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ARM: OMAP1: Remove omap_sram_idle()
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This patch removes omap_sram_idle() that is no longer used.

The function called in pm_idle is omap_sram_suspend, omap_sram_idle() is
not used anywhere in omap1.

Signed-off-by: Vivek Kutal <vivek.kutal@celunite.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Vivek Kutal authored and Tony Lindgren committed Feb 8, 2008
1 parent 010bb0c commit feb72f3
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Showing 2 changed files with 1 addition and 169 deletions.
9 changes: 1 addition & 8 deletions arch/arm/mach-omap1/pm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,6 @@ static struct kobj_attribute sleep_while_idle_attr =

#endif

static void (*omap_sram_idle)(void) = NULL;
static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;

/*
Expand Down Expand Up @@ -676,23 +675,17 @@ static int __init omap_pm_init(void)
* memory the MPU can see when it wakes up.
*/
if (cpu_is_omap730()) {
omap_sram_idle = omap_sram_push(omap730_idle_loop_suspend,
omap730_idle_loop_suspend_sz);
omap_sram_suspend = omap_sram_push(omap730_cpu_suspend,
omap730_cpu_suspend_sz);
} else if (cpu_is_omap15xx()) {
omap_sram_idle = omap_sram_push(omap1510_idle_loop_suspend,
omap1510_idle_loop_suspend_sz);
omap_sram_suspend = omap_sram_push(omap1510_cpu_suspend,
omap1510_cpu_suspend_sz);
} else if (cpu_is_omap16xx()) {
omap_sram_idle = omap_sram_push(omap1610_idle_loop_suspend,
omap1610_idle_loop_suspend_sz);
omap_sram_suspend = omap_sram_push(omap1610_cpu_suspend,
omap1610_cpu_suspend_sz);
}

if (omap_sram_idle == NULL || omap_sram_suspend == NULL) {
if (omap_sram_suspend == NULL) {
printk(KERN_ERR "PM not initialized: Missing SRAM support\n");
return -ENODEV;
}
Expand Down
161 changes: 0 additions & 161 deletions arch/arm/mach-omap1/sleep.S
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Original file line number Diff line number Diff line change
Expand Up @@ -39,167 +39,6 @@

.text

/*
* Forces OMAP into idle state
*
* omapXXXX_idle_loop_suspend()
*
* Note: This code get's copied to internal SRAM at boot. When the OMAP
* wakes up it continues execution at the point it went to sleep.
*
* Note: Because of slightly different configuration values we have
* processor specific functions here.
*/

#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

@ 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, #OMAP1510_IDLE_CLOCK_DOMAINS & 0xff
orr r5, r5, #OMAP1510_IDLE_CLOCK_DOMAINS & 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, #OMAP1510_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_1510: subs r5, r5, #1
bne l_1510
/*
* 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
/*
* omap1510_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(omap1510_idle_loop_suspend_sz)
.word . - omap1510_idle_loop_suspend
#endif /* CONFIG_ARCH_OMAP15XX */

#if defined(CONFIG_ARCH_OMAP16XX)
ENTRY(omap1610_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, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff
orr r5, r5, #OMAP1610_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, #OMAP1610_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_1610: subs r5, r5, #1
bne l_1610
/*
* 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
/*
* omap1610_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(omap1610_idle_loop_suspend_sz)
.word . - omap1610_idle_loop_suspend
#endif /* CONFIG_ARCH_OMAP16XX */

/*
* Forces OMAP into deep sleep state
Expand Down

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