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[U-Boot] armv7: ls1021aqds: Set cpo_sample for erratum A-009942

Message ID 1485379610-20378-1-git-send-email-york.sun@nxp.com
State Accepted
Commit e9866cf759f2f0184607024be30e7f78a65cb614
Delegated to: York Sun
Headers show

Commit Message

York Sun Jan. 25, 2017, 9:26 p.m. UTC 
Set cpo_sample as suggested by the driver
"WARN: pls set popts->cpo_sample = 0x58 in <board>/ddr.c to optimize
cpo".

Signed-off-by: York Sun <york.sun@nxp.com>
CC: Shengzhou Liu <Shengzhou.Liu@nxp.com>
---

 board/freescale/ls1021aqds/ddr.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

York Sun Feb. 6, 2017, 6:06 p.m. UTC | #1 
On 01/25/2017 01:27 PM, york sun wrote:
> Set cpo_sample as suggested by the driver
> "WARN: pls set popts->cpo_sample = 0x58 in <board>/ddr.c to optimize
> cpo".
>
> Signed-off-by: York Sun <york.sun@nxp.com>
> CC: Shengzhou Liu <Shengzhou.Liu@nxp.com>
> ---

Applied to u-boot-qoriq master.

York
diff mbox

Patch

diff --git a/board/freescale/ls1021aqds/ddr.c b/board/freescale/ls1021aqds/ddr.c
index 6435bf9..2f66ba9 100644
--- a/board/freescale/ls1021aqds/ddr.c
+++ b/board/freescale/ls1021aqds/ddr.c
@@ -96,6 +96,9 @@  found:
 #else
 	popts->cswl_override = DDR_CSWL_CS0;
 
+	/* optimize cpo for erratum A-009942 */
+	popts->cpo_sample = 0x58;
+
 	/* DHC_EN =1, ODT = 75 Ohm */
 	popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm);
 	popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm);