[coreboot-gerrit] Patch set updated for coreboot: nb/amd/mct_ddr3: Do not wait for predriver code application

[Timothy Pearson (tpearson@raptorengineeringinc.com)]

Timothy Pearson (tpearson at raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14740

-gerrit

commit ae5fa67a53e5a95c328a3ec2be4dfdd7991f23e4
Author: Timothy Pearson <tpearson at raptorengineeringinc.com>
Date:   Sat May 7 17:29:52 2016 -0500

    nb/amd/mct_ddr3: Do not wait for predriver code application
    
    The workaround for predriver calibration application is no longer
    required as multiple previous commits have stabilized memory
    clock changes.  Remove the workaround to prevent lockups on
    certain combinations of mainboards, CPUs, and DIMMs.
    
    Change-Id: Iae72bda87dd752705715c063662152c2b7d800ba
    Signed-off-by: Timothy Pearson <tpearson at raptorengineeringinc.com>
---
 src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
index bea67b2..2cddec1 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
@@ -7307,24 +7307,6 @@ static void InitPhyCompensation(struct MCTStatStruc *pMCTstat,
 		dword &= ~(0xffff);
 		dword |= (0x8000 | tx_pre);
 		Set_NB32_index_wait_DCT(dev, dct, index_reg, 0x0d0f2202, dword);
-
-		if (!is_model10_1f()) {
-			/* Be extra safe and wait for the predriver calibration
-			 * to be applied to the hardware.  The BKDG does not
-			 * require this, but it does take some time for the
-			 * data to propagate, so it's probably a good idea.
-			 */
-			uint8_t predriver_cal_pending = 1;
-			printk(BIOS_DEBUG, "Waiting for predriver calibration to be applied...");
-			while (predriver_cal_pending) {
-				predriver_cal_pending = 0;
-				for (index = 0; index < 0x9; index++) {
-					if (Get_NB32_index_wait_DCT(dev, dct, index_reg, 0x0d0f0002 | (index << 8)) & 0x8000)
-						predriver_cal_pending = 1;
-				}
-			}
-			printk(BIOS_DEBUG, "done!\n");
-		}
 	} else {
 		dword = Get_NB32_index_wait_DCT(dev, dct, index_reg, 0x00);
 		dword = 0;