ppc64 iSeries: Call early_setup() on iSeries

Misc steps to incorporate the flat device tree on iSeries.

- define iseries_probe()
- call build_iSeries_Memory_Map() earlier
- return __pa() of the flat device tree from iSeries_early_setup()
- actually call early_setup() for iSeries
- add iseries_md to machdep_calls
- build prom.o for iSeries
- enable /proc/device-tree for iSeries

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

1 files changed, 15 insertions, 7 deletions

diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c
index 99e4307affd6..27faf4f0967a 100644
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ b/arch/ppc64/kernel/iSeries_setup.c
@@ -359,12 +359,6 @@ static void __init iSeries_init_early(void)
          */
         iommu_init_early_iSeries();
 
-        /*
-         * Initialize the table which translate Linux physical addresses to
-         * AS/400 absolute addresses
-         */
-        build_iSeries_Memory_Map();
-
         iSeries_get_cmdline();
 
         /* Save unparsed command line copy for /proc/cmdline */
@@ -894,6 +888,11 @@ static int iseries_dedicated_idle(void)
 void __init iSeries_init_IRQ(void) { }
 #endif
 
+static int __init iseries_probe(int platform)
+{
+        return PLATFORM_ISERIES_LPAR == platform;
+}
+
 struct machdep_calls __initdata iseries_md = {
         .setup_arch     = iSeries_setup_arch,
         .get_cpuinfo    = iSeries_get_cpuinfo,
@@ -909,6 +908,7 @@ struct machdep_calls __initdata iseries_md = {
         .get_rtc_time   = iSeries_get_rtc_time,
         .calibrate_decr = iSeries_calibrate_decr,
         .progress       = iSeries_progress,
+        .probe          = iseries_probe,
         /* XXX Implement enable_pmcs for iSeries */
 };
 
@@ -1047,9 +1047,17 @@ void build_flat_dt(struct iseries_flat_dt *dt)
         dt_push_u32(dt, OF_DT_END);
 }
 
-void __init iSeries_early_setup(void)
+void * __init iSeries_early_setup(void)
 {
         iSeries_fixup_klimit();
 
+        /*
+         * Initialize the table which translate Linux physical addresses to
+         * AS/400 absolute addresses
+         */
+        build_iSeries_Memory_Map();
+
         build_flat_dt(&iseries_dt);
+
+        return (void *) __pa(&iseries_dt);
 }