From: Tien Fong Chee <tien.fong.chee@intel.com>
Date: Wed, 27 Apr 2022 04:27:21 +0000 (+0800)
Subject: ddr: altera: Ignore bit[7-4] for both seq2core & core2seq handshake in HPS
X-Git-Tag: v2025.01-rc5-pxa1908~1376^2~7
X-Git-Url: http://git.dujemihanovic.xyz/%7B%7B%20.Permalink%20%7D%7D?a=commitdiff_plain;h=ee06c5390f2f1e2f1bc23e14a7cd8665c1e42ff4;p=u-boot.git

ddr: altera: Ignore bit[7-4] for both seq2core & core2seq handshake in HPS

Bit[7-4] for both register seq2core and core2seq handshake in HPS are not
required for triggering DDR re-calibration or resetting EMIF. So, ignoring
these bits just for playing it safe.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
---

diff --git a/drivers/ddr/altera/sdram_soc64.h b/drivers/ddr/altera/sdram_soc64.h
index 7460f8c220..07a0f9f2ae 100644
--- a/drivers/ddr/altera/sdram_soc64.h
+++ b/drivers/ddr/altera/sdram_soc64.h
@@ -53,7 +53,7 @@ struct altera_sdram_plat {
 #define DDR_HMC_INTSTAT_DERRPENA_SET_MSK	BIT(1)
 #define DDR_HMC_INTSTAT_ADDRMTCFLG_SET_MSK	BIT(16)
 #define DDR_HMC_INTMODE_INTMODE_SET_MSK		BIT(0)
-#define DDR_HMC_RSTHANDSHAKE_MASK		0x000000ff
+#define DDR_HMC_RSTHANDSHAKE_MASK		0x0000000f
 #define DDR_HMC_CORE2SEQ_INT_REQ		0xF
 #define DDR_HMC_SEQ2CORE_INT_RESP_MASK		BIT(3)
 #define DDR_HMC_HPSINTFCSEL_ENABLE_MASK		0x001f1f1f