diff options
Diffstat (limited to 'arch/blackfin/mach-bf561/include/mach/pll.h')
-rw-r--r-- | arch/blackfin/mach-bf561/include/mach/pll.h | 83 |
1 files changed, 37 insertions, 46 deletions
diff --git a/arch/blackfin/mach-bf561/include/mach/pll.h b/arch/blackfin/mach-bf561/include/mach/pll.h index f2b1fbdb8e72..7977db2f1c12 100644 --- a/arch/blackfin/mach-bf561/include/mach/pll.h +++ b/arch/blackfin/mach-bf561/include/mach/pll.h @@ -1,5 +1,5 @@ /* - * Copyright 2005-2009 Analog Devices Inc. + * Copyright 2005-2010 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ @@ -7,57 +7,48 @@ #ifndef _MACH_PLL_H #define _MACH_PLL_H +#ifndef __ASSEMBLY__ + +#ifdef CONFIG_SMP + #include <asm/blackfin.h> #include <asm/irqflags.h> +#include <mach/irq.h> + +#define SUPPLE_0_WAKEUP ((IRQ_SUPPLE_0 - (IRQ_CORETMR + 1)) % 32) -/* Writing to PLL_CTL initiates a PLL relock sequence. */ -static __inline__ void bfin_write_PLL_CTL(unsigned int val) +static inline void +bfin_iwr_restore(unsigned long iwr0, unsigned long iwr1, unsigned long iwr2) { - unsigned long flags, iwr0, iwr1; - - if (val == bfin_read_PLL_CTL()) - return; - - flags = hard_local_irq_save(); - /* Enable the PLL Wakeup bit in SIC IWR */ - iwr0 = bfin_read32(SICA_IWR0); - iwr1 = bfin_read32(SICA_IWR1); - /* Only allow PPL Wakeup) */ - bfin_write32(SICA_IWR0, IWR_ENABLE(0)); - bfin_write32(SICA_IWR1, 0); - - bfin_write16(PLL_CTL, val); - SSYNC(); - asm("IDLE;"); - - bfin_write32(SICA_IWR0, iwr0); - bfin_write32(SICA_IWR1, iwr1); - hard_local_irq_restore(flags); + unsigned long SICA_SICB_OFF = ((bfin_read_DSPID() & 0xff) ? 0x1000 : 0); + + bfin_write32(SIC_IWR0 + SICA_SICB_OFF, iwr0); + bfin_write32(SIC_IWR1 + SICA_SICB_OFF, iwr1); } +#define bfin_iwr_restore bfin_iwr_restore -/* Writing to VR_CTL initiates a PLL relock sequence. */ -static __inline__ void bfin_write_VR_CTL(unsigned int val) +static inline void +bfin_iwr_save(unsigned long niwr0, unsigned long niwr1, unsigned long niwr2, + unsigned long *iwr0, unsigned long *iwr1, unsigned long *iwr2) { - unsigned long flags, iwr0, iwr1; - - if (val == bfin_read_VR_CTL()) - return; - - flags = hard_local_irq_save(); - /* Enable the PLL Wakeup bit in SIC IWR */ - iwr0 = bfin_read32(SICA_IWR0); - iwr1 = bfin_read32(SICA_IWR1); - /* Only allow PPL Wakeup) */ - bfin_write32(SICA_IWR0, IWR_ENABLE(0)); - bfin_write32(SICA_IWR1, 0); - - bfin_write16(VR_CTL, val); - SSYNC(); - asm("IDLE;"); - - bfin_write32(SICA_IWR0, iwr0); - bfin_write32(SICA_IWR1, iwr1); - hard_local_irq_restore(flags); + unsigned long SICA_SICB_OFF = ((bfin_read_DSPID() & 0xff) ? 0x1000 : 0); + + *iwr0 = bfin_read32(SIC_IWR0 + SICA_SICB_OFF); + *iwr1 = bfin_read32(SIC_IWR1 + SICA_SICB_OFF); + bfin_iwr_restore(niwr0, niwr1, niwr2); } +#define bfin_iwr_save bfin_iwr_save + +static inline void +bfin_iwr_set_sup0(unsigned long *iwr0, unsigned long *iwr1, unsigned long *iwr2) +{ + bfin_iwr_save(0, IWR_ENABLE(SUPPLE_0_WAKEUP), 0, iwr0, iwr1, iwr2); +} + +#endif + +#endif + +#include <mach-common/pll.h> -#endif /* _MACH_PLL_H */ +#endif |