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powerpc: Add POWER8 setup code

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Just a copy of POWER7 for now.  Will update with new code later.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Neuling 2012-10-30 19:34:14 +00:00 • committed by Benjamin Herrenschmidt
parent cd5daaf713
commit aec937b1ee
2 changed files with 26 additions and 0 deletions
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24
arch/powerpc/kernel/cpu_setup_power.S
View file

@ -44,6 +44,30 @@ _GLOBAL(__restore_cpu_power7)
mtlr r11 mtlr r11
blr blr
_GLOBAL(__setup_cpu_power8)
mflr r11
bl __init_hvmode_206
mtlr r11
beqlr
li r0,0
mtspr SPRN_LPID,r0
bl __init_LPCR
bl __init_TLB
mtlr r11
blr
_GLOBAL(__restore_cpu_power8)
mflr r11
mfmsr r3
rldicl. r0,r3,4,63
beqlr
li r0,0
mtspr SPRN_LPID,r0
bl __init_LPCR
bl __init_TLB
mtlr r11
blr
__init_hvmode_206: __init_hvmode_206:
/* Disable CPU_FTR_HVMODE and exit if MSR:HV is not set */ /* Disable CPU_FTR_HVMODE and exit if MSR:HV is not set */
mfmsr r3 mfmsr r3

2
arch/powerpc/kernel/cputable.c
View file

@ -68,6 +68,8 @@ extern void __restore_cpu_pa6t(void);
extern void __restore_cpu_ppc970(void); extern void __restore_cpu_ppc970(void);
extern void __setup_cpu_power7(unsigned long offset, struct cpu_spec* spec); extern void __setup_cpu_power7(unsigned long offset, struct cpu_spec* spec);
extern void __restore_cpu_power7(void); extern void __restore_cpu_power7(void);
extern void __setup_cpu_power8(unsigned long offset, struct cpu_spec* spec);
extern void __restore_cpu_power8(void);
extern void __restore_cpu_a2(void); extern void __restore_cpu_a2(void);
#endif /* CONFIG_PPC64 */ #endif /* CONFIG_PPC64 */
#if defined(CONFIG_E500) #if defined(CONFIG_E500)