From: Jit Loon Lim <jit.loon.lim@intel.com>
To: u-boot@lists.denx.de
Cc: Jagan Teki <jagan@amarulasolutions.com>,
Vignesh R <vigneshr@ti.com>, Marek <marex@denx.de>,
Simon <simon.k.r.goldschmidt@gmail.com>,
Tien Fong <tien.fong.chee@intel.com>,
Kok Kiang <kok.kiang.hea@intel.com>,
Siew Chin <elly.siew.chin.lim@intel.com>,
Sin Hui <sin.hui.kho@intel.com>, Raaj <raaj.lokanathan@intel.com>,
Dinesh <dinesh.maniyam@intel.com>,
Boon Khai <boon.khai.ng@intel.com>,
Alif <alif.zakuan.yuslaimi@intel.com>,
Teik Heng <teik.heng.chong@intel.com>,
Hazim <muhammad.hazim.izzat.zamri@intel.com>,
Jit Loon Lim <jit.loon.lim@intel.com>,
Sieu Mun Tang <sieu.mun.tang@intel.com>
Subject: [PATCH] ddr: altera: n5x: Copies calibration data to DDR when DDR retention is set
Date: Wed, 23 Nov 2022 22:32:57 +0800 [thread overview]
Message-ID: <20221123143257.5337-1-jit.loon.lim@intel.com> (raw)
From: Tien Fong Chee <tien.fong.chee@intel.com>
Ensure the PHY calibration data is copied to DDR only when DDR retention
is set.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com>
---
drivers/ddr/altera/sdram_n5x.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/ddr/altera/sdram_n5x.c b/drivers/ddr/altera/sdram_n5x.c
index 8d28cdbc03..72c231b3f1 100644
--- a/drivers/ddr/altera/sdram_n5x.c
+++ b/drivers/ddr/altera/sdram_n5x.c
@@ -3045,10 +3045,13 @@ int sdram_mmr_init_full(struct udevice *dev)
sdram_set_firewall(&bd);
- ddr_offset = simple_strtoul(offset, &endptr, 16);
- if (!(offset == endptr || *endptr != '\0'))
- memcpy((void *)ddr_offset,
- (const void *)SOC64_OCRAM_PHY_BACKUP_BASE, SZ_4K);
+ if (is_ddr_retention_enabled(reg)) {
+ ddr_offset = simple_strtoul(offset, &endptr, 16);
+ if (!(offset == endptr || *endptr != '\0'))
+ memcpy((void *)ddr_offset,
+ (const void *)SOC64_OCRAM_PHY_BACKUP_BASE,
+ SZ_4K);
+ }
return 0;
}
--
2.26.2
reply other threads:[~2022-11-23 14:33 UTC|newest]
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