---

yaml
---
r: 184783
b: refs/heads/master
c: 79dcfdd
h: refs/heads/master
i:
  184781: fcf430b
  184779: 703e958
  184775: 09ed132
  184767: b57ce44
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a89b6f006201469a74dfc0cc4e953648b6a1c69d
+refs/heads/master: 79dcfdd407208cba06bd446e93b0809df1cf10d1

trunk/arch/arm/mach-omap2/sleep34xx.S

@@ -284,6 +284,21 @@ restore:
 	mcr	p15, 0, r0, c7, c10, 5	@ data memory barrier
 	.word	0xE1600071		@ call SMI monitor (smi #1)
 
+#ifdef CONFIG_OMAP3_L2_AUX_SECURE_SAVE_RESTORE
+	/* Restore L2 aux control register */
+	@ set service ID for PPA
+	mov	r0, #CONFIG_OMAP3_L2_AUX_SECURE_SERVICE_SET_ID
+	mov	r12, r0		@ copy service ID in r12
+	mov	r1, #0		@ set task ID for ROM code in r1
+	mov	r2, #4		@ set some flags in r2, r6
+	mov	r6, #0xff
+	ldr	r4, scratchpad_base
+	ldr	r3, [r4, #0xBC]
+	adds	r3, r3, #8	@ r3 points to parameters
+	mcr	p15, 0, r0, c7, c10, 4	@ data write barrier
+	mcr	p15, 0, r0, c7, c10, 5	@ data memory barrier
+	.word	0xE1600071		@ call SMI monitor (smi #1)
+#endif
 	b	logic_l1_restore
 l2_inv_api_params:
 	.word   0x1, 0x00
@@ -297,6 +312,11 @@ smi:    .word 0xE1600070		@ Call SMI monitor (smieq)
 	ldr	r0, [r3,#4]
 	mov	r12, #0x3
 	.word 0xE1600070	@ Call SMI monitor (smieq)
+	ldr	r4, scratchpad_base
+	ldr	r3, [r4,#0xBC]
+	ldr	r0, [r3,#12]
+	mov	r12, #0x2
+	.word 0xE1600070	@ Call SMI monitor (smieq)
 logic_l1_restore:
 	mov	r1, #0
 	/* Invalidate all instruction caches to PoU
@@ -305,7 +325,7 @@ logic_l1_restore:
 
 	ldr	r4, scratchpad_base
 	ldr	r3, [r4,#0xBC]
-	adds	r3, r3, #8
+	adds	r3, r3, #16
 	ldmia	r3!, {r4-r6}
 	mov	sp, r4
 	msr	spsr_cxsf, r5
@@ -424,7 +444,9 @@ save_context_wfi:
 	mov	r8, r0 /* Store SDRAM address in r8 */
 	mrc	p15, 0, r5, c1, c0, 1	@ Read Auxiliary Control Register
 	mov	r4, #0x1		@ Number of parameters for restore call
-	stmia	r8!, {r4-r5}
+	stmia	r8!, {r4-r5}		@ Push parameters for restore call
+	mrc	p15, 1, r5, c9, c0, 2	@ Read L2 AUX ctrl register
+	stmia	r8!, {r4-r5}		@ Push parameters for restore call
         /* Check what that target sleep state is:stored in r1*/
         /* 1 - Only L1 and logic lost */
         /* 2 - Only L2 lost */

trunk/arch/arm/plat-omap/Kconfig

@@ -135,6 +135,23 @@ config OMAP_32K_TIMER
 
 endchoice
 
+config OMAP3_L2_AUX_SECURE_SAVE_RESTORE
+	bool "OMAP3 HS/EMU save and restore for L2 AUX control register"
+	depends on ARCH_OMAP3 && PM
+	default n
+	help
+	  Without this option, L2 Auxiliary control register contents are
+	  lost during off-mode entry on HS/EMU devices. This feature
+	  requires support from PPA / boot-loader in HS/EMU devices, which
+	  currently does not exist by default.
+
+config OMAP3_L2_AUX_SECURE_SERVICE_SET_ID
+	int "Service ID for the support routine to set L2 AUX control"
+	depends on OMAP3_L2_AUX_SECURE_SAVE_RESTORE
+	default 43
+	help
+	  PPA routine service ID for setting L2 auxiliary control register.
+
 config OMAP_32K_TIMER_HZ
 	int "Kernel internal timer frequency for 32KHz timer"
 	range 32 1024