>>-----Original Message----- >>From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Tero >>Kristo >>Sent: Thursday, November 12, 2009 3:37 PM >>To: linux-omap@xxxxxxxxxxxxxxx >>Subject: [PATCH 1/5] OMAP3: Fixed ARM aux ctrl register save/restore >> >>From: Tero Kristo <tero.kristo@xxxxxxxxx> >> >>Current value is stored on SDRAM and it is written back during wakeup. >>Previously a static value of 0x72 was written there. >> >>Signed-off-by: Tero Kristo <tero.kristo@xxxxxxxxx> >>--- >> arch/arm/mach-omap2/sleep34xx.S | 13 +++++++++---- >> 1 files changed, 9 insertions(+), 4 deletions(-) >> >>diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S >>index 4707ba8..8bd5fc5 100644 >>--- a/arch/arm/mach-omap2/sleep34xx.S >>+++ b/arch/arm/mach-omap2/sleep34xx.S >>@@ -278,7 +278,8 @@ restore: >> mov r1, #0 @ set task id for ROM code in r1 >> mov r2, #4 @ set some flags in r2, r6 >> mov r6, #0xff >>- adr r3, write_aux_control_params @ r3 points to parameters >>+ ldr r4, scratchpad_base >>+ ldr r3, [r4, #0xBC] @ 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) >>@@ -286,14 +287,14 @@ restore: >> b logic_l1_restore >> l2_inv_api_params: >> .word 0x1, 0x00 >>-write_aux_control_params: >>- .word 0x1, 0x72 >> l2_inv_gp: >> /* Execute smi to invalidate L2 cache */ >> mov r12, #0x1 @ set up to invalide L2 >> smi: .word 0xE1600070 @ Call SMI monitor (smieq) >> /* Write to Aux control register to set some bits */ >>- mov r0, #0x72 >>+ ldr r4, scratchpad_base >>+ ldr r3, [r4,#0xBC] >>+ ldr r0, [r3,#4] >> mov r12, #0x3 >> .word 0xE1600070 @ Call SMI monitor (smieq) >> logic_l1_restore: >>@@ -304,6 +305,7 @@ logic_l1_restore: >> >> ldr r4, scratchpad_base >> ldr r3, [r4,#0xBC] >>+ adds r3, r3, #8 >> ldmia r3!, {r4-r6} >> mov sp, r4 >> msr spsr_cxsf, r5 >>@@ -420,6 +422,9 @@ usettbr0: >> save_context_wfi: >> /*b save_context_wfi*/ @ enable to debug save code >> 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} >> /* Check what that target sleep state is:stored in r1*/ >> /* 1 - Only L1 and logic lost */ >> /* 2 - Only L2 lost */ Looks Ok to me. Acked. >>-- >>1.5.4.3 >> >>-- >>To unsubscribe from this list: send the line "unsubscribe linux-omap" in >>the body of a message to majordomo@xxxxxxxxxxxxxxx >>More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
