From: Fabio Estevam <festevam@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] mx6ul_14x14_evk: Fix DDR calibration values
Date: Mon, 29 Aug 2016 00:20:12 -0300 [thread overview]
Message-ID: <1472440812-15395-1-git-send-email-festevam@gmail.com> (raw)
From: Fabio Estevam <fabio.estevam@nxp.com>
When running NXP 4.1 kernel with U-Boot mainline we observe a
hang when going into the lowest operational point of cpufreq.
Comparing the DDR calibration values against NXP U-Boot showed
that the values were incorrect.
Adjust the calibration values so that we can avoid such system hang.
Reported-by: Eric Nelson <eric@nelint.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
---
board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
index c213861..77c561d 100644
--- a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
+++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
@@ -784,10 +784,10 @@ static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
};
static struct mx6_mmdc_calibration mx6_mmcd_calib = {
- .p0_mpwldectrl0 = 0x00070007,
- .p0_mpdgctrl0 = 0x41490145,
- .p0_mprddlctl = 0x40404546,
- .p0_mpwrdlctl = 0x4040524D,
+ .p0_mpwldectrl0 = 0x00000000,
+ .p0_mpdgctrl0 = 0x41570155,
+ .p0_mprddlctl = 0x4040474A,
+ .p0_mpwrdlctl = 0x40405550,
};
struct mx6_ddr_sysinfo ddr_sysinfo = {
--
2.7.4
next reply other threads:[~2016-08-29 3:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-29 3:20 Fabio Estevam [this message]
2016-08-29 5:32 ` [U-Boot] [PATCH] mx6ul_14x14_evk: Fix DDR calibration values Peng Fan
2016-08-29 11:58 ` Fabio Estevam
2016-08-29 17:00 ` Eric Nelson
2016-08-29 17:14 ` Eric Nelson
2016-08-29 18:06 ` Fabio Estevam
2016-08-29 18:51 ` Eric Nelson
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