blackfin: bf60x: add power management support

Add bf60x cpu pm callbacks and change blackfin pm framework to support bf60x.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

2 files changed, 664 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/dpmc.h b/arch/blackfin/include/asm/dpmc.h
index c4ec959dad78..b47399cda6ed 100644
--- a/arch/blackfin/include/asm/dpmc.h
+++ b/arch/blackfin/include/asm/dpmc.h
@@ -9,6 +9,637 @@
 #ifndef _BLACKFIN_DPMC_H_
 #define _BLACKFIN_DPMC_H_
 
+#ifdef __ASSEMBLY__
+#define PM_REG0  R7
+#define PM_REG1  R6
+#define PM_REG2  R5
+#define PM_REG3  R4
+#define PM_REG4  R3
+#define PM_REG5  R2
+#define PM_REG6  R1
+#define PM_REG7  R0
+#define PM_REG8  P5
+#define PM_REG9  P4
+#define PM_REG10 P3
+#define PM_REG11 P2
+#define PM_REG12 P1
+#define PM_REG13 P0
+
+#define PM_REGSET0  R7:7
+#define PM_REGSET1  R7:6
+#define PM_REGSET2  R7:5
+#define PM_REGSET3  R7:4
+#define PM_REGSET4  R7:3
+#define PM_REGSET5  R7:2
+#define PM_REGSET6  R7:1
+#define PM_REGSET7  R7:0
+#define PM_REGSET8  R7:0, P5:5
+#define PM_REGSET9  R7:0, P5:4
+#define PM_REGSET10 R7:0, P5:3
+#define PM_REGSET11 R7:0, P5:2
+#define PM_REGSET12 R7:0, P5:1
+#define PM_REGSET13 R7:0, P5:0
+
+#define _PM_PUSH(n, x, w, base) PM_REG##n = w[FP + ((x) - (base))];
+#define _PM_POP(n, x, w, base)  w[FP + ((x) - (base))] = PM_REG##n;
+#define PM_PUSH_SYNC(n)         [--sp] = (PM_REGSET##n);
+#define PM_POP_SYNC(n)          (PM_REGSET##n) = [sp++];
+#define PM_PUSH(n, x)		PM_REG##n = [FP++];
+#define PM_POP(n, x)            [FP--] = PM_REG##n;
+#define PM_CORE_PUSH(n, x)      _PM_PUSH(n, x, , COREMMR_BASE)
+#define PM_CORE_POP(n, x)       _PM_POP(n, x, , COREMMR_BASE)
+#define PM_SYS_PUSH(n, x)       _PM_PUSH(n, x, , SYSMMR_BASE)
+#define PM_SYS_POP(n, x)        _PM_POP(n, x, , SYSMMR_BASE)
+#define PM_SYS_PUSH16(n, x)     _PM_PUSH(n, x, w, SYSMMR_BASE)
+#define PM_SYS_POP16(n, x)      _PM_POP(n, x, w, SYSMMR_BASE)
+
+
+	.macro bfin_cpu_reg_save
+	/*
+	 * Save the core regs early so we can blow them away when
+	 * saving/restoring MMR states
+	 */
+	[--sp] = (R7:0, P5:0);
+	[--sp] = fp;
+	[--sp] = usp;
+
+	[--sp] = i0;
+	[--sp] = i1;
+	[--sp] = i2;
+	[--sp] = i3;
+
+	[--sp] = m0;
+	[--sp] = m1;
+	[--sp] = m2;
+	[--sp] = m3;
+
+	[--sp] = l0;
+	[--sp] = l1;
+	[--sp] = l2;
+	[--sp] = l3;
+
+	[--sp] = b0;
+	[--sp] = b1;
+	[--sp] = b2;
+	[--sp] = b3;
+	[--sp] = a0.x;
+	[--sp] = a0.w;
+	[--sp] = a1.x;
+	[--sp] = a1.w;
+
+	[--sp] = LC0;
+	[--sp] = LC1;
+	[--sp] = LT0;
+	[--sp] = LT1;
+	[--sp] = LB0;
+	[--sp] = LB1;
+
+	/* We can't push RETI directly as that'll change IPEND[4] */
+	r7 = RETI;
+	[--sp] = RETS;
+	[--sp] = ASTAT;
+	[--sp] = CYCLES;
+	[--sp] = CYCLES2;
+	[--sp] = SYSCFG;
+	[--sp] = RETX;
+	[--sp] = SEQSTAT;
+	[--sp] = r7;
+
+	/* Save first func arg in M3 */
+	M3 = R0;
+	.endm
+
+	.macro bfin_cpu_reg_restore
+	/* Restore Core Registers */
+	RETI = [sp++];
+	SEQSTAT = [sp++];
+	RETX = [sp++];
+	SYSCFG = [sp++];
+	CYCLES2 = [sp++];
+	CYCLES = [sp++];
+	ASTAT = [sp++];
+	RETS = [sp++];
+
+	LB1 = [sp++];
+	LB0 = [sp++];
+	LT1 = [sp++];
+	LT0 = [sp++];
+	LC1 = [sp++];
+	LC0 = [sp++];
+
+	a1.w = [sp++];
+	a1.x = [sp++];
+	a0.w = [sp++];
+	a0.x = [sp++];
+	b3 = [sp++];
+	b2 = [sp++];
+	b1 = [sp++];
+	b0 = [sp++];
+
+	l3 = [sp++];
+	l2 = [sp++];
+	l1 = [sp++];
+	l0 = [sp++];
+
+	m3 = [sp++];
+	m2 = [sp++];
+	m1 = [sp++];
+	m0 = [sp++];
+
+	i3 = [sp++];
+	i2 = [sp++];
+	i1 = [sp++];
+	i0 = [sp++];
+
+	usp = [sp++];
+	fp = [sp++];
+	(R7:0, P5:0) = [sp++];
+
+	.endm
+
+	.macro bfin_sys_mmr_save
+	/* Save system MMRs */
+	FP.H = hi(SYSMMR_BASE);
+	FP.L = lo(SYSMMR_BASE);
+#ifdef SIC_IMASK0
+	PM_SYS_PUSH(0, SIC_IMASK0)
+	PM_SYS_PUSH(1, SIC_IMASK1)
+# ifdef SIC_IMASK2
+	PM_SYS_PUSH(2, SIC_IMASK2)
+# endif
+#else
+# ifdef SIC_IMASK
+	PM_SYS_PUSH(0, SIC_IMASK)
+# endif
+#endif
+
+#ifdef SIC_IAR0
+	PM_SYS_PUSH(3, SIC_IAR0)
+	PM_SYS_PUSH(4, SIC_IAR1)
+	PM_SYS_PUSH(5, SIC_IAR2)
+#endif
+#ifdef SIC_IAR3
+	PM_SYS_PUSH(6, SIC_IAR3)
+#endif
+#ifdef SIC_IAR4
+	PM_SYS_PUSH(7, SIC_IAR4)
+	PM_SYS_PUSH(8, SIC_IAR5)
+	PM_SYS_PUSH(9, SIC_IAR6)
+#endif
+#ifdef SIC_IAR7
+	PM_SYS_PUSH(10, SIC_IAR7)
+#endif
+#ifdef SIC_IAR8
+	PM_SYS_PUSH(11, SIC_IAR8)
+	PM_SYS_PUSH(12, SIC_IAR9)
+	PM_SYS_PUSH(13, SIC_IAR10)
+#endif
+	PM_PUSH_SYNC(13)
+#ifdef SIC_IAR11
+	PM_SYS_PUSH(0, SIC_IAR11)
+#endif
+
+#ifdef SIC_IWR
+	PM_SYS_PUSH(1, SIC_IWR)
+#endif
+#ifdef SIC_IWR0
+	PM_SYS_PUSH(1, SIC_IWR0)
+#endif
+#ifdef SIC_IWR1
+	PM_SYS_PUSH(2, SIC_IWR1)
+#endif
+#ifdef SIC_IWR2
+	PM_SYS_PUSH(3, SIC_IWR2)
+#endif
+
+#ifdef PINT0_ASSIGN
+	PM_SYS_PUSH(4, PINT0_MASK_SET)
+	PM_SYS_PUSH(5, PINT1_MASK_SET)
+	PM_SYS_PUSH(6, PINT2_MASK_SET)
+	PM_SYS_PUSH(7, PINT3_MASK_SET)
+	PM_SYS_PUSH(8, PINT0_ASSIGN)
+	PM_SYS_PUSH(9, PINT1_ASSIGN)
+	PM_SYS_PUSH(10, PINT2_ASSIGN)
+	PM_SYS_PUSH(11, PINT3_ASSIGN)
+	PM_SYS_PUSH(12, PINT0_INVERT_SET)
+	PM_SYS_PUSH(13, PINT1_INVERT_SET)
+	PM_PUSH_SYNC(13)
+	PM_SYS_PUSH(0, PINT2_INVERT_SET)
+	PM_SYS_PUSH(1, PINT3_INVERT_SET)
+	PM_SYS_PUSH(2, PINT0_EDGE_SET)
+	PM_SYS_PUSH(3, PINT1_EDGE_SET)
+	PM_SYS_PUSH(4, PINT2_EDGE_SET)
+	PM_SYS_PUSH(5, PINT3_EDGE_SET)
+#endif
+
+#ifdef SYSCR
+	PM_SYS_PUSH16(6, SYSCR)
+#endif
+
+#ifdef EBIU_AMGCTL
+	PM_SYS_PUSH16(7, EBIU_AMGCTL)
+	PM_SYS_PUSH(8, EBIU_AMBCTL0)
+	PM_SYS_PUSH(9, EBIU_AMBCTL1)
+#endif
+#ifdef EBIU_FCTL
+	PM_SYS_PUSH(10, EBIU_MBSCTL)
+	PM_SYS_PUSH(11, EBIU_MODE)
+	PM_SYS_PUSH(12, EBIU_FCTL)
+	PM_PUSH_SYNC(12)
+#else
+	PM_PUSH_SYNC(9)
+#endif
+	.endm
+
+
+	.macro bfin_sys_mmr_restore
+/* Restore System MMRs */
+	FP.H = hi(SYSMMR_BASE);
+	FP.L = lo(SYSMMR_BASE);
+
+#ifdef EBIU_FCTL
+	PM_POP_SYNC(12)
+	PM_SYS_POP(12, EBIU_FCTL)
+	PM_SYS_POP(11, EBIU_MODE)
+	PM_SYS_POP(10, EBIU_MBSCTL)
+#else
+	PM_POP_SYNC(9)
+#endif
+
+#ifdef EBIU_AMBCTL
+	PM_SYS_POP(9, EBIU_AMBCTL1)
+	PM_SYS_POP(8, EBIU_AMBCTL0)
+	PM_SYS_POP16(7, EBIU_AMGCTL)
+#endif
+
+#ifdef SYSCR
+	PM_SYS_POP16(6, SYSCR)
+#endif
+
+#ifdef PINT0_ASSIGN
+	PM_SYS_POP(5, PINT3_EDGE_SET)
+	PM_SYS_POP(4, PINT2_EDGE_SET)
+	PM_SYS_POP(3, PINT1_EDGE_SET)
+	PM_SYS_POP(2, PINT0_EDGE_SET)
+	PM_SYS_POP(1, PINT3_INVERT_SET)
+	PM_SYS_POP(0, PINT2_INVERT_SET)
+	PM_POP_SYNC(13)
+	PM_SYS_POP(13, PINT1_INVERT_SET)
+	PM_SYS_POP(12, PINT0_INVERT_SET)
+	PM_SYS_POP(11, PINT3_ASSIGN)
+	PM_SYS_POP(10, PINT2_ASSIGN)
+	PM_SYS_POP(9, PINT1_ASSIGN)
+	PM_SYS_POP(8, PINT0_ASSIGN)
+	PM_SYS_POP(7, PINT3_MASK_SET)
+	PM_SYS_POP(6, PINT2_MASK_SET)
+	PM_SYS_POP(5, PINT1_MASK_SET)
+	PM_SYS_POP(4, PINT0_MASK_SET)
+#endif
+
+#ifdef SIC_IWR2
+	PM_SYS_POP(3, SIC_IWR2)
+#endif
+#ifdef SIC_IWR1
+	PM_SYS_POP(2, SIC_IWR1)
+#endif
+#ifdef SIC_IWR0
+	PM_SYS_POP(1, SIC_IWR0)
+#endif
+#ifdef SIC_IWR
+	PM_SYS_POP(1, SIC_IWR)
+#endif
+
+#ifdef SIC_IAR11
+	PM_SYS_POP(0, SIC_IAR11)
+#endif
+	PM_POP_SYNC(13)
+#ifdef SIC_IAR8
+	PM_SYS_POP(13, SIC_IAR10)
+	PM_SYS_POP(12, SIC_IAR9)
+	PM_SYS_POP(11, SIC_IAR8)
+#endif
+#ifdef SIC_IAR7
+	PM_SYS_POP(10, SIC_IAR7)
+#endif
+#ifdef SIC_IAR6
+	PM_SYS_POP(9, SIC_IAR6)
+	PM_SYS_POP(8, SIC_IAR5)
+	PM_SYS_POP(7, SIC_IAR4)
+#endif
+#ifdef SIC_IAR3
+	PM_SYS_POP(6, SIC_IAR3)
+#endif
+#ifdef SIC_IAR0
+	PM_SYS_POP(5, SIC_IAR2)
+	PM_SYS_POP(4, SIC_IAR1)
+	PM_SYS_POP(3, SIC_IAR0)
+#endif
+#ifdef SIC_IMASK0
+# ifdef SIC_IMASK2
+	PM_SYS_POP(2, SIC_IMASK2)
+# endif
+	PM_SYS_POP(1, SIC_IMASK1)
+	PM_SYS_POP(0, SIC_IMASK0)
+#else
+# ifdef SIC_IMASK
+	PM_SYS_POP(0, SIC_IMASK)
+# endif
+#endif
+	.endm
+
+	.macro bfin_core_mmr_save
+	/* Save Core MMRs */
+	I0.H = hi(COREMMR_BASE);
+	I0.L = lo(COREMMR_BASE);
+	I1 = I0;
+	I2 = I0;
+	I3 = I0;
+	B0 = I0;
+	B1 = I0;
+	B2 = I0;
+	B3 = I0;
+	I1.L = lo(DCPLB_ADDR0);
+	I2.L = lo(DCPLB_DATA0);
+	I3.L = lo(ICPLB_ADDR0);
+	B0.L = lo(ICPLB_DATA0);
+	B1.L = lo(EVT2);
+	B2.L = lo(IMASK);
+	B3.L = lo(TCNTL);
+
+	/* Event Vectors */
+	FP = B1;
+	PM_PUSH(0, EVT2)
+	PM_PUSH(1, EVT3)
+	FP += 4;	/* EVT4 */
+	PM_PUSH(2, EVT5)
+	PM_PUSH(3, EVT6)
+	PM_PUSH(4, EVT7)
+	PM_PUSH(5, EVT8)
+	PM_PUSH_SYNC(5)
+
+	PM_PUSH(0, EVT9)
+	PM_PUSH(1, EVT10)
+	PM_PUSH(2, EVT11)
+	PM_PUSH(3, EVT12)
+	PM_PUSH(4, EVT13)
+	PM_PUSH(5, EVT14)
+	PM_PUSH(6, EVT15)
+
+	/* CEC */
+	FP = B2;
+	PM_PUSH(7, IMASK)
+	FP += 4;	/* IPEND */
+	PM_PUSH(8, ILAT)
+	PM_PUSH(9, IPRIO)
+
+	/* Core Timer */
+	FP = B3;
+	PM_PUSH(10, TCNTL)
+	PM_PUSH(11, TPERIOD)
+	PM_PUSH(12, TSCALE)
+	PM_PUSH(13, TCOUNT)
+	PM_PUSH_SYNC(13)
+
+	/* Misc non-contiguous registers */
+	FP = I0;
+	PM_CORE_PUSH(0, DMEM_CONTROL);
+	PM_CORE_PUSH(1, IMEM_CONTROL);
+	PM_CORE_PUSH(2, TBUFCTL);
+	PM_PUSH_SYNC(2)
+
+	/* DCPLB Addr */
+	FP = I1;
+	PM_PUSH(0, DCPLB_ADDR0)
+	PM_PUSH(1, DCPLB_ADDR1)
+	PM_PUSH(2, DCPLB_ADDR2)
+	PM_PUSH(3, DCPLB_ADDR3)
+	PM_PUSH(4, DCPLB_ADDR4)
+	PM_PUSH(5, DCPLB_ADDR5)
+	PM_PUSH(6, DCPLB_ADDR6)
+	PM_PUSH(7, DCPLB_ADDR7)
+	PM_PUSH(8, DCPLB_ADDR8)
+	PM_PUSH(9, DCPLB_ADDR9)
+	PM_PUSH(10, DCPLB_ADDR10)
+	PM_PUSH(11, DCPLB_ADDR11)
+	PM_PUSH(12, DCPLB_ADDR12)
+	PM_PUSH(13, DCPLB_ADDR13)
+	PM_PUSH_SYNC(13)
+	PM_PUSH(0, DCPLB_ADDR14)
+	PM_PUSH(1, DCPLB_ADDR15)
+
+	/* DCPLB Data */
+	FP = I2;
+	PM_PUSH(2, DCPLB_DATA0)
+	PM_PUSH(3, DCPLB_DATA1)
+	PM_PUSH(4, DCPLB_DATA2)
+	PM_PUSH(5, DCPLB_DATA3)
+	PM_PUSH(6, DCPLB_DATA4)
+	PM_PUSH(7, DCPLB_DATA5)
+	PM_PUSH(8, DCPLB_DATA6)
+	PM_PUSH(9, DCPLB_DATA7)
+	PM_PUSH(10, DCPLB_DATA8)
+	PM_PUSH(11, DCPLB_DATA9)
+	PM_PUSH(12, DCPLB_DATA10)
+	PM_PUSH(13, DCPLB_DATA11)
+	PM_PUSH_SYNC(13)
+	PM_PUSH(0, DCPLB_DATA12)
+	PM_PUSH(1, DCPLB_DATA13)
+	PM_PUSH(2, DCPLB_DATA14)
+	PM_PUSH(3, DCPLB_DATA15)
+
+	/* ICPLB Addr */
+	FP = I3;
+	PM_PUSH(4, ICPLB_ADDR0)
+	PM_PUSH(5, ICPLB_ADDR1)
+	PM_PUSH(6, ICPLB_ADDR2)
+	PM_PUSH(7, ICPLB_ADDR3)
+	PM_PUSH(8, ICPLB_ADDR4)
+	PM_PUSH(9, ICPLB_ADDR5)
+	PM_PUSH(10, ICPLB_ADDR6)
+	PM_PUSH(11, ICPLB_ADDR7)
+	PM_PUSH(12, ICPLB_ADDR8)
+	PM_PUSH(13, ICPLB_ADDR9)
+	PM_PUSH_SYNC(13)
+	PM_PUSH(0, ICPLB_ADDR10)
+	PM_PUSH(1, ICPLB_ADDR11)
+	PM_PUSH(2, ICPLB_ADDR12)
+	PM_PUSH(3, ICPLB_ADDR13)
+	PM_PUSH(4, ICPLB_ADDR14)
+	PM_PUSH(5, ICPLB_ADDR15)
+
+	/* ICPLB Data */
+	FP = B0;
+	PM_PUSH(6, ICPLB_DATA0)
+	PM_PUSH(7, ICPLB_DATA1)
+	PM_PUSH(8, ICPLB_DATA2)
+	PM_PUSH(9, ICPLB_DATA3)
+	PM_PUSH(10, ICPLB_DATA4)
+	PM_PUSH(11, ICPLB_DATA5)
+	PM_PUSH(12, ICPLB_DATA6)
+	PM_PUSH(13, ICPLB_DATA7)
+	PM_PUSH_SYNC(13)
+	PM_PUSH(0, ICPLB_DATA8)
+	PM_PUSH(1, ICPLB_DATA9)
+	PM_PUSH(2, ICPLB_DATA10)
+	PM_PUSH(3, ICPLB_DATA11)
+	PM_PUSH(4, ICPLB_DATA12)
+	PM_PUSH(5, ICPLB_DATA13)
+	PM_PUSH(6, ICPLB_DATA14)
+	PM_PUSH(7, ICPLB_DATA15)
+	PM_PUSH_SYNC(7)
+	.endm
+
+	.macro bfin_core_mmr_restore
+	/* Restore Core MMRs */
+	I0.H = hi(COREMMR_BASE);
+	I0.L = lo(COREMMR_BASE);
+	I1 = I0;
+	I2 = I0;
+	I3 = I0;
+	B0 = I0;
+	B1 = I0;
+	B2 = I0;
+	B3 = I0;
+	I1.L = lo(DCPLB_ADDR15);
+	I2.L = lo(DCPLB_DATA15);
+	I3.L = lo(ICPLB_ADDR15);
+	B0.L = lo(ICPLB_DATA15);
+	B1.L = lo(EVT15);
+	B2.L = lo(IPRIO);
+	B3.L = lo(TCOUNT);
+
+	/* ICPLB Data */
+	FP = B0;
+	PM_POP_SYNC(7)
+	PM_POP(7, ICPLB_DATA15)
+	PM_POP(6, ICPLB_DATA14)
+	PM_POP(5, ICPLB_DATA13)
+	PM_POP(4, ICPLB_DATA12)
+	PM_POP(3, ICPLB_DATA11)
+	PM_POP(2, ICPLB_DATA10)
+	PM_POP(1, ICPLB_DATA9)
+	PM_POP(0, ICPLB_DATA8)
+	PM_POP_SYNC(13)
+	PM_POP(13, ICPLB_DATA7)
+	PM_POP(12, ICPLB_DATA6)
+	PM_POP(11, ICPLB_DATA5)
+	PM_POP(10, ICPLB_DATA4)
+	PM_POP(9, ICPLB_DATA3)
+	PM_POP(8, ICPLB_DATA2)
+	PM_POP(7, ICPLB_DATA1)
+	PM_POP(6, ICPLB_DATA0)
+
+	/* ICPLB Addr */
+	FP = I3;
+	PM_POP(5, ICPLB_ADDR15)
+	PM_POP(4, ICPLB_ADDR14)
+	PM_POP(3, ICPLB_ADDR13)
+	PM_POP(2, ICPLB_ADDR12)
+	PM_POP(1, ICPLB_ADDR11)
+	PM_POP(0, ICPLB_ADDR10)
+	PM_POP_SYNC(13)
+	PM_POP(13, ICPLB_ADDR9)
+	PM_POP(12, ICPLB_ADDR8)
+	PM_POP(11, ICPLB_ADDR7)
+	PM_POP(10, ICPLB_ADDR6)
+	PM_POP(9, ICPLB_ADDR5)
+	PM_POP(8, ICPLB_ADDR4)
+	PM_POP(7, ICPLB_ADDR3)
+	PM_POP(6, ICPLB_ADDR2)
+	PM_POP(5, ICPLB_ADDR1)
+	PM_POP(4, ICPLB_ADDR0)
+
+	/* DCPLB Data */
+	FP = I2;
+	PM_POP(3, DCPLB_DATA15)
+	PM_POP(2, DCPLB_DATA14)
+	PM_POP(1, DCPLB_DATA13)
+	PM_POP(0, DCPLB_DATA12)
+	PM_POP_SYNC(13)
+	PM_POP(13, DCPLB_DATA11)
+	PM_POP(12, DCPLB_DATA10)
+	PM_POP(11, DCPLB_DATA9)
+	PM_POP(10, DCPLB_DATA8)
+	PM_POP(9, DCPLB_DATA7)
+	PM_POP(8, DCPLB_DATA6)
+	PM_POP(7, DCPLB_DATA5)
+	PM_POP(6, DCPLB_DATA4)
+	PM_POP(5, DCPLB_DATA3)
+	PM_POP(4, DCPLB_DATA2)
+	PM_POP(3, DCPLB_DATA1)
+	PM_POP(2, DCPLB_DATA0)
+
+	/* DCPLB Addr */
+	FP = I1;
+	PM_POP(1, DCPLB_ADDR15)
+	PM_POP(0, DCPLB_ADDR14)
+	PM_POP_SYNC(13)
+	PM_POP(13, DCPLB_ADDR13)
+	PM_POP(12, DCPLB_ADDR12)
+	PM_POP(11, DCPLB_ADDR11)
+	PM_POP(10, DCPLB_ADDR10)
+	PM_POP(9, DCPLB_ADDR9)
+	PM_POP(8, DCPLB_ADDR8)
+	PM_POP(7, DCPLB_ADDR7)
+	PM_POP(6, DCPLB_ADDR6)
+	PM_POP(5, DCPLB_ADDR5)
+	PM_POP(4, DCPLB_ADDR4)
+	PM_POP(3, DCPLB_ADDR3)
+	PM_POP(2, DCPLB_ADDR2)
+	PM_POP(1, DCPLB_ADDR1)
+	PM_POP(0, DCPLB_ADDR0)
+
+
+	/* Misc non-contiguous registers */
+
+	/* icache & dcache will enable later 
+	   drop IMEM_CONTROL, DMEM_CONTROL pop
+	*/
+	FP = I0;
+	PM_POP_SYNC(2)
+	PM_CORE_POP(2, TBUFCTL)
+	PM_CORE_POP(1, IMEM_CONTROL)
+	PM_CORE_POP(0, DMEM_CONTROL)
+
+	/* Core Timer */
+	FP = B3;
+	R0 = 0x1;
+	[FP - 0xC] = R0;
+
+	PM_POP_SYNC(13)
+	FP = B3;
+	PM_POP(13, TCOUNT)
+	PM_POP(12, TSCALE)
+	PM_POP(11, TPERIOD)
+	PM_POP(10, TCNTL)
+
+	/* CEC */
+	FP = B2;
+	PM_POP(9, IPRIO)
+	PM_POP(8, ILAT)
+	FP += -4;	/* IPEND */
+	PM_POP(7, IMASK)
+
+	/* Event Vectors */
+	FP = B1;
+	PM_POP(6, EVT15)
+	PM_POP(5, EVT14)
+	PM_POP(4, EVT13)
+	PM_POP(3, EVT12)
+	PM_POP(2, EVT11)
+	PM_POP(1, EVT10)
+	PM_POP(0, EVT9)
+	PM_POP_SYNC(5)
+	PM_POP(5, EVT8)
+	PM_POP(4, EVT7)
+	PM_POP(3, EVT6)
+	PM_POP(2, EVT5)
+	FP += -4;	/* EVT4 */
+	PM_POP(1, EVT3)
+	PM_POP(0, EVT2)
+	.endm
+#endif
+
 #include <mach/pll.h>
 
 /* PLL_CTL Masks */
@@ -114,6 +745,7 @@
 #define USBWE			0x0800	/* Enable USB Wakeup From Hibernate */
 #endif
 
+
 #ifndef __ASSEMBLY__
 
 void sleep_mode(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
diff --git a/arch/blackfin/include/asm/pm.h b/arch/blackfin/include/asm/pm.h
new file mode 100644
index 000000000000..da63b46e0c68
--- /dev/null
+++ b/arch/blackfin/include/asm/pm.h
@@ -0,0 +1,32 @@
+/*
+ * Blackfin bf609 power management
+ *
+ * Copyright 2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2
+ */
+
+#ifndef __PM_H__
+#define __PM_H__
+
+#include <mach/pm.h>
+#include <linux/suspend.h>
+
+struct bfin_cpu_pm_fns {
+	void    (*save)(unsigned long *);
+	void    (*restore)(unsigned long *);
+	int     (*valid)(suspend_state_t state);
+	void    (*enter)(suspend_state_t state);
+	int     (*prepare)(void);
+	void    (*finish)(void);
+};
+
+extern struct bfin_cpu_pm_fns *bfin_cpu_pm;
+
+# ifdef CONFIG_BFIN_COREB
+void bfin_coreb_start(void);
+void bfin_coreb_stop(void);
+void bfin_coreb_reset(void);
+# endif
+
+#endif