[coreboot-gerrit] New patch to review for coreboot: 8ee1c66 baytrail: allow configuration of io hole size

[Aaron Durbin (adurbin@google.com)]

Aaron Durbin (adurbin at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/5060

-gerrit

commit 8ee1c665fff7baf91b087b9d4fa066c13eb764bc
Author: Aaron Durbin <adurbin at chromium.org>
Date:   Wed Jan 22 10:53:06 2014 -0600

    baytrail: allow configuration of io hole size
    
    The updated MRC wrapper allow the IO hole size to be
    configured from the coreboot side of things.
    
    BUG=None
    BRANCH=baytrail
    CQ-DEPEND=CL:*152595
    TEST=Built and booted. Also changed io hole size from mainboard as test.
    
    Change-Id: I7a626764aecce94bbaf35d884606480f22a9aa84
    Signed-off-by: Aaron Durbin <adurbin at chromium.org>
    Reviewed-on: https://chromium-review.googlesource.com/183269
    Reviewed-by: Duncan Laurie <dlaurie at chromium.org>
---
 src/soc/intel/baytrail/baytrail/mrc_wrapper.h | 3 ++-
 src/soc/intel/baytrail/romstage/raminit.c     | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/soc/intel/baytrail/baytrail/mrc_wrapper.h b/src/soc/intel/baytrail/baytrail/mrc_wrapper.h
index 2074100..893debc 100644
--- a/src/soc/intel/baytrail/baytrail/mrc_wrapper.h
+++ b/src/soc/intel/baytrail/baytrail/mrc_wrapper.h
@@ -28,7 +28,7 @@
 #ifndef _MRC_WRAPPER_H_
 #define _MRC_WRAPPER_H_
 
-#define MRC_PARAMS_VER  2
+#define MRC_PARAMS_VER  3
 
 #define NUM_CHANNELS 2
 
@@ -79,6 +79,7 @@ struct mrc_params {
 
 	int txe_size_mb; /* TXE memory size in megabytes. */
 	int rmt_enabled; /* Enable RMT training + prints. */
+	int io_hole_mb;  /* Size of IO hole in MiB. */
 
 	/* Outputs */
 	void *txe_base_address;
diff --git a/src/soc/intel/baytrail/romstage/raminit.c b/src/soc/intel/baytrail/romstage/raminit.c
index d49735b..74bee70 100644
--- a/src/soc/intel/baytrail/romstage/raminit.c
+++ b/src/soc/intel/baytrail/romstage/raminit.c
@@ -128,6 +128,11 @@ void raminit(struct mrc_params *mp, int prev_sleep_state)
 #if CONFIG_MRC_RMT
 	mp->rmt_enabled = 1;
 #endif
+
+	/* Default to 2GiB IO hole. */
+	if (!mp->io_hole_mb)
+		mp->io_hole_mb = 2048;
+
 	if (recovery_mode_enabled()) {
 		printk(BIOS_DEBUG, "Recovery mode: not using MRC cache.\n");
 	} else if (!mrc_cache_get_current(&cache)) {