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Merge branch 'pm-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-fixes-for-linus

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This commit is contained in:
Tony Lindgren 2010-01-20 18:20:47 -08:00
commit ccaae273c3
9 changed files with 95 additions and 45 deletions
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2
arch/arm/mach-omap2/cpuidle34xx.c
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@ -137,7 +137,7 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
local_irq_enable();
local_fiq_enable();
return (u32)timespec_to_ns(&ts_idle)/1000;
return ts_idle.tv_nsec / NSEC_PER_USEC + ts_idle.tv_sec * USEC_PER_SEC;
}
/**

18
arch/arm/mach-omap2/irq.c
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@ -274,4 +274,22 @@ void omap_intc_restore_context(void)
}
/* MIRs are saved and restore with other PRCM registers */
}
void omap3_intc_suspend(void)
{
/* A pending interrupt would prevent OMAP from entering suspend */
omap_ack_irq(0);
}
void omap3_intc_prepare_idle(void)
{
/* Disable autoidle as it can stall interrupt controller */
intc_bank_write_reg(0, &irq_banks[0], INTC_SYSCONFIG);
}
void omap3_intc_resume_idle(void)
{
/* Re-enable autoidle */
intc_bank_write_reg(1, &irq_banks[0], INTC_SYSCONFIG);
}
#endif /* CONFIG_ARCH_OMAP3 */

12
arch/arm/mach-omap2/pm-debug.c
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@ -54,8 +54,6 @@ int omap2_pm_debug;
regs[reg_count++].val = \
__raw_readl(OMAP2_L4_IO_ADDRESS(0x480fe000 + (off)))
static int __init pm_dbg_init(void);
void omap2_pm_dump(int mode, int resume, unsigned int us)
{
struct reg {
@ -167,6 +165,8 @@ struct dentry *pm_dbg_dir;
static int pm_dbg_init_done;
static int __init pm_dbg_init(void);
enum {
DEBUG_FILE_COUNTERS = 0,
DEBUG_FILE_TIMERS,
@ -488,9 +488,11 @@ int pm_dbg_regset_init(int reg_set)
static int pwrdm_suspend_get(void *data, u64 *val)
{
*val = omap3_pm_get_suspend_state((struct powerdomain *)data);
int ret;
ret = omap3_pm_get_suspend_state((struct powerdomain *)data);
*val = ret;
if (*val >= 0)
if (ret >= 0)
return 0;
return *val;
}
@ -604,6 +606,4 @@ static int __init pm_dbg_init(void)
}
arch_initcall(pm_dbg_init);
#else
void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) {}
#endif

8
arch/arm/mach-omap2/pm.h
View File

@ -32,12 +32,16 @@ extern struct omap_dm_timer *gptimer_wakeup;
#ifdef CONFIG_PM_DEBUG
extern void omap2_pm_dump(int mode, int resume, unsigned int us);
extern int omap2_pm_debug;
#else
#define omap2_pm_dump(mode, resume, us) do {} while (0);
#define omap2_pm_debug 0
#endif
#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
extern int pm_dbg_regset_save(int reg_set);
extern int pm_dbg_regset_init(int reg_set);
#else
#define omap2_pm_dump(mode, resume, us) do {} while (0);
#define omap2_pm_debug 0
#define pm_dbg_update_time(pwrdm, prev) do {} while (0);
#define pm_dbg_regset_save(reg_set) do {} while (0);
#define pm_dbg_regset_init(reg_set) do {} while (0);

47
arch/arm/mach-omap2/pm34xx.c
View File

@ -26,6 +26,7 @@
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <plat/sram.h>
#include <plat/clockdomain.h>
@ -126,7 +127,15 @@ static void omap3_core_save_context(void)
/* wait for the save to complete */
while (!(omap_ctrl_readl(OMAP343X_CONTROL_GENERAL_PURPOSE_STATUS)
& PADCONF_SAVE_DONE))
;
udelay(1);
/*
* Force write last pad into memory, as this can fail in some
* cases according to erratas 1.157, 1.185
*/
omap_ctrl_writel(omap_ctrl_readl(OMAP343X_PADCONF_ETK_D14),
OMAP343X_CONTROL_MEM_WKUP + 0x2a0);
/* Save the Interrupt controller context */
omap_intc_save_context();
/* Save the GPMC context */
@ -392,6 +401,7 @@ void omap_sram_idle(void)
prm_set_mod_reg_bits(OMAP3430_EN_IO, WKUP_MOD, PM_WKEN);
omap3_enable_io_chain();
}
omap3_intc_prepare_idle();
/*
* On EMU/HS devices ROM code restores a SRDC value
@ -438,6 +448,7 @@ void omap_sram_idle(void)
OMAP3430_GR_MOD,
OMAP3_PRM_VOLTCTRL_OFFSET);
}
omap3_intc_resume_idle();
/* PER */
if (per_next_state < PWRDM_POWER_ON) {
@ -578,6 +589,8 @@ static int omap3_pm_suspend(void)
}
omap_uart_prepare_suspend();
omap3_intc_suspend();
omap_sram_idle();
restore:
@ -835,6 +848,8 @@ static void __init prcm_setup_regs(void)
CM_AUTOIDLE);
}
omap_ctrl_writel(OMAP3430_AUTOIDLE, OMAP2_CONTROL_SYSCONFIG);
/*
* Set all plls to autoidle. This is needed until autoidle is
* enabled by clockfw
@ -875,15 +890,23 @@ static void __init prcm_setup_regs(void)
prm_write_mod_reg(OMAP3430_IO_EN | OMAP3430_WKUP_EN,
OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET);
/* Enable PM_WKEN to support DSS LPR */
prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS,
OMAP3430_DSS_MOD, PM_WKEN);
/* Enable wakeups in PER */
prm_write_mod_reg(OMAP3430_EN_GPIO2 | OMAP3430_EN_GPIO3 |
OMAP3430_EN_GPIO4 | OMAP3430_EN_GPIO5 |
OMAP3430_EN_GPIO6 | OMAP3430_EN_UART3,
OMAP3430_EN_GPIO6 | OMAP3430_EN_UART3 |
OMAP3430_EN_MCBSP2 | OMAP3430_EN_MCBSP3 |
OMAP3430_EN_MCBSP4,
OMAP3430_PER_MOD, PM_WKEN);
/* and allow them to wake up MPU */
prm_write_mod_reg(OMAP3430_GRPSEL_GPIO2 | OMAP3430_EN_GPIO3 |
OMAP3430_GRPSEL_GPIO4 | OMAP3430_EN_GPIO5 |
OMAP3430_GRPSEL_GPIO6 | OMAP3430_EN_UART3,
OMAP3430_GRPSEL_GPIO6 | OMAP3430_EN_UART3 |
OMAP3430_EN_MCBSP2 | OMAP3430_EN_MCBSP3 |
OMAP3430_EN_MCBSP4,
OMAP3430_PER_MOD, OMAP3430_PM_MPUGRPSEL);
/* Don't attach IVA interrupts */
@ -904,24 +927,6 @@ static void __init prcm_setup_regs(void)
/* Clear any pending PRCM interrupts */
prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
/* Don't attach IVA interrupts */
prm_write_mod_reg(0, WKUP_MOD, OMAP3430_PM_IVAGRPSEL);
prm_write_mod_reg(0, CORE_MOD, OMAP3430_PM_IVAGRPSEL1);
prm_write_mod_reg(0, CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3);
prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL);
/* Clear any pending 'reset' flags */
prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST);
prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST);
prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST);
prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST);
prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST);
prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST);
prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST);
/* Clear any pending PRCM interrupts */
prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
omap3_iva_idle();
omap3_d2d_idle();
}

11
arch/arm/mach-omap2/prcm.c
View File

@ -44,7 +44,6 @@ struct omap3_prcm_regs {
u32 iva2_cm_clksel2;
u32 cm_sysconfig;
u32 sgx_cm_clksel;
u32 wkup_cm_clksel;
u32 dss_cm_clksel;
u32 cam_cm_clksel;
u32 per_cm_clksel;
@ -53,7 +52,6 @@ struct omap3_prcm_regs {
u32 pll_cm_autoidle2;
u32 pll_cm_clksel4;
u32 pll_cm_clksel5;
u32 pll_cm_clken;
u32 pll_cm_clken2;
u32 cm_polctrl;
u32 iva2_cm_fclken;
@ -77,7 +75,6 @@ struct omap3_prcm_regs {
u32 usbhost_cm_iclken;
u32 iva2_cm_autiidle2;
u32 mpu_cm_autoidle2;
u32 pll_cm_autoidle;
u32 iva2_cm_clkstctrl;
u32 mpu_cm_clkstctrl;
u32 core_cm_clkstctrl;
@ -274,7 +271,6 @@ void omap3_prcm_save_context(void)
prcm_context.cm_sysconfig = __raw_readl(OMAP3430_CM_SYSCONFIG);
prcm_context.sgx_cm_clksel =
cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL);
prcm_context.wkup_cm_clksel = cm_read_mod_reg(WKUP_MOD, CM_CLKSEL);
prcm_context.dss_cm_clksel =
cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL);
prcm_context.cam_cm_clksel =
@ -291,8 +287,6 @@ void omap3_prcm_save_context(void)
cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4);
prcm_context.pll_cm_clksel5 =
cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5);
prcm_context.pll_cm_clken =
cm_read_mod_reg(PLL_MOD, CM_CLKEN);
prcm_context.pll_cm_clken2 =
cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2);
prcm_context.cm_polctrl = __raw_readl(OMAP3430_CM_POLCTRL);
@ -338,8 +332,6 @@ void omap3_prcm_save_context(void)
cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
prcm_context.mpu_cm_autoidle2 =
cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
prcm_context.pll_cm_autoidle =
cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
prcm_context.iva2_cm_clkstctrl =
cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSTCTRL);
prcm_context.mpu_cm_clkstctrl =
@ -431,7 +423,6 @@ void omap3_prcm_restore_context(void)
__raw_writel(prcm_context.cm_sysconfig, OMAP3430_CM_SYSCONFIG);
cm_write_mod_reg(prcm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD,
CM_CLKSEL);
cm_write_mod_reg(prcm_context.wkup_cm_clksel, WKUP_MOD, CM_CLKSEL);
cm_write_mod_reg(prcm_context.dss_cm_clksel, OMAP3430_DSS_MOD,
CM_CLKSEL);
cm_write_mod_reg(prcm_context.cam_cm_clksel, OMAP3430_CAM_MOD,
@ -448,7 +439,6 @@ void omap3_prcm_restore_context(void)
OMAP3430ES2_CM_CLKSEL4);
cm_write_mod_reg(prcm_context.pll_cm_clksel5, PLL_MOD,
OMAP3430ES2_CM_CLKSEL5);
cm_write_mod_reg(prcm_context.pll_cm_clken, PLL_MOD, CM_CLKEN);
cm_write_mod_reg(prcm_context.pll_cm_clken2, PLL_MOD,
OMAP3430ES2_CM_CLKEN2);
__raw_writel(prcm_context.cm_polctrl, OMAP3430_CM_POLCTRL);
@ -487,7 +477,6 @@ void omap3_prcm_restore_context(void)
cm_write_mod_reg(prcm_context.iva2_cm_autiidle2, OMAP3430_IVA2_MOD,
CM_AUTOIDLE2);
cm_write_mod_reg(prcm_context.mpu_cm_autoidle2, MPU_MOD, CM_AUTOIDLE2);
cm_write_mod_reg(prcm_context.pll_cm_autoidle, PLL_MOD, CM_AUTOIDLE);
cm_write_mod_reg(prcm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
CM_CLKSTCTRL);
cm_write_mod_reg(prcm_context.mpu_cm_clkstctrl, MPU_MOD, CM_CLKSTCTRL);

13
arch/arm/mach-omap2/sleep34xx.S
View File

@ -245,7 +245,8 @@ 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)
@ -253,14 +254,14 @@ 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:
@ -271,6 +272,7 @@ 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
@ -387,6 +389,9 @@ 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 */

26
arch/arm/plat-omap/common.c
View File

@ -172,6 +172,32 @@ unsigned long long sched_clock(void)
clocksource_32k.mult, clocksource_32k.shift);
}
/**
* read_persistent_clock - Return time from a persistent clock.
*
* Reads the time from a source which isn't disabled during PM, the
* 32k sync timer. Convert the cycles elapsed since last read into
* nsecs and adds to a monotonically increasing timespec.
*/
static struct timespec persistent_ts;
static cycles_t cycles, last_cycles;
void read_persistent_clock(struct timespec *ts)
{
unsigned long long nsecs;
cycles_t delta;
struct timespec *tsp = &persistent_ts;
last_cycles = cycles;
cycles = clocksource_32k.read(&clocksource_32k);
delta = cycles - last_cycles;
nsecs = clocksource_cyc2ns(delta,
clocksource_32k.mult, clocksource_32k.shift);
timespec_add_ns(tsp, nsecs);
*ts = *tsp;
}
static int __init omap_init_clocksource_32k(void)
{
static char err[] __initdata = KERN_ERR

3
arch/arm/plat-omap/include/plat/irqs.h
View File

@ -499,6 +499,9 @@ extern void omap_init_irq(void);
extern int omap_irq_pending(void);
void omap_intc_save_context(void);
void omap_intc_restore_context(void);
void omap3_intc_suspend(void);
void omap3_intc_prepare_idle(void);
void omap3_intc_resume_idle(void);
#endif
#include <mach/hardware.h>