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ARM: OMAP5: Fix mpuss_early_init

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We need to properly initialize mpuss also on omap5 like we do on omap4.
Otherwise we run into similar kexec problems like we had on omap4 when
trying to kexec from a kernel with PM initialized.

Fixes: 0573b957fc ("ARM: OMAP4+: Prevent CPU1 related hang with kexec")
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren
2016-11-07 16:50:11 -07:00
parent da6d5993bf
commit 8a8be46afe
4 changed files with 58 additions and 17 deletions
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38
arch/arm/mach-omap2/common.h
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@@ -262,8 +262,6 @@ extern void __iomem *omap4_get_sar_ram_base(void);
extern void omap4_mpuss_early_init(void);
extern void omap_do_wfi(void);
extern void omap4_secondary_startup(void);
extern void omap4460_secondary_startup(void);
#ifdef CONFIG_SMP
/* Needed for secondary core boot */
@@ -275,16 +273,11 @@ extern void omap4_cpu_die(unsigned int cpu);
extern int omap4_cpu_kill(unsigned int cpu);
extern const struct smp_operations omap4_smp_ops;
extern void omap5_secondary_startup(void);
extern void omap5_secondary_hyp_startup(void);
#endif
#if defined(CONFIG_SMP) && defined(CONFIG_PM)
extern int omap4_mpuss_init(void);
extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
extern int omap4_finish_suspend(unsigned long cpu_state);
extern void omap4_cpu_resume(void);
extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
#else
static inline int omap4_enter_lowpower(unsigned int cpu,
@@ -305,14 +298,41 @@ static inline int omap4_mpuss_init(void)
return 0;
}
#endif
#ifdef CONFIG_ARCH_OMAP4
void omap4_secondary_startup(void);
void omap4460_secondary_startup(void);
int omap4_finish_suspend(unsigned long cpu_state);
void omap4_cpu_resume(void);
#else
static inline void omap4_secondary_startup(void)
{
}
static inline void omap4460_secondary_startup(void)
{
}
static inline int omap4_finish_suspend(unsigned long cpu_state)
{
return 0;
}
static inline void omap4_cpu_resume(void)
{}
{
}
#endif
#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
void omap5_secondary_startup(void);
void omap5_secondary_hyp_startup(void);
#else
static inline void omap5_secondary_startup(void)
{
}
static inline void omap5_secondary_hyp_startup(void)
{
}
#endif
void pdata_quirks_init(const struct of_device_id *);