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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-07-15 13:03:11 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-08-14 14:58:08 +1000 |
| commit | 3fafe9c202321a3edc47386d2071af89555c9f45 (patch) | |
| tree | 7a809f8ab83049c69468e4c0a64f1ef977934d6a /arch/powerpc/platforms/powernv/setup.c | |
| parent | powerpc/powernv: Add helper to get ibm,chip-id of a node (diff) | |
| download | linux-dev-3fafe9c202321a3edc47386d2071af89555c9f45.tar.xz linux-dev-3fafe9c202321a3edc47386d2071af89555c9f45.zip | |
powerpc/powernv: Add PIO accessors for Power8 LPC bus
This uses the hooks provided by CONFIG_PPC_INDIRECT_PIO to
implement a set of hooks for IO port access to use the LPC
bus via OPAL calls for the first 64K of IO space
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/powernv/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 84438af96c05..4ddb339700b9 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -54,6 +54,12 @@ 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(); |