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[ARM] 3142/1: OMAP 2/5: Update files common to omap1 and omap2

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Patch from Tony Lindgren

This patch syncs the mainline kernel with linux-omap tree.
The highlights of the patch are:

- Serial port and framebuffer init improvments by Imre Deak

- Common omap pin mux framework by Tony Lindgren

- Common omap clock framework by Tony Lindren

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Tony Lindgren
2005-11-10 14:26:50 +00:00
committed by Russell King
parent 3179a01939
commit 1a8bfa1eb9
14 changed files with 1661 additions and 1817 deletions
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139
arch/arm/plat-omap/sleep.S
View File

@@ -1,7 +1,7 @@
/*
* linux/arch/arm/plat-omap/sleep.S
*
* Low-level OMAP1510/1610 sleep/wakeUp support
* Low-level OMAP730/1510/1610 sleep/wakeUp support
*
* Initial SA1110 code:
* Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
@@ -52,7 +52,57 @@
* processor specific functions here.
*/
#ifdef CONFIG_ARCH_OMAP1510
#if defined(CONFIG_ARCH_OMAP730)
ENTRY(omap730_idle_loop_suspend)
stmfd sp!, {r0 - r12, lr} @ save registers on stack
@ load base address of ARM_IDLECT1 and ARM_IDLECT2
mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
@ turn off clock domains
@ get ARM_IDLECT2 into r2
ldrh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
mov r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff
orr r5, r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff00
strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
@ request ARM idle
@ get ARM_IDLECT1 into r1
ldrh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
orr r3, r1, #OMAP730_IDLE_LOOP_REQUEST & 0xffff
strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
mov r5, #IDLE_WAIT_CYCLES & 0xff
orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00
l_730: subs r5, r5, #1
bne l_730
/*
* Let's wait for the next clock tick to wake us up.
*/
mov r0, #0
mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt
/*
* omap730_idle_loop_suspend()'s resume point.
*
* It will just start executing here, so we'll restore stuff from the
* stack, reset the ARM_IDLECT1 and ARM_IDLECT2.
*/
@ restore ARM_IDLECT1 and ARM_IDLECT2 and return
@ r1 has ARM_IDLECT1 and r2 still has ARM_IDLECT2
strh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
strh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
ldmfd sp!, {r0 - r12, pc} @ restore regs and return
ENTRY(omap730_idle_loop_suspend_sz)
.word . - omap730_idle_loop_suspend
#endif /* CONFIG_ARCH_OMAP730 */
#ifdef CONFIG_ARCH_OMAP15XX
ENTRY(omap1510_idle_loop_suspend)
stmfd sp!, {r0 - r12, lr} @ save registers on stack
@@ -100,7 +150,7 @@ l_1510: subs r5, r5, #1
ENTRY(omap1510_idle_loop_suspend_sz)
.word . - omap1510_idle_loop_suspend
#endif /* CONFIG_ARCH_OMAP1510 */
#endif /* CONFIG_ARCH_OMAP15XX */
#if defined(CONFIG_ARCH_OMAP16XX)
ENTRY(omap1610_idle_loop_suspend)
@@ -169,7 +219,86 @@ ENTRY(omap1610_idle_loop_suspend_sz)
*
*/
#ifdef CONFIG_ARCH_OMAP1510
#if defined(CONFIG_ARCH_OMAP730)
ENTRY(omap730_cpu_suspend)
@ save registers on stack
stmfd sp!, {r0 - r12, lr}
@ Drain write cache
mov r4, #0
mcr p15, 0, r0, c7, c10, 4
nop
@ load base address of Traffic Controller
mov r6, #TCMIF_ASM_BASE & 0xff000000
orr r6, r6, #TCMIF_ASM_BASE & 0x00ff0000
orr r6, r6, #TCMIF_ASM_BASE & 0x0000ff00
@ prepare to put SDRAM into self-refresh manually
ldr r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
orr r9, r7, #SELF_REFRESH_MODE & 0xff000000
orr r9, r9, #SELF_REFRESH_MODE & 0x000000ff
str r9, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
@ prepare to put EMIFS to Sleep
ldr r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
orr r9, r8, #IDLE_EMIFS_REQUEST & 0xff
str r9, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
@ load base address of ARM_IDLECT1 and ARM_IDLECT2
mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
@ turn off clock domains
@ do not disable PERCK (0x04)
mov r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff
orr r5, r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff00
strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
@ request ARM idle
mov r3, #OMAP730_IDLECT1_SLEEP_VAL & 0xff
orr r3, r3, #OMAP730_IDLECT1_SLEEP_VAL & 0xff00
strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
@ disable instruction cache
mrc p15, 0, r9, c1, c0, 0
bic r2, r9, #0x1000
mcr p15, 0, r2, c1, c0, 0
nop
/*
* Let's wait for the next wake up event to wake us up. r0 can't be
* used here because r0 holds ARM_IDLECT1
*/
mov r2, #0
mcr p15, 0, r2, c7, c0, 4 @ wait for interrupt
/*
* omap730_cpu_suspend()'s resume point.
*
* It will just start executing here, so we'll restore stuff from the
* stack.
*/
@ re-enable Icache
mcr p15, 0, r9, c1, c0, 0
@ reset the ARM_IDLECT1 and ARM_IDLECT2.
strh r1, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
strh r0, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
@ Restore EMIFF controls
str r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
str r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
@ restore regs and return
ldmfd sp!, {r0 - r12, pc}
ENTRY(omap730_cpu_suspend_sz)
.word . - omap730_cpu_suspend
#endif /* CONFIG_ARCH_OMAP730 */
#ifdef CONFIG_ARCH_OMAP15XX
ENTRY(omap1510_cpu_suspend)
@ save registers on stack
@@ -241,7 +370,7 @@ l_1510_2:
ENTRY(omap1510_cpu_suspend_sz)
.word . - omap1510_cpu_suspend
#endif /* CONFIG_ARCH_OMAP1510 */
#endif /* CONFIG_ARCH_OMAP15XX */
#if defined(CONFIG_ARCH_OMAP16XX)
ENTRY(omap1610_cpu_suspend)