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| author | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2013-09-27 11:56:14 -0300 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2013-09-27 11:56:14 -0300 |
| commit | 1025c04cecd19882e28f16c4004034b475c372c5 (patch) | |
| tree | 2b7402887e86d54bff5a123228c9059eae5e32bd /arch/powerpc/platforms/powernv/setup.c | |
| parent | 4375f1037d52602413142e290608d0d84671ad36 (diff) | |
| parent | 5bcecf325378218a8e248bb6bcae96ec7362f8ef (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Conflicts:
net/bluetooth/hci_core.c
Diffstat (limited to 'arch/powerpc/platforms/powernv/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 84438af96c0..e239dcfa224 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -31,6 +31,7 @@ #include <asm/xics.h> #include <asm/rtas.h> #include <asm/opal.h> +#include <asm/kexec.h> #include "powernv.h" @@ -54,6 +55,12 @@ static void __init pnv_setup_arch(void) static void __init pnv_init_early(void) { + /* + * Initialize the LPC bus now so that legacy serial + * ports can be found on it + */ + opal_lpc_init(); + #ifdef CONFIG_HVC_OPAL if (firmware_has_feature(FW_FEATURE_OPAL)) hvc_opal_init_early(); @@ -147,6 +154,16 @@ static void pnv_shutdown(void) static void pnv_kexec_cpu_down(int crash_shutdown, int secondary) { xics_kexec_teardown_cpu(secondary); + + /* Return secondary CPUs to firmware on OPAL v3 */ + if (firmware_has_feature(FW_FEATURE_OPALv3) && secondary) { + mb(); + get_paca()->kexec_state = KEXEC_STATE_REAL_MODE; + mb(); + + /* Return the CPU to OPAL */ + opal_return_cpu(); + } } #endif /* CONFIG_KEXEC */ |