diff options
author | Mike Frysinger <vapier.adi@gmail.com> | 2008-11-18 04:48:22 -0500 |
---|---|---|
committer | Bryan Wu <cooloney@kernel.org> | 2008-11-18 04:48:22 -0500 |
commit | 53442e1cbdc1559cd39e0076adae6df64af36a3e (patch) | |
tree | 6513ffea1fcfdf488d5ec5e96f78fb2c2bc4b9f2 /arch/blackfin/mach-bf533 | |
parent | b94919e2da2f7acde842972a57fcd6dcc4a528db (diff) |
Blackfin arch: delay PLL_CTL/VR_CTL wrappers
Delay PLL_CTL/VR_CTL wrappers as much as possible to avoid
the inter-dependency problems with cdef and common headers
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/mach-bf533')
-rw-r--r-- | arch/blackfin/mach-bf533/include/mach/cdefBF532.h | 91 |
1 files changed, 47 insertions, 44 deletions
diff --git a/arch/blackfin/mach-bf533/include/mach/cdefBF532.h b/arch/blackfin/mach-bf533/include/mach/cdefBF532.h index 3d8978a52c17..24ff2cb967f6 100644 --- a/arch/blackfin/mach-bf533/include/mach/cdefBF532.h +++ b/arch/blackfin/mach-bf533/include/mach/cdefBF532.h | |||
@@ -39,31 +39,8 @@ | |||
39 | /*include core specific register pointer definitions*/ | 39 | /*include core specific register pointer definitions*/ |
40 | #include <asm/cdef_LPBlackfin.h> | 40 | #include <asm/cdef_LPBlackfin.h> |
41 | 41 | ||
42 | #include <asm/system.h> | ||
43 | |||
44 | /* Clock and System Control (0xFFC0 0400-0xFFC0 07FF) */ | 42 | /* Clock and System Control (0xFFC0 0400-0xFFC0 07FF) */ |
45 | #define bfin_read_PLL_CTL() bfin_read16(PLL_CTL) | 43 | #define bfin_read_PLL_CTL() bfin_read16(PLL_CTL) |
46 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
47 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
48 | { | ||
49 | unsigned long flags, iwr; | ||
50 | |||
51 | if (val == bfin_read_PLL_CTL()) | ||
52 | return; | ||
53 | |||
54 | local_irq_save(flags); | ||
55 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
56 | iwr = bfin_read32(SIC_IWR); | ||
57 | /* Only allow PPL Wakeup) */ | ||
58 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
59 | |||
60 | bfin_write16(PLL_CTL, val); | ||
61 | SSYNC(); | ||
62 | asm("IDLE;"); | ||
63 | |||
64 | bfin_write32(SIC_IWR, iwr); | ||
65 | local_irq_restore(flags); | ||
66 | } | ||
67 | #define bfin_read_PLL_STAT() bfin_read16(PLL_STAT) | 44 | #define bfin_read_PLL_STAT() bfin_read16(PLL_STAT) |
68 | #define bfin_write_PLL_STAT(val) bfin_write16(PLL_STAT,val) | 45 | #define bfin_write_PLL_STAT(val) bfin_write16(PLL_STAT,val) |
69 | #define bfin_read_PLL_LOCKCNT() bfin_read16(PLL_LOCKCNT) | 46 | #define bfin_read_PLL_LOCKCNT() bfin_read16(PLL_LOCKCNT) |
@@ -72,27 +49,6 @@ static __inline__ void bfin_write_PLL_CTL(unsigned int val) | |||
72 | #define bfin_read_PLL_DIV() bfin_read16(PLL_DIV) | 49 | #define bfin_read_PLL_DIV() bfin_read16(PLL_DIV) |
73 | #define bfin_write_PLL_DIV(val) bfin_write16(PLL_DIV,val) | 50 | #define bfin_write_PLL_DIV(val) bfin_write16(PLL_DIV,val) |
74 | #define bfin_read_VR_CTL() bfin_read16(VR_CTL) | 51 | #define bfin_read_VR_CTL() bfin_read16(VR_CTL) |
75 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
76 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
77 | { | ||
78 | unsigned long flags, iwr; | ||
79 | |||
80 | if (val == bfin_read_VR_CTL()) | ||
81 | return; | ||
82 | |||
83 | local_irq_save(flags); | ||
84 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
85 | iwr = bfin_read32(SIC_IWR); | ||
86 | /* Only allow PPL Wakeup) */ | ||
87 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
88 | |||
89 | bfin_write16(VR_CTL, val); | ||
90 | SSYNC(); | ||
91 | asm("IDLE;"); | ||
92 | |||
93 | bfin_write32(SIC_IWR, iwr); | ||
94 | local_irq_restore(flags); | ||
95 | } | ||
96 | 52 | ||
97 | /* System Interrupt Controller (0xFFC0 0C00-0xFFC0 0FFF) */ | 53 | /* System Interrupt Controller (0xFFC0 0C00-0xFFC0 0FFF) */ |
98 | #define bfin_read_SWRST() bfin_read16(SWRST) | 54 | #define bfin_read_SWRST() bfin_read16(SWRST) |
@@ -764,4 +720,51 @@ BFIN_READ_FIO_FLAG(T) | |||
764 | #define bfin_read_PPI_FRAME() bfin_read16(PPI_FRAME) | 720 | #define bfin_read_PPI_FRAME() bfin_read16(PPI_FRAME) |
765 | #define bfin_write_PPI_FRAME(val) bfin_write16(PPI_FRAME,val) | 721 | #define bfin_write_PPI_FRAME(val) bfin_write16(PPI_FRAME,val) |
766 | 722 | ||
723 | /* These need to be last due to the cdef/linux inter-dependencies */ | ||
724 | #include <asm/system.h> | ||
725 | |||
726 | /* Writing to PLL_CTL initiates a PLL relock sequence. */ | ||
727 | static __inline__ void bfin_write_PLL_CTL(unsigned int val) | ||
728 | { | ||
729 | unsigned long flags, iwr; | ||
730 | |||
731 | if (val == bfin_read_PLL_CTL()) | ||
732 | return; | ||
733 | |||
734 | local_irq_save(flags); | ||
735 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
736 | iwr = bfin_read32(SIC_IWR); | ||
737 | /* Only allow PPL Wakeup) */ | ||
738 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
739 | |||
740 | bfin_write16(PLL_CTL, val); | ||
741 | SSYNC(); | ||
742 | asm("IDLE;"); | ||
743 | |||
744 | bfin_write32(SIC_IWR, iwr); | ||
745 | local_irq_restore(flags); | ||
746 | } | ||
747 | |||
748 | /* Writing to VR_CTL initiates a PLL relock sequence. */ | ||
749 | static __inline__ void bfin_write_VR_CTL(unsigned int val) | ||
750 | { | ||
751 | unsigned long flags, iwr; | ||
752 | |||
753 | if (val == bfin_read_VR_CTL()) | ||
754 | return; | ||
755 | |||
756 | local_irq_save(flags); | ||
757 | /* Enable the PLL Wakeup bit in SIC IWR */ | ||
758 | iwr = bfin_read32(SIC_IWR); | ||
759 | /* Only allow PPL Wakeup) */ | ||
760 | bfin_write32(SIC_IWR, IWR_ENABLE(0)); | ||
761 | |||
762 | bfin_write16(VR_CTL, val); | ||
763 | SSYNC(); | ||
764 | asm("IDLE;"); | ||
765 | |||
766 | bfin_write32(SIC_IWR, iwr); | ||
767 | local_irq_restore(flags); | ||
768 | } | ||
769 | |||
767 | #endif /* _CDEF_BF532_H */ | 770 | #endif /* _CDEF_BF532_H */ |