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authorDavid Howells <dhowells@redhat.com>2010-10-07 09:08:49 -0400
committerDavid Howells <dhowells@redhat.com>2010-10-07 09:08:49 -0400
commit3dcc1e7f9fd48f20beefd41a684cd471a96565c5 (patch)
tree02ab916ad68feafdbd3fa5013958c9f4ec6f8457 /arch/blackfin/mach-bf548
parentcb655d0f3d57c23db51b981648e452988c0223f9 (diff)
Blackfin: Split PLL code from mach-specific cdef headers
Split the PLL control code from the Blackfin machine-specific cdef headers so that the irqflags functions can be renamed without incurring a header loop. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/blackfin/mach-bf548')
-rw-r--r--arch/blackfin/mach-bf548/include/mach/cdefBF54x_base.h56
-rw-r--r--arch/blackfin/mach-bf548/include/mach/pll.h69
2 files changed, 69 insertions, 56 deletions
diff --git a/arch/blackfin/mach-bf548/include/mach/cdefBF54x_base.h b/arch/blackfin/mach-bf548/include/mach/cdefBF54x_base.h
index ea3ec4ea9e2b..0c16067df4f3 100644
--- a/arch/blackfin/mach-bf548/include/mach/cdefBF54x_base.h
+++ b/arch/blackfin/mach-bf548/include/mach/cdefBF54x_base.h
@@ -2648,61 +2648,5 @@
2648/* These need to be last due to the cdef/linux inter-dependencies */ 2648/* These need to be last due to the cdef/linux inter-dependencies */
2649#include <asm/irq.h> 2649#include <asm/irq.h>
2650 2650
2651/* Writing to PLL_CTL initiates a PLL relock sequence. */
2652static __inline__ void bfin_write_PLL_CTL(unsigned int val)
2653{
2654 unsigned long flags, iwr0, iwr1, iwr2;
2655
2656 if (val == bfin_read_PLL_CTL())
2657 return;
2658
2659 local_irq_save_hw(flags);
2660 /* Enable the PLL Wakeup bit in SIC IWR */
2661 iwr0 = bfin_read32(SIC_IWR0);
2662 iwr1 = bfin_read32(SIC_IWR1);
2663 iwr2 = bfin_read32(SIC_IWR2);
2664 /* Only allow PPL Wakeup) */
2665 bfin_write32(SIC_IWR0, IWR_ENABLE(0));
2666 bfin_write32(SIC_IWR1, 0);
2667 bfin_write32(SIC_IWR2, 0);
2668
2669 bfin_write16(PLL_CTL, val);
2670 SSYNC();
2671 asm("IDLE;");
2672
2673 bfin_write32(SIC_IWR0, iwr0);
2674 bfin_write32(SIC_IWR1, iwr1);
2675 bfin_write32(SIC_IWR2, iwr2);
2676 local_irq_restore_hw(flags);
2677}
2678
2679/* Writing to VR_CTL initiates a PLL relock sequence. */
2680static __inline__ void bfin_write_VR_CTL(unsigned int val)
2681{
2682 unsigned long flags, iwr0, iwr1, iwr2;
2683
2684 if (val == bfin_read_VR_CTL())
2685 return;
2686
2687 local_irq_save_hw(flags);
2688 /* Enable the PLL Wakeup bit in SIC IWR */
2689 iwr0 = bfin_read32(SIC_IWR0);
2690 iwr1 = bfin_read32(SIC_IWR1);
2691 iwr2 = bfin_read32(SIC_IWR2);
2692 /* Only allow PPL Wakeup) */
2693 bfin_write32(SIC_IWR0, IWR_ENABLE(0));
2694 bfin_write32(SIC_IWR1, 0);
2695 bfin_write32(SIC_IWR2, 0);
2696
2697 bfin_write16(VR_CTL, val);
2698 SSYNC();
2699 asm("IDLE;");
2700
2701 bfin_write32(SIC_IWR0, iwr0);
2702 bfin_write32(SIC_IWR1, iwr1);
2703 bfin_write32(SIC_IWR2, iwr2);
2704 local_irq_restore_hw(flags);
2705}
2706
2707#endif /* _CDEF_BF54X_H */ 2651#endif /* _CDEF_BF54X_H */
2708 2652
diff --git a/arch/blackfin/mach-bf548/include/mach/pll.h b/arch/blackfin/mach-bf548/include/mach/pll.h
new file mode 100644
index 000000000000..777fee61fab8
--- /dev/null
+++ b/arch/blackfin/mach-bf548/include/mach/pll.h
@@ -0,0 +1,69 @@
1/*
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. */
14static __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 local_irq_save_hw(flags);
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 local_irq_restore_hw(flags);
39}
40
41/* Writing to VR_CTL initiates a PLL relock sequence. */
42static __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 local_irq_save_hw(flags);
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 local_irq_restore_hw(flags);
67}
68
69#endif /* _MACH_PLL_H */