forked from Minki/linux
3b139cdb37
Rename h/w IRQ flags handling functions to be in line with what is expected for the irq renaming patch. This renames local_*_hw() to hard_local_*() using the following perl command: perl -pi -e 's/local_irq_(restore|enable|disable)_hw/hard_local_irq_\1/ or s/local_irq_save_hw([_a-z]*)[(]flags[)]/flags = hard_local_irq_save\1()/' `find arch/blackfin/ -name "*.[ch]"` and then fixing up asm/irqflags.h manually. Additionally, arch/hard_local_save_flags() and arch/hard_local_irq_save() both return the flags rather than passing it through the argument list. Signed-off-by: David Howells <dhowells@redhat.com>
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/*
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* Copyright 2008 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later
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*/
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#ifndef _MACH_PLL_H
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#define _MACH_PLL_H
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#include <asm/blackfin.h>
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#include <asm/irqflags.h>
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/* Writing to PLL_CTL initiates a PLL relock sequence. */
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static __inline__ void bfin_write_PLL_CTL(unsigned int val)
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{
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unsigned long flags, iwr0, iwr1;
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if (val == bfin_read_PLL_CTL())
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return;
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flags = hard_local_irq_save();
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/* Enable the PLL Wakeup bit in SIC IWR */
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iwr0 = bfin_read32(SIC_IWR0);
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iwr1 = bfin_read32(SIC_IWR1);
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/* Only allow PPL Wakeup) */
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bfin_write32(SIC_IWR0, IWR_ENABLE(0));
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bfin_write32(SIC_IWR1, 0);
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bfin_write16(PLL_CTL, val);
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SSYNC();
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asm("IDLE;");
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bfin_write32(SIC_IWR0, iwr0);
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bfin_write32(SIC_IWR1, iwr1);
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hard_local_irq_restore(flags);
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}
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/* Writing to VR_CTL initiates a PLL relock sequence. */
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static __inline__ void bfin_write_VR_CTL(unsigned int val)
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{
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unsigned long flags, iwr0, iwr1;
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if (val == bfin_read_VR_CTL())
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return;
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flags = hard_local_irq_save();
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/* Enable the PLL Wakeup bit in SIC IWR */
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iwr0 = bfin_read32(SIC_IWR0);
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iwr1 = bfin_read32(SIC_IWR1);
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/* Only allow PPL Wakeup) */
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bfin_write32(SIC_IWR0, IWR_ENABLE(0));
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bfin_write32(SIC_IWR1, 0);
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bfin_write16(VR_CTL, val);
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SSYNC();
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asm("IDLE;");
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bfin_write32(SIC_IWR0, iwr0);
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bfin_write32(SIC_IWR1, iwr1);
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hard_local_irq_restore(flags);
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}
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#endif /* _MACH_PLL_H */
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