diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-l7200/pmu.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-arm/arch-l7200/pmu.h')
-rw-r--r-- | include/asm-arm/arch-l7200/pmu.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/include/asm-arm/arch-l7200/pmu.h b/include/asm-arm/arch-l7200/pmu.h new file mode 100644 index 000000000000..57faea76d1b3 --- /dev/null +++ b/include/asm-arm/arch-l7200/pmu.h | |||
@@ -0,0 +1,125 @@ | |||
1 | /****************************************************************************/ | ||
2 | /* | ||
3 | * linux/include/asm-arm/arch-l7200/pmu.h | ||
4 | * | ||
5 | * Registers and helper functions for the L7200 Link-Up Systems | ||
6 | * Power Management Unit (PMU). | ||
7 | * | ||
8 | * (C) Copyright 2000, S A McConnell (samcconn@cotw.com) | ||
9 | * | ||
10 | * This file is subject to the terms and conditions of the GNU General Public | ||
11 | * License. See the file COPYING in the main directory of this archive for | ||
12 | * more details. | ||
13 | */ | ||
14 | |||
15 | /****************************************************************************/ | ||
16 | |||
17 | #define PMU_OFF 0x00050000 /* Offset from IO_START to the PMU registers. */ | ||
18 | |||
19 | /* IO_START and IO_BASE are defined in hardware.h */ | ||
20 | |||
21 | #define PMU_START (IO_START + PMU_OFF) /* Physical addr. of the PMU reg. */ | ||
22 | #define PMU_BASE (IO_BASE + PMU_OFF) /* Virtual addr. of the PMU reg. */ | ||
23 | |||
24 | |||
25 | /* Define the PMU registers for use by device drivers and the kernel. */ | ||
26 | |||
27 | typedef struct { | ||
28 | unsigned int CURRENT; /* Current configuration register */ | ||
29 | unsigned int NEXT; /* Next configuration register */ | ||
30 | unsigned int reserved; | ||
31 | unsigned int RUN; /* Run configuration register */ | ||
32 | unsigned int COMM; /* Configuration command register */ | ||
33 | unsigned int SDRAM; /* SDRAM configuration bypass register */ | ||
34 | } pmu_interface; | ||
35 | |||
36 | #define PMU ((volatile pmu_interface *)(PMU_BASE)) | ||
37 | |||
38 | |||
39 | /* Macro's for reading the common register fields. */ | ||
40 | |||
41 | #define GET_TRANSOP(reg) ((reg >> 25) & 0x03) /* Bits 26-25 */ | ||
42 | #define GET_OSCEN(reg) ((reg >> 16) & 0x01) | ||
43 | #define GET_OSCMUX(reg) ((reg >> 15) & 0x01) | ||
44 | #define GET_PLLMUL(reg) ((reg >> 9) & 0x3f) /* Bits 14-9 */ | ||
45 | #define GET_PLLEN(reg) ((reg >> 8) & 0x01) | ||
46 | #define GET_PLLMUX(reg) ((reg >> 7) & 0x01) | ||
47 | #define GET_BCLK_DIV(reg) ((reg >> 3) & 0x03) /* Bits 4-3 */ | ||
48 | #define GET_SDRB_SEL(reg) ((reg >> 2) & 0x01) | ||
49 | #define GET_SDRF_SEL(reg) ((reg >> 1) & 0x01) | ||
50 | #define GET_FASTBUS(reg) (reg & 0x1) | ||
51 | |||
52 | /* CFG_NEXT register */ | ||
53 | |||
54 | #define CFG_NEXT_CLOCKRECOVERY ((PMU->NEXT >> 18) & 0x7f) /* Bits 24-18 */ | ||
55 | #define CFG_NEXT_INTRET ((PMU->NEXT >> 17) & 0x01) | ||
56 | #define CFG_NEXT_SDR_STOP ((PMU->NEXT >> 6) & 0x01) | ||
57 | #define CFG_NEXT_SYSCLKEN ((PMU->NEXT >> 5) & 0x01) | ||
58 | |||
59 | /* Useful field values that can be used to construct the | ||
60 | * CFG_NEXT and CFG_RUN registers. | ||
61 | */ | ||
62 | |||
63 | #define TRANSOP_NOP 0<<25 /* NOCHANGE_NOSTALL */ | ||
64 | #define NOCHANGE_STALL 1<<25 | ||
65 | #define CHANGE_NOSTALL 2<<25 | ||
66 | #define CHANGE_STALL 3<<25 | ||
67 | |||
68 | #define INTRET 1<<17 | ||
69 | #define OSCEN 1<<16 | ||
70 | #define OSCMUX 1<<15 | ||
71 | |||
72 | /* PLL frequencies */ | ||
73 | |||
74 | #define PLLMUL_0 0<<9 /* 3.6864 MHz */ | ||
75 | #define PLLMUL_1 1<<9 /* ?????? MHz */ | ||
76 | #define PLLMUL_5 5<<9 /* 18.432 MHz */ | ||
77 | #define PLLMUL_10 10<<9 /* 36.864 MHz */ | ||
78 | #define PLLMUL_18 18<<9 /* ?????? MHz */ | ||
79 | #define PLLMUL_20 20<<9 /* 73.728 MHz */ | ||
80 | #define PLLMUL_32 32<<9 /* ?????? MHz */ | ||
81 | #define PLLMUL_35 35<<9 /* 129.024 MHz */ | ||
82 | #define PLLMUL_36 36<<9 /* ?????? MHz */ | ||
83 | #define PLLMUL_39 39<<9 /* ?????? MHz */ | ||
84 | #define PLLMUL_40 40<<9 /* 147.456 MHz */ | ||
85 | |||
86 | /* Clock recovery times */ | ||
87 | |||
88 | #define CRCLOCK_1 1<<18 | ||
89 | #define CRCLOCK_2 2<<18 | ||
90 | #define CRCLOCK_4 4<<18 | ||
91 | #define CRCLOCK_8 8<<18 | ||
92 | #define CRCLOCK_16 16<<18 | ||
93 | #define CRCLOCK_32 32<<18 | ||
94 | #define CRCLOCK_63 63<<18 | ||
95 | #define CRCLOCK_127 127<<18 | ||
96 | |||
97 | #define PLLEN 1<<8 | ||
98 | #define PLLMUX 1<<7 | ||
99 | #define SDR_STOP 1<<6 | ||
100 | #define SYSCLKEN 1<<5 | ||
101 | |||
102 | #define BCLK_DIV_4 2<<3 | ||
103 | #define BCLK_DIV_2 1<<3 | ||
104 | #define BCLK_DIV_1 0<<3 | ||
105 | |||
106 | #define SDRB_SEL 1<<2 | ||
107 | #define SDRF_SEL 1<<1 | ||
108 | #define FASTBUS 1<<0 | ||
109 | |||
110 | |||
111 | /* CFG_SDRAM */ | ||
112 | |||
113 | #define SDRREFFQ 1<<0 /* Only if SDRSTOPRQ is not set. */ | ||
114 | #define SDRREFACK 1<<1 /* Read-only */ | ||
115 | #define SDRSTOPRQ 1<<2 /* Only if SDRREFFQ is not set. */ | ||
116 | #define SDRSTOPACK 1<<3 /* Read-only */ | ||
117 | #define PICEN 1<<4 /* Enable Co-procesor */ | ||
118 | #define PICTEST 1<<5 | ||
119 | |||
120 | #define GET_SDRREFFQ ((PMU->SDRAM >> 0) & 0x01) | ||
121 | #define GET_SDRREFACK ((PMU->SDRAM >> 1) & 0x01) /* Read-only */ | ||
122 | #define GET_SDRSTOPRQ ((PMU->SDRAM >> 2) & 0x01) | ||
123 | #define GET_SDRSTOPACK ((PMU->SDRAM >> 3) & 0x01) /* Read-only */ | ||
124 | #define GET_PICEN ((PMU->SDRAM >> 4) & 0x01) | ||
125 | #define GET_PICTEST ((PMU->SDRAM >> 5) & 0x01) | ||