baytrail: add initial support

The initial Bay Trail code is intended to support
the mobile and desktop version of Bay Trail. This support
can train memory and execute through ramstage. However,
the resource allocation is not curently handled correctly.
The MRC cache parameters are successfully saved and reused
after the initial cold boot.

BUG=chrome-os-partner:22292
BRANCH=None
TEST=Built and booted on a reference board through ramstage.

Change-Id: I238ede326802aad272c6cca39d7ad4f161d813f5
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/168387
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4847
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/soc/intel/baytrail/placeholders.c b/src/soc/intel/baytrail/placeholders.c
new file mode 100644
index 0000000000..8f2342adc0
--- /dev/null
+++ b/src/soc/intel/baytrail/placeholders.c
@@ -0,0 +1,21 @@
+
+#include <arch/acpi.h>
+#include <cpu/cpu.h>
+#include <device/pci_rom.h>
+#include <baytrail/acpi.h>
+
+
+void generate_cpu_entries(void) {}
+
+void acpi_create_intel_hpet(acpi_hpet_t * hpet) {}
+
+void acpi_create_serialio_ssdt(acpi_header_t *ssdt) {}
+
+unsigned long acpi_fill_mcfg(unsigned long current) { return current; }
+
+void smm_setup_structures(void *gnvs, void *tcg, void *smi1) {}
+
+void smm_init(void) {}
+
+/* Rmodules don't like weak symbols. */
+u32 map_oprom_vendev(u32 vendev) { return vendev; }