ||
133 | s2 = "idle"; | ||
134 | break; | ||
135 | } | ||
136 | |||
137 | if (!resume) | ||
138 | #ifdef CONFIG_NO_HZ | ||
139 | printk(KERN_INFO | ||
140 | "--- Going to %s %s (next timer after %u ms)\n", s1, s2, | ||
141 | jiffies_to_msecs(get_next_timer_interrupt(jiffies) - | ||
142 | jiffies)); | ||
143 | #else | ||
144 | printk(KERN_INFO "--- Going to %s %s\n", s1, s2); | ||
145 | #endif | ||
146 | else | ||
147 | printk(KERN_INFO "--- Woke up (slept for %u.%03u ms)\n", | ||
148 | us / 1000, us % 1000); | ||
149 | |||
150 | for (i = 0; i < reg_count; i++) | ||
151 | printk(KERN_INFO "%-20s: 0x%08x\n", regs[i].name, regs[i].val); | ||
152 | } | ||