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-rw-r--r--arch/ia64/sn/kernel/setup.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 7a2d824c5ce3..1d009f93244d 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -388,6 +388,14 @@ void __init sn_setup(char **cmdline_p)
ia64_sn_plat_set_error_handling_features(); // obsolete
ia64_sn_set_os_feature(OSF_MCA_SLV_TO_OS_INIT_SLV);
ia64_sn_set_os_feature(OSF_FEAT_LOG_SBES);
+ /*
+ * Note: The calls to notify the PROM of ACPI and PCI Segment
+ * support must be done prior to acpi_load_tables(), as
+ * an ACPI capable PROM will rebuild the DSDT as result
+ * of the call.
+ */
+ ia64_sn_set_os_feature(OSF_PCISEGMENT_ENABLE);
+ ia64_sn_set_os_feature(OSF_ACPI_ENABLE);
#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
@@ -413,6 +421,16 @@ void __init sn_setup(char **cmdline_p)
if (! vga_console_membase)
sn_scan_pcdp();
+ /*
+ * Setup legacy IO space.
+ * vga_console_iobase maps to PCI IO Space address 0 on the
+ * bus containing the VGA console.
+ */
+ if (vga_console_iobase) {
+ io_space[0].mmio_base = vga_console_iobase;
+ io_space[0].sparse = 0;
+ }
+
if (vga_console_membase) {
/* usable vga ... make tty0 the preferred default console */
if (!strstr(*cmdline_p, "console="))