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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/mach-sa1100/sleep.S
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-sa1100/sleep.S')
-rw-r--r--ANDROID_3.4.5/arch/arm/mach-sa1100/sleep.S143
1 files changed, 0 insertions, 143 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-sa1100/sleep.S b/ANDROID_3.4.5/arch/arm/mach-sa1100/sleep.S
deleted file mode 100644
index 30cc6721..00000000
--- a/ANDROID_3.4.5/arch/arm/mach-sa1100/sleep.S
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * SA11x0 Assembler Sleep/WakeUp Management Routines
- *
- * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License.
- *
- * History:
- *
- * 2001-02-06: Cliff Brake Initial code
- *
- * 2001-08-29: Nicolas Pitre Simplified.
- *
- * 2002-05-27: Nicolas Pitre Revisited, more cleanup and simplification.
- * Storage is on the stack now.
- */
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-#include <mach/hardware.h>
-
- .text
-/*
- * sa1100_finish_suspend()
- *
- * Causes sa11x0 to enter sleep state
- *
- * Must be aligned to a cacheline.
- */
- .balign 32
-ENTRY(sa1100_finish_suspend)
- @ disable clock switching
- mcr p15, 0, r1, c15, c2, 2
-
- ldr r6, =MDREFR
- ldr r4, [r6]
- orr r4, r4, #MDREFR_K1DB2
- ldr r5, =PPCR
-
- @ Pre-load __udelay into the I-cache
- mov r0, #1
- bl __udelay
- mov r0, r0
-
- @ The following must all exist in a single cache line to
- @ avoid accessing memory until this sequence is complete,
- @ otherwise we occasionally hang.
-
- @ Adjust memory timing before lowering CPU clock
- str r4, [r6]
-
- @ delay 90us and set CPU PLL to lowest speed
- @ fixes resume problem on high speed SA1110
- mov r0, #90
- bl __udelay
- mov r1, #0
- str r1, [r5]
- mov r0, #90
- bl __udelay
-
- /*
- * SA1110 SDRAM controller workaround. register values:
- *
- * r0 = &MSC0
- * r1 = &MSC1
- * r2 = &MSC2
- * r3 = MSC0 value
- * r4 = MSC1 value
- * r5 = MSC2 value
- * r6 = &MDREFR
- * r7 = first MDREFR value
- * r8 = second MDREFR value
- * r9 = &MDCNFG
- * r10 = MDCNFG value
- * r11 = third MDREFR value
- * r12 = &PMCR
- * r13 = PMCR value (1)
- */
-
- ldr r0, =MSC0
- ldr r1, =MSC1
- ldr r2, =MSC2
-
- ldr r3, [r0]
- bic r3, r3, #FMsk(MSC_RT)
- bic r3, r3, #FMsk(MSC_RT)<<16
-
- ldr r4, [r1]
- bic r4, r4, #FMsk(MSC_RT)
- bic r4, r4, #FMsk(MSC_RT)<<16
-
- ldr r5, [r2]
- bic r5, r5, #FMsk(MSC_RT)
- bic r5, r5, #FMsk(MSC_RT)<<16
-
- ldr r7, [r6]
- bic r7, r7, #0x0000FF00
- bic r7, r7, #0x000000F0
- orr r8, r7, #MDREFR_SLFRSH
-
- ldr r9, =MDCNFG
- ldr r10, [r9]
- bic r10, r10, #(MDCNFG_DE0+MDCNFG_DE1)
- bic r10, r10, #(MDCNFG_DE2+MDCNFG_DE3)
-
- bic r11, r8, #MDREFR_SLFRSH
- bic r11, r11, #MDREFR_E1PIN
-
- ldr r12, =PMCR
-
- mov r13, #PMCR_SF
-
- b sa1110_sdram_controller_fix
-
- .align 5
-sa1110_sdram_controller_fix:
-
- @ Step 1 clear RT field of all MSCx registers
- str r3, [r0]
- str r4, [r1]
- str r5, [r2]
-
- @ Step 2 clear DRI field in MDREFR
- str r7, [r6]
-
- @ Step 3 set SLFRSH bit in MDREFR
- str r8, [r6]
-
- @ Step 4 clear DE bis in MDCNFG
- str r10, [r9]
-
- @ Step 5 clear DRAM refresh control register
- str r11, [r6]
-
- @ Wow, now the hardware suspend request pins can be used, that makes them functional for
- @ about 7 ns out of the entire time that the CPU is running!
-
- @ Step 6 set force sleep bit in PMCR
-
- str r13, [r12]
-
-20: b 20b @ loop waiting for sleep