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ARM: Add board-specific initialization hook for PSCI

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Tegra boards will have to initialize power management for the PSCI
support this way.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Jan Kiszka
2015-04-21 07:18:34 +02:00
committed by Tom Warren
parent 91a34ed9b1
commit ce416fac38
2 changed files with 7 additions and 0 deletions
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6
arch/arm/cpu/armv7/virt-v7.c
View File

@@ -75,6 +75,10 @@ void __weak smp_kick_all_cpus(void)
kick_secondary_cpus_gic(gic_dist_addr); kick_secondary_cpus_gic(gic_dist_addr);
} }
__weak void psci_board_init(void)
{
}
int armv7_init_nonsec(void) int armv7_init_nonsec(void)
{ {
unsigned int reg; unsigned int reg;
@@ -112,6 +116,8 @@ int armv7_init_nonsec(void)
for (i = 1; i <= itlinesnr; i++) for (i = 1; i <= itlinesnr; i++)
writel((unsigned)-1, gic_dist_addr + GICD_IGROUPRn + 4 * i); writel((unsigned)-1, gic_dist_addr + GICD_IGROUPRn + 4 * i);
psci_board_init();
/* /*
* Relocate secure section before any cpu runs in secure ram. * Relocate secure section before any cpu runs in secure ram.
* smp_kick_all_cpus may enable other cores and runs into secure * smp_kick_all_cpus may enable other cores and runs into secure

1
arch/arm/include/asm/psci.h
View File

@@ -34,6 +34,7 @@
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
int psci_update_dt(void *fdt); int psci_update_dt(void *fdt);
void psci_board_init(void);
#endif /* ! __ASSEMBLY__ */ #endif /* ! __ASSEMBLY__ */
#endif /* __ARM_PSCI_H__ */ #endif /* __ARM_PSCI_H__ */