diff options
-rw-r--r-- | arch/blackfin/include/mach-common/pll.h | 86 | ||||
-rw-r--r-- | arch/blackfin/mach-bf518/include/mach/pll.h | 64 | ||||
-rw-r--r-- | arch/blackfin/mach-bf527/include/mach/pll.h | 64 | ||||
-rw-r--r-- | arch/blackfin/mach-bf533/include/mach/pll.h | 58 | ||||
-rw-r--r-- | arch/blackfin/mach-bf537/include/mach/pll.h | 58 | ||||
-rw-r--r-- | arch/blackfin/mach-bf538/include/mach/pll.h | 64 | ||||
-rw-r--r-- | arch/blackfin/mach-bf548/include/mach/pll.h | 70 | ||||
-rw-r--r-- | arch/blackfin/mach-bf561/include/mach/pll.h | 64 |
8 files changed, 93 insertions, 435 deletions
diff --git a/arch/blackfin/include/mach-common/pll.h b/arch/blackfin/include/mach-common/pll.h new file mode 100644 index 000000000000..382178b361af --- /dev/null +++ b/arch/blackfin/include/mach-common/pll.h | |||
@@ -0,0 +1,86 @@ | |||
1 | /* | ||
2 | * Copyright 2005-2010 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later. | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_COMMON_PLL_H | ||
8 | #define _MACH_COMMON_PLL_H | ||
9 | |||
10 | #ifndef __ASSEMBLY__ | ||
11 | |||
12 | #include <asm/blackfin.h> | ||
13 | #include <asm/irqflags.h> | ||
14 | |||
15 | #ifndef bfin_iwr_restore | ||
16 | static inline void | ||
17 | bfin_iwr_restore(unsigned long iwr0, unsigned long iwr1, unsigned long iwr2) | ||
18 | { | ||
19 | #ifdef SIC_IWR | ||
20 | bfin_write_SIC_IWR(iwr0); | ||
21 | #else | ||
22 | bfin_write_SIC_IWR0(iwr0); | ||
23 | # ifdef SIC_IWR1 | ||
24 | bfin_write_SIC_IWR1(iwr1); | ||
25 | # endif | ||
26 | # ifdef SIC_IWR2 | ||
27 | bfin_write_SIC_IWR2(iwr2); | ||
28 | # endif | ||
29 | #endif | ||
30 | } | ||
31 | #endif | ||
32 | |||
33 | #ifndef bfin_iwr_save | ||
34 | static inline void | ||
35 | bfin_iwr_save(unsigned long niwr0, unsigned long niwr1, unsigned long niwr2, | ||
36 | unsigned long *iwr0, unsigned long *iwr1, unsigned long *iwr2) | ||
37 | { | ||
38 | #ifdef SIC_IWR | ||
39 | *iwr0 = bfin_read_SIC_IWR(); | ||
40 | #else | ||
41 | *iwr0 = bfin_read_SIC_IWR0(); | ||
42 | # ifdef SIC_IWR1 | ||
43 | *iwr1 = bfin_read_SIC_IWR1(); | ||
44 | # endif | ||
45 | # ifdef SIC_IWR2 | ||
46 | *iwr2 = bfin_read_SIC_IWR2(); | ||
47 | # endif | ||
48 | #endif | ||
49 | bfin_iwr_restore(niwr0, niwr1, niwr2); | ||
50 | } | ||
51 | #endif | ||
52 | |||
53 | static inline void _bfin_write_pll_relock(u32 addr, unsigned int val) | ||
54 | { | ||
55 | unsigned long flags, iwr0, iwr1, iwr2; | ||
56 | |||
57 | if (val == bfin_read_PLL_CTL()) | ||
58 | return; | ||
59 | |||
60 | flags = hard_local_irq_save(); | ||
61 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
62 | bfin_iwr_save(IWR_ENABLE(0), 0, 0, &iwr0, &iwr1, &iwr2); | ||
63 | |||
64 | bfin_write16(addr, val); | ||
65 | SSYNC(); | ||
66 | asm("IDLE;"); | ||
67 | |||
68 | bfin_iwr_restore(iwr0, iwr1, iwr2); | ||
69 | hard_local_irq_restore(flags); | ||
70 | } | ||
71 | |||
72 | /* Writing to PLL_CTL initiates a PLL relock sequence */ | ||
73 | static inline void bfin_write_PLL_CTL(unsigned int val) | ||
74 | { | ||
75 | _bfin_write_pll_relock(PLL_CTL, val); | ||
76 | } | ||
77 | |||
78 | /* Writing to VR_CTL initiates a PLL relock sequence */ | ||
79 | static inline void bfin_write_VR_CTL(unsigned int val) | ||
80 | { | ||
81 | _bfin_write_pll_relock(VR_CTL, val); | ||
82 | } | ||
83 | |||
84 | #endif | ||
85 | |||
86 | #endif | ||
diff --git a/arch/blackfin/mach-bf518/include/mach/pll.h b/arch/blackfin/mach-bf518/include/mach/pll.h index d5502988896b..94cca674d835 100644 --- a/arch/blackfin/mach-bf518/include/mach/pll.h +++ b/arch/blackfin/mach-bf518/include/mach/pll.h | |||
@@ -1,63 +1 @@ | |||
1 | /* | #include <mach-common/pll.h> | |
2 | * Copyright 2008 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_PLL_H | ||
8 | #define _MACH_PLL_H | ||
9 | |||
10 | #include <asm/blackfin.h> | ||
11 | #include <asm/irqflags.h> | ||
12 | |||
13 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
14 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
15 | { | ||
16 | unsigned long flags, iwr0, iwr1; | ||
17 | |||
18 | if (val == bfin_read_PLL_CTL()) | ||
19 | return; | ||
20 | |||
21 | flags = hard_local_irq_save(); | ||
22 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
23 | iwr0 = bfin_read32(SIC_IWR0); | ||
24 | iwr1 = bfin_read32(SIC_IWR1); | ||
25 | /* Only allow PPL Wakeup) */ | ||
26 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
27 | bfin_write32(SIC_IWR1, 0); | ||
28 | |||
29 | bfin_write16(PLL_CTL, val); | ||
30 | SSYNC(); | ||
31 | asm("IDLE;"); | ||
32 | |||
33 | bfin_write32(SIC_IWR0, iwr0); | ||
34 | bfin_write32(SIC_IWR1, iwr1); | ||
35 | hard_local_irq_restore(flags); | ||
36 | } | ||
37 | |||
38 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
39 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
40 | { | ||
41 | unsigned long flags, iwr0, iwr1; | ||
42 | |||
43 | if (val == bfin_read_VR_CTL()) | ||
44 | return; | ||
45 | |||
46 | flags = hard_local_irq_save(); | ||
47 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
48 | iwr0 = bfin_read32(SIC_IWR0); | ||
49 | iwr1 = bfin_read32(SIC_IWR1); | ||
50 | /* Only allow PPL Wakeup) */ | ||
51 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
52 | bfin_write32(SIC_IWR1, 0); | ||
53 | |||
54 | bfin_write16(VR_CTL, val); | ||
55 | SSYNC(); | ||
56 | asm("IDLE;"); | ||
57 | |||
58 | bfin_write32(SIC_IWR0, iwr0); | ||
59 | bfin_write32(SIC_IWR1, iwr1); | ||
60 | hard_local_irq_restore(flags); | ||
61 | } | ||
62 | |||
63 | #endif /* _MACH_PLL_H */ | ||
diff --git a/arch/blackfin/mach-bf527/include/mach/pll.h b/arch/blackfin/mach-bf527/include/mach/pll.h index 24f1d7c02325..94cca674d835 100644 --- a/arch/blackfin/mach-bf527/include/mach/pll.h +++ b/arch/blackfin/mach-bf527/include/mach/pll.h | |||
@@ -1,63 +1 @@ | |||
1 | /* | #include <mach-common/pll.h> | |
2 | * Copyright 2007-2008 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_PLL_H | ||
8 | #define _MACH_PLL_H | ||
9 | |||
10 | #include <asm/blackfin.h> | ||
11 | #include <asm/irqflags.h> | ||
12 | |||
13 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
14 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
15 | { | ||
16 | unsigned long flags, iwr0, iwr1; | ||
17 | |||
18 | if (val == bfin_read_PLL_CTL()) | ||
19 | return; | ||
20 | |||
21 | flags = hard_local_irq_save(); | ||
22 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
23 | iwr0 = bfin_read32(SIC_IWR0); | ||
24 | iwr1 = bfin_read32(SIC_IWR1); | ||
25 | /* Only allow PPL Wakeup) */ | ||
26 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
27 | bfin_write32(SIC_IWR1, 0); | ||
28 | |||
29 | bfin_write16(PLL_CTL, val); | ||
30 | SSYNC(); | ||
31 | asm("IDLE;"); | ||
32 | |||
33 | bfin_write32(SIC_IWR0, iwr0); | ||
34 | bfin_write32(SIC_IWR1, iwr1); | ||
35 | hard_local_irq_restore(flags); | ||
36 | } | ||
37 | |||
38 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
39 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
40 | { | ||
41 | unsigned long flags, iwr0, iwr1; | ||
42 | |||
43 | if (val == bfin_read_VR_CTL()) | ||
44 | return; | ||
45 | |||
46 | flags = hard_local_irq_save(); | ||
47 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
48 | iwr0 = bfin_read32(SIC_IWR0); | ||
49 | iwr1 = bfin_read32(SIC_IWR1); | ||
50 | /* Only allow PPL Wakeup) */ | ||
51 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
52 | bfin_write32(SIC_IWR1, 0); | ||
53 | |||
54 | bfin_write16(VR_CTL, val); | ||
55 | SSYNC(); | ||
56 | asm("IDLE;"); | ||
57 | |||
58 | bfin_write32(SIC_IWR0, iwr0); | ||
59 | bfin_write32(SIC_IWR1, iwr1); | ||
60 | hard_local_irq_restore(flags); | ||
61 | } | ||
62 | |||
63 | #endif /* _MACH_PLL_H */ | ||
diff --git a/arch/blackfin/mach-bf533/include/mach/pll.h b/arch/blackfin/mach-bf533/include/mach/pll.h index 169c106d0edb..94cca674d835 100644 --- a/arch/blackfin/mach-bf533/include/mach/pll.h +++ b/arch/blackfin/mach-bf533/include/mach/pll.h | |||
@@ -1,57 +1 @@ | |||
1 | /* | #include <mach-common/pll.h> | |
2 | * Copyright 2005-2008 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_PLL_H | ||
8 | #define _MACH_PLL_H | ||
9 | |||
10 | #include <asm/blackfin.h> | ||
11 | #include <asm/irqflags.h> | ||
12 | |||
13 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
14 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
15 | { | ||
16 | unsigned long flags, iwr; | ||
17 | |||
18 | if (val == bfin_read_PLL_CTL()) | ||
19 | return; | ||
20 | |||
21 | flags = hard_local_irq_save(); | ||
22 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
23 | iwr = bfin_read32(SIC_IWR); | ||
24 | /* Only allow PPL Wakeup) */ | ||
25 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
26 | |||
27 | bfin_write16(PLL_CTL, val); | ||
28 | SSYNC(); | ||
29 | asm("IDLE;"); | ||
30 | |||
31 | bfin_write32(SIC_IWR, iwr); | ||
32 | hard_local_irq_restore(flags); | ||
33 | } | ||
34 | |||
35 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
36 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
37 | { | ||
38 | unsigned long flags, iwr; | ||
39 | |||
40 | if (val == bfin_read_VR_CTL()) | ||
41 | return; | ||
42 | |||
43 | flags = hard_local_irq_save(); | ||
44 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
45 | iwr = bfin_read32(SIC_IWR); | ||
46 | /* Only allow PPL Wakeup) */ | ||
47 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
48 | |||
49 | bfin_write16(VR_CTL, val); | ||
50 | SSYNC(); | ||
51 | asm("IDLE;"); | ||
52 | |||
53 | bfin_write32(SIC_IWR, iwr); | ||
54 | hard_local_irq_restore(flags); | ||
55 | } | ||
56 | |||
57 | #endif /* _MACH_PLL_H */ | ||
diff --git a/arch/blackfin/mach-bf537/include/mach/pll.h b/arch/blackfin/mach-bf537/include/mach/pll.h index 169c106d0edb..94cca674d835 100644 --- a/arch/blackfin/mach-bf537/include/mach/pll.h +++ b/arch/blackfin/mach-bf537/include/mach/pll.h | |||
@@ -1,57 +1 @@ | |||
1 | /* | #include <mach-common/pll.h> | |
2 | * Copyright 2005-2008 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_PLL_H | ||
8 | #define _MACH_PLL_H | ||
9 | |||
10 | #include <asm/blackfin.h> | ||
11 | #include <asm/irqflags.h> | ||
12 | |||
13 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
14 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
15 | { | ||
16 | unsigned long flags, iwr; | ||
17 | |||
18 | if (val == bfin_read_PLL_CTL()) | ||
19 | return; | ||
20 | |||
21 | flags = hard_local_irq_save(); | ||
22 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
23 | iwr = bfin_read32(SIC_IWR); | ||
24 | /* Only allow PPL Wakeup) */ | ||
25 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
26 | |||
27 | bfin_write16(PLL_CTL, val); | ||
28 | SSYNC(); | ||
29 | asm("IDLE;"); | ||
30 | |||
31 | bfin_write32(SIC_IWR, iwr); | ||
32 | hard_local_irq_restore(flags); | ||
33 | } | ||
34 | |||
35 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
36 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
37 | { | ||
38 | unsigned long flags, iwr; | ||
39 | |||
40 | if (val == bfin_read_VR_CTL()) | ||
41 | return; | ||
42 | |||
43 | flags = hard_local_irq_save(); | ||
44 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
45 | iwr = bfin_read32(SIC_IWR); | ||
46 | /* Only allow PPL Wakeup) */ | ||
47 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
48 | |||
49 | bfin_write16(VR_CTL, val); | ||
50 | SSYNC(); | ||
51 | asm("IDLE;"); | ||
52 | |||
53 | bfin_write32(SIC_IWR, iwr); | ||
54 | hard_local_irq_restore(flags); | ||
55 | } | ||
56 | |||
57 | #endif /* _MACH_PLL_H */ | ||
diff --git a/arch/blackfin/mach-bf538/include/mach/pll.h b/arch/blackfin/mach-bf538/include/mach/pll.h index b30bbcd412a7..94cca674d835 100644 --- a/arch/blackfin/mach-bf538/include/mach/pll.h +++ b/arch/blackfin/mach-bf538/include/mach/pll.h | |||
@@ -1,63 +1 @@ | |||
1 | /* | #include <mach-common/pll.h> | |
2 | * Copyright 2008-2009 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later. | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_PLL_H | ||
8 | #define _MACH_PLL_H | ||
9 | |||
10 | #include <asm/blackfin.h> | ||
11 | #include <asm/irqflags.h> | ||
12 | |||
13 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
14 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
15 | { | ||
16 | unsigned long flags, iwr0, iwr1; | ||
17 | |||
18 | if (val == bfin_read_PLL_CTL()) | ||
19 | return; | ||
20 | |||
21 | flags = hard_local_irq_save(); | ||
22 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
23 | iwr0 = bfin_read32(SIC_IWR0); | ||
24 | iwr1 = bfin_read32(SIC_IWR1); | ||
25 | /* Only allow PPL Wakeup) */ | ||
26 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
27 | bfin_write32(SIC_IWR1, 0); | ||
28 | |||
29 | bfin_write16(PLL_CTL, val); | ||
30 | SSYNC(); | ||
31 | asm("IDLE;"); | ||
32 | |||
33 | bfin_write32(SIC_IWR0, iwr0); | ||
34 | bfin_write32(SIC_IWR1, iwr1); | ||
35 | hard_local_irq_restore(flags); | ||
36 | } | ||
37 | |||
38 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
39 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
40 | { | ||
41 | unsigned long flags, iwr0, iwr1; | ||
42 | |||
43 | if (val == bfin_read_VR_CTL()) | ||
44 | return; | ||
45 | |||
46 | flags = hard_local_irq_save(); | ||
47 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
48 | iwr0 = bfin_read32(SIC_IWR0); | ||
49 | iwr1 = bfin_read32(SIC_IWR1); | ||
50 | /* Only allow PPL Wakeup) */ | ||
51 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
52 | bfin_write32(SIC_IWR1, 0); | ||
53 | |||
54 | bfin_write16(VR_CTL, val); | ||
55 | SSYNC(); | ||
56 | asm("IDLE;"); | ||
57 | |||
58 | bfin_write32(SIC_IWR0, iwr0); | ||
59 | bfin_write32(SIC_IWR1, iwr1); | ||
60 | hard_local_irq_restore(flags); | ||
61 | } | ||
62 | |||
63 | #endif /* _MACH_PLL_H */ | ||
diff --git a/arch/blackfin/mach-bf548/include/mach/pll.h b/arch/blackfin/mach-bf548/include/mach/pll.h index 7865a090d333..94cca674d835 100644 --- a/arch/blackfin/mach-bf548/include/mach/pll.h +++ b/arch/blackfin/mach-bf548/include/mach/pll.h | |||
@@ -1,69 +1 @@ | |||
1 | /* | #include <mach-common/pll.h> | |
2 | * Copyright 2007-2008 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later. | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_PLL_H | ||
8 | #define _MACH_PLL_H | ||
9 | |||
10 | #include <asm/blackfin.h> | ||
11 | #include <asm/irqflags.h> | ||
12 | |||
13 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
14 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
15 | { | ||
16 | unsigned long flags, iwr0, iwr1, iwr2; | ||
17 | |||
18 | if (val == bfin_read_PLL_CTL()) | ||
19 | return; | ||
20 | |||
21 | flags = hard_local_irq_save(); | ||
22 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
23 | iwr0 = bfin_read32(SIC_IWR0); | ||
24 | iwr1 = bfin_read32(SIC_IWR1); | ||
25 | iwr2 = bfin_read32(SIC_IWR2); | ||
26 | /* Only allow PPL Wakeup) */ | ||
27 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
28 | bfin_write32(SIC_IWR1, 0); | ||
29 | bfin_write32(SIC_IWR2, 0); | ||
30 | |||
31 | bfin_write16(PLL_CTL, val); | ||
32 | SSYNC(); | ||
33 | asm("IDLE;"); | ||
34 | |||
35 | bfin_write32(SIC_IWR0, iwr0); | ||
36 | bfin_write32(SIC_IWR1, iwr1); | ||
37 | bfin_write32(SIC_IWR2, iwr2); | ||
38 | hard_local_irq_restore(flags); | ||
39 | } | ||
40 | |||
41 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
42 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
43 | { | ||
44 | unsigned long flags, iwr0, iwr1, iwr2; | ||
45 | |||
46 | if (val == bfin_read_VR_CTL()) | ||
47 | return; | ||
48 | |||
49 | flags = hard_local_irq_save(); | ||
50 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
51 | iwr0 = bfin_read32(SIC_IWR0); | ||
52 | iwr1 = bfin_read32(SIC_IWR1); | ||
53 | iwr2 = bfin_read32(SIC_IWR2); | ||
54 | /* Only allow PPL Wakeup) */ | ||
55 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
56 | bfin_write32(SIC_IWR1, 0); | ||
57 | bfin_write32(SIC_IWR2, 0); | ||
58 | |||
59 | bfin_write16(VR_CTL, val); | ||
60 | SSYNC(); | ||
61 | asm("IDLE;"); | ||
62 | |||
63 | bfin_write32(SIC_IWR0, iwr0); | ||
64 | bfin_write32(SIC_IWR1, iwr1); | ||
65 | bfin_write32(SIC_IWR2, iwr2); | ||
66 | hard_local_irq_restore(flags); | ||
67 | } | ||
68 | |||
69 | #endif /* _MACH_PLL_H */ | ||
diff --git a/arch/blackfin/mach-bf561/include/mach/pll.h b/arch/blackfin/mach-bf561/include/mach/pll.h index 5cdb655c4465..94cca674d835 100644 --- a/arch/blackfin/mach-bf561/include/mach/pll.h +++ b/arch/blackfin/mach-bf561/include/mach/pll.h | |||
@@ -1,63 +1 @@ | |||
1 | /* | #include <mach-common/pll.h> | |
2 | * Copyright 2005-2009 Analog Devices Inc. | ||
3 | * | ||
4 | * Licensed under the GPL-2 or later. | ||
5 | */ | ||
6 | |||
7 | #ifndef _MACH_PLL_H | ||
8 | #define _MACH_PLL_H | ||
9 | |||
10 | #include <asm/blackfin.h> | ||
11 | #include <asm/irqflags.h> | ||
12 | |||
13 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
14 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
15 | { | ||
16 | unsigned long flags, iwr0, iwr1; | ||
17 | |||
18 | if (val == bfin_read_PLL_CTL()) | ||
19 | return; | ||
20 | |||
21 | flags = hard_local_irq_save(); | ||
22 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
23 | iwr0 = bfin_read32(SIC_IWR0); | ||
24 | iwr1 = bfin_read32(SIC_IWR1); | ||
25 | /* Only allow PPL Wakeup) */ | ||
26 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
27 | bfin_write32(SIC_IWR1, 0); | ||
28 | |||
29 | bfin_write16(PLL_CTL, val); | ||
30 | SSYNC(); | ||
31 | asm("IDLE;"); | ||
32 | |||
33 | bfin_write32(SIC_IWR0, iwr0); | ||
34 | bfin_write32(SIC_IWR1, iwr1); | ||
35 | hard_local_irq_restore(flags); | ||
36 | } | ||
37 | |||
38 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
39 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
40 | { | ||
41 | unsigned long flags, iwr0, iwr1; | ||
42 | |||
43 | if (val == bfin_read_VR_CTL()) | ||
44 | return; | ||
45 | |||
46 | flags = hard_local_irq_save(); | ||
47 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
48 | iwr0 = bfin_read32(SIC_IWR0); | ||
49 | iwr1 = bfin_read32(SIC_IWR1); | ||
50 | /* Only allow PPL Wakeup) */ | ||
51 | bfin_write32(SIC_IWR0, IWR_ENABLE(0)); | ||
52 | bfin_write32(SIC_IWR1, 0); | ||
53 | |||
54 | bfin_write16(VR_CTL, val); | ||
55 | SSYNC(); | ||
56 | asm("IDLE;"); | ||
57 | |||
58 | bfin_write32(SIC_IWR0, iwr0); | ||
59 | bfin_write32(SIC_IWR1, iwr1); | ||
60 | hard_local_irq_restore(flags); | ||
61 | } | ||
62 | |||
63 | #endif /* _MACH_PLL_H */ | ||